JP2003211369A - Staple remover and stapler with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an internal storage type staple remover that can avoid a failure caused by the pull-in failure of a staple by effectively preventing clogging of the staples inside a casing. <P>SOLUTION: This staple remover is provided with a hollow casing 2 having a staple storage space 20 inside; a staple pulling-out spatula member 3 provided at the tip part of the casing 2; a sliding member 5 having a hook arm 4 hooked to the staple pulled out by the spatula member 3 and inserted through the casing 2 so as to protrude and recede from the tip part of the casing 2 in the state of the hook arm 4 overlapping with the spatula member 3; and an operating member 6 for moving the sliding member 5 to the base end side of the casing 2 to pull the staple hooked to the hook arm 4, into the storage space 20. The staple remover of such constitution is further provided with a separating means 35 for separating the hook arm 4 moving to the base end side inside the casing 2, from the spatula member 3. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a staple remover for removing a staple binding a document or the like from the document or the like.

[0002]

2. Description of the Related Art For example, at the base end of a stapler, a spatula member for removing staples from a document or the like is projected, and the spatula member is inserted between the web portion of the staple and the paper surface and pulled up. The principle of leverage allows the staples to be removed from documents.

However, in such a staple remover composed only of a spatula member, it is necessary to manually remove the staples left on the spatula member each time.
There are drawbacks in that the fingers are injured during the removal, and the work of discarding the staples each time is very troublesome. Therefore, an internal storage type staple remover has already been proposed in which a plurality of staples extracted by a spatula member are stored in a casing so that these staples can be collectively discarded later (for example, actual open flat plate). 5-8881).

[0004] This conventional internal storage type staple remover has a hollow casing having a staple storage space inside, a spatula member for removing staples provided at the tip of the casing, and the spatula member. Has a hooking arm for hooking on the staple at the tip, and the hooking arm is hooked on the slide member inserted into the casing so that the hooking arm overlaps with the spatula member and can be pulled out from the tip of the casing. An operation member for moving the slide member toward the base end side of the casing so as to draw the staples into the storage space.

According to such a conventional staple remover, since the staple extracted by the spatula member is sandwiched between the spatula member and the hooking arm, the operating member can be moved to the base end side of the casing in this state. Accordingly, the staple can be pulled into the housing space of the casing by the hooking arm of the slide member. For this reason, it is not necessary to remove the removed staples one by one from the spatula member, so there is no need to injure fingers, and moreover, a plurality of staples stored in the storage space can be collectively discarded, so the staple disposal operation is simple. Has the advantage that

[0006]

However, in the above-described conventional staple remover, the slide member has a structure in which the stapler slides linearly in the longitudinal direction of the casing during the entire process of pulling the staple into the storage space by the hooking arm. Therefore, the staples sandwiched between the spatula member and the hooking arm are kept in pressure contact with the spatula member until reaching the storage space in the casing.

For this reason, in the conventional internally-removable staple remover, the staples are likely to be caught in the spatula member to cause clogging in the casing during the process of retracting the staples into the storage space. If such clogging occurs, the subsequent pulling-in operation of the staples cannot be performed, so that the remover fails.

The present invention has been made in order to eliminate the above-mentioned problems of the conventional device, and its problem is to effectively prevent the staples from being clogged in the casing and cause a failure due to a defective drawing of the staples. The point is to provide an internal storage type staple remover that can avoid the above.

[0009]

The present invention adopts the following solving means in order to solve the above problems. That is, the present invention is characterized in that, in the above-mentioned internally housed staple remover, a separating means is provided for separating the hooking arm from the spatula member as the slide member moves toward the base end side in the casing. . In the present invention described above, the staple extracted by the spatula member is sandwiched between the spatula member and the hooking arm of the slide member, and in this state, the operation member is moved to the proximal end side of the casing, It is designed to be drawn into the housing space of the casing by the hook arm.

