JP5898110B2 - Blade holder and pipe punch using the blade holder - Google Patents

Description

  The present invention relates to a blade holder to which a plurality of pipe-like perforating blades for making a plurality of holes in a sheet are mounted, and a pipe for lowering a pipe-shaped perforating blade mounted on a punching device body via a blade holder to open a hole in a sheet It relates to the expression punch.

  In the case of a pipe punch that lowers the pipe-shaped drilling blade attached to the punch device body via a blade holder and opens a hole in the paper, the punched blade passes through the pipe-shaped punching blade and rises, so the drilling blade is raised and lowered. A scrap accumulation box is provided on the punch device main body side (see, for example, Patent Documents 1 and 2).

Japanese Patent Laid-Open No. 06-190794 JP 2000-117697 A

  However, in the pipe-type punches described in Patent Documents 1 and 2 described above, since a plurality of pipe-shaped perforating blades are mounted at a predetermined pitch such as 80 mm, for example, when trying to open a plurality of holes at other pitches There is a problem that another pipe type punch equipped with a plurality of pipe-shaped perforating blades at other pitches is required.

  For example, it is usually used to open two holes with a predetermined pitch of 80 mm or the like in order to bind a document printed on general A4 paper or the like into a two-hole file (holder). On the other hand, there are cases where two holes are formed with a hole pitch of 63 mm or the like.

  Therefore, the present invention has been made paying attention to such problems, and provides a blade holder capable of opening holes with different hole pitches by one unit, and a pipe punch using the blade holder. Objective.

In order to solve the above-mentioned problem, a blade holder according to the present invention is a blade holder that is attached to a pipe-type punch and is equipped with a plurality of pipe-shaped perforating blades that make a plurality of holes in a paper, and includes a plurality of pipe-shaped perforations. A piercing blade insertion portion is provided so that the blade interval can be changed, and a base portion having an outer periphery whose diameter is larger than the outer periphery of each of the pipe-shaped piercing blades is provided at the base of the plurality of pipe-shaped piercing blades. In addition, a blade tray having a main body portion with a fixed short convex portion protruding outward is provided on the outer periphery of the base portion, and the base portion of each pipe-shaped perforated blade is provided in the perforated blade insertion portion. When the blade tray is inserted and rotated, the short convex portion of the blade tray hits the back surface of the blade-side substrate of the blade holder, so that each pipe-shaped punching blade is replaced with the punching blade insertion portion of the blade holder. The blade holder is configured by superimposing a plurality of substrates, and the blade-side substrate closest to the cutting edge of the pipe-shaped drilling blade among the plurality of substrates has a plurality of holes with different hole pitches. Each of the plurality of pipe-shaped perforated blades is provided with a blade-side perforated blade insertion hole configured to insert the pipe-shaped perforated blade base, the main body of the blade tray, and the short convex portion. When the main body of the tray is rotated, the short convex portion hits the back surface of the cutting edge side substrate and does not come out to the cutting edge side, and the pipe-shaped drilling is farthest from the cutting edge of the pipe-shaped drilling blade among the plurality of substrates. In the waste accumulation box side substrate close to the waste accumulation box that collects the paper removal waste that protrudes from the base side through the blade, the diameter of the punch is larger than the inner diameter of the pipe-shaped perforation blade at different pitches. And an intermediate substrate between the cutting edge side substrate and the waste stacking box side substrate, a main body portion and a short convex portion of a blade tray of a plurality of pipe-shaped perforated blades are inserted, and An intermediate drilling blade insertion hole having an inner diameter that can be rotated is provided, and the blade-side drilling blade insertion hole of the blade-tip substrate and the intermediate drilling-blade insertion hole of the intermediate substrate constitute a punching blade insertion portion of the blade holder. It is characterized by that.
Here, when the blade tray inserted through the perforated blade insertion hole of the blade tip side substrate rotates, the short convex portion comes into contact with the intermediate substrate of the blade holder, and the blade tray rotates. It is preferable that an anti-rotation portion that prevents excessive overshooting is provided .
Also, the pipe punch according to the present invention includes a plurality of the above-mentioned blade holder and a plurality of paper punches placed on the receiving table by the blade tips of the plurality of pipe-shaped perforated blades mounted on the blade holder. A punching device main body for punching holes, and a waste collecting box for collecting paper scraps that protrude from the root side through a plurality of pipe-shaped perforating blades.
Here, the blade holder is fixed to the waste accumulation box with a screw, and the blade holder and the waste accumulation box are preferably integrated and detachably mounted from the punch device main body.

