| Patents for B21D 55 - Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass (1,032) |
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| 10/06/2011 | WO2011120990A1 Safety device for a machine in which a first machine part performs a working movement with respect to a second machine part |
| 10/05/2011 | CN201997632U Switching device for safety control of punch |
| 10/05/2011 | CN201997631U Deflector rod type punch safety protection device |
| 10/05/2011 | CN201997630U Safety protection device for punch press |
| 09/28/2011 | CN201988657U 一种冲压机防护安全装置 A press machine guard safety devices |
| 09/28/2011 | CN201988656U 一种使用寿命长的磁性冲床装卸料工具 A long-life magnetic punch loading and unloading tools |
| 09/21/2011 | CN201979725U 一种液压机冲床安全防护装置 A hydraulic machine press safety device |
| 09/21/2011 | CN201979017U 冲床安全显示装置 Punch secure display device |
| 09/14/2011 | CN201970472U 一种管道加工冲床 One kind of pipe processing punch |
| 09/14/2011 | CN102179460A Buffer system of flexible plate punching machine |
| 09/14/2011 | CN102179459A Mechanical safety device for pneumatic hydraulic cylinder driving and stamping equipment |
| 08/24/2011 | CN201940504U Overload protecting mechanism for main transmission of mechanical servo numerical control turret punch press |
| 08/24/2011 | CN101786253B Safety enhancing system of machine tool |
| 08/24/2011 | CN101773961B Full-automatic high-speed multifunctional corrugated pressing machine |
| 08/17/2011 | CN102151766A Punch with safety net at back |
| 08/10/2011 | CN201921950U 冲床安全防护装置 Punch safety devices |
| 08/10/2011 | CN201921949U 防止锻压机床连杆销轴断裂的结构 Forging Machine link pin to prevent breakage of the structure |
| 07/06/2011 | EP2340899A2 Press tool for radial pressing of workpieces and tool with at least two tool sections movable relative to each other |
| 07/06/2011 | CN201889370U Excessive cutting protection device of punch |
| 06/29/2011 | CN201880823U Safe double operating floors for two persons to operate one punch |
| 06/15/2011 | CN201862706U Safe operation system capable of preventing hand from being pressed for bending equipment |
| 06/01/2011 | CN201848491U Protection device for synchronizing mechanism of finishing machine |
| 06/01/2011 | CN201848469U Internal high pressure forming machine |
| 05/25/2011 | CN201841219U Punching machine safety device and punching machine |
| 05/11/2011 | CN201827629U Stamping safety device for mechanical press |
| 05/11/2011 | CN201823843U Anti-eccentricity pressed piston rod connection device of unguided slide block type hydraulic press |
| 05/04/2011 | CN201815604U Personal safety protection device for punch equipment |
| 04/20/2011 | CN201799489U Improved straightening machine |
| 04/13/2011 | CN201791869U Safe bending machine |
| 04/06/2011 | CN201783596U Overload protection device of closed type punching machine |
| 04/06/2011 | CN102000748A Anti-eccentricity pressing piston rod connecting device of no-guiding slider type hydraulic press |
| 03/30/2011 | CN201776372U Anti-misoperation feeding linkage device for progressive dies |
| 03/30/2011 | CN201776355U Hardware stamping composite mould |
| 03/16/2011 | CN101985145A Punch safety device as well as punch and refitting method thereof |
| 03/09/2011 | EP2040862B1 Method and apparatus for detecting unsafe conditions |
| 03/09/2011 | CN201755623U Safety caution protector of hydraulic plate bender |
| 03/03/2011 | US20110048088 Stop mechanism for a bending press |
| 02/22/2011 | US7891223 Transfer press machine |
| 02/16/2011 | CN101972824A Automatic protection device of punching machine |
| 02/09/2011 | CN201735708U Mould anti-reverse device |
| 01/26/2011 | CN101954433A Device and method for preventing a tool from breaking during fine blanking and/or forming a work piece |
| 01/12/2011 | CN201702296U Protecting device of bending machine |
| 01/12/2011 | CN201702295U Punching equipment safe distance control device |
| 01/12/2011 | CN201702294U Mold material inlet safety protector |
| 01/12/2011 | CN101941035A Instantaneous brake equipment of closed punch press |
| 01/05/2011 | CN201693028U Straightening processing equipment of seamless steel pipe |
| 01/05/2011 | CN101934328A Error-feeding preventing linkage device of progressive die |
