JPWO2004028750A1 - Cassette type stapler - Google Patents

Abstract

A cassette-type stapler comprising means (26, 40) for feeding staples in the cassette (7), means for pushing out the staples from the cassette (7), and base means comprising means for folding and binding the pushed stapler The staple feeding means (26, 40) comprises a feeder (40) in the cassette and a feeder feeding means (26) in the stapler body.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stapler that uses a cassette pre-filled with staples on a stapler body, that is, a cassette-type stapler.

  As conventional cassette type staplers, there are Japanese Patent No. 1667124 (Japanese Patent Laid-Open No. Sho 62-94279) and Japanese Patent No. 2522652 (Japanese Patent Laid-Open No. Sho 63-84881) according to the invention of the present inventor. For example, in the stapler according to Japanese Patent No. 2522652 (FIG. 82), the cassette-type stapler includes a handle 152, a base 151, and a cassette 150. In any other cassette-type stapler, it is easy to load staples, which are consumables, by using a cassette that is pre-filled with staples on the stapler body. It has excellent effects such as that the staples are not wasted and that the staples are not hurt when the staples are loaded. These cassette-type staplers have a configuration that enables thick binding with a small force afterwards, a precise configuration to ensure the hitting needle, and the number of parts to make manufacturing inexpensive and easy. Various improvements have been made to the details, such as the structure that reduced the number, and so on.

Problems to be solved by the invention

A cassette of a conventional cassette type stapler is shown in FIGS. In all cassettes of conventional cassette-type tapers, it is indispensable that a “spring” is present in the cassette in order to push the staples forward (FIG. 83). Further, the conventional spring 155 mostly uses a coil spring made of iron in order to satisfy the requirements such as the reliability of pushing out staples and the low cost and ease of manufacture. For this reason, when discarding and reusing a cassette that is no longer needed after the staples in the cassette are used up, all but the springs (that is, the guide bar 156, feeder 154, etc.) are made of plastic, although they are all made of plastic. Since the spring 155 remains in the cassette, there is a limitation on disposal or the like.
In addition, the incorporation of a spring meant that strength was required for components other than the spring.
In addition, in order to incorporate the spring, it was necessary to make the cassette into a box shape, and the degree of freedom in design had to be reduced.
Further, in order to match the direction in which the staple is pushed and the expansion / contraction direction of the coil spring, a mandrel of the coil spring (in the cassette according to FIG. 83, the guide bar 156 corresponds to this) is essential. That is, the number of assembling steps becomes excessive as compared with the case where these are not required (this application). In order to obtain a reliable punch, each component itself and the precision of the engagement of each component may be required, and the excessive number of assembly steps synergistically leads to the following problems. .
Further, for example, in the assembling operation shown in FIG. 83, the cassette holder and the cassette bottom cover are assembled to form a box shape opened at the back, and the staple 157 is loaded from the rear, and then the feeder. 154 is inserted, the spring 155 is passed through the guide bar 156, and is attached integrally, and the operator is required to have some skill. Also, attaching the spring and guide rod as a unit to the stapler body was a considerable amount of manual labor. In addition, since guide bars and springs are essential and the number of parts is large, a large number of molds are necessary for producing parts, and the mold cost is increased.
That is, since the number of parts is large, the weight increases.
In other words, since the cassette is completed by assembling the cassette holder and the cassette bottom cover, sufficient strength of the cassette body cannot be obtained.

