JP2005138248A - Stapler - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stapler which has excellent operability, durability, and rupture resistance, and imparts strong boosting effects. <P>SOLUTION: The stapler is provided with: a first rotating shaft P1, which opens/closes the tip part of a staple storage part 2 and the tip part of a first handle part 3; a second rotating shaft 62a, which approaches/separates the tip part of a second handle part 4 to/from a staple-striking position for striking a staple X; and an interlocking operation means 5, which executes the interlocking operation so as to position the tip part of the first handle part 3 and the tip part of the second handle 4, to an operation standby state W1, to a pushing-in state W3 ready to strike the staple X, or to an opening state W4 ready to take out/put in the staple X from/to the staple storage part 2 by moving the tip part of the first handle part 3 and the tip part of the second handle 4, to the side opposite to the staple-striking position. The first rotating shaft P1 and the second rotating shaft 62a are fixed to the staple-striking position. The stapler is composed so that the interlocking operation means 5 can always execute the interlocking operation of the first handle part 3 and the second handle part 4 from the pushing-in state W3 to the opening state W4. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a staple for binding paper sheets used in an office or the like.

2. Description of the Related Art Conventionally, a stapler has been known in which an external handle and an internal handle each have two movable fulcrums and exhibit a boosting effect by a structure that is connected by a single connecting member provided on the external handle (for example, Patent Documents). 1).
Japanese Patent Laid-Open No. 2002-28877 (pages 2 and 3, FIGS. 3 to 5)

  However, in the conventional stapler, since there are two movable fulcrums, the workability and operability are reduced, and the external handle can be moved to open the staple storage portion. Therefore, there is a problem that the strength is inferior because of the elongated holes.

  The present invention has been made paying attention to such a problem, and its main purpose is a stapler that has excellent operability, durability, fracture resistance, and can add a powerful boosting effect. Is to provide.

  That is, the stapler of the present invention includes a staple storage portion that stores staples, a first handle portion that includes a push blade for hitting the staples at a distal end portion, and a second that receives an operating force for hitting from the outside. A stapler including a handle portion, the proximal end portion of the staple accommodating portion and the proximal end portion of the first handle portion for opening and closing the distal end portion of the staple accommodating portion and the distal end portion of the first handle portion. A proximal end of the second handle portion in order to move the first rotation shaft for pivotally supporting the portion and the distal end portion of the second handle portion with respect to the staple placement position for firing the staple. A second rotation shaft that rotatably supports the portion at a position closer to the needle hitting position than the first rotation shaft, and a distal end portion of the first handle portion and a distal end portion of the second handle portion. Needle position side from standby state The first handle so that the staple can be positioned in an open state in which the staple can be moved and pushed, or moved to the counter-stapling position side of the operation standby state and the staple can be taken in and out of the staple storage portion. Interlocking operation means for interlocking the part and the second handle part, the first rotation shaft and the second rotation shaft are fixed with respect to the hitting position, and the interlocking operation means The first handle portion and the second handle portion are configured so as to always be capable of interlocking operation from the pushed-in state to the released state.

  If this is the case, the interlocking operation means can always interlock the first handle portion and the second handle portion in a state where staples can be stapled and a state where staples can be taken in and out, and Since the first rotation shaft and the second rotation shaft serving as fulcrums are both fixed, operability, durability, and fracture resistance can be improved, and a strong boosting effect can be added.

  In order to secure the attachment strength between the second rotation shaft and the second handle portion, it is desirable that the second rotation shaft rotatably supports the second handle portion so as not to be attached or detached.

  Further, in order to reduce the number of members, it is preferable that the second rotation shaft is formed integrally with a second handle support portion for supporting the second handle portion.

  Further, the second handle support portion is formed in an upward U-shape, and the second rotation shaft is formed so as to protrude between the standing walls of the second handle support portion, and If the base end portion of the second handle portion is rotatably supported by the second rotating shaft that protrudes between the upright walls, the attachment portion of the second handle portion and the second rotating shaft can be mounted. Since it is positioned between the standing walls, the appearance can be improved. Furthermore, it is possible to prevent the attachment portion between the second handle portion and the second rotation shaft from interfering with other members such as the handle cover, and the design of the handle cover and the like is facilitated.

  In addition, if the first rotating shaft is formed in a substantially cylindrical shape, and the longitudinal dimension thereof is shorter than the dimension between the standing walls of the second handle support part, The first rotating shaft and other members such as the handle cover can be prevented from interfering with each other, and the design of the handle cover and the like is facilitated.

  By the way, in order to secure the strength while simply configuring the mounting portion of the first rotation shaft and the first handle portion, the first rotation shaft is formed in an upward U-shape for supporting the first rotation shaft. A handle support portion is provided, and the first rotation shaft is inserted into a through-hole formed in the side wall of the base end portion of the first handle portion, and both end portions of the first rotation shaft are inserted. It is desirable that the first handle support portion is supported by a through hole formed in the standing wall.

