prEN ISO 12643-3

Graphic technology - Safety requirements for graphic technology equipment and systems - Part 3: Binding and finishing equipment and systems (ISO/DIS 12643-3:2020)

This part of ISO 12643 provides safety requirements specific to binding and finishing equipment and systems. This part of ISO 12643 shall be used in conjunction with ISO 12643-1. It is intended to be used in conjunction with the general requirements given in ISO 12643-1.
This part of ISO 12643 provides additional safety requirements for the design and construction of new equipment used to convert printed or blank substrates into cut, folded, collated, assembled, bound, or otherwise finished product. It can also be applicable to processes for preparing substrate for the printing process.
It is applicable to a wide range of equipment used in the binding and finishing process.

Graphische Technik - Sicherheitsanforderungen an Ausrüstungen und Systeme der graphischen Technik - Teil 3: Ausrüstungen und Systeme in der Buchbinderei und Druckweiterverarbeitung (ISO/DIS 12643-3:2020)

Technologie graphique - Exigences de sécurité pour les systèmes et l'équipement de technologie graphique - Partie 3: Systèmes et équipement de reliure et de finissage (ISO/DIS 12643-3:2020)

Grafična tehnologija - Varnostne zahteve za grafično tehnološko opremo in sisteme - 3. del: Oprema v knjigoveznici in grafični dodelavi ter sistemi (ISO/DIS 12643-3:2014)

General Information

• Status: Not Published
• Publication Date: 12-Jul-2023
• ICS: 37.100.10 - Reproduction equipment
• ICS: 85.100 - Equipment for the paper industry
• Technical Committee: CEN/TC 198 - Printing and paper machinery - Safety
• Drafting Committee: CEN/TC 198/WG 1 - Printing and paper converting machines - Drafting of safety standards
• Current Stage: 4599 - Dispatch of FV draft to CMC - Finalization for Vote
• Start Date: 10-Aug-2022
• Completion Date: 10-Aug-2022
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Directive: 94/9/EC - Directive 94/9/EC of the European Parliament and the Council of 23 March 1994 on the approximation of the laws of the Member States concerning equipment and protective systems intended for use in potentially explosive atmospheres
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: oSIST prEN ISO 12643-3:2014 - Graphic technology - Safety requirements for graphic technology equipment and systems - Part 3: Binding and finishing equipment and systems (ISO/DIS 12643-3:2014)

Relations

• Revises: EN 1010-3:2002+A1:2009 - Safety of machinery - Safety requirements for the design and construction of printing and paper converting machines - Part 3: Cutting machines
• Effective Date: 18-Jan-2023
• Revises: EN 1010-4:2004+A1:2009 - Safety of machinery - Safety requirements for the design and construction of printing and paper converting machines - Part 4: Bookbinding, paper converting and finishing machines
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN ISO 12643-3:2014
01-september-2014
*UDILþQDWHKQRORJLMD9DUQRVWQH]DKWHYH]DJUDILþQRWHKQRORãNRRSUHPRLQ

VLVWHPHGHO2SUHPDYNQMLJRYH]QLFLLQJUDILþQLGRGHODYLWHUVLVWHPL,62',6



Graphic technology - Safety requirements for graphic technology equipment and systems

- Part 3: Binding and finishing equipment and systems (ISO/DIS 12643-3:2014)

Technologie graphique - Exigences de sécurité pour les systèmes et l'équipement de

technologie graphique - Partie 3: Systèmes et équipement de reliure et de finissage

(ISO/DIS 12643-3:2014)
Ta slovenski standard je istoveten z: prEN ISO 12643-3
ICS:
37.100.10 Reprodukcijska oprema Reproduction equipment
oSIST prEN ISO 12643-3:2014 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 12643-3:2014
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oSIST prEN ISO 12643-3:2014
DRAFT INTERNATIONAL STANDARD
ISO/DIS 12643-3
ISO/TC 130 Secretariat: SAC
Voting begins on: Voting terminates on:
2014-05-22 2014-10-22
Graphic technology — Safety requirements for graphic
technology equipment and systems —
Part 3:
Binding and finishing equipment and systems

Technologie graphique — Exigences de sécurité pour les systèmes et l’équipement de technologie

graphique —
Partie 3: Systèmes et équipement de reliure et de finissage
ICS: 37.100.10
ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for
Standardization (ISO), and processed under the ISO lead mode of collaboration
as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member
bodies for a parallel five month enquiry.

