JPWO2006046310A1 - Cassette type stapler - Google Patents

Abstract

In the flat clinch type stapler, when the slider slides backward on the base, the swing member is prevented from being lowered, the swing member is lowered, and the leg portion of the staple penetrating the paper is bent flat. The mechanism for performing the back-and-forth movement of the slider on the base by the vertical movement of the handle is simplified.

Description

  The present invention relates to a stapler capable of bending a leg portion of a staple needle flatly along a lower surface of the sheet bundle when a sheet bundle in which a plurality of sheets are stacked is bound by a staple needle, that is, a flat clinch type stapler.

  There are the following documents regarding flat clinch type staplers.

Japanese Utility Model Sho 62-35779 Akira 62-35780 Shokai 62-92173 JP-A-1-84982 1-1-3379 JP-A-1-295769 4-112784 JP 2001-191264 A

  In any of the above, binding is performed in two stages, that is, a stage in which the leg portion of the staple needle breaks through the sheet bundle and a stage in which the leg section that has broken through the sheet bundle is bent. In the first stage, when the handle is pushed down, the handle and the needle box in which the needle is installed are brought close to each other, and when the handle is further pushed down, the blade provided inside the handle pushes out the needle in the needle box. Legs break through the sheet bundle. At this time, the swinging member is held down by a member (slider) that prevents the sheet receiving member (swinging member) from being lowered, and the blade cannot reach the anvil. Only breaking through the bundle is done. When the first stage is completed, the process proceeds to the second stage, that is, the slider is retracted to release the swinging member from being lowered, and the leg is bent by the engagement of the swinging member and the anvil.

  Then, after the end of the second stage, the state before the operation again, that is, the slider is advanced to raise the swing member relatively, and the swing member is prevented from being lowered. At this time, the advance of the slider and the rise of the swing member are obtained by providing a mechanism using a coil spring or a leaf spring, which is different from the mechanism for lowering the swing member in the above-described prior art. Has been.

  That is, in the conventional flat clinch type stapler, the movement of the handle is transmitted to the slider via a plurality of parts added to the handle, the frame, the magazine and the like. Further, when the slider is moved backward to lower the swing member, the lowering motion of the handle is transmitted to the slider, but a mechanism for raising the swing member uses a plurality of springs, pins, and rivets.

  This complicates the configuration of the stapler and inevitably increases the number of essential parts.

  Flat clinch-type staplers are popular in the market, but as described above, the structure is complicated and there are many essential parts, so the manufacturing process becomes complicated, the product must be expensive, and it is difficult to fully disseminate. It was.

  Further, the complexity of the configuration and the large number of component parts have caused the product to fail.

It also made it difficult to maintain a stable needle strike.

  In addition, it has become necessary to spend money and labor to maintain the accuracy of each part. If the accuracy of each component is insufficient, a single component accuracy error is converted into an error in which the number of components is stacked, so that a serious defect may occur.

  In addition, a plurality of springs are used to return the slider and the swinging member to their original positions, and the force of these springs may act in the direction of pushing up the handle when hitting the needle. As a result, there is a problem that the resistance when the handle is pushed down increases.

  The present invention provides a stapler capable of bending a staple needle leg portion flatly along a lower surface of the sheet bundle when a sheet bundle in which a plurality of sheets are laminated is bound by a staple needle. The structure of the stapler is simplified by simplifying the mechanism for returning the slider to the original position after it is bent flat, and since it is possible to make such a simple mechanism, there are few clinch failures. The task is to obtain a good quality product.

  As described above, the configuration is simple and the number of essential parts is small. As a result, it is an object to provide a product with a simple manufacturing process and an inexpensive price.

  Another object of the present invention is to provide a product that has a simple configuration and is less likely to fail because of a small number of components.

  It is another object of the present invention to provide a product that can maintain stable needle driving.

  Another object of the present invention is to provide a product that can reduce the number of parts and reduce the time spent maintaining the precision of the parts.

  According to another aspect of the present invention, a base mechanism having an anvil mechanism, a staple box mechanism pivotally attached to the base mechanism, and a handle mechanism pivotally attached to the base mechanism and provided above the staple box mechanism and including a blade. And a flat clinch mechanism, wherein the flat clinch mechanism has a swing member and a slider, and a leg portion of the staple loaded in the staple box mechanism penetrates the sheet bundle by lowering the blade. During the interval, the slider exists below the swinging member to prevent the swinging member from descending, and when the slider is removed from below the swinging member, the blockage of the swinging member is released. When the swinging member descends, the tip of the leg of the staple through which the blade penetrates the sheet bundle is the end of the anvil mechanism. The staple is pushed out so as to reach a position to be moved, and the staple leg is bent by the engagement between the staple leg and the anvil mechanism, so that the staple binds the sheet bundle. In a stapler in which the swinging member is raised and the slider is present below and the swinging member is prevented from descending again, the slider slides on the base in one longitudinal direction. The release of the swinging member is released and the swinging member is lowered, and the swinging member is lifted by sliding the slider on the base in the front-rear direction. The prevention of the lowering of the handle is resumed, and the means for sliding the slider in one direction and the means for sliding in the other direction slide the movement of the handle in the vertical direction. It is one of the mechanisms allowed to change in the longitudinal direction of movement of the over solving the problem by stapler according to claim.

  The staple box mechanism is a box-shaped mechanism loaded with staples. A staple is provided in the stapler main body, and when the loaded staple is used up, a staple is newly loaded, and the staple main body is provided with a holder for receiving the staple. When the cartridge is used up, both types of cassettes loaded with staples loaded in a holder, that is, cassette-type ones, are targets.

  The present invention is characterized by a flat clinch mechanism, particularly a slider sliding mechanism. That is, when the slider slides on the base in one longitudinal direction, the swing member is prevented from being lowered and the swing member is lowered. In the conventional mechanism, such sliding of the slider is performed by a spring or the like that is provided in the slider and dedicated to the sliding of the slider.

