JP6059880B2 - Embossing mold manufacturing method and apparatus - Google Patents

Description

  The present invention relates to an embossing mold manufacturing method and apparatus for forming an emboss such as Braille on a sheet material such as cardboard.

  Conventionally, as disclosed in Patent Document 1, a method for manufacturing an embossing mold is a stainless steel plate having a thickness of 3 mm, a vertical dimension of 2450 mm, and a horizontal dimension of 940 mm, for example, as a metal plate of the embossing mold. , And a convex portion of a lattice pattern is formed on the entire metal plate, and the metal plate is press-molded using a large-scale press device having a thickness of several thousand tons.

  In addition, for example, when embossed Braille is formed on a metal plate, as disclosed in Patent Document 2, the surface of the metal plate is etched to form convex portions and concave portions for Braille formation. In addition, as disclosed in Patent Document 3, as a method for forming a metal braille plate, there has been proposed a stamping tool for forming one Braille protrusion on each metal plate using a dedicated stamping die. .

Japanese Patent Laid-Open No. 10-329212 JP-A-9-118990 JP-A-8-174987

  However, in the case of the metal mold manufacturing method disclosed in Patent Document 1, a metal mold for pressing a metal plate is large, a high output device is required for the press apparatus, and an emboss forming mold is formed. The mold itself is also large and costly. Therefore, it cannot be applied to embossing with few lots or embossing with many variations.

  In addition, the method of forming a mold by etching disclosed in Patent Document 2 also involves a complicated mold forming process, expensive mold material, and man-hours and costs. The braille cutting tool for a metal braille plate disclosed in Patent Document 3 cuts a plurality of convex portions constituting an actual braille one character at a time, and the number of stamping steps for forming the braille The braille stamping tool is provided in correspondence with each braille character, and the braille stamping tool is easy to handle. It is extremely bad.

  This invention is made in view of the said background art, and provides the die manufacturing method and apparatus for embossing which can form the die which embosses braille etc. efficiently and cheaply. With the goal.

This invention is an embossing mold manufacturing method for sandwiching a plastically deformable sheet-shaped workpiece between a male mold and a female mold and forming an emboss on the workpiece , Using a male punch that partially plastically deforms the metal plate for mold formation, a predetermined position of the metal plate for metal mold formation is sequentially plastically deformed, and a convex portion for forming the emboss is formed on the metal mold. This is a forming mold manufacturing method in which the male mold is formed by being sequentially provided on a mold forming metal plate . Furthermore, while forming the male mold and using a female punch for forming a hole in the other metal mold forming metal plate, a predetermined position of the other metal mold forming metal plate is sequentially punched, Holes for forming the emboss are sequentially formed in the other metal mold forming metal plate to form the female mold.

  Further, at least a pair of the metal plates for mold formation is provided, and the male punch and the female punch are sequentially moved at the same time, so that the convex portions and the hole portions are formed in the pair of metal plates for mold formation. Separately formed, the male mold and the female mold for forming the emboss are formed simultaneously.

  The emboss is Braille, and each of the metal plates for forming a mold is formed with one projection for braille embossing one by one using the male punch, and the braille embossing is performed using the female punch. One hole to be engraved is formed one by one.

  The present invention also provides an emboss forming mold manufacturing apparatus for forming an emboss by sandwiching a plastically deformable sheet-like workpiece between a male mold and a female mold, wherein the male mold is A male punch that partially plastically deforms a metal plate for forming a mold, a female punch that punches out another metal plate for forming a metal that forms the female mold, and the metal plate for forming a mold A moving device that sequentially changes the relative positions of the male punch and the female punch; and a driving device that drives the male punch and the female punch, and the male punch is driven by the driving device; Protrusions for forming the embossing are provided on the metal plate for forming a mold to form the male mold, and the female punch is driven by the driving device, and the other metal plate for forming the mold A hole for forming the emboss is It is embossed shape mold manufacturing apparatus for forming the female mold by far.

Further, at least a pair of mold forming metal plates is provided, and the pair of mold forming metal plates is positioned at a distance equal to the interval between the male punch and female punch mounting positions. only those have been away.

  The emboss is Braille, and the male punch and the female punch are formed in a convex shape in which a tip portion is thinly formed to a thickness for Braille stamping, and the convex portion for Braille stamping and the Each of the holes is sequentially formed one by one.