In the blade holder according to the present invention and the pipe punch using the blade holder, a drilling blade insertion portion having a different hole pitch is provided so that the hole pitch (interval) of the pipe-shaped drilling blade can be changed and attached to the blade holder. Therefore, it is possible to make holes with different hole pitches by one unit.
In particular, a piercing blade insertion portion is provided so that the intervals between the plurality of pipe-shaped piercing blades can be changed, and an outer periphery having a diameter larger than the outer periphery of each of the pipe-shaped piercing blades is provided at the base of the plurality of pipe-shaped piercing blades. The base has a blade tray having a main body with a fixed short projection protruding outward on the outer periphery of the base. When the base of the punching blade and the blade tray are inserted and rotated, the short convex portion of the blade tray hits the back surface of the blade-side substrate of the blade holder, so that each pipe-shaped punching blade can be replaced with the punching blade insertion portion of the blade holder. Can be fixed.
Further, the blade holder is configured by stacking a plurality of substrates, and a plurality of pipe-shaped drilling blade bases with different hole pitches are provided on a blade-side substrate closest to the blade edge of the pipe-shaped drilling blade among the plurality of substrates. And the blade tray main body and the short convex portion are inserted into the blade edge side perforated blade insertion holes, respectively, and when the main body of each of the plurality of pipe-shaped perforated blades is rotated, the short convex The part touches the back of the cutting edge side substrate and is not pulled out to the cutting edge side. Of the plurality of substrates, the paper farthest from the cutting edge of the pipe-shaped drilling blade, passes through the pipe-shaped drilling blade, and removes paper that protrudes from the root side. The waste accumulation box side substrate close to the waste accumulation box for collecting waste is provided with punched waste outlet holes having a diameter larger than the inner diameter of the pipe-shaped perforation blades at different pitches. Between The intermediate substrate is provided with an intermediate drilling blade insertion hole having an inner diameter so that the main body portion and the short convex portion of a plurality of pipe-shaped drilling blades can be inserted into the intermediate tray and can be rotated. Since the piercing blade insertion hole and the intermediate piercing blade insertion hole of the intermediate substrate constitute the piercing blade insertion portion of the blade holder, each pipe-shaped piercing blade can be interchangeably fixed to the piercing blade insertion portion of the blade holder.

(A)-(c) It is the front view, bottom view, and side view of the blade holder of embodiment, respectively. (A)-(c) It is the front view, bottom view, and side view of the 1st board | substrate (blade edge side board | substrate) which respectively comprise the blade holder of embodiment. (A), (b) is the front view and bottom view of the 2nd board | substrate (intermediate board | substrate) which respectively comprise the blade holder of embodiment. (A), (b) is the front view and bottom view of the 3rd board | substrate (intermediate board | substrate) which respectively comprise the blade holder of embodiment. (A), (b) is the front view and bottom view of the 4th board | substrate (cass collection box side board | substrate) which respectively comprise the blade holder of embodiment. It is a figure which shows the state which mounted | wore the pipe-shaped perforated blade with the blade tray. (A)-(d) is the top view of a blade tray, a front view, a right view, and sectional drawing, respectively. (A)-(d) is a figure which shows the procedure at the time of switching from the 1st hole pitch 80mm to the 2nd pitch 63mm, respectively. (A), (b) is the expanded bottom view and expanded sectional view which expand and show the attachment state of the drilling blade insertion part of a blade holder and a pipe-shaped drilling blade in Fig.8 (a), respectively. (A), (b) is the front view and top view which show the state which set the blade holder which attached the pipe-shaped perforated blade through the blade tray to the dregs accumulation box, respectively. It is a side view which shows the state which set the blade holder which attached the pipe-shaped perforated blade via the blade tray to the waste accumulation box. (A), (b) is the top view and side view of the pipe type punch of this embodiment which respectively equipped with the blade holder, the pipe-shaped perforation blade, the blade tray, and the waste accumulation box. (A), (b) is a figure which shows the example of a structure of the raising / lowering mechanism in a pipe type punch, and the state of the top dead center (highest point) and the bottom dead center (lowest point) of the raising / lowering state, respectively.

  Hereinafter, embodiments of a blade holder 10 according to the present invention and a pipe punch 1 using the blade holder 10 will be described in detail with reference to the accompanying drawings.

<Configuration of blade holder 10>
First, the blade holder 10 of the embodiment will be described. As shown in FIGS. 10 and 11, which will be described later, the blade holder 10 of the present embodiment is integrally formed by fixing the residue collection box 40 by first fixing screws 70, 70 and the like, as shown in FIGS. It is attached to the pipe type punch 1 as shown.