  Further, when the slider slides on the base in the front-rear direction or the other direction, the swinging member rises and the swinging member is prevented from descending again. In the conventional mechanism, the sliding of the slider is performed by a mechanism such as a spring provided in the slider as described above. Further, sliding of the slider did not cause the swing member to rise. However, in the present invention, the slider slides in the direction opposite to the “one direction”, that is, the “other direction”, so that the slider sinks under the swinging member and lifts the swinging member. This eliminates the need for a mechanism such as a spring that lifts the swinging member, which was conventionally required.

  Further, the means for sliding the slider in one direction and the means for sliding in the other direction constitute a mechanism for changing the vertical movement of the handle to the movement of the slider in the front-rear direction.

  One direction here is, for example, the front, and when one direction is the front, the other direction is the rear. If one direction is backward, the other direction is forward.

  The vertical movement of the handle is a movement that occurs when the user grips and pushes down the handle when the staple is used, and the handle is lifted by the handle spring. Such a vertical motion is changed to a longitudinal motion of the slider by one mechanism. When the handle is further lifted upward by the handle spring by the one mechanism, the vertical movement is changed by the one mechanism to the front-back movement of the slider, and the slider slides on the base. Then the slider returns to the original position. When the slider returns to the original position, it means that the slider returns to a position that prevents the swinging member from descending.

  In other words, in the prior art, the movement of the slider in the front-rear direction and the movement of the swinging member in the vertical direction are performed by a spring mechanism provided for that purpose, whereas in the present application, such a spring mechanism is not necessary.

  As a result, the number of parts can be reduced. Also, the assembly process can be reduced. Therefore, the performance of the product is greatly improved. In addition, the cause of failure is reduced.

  According to a second aspect of the present invention, the handle includes a first handle guide portion and a second handle guide portion, and the slider includes a first slider guide portion and a second slider guide portion. When the first handle guide part and the first slider guide part are engaged with each other by lowering, the lowering movement of the handle is changed to a movement of sliding the slider in one direction. 2. The stapler according to claim 1, wherein the movement of the handle that moves upward by engaging the two slider guide portions is changed to a movement of sliding the slider in the other direction. To do.

  The first handle guiding portion is a portion that transmits the downward movement to the slider when the handle is lowered. For example, reference numerals 37 (FIG. 2), 89 (FIG. 19), and 96 (FIG. 27) shown in the drawings described later. ) Corresponds to this. At this time, the first slider guide part receives the downward movement of the handle. For example, 21 (FIG. 3), 74 (FIG. 18), and 109 (FIG. 26) shown in the drawings described later correspond to this.

  When the handle starts to descend, the first handle guide portion is first engaged with the first slider guide portion. The first handle guide portion continues to apply a force in the direction in which the slider is lowered by the lowering of the handle. At this time, the first handle guide member has a characteristic guide surface, and the handle is lowered. The movement in the direction is changed to the movement in the direction in which the slider moves backward.

  The second handle guiding portion is a portion that transmits the ascending motion to the slider when the handle is raised. For example, reference numerals 36 (FIG. 2), 90 (FIG. 21), and 97 (FIG. 27) shown in the drawings described later. This is the case. At this time, the second slider guide part receives the upward movement of the handle. For example, reference numerals 20 (FIG. 14), 79 (FIG. 21), 114 (FIG. 26), 115 (FIG. 34) shown in the drawings described later. Corresponds to this.

  When the handle starts to rise, first, the second handle guide portion is engaged with the second slider guide portion. The second handle guide part continues to apply a force in the direction in which the convex body rises as the handle is raised. At this time, the second handle guide member has a characteristic guide surface, The movement in the direction in which the font rises is changed to the movement in the direction in which the slider moves forward.

  The first handle guide portion and the second handle guide portion may be provided as voids in the handle itself, or may be provided protruding from the right side surface and the left side surface of the handle. Moreover, you may provide in the leg part of a handle | steering-wheel. The shape of the first handle guide portion and the second handle guide portion may be, for example, a quadrangle, a circle, or the like. The slider guide portion and the second handle guide portion may be provided directly in the state of the notch or protrusion in the main body portion of the slider.

  According to a third aspect of the present invention, the first handle guide portion and the second handle guide portion are both provided on a leg portion of the handle, and the first slider guide portion and the second slider guide portion are both provided on the slider. The problem is solved by the stapler according to claim 2.

  The leg portion of the handle is a member protruding like a leg below the handle. The shape below the leg is not limited to a square, but may be a triangle, a sphere, or the like. The shape of the slider guide portion corresponds to the shape of the leg so that the first handle guide portion and the first slider portion can be engaged, and the second handle portion and the second slider portion can be engaged. .

According to a fourth aspect of the present invention, the first handle guide portion is a rear end of the lower end of the leg portion of the handle, and the second handle guide portion is a front end of the lower end of the leg portion of the handle, 4. The slider guide part is a front surface of a first protrusion provided behind the slider, and the second slider guide part is a rear surface of a second protrusion provided behind the slider. The problem is solved by the stapler described in 1.

  Claim 4 assumes that the leg is shaped like a boot. The heel portion of the boots becomes the first handle guide portion, and the toe portion becomes the second handle guide portion. In order to prevent damage, these guide parts should have rounded corners rather than sharp edges.

  Two pairs of protrusions extending upward are arranged at the back and front of the slider. The rear surface of the front protrusion constitutes the second slider guide part, and the front surface of the rear protrusion constitutes the first slider guide part. The position and shape of the two pairs of protrusions and the shape of the leg portion of the handle change the vertical motion of the handle to the longitudinal motion of the slider.