Further, the tip of the female punch protrudes slightly longer in the protruding direction than the tip of the male punch, and the die is formed before the male punch by driving the driving device. It is provided so as to be able to contact the metal plate.

  The embossing mold manufacturing method and apparatus of the present invention can manufacture an embossing mold efficiently at low cost, can easily cope with the manufacture of molds with different displays, and does not cost much. It is. In particular, in the manufacture of many types of molds, it can be easily and efficiently handled, and the manufacturing efficiency of braille forming molds and the like can be greatly increased.

It is a perspective view showing the whole Braille forming mold manufacturing device of one embodiment of this invention. It is a perspective view which shows the metal mold | die manufacturing apparatus for braille formation of this embodiment. It is a top view of the metal mold | die manufacturing apparatus for braille formation of this embodiment. It is a front view of the metal mold | die manufacturing apparatus for braille formation of this embodiment. It is an enlarged front view of the press part of the metal mold | die manufacturing apparatus for braille formation of this embodiment. It is an enlarged front view at the time of the press by the press part of the metal mold | die manufacturing apparatus for braille formation of this embodiment. It is an expansion perspective view of the press part of the metal mold | die manufacturing apparatus for braille formation of this embodiment. It is an expansion perspective view of the receiving part of the press part of the metal mold | die manufacturing apparatus for braille formation of this embodiment. It is a partial expansion perspective view of the press part of the metal mold | die manufacturing apparatus for braille formation of this embodiment. They are the perspective view (a) which shows the male metal mold | die of the braille forming metal mold | die manufactured with the braille forming metal mold manufacturing apparatus of this embodiment, and the perspective view (b) which shows a female metal mold | die. It is a longitudinal cross-sectional view which shows the process of stamping Braille using the Braille formation metal mold | die manufactured with the Braille formation metal mold manufacturing apparatus of this embodiment. It is a longitudinal cross-sectional view which shows the process of stamping Braille using the Braille formation metal mold | die manufactured with the Braille formation metal mold | die manufacturing apparatus of this embodiment. It is an expanded view of the packaging box which stamped Braille with the metal mold | die for Braille formation by this embodiment. It is the elements on larger scale which show the press part of other embodiment of the metal mold | die manufacturing apparatus for embossing of this invention.

  Hereinafter, an embossing mold manufacturing apparatus according to an embodiment of the present invention will be described with reference to the drawings. The embossing of this embodiment is Braille. In this embodiment, the Braille forming mold manufacturing apparatus 10 will be described. As shown in FIG. 1, the braille forming mold manufacturing apparatus 10 has a support plate 14 fixed to the upper surface of a rectangular base 12, and a rectangular mounting frame of a press device 32 described later on the support plate 14. 16 is being fixed to the center part. Further, a pair of slide rails 18 are laid on the support plate 14 in parallel with the longitudinal direction thereof. A movable substrate 20 is provided on the pair of slide rails 18, and the movable substrate 20 is movably provided on the slide rail 18 by a plurality of pairs of linear sliders 22 attached to the back surface of the movable substrate 20.

  A pair of mounting plates 23 and 24 are fixed on the movable substrate 20 on both sides in the longitudinal direction. The mounting plates 23 and 24 are braille mold-forming metal plates 31 that become braille-forming dies 30 such as stainless steel, on which braille-forming portions 35 that are braille-forming convex portions and holes are formed by pressing. The mounting plates 23 and 24 are respectively formed in the same shape, and the mounting positions of the braille mold forming metal plate 31 are also fixed to the same positions corresponding to each other. The movable substrate 20 is moved on the slide rail 18 by a ball screw driving device 26 driven by a motor 28 which is a moving device.

  A pressing device 32 is provided on the mounting frame 16 provided at the center of the support plate 14 so as to be positioned above the movable substrate 20. The press device 32 includes a rectangular fixed substrate 34 fixed to the upper part of the mounting frame 16. A pair of slide rails 36 provided in a direction perpendicular to the slide rails 18 are fixed to the lower surface of the fixed substrate 34, and a pair of linear sliders 38 are slidably attached to the slide rails 36. A pressing portion holding plate 40 is fixed to 38 in a suspended state. Between the linear sliders 38, a motor for driving the press portion holding plate 40 along the slide rail 36 and a slider drive device 42 such as a ball screw mechanism are attached, and the press portion holding plate 40 is slidable.