  As a preferred mode of interlocking operation means of the present invention, the interlocking operation means includes an elongated hole-like engaging portion and an engaged portion that moves in the engaging portion while engaging with the engaging portion. One of the engaging part and the engaged part is provided in the first handle part, and the other is provided in the second handle part.

  Further, in order to prevent the first handle portion and the second handle portion in a predetermined state from being unexpectedly opened, the engaged portion and one end portion of the engaging portion are brought into contact with each other so that the predetermined state is reached. It is preferable that the distal end portion of a certain first handle portion and the distal end portion of the second handle portion are prevented from further opening with respect to the staple storage portion.

  In order to make the staples easy to put in and out, the predetermined state is an open state in which the staples can be put in and out of the staple accommodating portion, and the interlocking operation means moves the first handle toward the open state. The first handle portion and the second handle portion are operated in an interlocking manner while maintaining the state in which the tip end portion of the second portion and the tip end portion of the second handle portion are close to each other, and the tip end of the staple storage portion And an angle connecting three points of the proximal end portion of the staple accommodating portion or the proximal end portion of the second handle portion and the distal end portion of the second handle portion is an angle of approximately 90 degrees or more. It is desirable that

  Moreover, as a specific aspect of the engaging portion and the engaged portion, the first handle portion and the second handle portion each include a pair of side walls, and the engaging portion is A long hole that penetrates the side wall of the second handle portion, and the engaged portion is a support shaft that protrudes from the through holes formed on both side walls of the first handle portion. .

  Note that the other end of the engaging portion when the first handle portion and the second handle portion are guided by the interlocking operation means into a pushing state where the staple is pushed by the pushing blade and can be struck. If the portion and the engaged portion are configured to substantially contact each other, an increase in the substantially contact area between the engaging portion and the engaged portion increases, so that the load is dispersed and the engaging portion and the engaged portion are The durability of can be increased. Here, “substantially abutting” is a concept including that the abutting objects abut against each other so as to slide.

  Further, in order to obtain an effective boosting effect, the interlocking operation means constitutes a transmission means for transmitting the operating force to the first handle portion at least on the other end side of the engagement portion. It is desirable.

  In addition, the distal end portion of the second handle portion is positioned closer to the use end side than the pressing blade when the staple is struck, and the operating force is applied to the distal end portion of the second handle portion. By providing an operation force receiving portion for receiving the staple, the staple can be strongly hit with a small operation force by the lever principle.

  If the operation force receiving portion includes a reinforcing rib that protrudes or is recessed in substantially the same direction as the direction in which the operation force is received, Does not invite deformation.

  In addition, as another desirable aspect of the staple of the present invention, a staple accommodating portion that accommodates the staple, a first handle portion that strikes the staple, and a second handle portion that receives an operation force for the strike from the outside. A first rotation shaft that rotatably supports the staple storage portion and the first handle portion, and a predetermined portion of the second handle portion from the first rotation shaft. In addition, the second rotation shaft that is rotatably supported at a position close to the needle-striking position, the first handle portion and the second handle portion are in a state where the staple can be stapled, or the staple is stored in the staple storage portion. Interlocking operation means for interlocking operation in a state where it can be taken in and out, and the first rotation shaft and the second rotation shaft are fixed with respect to the hitting position, and the interlock operation means Wherein the press-down state toward the open state, include those that are configured to have always interlocked operable state and the first handle portion and the second handle portion.

  As described above, according to the stapler of the present invention, the interlocking operation means always interlocks the first handle portion and the second handle portion between the state where staples can be struck and the state where staples can be taken in and out. It is possible, and the first and second pivot shafts, which are fulcrums, are both fixed, improving operability, durability, and fracture resistance, and adding a powerful boost effect Can be made.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the stapler SP according to the present invention includes a base portion 1, a staple accommodating portion 2 that accommodates staples X, an inner handle 3 that is a first handle portion for driving staples X, and a second handle. An outer handle 4 as a part, interlocking operation means 5 for interlocking the inner handle 3 and the outer handle 4, and an outer handle support part 6 as a second handle support part for rotatably supporting the outer handle 4 And an inner handle support portion 7 as a first handle support portion for rotatably supporting the inner handle 3, and a handle cover 8 for covering the upper side and the side of the outer handle 4.

  In the present embodiment, the side that does not include the handle support portions 6 and 7 is described as the front side (use end side), and the side that includes the handle support portions 6 and 7 is described as the back side (counter use end side). It can be used even if the front and rear sides are reversed, that is, the use end side and the counter use end side are reversed.