  In Claim 5, said 1st handle | guide guide part and said 2nd handle | guide guide part are the internal peripheral surfaces of the opening provided in the said handle | steering-wheel, and said 1st slider guide part and said 2nd slider guide part have one end. The problem is solved by the stapler according to claim 2, wherein the staple is fixed to the slider and the other end is in a protruding portion of the convex body that engages with a stopper fixed to the base.

  The inner peripheral surface of the opening provided in the handle has a characteristic shape, and this shape changes the vertical movement of the handle to the movement of the slider in the front-rear direction.

  The “convex body” refers to a shape in which a central portion protrudes, such as a shape in which an arc is drawn like a bow or a shape like a Λ character. The “projected portion of the convex body” means a portion near the center in the case of an arcuate shape, and a peak portion of a mountain that is bent into a Λ shape in the case of a Λ-shaped shape.

  According to a sixth aspect of the present invention, the first handle guide portion is a surface above the inner peripheral surface of the opening, the second handle guide portion is a surface below the inner peripheral surface of the opening, and the convex body is Λ. 6. The font according to claim 5, wherein the first slider guide part is located on an outer corner of the vertex of the Λ font, and the second slider guide part is located on an inner corner of the vertex of the Λ font. The problem is solved by the stapler.

  The bent portion refers to the position of the bent vertex of the Λ font. One end of the [Lambda] font is fixed to the slider, and the other end of the [Lambda] font is a free end. This free end is engaged with a stopper fixed to the base. When the handle is lowered, the outside of the bent vertex of the [Lambda] font is used as the first slider guide area and engages with the 1st handle guide area and receives downward force, but the other end of the [Lambda] font is fixed to the base. Therefore, the downward force escapes in the direction of one end of the [Lambda] font fixed to the slider. As a result, the slider slides backward on the base.

  The second slider part is carried by the inner corner portion of the bent vertex of the Λ font. The second handle guide part engages with this second slider part and tries to pull up the Λ-shaped body as the handle is raised, but one end of the Λ-shaped body is fixed to the slider and the other end engages with the base stopper. Therefore, the movement to be pulled up is changed to a movement that slides the slider forward on the base.

  The stapler according to claim 5, wherein the stopper is located in front of the Λ font, and the downward movement of the handle is changed to a movement of sliding the slider backward. To solve the problem.

  In the seventh aspect, one end fixed to the Λ-shaped slider and the other end engaged with the stopper are positioned in the front-rear direction opposite to those in the sixth aspect. The movement in the direction is changed to a movement that slides the slider backward, and the upward movement of the handle is changed to a movement that slides the slider forward.

  According to an eighth aspect of the present invention, a swing member guide is provided on the lower front side of the swing member, and when the slider slides backward on the base, the upper front end of the slider follows the swing member guide. The swinging member descends most when the front upper end of the slider is positioned at the rear end of the swinging member guide, and when the slider slides forward on the base, the slider front upper end is The slider moves along the swing member guide, and the slider prevents the swing member from descending when the front upper end of the slider is positioned forward of the front end of the swing member guide. The problem is solved by the stapler according to claim 4 or 7.

  The swing member guide is a guide surface on which the corner of the slider is guided when the block by the slider is released and the swing member is lowered. The shape of this surface needs to be a shape suitable for smooth descent. Depending on the length of the leg of the staple, the height difference of the descent is different, so that the shape suitable for the smooth descent also varies. The shape of the swing member guide may be a convex surface, or a concave surface or a sigma type.

  Such a guide surface may be provided on the slider instead of the swing member. The case where the slider is provided is the ninth aspect.

  According to a ninth aspect of the present invention, a slider guide is provided on the upper side of the front end of the slider, and the guide end provided on the lower front side of the swinging member when the slider slides backward on the base is the slider guide. When the guide end is located at the front end of the slider guide, the swinging member descends most, and when the slider slides forward on the base, the guide end follows the slider guide. 5. The slider according to claim 4, wherein the slider prevents the swinging member from descending when the guide end is located behind the rear end of the slider guide. The problem is solved by the stapler according to Item 7.

  The stapler according to claim 5, wherein the stopper is located behind the convex body, and the downward movement of the handle is changed to a movement of sliding the slider forward. To solve the problem.

  The slider guide is provided above the front end of the slider. The guide end provided on the front lower side of the swing member when the slider slides forward on the base is the slider guide. When the guide end is positioned at the front end of the slider guide, the swinging member descends most, and when the slider slides backward on the base, the guide end follows the slider guide. 11. The swinging member is configured to prevent the slider from descending when the guide end is positioned behind the rear end of the slider guide. The problem is solved by the stapler.

  The first handle guide part and the second handle guide part are provided on the handle, and the first slider guide part and the second slider guide part are provided on the slider. The first handle guide part and the first slider guide part are engaged with each other via the handle-slider guide member due to the lowering, and the lowering movement of the handle is changed to the movement of sliding the slider rearward. The second handle guide portion and the second slider guide portion are engaged with each other via the handle-slider guide member, and the upward movement of the handle is changed to a movement of sliding the slider forward. The problem is solved by the stapler according to claim 1.

  The first and second handle guide members and the first and second slider guide members are engaged with each other through a separate member called a handle-slider guide member. It is a feature of the invention.

  The invention according to claim 12 is characterized in that the degree of freedom in designing the stapler is increased by using a separate member. When the handle-slider guide member is used, the slider sliding distance can be lengthened or shortened by adjusting the length of the leg of the handle-slider guide member according to the lever principle. In addition, the size of the handle stroke and the size of the handle can be obtained by adjusting the length of the legs, so that the degree of freedom in design is high. Accordingly, it is easy to cope from a small stapler to a large stapler for thick binding.

  In Claim 13, the said handle-slider guide member is pivotally supported by the base pillar provided in the base, and said 1st handle guide part and said 2nd handle guide part are the inner periphery of the opening provided in the said handle | steering-wheel. One end of the handle-slider guide member is engaged with the inner peripheral surface, and the first slider guide part and the second slider guide part exist in a notch provided in the slider, The problem is solved by the stapler according to claim 12, wherein the other end of the handle-slider guide member is engaged with the notch.