  The blade holder 10 is mounted with the base portions of a plurality of pipe-shaped perforating blades 20 and 20 that open a plurality of holes in a sheet, and a plurality of pipe-shaped perforating blades as shown in FIGS. Gutter-shaped perforated blade insertion portions 10a and 10a are provided so that the holes can be mounted with different hole pitches. 1A shows a state in which the pipe-shaped drilling blades 20 and 20 are not attached to the blade holder 10, while FIGS. 1B and 1C show the pipe-shaped drilling blades 20 and 20 in the blade holder 10. FIG. It shows the state of wearing.

  Each of the drilling blade insertion portions 10a and 10a is continuously provided with two circles according to the diameter (outer diameter) of the second base portion 20c of the pipe-shaped drilling blades 20 and 20 so as to correspond to two different hole pitches. It has a so-called bowl shape. Here, in the blade holder 10, for example, a predetermined first pitch of 80 mm for binding a document printed on normal A4 paper or the like to a two-hole file (holder), and a post-written postcard smaller than A4 paper, etc. It is assumed that a second pitch of 63 mm, for example, for drilling two holes is drilled.

  For this reason, the pair of bowl-shaped perforated blade insertion portions 10a, 10a provided in the blade holder 10 at a predetermined interval are continuous with the first pitch hole portions 10a1, 10a1, and the second pitch hole portions 10a2, 10a2, respectively. Is provided.

  That is, as shown in FIG. 1A, the distance between the centers of the first pitch holes 10a1 and 10a1 is the first pitch of 80 mm, and the distance between the centers of the second pitch holes 10a2 and 10a2 is 63 mm. It becomes the second pitch. In FIGS. 1B and 1C, the pipe-shaped drilling blades 20 and 20 are mounted in the first pitch hole portions 10a1 and 10a1 of the pipe-shaped drilling blades 20 and 20 of the blade holder 10, respectively. A state in which holes of 1 pitch are formed is shown.

  Further, only the narrower narrow convex portion 30c having the narrower width among the short convex portions 30c and 30d of the blade trays 30 and 30 can pass through both sides of the perforated blade insertion portions 10a and 10a of the blade holder 10, respectively. Outer recesses 11a3 and 11a3 having a width and inner recesses 11a4 and 11a4 are provided. That is, the wide short convex part 30d having a larger width among the short convex parts 30c and 30d cannot pass through the outer concave parts 11a3 and 11a3 and the inner concave parts 11a4 and 11a4. The short convex portions 30c and 30d, that is, the narrow short convex portion 30c and the wide short convex portion 30d are provided with inclined surfaces by chamfering the corners on the insertion side, and the drilling blade insertion portion of the blade holder 10 is provided. 10a and 10a are formed so as to be easily inserted.

  The blade holder 10 includes four screw holes 10b so that the first substrate 11 to the fourth substrate 14 shown in FIGS. 2 to 5 are integrated with the bottom accumulation box 40 by communicating with the bottom surface of the waste accumulation box 40. , 10b (see FIG. 1), first fixing screws 70, 70 (see FIG. 10, FIG. 11, etc.) are inserted and fixed.

  Here, the first substrate 11 corresponds to the cutting edge side substrate of the present invention that is closest to the cutting edges of the pipe-shaped drilling blades 20 and 20 among the four substrates (the first substrate 11 to the fourth substrate 14). Further, the fourth substrate 14 is the farthest from the cutting edge of the pipe-shaped drilling blades 20, 20 among the four substrates (first substrate 11 to fourth substrate 14) and passes through the pipe-shaped drilling blades 20, 20 to the root side. This corresponds to the waste accumulation box side substrate of the present invention that is close to the waste accumulation box 40 that collects the waste of paper ejected from the waste. The second substrate 12 and the third substrate 13 between the first substrate 11 and the fourth substrate 14 correspond to the intermediate substrate of the present invention.