  A pair of slide rails 44 fixed in parallel to the slide rail 18 are fixed to the lower surface of the press portion holding plate 40, and linear sliders 46 are slidably attached to the pair of slide rails 44, respectively. On the slider 46, a press driving unit 50, which is a driving device for a male punch 64a and a female punch 64b described later, is fixed in a suspended state. Between the linear sliders 46, a motor for moving the press driving unit 50 along the slide rail 44 and a slider driving device 48 such as a ball screw mechanism are attached. The press drive unit 50 includes a motor 55 that performs the pressing operation of the press unit 52, a link mechanism (not shown), and the like.

  A press unit 52 is fixed to the lower surface of the press drive unit 50 attached to the linear slider 46 in a suspended state. Four guide cylinders 54 are fixed to the press portion 52 so as to protrude in the vertical direction, and guide posts 56 are slidably inserted into the guide cylinders 54. An upper die attachment member 58 is fixed to the lower end portion of the guide post 56, and the punch attachment member 58 is provided so as to be movable forward and backward with respect to the lower movable substrate 20.

  The punch mounting member 58 is fixed to the tip of the piston 60 that is driven to project and retract by the press driving unit 50, and is located symmetrically on the lower surfaces of both sides of the mounting portion of the piston 60, and inside the guide post 56, A mold processing unit 62 is provided. As shown in FIGS. 5 and 6, the pair of mold processing portions 62 includes a male punch 64 a for forming a male mold 30 a for braille formation and a female punch for forming a female mold 30 b for braille formation. The punch 64b is fixed with its front end height substantially aligned and facing downward. The braille forming mold 30 of this embodiment is for embossing braille on cardboard or the like using both the male mold 30a and the female mold 30b by a processing method described later. In addition, the male punch 64a and the female punch 64b are formed in a cylindrical shape and the tip portion is formed in a convex shape with a thin thickness for braille embossing, and the convex shoulder portion is tapered. Is formed. Furthermore, the leading end positions of the male punch 64a and the female punch 64b are slightly lower than the leading end of the female punch 64b for the reason described later.

  On both sides of the male punch 64a and the female punch 64b of the die processing portion 62, a die pressing shaft 66 is provided so as to be able to protrude downward and downward symmetrically. A mold pressing plate 68 positioned in parallel with the braille forming mold 30 is attached. A coil spring 67 is fitted to the mold pressing shaft 66, and the mold pressing plate 68 is attached to the upper mold mounting member 58 while being biased downward relative to the upper mold mounting member 58 by the coil spring 67. It has been.

  A pair of the mold pressing plates 68 are provided corresponding to each of the male punch 64a and the female punch 64b, and a through hole 68a is formed at the center of each mold pressing plate 68, and the male pressing plate 68 is formed in the through hole 68a. Each of the punch 64a and the female punch 64b is inserted so as to protrude and retract. As shown in FIG. 5, the male punch 64a and the female punch 64b have a male punch 64a within the thickness of the mold pressing plate 68 in a state before the press working with respect to the Braille mold forming metal plate 31. The tip of the female punch 64b is located.

  Below the male punch 64a and the female punch 64b, the mounting plates 23 and 24 provided on the working substrate 20 are alternately arranged. On the mounting plates 23 and 24, the male mold 30a is disposed. The fixing plate 70 to which the female mold 30 b is fixed is detachably fixed by screws 72. The mounting plates 23 and 24 are provided so that the fixing plate 70 can be mounted in the same manner. The fixing plate 70 is regularly formed with through holes 70a so that Braille corresponding to all characters can be formed in accordance with the Braille pitch, and a mounting hole 70b is formed at the insertion position of the screw 72. The through-holes 70a are regularly arranged at a slight interval for each group corresponding to braille characters. The distance between the male punch 64a and the female punch 64b is the distance between the mounting positions in the longitudinal direction of the fixing plate 70 on one mounting plate 23, 24 (distance d in FIG. 7), that is, the length in the longitudinal direction of the fixing plate 70. The male die 30a and the female die 30b are formed so as to be simultaneously formed by the male punch 64a and the female punch 64b.