Means for solving the problem

A cassette type comprising: means for positioning the cassette on the frame; means for feeding the staples in the cassette forward; means for pushing the staples out of the cassette; and base means comprising means for folding and binding the staples Provide the stapler body of the stapler.
The cassette-type stapler is a stapler in which a stapler body having a mechanism for hitting a needle and a cassette filled with a needle are separated. In the cassette type stapler, the cassette can be attached to and detached from the stapler body, and when the needle in the cassette is used up, the entire cassette is replaced. Any cassette-type stapler is the subject of the present application, and is mainly a thick-stitched stapler (Fig. 1 etc.) that is placed on a desk and operated, and a small stapler (not shown) that is gripped and operated by a hand. Both of these are included.
The stapler body is composed of a gantry. The gantry includes a means for positioning the cassette, a means for feeding the staples in the cassette forward, a means for pushing the staples out of the cassette, and a base means.
A means for positioning the cassette with respect to the stapler main body is essential at a position where the needle can be struck when the cassette is attached to the stapler main body, that is, a “means for pushing the staples out of the cassette” described later. This means is provided at the part of the cradle for receiving the cassette. The mechanism may be a convex portion provided on the gantry and a concave portion of the cassette provided so as to be fitted with the convex portion, or a cassette provided so as to be fitted with the concave portion provided on the gantry. It may be a convex part. These convex portions or concave portions may be linear or dot-like. Further, the mechanism may have a shape in which the inner shape of the gantry is a cylindrical space, and the outer shape of the cassette fits into the cylindrical space. The entirety of the cassette in the longitudinal direction may be fitted into the cylindrical space of the gantry, or a part of the cassette may be fitted into the cylindrical space. Further, the mechanism may be configured such that a rod-like body provided on the pedestal enters the cassette.
When the cassette is attached to the gantry, the cassette may be inserted into the stapler gantry from any of the vertical direction, the front-rear direction, and the left-right direction of the stapler.
In addition, since one staple is used with a single hitting needle, it is necessary to provide a means for feeding a new staple to be used for the next hitting needle forward one by one. The mechanism for feeding one staple forward is based on the cooperation of means provided in the stapler body and means (feeder) provided in the cassette.
Also, means for pushing the staples out of the cassette is essential. This means may be a conventionally widely used method of pushing down a handle to which the blade is attached, or may be a blade that is pushed down by a piston, or a blade that uses multiple powers, that is, gears, cams, links, etc. You may press down. A hole for one needle is provided at the front end of the cassette. When the blade is pushed down, the mechanism that the blade enters into the hole and pushes out one needle is the same as in the conventional cassette type stapler.
Further, a means for folding and binding the staple is essential, and this means is carried out by an anvil provided on the base of the stapler body. Either an anvil that has been widely used in the past or a mechanism in which a flat binding mechanism is provided in addition to the anvil may be used.
A stapler body is provided, wherein the cassette is inserted into the frame in the longitudinal direction of the cassette and attached to the stapler body.
A mechanism for hitting the needle is provided on the upper portion of the stapler body. By adopting a mechanism in which the cassette is inserted into the frame in the longitudinal direction of the cassette, it is not necessary to consider the influence on the mechanism for hitting the needle when the cassette is inserted or removed. In the case of inserting the gantry in the longitudinal direction, it includes both the case of inserting from the front of the stapler body and the case of inserting from behind.
A stapler body is provided, wherein the cassette is inserted from the front of the stapler body.
A mechanism for rotating the handle or a mechanism for preventing the cassette from popping out of the stapler body when the cassette is removed may be provided behind the stapler body. When a mechanism for inserting the cassette from the rear side of the stapler body is used, it is necessary to consider the influence on these mechanisms existing behind the stapler body. If a mechanism for inserting the cassette from the front is used, this need is eliminated.
Provided is a stapler body characterized in that a convex portion provided on one of the cassette and the gantry and a concave portion provided on the other are fitted to determine the position of the cassette.
In the case where the convex portion and the concave portion are fitted, the cassette positioning means can be obtained by integral molding of the product, which is simple. The fitting in this case may be a fitting between a dot-like convex part and a concave part, or may be a fitting between a linear convex part and a concave part. The fitting may be a point-like convex part and a linear concave part. A fitting may exist in one place and may exist in multiple places.
Provided is a stapler main body characterized in that both the convex portion and the concave portion are provided in a rail shape in the longitudinal direction of the cassette.
When the fitting between the convex part and the concave part is provided on the rail in the longitudinal direction of the cassette, a fitting without looseness and a sufficient fitting can be obtained. Moreover, it is easy to insert the cassette.
There is provided a stapler main body characterized in that the vertical width of the concave portion is wider than the vertical width of the convex portion at an end portion in the front-rear direction of the stapler main body.
The front-rear direction end means either the front or rear end. The widened end becomes the entrance for mounting the cassette. The width in the up-down direction that is wider than the other is smoothly tied up to a portion that is the same as the width in the other up-down direction, and the convex portions or the concave portions are continuous.