  As shown in FIG. 1 and the like, the base portion 1 includes a base body 11 having a substantially rectangular shape in plan view, a detachable front base cover 12a for protecting the front end portion and the rear end portion of the base body 11, and a rear portion. And a base cover 12b.

  More specifically, the base body 11 is formed by bending both side edges of a single sheet metal material into a substantially U-shape facing downward in a sectional view, and includes a pair of standing base side walls 111 and a base top wall 112. It is equipped with.

  A staple receiving portion 112X for receiving staple X to be struck is provided at a substantially central portion of the base top wall 112. The position of the staple receiving portion 112X is the needle placement position.

  In the present embodiment, the base body 11 is provided with a gauge mounting portion 112a (see FIG. 1) for mounting a gauge G for guiding the binding position of a paper sheet (not shown).

  The gauge mounting portion 112 a is a through hole having a longitudinal dimension in the front-rear direction, and is provided at a substantially central portion of the base top wall 112.

  The front base cover 12a is formed of a synthetic resin. The upper end portion 12a1 of the base end portion is configured to be substantially flush with the base top wall 112. Moreover, it forms in the cross-sectional view substantially partial circular arc shape from the upper end part 12a1 of a base end part toward the lower end 12a2 of a front-end | tip part.

  Note that the rear base cover 12b has substantially the same configuration as the front base cover 12a, and thus the description thereof is omitted.

  As shown in FIGS. 1, 2, 3, 4, 5, 10, and 11, the staple storage unit 2 includes an outer storage unit 21, an inner storage unit 22, and the outer storage unit 21 and the inner storage unit 21. A slider 23 that slides and moves in a gap t (see FIG. 10) formed between the housing portion 22 and a slider urging means 24 that urges the slider 23 to move toward the tip of the outer housing portion 21. And an advance / retreat guide section 25 for guiding and supporting the advance / retreat of the slider urging means 24. In the present embodiment, the outer housing portion 21 in the abutting state W2 (see FIG. 3) is placed between the outer housing portion 21 and an inner handle support portion 7 described later in the operation standby state W1 (see FIG. 2). ) Is provided with first urging means C1 for urging so as to be positioned.

  More specifically, the outer accommodating portion 21 includes a pair of standing outer accommodating portion side walls 211, an outer accommodating portion bottom wall 212, an outer accommodating portion rear piece 213, and an outer accommodating portion front wall 214. . Among these, the outer accommodating part side wall 211, the outer accommodating part bottom wall 212, and the outer accommodating part rear piece 213 are formed by bending a single sheet metal material. Further, the outer housing portion side wall 211 and the outer housing portion bottom wall 212 are formed in a substantially U shape upward in a sectional view. Further, the outer receiving portion rear piece 213 is obtained by raising the rear end edge of the outer receiving portion bottom wall 212 at a substantially right angle. Further, the outer housing front wall 214 is fixed to the front edges of the outer housing side wall 211 and the outer housing bottom wall 212 by welding.

  The inner housing part 22 is formed by bending both side edges of one sheet metal material into a substantially U shape facing upward in a sectional view, and includes a pair of standing inner housing part side walls 221 and an inner housing part bottom wall 222. Prepare. The inner housing bottom wall 222 is configured to be supported on the upward surface of the outer housing bottom wall 212.

  Further, by making the dimension between the inner housing side walls 221 smaller than the dimension between the outer housing side walls 211, a gap t is formed between the inner housing side wall 221 and the outer housing side wall 211. I try to do it. In the gap t, both legs X1 of the staple X are accommodated, and a slider 23 described later is accommodated so as to be able to advance and retreat.

  The slider 23 is formed by bending both side edges of a sheet metal material into a substantially U-shape downward in a sectional view, and includes a pair of upstanding slider side walls and a slider top wall (both not shown). Become.

  The slider urging means 24 is a coil spring that exerts an urging force in a direction in which the slider 23 is pressed toward the front end side of the outer housing portion 21, and one end portion is supported by the outer housing portion rear piece 213. The other end is supported by the slider 23.

  The advancing / retreating guide portion 25 is a steel bar having a cross-sectional shape of each part in the longitudinal direction, and one end portion and the other end portion thereof are supported by the outer accommodating portion front wall 214 and the outer accommodating portion rear piece 213. Become.

  As shown in FIGS. 1, 2, 3, 4, and 5, the inner handle 3 includes a pressing blade 31 for hitting the staple X, and an upper end side and a lower end side of the pressing blade 31. The upper inner handle 32 and the lower inner handle 33 to be supported, respectively, are arranged between the upper inner handle 32 and the lower inner handle 33, and are biased in the direction of separating the upper inner handle 32 and the lower inner handle 33. Second urging means 34, and a connecting portion 35 for connecting the lower inner handle 33 and the slider 23 of the staple storage portion 2 to each other.