In this case, according to the present invention, the separating means separates the hook arm moving toward the base end side in the casing from the spatula member, so that the base member is sandwiched between the spatula member and the hook arm. The staple moving to the end side is released from the sandwiching inside the casing, and the pressure contact force against the spatula member is not generated. Therefore, the staples are less likely to be caught in the spatula member, and the staples are effectively prevented from being clogged in the casing during the process of retracting the staples into the storage space.

In the present invention, the specific structure of the separating means is not particularly limited. Such separating means are, for example,
A link mechanism that swings the slide member moving to the base end side in the casing so as to separate from the spatula member,
Although it can be configured by a cam mechanism that guides the slide member moving to the base end side in the casing in a direction away from the spatula member, from the viewpoint of further simplifying the number of parts and the internal structure of the casing, the latter Is preferred.

Further, as the cam mechanism, the first and second protrusions provided at the front and rear of the slide member in the sliding direction are spaced apart from each other, and the first and second protrusions are formed separately in the casing so that these respective protrusions simultaneously come into contact with each other. If a cam mechanism having one and a second cam surface is adopted, since the front and rear parts in the sliding direction of the slide member are simultaneously guided by the first and second cam surfaces in the direction away from the spatula member, for example, the slide member The hooking arm can be reliably separated from the spatula member as compared with the case where only the front part of the guide is guided in the direction away from the spatula member.

Further, in the present invention, if a retracting spring for urging the slide member toward the base end side of the casing is provided in the casing, the staple can be retracted by the hooking arm almost automatically. The pulling operation can be further facilitated. Further, in the present invention, if a member having transparency such that the staples in the storage space can be recognized from the outside is adopted as the opening / closing lid that opens and closes the storage space freely, the storage space is stored in the storage space. Since the timing of discarding can be determined from the outside according to the amount of staples, a staple remover with better usability can be obtained in this respect.

The staple remover of the present invention is
It can be configured as a single product as shown in the figure, or can be incorporated into a stapler. And
In the case of adopting such a stapler with a remover, a pushing arm that can separate and push out the staples one by one, and a receiving arm that receives the pushed staples and bends the legs of the stapler via a pivot point. In staplers that are pivotally attached to each other,
The casing of the staple remover of the present invention may be connected to either one of the arms.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show a staple remover 1 according to the present embodiment, which is used when a staple binding a document or the like is removed from the document or the like. The remover 1 has a staple storage space inside. A hollow casing 2 having the same, a spatula member 3 for removing staples provided at a front end portion of the casing 2, and a hooking arm 4 for hooking the staples pulled out by the spatula member 3 and pulling the staple 2 into the casing 2 are provided at a front end portion. The slide member 5 which it has, and the operating member 6 for sliding this slide member 5 in the longitudinal direction of the casing 2 (left-right direction in FIG. 1).
And a retracting spring 7 for urging the slide member 5 toward the base end side (the right side in FIG. 1) of the casing 2.

Of these, the casing 2 is a synthetic resin-like upper case 9 that is substantially rectangular in plan view and has an opening at the lower side of the cross section, and the inside of the case 9 so as to close the lower opening of the upper case 9. The lower case 10 is made of metal and has a U-shaped cross section, and an opening / closing lid 11 provided on the lower surface side of the upper case 9 so as to be freely opened and closed. A slide hole 13 extending in the longitudinal direction of the casing 2 is formed on the tip side of the upper wall 12 of the upper case 9 for defining the moving direction and range of the operating member 6.

As shown in FIGS. 1 and 2, the lower case 1
The bottom wall 14 has a bottom wall 14 and a pair of left and right side walls 15 bent and formed on both sides of the bottom wall 14 in the width direction.
A staple passage hole 16 is formed in the central portion of the. The spatula member 3 is provided at the tip of the lower case 10.
Are integrally formed. The spatula member 3 has, on the upper surface side, a scooping surface 18 that extends from the introduction hole 17 formed in the distal end wall portion of the upper case 9 toward the distal end side, and is gradually thinned toward the distal end. A guide hole 19 into which the tip edge of the hooking arm 4 is slidably fitted is formed in the center of the spatula member 3 in the width direction.