  The first substrate 11 which is the blade edge side substrate of the present invention is composed of a substrate bent into an L shape as shown in FIGS. 2 (a) to 2 (c), and is formed at the base of the drilling blade insertion portions 10a and 10a. Cutting edge side drilling blade insertion holes 11a and 11a having an inner diameter corresponding to the outer diameter of the blade trays 30 and 30 to be mounted are formed. In addition, the narrow and narrow convex portions 30c and 30c of the blade trays 30 and 30 are inserted into the left and right sides of the blade-side perforated blade insertion holes 11a and 11a, respectively, and the wide and short convex portions 30d and 30d are outside the width that cannot be inserted. Recesses 11a3 and 11a3 and inner recesses 11a4 and 11a4 are formed. The outer recesses 11a3 and 11a3 and the inner recesses 11a4 and 11a4 constitute the outer recesses 10a3 and 10a3 and the inner recesses 10a4 and 10a4 of the drilling blade insertion portions 10a and 10a.

  In addition, screw holes 11b1 and 11b1 through which first fixing screws 70 and 70 (see FIG. 10 and FIG. 11 and the like) for integrally fixing the blade holder 10 and the waste accumulation box 40 to the first substrate 11 are passed. Is provided.

  Further, the flange portion 11c bent into an L-shape has a second fixing screw for coupling with a guide plate 57 (see FIGS. 12 and 13) of the pipe punch 1 (to be described later) and the residue collecting box 40 to be moved up and down. Holes 11c1 and 11c1 into which 80 and 80 are inserted are provided.

  As shown in FIGS. 3 (a) and 3 (b), the second substrate 12 is formed of a flat substrate, and intermediate drilling blade insertion holes 12a1, 12a1 corresponding to the drilling blade insertion portions 10a, 10a are formed. In addition, there are provided screw holes 12b1 and 12b1 through which first fixing screws 70 and 70 (see FIG. 10, FIG. 11, etc.) for integrally fixing the blade holder 10 and the residue collection box 40 are passed.

  Here, in the intermediate drilling blade insertion holes 12a1 and 12a1 of the second substrate 12, which is the intermediate substrate of the present invention, as shown in FIGS. 3 (a) and 3 (b), the cutting edge side drilling blade of the first substrate 11 is provided. When the long convex portions 30b and 30b and the short convex portions 30c and 30d (described later) of the blade trays 30 and 30 inserted through the insertion holes are rotated by 90 degrees, the wide short convex portions 30d and 30d come into contact with each other. Anti-rotation portions 12a2 and 12a2 are provided to prevent the blade trays 30 and 30 from rotating too much.

Therefore, when the blade trays 30 and 30 are respectively rotated by 90 degrees, the wide and short convex portions 30d and 30d provided on the outer periphery of the main body portion 30a of the blade trays 30 and 30 respectively prevent rotation of the second substrate 12 of the blade holder 10. When the blade trays 30 and 30 are inserted into the intermediate perforated blade insertion holes 12a and 12a and rotated to contact the portions 12a2 and 12a2 , the blade tray 30 is attached to the blade holder 10 because the blade tray 10 rotates only around 90 degrees. , 30 can securely fix the pipe-shaped perforating blades 20, 20.

  The 3rd board | substrate 13 is comprised from the flat board | substrate as shown to Fig.4 (a), (b), The 3rd perforation blade insertion part 13a1, 13a1 corresponding to the perforation blade insertion part 10a, 10a is formed. In addition, holes 13b1 and 13b1 are provided for passing through first fixing screws 70 and 70 (see FIGS. 10 and 11, etc.) for fixing the blade holder 10 and the waste accumulation box 40 together. .

  Here, the second base portion 20c (see FIG. 6) of the plurality of pipe-shaped perforating blades 20 and 20 is inserted into the third substrate 13 which is the intermediate substrate of the present invention, and the inner diameter is such that it can rotate. Shaped third drilling blade insertion portions 13a1 and 13a1 are provided.

  As shown in FIGS. 5 (a) and 5 (b), the fourth substrate 14 is composed of a flat substrate, and the squirting holes 14a1, 14a1, 14a2, 14a2 corresponding to the drilling blade insertion portions 10a, 10a. Are formed, and holes 14b1 and 14b1 for passing through first fixing screws 70 and 70 (see FIG. 10 and FIG. 11, etc.) for integrally fixing the blade holder 10 and the waste accumulation box 40 are provided. ing.

  Here, the residue ejecting holes 14 a 1, 14 a 1, 14 a 2, and 14 a 2 collect the removed residue that has passed through the pipe-like perforating blades 20, 20 even though the plurality of pipe-like perforating blades 20, 20 are not inserted. In order to discharge to the box 40, the inner diameter of the pipe-shaped perforating blades 20, 20 is larger than the inner diameter. Therefore, the interval between the squirting holes 14a1 and 14a1 is the first hole pitch 80 mm, while the spacing between the squirting holes 14a2 and 14a2 is the second hole pitch 63 mm.