  The pressing blade 31 includes a pressing blade body 311 formed from a sheet metal material, and a pressing blade support portion 312 formed of a synthetic resin that supports the proximal end side of the pressing blade body 311.

  The pressing blade main body 311 has a vertically long and substantially rectangular shape. In addition, an engagement groove 311a is provided at the center of the lower inner handle 33 so as to be slidable in the vertical direction (see FIG. 1).

  As shown in FIG. 6 and the like, the upper inner handle 32 is formed by bending both side edges of one sheet metal material into a substantially U shape downward in a sectional view, and a pair of upstanding inner handle sidewalls 321 and The upper inner handle top wall 322 and an engaged portion m2 engaged with an engaging portion m1 described later are provided.

  A distal end portion of the upper inner handle side wall 321 is provided with a pressing blade support hole 321a for swingably supporting the pressing blade support portion 312 of the pressing blade 31. A rear end portion of the upper inner handle side wall 321 is provided with a first rotation shaft through-hole 321b for inserting and supporting an inner handle rotation shaft P1 as a first rotation shaft described later. .

  The engaged portion m2 is a pin-shaped support shaft that is inserted into a through hole 321c provided in the upper end portion on the base end side of the upper inner handle side wall 321, and has a tip projecting from the upper inner handle side wall 321. Yes.

  The lower inner handle 33 is formed by bending both side edges of a sheet metal material into a substantially U-shape downward in a sectional view, and a pair of standing lower inner handle side walls 331 and a lower inner handle top wall. 332.

  The lower inner handle top wall 332 includes a protruding piece 332a protruding at the tip, and the protruding piece 332a is configured to be able to slide in the engagement groove of the pressing blade 31.

  The second urging means 34 is a coil spring that urges the upper inner handle 32 and the lower inner handle 33 in a separating direction, one end of which is supported by the inner tip of the upper inner handle top wall 322, and the like. The end is supported by the tip of the lower inner handle top wall 332.

  The connecting portion 35 is formed by bending a single sheet metal material, and has a tip end portion rotatably supported by a slider top wall (not shown) of the slider 23 and a base end portion of the lower inner member. The handle side wall 331 is rotatably supported on the base end side.

  As shown in FIG. 7 and the like, the outer handle 4 is formed by bending both side edges of a sheet metal material into a substantially U shape downward in a sectional view, and a pair of standing outer handle side walls 41 and an outer handle. And a top wall 42.

  More specifically, the outer handle side wall 41 includes a step portion 41D for making the height dimension on the distal end side smaller than the height dimension on the proximal end side at a substantially lower end side center. Further, the base end portion has a shape cut off obliquely so that the height dimension gradually decreases toward the base end side. The base end portion includes a second rotation shaft through-hole 41a that is rotatably supported by an outer handle rotation shaft 62a that is a second rotation shaft, which will be described later, and a partial circle downward when viewed from the side. And an elongated hole-like engagement portion m1 that swells in an arc shape.

  The engaging portion m1 has a peripheral portion protruding outward from the surface of the outer handle side wall 41 and a center portion penetrating in the thickness direction of the outer handle side wall 41. It is formed by processing.

  The outer handle top wall 42 is configured such that the distal end portion becomes gradually narrower toward the distal end edge. An operation force receiving portion 42 a for receiving an operation force via the handle cover 8 is provided. The operating force receiving portion 42a is configured to include a reinforcing rib 42a1 that is recessed from the upward surface of the outer handle top wall 42 to the downward surface side. When the stapler SP is positioned in the contact state W2 and the pushed-in state W3, that is, when the staple X is hit, the reinforcing rib 42a1 is positioned closer to the use end than the staple receiving portion 112X. It is configured as follows.

  The interlocking operation means 5 is constituted by the engaging portion m1 of the outer handle 4 and the engaged portion m2 of the inner handle 3.

  Then, the engagement portion m1 and the engaged portion m2 are always engaged with each other, so that the operation standby state W1 (see FIG. 2), the contact state W2 (see FIG. 3), the push-in state W3 (see FIG. 4), and In any state of the open state W4 (see FIG. 5) (a state in which the staple X can be taken in and out of the staple storage unit 2), the inner handle 3 and the outer handle 4 are in a state in which the interlocking operation is possible.

  As shown in FIG. 8 and the like, the outer handle support portion 6 is formed by bending both side edges of a sheet metal material into a substantially U-shape when viewed in cross section. A standing wall 62 erected substantially at a right angle from the side edge, and a front erected piece 63 and a rear erected piece 64 erected substantially at a right angle from the front and rear edges of the bottom wall 61 are provided.