  Since the inner peripheral surface of the opening provided in the handle has a characteristic shape, one end of the handle-slider guide member engages with the inner peripheral surface, and the handle is guided along a locus along the inner peripheral surface. The vertical motion of the slider is changed to the longitudinal motion of the slider.

  Since a spring for sliding the slider back and forth and a spring for maintaining the swinging member upward are unnecessary, the number of parts can be reduced. Also, the assembly process can be reduced. As a result, the performance of the product is greatly improved. In addition, the cause of failure is reduced.

  Conventionally, when the swinging member is detached from the holder, the user feels an impact of “batching”, but such impact is greatly reduced by the guide surface provided on the swinging member or the slider.

  Since the slider and the swinging member are always in contact with each other by the guide surface, the needle hitting performance can be smoothed.

  The guide surface provided on the slider or the swinging member eliminates the need for a spring for returning the swinging member to the original position after hitting. Therefore, without using both the spring for returning the slider back and forth and the spring for returning the oscillating member to the original position, which was essential for all flat clinch staplers so far, the original function is further improved. Can be demonstrated reliably. Since the resistance by the spring is small, the force at the time of striking can be reduced.

  The inventions described in Examples 1 to 7 are all the best modes for carrying out the invention.

  A first embodiment is shown in FIGS. In the first embodiment, the contact between the leg of the handle and the rear part of the slider changes the movement of the lowering of the handle to the movement of the slider sliding in the front-rear direction. During clinching, the slider slides backward, and a guide surface for gently lowering the swinging body is provided on the swinging body.

  In this specification, claims and drawings, the side where the blade in the longitudinal direction of the stapler shown in FIG. 1 exists is the front, the direction where the handle and the base are fixed is the rear, the side where the handle is located is the upper, The existing side is the lower side, the right side when viewed from above is the right side, and the left side when viewed from above is the left side.

  1 to 5, the stapler 1 includes a base 2, a slider 4, a rocking body 5, a base cover 3, a staple case 8, a frame 6, and a handle 7. A handle spring 40 is provided inside the handle and biases the handle away from the frame. A base spring 43 is provided on the lower side of the frame and biases the base away from the frame. A staple case spring 42 is provided at the rear of the staple case, and urges the staple case in a direction to push it forward. In FIG. 1, it is assumed that cassette-type staples, that is, replenishment and replacement of needles are performed by taking in and out a cassette loaded with staples. Therefore, a staple case spring 42 is provided. Also, staples that replenish only the staples in the staple case without taking in and out the staple case are also targeted. In the case of a stapler that is not a cassette type, the staple case spring 42 is not necessary.

  Referring to FIG. 3, an anvil base 10 is provided in front of the base 2, and an iron anvil 11 is fitted at this position. A pair of oscillating body bases 12 are provided behind the base 2, and an oscillating body support shaft 13 is provided on the oscillating body base 12. The base 2 is provided with a pair of slider guides 14 in the long axis direction.

  Referring to FIG. 3, the slider 4 has a void 16 in the front. The void 16 is provided to avoid the anvil 11 for hitting when the stapler is assembled. The slider 4 has a void 22 at the rear. The void 22 is provided to avoid the oscillator base 12 when the stapler is assembled. A mechanism for guiding the handle leg is provided behind the slider 4. That is, a handle leg guide 18 extending upward and a handle leg guide 19 extending upward are provided. Guide surfaces 20 and 21 formed by the respective leg guides guide the handle leg 35 as described later.

  4 and 5, the slider 4 is placed on the base such that the left and right outer walls are positioned along the slider guide 14 of the base 2.

  Referring to FIG. 3, the rocking body 5 has legs 25 on the rear side. A hole 26 is provided in the leg 25. The hole 26 corresponds to the oscillating body support shaft 13 provided in the oscillating body base 12 of the base 2 when the oscillating body is attached to the base (FIG. 4).

Referring to FIGS. 4 and 5, the slider 2 and the swinging body are attached to the base 2, and then the base cover 3 is covered, and the frame 6 is mounted. Thereafter, the rear end of the handle is further pinned or pivoted to the frame to complete the stapler.

  6 to 12 show changes in the positional relationship between the handle, the swinging body, and the slider when the needle is hit. FIG. 13 is a partial cross-sectional explanatory diagram showing changes in the positional relationship including the positional relationship of the staple case at the time of hitting.

  When the handle is not operated, that is, when the handle is raised, as shown in FIG. 6, since the leg front end 36 of the handle leg 35 is engaged with the guide surface 20 of the handle leg guide 18 of the slider 4, the slider 4 is It is located at the forefront, and at this time, the lowering of the rocking body 5 is stopped.

  As shown in FIG. 7, when the handle 7 is slightly lowered, the rear leg end 37 of the handle leg 35 engages with the guide surface 21 of the handle leg guide 19 of the slider 4. At this time, the positional relationship between the staple case and the staple case is as shown in FIGS. 13A to 13C. The staple case 8 is in contact with the swinging body, and the staple legs break through the sheet bundle. .

  As shown in FIG. 8, when the handle is further lowered, the leg rear end 37 of the handle leg 35 pushes the guide surface 21 of the handle leg guide 19 rearward, so that the slider 4 slides slightly backward. At this time, the positional relationship with the staple case is as shown in FIG. 13D, and the bending of the staple is about to start.

  As shown in FIG. 9, when the handle is further lowered, the slider 4 slides further backward and descends along a curve provided on the lower surface of the rocking body. When the swinging member is lowered most, the staple is bent flat along the back surface of the sheet. At this time, the state shown in FIG.