  As described above, the blade holder 10 is configured by simply bonding four metal substrates (the first substrate 11 to the fourth substrate 14) and bonding them with the first fixing screws 70 and 70. The holder 10 can be configured. In the present invention, the blade holder 10 may be composed of four substrates (the first substrate 11 to the fourth substrate 14), and may be formed by bonding three substrates or five or more substrates. Alternatively, a single metal member may be cut out to provide the drilling blade insertion portions 10a and 10a having the first pitch hole portions 10a1 and 10a1 and the second pitch hole portions 10a2 and 10a2 as described above. Anyway.

<Configuration of pipe-shaped perforating blade 20 and blade tray 30>
Next, the configuration of the pipe-shaped perforating blade 20 and the blade tray 30 will be described.
FIG. 6 is a view showing a state in which the blade tray 30 is attached to the pipe-shaped perforated blade 20. 7A to 7D are a plan view, a front view, a right side view, and a sectional view of the blade tray 30, respectively.

  As shown in FIG. 6, the pipe-shaped drilling blade 20 has a pipe-shaped drilling blade 20 a that is hollow, though not shown, and through which the residue passes, and has an outer diameter larger than the outer diameter of the drilling blade 20 a at the root. And a second base portion 20c having an outer diameter larger than the outer diameter of the first base portion 20b.

  Then, as shown in FIG. 6B, the blade tray 30 is mounted from the cutting edge of the pipe-shaped perforated blade 20, and the blade tray 30 is slid to the first base portion 20b and the second base portion 20c.

  As shown in FIGS. 7A to 7D, the blade tray 30 has a pair of long convex portions 30 b and 30 b on the outer peripheral surface of the cylindrical main body portion 30 a, and the lower surface of the first substrate of the blade holder 10. 11 is provided with a pair of short convex portions 30c and 30d that are in contact with the upper surface, that is, a narrow short convex portion 30c and a wide short convex portion 30d.

  As shown in FIG. 7D, the main body 30a has a first through hole 30a1 having an inner diameter corresponding to the outer diameter of the first base 20b of the pipe-shaped perforated blade 20, and an outer diameter of the second base 20c. And a second base hole 20a and a second base part 20c of the pipe-shaped drilling blade 20 are inserted or fitted into the pipe-like shape as shown in FIGS. 6 (a) and 6 (b). Mount on the drilling blade 20.

  8 (a) to 8 (d) show that the blade holder 10 having the above-described configuration uses the pipe-shaped perforated blades 20 and 20 and the blade trays 30 and 30 from the first hole pitch 80 mm to the second. It is a figure which shows an example switched and mounted | worn with pitch 63mm. FIGS. 9A and 9B are an enlarged bottom view and an enlarged cross-sectional view, respectively, showing an enlarged mounting state of the drilling blade insertion portion and the pipe-shaped drilling blade of the blade holder 10 in FIG. 8A. .

  First, FIG. 8A shows that the blade trays 30, 30 are attached to the pipe-shaped perforating blades 20, 20, respectively, and the blade trays 30, 30 are respectively connected to the first pitch of the perforating blade insertion portions 10 a, 10 a of the blade holder 10. The state which inserted in the hole parts 10a1 and 10a1 and set the space | interval between the centers of the piercing blade insertion part 10a and 10a to the 1st pitch of 80 mm is shown.

  In this state, as shown in FIG. 7, the blade trays 30 and 30 are provided with a pair of long convex portions 30b and 30b and a pair of short convex portions 30c and 30d orthogonal to each other on the outer peripheral surface of the main body 30a. In the mounted state shown in FIGS. 8A and 8D, the pair of short convex portions 30c and 30d are formed on the first substrate 11 of the blade holder 10 as shown in FIGS. 9A and 9B. The pipe-shaped perforating blades 20 and 20 can be easily fixed so as not to fall.

  When the hole pitch is switched from the first hole pitch of 80 mm to the second hole pitch of 63 mm, the blade trays 30 and 30 are first rotated by 90 degrees as shown in FIG.

  Then, a pair of short convex parts 30c and 30d of the blade trays 30 and 30 are positioned in the second pitch hole parts 10a2 and 10a2 and the outer concave parts 10a3 and 10a3 of the drilling blade insertion parts 10a and 10a of the blade holder 10, respectively. . Therefore, since the pair of short convex portions 30 c and 30 d shift to a state where they do not hit the back surface of the first substrate 11 of the blade holder 10, the pipe-shaped perforated blades 20 and 20 can be easily removed from the blade holder 10.