Should this draft be accepted, a final draft, established on the basis of comments

received, will be submitted to a parallel two-month approval vote in ISO and
THIS DOCUMENT IS A DRAFT CIRCULATED
formal vote in CEN.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
To expedite distribution, this document is circulated as received from the
IN ADDITION TO THEIR EVALUATION AS
committee secretariat. ISO Central Secretariat work of editing and text
BEING ACCEPTABLE FOR INDUSTRIAL,
composition will be undertaken at publication stage.
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 12643-3:2014(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2014
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oSIST prEN ISO 12643-3:2014
ISO/DIS 12643-3:2014(E)
Copyright notice

This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as

permitted under the applicable laws of the user’s country, neither this ISO draft nor any extract

from it may be reproduced, stored in a retrieval system or transmitted in any form or by any means,

electronic, photocopying, recording or otherwise, without prior written permission being secured.

Requests for permission to reproduce should be addressed to either ISO at the address below or ISO’s

member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.
ii © ISO 2014 – All rights reserved
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oSIST prEN ISO 12643-3:2014
ISO/DIS 12643-3
Contents Page

Foreword ......................................................................................................................................................... iv

Introduction ...................................................................................................................................................... v

1  Scope ................................................................................................................................................... 1

2  Normative references ......................................................................................................................... 1

3  Terms and definitions ......................................................................................................................... 2

4  Conformity with this part of ISO 12643 ............................................................................................. 4

5  Guarding of significant hazards ........................................................................................................ 5

5.1  General ................................................................................................................................................ 5

5.2  Interlocks ............................................................................................................................................. 5

5.3  Guarding of hoppers and hopper feeders ......................................................................................... 6

5.4  Guarding on binding and finishing machines .................................................................................. 6

5.5  Inserting and collating machines .................................................................................................... 26

5.6  Counter-stackers .............................................................................................................................. 26

5.7  Paper-embossing machines ............................................................................................................. 27

5.8  Finishing machines........................................................................................................................... 28

5.9  Guillotine cutters .............................................................................................................................. 35

5.10  Trimmers ........................................................................................................................................... 46

5.11  Three-knife trimmer with manual infeed ......................................................................................... 47

5.12  Onserters/attaching machines ......................................................................................................... 48

5.13  Overcover/protective wrapper gluers .............................................................................................. 48

5.14  Corner-rounding machines .............................................................................................................. 48

6  Verification of safety requirements and/or protective measures .................................................. 49

7  Information for use ........................................................................................................................... 49

7.1  Minimum requirements for machine markings ............................................................................... 49

7.2  Contents of instruction handbook ................................................................................................... 49

Annex A (informative) Hazards associated with binding and finishing equipment and systems ............ 53

Annex B (informative) Protection zones against explosion ........................................................................ 60

Annex C (normative) Safety distance of ESPDs on guillotines and three knife trimmers with

manual infeed .................................................................................................................................... 62

Bibliography ................................................................................................................................................... 63

© ISO 2014 – All rights reserved iii
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oSIST prEN ISO 12643-3:2014
ISO/DIS 12643-3
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies

(ISO member bodies). The work of preparing International Standards is normally carried out through ISO

technical committees. Each member body interested in a subject for which a technical committee has been

established has the right to be represented on that committee. International organizations, governmental and

non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the

International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 12643-3 was prepared by Technical Committee ISO/TC 130, Graphic technology.

This third edition of ISO 12643-3 constitutes a technical revision of the second edition (ISO 12643-3:2010).

Significant changes incorporated into this third edition include, but are not limited to:

 addition of Clause 6, Verification of safety requirements and/or protective measures; and

 reorganization of clauses to align with requirements in ISO Guide 78, Safety of machinery – Rules for

drafting and presentation of safety standards.