The opening / closing lid 11 is made of a synthetic resin tray-like plate material which is curved downwardly in a concave shape. The staple storage space 20 is formed by an inner space of the tray-like plate material in cross section. There is. The front end portion of the opening / closing lid 11 is pivotally attached to the support pin 21 in the left-right direction (the penetrating direction of the paper in FIG. 1) protruding inward at the center of the lower surface side of the upper case 9 so as to be vertically rotatable. An engaging hook 22 that is detachably engaged with the bottom wall 14 of the lower case 10 at the base end of the opening / closing lid 11.
And a knob 23 for opening and closing the opening / closing lid 11 is integrally formed.

The passage hole 16 of the bottom wall 14 is arranged at a position substantially corresponding to the front half of the opening / closing lid 11, and the staple drawn into the lower case 10 by the hooking arm 4 is formed in this passage hole. It is adapted to be accommodated in the accommodation space 20 of the opening / closing lid 11 through 16. In addition, the opening / closing lid 11 has a storage space 20 that is an empty space in its cross section.
The staples in the inside are made of a synthetic resin having a transparency that is recognizable from the outside, whereby the amount of the staples stored in the storage space 20 can be determined from the outside by a proper amount.

The slide member 5 includes a slide body 25 housed in the lower case 10 of the casing 2 so as to be movable in the longitudinal direction, and the hooking arm projecting from the tip edge of the slide body 25 to the tip side. It is made of a synthetic resin plate material having 4 and 4 integrally. On the lower surface side of the front end of the hooking arm 4, a hooking claw 26 having a triangular cross-section that is hooked from above on the web portion of the staple extracted by the spatula member 3 is projected, and the arm 4 has a thickness direction (see FIG. 1). It is elastically deformable in the vertical direction.

A left and right camshaft 27 is inserted through the tip of the slide body 25 in a penetrating manner. The left and right protruding ends of the cam shaft 27 are slidably fitted in guide grooves 28 formed of long holes extending in the longitudinal direction of the casing 2 formed in the left and right side walls 15 of the lower case 10. Further, a cam projection 29 having a triangular shape in a side view is formed on the lower surface side of the base end portion of the slide body 25.

The guide groove 28 is provided in the casing 2 so that the lower surface of the hanging arm 4 is just overlapped with the upper surface of the spatula member 3 so that the arm 4 can move out of the introduction hole 17 of the casing 2. The slide height of the slide body 25 is positioned. Further, an inclined pressing surface 33 is formed downward at the tip of the slide body 25, and a triangular rib portion 34 with which the pressing surface 33 contacts is formed at an inner corner portion of the tip wall portion of the upper case 9. ing.

Therefore, when the slide member 5 is moved to the front end side (left side in FIG. 1) of the casing 2 so that the hooking arm 4 projects from the introduction hole 17 of the casing 2 to the outside, the pressing surface 33 has a rib portion. The leading end portion of the slide body 25 moves downward by abutting on the sliding member 34, whereby the hooking arm 4 is forcibly pressed against the upper surface side of the spatula member 3.

The staple remover 1 of this embodiment
Then, since the slide member 5 is moved to some extent in the up and down direction in the casing 2 by the separating means 35 described later, the gap between the upper wall 12 and the bottom wall 14 of the casing 2 is smaller than that of the slide body 25. The size is set to be larger than the thickness. The operation member 6
Is a rectangular handle portion 3 having a non-slip ridge on its upper surface.
0 and an intermediate portion 31 fixed to the lower surface of the handle portion 30.
And a pair of front and rear mounting pins 32 protruding from the lower surface of the intermediate portion 31. This mounting pin 32
The slide body 25 is forcibly fitted into a mounting hole provided at the center of the slide body 25 in the longitudinal direction in a retaining state, whereby the operating member 3 is directly connected to the upper surface side of the slide member 5.