  As shown in FIG. 10, when the hand is released from the handle, the handle is lifted upward by the handle spring (FIG. 1), and when the handle is raised, the leg front end 36 of the handle leg 35 faces the guide surface 20 of the slider 4 forward. The slider 4 slides forward a little.

  As shown in FIG. 11, when the handle is further lifted, the leg front end 36 of the handle leg 35 pushes the guide surface 20 of the slider further forward, and the rocking body 5 follows the curve provided on the bottom surface of the rocking body. Get on the slider 4. As shown in FIG. 12, when the handle is further lifted, the rocking body 5 is completely on the slider 4. Thereafter, the handle is further lifted to return to the state shown in FIG.

  The effect of Example 1 is as follows.

  Since the handle and the slider are directly engaged, it is possible to reliably prevent the swinging member from descending until the tip of the needle breaks through the sheet bundle and the back of the needle contacts the sheet bundle.

  Since the slider and the swing member are always in contact with each other by the guide surface provided on the swing member, no impact or noise is generated. Further, the best flat clinch effect can be expected according to the type of the needle, the length of the needle foot, the hardness of the needle, and the like, and the one with good needle punching performance can be obtained.

  Since no spring is used to move the slider and the swing member, there is no resistance due to the spring. Also, since the needle box always presses the swinging member downward when the needle is struck, in addition to the function of the device that slides the slider provided on the handle, the curve of the swinging member or a small radius is directly present. A force that slides the slider backward or forward is generated. As a result, the force of pressing the handle when the needle is hit is reduced.

  Since the swing member is pivotally supported by a bearing integrally formed with the base, parts such as pins are not required, and as a result, assembly is facilitated and failure is reduced.

  Since the slider is simply placed on the base 2 at the time of manufacture, assembly becomes easy and failure is reduced.

  Since the slider is integrally formed with the base such as a slider guide integrally formed on the base or a base such as an anvil base and an oscillating body base, and the position can be established by a guide device with complete accuracy, the slider can automatically slide stably.

  Since it is easy to adjust the sliding distance of the slider, the product design according to the foot length of the needle becomes easy.

  A second embodiment is shown in FIGS. In the second embodiment, the mechanism for changing the vertical movement of the handle to the longitudinal movement of the slider is the same as that of the first embodiment, but the guide surface for gently lowering the rocking body is not in the rocking body but in the slider. Is a point.

  The effect of Example 2 is as follows.

  Since the tip of the slider (the one closer to the blade) is in firm contact with the base 2, the operation of the swing member is stabilized. Since the operation of the swinging member is stable, it is more effective for relatively thick paper bundles. Since the slider has high stability, the durability of the swing member is greatly improved.

  A third embodiment is shown in FIGS. Example 3 uses a mechanism with a stopper provided on the base and a Λ-shaped body provided on the slider, and when clinching, the slider slides backward, and the guide surface for gently lowering the oscillator is provided on the oscillator. It is provided.

  As shown in FIGS. 17 and 18, one end 77 of a Λ-shaped body 76 is attached to the slider 75 at the rear end of the slider 75. The front end of the Λ font 76 is a free end.

  A stopper 82 is fixed to the base 2, and the slider 75 is placed at a position where the free end in front of the Λ-shaped body is in contact with the stopper 82. Further, when the slider is placed on the base 2, the oscillating body attached to the base is brought into contact with the slider as shown in FIGS.

  As shown in FIG. 26, the rocking body is fixed to the base cover 3 at a portion indicated by reference numeral 112. 26 shows the fourth embodiment, the third embodiment and the fourth embodiment are the same with respect to the positional relationship between the oscillator and the base cover.

  The mechanism at the time of the action of the stapler shown in the third embodiment is as shown in this order in FIGS. That is, a space 88 is formed by a handle guide member 87 provided on the handle member 7, and a guide shaft 79 of a Λ character is engaged with this space 88. By rotating the handle 7 downward, the [Lambda] font apex 74 engages the inner wall 89 above the void 88, thereby exerting a force in the direction in which the [Lambda] font leg expands. The front end of the [Lambda] font is engaged with the stopper 82 of the base 2, and the [Lambda] font is attached to the slider 75, so that the slider 75 slides backward on the base 2 (see FIG. 19). 21) Lower the swinging member (FIG. 22). Thereafter, when the handle member is lifted, the inner wall 90 below the space 88 and the Λ-shaped guide 79 are engaged, and a force acts in a direction in which the end of the Λ-shaped leg approaches and narrows as the handle member is lifted, The slider 75 slides forward on the base 2 (FIGS. 23 and 24), and the rocking body 80 is again placed on the slider 75 (FIG. 25).

  The effect of Example 3 is as follows.

  Because the force to push down the handle directly acts on the apex of the Λ font, the slider can be moved lightly and smoothly.

  It is easy to adjust the width of the slider movement according to the Λ-shaped angle of the Λ-shaped font. That is, the width of the slider movement is influenced by the length of the staple leg, that is, the thickness of the object to be bound. Therefore, the force for sliding the slider can be increased or decreased depending on the angle of the Λ character.

  When the [Lambda] font is made to have a spring effect, the spring effect can be expected, so that the return force of the handle is strengthened. In this case, since the forward force of the slider is further increased, the restoration of the swing member is ensured.

  A fourth embodiment is shown in FIGS. In the fourth embodiment, the mechanism for changing the vertical movement of the handle to the movement in the longitudinal direction of the slider is the same as in the third embodiment, but the positional relationship between the stopper and the slider is different from that in the third embodiment. This difference causes the slider to slide forward during clinching. A guide surface for lowering the swinging body is provided on the slider.