  In the method of manufacturing the braille forming mold 30 by the braille forming mold manufacturing apparatus 10 of this embodiment, first, the movable substrate 20 is slid, and one of the mounting plates 23 and 24 on the movable substrate 20 is the base 12. The fixing plate 70 and the male and female pairs 30a and 30b of the male and female pairs are fixed with screws 72 at positions where there is no mounting frame 16, respectively. At this time, a plurality of pairs of braille mold forming metal plates 31 are attached in the short direction of the male mold 30a and the female mold 30b so that a plurality of pairs of the male mold 30a and the female mold 30b are formed. The braille mold forming metal plate 31 of the male mold 30a and the female mold 30b is preferably a metal that has high wear resistance and does not generate rust and is easy to process, and is preferably a stainless metal plate.

  Thereafter, the motor 28 is driven, and the movable substrate 20 is moved on the slide rail 18 by the ball screw driving device 26. Then, for example, the male punch 64a and the female punch 64b are set so that the tips of the male punch 64a and the female punch 64b are positioned above the mounting plate 24, and the tips of the male punch 64a and the female punch 64b are positioned on the braille mold forming metal plate 31. It determines with the control apparatus which is not shown in figure so that it may be located in the edge part of a braille formation position. In this positioning, the male punch 64a and the female punch 64b are integrated in the XY axis directions orthogonal to each other on the horizontal plane by the slide rails 36, 44, the linear sliders 38, 46, and the slider driving devices 42, 48. To determine the position at the same time.

  While one of the mounting plates 23 and 24 is positioned below the press device 32 and processing is performed, the other of the mounting plates 23 and 24 is positioned at the end of the base 12 and the next processing is performed. In preparation for this, the attachment work of the braille mold forming metal plate 31 is performed. By repeating this alternately, the work can be performed with good setup.

  After the male punch 64a and the female punch 64b are located at the origin position for forming the braille mold, the press section 52 of the press drive section 50 is driven by a control device (not shown), and the braille mold forming metal plate 31 is formed. In addition, a Braille mold part 35, which is a part for stamping Braille, is press-formed. Further, the slide rails 36 and 44, the linear sliders 38 and 46, and the slider driving devices 42 and 48 are controlled by a control device (not shown), the press driving unit 50 moves in the horizontal direction, and the next braille mold unit 35 is formed. The male punch 64a and the female punch 64b are positioned above the position, and similarly, the press portion 52 of the press drive unit 50 is driven to form the braille die portion 35 on the braille die forming metal plate 31. . This operation is automatically intermittently driven by the control of the control device, and the male punch 64a and the female punch 64b sequentially form the Braille mold portion 35 on the Braille mold forming metal plate 31.

  In this case, the male die 30a and the female die 30b are simultaneously stamped by the male punch 64a and the female punch 64b. As shown in FIG. 5, the processing operation at this time is stopped after the male punch 64a and the female punch 64b are first positioned above the Braille mold forming metal plate 31. Thereafter, as shown in FIG. 6, the piston 55 of the press portion 52 protrudes downward by the motor 55. At this time, due to the protrusion of the piston 60, the punch mounting member 58 moves downward, the die pressing plate 68 of the die processing portion 62 comes into contact with the braille die forming metal plate 31 first, and resists the coil spring 67. Then, the punch mounting member 58 is further lowered. Thereby, the braille mold forming metal plate 31 is reliably positioned and fixed, and the braille mold forming metal plate 31 is not displaced by the press operation of the male punch 64a and the female punch 64b. Further, the mold pressing plate 68 suppresses the bending due to the internal stress generated in the Braille mold forming metal plate 31 to enable accurate processing and suppress the increase of the internal stress.

  When the piston 60 is further lowered, the tip of the female punch 64b, which is attached to the punch attachment member 58 and slightly protrudes in the protruding direction, comes into contact with the braille mold forming metal plate 31 first and penetrates. Then, the tip of the female punch 64 b comes out into the through hole 70 a of the fixing plate 70. When the female punch 64 b penetrates the braille mold forming metal plate 31, the tip of the male punch 64 a starts to contact the surface of the braille mold forming metal plate 31. Then, the piston 60 further descends, and the male punch 64a forms the Braille-forming convex portion 80a, which is the Braille mold portion 35, on the Braille-die-forming metal plate 31, and then the male punch 64a and the female The punch 64b is retracted upward. The height of the convex portion 80a is formed higher than the thickness of the female die 30b.

