KR200257901Y1 - Punch for office work - Google Patents

Abstract

The present invention relates to an office punch, comprising: a support plate having a plurality of first to third punching holes formed therein to form a receiving space opened downward therein and to select an interval of a hole to be punched on an upper surface thereof; First to third punches spaced apart from each other at predetermined intervals in an up and down direction above the first to third punching holes and interacting with the corresponding punching holes when descending to drill an object; A support bracket each disposed to form an insertion space of the object on an upper side of the first to third punching holes from an upper surface of the support plate to support the first to third punches; A pressing plate coupled to the support bracket so as to be rotatable in an up and down direction and pressing any one of the first punch, the second punch, and the third punch during downward pivoting to allow the object to be perforated; A gap control lever movably disposed between the second and third punches at the bottom of the press plate so that any one of the second punch and the third punch can be selectively pressed during the downward rotation of the press plate; And a lever position fixing means formed between the gap adjusting lever and the pressing plate to fix the gap adjusting lever to a position above the one of the second punch and the third punch. Thereby, the office punch which can suppress that the space | interval adjustment lever which adjusts a punch hole space | part is suppressed from unexpectedly selecting from the position chosen is provided.

Description

Office Punch {PUNCH FOR OFFICE WORK}

The present invention relates to an office punch, and more particularly, to an office punch in which the gap adjusting lever for adjusting the punch hole spacing can be suppressed from being accidentally deviated from the selected position.

An office punch is a type of office device that punches a document for binding various documents.

These office punches mainly include a support plate having a downwardly open receiving space and a pair of punching holes formed at predetermined intervals on an upper surface thereof, and a pair of holes arranged correspondingly to the punching holes to interact with the punching holes to punch the object. A punch, a support bracket for supporting the punch up and down around the punch, and a pressing plate on which one side is hinged to the support bracket so as to be rotatable along the up and down direction with respect to the support plate to press the punch.

In some of the office punches, the punch is disposed adjacent to the punch on either side, and the gap is provided so as to be slidably moved between the pressing plate and the punch so that the pressing plate presses any one punch, thereby allowing the user to punch the punch hole. It allows you to selectively adjust the spacing of.

1 is a perspective view of a conventional office punch, FIG. 2 is an exploded perspective view of the spacing control lever of FIG. 1, and FIG. 3 is a partially enlarged cross-sectional view of the spacing control lever region of FIG. As shown in these figures, the office punch is a support plate 110 is formed with a first opening and a third punching hole formed in the downward opening receiving space and communicated with the receiving space and spaced apart from each other at predetermined intervals on the upper surface, respectively. And first to third punches 115a to 115c that are erected and placed on the upper side of the punching hole so as to interact with the first to third punching holes to drill the object, and the insertion space S of the object. The support bracket 21 which is spaced apart from the upper surface of the support plate 110 so as to form the support bracket 21 so as to be movable up and down around the first to third punches 115a to 115c and the support plate 110 along the vertical direction. One side is hinged to the support bracket 21 so as to be rotatable, and the pressing plates 131 for pressing the first to third punches 115a to 115c, and the second and third punches 115b and 115c and the pressing plate 131. Disposed between the second and third punches 115b and 115c when the pressing plate 131 rotates downward. ) Is provided with a spacing control lever 141 to adjust the spacing of the punching hole by allowing any one of them to descend.

The lower plate of the support plate 110 is detachably coupled to the blocking plate 112 for blocking the lower region of the support plate 110 so that the scrap falling through the punching hole during the drilling of the object is collected. A return spring 116 is coupled around the three punches 115a to 115c so that the first to third punches 115a to 115c and the pressing plate 131 can be returned to their initial positions after punching.

On the other hand, the pressing plate 131 is coupled to the pressing pin 133 disposed in parallel with the rotation axis so as to press the first punch (115a) during the downward rotation, the second punch (115b) and the third punch (115c). The gap adjusting lever 141 is disposed above the) so that any one of the second and third punches 115b and 115c can be selectively pressed.