The mechanism at the time of the action of the stapler shown in the fourth embodiment is shown in order in FIGS.
That is, a space 95 is formed by the handle guide member provided on the handle member 7, and the space 95 is engaged with a guide shaft 94 provided in the vicinity of the Λ-shaped vertex 109 of the Λ-character. . By pushing down the handle 7, the Λ-shaped apex 109 is engaged with the inner wall 96 above the void 95, thereby exerting a force in the direction in which the Λ-shaped leg spreads. The rear end of the [Lambda] font is engaged with the stopper 113 of the base 2, and the [Lambda] font is attached to the slider 99, so that the slider 99 slides forward on the base 2 (FIG. 31 to FIG. 33) Lower the swinging member (FIG. 31). Thereafter, as the handle member is raised, the slider 99 slides backward on the base 2 (FIGS. 32 and 33), and the swinging body 98 is again placed on the slider 99 (FIG. 27).

  The effect of Example 4 is as follows. Because the slider guide surface and the bottom front end of the swing member move in contact, the slider moves smoothly forward. Since the guide surface of the slider is always in contact with the front end of the bottom surface of the swinging member, no impact and noise are generated until the end of the needle hitting.

  A fifth embodiment is shown in FIGS. The fifth embodiment is the same as the fourth embodiment in the mechanism (Λ-shaped body 107, stopper 82, etc.) that changes the vertical movement of the handle to the longitudinal movement of the slider. The difference from the fourth embodiment is that the slider is provided with a guide surface for gently lowering the rocking body.

  In the fifth embodiment, the front end of the slider 106 gently and smoothly descends the swing member 105 at the end of the needle hitting, and the front end gently receives the bottom surface of the swing member, so that a cushion material or the like is not necessary.

  In the fifth embodiment, since the rear bottom surface of the swinging member is always in contact with the slider, no shock occurs at all until the swinging member reaches the lowest point, and an unpleasant noise is not generated and a smooth operation can be expected at all times. .

  A sixth embodiment is shown in FIGS. In the sixth embodiment, an arm mechanism is used, and when clinching, the slider slides backward, and a guide surface for gently lowering the swinging body is provided on the swinging body.

  Referring to FIG. 39, arm 65 includes a pair of upper arm 66, central arm 68, and lower arm 69 that engages with the slider. The slider 60 has the same voids 61 and 62 as the slider of the first embodiment. That is, the positional relationship between the slider and the oscillating body is the same as that of the first embodiment. The space 61 is a space for attaching the oscillating body to the base 2, and the space 62 is a space for the anvil base. .

  The base 2 is provided with an arm receiver 55 so that the arm 56 is engaged with the hole 56 of the arm receiver 55. An arm receiver 63 is provided behind the slider 60, and the lower arm 69 is engaged therewith.

  As shown in FIGS. 37 and 38, the handle 7 is provided with a handle guide member 70, and a space 71 is provided between the handle 7. An arm guide shaft 67 engages with the space 71.

  The relationship between the guide shaft 67 of the arm and the space 71 of the handle guide member 70 when the handle 7 is rotated is as shown in FIGS. 46 to 49, and the relationship between the slider 60 and the swinging body 58 associated therewith. Is as shown in FIGS. That is, by rotating the handle downward, the slider 60 slides backward (FIG. 42), and further by rotating the handle downward and the slider 60 slides backward, the slider 60 and the rocking body. The engagement of 58 is disengaged, and the rocking body 58 is lowered (FIG. 44). By turning the handle upward, the arm slides the slider 60 forward (FIG. 45), and as a result, the oscillator is placed on the slider and returns to the state before the action (FIG. 40).

  Details of the engagement between the guide shaft 67 and the handle guide member 70 in this series of operations will be described with reference to FIGS. As shown in FIG. 38, the handle guide member 70 is attached at a position that protrudes laterally from the handle 7. As a result, the surface that forms the void 71 is the lower guide surface 73 that faces upward on the handle guide member 70, and the upper guide surface 72 that faces downward on the handle 7. That is, the upper surface of the upper arm 66 is in contact with the upper guide surface 72, and the lower surface of the guide shaft 67 projecting laterally from the upper arm 66 is in contact with the lower guide surface 73 of the space 71. When the handle 7 is lowered, the upper guide surface 72 of the space 71 pushes the upper surface of the upper arm 66, and the arm engaged with the space 71 by the guide shaft 67 is shown in FIGS. 46, 47, 48, and 49. The slider 60 slides back on the base through the engagement between the arm receiver 63 of the slider 60 and the lower arm 69 as it moves to the position shown in the order of. Subsequently, when the handle 7 is raised, the lower guide surface 73 of the space 71 pushes the lower surface of the guide shaft 67 upward, and the arm engaged with the space 71 is shown in FIG. 49, FIG. 50, FIG. As the slider 60 moves to the position shown in the order of 52, the slider 60 slides forward on the base.

The effects specific to Example 6 are as follows.
Since the arm applies the principle of heel, the movement of the handle can be transmitted smoothly and lightly to the slider.

  The slider can be moved lightly and smoothly, making it easier to operate the handle when striking.

  The movement of the handle is transmitted to the slider via the arm. Therefore, since the width of the movement of the ladder can be increased, it is suitable for a long needle for cardboard.

  That is, the effect of the sixth embodiment is that the degree of freedom in designing the stapler is increased. When the handle-slider guide member is used, the slider can be slid largely by a small movement of the handle by the lever principle. Further, the slider can be slid small by a large movement of the handle. Thereby, it can respond easily by design from a small stapler to a large stapler for thick binding. That is, by adjusting the length of the lower arm 69 and the length of the upper arm 66, the distance from the fulcrum (central arm 68) to the force point (guide surface 57), the fulcrum (central arm 68) to the action point (the end of the lower arm 69). ) Can be easily changed, and the sliding distance of the slider can be increased or decreased by the lever principle. Further, the position of the handle guide member can be freely set in the front-rear direction.

  Example 7 is shown in FIG. In the seventh embodiment, an arm body mechanism is used, and when clinching, the slider slides backward, and a guide surface for gently lowering the swinging body is provided on the slider. The effect of providing the separate member called the arm body mechanism is the same as that of the sixth embodiment. In the seventh embodiment, since the guide surface is provided on the slider, it is possible to reduce the impact sound by lowering and raising the sliding member lightly, smoothly and quietly.