  The bottom wall 61 includes an attachment hole 61a for attaching the base portion 1 and an inner handle support portion 7 described later, and positioning means 61b for determining an attachment position with respect to the base portion 1. The positioning means 61b protrudes downward from the bottom wall 61. Then, it is formed in a substantially circular shape in plan view so as to be positioned in a positioning guide means (not shown) having a substantially circular shape in plan view provided on the top wall of the base portion 1.

  The standing wall 62 is formed by inclining a part of the front edge and a part of the rear edge so that the width dimension is gradually narrowed toward the upper end part side, and the upper end part is formed in a partial arc shape. An outer handle rotating shaft 62a, which is a second rotating shaft, is provided at substantially the center of the upper end portion of the upright wall 62.

  More specifically, the outer handle rotating shaft 62a is for supporting the second rotating shaft through hole 41a provided at the base end portion of the outer handle in a rotatable and non-detachable manner, It protrudes between the standing walls 62, and in this embodiment, it is formed integrally with the standing walls 62 and the like by burring.

  As shown in FIG. 9 and the like, the inner handle support portion 7 is formed by bending both side edges of a sheet metal material into a substantially U-shape when viewed in cross section. And a standing wall 72 that is erected at a substantially right angle from the side edge.

  The bottom wall 71 includes an attachment hole 71 a for attaching the inner handle support portion 7 and the base portion 1 via the attachment hole 61 a of the outer handle support portion 6.

  The standing wall 72 has a substantially rectangular shape in side view, and is partially cut away obliquely from the rear of the upper edge to the rear edge.

  The rear end portion is provided with a through hole 72a for pivotally supporting the inner handle pivot shaft P1.

  Here, the inner handle rotation shaft P1 will be described. The inner handle rotation shaft P1 is made of steel having a substantially columnar shape, and the dimension r1 in the longitudinal direction is set to the outer handle portion. 6 and shorter than the dimension r2 between the upright walls 62 (see FIG. 11).

  Further, the first abutting portion 721 and the second abutting portion for pressing and holding the outer accommodating portion side wall 211 of the staple accommodating portion 2 that protrudes inward on the inner side surface of the standing wall 72 are provided. 722 is provided. The first contact portion 721 has a substantially circular shape when viewed from the side. The second contact portion 722 has a vertically long and substantially rectangular shape in side view. The first contact portion 721 and the second contact portion 722 are formed by half piercing (step pressing) processing.

  The handle cover 8 includes a cover main body 81 supported by the outer handle 4 and a cover gripping portion 82 supported by the cover main body 81. The cover main body 81 and the cover gripping portion 82 are formed separately from each other by a synthetic resin. In addition, they can also be formed integrally.

About the stapler SP comprised as mentioned above, the usage method is demonstrated below.
(1) Needle strike operation First, it is assumed that the stapler SP receives the operation force F in the direction of the arrow when it is in the operation standby state W1 as shown in FIG.

  Then, the outer handle 4 that has received the operating force F via the handle cover 8 starts to rotate about the outer handle rotation shaft 62a, and the tip end approaches the base portion 1. Then, the engaged portion m2 of the inner handle 3 is guided to the engaging portion m1 of the outer handle 4, that is, interlocked, and the inner handle 3 begins to rotate about the inner handle rotation axis P1, The tip portion approaches the base portion 1.

  At this time, since the pressing blade 31 of the inner handle 3 presses the staple X in the staple storage unit 2, both the inner handle 3 and the staple storage unit 2 rotate and come into contact with each other as shown in FIG. State W2 is entered.

  When the outer handle 4 further receives an operating force F as shown in FIG. 3 via the handle cover 8, the outer handle 4 further rotates about the outer handle rotation shaft 62a as a rotation center, The part approaches the base direction.

  Also at this time, since the engaged portion m2 of the inner handle 3 is guided by the engaging portion m1 of the outer handle 4, that is, the interlocked operation is performed, the inner handle 3 is pivoted about the inner handle rotation axis P1. Then, the rotation is further performed, and the tip end portion approaches the base portion 1 further. Here, since the leading end portion of the staple storage unit 2 is already in contact with the base unit 1, the staple X stored in the staple storage unit 2 contacts the push blade 31 of the inner handle 3 approaching the base unit 1. It is pushed out, and it will be in the pushing state W3 shown in FIG.

  In the above-mentioned contact state W2 to the pushed-in state W3, the inner handle rotation shaft P1 and the outer handle rotation shaft 62a are both fixed, and the engaging portion m1 and the engaged portion m2 which are the interlocking operation means 5 are provided. Thus, the outer handle 4 that rotates about the outer handle rotating shaft 62a acts as a transmission means that pushes the inner handle 3 into the base portion 1 side. Further, in the pushed state W3, the other end of the engaging portion m1 Since the portion m1b and the engaged portion m2 are prevented from coming into contact with each other, a boosting effect can be obtained thereby, and the staple X can be driven with a strong force.