When the vertical width of the projections or recesses provided in a rail shape in the longitudinal direction is the same throughout the longitudinal direction, the projections or recesses are first aligned when starting to insert the cassette. You have to use your nerves to do it. However, for example, when the rack is provided with a concave rail and the cassette is provided with a convex rail, if the vertical width of the recess at the front end of the rack is made wider than the others, the cassette When the insertion is started, it is not necessary to accurately match the positions of the convex portion of the cassette and the concave portion of the pedestal visually. The operation of attaching the cassette is usually performed with both hands while looking down the stapler body on the work table. According to the configuration of the present application, when the cassette is started to be inserted, if the cassette is placed at an approximate position to be attached to the stapler main body and is inserted as it is, it is guided to a smooth line, and finally the cassette is Accurately positioned on the body. The object to be widened is not a convex part but a concave part, but not only when the concave part is provided on the mount of the stapler body as in the previous example, but also when the concave part is provided on the cassette.
The stapler body is characterized in that the means for positioning the cassette is formed by closely fitting at least a part of the cassette into a cavity provided in the mount.
It is sufficient if at least a part of the cassette is closely fitted, but most of the cassette may be closely fitted to further improve the nailing performance. Since the outer periphery of the cassette closely fits into the frame cavity, play can be minimized and the nailing performance is further enhanced. In addition, since the surface of the cassette or the like is flat, the manufacture becomes easy and the production cost is reduced.
Provided is a stapler body characterized in that a taper is provided at an end in the front-rear direction of the cavity.
The “taper” mentioned here assumes a state where the front of the cavity is wide and narrows as it enters, and the wide part and the narrow part may be connected with a straight line or connected with a curve. It may be. Further, the position of the taper may be at either the front end portion or the rear end portion of the cavity. In the case of a mechanism for inserting the cassette from the front, the taper is present at the front of the stapler main body, and in the case of the mechanism for inserting from the rear of the cassette, the taper is present at the rear of the taper main body.
By providing a taper in front of the cavity, the entrance of the cavity when inserting the cassette is widened, and by inserting from such a wide entrance and continuing to insert along the slope of the taper, the cassette Can be inserted into the cavity.
The means for feeding the staple forward is a feeder feed for feeding the feeder in the cassette forward and a means for feeding the feeder forward, and the position where the feeder feed comes into contact with the feeder when the cassette is attached. The stapler body is characterized by being placed on.
That is, there is a feeder in the cassette, and feeder feeding that feeds the feeder forward exists in the stapler body. A means for feeding the feeder forward is also essential for the stapler body. The feeder functions to feed a bundle of staples from behind by pressing or the like. The same material as the cassette holder is sufficient for the feeder. This eliminates the need for an iron material such as a conventional spring in the cassette. The means for feeding the feeder forward may be, for example, the elasticity of the elastic body or the air pressure of the bellows.
Provided is a stapler body characterized in that a friction member is provided on the feeder.
The friction member is a member provided to prevent the feeder from shifting in the front-rear direction and to prevent the staple from shifting. This is realized by providing protrusions or the like on the upper wall or side wall of the feeder to increase the number of portions where the feeder and the inner wall of the cassette are rubbed. As a result, an accurate needle can be obtained.
The stapler main body is characterized in that the means for feeding the feeder feed forward is due to elasticity of an elastic body provided between the feeder feed and the gantry.
The elastic body may be anything as long as elasticity is generated between the feeder feed and the gantry, and may be a spring or rubber. An iron coil spring may be used as the spring in consideration of availability, simplicity of mechanism, and economy. Even in that case, the iron coil spring is not provided in the cassette, but is provided in the stapler body.
The stapler body is characterized in that the elastic body is a tension spring, one end of the tension spring is attached to the front of the gantry, and the other end is attached to the feeder feed.
If the elastic body is a tension spring, and one end of the tension spring is attached to the front of the gantry and the other end is attached to the feeder feed, the structure can be simplified, and assembly is easy. There are few product failures. Further, by providing the feeder feed with a structure that prevents the feeder feed from being removed upward (for example, a foot hook), the upper cover of the stapler body can be dispensed with.
The elastic body is a tension spring, one end of the tension spring is attached to the rear of the gantry, the other end is attached to the feeder feed, and a midway part of the tension spring is provided in front of the gantry Provided is a stapler body characterized in that the direction of the force of the pulling spring is folded by engaging with a roller.
By using a roller and having a structure in which the direction of the force of the pulling spring is folded back, a spring having a longer length can be used than in the case where the direction of the spring is one direction. For this reason, regarding the force for pressing the staples, the difference in the force can be reduced when comparing the case where the staples are large and the case where the staples are small. Therefore, the staples can be smoothly fed with almost uniform force from the beginning of use of the cassette to the last one. Thereby, breakage of the staple can be prevented and an accurate needle can be obtained.
By using a roller to make a structure in which the direction of the force of the pulling spring is folded back, a spring having a soft force and a long length can be used, so that the feeder feed can be further shortened. Further, the frame can be shortened, and the entire apparatus can be reduced in size.
Also, as a result of using a long spring, the durability of the spring is greatly enhanced. Further, as a result of using the spring with a soft force, the force when loading the cassette into the stapler body can be reduced. Furthermore, even when the staples are fully filled, the momentum of the cassette popping out can be reduced when the cassette is taken out.