  The present invention is used for a flat clinch mechanism of a flat clinch type stapler.

The whole stapler is shown with the explanatory drawing of a section (example 1). A handle is shown (Example 1). A base 1, a slider, and a rocking body are shown (Example 1). A state in which a base 1, a slider, and a rocking body are attached is shown (Example 1). A state in which a base cover and a base 2 are further attached to the one shown in FIG. 1 is shown (Example 1). The state at the time of use is shown (Example 1). The state at the time of use is shown (Example 1). The state at the time of use is shown (Example 1). The state at the time of use is shown (Example 1). The state at the time of use is shown (Example 1). The state at the time of use is shown (Example 1). The state at the time of use is shown (Example 1). The state at the time of use is shown with the explanatory drawing of a section (example 1). (Example 2) which shows a slider and a rocking body. The state at the time of use is shown with the explanatory drawing of a section (example 2). The whole stapler is shown with the explanatory drawing of a section (example 3). Example 3 showing a slider (Example 3) which shows the positional relationship between the base 1, the slider, and the rocker attached. The state at the time of use is shown (Example 3). The state at the time of use is shown (Example 3). The state at the time of use is shown (Example 3). The state at the time of use is shown (Example 3). The state at the time of use is shown (Example 3). The state at the time of use is shown (Example 3). The state at the time of use is shown (Example 3). A state in which the base 1, the slider, and the rocking body are attached is shown (Example 4). The state at the time of use is shown (Example 4). The state at the time of use is shown (Example 4). The state at the time of use is shown (Example 4). The state at the time of use is shown (Example 4). The state at the time of use is shown (Example 4). The state at the time of use is shown (Example 4). The state at the time of use is shown (Example 4). The state which attached the base 1, the slider, and the rocking body is shown (Example 5). The state at the time of use is shown (Example 5). The state which attached the base 2 is shown (Example 5). The whole stapler is shown with the explanatory drawing of a section (example 6). Showing a handle (Example 6) A state in which a base 1, a slider, a rocking body and an arm are attached is shown (Example 3). The state at the time of use is shown (Example 6). The state at the time of use is shown (Example 6). The state at the time of use is shown (Example 6). The state at the time of use is shown (Example 6). The state at the time of use is shown (Example 6). The state at the time of use is shown (Example 6). The state of the handle | steering-wheel guide member at the time of use is shown (Example 6). The state of the handle | steering-wheel guide member at the time of use is shown (Example 6). The state of the handle | steering-wheel guide member at the time of use is shown (Example 6). The state of the handle | steering-wheel guide member at the time of use is shown (Example 6). (Example 7) which shows the state which attached the base, the slider, the rocking body, and the arm.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stapler 2 Base 3 Base cover 4 Slider 5 Oscillator 6 Frame 7 Handle 8 Staple case 10 Anvil base 11 Anvil 12 Oscillator base 13 Oscillator support shaft 14 Slider guide 15 Oscillator guide surface 16 Space 17 Slider front end 18 Handle Leg guide 19 Handle leg guide 20 Guide surface 21 Guide surface 22 Space 25 Leg 26 Hole 27 Space 28 Space 29 Oscillator guide surface 30 Oscillator front end 35 Handle leg 36 Leg front end 37 Leg rear end 40 Handle spring 41 Spring 42 Cassette spring 43 Base spring 45 Engagement tool 48 Seat
50 Blade 51 Blade hole 52 Staple 55 Arm receiver 56 Support hole 57 Guide surface 58 Oscillator 60 Slider 61 Space 62 Space 63 Arm receiver 65 Arm 66 Upper arm 67 Guide shaft
68 Central arm 69 Lower arm 70 Handle guide member 71 Void 72 Upper guide surface 73 Lower guide surface 74 Λ font apex 75 Slider 76 Λ font 77 Λ font rear end 78 Void 79 Guide shaft 80 Oscillator 82 Base stopper 85 Base cover 87 Handle guide member 88 Space 89 Upper guide surface 90 Lower guide surface 95 Space 96 Upper guide surface 97 Lower guide surface 98 Oscillator 99 Slider 105 Oscillator 106 Slider 107 Λ font 108 Λ font vertex 109 Λ font vertex 110 Λ font 111 Λ font front end 112 oscillating member and screwing portion of base cover 113 base stopper 114 guide shaft 115 guide shaft

Name of the invention Stapler

[0001]
【Technical field】
[0001] The present invention relates to a stapler capable of bending a leg portion of a staple needle flatly along a lower surface of the sheet bundle when a sheet bundle in which a plurality of sheets are stacked is bound by a staple needle, that is, a flat clinch type stapler. .
[Background]
[0002] Regarding the flat clinch type stapler, there are the following documents.
[0003] [Patent Document 1] Japanese Utility Model Publication 62-35779
[Patent Document 2] Japanese Utility Model Publication 62-35780
[Patent Document 3] Japanese Utility Model Publication 62-92173
[Patent Document 4] JP-A-1-84982
[Patent Document 5] Japanese Utility Model Laid-Open No. 1-132379
[Patent Document 6] JP-A-1-295769
[Patent Literature 6] 4-112784
[Patent Document 7] JP-A-2001-191264
[0004] Each of the above is configured to be bound in two stages: a stage in which the leg portion of the staple needle breaks through the sheet bundle, and a stage in which the leg section that broke through the sheet bundle is bent. In the first stage, when the handle is pushed down, the handle and the needle box in which the needle is installed are brought close to each other, and when the handle is further pushed down, the blade provided inside the handle pushes out the needle in the needle box. Legs break through the sheet bundle. At this time, the swinging member is held down by a member (slider) that prevents the sheet receiving member (swinging member) from being lowered, and the blade cannot reach the anvil. Only breaking through the bundle is done. When the first stage is completed, the process proceeds to the second stage, that is, the slider is retracted to release the swinging member from being lowered, and the leg is bent by the engagement of the swinging member and the anvil.
[0005] Then, after the end of the second stage, the state before the operation, that is, the slider is advanced again.