If the operation force F is released from the stapler SP, the first biasing means C1 provided between the staple storage unit 2 and the base unit 1 and the inner handle 3 and the staple storage unit 2 are provided. The provided second urging means 34 act respectively, and the staple storage portion 2 and the inner handle 3 return to the operation standby state W1 shown in FIG. Will return to the operation standby state W1.
(2) Staple X accommodation operation First, when the stapler SP is in the operation standby state W1 as shown in FIG.

  Then, the outer handle 4 that has received this reverse operating force via the handle cover 8 starts to rotate about the outer handle rotating shaft 62a, and the tip portion starts to move away from the base portion 1. . Then, the engaged portion m2 of the inner handle 3 is guided to the engaging portion m1 of the outer handle 4, that is, interlocked, and the inner handle 3 begins to rotate about the inner handle rotation axis P1, The tip part moves away from the base part 1.

  At this time, since the first contact portion and the second contact portion of the inner handle support portion 7 press the outer storage portion side wall 211 of the staple storage portion 2, the staple storage portion 2 remains in place. The inner handle 3 is further rotated.

  When the inner handle 3 moves away from the staple storage unit 2 in this way, the connecting portion 35 of the inner handle 3 pulls the slider 23 of the staple storage unit 2 toward the proximal end side of the staple storage unit 2.

  As shown in FIG. 5, the outer handle 4 and the inner handle 3 are, as shown in FIG. 5, a distal end portion of the staple accommodating portion 2, a proximal end portion of the staple accommodating portion 2, or a proximal end portion of the second handle portion, and When the slider 23 is positioned in the open state W4 so that the angle connecting the three points of the distal end portion of the second handle portion is 90 degrees or more, the slider 23 is attracted to the proximal end portion of the staple storage portion 2, and the staple The staple X can be suitably put in and out of the gap part t of the storage part 2.

  In this opened state, the engaged portion m2 and the one end portion m1a of the engaging portion m1 come into contact with each other, so that the distal end portion of the inner handle 3 and the distal end portion of the outer handle 4 in the opened state are in contact with the staple storage portion 2. Against further opening up.

  As described in detail above, according to the stapler SP of the present embodiment, the proximal end portion of the outer handle 4 is rotated by the outer handle rotation shaft at a position closer to the staple receiving portion 112X than the inner handle rotation shaft P1. The inner handle rotating shaft P1 and the outer handle rotating shaft are both fixed to the staple receiving portion 112X, and the interlocking operation means 5 is moved from the pushed-in state W3 to the released state. Over W4, the inner handle 3 and the outer handle 4 are always in an interlockable state, so that the operability, durability, and fracture resistance are improved, and a strong boosting effect can be added.

  Moreover, since the outer handle rotation shaft 62a is formed integrally with the outer handle support portion 6, the number of members can be reduced.

  Further, the outer handle support portion 6 is formed in an upward U-shape, the outer handle rotation shaft 62 a is formed so as to protrude between the standing walls 62 of the outer handle support portion 6, and the base end of the outer handle 4 The outer handle pivot shaft 62a that protrudes between the upright walls 62 is rotatably supported, so that the mounting portion of the outer handle 4 and the outer handle pivot shaft 62a is connected between the upright walls 62. The appearance can be improved. Furthermore, it is possible to prevent the attachment portion between the outer handle 4 and the outer handle rotating shaft 62a from interfering with the handle cover 8 and the like, and the design of the handle cover 8 and the like becomes easy.

  In addition, since the length r1 of the inner handle rotation shaft P1 in the longitudinal direction is shorter than the size between the standing walls 62 of the outer handle support portion 6, the inner handle rotation shaft P1, the handle cover 8, and the like Interference with other members can be prevented, and the handle cover 8 and the like can be easily designed.

  By the way, the inner handle rotation shaft P1 is inserted into the through hole 321c provided in the upper end portion on the base end portion side of the upper inner handle side wall 321, and both ends of the inner handle rotation shaft P1 are connected to the inner handle support portion 7. Since it is supported by the through-hole 72a formed in the standing wall 72, the strength can be ensured while simply configuring the inner handle rotation shaft P1 and the attachment portion of the inner handle 3.

  Further, since the engaged portion m2 and the one end portion m1a of the engaging portion m1 are in contact with each other in the opened state W4, the distal end portion of the inner handle 3 and the distal end of the outer handle 4 in the opened state W4. The portion can further prevent the staple storage portion 2 from opening.

  Further, the interlocking operation means 5 causes the inner handle 3 and the outer handle 4 to operate in an interlocking manner so that the distal end portion of the inner handle 3 and the distal end portion of the outer handle 4 approach each other toward the open state W4, and The angle connecting the three points of the distal end portion of the staple accommodating portion 2, the proximal end portion of the staple accommodating portion 2 or the proximal end portion of the outer handle 4, and the distal end portion of the outer handle 4 is approximately 90 degrees or more. Thus, the staple can be easily taken in and out.