The gap adjusting lever 141 is provided on one side of the pair of hinge pin balls 143 and the hinge pin balls 143 so as to accommodate the hinge pins 135 around the hinge pins 135 of the pressing plate 131. A lever body 142 having a pressing protrusion 144 protruding downward so as to be disposed above the second punch 115b and the third punch 115c, one end of which is coupled to the lever body 142, and the other end of the pressing plate A handle 152 protruding from the surface of the 131, a sphere 155 disposed to protrude upward with respect to the lever body 142, and contacting the bottom surface of the pressing plate 131, the sphere 155 and the pressing plate 131. Spring member 157 is applied to the sphere 155 to elastically contact each other.

The lever body 142 has a receiving groove 146 is formed to accommodate the spring member 157 and the sphere 155, the handle coupling so that the handle 152 is coupled to one side of the receiving groove 146. A ball 148 is formed.

The pressing plate 131 has a long hole 136 is formed so as to correspond to the movement trajectory of the handle 152 so as to be slid in an exposed state of one end of the handle 152.

The handle 152 is a large diameter portion 153a protruding upward of the pressing plate 131 and a sliding portion that is slidably coupled to the inside of the long hole 136 by being reduced in a radial direction on one side of the large diameter portion 153b. 153b and a coupling portion 153c which is reduced in a radial direction on one side of the sliding portion 153b and accommodated in the handle coupling hole 148 of the lever body 142 and fixed integrally therewith.

By this configuration, the sphere 155 is placed on the tip of the spring member 157 in a state in which the spring member 157 is accommodated in the accommodation groove 146 and the sphere in the direction in which the spring member 157 is compressed. 155 is pressed against the bottom of the pressing plate 131. Next, the sliding part 153b of the handle 152 is inserted into the long hole 136 through the long hole 136 on the upper surface side of the pressing plate 131, and the end of the coupling part 153c is the lever body ( It is to be accommodated in the handle coupling hole 148 of 142. A head portion (not shown) is formed at the end of the coupling portion 153c passing through the handle coupling hole 148 to prevent the handle 152 and the lever body 142 from being separated from the pressing plate 131.

On the other hand, if you want to form a hole having a predetermined interval on one side edge of the object, grab the handle 152 and press it to one side so that the punch corresponding to the desired hole interval can be lowered to press the gap adjusting lever 141 It is located on the upper side of. Next, when the object is inserted into the insertion space (S) and presses the pressing plate 131 downward, the corresponding punch is lowered by the pressing pin 133 and the pressing protrusion 144 to puncture the object. Scrap generated during the drilling is collected inside the pressing plate 131 through the corresponding punching hole, and after punching, the punch and the pressing plate 131 return to the initial position by the elastic force of the return spring 116.

However, in such a conventional office punch, the spring member between the gap adjusting lever 141 and the pressing plate 131 to prevent the upper surface of the gap adjusting lever 141 from being in surface contact with the bottom surface of the pressing plate 131. The ball 155 is elastically supported by 157 to be placed in contact with each other, but the handle 152 of the gap adjusting lever 141 protrudes upward of the pressing plate 131, and the gap adjusting lever 141 is provided. Since the position fixing means for fixing on the selected punch is not provided, the gap adjusting lever 141 is unintentionally moved in the corresponding position and over the adjacent upper side of the second punch 115b and the third punch 115c. When located, there is a problem that two punches are simultaneously lowered, or unwanted punches are lowered to punch holes in an undesired position, so that there is a high possibility of seeing a loss.

Accordingly, it is an object of the present invention to provide an office punch that can suppress the gap adjustment lever for adjusting the punch hole spacing from being accidentally released from the selected position.

1 is a perspective view of a conventional office punch,

Figure 2 is an exploded perspective view of the spacing control lever of Figure 1,

3 is a partially enlarged cross-sectional view of the spacing control lever region of FIG. 1;

4 is a perspective view of an office punch according to an embodiment of the present invention,

5 is a partial cutaway perspective view of the office punch of FIG. 4, FIG.