  Note that the drive of the press drive unit 50 that simultaneously forms the male mold 30a and the female mold 30b is controlled by a control device (not shown), and automatically drives the motors 42, 48, 55, etc. In particular, the convex portions 80a and the holes 80b, which are the braille die portions 35, are pressed. Further, by adjusting the lengths of the male punch 64a and the female punch 64b, a taper surface is formed on the edge of the Braille mold portion 35 of the Braille mold forming metal plate 31 at the convex shoulder portion at the tip. You may make it form simultaneously.

  Next, a Braille stamping method using the Braille forming mold 30 of this embodiment will be described with reference to FIGS. As shown in FIGS. 10 (a) and 10 (b), the braille forming mold 30 has a plurality of convex portions 80a, which are braille mold portions 35 for forming predetermined Braille, on the male mold 30a. The female mold 30b is provided with a hole 80b which is a Braille mold part 35 through which the convex part 80a can be inserted with a gap at a position corresponding to the convex part 80a. Furthermore, attachment holes 82 are formed at both ends of the braille mold forming metal plate 31 corresponding to the attachment holes 70 b of the fixing plate 70. In addition, an elastic body plate 84 such as polyurethane rubber is used on the back surface of the female die 30b of the braille forming die 30 of this embodiment.

  Next, for example, a case where Braille 92 is stamped on a cardboard packaging box 90 shown in FIG. 13 will be described. As shown in FIGS. 11 and 12, the braille 92 is stamped simultaneously with the punching of the box-forming piece 91 by the thick paper blank sheet 94. For punching the box forming piece 91, a punching die 96 is used. The die 96 includes a template 98 having an outer shape larger than that of the box-forming piece 91, and the die 96 is guided by a guide pin (not shown) so as to be movable up and down. On the template 98, a cutting blade 100 such as a Thomson blade is arranged in a contour shape of a box-forming piece 91 to be punched, and a ruled line blade 102 is arranged in the shape of a crease line 93 of the box-forming piece 91. At a predetermined position inside the die 96, the female die 30b of the braille forming die 30 is integrally attached with an elastic plate 84 on the back surface.

  On the support base 104 facing the lower side of the punching die 96, a male die 30a in which a plurality of convex portions 80a respectively corresponding to the hole portions 80b of the female die 30b are formed is disposed via the receiving member 105. At a position where the cutting edge of the cutting blade 100 is opposed, a receiving member 106 of an elastic body similar to the elastic body plate 84 provided on the support base 104 and a metal plate 108 fixed to the surface thereof are provided, and the cutting edge of the ruled line blade 102 is provided. An elastic receiving member 106 is also arranged at the position opposite to each other.

  As shown in FIG. 11, the stamping operation of the braille 92 by the braille forming mold 30 is inserted on the support base 104 with the surface of the blank sheet 94 facing the die 96. Thereafter, as shown in FIG. 12, the die 96 is lowered, and the cutting edge 100 bites into the blank sheet 94 so that the cutting edge of the cutting blade 100 contacts the metal plate 108 of the receiving member 106 with the blank sheet 94 interposed therebetween. The box forming piece 91 is punched out. At this time, the blank sheet 94 is cut while the receiving member 106 is slightly elastically deformed and compressed. At the same time, the cutting edge of the ruled line blade 102 bites into the receiving member 106 with the blank sheet 94 interposed therebetween, and forms a creased line 93 on the blank sheet 96. At the same time, the hole 80b of the female die 30b of the braille forming mold 30 and the convex portion 80a of the male die 30a are fitted to each other with the blank sheet 94 interposed therebetween, so that the blank sheet 94 of the fitting portion is plastic. By deforming, an embossed braille 92 is formed at a predetermined position of the box forming piece 91. Thereafter, the die 96 is raised, and the box-forming piece 91 on which the braille 92 is engraved can be taken out. The box-forming pieces 91 are efficiently punched by punching a plurality of box-forming pieces 91 from a large blank sheet 94.

  According to the braille forming mold manufacturing apparatus 10 of this embodiment, the braille forming mold 30 can be easily processed on the braille mold forming metal plate 31. Moreover, the processing of the braille mold forming metal plate 31 is performed by simultaneously forming the male mold 30a and the female mold 30b, and the positioning is accurately performed. Therefore, it is possible to flexibly cope with the braille forming mold 30 which is produced in a small quantity and in a variety of types.