  Even in the pushed-in state W3, the other end m1b of the engaging portion m1 constituting the interlocking operation means 5 and the engaged portion m2 do not come into contact with each other, so that the hitting is not hindered.

  Further, since the interlocking operation means 5 constitutes a transmission means for transmitting the operating force F to the inner handle 3 on at least the other end m1b side of the engaging portion m1, an effective boosting effect can be obtained. it can.

  In addition, the distal end portion of the outer handle 4 is positioned closer to the use end side than the pressing blade 31 when the staple X is hit, and the distal end portion of the outer handle 4 receives the operating force F. Since the operation force receiving portion 42a is provided, the staple X can be strongly struck by the lever principle.

  Further, since the operating force receiving portion 42a is provided with the reinforcing rib 42a1 that protrudes or is recessed in the same direction as the direction in which the operating force F is received, the deformation of the member can be achieved even when operated with a larger operating force. Not invited.

  The present invention is not limited to the embodiment described in detail above.

  For example, the stapler includes a staple storage unit that stores staples, a first handle unit for hitting the staples, and a second handle unit that receives an operation force for hitting the needles from the outside. A first rotation shaft that rotatably supports the housing portion and the first handle portion, and a predetermined portion of the second handle portion can be rotated at a position closer to the hitting position than the first rotation shaft. The second rotating shaft that supports the first rotating portion, the first handle portion, and the second handle portion are interlocked to operate in a state in which the staple can be driven or in a state in which the staple can be taken in and out of the staple storage portion. Operating means, the first rotating shaft and the second rotating shaft are fixed with respect to the hitting position, and the interlocking operating means is moved from the pushed-in state to the opened state. Include those constructed and said second handle portion and said first handle portion so as to always have the interlock operable state.

  In addition, the outer handle rotation shaft 62a is integrally formed with the upright wall 62 and the like by burring (see FIG. 8), but is not limited to this, and the outer handle rotation shaft and the upright wall are not limited thereto. May be configured separately. Specifically, as shown in FIG. 13, the substantially cylindrical shaft of the shaft SF provided with the flange portion SF <b> 1 in the through hole 62 x provided in the standing wall 62 and the through hole 41 x provided in the outer handle side wall 41. An example is one in which the main body SF2 is inserted and an E-ring Z is attached to the tip of the shaft SF, and an outer handle rotating shaft is set on the shaft main body SF2.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

The whole perspective view which shows the stapler in one Embodiment of this invention. The side view (operation standby state) of the stapler in the embodiment. The side view (contact state) of the stapler in the same embodiment. The side view of the stapler in the embodiment (pressed state). The side view (open state) of the stapler in the embodiment. The top view, side view, and rear view of the upper inner handle in the same embodiment. The top view, side view, and rear view of an outer handle in the same embodiment. The front view, top view, and side view of the outer handle support part in the embodiment. The front view, top view, and side view of the inner handle support part in the embodiment. Sectional drawing between AA in FIG. Sectional drawing between BB in FIG. Sectional drawing between CC in FIG. The figure which shows typically the structure cross section of the attaching part of the outer handle | steering-wheel support part in other embodiment of this invention.

Explanation of symbols

2 ... Staple container 3 ... 1st handle (inner handle)
31 ...... Push blade 321... Side wall (upper inner handle side wall)
321b... Through hole (first rotation shaft through hole)
321c ... Through hole 4 ......... Second handle (outer handle)
41 .. side wall (outer handle side wall)
42a .... Operation force receiving part 42a1 ... Reinforcing rib 5 ... Interlocking operation means 6 ... Second handle support part (outer handle support part)
62... Standing wall 62 a... Second rotation axis (outer handle rotation axis)
7 ········ First handle support (inner handle support)
72 ... Standing wall 72a ... Through hole F ... Operating force m1 ... Engagement part m2 ... Engagement part m1a ... ... Engagement One end portion m1b of the portion m1... The other end portion P1 of the engaging portion m1... First rotation shaft (inner handle rotation shaft)
SP: Stapler W1: Operation standby state W3: Push-in state W4: Open state X: Staple

Claims (15)