6 is an exploded perspective view of FIG. 4;

7 is a partial cutaway cross-sectional view of the coupling state of FIG.

8 is an enlarged cross-sectional view taken along the line VII-VII of FIG. 7;

9 is an enlarged view illustrating main parts of FIG. 6;

Figure 10 is an exploded perspective view of the interval control lever area of the office punch according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: support plate 14a-14c: first to third punching holes

21a to 21c: first to third punches 25: first support bracket

31: return spring 35: second support bracket

41: pressing plate 42: receiving hole

43: cover 45: hinge pin

49: lever support pin 51: spacing lever

52: lever body 53: pin receiving ball

54: spring receiving portion 55: anti-slip projection

56 pressure member 57 stopper

62: sphere 64: spring member

The object is, according to the present invention, the first punching hole to form a receiving space opened downwards in the interior and communicate with the receiving space on one side of the upper surface, and the receiving space on the other side at a predetermined distance from the first punching hole A support plate communicating with and supporting the second and third punching holes adjacent to each other; First to third punches spaced apart from each other at predetermined intervals in an up and down direction above the first to third punching holes and interacting with the corresponding punching holes when descending to drill an object; A support bracket each disposed to form an insertion space of the object on an upper side of the first to third punching holes from an upper surface of the support plate to support the first to third punches; A pressing plate coupled to the support bracket so as to be rotatable in an up and down direction and pressing any one of the first punch, the second punch, and the third punch during downward pivoting to allow the object to be perforated; A gap control lever movably disposed between the second and third punches at the bottom of the press plate so that any one of the second punch and the third punch can be selectively pressed during the downward rotation of the press plate; And a lever position fixing means formed between the gap adjusting lever and the pressing plate to fix the gap adjusting lever to a position above the one of the second punch and the third punch. Is achieved.

Here, the lever position fixing means, the second projecting portion projecting toward the other from any one of the gap control lever and the pressing plate, and the second so as to accommodate the projection portion on the other of the gap control lever and the pressing plate Preferably it includes a receiving portion formed to correspond to the punch and the third punch, and elastic means for applying an elastic force to the protrusion so that the protrusion is in elastic contact with the other.

The protruding portion is formed to be integrally movable with the gap control lever, and the receiving portion is effectively a receiving hole formed through the pressing plate.

Preferably, the accommodation hole is formed to have a cross-sectional shape in which at least a partial region extends toward the spring member in the thickness direction.

In addition, the protruding portion is a sphere formed separately from the spacing control lever, it is effective that the elastic means is a coil-shaped spring member that is elastically coupled to the spacing control lever in the vertical direction to elastically support the sphere. .

It is effective to further include a pressing plate cover coupled to the pressing plate to block the receiving hole.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

Figure 4 is a perspective view of the office punch according to an embodiment of the present invention, Figure 5 is a partial cutaway perspective view of the office punch of Figure 4, Figure 6 is an exploded perspective view of Figure 4, Figure 7 is a part of the combined state of Figure 6 8 is an enlarged cross-sectional view taken along the line VII-VII of FIG. 7, and FIG. 9 is an enlarged view of the main portion of FIG. 6. As shown in these figures, the office punch is a support plate 10 formed with a plurality of first to third punching holes 14a to 14c which communicate with the receiving space on the upper surface to form a receiving space opened downward therein. ), The first to third punches 21a to 21c which are placed on the upper side of each punching hole of the support plate 10 to interact with the punching holes to drill the object, and the object above the support plate 10. First and second support brackets 25 and 35 protruding around the punching hole from the upper surface of the support plate 10 so that the insertion space S can be inserted therein to support the punch; One side is hinged to the first and second support brackets 25 and 35 so as to be rotatable in the up-and-down direction with respect to the support plate 10, and the pressing plate 41 presses the punch downward when the downward rotation is performed. Between the bottom and the second and third punches 21b and 21c between the second and third punches 21b and 21c. The gap adjusting lever 51 which is arranged to be capable of moving and adjusts the gap of holes to be drilled, and the gap adjusting lever 51 is fixed to the upper side of any one of the second punch 21b and the third punch 21c. The lever position fixing part 61 is comprised.