  The embossing mold manufacturing apparatus of the present invention is not limited to the above-described embodiment, and the embossing is not only Braille but also animals, characters, and other arbitrary patterns formed on paper boxes and sheets. Alternatively, as shown in FIG. 14, the metal plate 110 for forming a mold can be pressed into a pattern such as an animal face. In this case, the processing of the male mold of the metal plate 110 for forming the mold is performed by plastically deforming the metal plate 110 for forming the mold to form the convex mold processing portion 112 in the same manner as the pattern to be embossed. The die portion may be punched into an embossed contour shape, partially punched along the contour, or formed with a punched portion located inside the convex mold processing portion 112. . Also in this case, it is possible to easily and accurately manufacture a mold for forming a more precise and clear emboss compared with the conventional emboss.

  In addition, the moving device for sequentially changing the relative positions of the male die and the female die with respect to the metal plate for die formation uses a driving device such as an air cylinder in addition to a device using a motor and a linear slider. Alternatively, the relative position may be moved by moving the press drive unit or moving the movable substrate on the mold forming metal plate side in the XY axis direction in addition to the press drive unit moving.

DESCRIPTION OF SYMBOLS 10 Braille forming metal mold manufacturing apparatus 18, 36, 44 Slide rail 20 Movable substrate 22, 38, 46 Linear slider 23, 24 Mounting plate 26 Ball screw drive device 28 Motor 30 Braille forming metal mold 30a Male mold 30b Female mold 31 Braille die forming metal plate 32 Press device 35 Braille die portion 40 Press portion holding plate 42, 48 Slider drive device 50 Press drive portion 52 Press portion 58 Punch mounting member 60 Piston 62 Mold processing portion 64a Male punch 64b Female punch 66 Mold holding shaft 67 Coil spring 68 Mold holding plate 70 Fixing plate

Claims (7)

In an embossing mold manufacturing method for forming an emboss on a workpiece by sandwiching a plastically deformable sheet-shaped workpiece between a male mold and a female mold,
A mold for forming the metal plate using a male punch that partially plastic deformation, a predetermined position of the mold for forming the metal plate by sequentially plastically deformed, the protrusions for forming the embossing, the gold While forming on the metal plate for mold formation in order to form the male mold ,
Using a female punch for forming a hole in another mold forming metal plate, a predetermined position of the other metal plate for forming a mold is sequentially punched out, and the hole for forming the emboss is An embossing mold manufacturing method, wherein the female mold is formed by sequentially forming another metal mold forming metal plate .   At least a pair of the metal plate for metal mold formation is provided, and the male punch and the female punch are sequentially moved at the same time, and the convex portion and the hole are separately formed on the pair of metal mold metal plate. The embossing die manufacturing method according to claim 1, wherein the male die and the female die for forming and forming the embossing are formed simultaneously. The emboss is Braille, and each of the metal plates for forming a mold is formed with one projection for braille embossing one by one using the male punch, and the braille embossing is performed using the female punch. The embossing die manufacturing method according to claim 1 or 2 , wherein the hole portions for engraving are formed one by one.
In an embossing mold manufacturing apparatus for forming an emboss by sandwiching a plastically deformable sheet-like workpiece between a male mold and a female mold,
A male punch for partially plastically deforming a metal plate for forming a metal mold constituting the male mold, a female punch for punching out another metal plate for forming a metal mold constituting the female mold, and the mold An embossing type comprising: a moving device that sequentially changes a relative position of the male punch and the female punch with respect to the forming metal plate; and a driving device that drives the male punch and the female punch. Mold manufacturing equipment. At least provided with a mounting plate for fixing the pair of molds for forming the metal plate, the position of the pair of the mold for forming the metal plate by a distance equal to the spacing of the mounting position of the female punch and the male punch away The embossing die manufacturing apparatus according to claim 4. The embossing is Braille, the female punch and the male punch is embossed according to claim 4, wherein the tip portion is being formed in a narrow formed convex-shape thickness for braille embossing Mold production equipment for forming. The tip of the female punch protrudes slightly longer in the protruding direction than the tip of the male punch, and the die for forming the metal before the male punch is driven by the driving device. The embossing die manufacturing apparatus according to claim 6, which is provided so as to be able to contact the plate.

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