| 01/05/2011 | CN101618419B Safety device of mini-type punching equipment |
| 01/05/2011 | CN101549366B A pad flatter |
| 12/29/2010 | CN201684863U Press overload protector of punch |
| 12/29/2010 | CN201684828U Pneumatic punch press |
| 12/22/2010 | EP2118555B1 Safety device for a machine |
| 12/08/2010 | EP2258496A1 Device and method for preventing a tool from breaking during fine cutting and/or reforming a work piece |
| 12/08/2010 | CN201664740U Force balancing device for high-speed precision punch press |
| 12/08/2010 | CN201664739U Automatic safety protection device for stamping equipment |
| 11/24/2010 | CN201645248U Machine tool safety enhancement system |
| 11/24/2010 | CN201644603U Conical spiral-necking heterotypic-forge forming machine for pipe |
| 11/24/2010 | CN101890462A Closed punch overload protection device |
| 11/17/2010 | CN101885026A Unbalanced load protection control system for torque shaft bending machine |
| 11/10/2010 | CN101879566A Protection device for use on bender |
| 11/03/2010 | CN201618818U Infrared ray safety protection device for punch |
| 10/28/2010 | US20100269555 Bending press having a loading device and method for operating it |
| 10/20/2010 | CN1714997B Location and identification of a tool in a tool receiving part |
| 10/14/2010 | US20100257909 Method and Apparatus for Reducing Force Needed to Form a Shape from a Sheet Metal |
| 10/14/2010 | US20100257908 Portable Conduit Bending Frame Assembly And Method Of Use Thereof |
| 10/13/2010 | CN201603779U 液压板料折弯机的防护门缓冲装置 Hydraulic plate bending machine protection door cushioning device |
| 10/06/2010 | CN101245891B Safety device of miniature single-machine punch equipment |
| 09/22/2010 | CN201586711U Device for protecting crimping machine |
| 09/15/2010 | CN201579347U Circular arc push button station for punching machine |
| 09/15/2010 | CN101829743A Safe distance control device of punching equipment |
| 09/15/2010 | CN101254516B Bending device |
| 09/01/2010 | CN201566164U Stamping tool protecting mechanism of press |
| 09/01/2010 | CN201565533U Special oil return shock-absorbing device for high-speed punching machine |
| 09/01/2010 | CN201565506U Fully-automatic high-speed multifunctional wave shape pressing machine |
| 09/01/2010 | CN101402113B Bender trunnion shaft overload safeguard |
| 08/31/2010 | US7784318 Turned blank monitor |
| 08/31/2010 | US7784317 Safety system for a bending press and a slatted tool |
| 08/17/2010 | US7775081 Rotary fill member for a die assembly |
| 08/11/2010 | CN201544070U Safe locking device of vertically-moving slide block |
| 08/11/2010 | CN201543690U Protective-door flower-shaped netty pattern unit for hydraulic plate benders |
| 07/28/2010 | CN101786253A Safety enhancing system of machine tool |
| 07/28/2010 | CN101518808B Overload protective device of punch |
| 07/14/2010 | CN101773961A Full-automatic high-speed multifunctional corrugated pressing machine |
| 07/07/2010 | CN101769416A Safety lever of punch |
| 07/07/2010 | CN101767166A Oil-return damping device especially for high-speed punch press |
| 06/23/2010 | CN201511086U High-energy punch clutch exhaust head |
| 06/10/2010 | US20100139349 Automated monitoring for clinching joints |
| 06/09/2010 | CN201500719U High-speed punch |
| 06/09/2010 | CN101722253A Safety protection device of rigid punching machine |
| 06/02/2010 | CN201493411U Safety insurance system of mold storage limiter |
| 05/26/2010 | CN201483780U horizontal punching machine |
| 05/26/2010 | CN201482853U Continuous automatic punching and forming machine |
| 05/26/2010 | CN1768977B Die cushion mechanism, and apparatus and method for controlling the same |
| 05/12/2010 | CN201455139U Balancing slider device for slider-crank mechanism |
| 05/12/2010 | CN201455130U Pipe inverting device of steel pipe tension reducing machine set |
| 05/05/2010 | CN201446185U Molding device of square aluminum ceiling board |
| 04/28/2010 | CN101698216A Protection method and protection device thereof when using punch |
| 04/14/2010 | CN201437145U Photoelectric safety optical grating device for printed wiring board punch press |
| 04/07/2010 | CN201436198U Pressure point of a forcing press |
| 03/17/2010 | CN101673811A Completely automatic device for stretching and shifting lithium battery shell |