A first punching hole 14a is formed at one side of the upper surface of the support plate 10 so as to select a gap between two holes to be drilled, and at the other side of the support plate 10, a predetermined gap, for example, 70 mm and The second punching hole 14b and the third punching hole 14c spaced apart by 80 mm are formed through. The bottom of the support plate 10 is detachably coupled to the blocking plate 11 for blocking the bottom of the support plate 10 to collect the scrap falling into the interior of the receiving space through the corresponding punching hole when punched, the upper surface In the central area, the display unit 12 is formed to display the center position according to the hole spacing of the object to be drilled. A guide member 13 is coupled to the upper region along the thickness direction of the support plate 10 to guide the position of the object to be pulled out and retractable along the plate surface direction.

The first and second support brackets 25 and 35 have a “Ｕ” shape with an open upper side, and a punch support part 26 that is bent at the upper end of the punching hole side so as to support the punch in a liftable manner to form a rectangular cross section. And 36 are formed, respectively. In the lower region of each punch support part, guide parts 27 and 37 are formed, each of which has a protruding end portion curved upward to guide the object when the object is inserted. Inside each punch support portion, one side is in contact with the bottom surface of the punch support portions 26 and 36 and the other end is fixed to be movable in one piece in a corresponding punch to return the punch to an initial position spaced a predetermined distance away from the punching hole ( 31) are provided respectively.

The pressing plate 41 has a “Ｕ” shape in planar projection so that both ends may be hinged to the upper regions of the support brackets 25 and 35, respectively, and the receiving plate 42 will be described later on the upper surface of the pressing plate 41. The cover 43 is manufactured by injection molding, such as a synthetic resin member to block the) is combined.

Both end regions of the pressing plate 41 have a cross-sectional shape of “Ｕ” shape to accommodate each upper region of the support brackets 25 and 35, and each end region can accommodate the hinge pin 45. Hinge pin accommodation holes are each formed through. At the end of the first support bracket 25 on the pressing plate 41, a pressing pin 47 for contacting the first punch 21a and pressing the first punch 21a is coupled in parallel with the hinge pin 45. In addition, a lever support pin 49 is coupled to the second end of the support bracket 35 so as to support the gap adjustment lever 51 so as to be slidably movable.

On the other hand, the gap adjusting lever 51 is formed so as to have a cross-sectional shape of the lever body 52 injection molded into the synthetic resin member, and the metal member "부재" is coupled to accommodate one side of the lever body 52, the second The pressurizing member 56 which contacts-presses any one of the punch 21b and the 3rd punch 21c is comprised.

Both sides of the pressing member 56, the pin hole 58 is formed to pass through to correspond to each other to accommodate the lever support pin 49, the lever body 52, the pin hole 58 of the pressing member 56 The pin accommodation hole 53 is formed to be able to communicate with each other. The upper surface of the lever body 52 is formed with a spring receiving portion 54 recessed to accommodate the spring member to be described later, both edges of the opposite side of the pin hole 58 along the longitudinal direction of the lever body 52 There are a plurality of anti-slip projections 55 are formed so that the slip can be prevented. On one side of the anti-slip projection 55 is formed a stopper (57) protruding in contact with the side of the pressing plate 41 to limit the movement of the lever body (52).

The lever position fixing portion 61 is a sphere 62 interposed between the pressing plate 41 and the gap adjustment lever 51, and is accommodated in the spring receiving portion 54 so as to be able to stretch in the vertical direction. Of the second punch 21b and the third punch 21c so as to accommodate a portion of the sphere 62 on the pressing plate 41 and the spring member 64 in the form of a compression coil elastically pressurized toward the pressing plate 41. It is configured to include a receiving hole 42 formed to correspond to the position.

The receiving hole 42 is formed so that the inlet of the spring member side is extended along the thickness direction by the so-called countersinking method, and may be formed to have the same diameter along the thickness direction.