It is the intent of ISO/TC 130 that there be a transition period between the second and third editions of

ISO 12643-2. The user is referred to Clause 4 of this standard for guidance in this area.

As from 2014-01-01, ISO 12643-3:2014 will cancel and replace ISO 12643-3:2010. Accordingly, as from

2014-01-01, only ISO 12643-3:2014 will be applicable to new equipment manufactured.

ISO 12643 consists of the following parts, under the general title Graphic technology — Safety requirements

for graphic technology equipment and systems:
 Part 1: General requirements
 Part 2: Prepress and press equipment and systems
 Part 3: Binding and finishing equipment and systems
 Part 4: Converting equipment and systems
 Part 5: Stand-alone platen presses
iv © ISO 2014 – All rights reserved
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oSIST prEN ISO 12643-3:2014
ISO/DIS 12643-3
Introduction
[1]
This part of ISO 12643 is a type-C standard as stated in ISO 12100 .

The machinery concerned and the extent to which hazards, hazardous situations or hazardous events are

covered are indicated in the Scope of this document.

When requirements of this type-C standard are different from those which are stated in type-A or type-B

standards, the requirements of this type-C standard take precedence over the requirements of the other

standards for machines that have been designed and built according to the requirements of this type-C

standard.

During the development of this part of ISO 12643, existing relevant standards of other countries were taken

into consideration. An effort has been made to harmonize the requirements of all countries, recognizing that

national standards or laws may dictate national requirements. In cases where it was known that there is a

national requirement that differs from this part of ISO 12643, that has been noted.

This part of ISO 12643 was developed to harmonize the requirements of the following US and European

safety standards:

 ANSI B65-1, Graphic technology — Safety requirements for graphic technology equipment and

systems — Part 1: General requirements

 ANSI B65-3, Graphic technology — Safety requirements for graphic technology equipment and

systems — Part 3: Binding and finishing equipment and systems

 EN 1010-1, Safety of machinery — Safety requirements for the design and construction of printing and

paper converting machines — Part 1: Common requirements

 EN 1010-3, Safety of machinery — Safety requirements for the design and construction of printing and

paper converting machines — Part 3: Cutting machines

 EN 1010-4, Safety of machinery — Safety requirements for the design and construction of printing and

paper converting machines — Part 4: Bookbinding, paper converting and finishing machines

© ISO 2014 – All rights reserved v
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oSIST prEN ISO 12643-3:2014
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oSIST prEN ISO 12643-3:2014
DRAFT INTERNATIONAL STANDARD ISO/DIS 12643-3
Graphic technology — Safety requirements for graphic
technology equipment and systems — Part 3: Binding and
finishing equipment and systems
1 Scope

This part of ISO 12643 provides safety requirements specific to binding and finishing equipment and systems.

It is intended to be used in conjunction with the general requirements given in ISO 12643-1.

This part of ISO 12643 provides additional safety requirements for the design and construction of new

equipment used to convert printed or blank substrates into cut, folded, collated, assembled, bound, or

otherwise finished product. It can also be applicable to processes for preparing substrate for the printing

process.

It is applicable to a wide range of equipment used in the binding and finishing process.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated

references, only the edition cited applies. For undated references, the latest edition of the referenced

document (including any amendments) applies.

ISO 12643-1, Graphic technology — Safety requirements for graphic technology equipment and systems —

Part 1: General requirements

ISO 13732-1, Ergonomics of the thermal environment — Methods for the assessment of human responses to

contact with surfaces — Part 1: Hot surfaces

ISO 13849-1, Safety of machinery — Safety-related parts of control systems — Part 1: General principles for

design

ISO 13857, Safety of machinery — Safety distances to prevent hazard zones being reached by upper and

lower limbs

ISO 14119, Safety of machinery — Interlocking devices associated with guards — Principles for design and

selection

ISO 14120, Safety of machinery — Guards — General requirements for the design and construction of fixed

and movable guards

ISO 14123-1, Safety of machinery — Reduction of risks to health from hazardous substances emitted by

machinery — Part 1: Principles and specifications for machinery manufacturers

ISO 14123-2, Safety of machinery — Reduction of risks to health from hazardous substances emitted by

machinery — Part 2: Methodology leading to verification procedures

IEC 62061, Safety of machinery — Functional safety of safety-related electrical, electronic and programmable

electronic control systems

EN 1539, Dryers and ovens in which flammable substances are released — Safety requirements