  Next, in order to set the interval between the pipe-shaped perforating blades 20 and 20 from the first hole pitch 80 mm to the second hole pitch 63 mm, as shown in FIG. 8 (c), a pair of short convex portions 30 c of the blade trays 30 and 30. , 30d are positioned at the first pitch holes 10a1, 10a1 and the inner recesses 10a4, 10a4 of the drilling blade insertion portions 10a, 10a of the blade holder 10, respectively, and the blade trays 30, 30 and the pipe-shaped drilling blades 20, 20 Is inserted into the second pitch holes 10a2 and 10a2 of the blade holder 10, and then the blade trays 30 and 30 are rotated 90 degrees in the direction of the arrow as shown in FIG.

  Then, the blade trays 30 and 30 are rotated by 90 degrees while being inserted into the second pitch hole portions 10a2 and 10a2 of the blade holder 10, and the pair of short convex portions 30c and 30d are the first substrate 11 of the blade holder 10. Therefore, the pipe-shaped perforating blades 20 and 20 can be securely fixed so that the blade holder 10 does not fall into the second pitch holes 10a2 and 10a2 of the blade holder 10.

  Contrary to the above, the hole pitch is changed from 63 mm of the second hole pitch to the first hole pitch by the procedure of FIG. 8D → FIG. 8C → FIG. 8B → FIG. 8A. It can be switched to 80 mm.

  Therefore, according to the blade holder 10 of the present embodiment, the hole pitch that is the distance between the two pipe-shaped perforating blades 20 and 20 is changed to the first hole pitch 80 mm and the second pitch 63 mm. Since the scissors-shaped perforation blade insertion portions 10a and 10a having different hole pitches are provided, holes with different hole pitches can be formed by one unit.

  In particular, in this blade holder 10, blade trays 30, 30 having outer peripheries having diameters larger than the outer peripheries of the pipe-shaped perforating blades 20, 20 are provided on the second base portions 20 c of the pipe-shaped perforating blades 20, 20, respectively. Since the long convex portions 30b and 30b and the short convex portions 30c and 30d projecting outward are provided on the outer periphery of the blade trays 30 and 30, the blade trays 30 and 30 and the pipe-shaped perforated blades 20 and 20 are provided. Is inserted into the first pitch holes 10a1 and 10a1 or the second pitch holes 10a2 and 10a2 of the blade holder 10 and rotated by 90 degrees, the pipe-like drilling can be easily performed at the first pitch of 80 mm or the second pitch of 63 mm. Blades 20 and 20 can be mounted.

  The blade holder 10 is configured by superimposing a plurality of metal substrates (first substrates 11 to 14), and is the most pipe-shaped perforated among the plurality of metal substrates (first substrates 11 to 14). Shapes such that the blade trays 30 and 30 and the narrow and short convex portions 30c of the plurality of pipe-shaped perforated blades 20 and 20 are inserted at different hole pitches on the left and right sides of the first substrate 11 close to the blade tips of the blades 20 and 20. The blade tip side drilling blade insertion holes 11a, 11a are respectively provided, and when the blade trays 30, 30 of each of the plurality of pipe-shaped drilling blades 20, 20 are rotated, a pair of short convex portions 30c, 30d are connected to the blade holder. Since the blade trays 30, 30 and the pipe-shaped drilling blades 20, 20 are mounted so as not to come out of the blade holder 10, the blade trays 30, 30 and the pipe-shaped drilling blades 20, 20 hit the back surface of the first substrate 11. It can be easily attached to the first pitch hole 10a1,10a1 or the second pitch hole 10a2,10a2 of the blade holder 10.

<State in which the blade holder 10 is set in the waste accumulation box 40>
Next, a state where the blade holder 10 is set in the waste accumulation box 40 will be described.
10 (a), (b) and FIG. 11 are front views showing a state in which the blade holder 10 to which the pipe-shaped perforated blades 20 and 20 are attached via the blade trays 30 and 30 is set in the waste accumulation box 40, respectively. It is a top view and a right side view.

  As shown in FIGS. 10 (a), 10 (b), and 11, the pipe-shaped perforated blades 20 and 20 are respectively passed through the blade trays 30 and 30 to the blade holder 10 at a first pitch of 80 mm or a second pitch of 63 mm. The blade holder 10 is fixed to the residue collection box 40. That is, the waste accumulation box 40 and the blade holder 10 are fixed integrally.