Here, as shown in Figure 10, the spring member 74 is configured in the form of a leaf spring, the sphere 76 is configured to be formed integrally with the leaf spring member 74 in the form of embossing, etc. in the leaf spring member In addition, the lever body 52 may be configured to be coupled by providing a coupling groove 74 for coupling the spring member 74.

By this configuration, in the case where it is desired to drill a predetermined distance to one side edge of the object, the punching object is first inserted into the insertion space S, and the gap adjusting lever 51 is positioned at a position corresponding to the desired hole spacing. Position it. When the spacer lever 51 is pressed to one side, the sphere 62 accommodated in the accommodation hole 42 is moved along the edge of the accommodation hole 42, and the spring member 64 is further compressed while being elastic Will accumulate. When the sphere 62 moved by the pressing force is accommodated in the receiving hole 42 formed at the desired position, the spring member 64 elastically pressurizes the sphere 62 in the state in which it is extended to the initial position so that the gap adjusting lever 51 This prevents the accidental departure from the selected position.

In the above-described and illustrated embodiments, an example in which a receiving hole in the form of a through hole is formed in the receiving portion for accommodating the sphere so as to accommodate the sphere on the pressing plate to prevent the spacer lever from being accidentally separated from the selected position. Although described for example, it may be configured in the form of a receiving groove recessed from the bottom surface of the pressing plate.

In addition, in the above-described and illustrated embodiments, the spring member and the sphere are configured to be coupled to the spacing lever, and the receiving part is formed to accommodate the sphere in the pressing plate to fix the position. It may be formed to receive the receiving portion to form a projection to the spacing lever.

In addition, in the above-described and illustrated embodiments, the case in which the protrusions in the form of spheres are elastically supported by the spring member has been described, for example. It can also be configured.

As described above, according to the present invention, there is provided an office punch which can prevent the gap adjustment lever for adjusting the punched hole spacing from being accidentally selected from the selected position to prevent the malfunction of the object and the puncturing at an undesired interval. do.

Claims (6)

A first punching hole forming a receiving space downwardly opened therein and communicating with the receiving space on one side of the upper surface; and a second hole communicating with the receiving space on the other side at a predetermined distance from the first punching hole and adjacent to each other; And a support plate on which a third punching hole is formed; First to third punches spaced apart from each other at predetermined intervals in an up and down direction above the first to third punching holes and interacting with the corresponding punching holes when descending to drill an object; A support bracket each disposed to form an insertion space of the object on an upper side of the first to third punching holes from an upper surface of the support plate to support the first to third punches; A pressing plate coupled to the support bracket so as to be rotatable in an up and down direction and pressing any one of the first punch, the second punch, and the third punch during downward pivoting to allow the object to be perforated; A gap control lever movably disposed between the second and third punches at the bottom of the press plate so that any one of the second punch and the third punch can be selectively pressed during the downward rotation of the press plate; And an lever position fixing means formed between the gap adjusting lever and the pressing plate to fix the gap adjusting lever to a position above the one of the second punch and the third punch. The method of claim 1, The lever position fixing means may include a protrusion projecting from one of the gap control lever and the pressing plate toward the other, and the second punch to accommodate the protrusion on the other of the gap adjustment lever and the pressing plate. And an accommodating portion formed to correspond to the third punch, and elastic means for applying an elastic force to the protrusion so that the protrusion can elastically contact the other one. The method of claim 2, The protrusion is formed so as to be able to flow integrally with the gap control lever, the receiving portion is an office punch, characterized in that the receiving hole formed through the pressing plate. The method of claim 3, The protrusion is a sphere formed separately from the spacing control lever, the elastic means is coupled to the spacing control lever in the vertical direction in the coil-like spring member for elastically supporting the sphere punch. The method of claim 3, The receiving hole is an office punch, characterized in that it has a cross-sectional shape in which at least a partial region is extended to the spring member side along the thickness direction. The method according to any one of claims 3 to 5, Office punch, characterized in that further comprising a pressing plate cover coupled to the pressing plate to block the receiving hole.