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oSIST prEN ISO 12643-3:2014
ISO/DIS 12643-3
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 12643-1, ISO 13849-1 and the

following apply.
3.1
anti-repeat device

mechanical or electromechanical mechanism that ensures that only one cutting cycle occurs for each manual

activation or automatic cut if the primary stopping system or single-cycle device (3.31) fails

3.2
automatic cutting sequence

programmed succession of clamping operations and/or cutting movements that is initiated by the operator and

proceeds to a specified point without further intervention by the operator
3.3
back-rounding and pressing machine

apparatus for processing book signatures, i.e. for rounding the spine and the trimmed front edge of book

signatures and compressing the resulting signatures
3.4
backgauge

movable device (automatic or manual) on a guillotine cutter, positioned square to the cutting table, used to

stop the stack of material to be cut when the material is pushed into the opening under the cutting blade by

the operator, as well as to determine the dimensions of the cut
3.5
backgauge drive
mechanism to position the backgauge (3.4) prior to the initiation of the cut
3.6
backlining and head-banding machines

hard-coverbookbinding equipment for the automatic production of hard-cover books where the binding

together of the signatures is rounded or flat, with glue, gauze, or paper
3.7
book cover crease forming machine

hard-coverbookbinding apparatus for creating, under heat and pressure, a permanent bend in the cover of a

hard-cover book, then pressing the entire cover surface
3.8
book press
device used for flattening books
3.9
book signature press

power-operated device used for flattening book signatures, which are fed and aligned manually

3.10
casing-in machine

hard-cover bookbindingapparatus for gluing the end papers of the book signatures to the interior surfaces of

the book cover
3.11
clamp

device using pressure to secure product so that it does not move during an operation

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oSIST prEN ISO 12643-3:2014
ISO/DIS 12643-3
3.12
coater

finishing machine that applies a predetermined thickness of a liquid substance (e.g. glue, varnish, ink) on

substrates made of paper or a similar material
3.13
counter-stacker

machine for stacking piles of leaflets, books, magazines or newspapers such that the successive layers are

positioned at 180° to the previous layer
3.14
cutting cycle

machines with (a) manually driven clamp(s) (3.11) programmed succession of operations that begins when

the knife drive is activated and ends when the knife returns to its retracted position

3.15
cutting cycle

machines with (a) power-driven clamp(s) (3.11) programmed succession of operations that begins when

high-pressure clamping is initiated and ends when the knife(knives) and clamp(s) return to their retracted

positions after a single clamp/knife stroke
3.16
cutting zone

three-dimensional space through which any part of the knife(knives) and/or clamp(s) (3.11) travels during the

entire cutting cycle (3.15)
3.17
gang stitcher

machine for stitching folded sheets of paper, during the operation in which individual folded sheets are

removed by feeding grippers and the open sheets are stacked on top of each other on a transport chain for

subsequent back-stitching
3.18
gathering machine
apparatus that assembles sheets or folded sheets in a binding line
3.19
guillotine cutter

power-driven machine having a single knife that is used primarily to cut paper products, stacks of paper, or

other substrates, as specified by the manufacturer
NOTE 1 to entry This definition includes equipment classified as mill trimmers.
3.20
high-pressure clamping

operation of clamp(s) (3.11) with a dynamic force in excess of 300 N for machines up to and including 1,6 m

in width, or in excess of 500 N for machines greater than 1,6 m in width, when measured at 75 % of the clamp

opening (e.g. with the clamp at 25 % of its maximum travel distance measured from the retracted position)