The middle portion 31 of the operating member 6 is the upper case 9
It is slidably inserted into the slide hole 13 formed in the upper wall 12, whereby the movement range of the operating member 6 and the slide member 5 in the longitudinal direction of the casing 2 is regulated. The retracting spring 7 is a lower case 10.
It consists of a coil-shaped tension spring housed in the base end side portion. The leading end of the retracting spring 7 is the slide body 2
The base end portion of the spring 7 is connected to the base end wall of the lower case 10. Therefore, in the remover 1 of this embodiment, the spring force of the pull-in spring 7 causes the hooking arm 4 formed on the slide member 5.
Is automatically drawn into the casing 2.

The staple remover 1 of this embodiment is further provided with a separating means 35 for separating the hooking arm 4 from the spatula member 3 as the slide member 5 moves toward the base end side in the casing 2. The separating means 35 in the example includes a cam mechanism that guides the slide member 5 moving toward the base end side in the casing 2 in a direction away from the spatula member 3.

In this cam mechanism, the protruding end portion (first protrusion) and the cam protrusion (second protrusion) 29 of the cam shaft 27 which are provided apart from each other in the sliding direction of the slide member 5 are provided.
And the first and second cam surfaces 36, 37 formed separately in the casing 2 so that the respective projections 27, 29 simultaneously come into contact with each other. Of the two cam surfaces 36, 37, the first cam surface 36 is formed by extending the base end side of the guide groove 28 by inclining it upward, and the second cam surface 37 of the casing 2 is formed. The bottom wall 14 is formed by bending the base end side edge of the passage hole 16 downward.

Therefore, the slide member 5 is moved to the base end side of the casing 2 by the operating member 6 from the state in which the hooking arm 4 projects outside the casing 2 and overlaps with the spatula member 3 (the state shown in FIG. 2). Then, as shown in FIG. 1, the front and rear projections 27 and 29 ride on the first and second cam surfaces 36 and 37 at the same time when the hooking arm 4 is retracted into the casing 2. The slide body 25 is moved upward by the cam action of the sliders 37, 37, whereby the hooking arm 4 is separated from the spatula member 3.

Next, a method of using and operation of the staple remover 1 according to this embodiment having the above-mentioned structure will be described. First, in order to remove the staples binding the documents and the like by the remover 1 of the present embodiment, the front edge of the spatula member 3 fixed to the front end side of the casing 2 is attached to the paper surface and the web portion of the staple (not shown). By inserting it and pulling it up, the staples are pulled out from documents etc. by the principle of leverage.

Next, the handle portion 30 of the operating member 6 is pushed out by the thumb to move the slide member 5 to the tip side of the casing 2. Then, since the hooking arm 4 overlaps with the spatula member 3 and protrudes to the outside of the casing 2, the staples extracted by the spatula member 3 are sandwiched between the spatula member 3 and the hooking arm 4.

Even when the staple is removed by the spatula member 3 with the hooking arm 4 protruding in advance, the staple is sandwiched between the spatula member 3 and the arm 4. After that, when the thumb is released from the handle portion 30 of the operation member 6, the slide member 5 is automatically moved to the base end side of the casing 2 by the spring force of the retracting spring 7 and is hooked on the hooking claw 26 of the hooking arm 4. The staples are drawn into the casing 2 from the introduction hole 17 together with the arm 4.

The camshaft 2 of the slide member 5
When the cam 7 and the cam projection 29 reach the first and second cam surfaces 36, 37, the sliding member 5 floats upward from the bottom wall 14 of the casing 2 by the cam action of these cam surfaces 36, 37. 2, the hook arm 4 is separated from the spatula member 3 and the staples are released from being caught by the both. After that, the staples, which have been released from being sandwiched by the members 3 and 4, are guided to the storage space 20 of the opening / closing lid 11 through the passage holes 16 of the bottom plate 14, whereby the removing work of the staples by the remover 1 is completed.