A staple storage unit for storing staples;
A first handle portion provided at the tip with a pressing blade for hitting the staple;
A stapler comprising a second handle portion for receiving an operating force for hitting from the outside,
A first pivotally supporting a proximal end portion of the staple accommodating portion and a proximal end portion of the first handle portion so as to open and close the distal end portion of the staple accommodating portion and the distal end portion of the first handle portion. A pivot axis;
In order to move the distal end portion of the second handle portion toward and away from the needle hitting position for hitting the staple, the base end portion of the second handle portion is closer to the needle hitting position than the first rotation shaft. A second pivot shaft rotatably supported at a position;
The distal end portion of the first handle portion and the distal end portion of the second handle portion are moved closer to the needle firing position than in the operation standby state, and the staple can be pushed in, or in the counter needle firing position side from the operation standby state. Interlocking operation means for interlockingly operating the first handle portion and the second handle portion so that the staple can be positioned in an open state in which the staple can be moved into and out of the staple storage portion;
The first rotation shaft and the second rotation shaft are fixed with respect to the hitting position,
The stapler, wherein the interlocking operation means is configured so that the first handle portion and the second handle portion can always operate interlockingly from the pushed-in state to the open state.   The stapler according to claim 1, wherein the second rotation shaft rotatably supports the second handle portion so as not to be attached or detached.   The stapler according to claim 1 or 2, wherein the second rotation shaft is formed integrally with a second handle support portion for supporting the second handle portion. The second handle support portion is formed in an upward U-shape,
A second rotation in which the second rotation shaft is formed so as to protrude between the standing walls of the second handle support portion, and the base end portion of the second handle portion is protruded between the standing walls. The stapler according to claim 3, wherein the shaft is rotatably supported. The first rotation shaft is formed in a substantially cylindrical shape,
The stapler according to claim 4, wherein the longitudinal dimension is shorter than the dimension between the upright walls of the second handle support part. Comprising a first handle support portion formed in an upward U-shape for supporting the first rotation shaft,
While inserting the first rotation shaft through a through hole formed in the side wall of the base end portion of the first handle portion,
The stapler according to any one of claims 1 to 5, wherein both end portions of the first rotation shaft are supported by through holes formed in a standing wall of the first handle support portion. The interlocking operation means includes a long hole engaging portion and an engaged portion that moves in the engaging portion while engaging with the engaging portion,
The stapler according to any one of claims 1 to 6, wherein one of the engaging portion and the engaged portion is provided in the first handle portion, and the other is provided in the second handle portion. .   When the engaged portion and the one end portion of the engaging portion come into contact with each other, the distal end portion of the first handle portion and the distal end portion of the second handle portion that are in a predetermined state are further opened with respect to the staple accommodating portion. The stapler according to claim 7, wherein the stapler is prevented. The predetermined state is an open state in which the staples can be taken in and out of the staple storage unit,
Toward the open state, the interlocking operation means keeps the tip portion of the first handle portion and the tip portion of the second handle portion in proximity to each other, the first handle portion and the second handle portion. And an angle connecting three points of the distal end portion of the staple accommodating portion, the proximal end portion of the staple accommodating portion or the proximal end portion of the second handle portion, and the distal end portion of the second handle portion. The stapler according to claim 8, wherein the angle of the stapler is approximately 90 degrees or more. The first handle portion and the second handle portion each have a pair of side walls,
The engaging portion is a long hole penetrating the side wall of the second handle portion, and the engaged portion is a support having both end portions projecting from through holes formed in both side walls of the first handle portion. The stapler according to claim 7, wherein the stapler is a shaft. When the first handle part and the second handle part are guided by the interlocking operation means into a pushed-in state in which the staple is pushed by the pushing blade and can be struck,
The stapler according to any one of claims 7 to 10, wherein the other end portion of the engaging portion and the engaged portion are substantially in contact with each other.   12. The stapler according to claim 11, wherein the interlocking operation means constitutes a transmission means for transmitting the operating force to the first handle portion on at least the other end side of the engagement portion. The distal end portion of the second handle portion is positioned closer to the use end side than the pressing blade when the staple is hit,
The stapler according to any one of claims 1 to 12, wherein an operation force receiving portion for receiving the operation force is provided at a distal end portion of the second handle portion.   The stapler according to claim 13, wherein the operating force receiving portion includes a reinforcing rib that protrudes or is recessed in substantially the same direction as the direction of receiving the operating force. A staple storage unit for storing staples;
A first handle for striking the staple;
A stapler comprising a second handle portion for receiving an operating force for hitting from the outside,
A first rotation shaft that rotatably supports the staple storage portion and the first handle portion;
A second rotation shaft that rotatably supports a predetermined portion of the second handle portion at a position closer to the needle hitting position than the first rotation shaft;
An interlocking operation means for interlocking the first handle portion and the second handle portion in a state where the staples can be stapled or in a state where the staples can be taken in and out of the staple accommodating portion;
The first rotation shaft and the second rotation shaft are fixed with respect to the hitting position,
The stapler, wherein the interlocking operation means is configured so that the first handle portion and the second handle portion can always operate in an interlocking manner from the pushed-in state to the released state.

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