NOTE 1 to entry The 75 % value is to ensure that the measurement is made at the position that approximates to the

size of an operator's hand.
3.21
inserting machine

apparatus that inserts printed matter such as leaflets and magazines at a predetermined position in other

printed products, such as newspapers or magazines
3.22
knife drive

mechanism by which the knife of the guillotine is forced through the material to be cut

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oSIST prEN ISO 12643-3:2014
ISO/DIS 12643-3
3.23
laminator

paper-finishing machine that applies a solid material (e.g. foil, paper) to a substrate made of paper or a similar

material
3.24
low-pressure clamping

for machines with (a) power-driven clamp(s) (3.11) operation of clamps with a dynamic force not exceeding

300 N for machines up to and including 1,6 m in width, or not exceeding 500 N for machines greater than

1,6 m in width, when measured at 75 % of the clamp opening (with the clamp at 25 % of its maximum travel

measured from the retracted position)

NOTE 1 to entry The 75 % value is to ensure that the measurement is made at the position that approximates to the

size of an operator's hand.
3.25
manual clamping

operation of clamp(s) (3.11) in which the dynamic and static forces and motion of the clamp are directly

supplied by the operator
3.26
paper drill
machine used to drill holes into piles of paper
3.27
paper-embossing machine

machine for finishing paper surfaces by using cylinders to press a design in relief into the paper

3.28
perfect binder

machine for the automatic production of brochures (soft-cover) or book signatures (hard-cover) where

gathered folded sheets or single sheets are bound to form book or brochure signatures by applying glue on

the pre-processed book back, and where book or brochure signatures are inserted into covers by gluing the

cover on the back and/or sides
3.29
safety distance
minimum distance a protective device is required to be placed from a hazard zone
3.30
sheet-folding machine

apparatus to cut, perforate and/or crease single or multiple folds in single sheets of paper

3.31
single-cycle device

mechanism that ensures that only one cutting cycle occurs for each manual activation or automatic cut

NOTE 1 to entry See anti-repeat device (3.1).
3.32
stored energy

potential energy that may be released without actuation of the machine drive or controls

4 Conformity with this part of ISO 12643

In order to claim conformity with this part of ISO 12643, all equipment manufactured as of 2014-01-01 shall be

in accordance with this third edition of ISO 12643-3 rather than ISO 12643-3:2010.

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oSIST prEN ISO 12643-3:2014
ISO/DIS 12643-3

NOTE Although this third version of ISO 12643-3 cancels and replaces the second edition (ISO 12643-3:2010), a

transition period might be necessary for equipment manufactured prior to 2014-01-01. To meet this need, it is noted that

both versions of ISO 12643-3 can be purchased from ISO and its National Bodies.
5 Guarding of significant hazards
5.1 General

Guarding, consistent with operation of the machine, shall be provided in those areas where it is recognized

that operators are exposed to significant hazards. The guarding requirements of ISO 12643-1 apply. See

Annex A for a list of hazards associated with binding and finishing equipment and systems.

5.2 Interlocks
5.2.1 Exception for machine motion at inching speed

If a machine is operating at inching speed and under conditions defined in ISO 12643-1, motion may continue

when an interlocked guard is opened.
5.2.2 Exception for machine motion at production speed

This exception shall apply only to the specific machines identified in this part of ISO 12643 and does not apply

to all equipment.
[5]

NOTE This exception might not comply with current European standards or the Machinery Directive .

There might be parts of the equipment that cannot be observed or adjusted with the guard closed and need to

be accessed by an authorized person with an interlocked guard open. Under these circumstances, the

following alternative safety measures shall be taken:

a) A mechanical key lock shall be provided adjacent to the access area. There shall be only one key for this

lock. The key for this lock shall be accessible only by an authorized person.
b) The key lock shall operate as a hold-to-run device as follows:
1) inserting the key shall initiate a timer that has a maximum setting of 2 min;

2) turning the key shall override the guard interlock of only that guard, up to the preset time limit;

3) as long as the key is held in the turned position, the guard may be opened with machine motion at

production speed until such time as the timer reaches the preset time limit;

4) when the key is released, it shall automatically return to the neutral position and the guard interlock

shall be automatically reactivated;

5) if the key remains in the lock for a period longer than the preset time limit (which shall not exceed

2 min), the interlock on the guard shall be reactivated automatically and the equipment safety system

shall stop machine motion.

c) The bypassing means shall comply with at least ISO 13849-1, PL d or IEC 62061, SIL 2 .

d) When adjustments are necessary, they shall be performed from outside the hazardous area.

e) A safety label identifying the possible existing hazards with the guard open shall be provided adjacent to

the lock. The label shall clearly indicate that, when the key is in the lock, the adjacent guard is overridden.