Claims (13)

A base mechanism with an anvil mechanism;
A staple box mechanism pivotally attached to the base mechanism;
A handle mechanism pivotally attached to the base mechanism and located above the staple box mechanism and provided with a blade;
A stapler comprising a flat clinching mechanism,
The flat clinch mechanism has a swing member and a slider,
While the leg portion of the staple loaded in the staple box mechanism penetrates the sheet bundle by the lowering of the blade, the slider exists below the swinging member to prevent the swinging member from being lowered.
When the slider is removed from below the swing member, the swing member is prevented from being lowered.
The staple is pushed out so that the tip of the leg portion of the staple through which the blade penetrates the sheet bundle reaches the position where the anvil mechanism exists by lowering the swinging member,
The staple is bound to the sheet bundle by bending the staple leg by the engagement of the staple leg and the anvil mechanism;
In the stapler, after the binding, the swinging member is raised and the slider is present below to prevent the swinging member from being lowered.
When the slider slides on the base in one direction in the front-rear direction, the swing member is prevented from being lowered and the swing member is lowered,
When the slider slides on the base in the front-rear direction or the other direction, the swinging member is lifted and the swinging member is prevented from being lowered.
Means for sliding the slider in one direction and means for sliding in the other direction,
A stapler characterized by comprising a mechanism that changes the vertical movement of the handle to the vertical movement of the slider. A first handle guide portion and a second handle guide portion are provided on the handle;
The slider is provided with a first slider guide part and a second slider guide part,
In the one mechanism,
When the handle is lowered, the first handle guide part and the first slider guide part are engaged, and the downward movement of the handle is changed to a movement of sliding the slider in one direction.
The second handle guide part and the second slider guide part are engaged with each other by raising the handle, and the movement of the handle is changed to a movement of sliding the slider in the other direction. The stapler according to claim 1. The first handle guide portion and the second handle guide portion are both provided on the leg portion of the handle,
The stapler according to claim 2, wherein the first slider guide part and the second slider guide part are both surfaces provided on the slider. The first handle guiding portion is a rear end of a lower end of a leg portion of the handle;
The second handle guiding portion is a front end of a lower end of a leg portion of the handle;
The first slider guide portion is a front surface of a first protrusion provided behind the slider;
The stapler according to claim 3, wherein the second slider guide part is a rear surface of a second protrusion provided behind the slider. The first handle guide portion and the second handle guide portion are inner peripheral surfaces of an opening provided in the handle;
3. The first slider guide portion and the second slider guide portion are located on a protruding portion of a convex body that engages with a stopper having one end fixed to the slider and the other end fixed to the base. The stapler described in 1. The first handle guiding portion is an upper surface of the inner peripheral surface of the opening, and the second handle guiding portion is a lower surface of the inner peripheral surface of the opening;
The convex body is a Λ font, the first slider guide part is on an outer corner of the vertex of the Λ font, and the second slider guide part is on an inner corner of the vertex of the Λ font. The stapler according to claim 5. The stapler according to claim 5, wherein the stopper is located in front of the convex body, and the downward movement of the handle is changed to a movement of sliding the slider backward. A swing member guide is provided on the lower front side of the swing member,
When the slider slides backward on the base, the upper front end of the slider moves along the swinging member guide, and when the front upper end of the slider is positioned at the rear end of the swinging member guide, the swinging is performed. The moving member descends the most,
When the slider slides forward on the base, the upper front end of the slider moves along the swinging member guide, and the front upper end of the slider is positioned forward of the front end of the swinging member guide. The stapler according to claim 4 or 7, wherein the slider is configured to prevent the swinging member from descending. A slider guide is provided above the front end of the slider,
When the slider slides backward on the base, the guide end provided on the lower front side of the swinging member moves along the slider guide, and the guide end is positioned at the front end of the slider guide. The swing member is lowered most,
When the slider slides forward on the base, a guide end follows the slider guide, and the slider swings when the guide end is positioned behind the rear end of the slider guide. The stapler according to claim 4 or 7, wherein the member is prevented from descending. The stapler according to claim 5, wherein the stopper is located behind the convex body, and the downward movement of the handle is changed to a movement of sliding the slider forward. A slider guide is provided above the front end of the slider,
When the slider slides forward on the base, the guide end provided on the lower front side of the swinging member moves along the slider guide, and when the guide end is positioned at the front end of the slider guide. The swing member is lowered most,
When the slider slides back on the base, the guide end is adapted to follow the slider guide, and when the guide end is located behind the rear end of the slider guide, the swing member is The stapler according to claim 10, wherein the slider is prevented from descending. A first handle guide portion and a second handle guide portion are provided on the handle;
The slider is provided with a first slider guide part and a second slider guide part,
In the one mechanism,
When the handle is lowered, the first handle guide portion and the first slider guide portion are engaged via the handle-slider guide member, and the lowering motion of the handle is changed to a motion of sliding the slider rearward.
As the handle is lifted, the second handle guide portion and the second slider guide portion are engaged via the handle-slider guide member so that the rising motion of the handle is changed to the motion of sliding the slider forward. The stapler according to claim 1, wherein the stapler is provided. The handle-slider guide member is fixed to a base column provided on the base,
The first handle guide portion and the second handle guide portion are inner peripheral surfaces of an opening provided in the handle;
One end of the handle-slider guide member is engaged with the inner peripheral surface,
The first slider guide part and the second slider guide part are in a notch provided in the slider;
The stapler according to claim 12, wherein the other end of the handle-slider guide member is engaged with the notch.

Images