Thus, the remover 1 according to this embodiment
According to this, since the hooking arm 4 moving to the base end side in the casing 2 is separated from the spatula member 3 by the separating means 35 including the cam mechanism, the hooking arm 4 pulls the hooking arm 4 to the base end side. Inside the casing 2, the staples released are released from being sandwiched by the arms 4, and the spatula member 3 formed by the staples is released.
No pressure contact force is generated.

For this reason, the staples are less likely to be caught in the spatula member 3, and the staples are effectively prevented from being clogged in the casing 2 in the process of retracting the staples to the storage space 20 in the casing 2. Therefore, it is possible to avoid the failure of the remover 1 due to the defective drawing of the staples.

The present invention is not limited to the above embodiments. For example, in the above embodiment, the retracting spring 7 can be omitted. Further, the opening / closing lid 11 can be configured by a slide hatch provided so as to be slidable in the longitudinal direction with respect to the bottom wall 14 of the lower case 10. Further, the separating means 35 can be configured not only by the cam mechanism described above but also by a link mechanism (not shown) that swings the slide member 5 so as to separate it from the spatula member 3.

Further, the remover 1 of the present invention can be incorporated not only as a single product shown in FIGS. 1 to 4 but also in a stapler (not shown). In this case, the casing 2 of the remover 1 according to the above embodiment may be integrally connected to either the pushing arm or the receiving arm that constitutes the stapler.

[0037]

According to the present invention, it is possible to effectively prevent the staples from being clogged in the casing, so that it is possible to avoid a failure due to a defective drawing of the staples.

[Brief description of drawings]

FIG. 1 is a side sectional view of a staple remover when a hooking arm is housed inside a casing.

FIG. 2 is a side cross-sectional view of the staple remover when the hooking arm is projected to the outside of the casing.

FIG. 3 is a plan view of a staple remover.

FIG. 4 is a rear view of the staple remover of FIG. 3 as viewed from the right side.

[Explanation of symbols]

1 Staple remover 2 casing 3 Spatula member 4 Hook arm 5 Slide member 6 Operation member 7 Retraction spring 11 Open / close lid 20 storage space 27 Camshaft (first protrusion) 29 Cam protrusion (second protrusion) 35 Separation Means 36 First Cam Surface 37 Second cam surface

Claims (6)

[Claims] 1. A hollow casing having a staple storage space therein, a spatula member for removing staples provided at a tip portion of the casing, and a hooking arm for hooking the staple pulled out by the spatula member. A slide member that is inserted into the casing so that the hooking arm is overlapped with the spatula member and is retractable from the tip of the casing, and the staple that is hooked by the hooking arm. A staple remover comprising: an operating member that moves the slide member toward the base end side of the casing so as to be drawn into the storage space, wherein the hooking arm moving toward the base end side inside the casing is the spatula member. Is provided with a separating means for separating Staple remover. 2. The separating means is constituted by a cam mechanism that guides a slide member moving toward the base end side in the casing in a direction away from the spatula member.
Staple remover described in. 3. The cam mechanism is provided with a first and a second protrusion, which are spaced apart in the front and rear of the slide member in the sliding direction, and a first protrusion, which is formed separately in the casing so that these protrusions come into contact with each other at the same time. The staple remover according to claim 2, further comprising a second cam surface. 4. The staple remover according to claim 1, wherein a retracting spring for urging the slide member toward the base end side of the casing is provided in the casing. 5. An opening / closing lid for closing the storage space so as to open and close is provided, and the opening / closing lid is transparent enough to allow the staples in the storage space to be recognized from the outside.
The staple remover according to any one of to 4. 6. A push-out arm capable of separating and pushing out staples one by one, and a receiving arm for receiving the pushed-out staple and bending its leg portion are pivotally attached to each other via a pivotal support point. A stapler, wherein the staple remover casing according to any one of claims 1 to 5 is connected to either one of the arms.