  The debris collection box 40 accumulates punched debris discharged through the pipe-shaped perforating blades 20a and 20a (see FIG. 6) of the pipe-shaped perforating blades 20 and 20, and can be opened and closed at the upper part thereof. A waste accumulation box lid 41 is provided. For this reason, when some waste remains in the waste accumulation box 40, the residue collection box lid 41 is removed from the pipe punch 1 while the blade holder 10, the pipe-shaped perforating blades 20 and 20, and the blade trays 30 and 30 are fixed. You can throw away the waste collected in trash.

<Configuration of Pipe Punch 1 of this Embodiment>
Next, the configuration and effects of the pipe punch 1 of this embodiment equipped with the blade holder 10 and the pipe-shaped perforated blades 20 and 20, the blade trays 30 and 30, and the waste accumulation box lid 41 configured as described above. A detailed description will be given with reference to the accompanying drawings.

  12 (a) and 12 (b) are plan views of the pipe punch 1 of the present embodiment equipped with the blade holder 10, the pipe-shaped perforated blades 20 and 20, the blade trays 30 and 30, the waste accumulation box 40, and the like, It is a side view. FIGS. 13 (a) and 13 (b) are diagrams showing a configuration example of an elevating mechanism in the pipe punch 1, and states of the top dead center (uppermost point) and the lower dead center (lowest point) in the elevating state. It is.

  As shown in FIGS. 12A and 12B, the pipe punch 1 according to this embodiment includes a punch device main body 50 and a punch table 60 having gauges 61 and 61 that can slide according to the size of the paper. Has been.

  The punch device main body 50 includes an elevating motor 51 for elevating and lowering the pipe-shaped perforating blades 20, 20, the driving pulley 52 mounted on the rotating shaft of the elevating motor 51, and a rotational force from the driving pulley 52 to the driven pulley 54. A transmission belt 53 for transmission and a lifting screw rod 55 which is fixed to the center of the driven pulley 54 and has a thread for lifting up and down formed on its outer periphery, and a female screw hole 56a in the lifting screw rod 55. A drive bar 56 that is screwed up and down (moves up and down) according to the screw rod 55 for raising and lowering, and a guide plate 57 fixed to the drive bar 56 are provided.

  Then, the pipe-shaped perforated blades 20 and 20 fixed to the blade holder 10 via the blade trays 30 and 30 and the waste accumulation box 40 are fixed to the guide plate 57.

  Therefore, by rotating the elevating motor 51, as shown in FIG. 13A, the guide plate 57, the blade holder 10, the pipe-shaped perforating blades 20 and 20, and the waste accumulation box 40 are brought to the top dead center (the highest point). On the other hand, as shown in FIG. 13 (b), the guide plate 57, the blade holder 10, the pipe-shaped perforating blades 20, 20, the waste accumulation box 40, etc. are lowered to the bottom dead center (lowest point) The sheet placed on the punch table 60 can be perforated.

  Therefore, since the pipe type punch 1 of this embodiment has the blade holder 10 having the first pitch holes 10a1 and 10a1 of 80 mm and the second pitch holes 10a2 and 10a2 of 63 mm, the pipe holder 1 has two pipes. Since the hole pitches of the perforated blades 20 and 20 are changed to the first hole pitch 80 mm and the second pitch 63 mm so as to be mounted with the bowl-shaped perforated blade insertion portions 10 a and 10 a having different hole pitches, It is possible to drill holes with different hole pitches with one unit.

  Moreover, in the pipe type punch 1 of the said embodiment, the pipe-shaped punching blades 20 and 20 provided in the blade holder 10 are configured in a bowl shape so that the first hole pitch can be set to 80 mm and the second hole pitch to 63 mm. However, the present invention is not limited to this, and the different hole pitch may be other than 80 mm of the first hole pitch and 63 mm of the second hole pitch, and the pipe-shaped drilling blade is formed so that three or more hole pitches can be set. Alternatively, the shape of the pipe-shaped perforated blade is not limited to the bowl shape, and the holes of the outer diameter of the blade tray 30 may be provided continuously in parallel or connected in a spaced manner. . In short, it is only necessary that the blade holder 10 be provided with a drilling blade insertion portion that can be set by changing the hole pitch so that the hole pitch of the pipe-shaped drilling blades 20 and 20 can be changed.

  Moreover, in the pipe type punch 1 of the said embodiment, although the electric pipe type punch 1 which raises / lowers the pipe-shaped punching blades 20 and 20 with rotational force, such as a motor (not shown), was demonstrated to an example, this invention is demonstrated. However, the present invention is not limited to this, and as long as the paper is punched by the pipe-shaped punching blades 20, 20, the present invention can also be applied to a manual pipe punch that the user manually pushes the handle.