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oSIST prEN ISO 12643-3:2014
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If a machine is equipped with this alternative safety measure, information regarding its safe use shall be

contained in the instruction handbook.
5.3 Guarding of hoppers and hopper feeders
5.3.1 Manually loaded hoppers

On machines using manually loaded hoppers, the hazard points on the separating elements of the hopper

feeder shall be safeguarded in accordance with 5.3.4. The exception defined in 5.2.2 may be applied to the

hopper feeder, if necessary.
5.3.2 Guarding of automatically fed hoppers

On automatically fed hoppers where manual intervention during normal operation is not required and the

material used makes access difficult, tunnel-type guards arranged with a safety distance of 550 mm from the

nearest hazard point are considered adequate.

The exception defined in 5.2.2 may be applied to the hopper feeder, if necessary.

5.3.3 Protection of unused hoppers and hopper feeders

For hoppers that are not used and cannot be stopped, blanking boards shall be provided to safeguard the

hazard points at the separating elements.
5.3.4 Separating elements on hopper feeders

The hazard points on separating elements outside the sidelays on feeders shall be safeguarded for every

format size used.

For hazard points within sidelays, residual-pile monitoring shall comply with at least ISO 13849-1, PL b or

IEC 62061, SIL 1.

NOTE This safeguarding can be achieved, for example, by product, by using accordion-type bellows or by the use of

additional guards.
5.4 Guarding on binding and finishing machines
5.4.1 Hand-fed riveting, eyeletting and attaching machines

Hazard points between tools on riveting, eyeletting and attaching machines either shall be prevented by

design or shall be safeguarded.

Means to satisfy this requirement include, but are not limited to, the following:

 observing a maximum distance of 4 mm between the tools in the open position;

 ensuring that the closing force of the movable tool is less than 50 N; a stronger closing force is allowed to

become effective only after a sensing device has confirmed that no part of a human body is located

between the two tools.

NOTE The sensing device function, for example, can be based on the fact that the workpiece and a body part have

different electrical resistances or different thicknesses.

Hazard points are safeguarded if guards are provided in accordance with ISO 13857 or the machine can be

started only by two-hand control.

For machines that are not guarded by a fixed or movable guard, a workpiece support shall be provided, and

two-hand controls meeting the requirements of ISO 12643-1 shall be used. If the workpiece needs to be held

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oSIST prEN ISO 12643-3:2014
ISO/DIS 12643-3

by hand outside the hazard zone, a hold-to-run control shall be provided for starting the machine instead of

the two-hand control.
5.4.2 Hand-fed flat- and saddle-stitching machines

Adjustable guards shall be provided on flat-stitching, saddle-stitching and combination-stitching machines for

operational reasons (see Figure 1 and Figure 2). Instructions that describe the safe adjustment of the guards

in a clear and easily understandable format shall be provided on the machine.

NOTE This marking requirement is satisfied, for example, by providing labels that illustrate the safety distances

required for the various stitching thicknesses by means of sketches and measurements.

On combination-stitching machines in the saddle-stitching mode, the guard for the upper tool shall extend to

the height of the upper edge of the lower tool (upper edge of the saddle) and shall enclose the upper tool to

prevent inadvertent access (see Figure 2).

Guarding may be by either two separate guards or a combined reversible guard. Combined reversible guards

shall be suitable for saddle stitching as well as for flat stitching.
Dimensions in millimetres
Key
1 upper tool
2 guard
Figure 1 — Flat stitcher
Dimensions in millimetres
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