DESCRIPTION OF SYMBOLS 1 Pipe type punch 10 Blade holder 10a, 10a Drilling blade insertion part 10a1, 10a1 1st pitch hole part 10a2, 10a2 2nd pitch hole part 10b, 10b Screw hole 11 1st board | substrate (blade edge side board | substrate)
12 Second substrate (intermediate substrate)
12a1, 12a1 Intermediate drilling blade insertion hole 12a2, 12a2 Anti- rotation part 13 Third substrate (intermediate substrate)
13a1, 13a1 Third drilling blade insertion portion 14 Fourth substrate (cass stacking box side substrate)
14 a 1, 14 a 1, 14 a 2, 14 a 2 Waste outlet hole 20, 20 Pipe-shaped perforated blade 30, 30 Blade tray 30 a, 30 a Blade tray main body 30 b, 30 b Long convex portion 30 c Narrow short convex portion 30 d Wide short convex portion 40 Cas Accumulation box 41 Waste accumulation box cover 50 Punch device main body 51 Lifting motor 52 Drive pulley 53 Transmission belt 54 Driven pulley 55 Lifting screw rod 56 Drive bar 57 Guide plate 60 Punch base 61, 61 Gauge 70, 70 First fixing screw 80, 80 Second fixing screw

Claims (4)

A blade holder attached to a pipe-type punch and mounted with a plurality of pipe-shaped perforating blades for making a plurality of holes in a paper,
A drilling blade insertion part is provided so that the interval between a plurality of pipe-shaped drilling blades can be changed and installed.
At the base of each of the plurality of pipe-shaped drilling blades, a base portion having an outer periphery larger in diameter than the outer periphery of the pipe-shaped drilling blade is provided, and a short convex portion for fixing is provided on the upper portion of the outer periphery of the base portion. A blade tray having a main body protruding outward is provided,
When the base portion and the blade tray of each pipe-shaped drilling blade are inserted into the punching blade insertion portion and rotated, the short convex portion of the blade tray hits the back surface of the blade tip side substrate of the blade holder. A piercing blade is fixed to the piercing blade insertion portion of the blade holder in a replaceable manner,
The blade holder is
It is configured by stacking multiple substrates,
Among the plurality of substrates, a plurality of the pipe-shaped drilling blade bases, the main body of the blade tray, and the short convex portions are inserted at different hole pitches into the blade-side substrate closest to the cutting edge of the pipe-shaped drilling blade. Each of the plurality of pipe-shaped perforating blades is rotated by rotating the main body portion of the blade tray so that the short convex portion comes into contact with the back surface of the blade-side substrate. It is configured not to come out,
Among the plurality of substrates, there is a waste accumulation box side substrate close to a waste accumulation box that collects paper scraps that protrude from the root side through the pipe-like perforation blade farthest from the cutting edge of the pipe-like perforation blade. , A punched-out hole with a diameter larger than the inner diameter of the pipe-shaped drilling blade is provided at a different pitch,
The intermediate substrate between the cutting edge side substrate and the waste stacking box side substrate is inserted with the main body portion and the short convex portion of the blade tray of the plurality of pipe-shaped perforating blades, and the intermediate perforation has an inner diameter so that it can rotate. A blade insertion hole is provided,
The blade holder, wherein the blade edge side drilling blade insertion hole of the blade edge side substrate and the intermediate drilling blade insertion hole of the intermediate substrate constitute a drilling blade insertion portion of the blade holder. The blade holder according to claim 1, wherein
When the blade tray inserted through the perforated blade insertion hole of the blade tip side substrate rotates, the short convex portion comes into contact with the intermediate substrate of the blade holder so that the blade tray does not rotate excessively. A blade holder comprising a rotation preventing portion for preventing the blade holder . The blade holder according to claim 1 or claim 2,
A punch device main body that lowers the blade holder and opens a plurality of holes in the paper placed on the cradle by the blade tips of the plurality of pipe-shaped perforated blades mounted on the blade holder;
A pipe-type punch, characterized by having a waste accumulation box that collects paper scraps that protrude from the root side through a plurality of pipe-shaped perforating blades. In the pipe type punch according to claim 3,
The pipe holder, wherein the blade holder is fixed to the waste accumulation box with a screw, and the blade holder and the waste accumulation box are integrally attached and detachably mounted from the punch device body.

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