The stapler body according to claim 1, wherein the elastic body is a pressing spring, and a direction of a force by the pressing spring is kept constant by a guide means.
When the elastic body is a push spring, a simple structure can be obtained, so that the assembly is easy and there is little failure of the product. Further, by providing the feeder feed with a structure that prevents the feeder feed from being removed upward (for example, a foot hook), the upper cover of the stapler body can be dispensed with.
When the elastic body is a push spring, a guide means is required to keep the direction of the force of the push spring constant in the direction of pushing the feeder feed. The guide means may be a mandrel penetrating through the ring of the push spring, or a groove provided in a portion of the stapler body where the push spring is placed.
The feeder feed is provided with a foot for guiding the forward and backward sliding of the feeder feed, and the foot is provided with a hook for locking the upward movement of the feeder feed. Provide the body.
By providing a hook for stopping the upward movement of the feed feed, the upper cover of the stapler body can be dispensed with. As a result of eliminating the need for the top cover and reducing the number of members, it is possible to provide an easily manufactured and inexpensive product.
The engagement between the cassette and the stapler body includes a first engagement and a second engagement, and the first engagement brings the cassette into a position where the means for pushing the staples out of the cassette can act. A stapler, wherein the stapler is configured to temporarily stop the cassette from jumping forward of the stapler body when the first engagement is released by the second engagement. Provide the body.
That is, the second engagement is added to the first engagement that is normally provided. In the second engagement, it is sufficient that the cassette can be temporarily engaged with the stapler body. The second engagement functions as a temporary stop for the cassette to jump forward vigorously when the first engagement is released. The cassette jumps out of the stapler body when the first engagement is released because the stapler according to the present application is provided with a mechanism for feeding the feeder feed forward to the stapler body. . Such a jump is dangerous and a second engagement is necessary. The second engagement needs to be temporary. That is, it is necessary to have a means for releasing the second engagement by an easy means and completely removing the cassette from the stapler body.
The holder contains a staple and a feeder for feeding the staple forward in cooperation with a means provided on the stapler body, and a means for positioning the cassette with respect to the stapler body is provided. The stapler body Means for positioning the cassette with respect to the cassette or the stapler main body by fitting a convex portion provided on one of the cassette and the concave portion provided on the other, the convex portion or the concave portion being the cassette There is provided a cassette of a cassette-type stapler that is provided in a rail shape in the longitudinal direction.
In the cassette, a feeder exists in the cassette as a part of means for feeding the stapler forward. In this case, since it is sufficient for the feeder to function as a member that directly presses the staple, it is not necessary to use iron or the like, and the same material as the holder is sufficient. For this reason, it becomes easy to discard or reuse a cassette that has become unnecessary to use up staples. In addition, since the convex portion and the concave portion are fitted, the cassette positioning means can be obtained by integral molding of the product, which is simple. Since the fitting between the convex part and the concave part is provided in the form of a rail in the longitudinal direction of the cassette, a fitting without looseness and a sufficient fitting can be obtained. In addition, it can be easily loaded into the stapler body.
The cassette is characterized in that the convex portion or the concave portion is provided on a side surface of the cassette.
The cassette is characterized in that the convex portion or the concave portion is provided on an upper surface of the cassette.
There is provided a cassette characterized in that at least a part of the outer periphery is an outer periphery closely fitting with an inner periphery of a cavity of a stapler body to which the cassette is attached.
Means for positioning the cassette with respect to the stapler body is provided, and a cassette holder for a cassette-type stapler that stores and uses staples and a feeder that feeds the staples forward in cooperation with the means provided on the stapler body. I will provide a.
The means for positioning the cassette with respect to the stapler main body is by fitting a convex portion provided on one of the cassette or the stapler main body and a concave portion provided on the other, and the convex portion or the concave portion is A holder is provided which is provided in a rail shape in the longitudinal direction on the side surface of the cassette.
A stapler body comprising: means for positioning the cassette on the gantry; means for feeding the staples in the cassette forward; means for pushing the staples out of the cassette; and base means having an anvil; A cassette type comprising a staple and a cassette that houses a feeder that forwards the staple in cooperation with means provided in the stapler body, and that is provided with means for positioning the cassette with respect to the stapler body. Provide a stapler.
A cassette-type stapler characterized in that the means for positioning the cassette with respect to the stapler body is a fit between a convex portion provided on one of the cassette and the stapler main body and a concave portion provided on the other. I will provide a.
The cassette-type stapler is provided in which the convex portion or the concave portion is provided in a rail shape in the longitudinal direction of the cassette.
The cassette-type stapler is provided in which the convex portion or the concave portion is provided on a side surface of the cassette.
A cassette-type stapler is provided, wherein the convex portion or the concave portion is provided on an upper surface of the cassette.
Provided is a cassette-type stapler characterized in that at least a part of the outer periphery is an outer periphery closely fitting with an inner periphery of a cavity of a stapler body to which a cassette is attached.

  Hereinafter, embodiments of the invention will be described. Since each embodiment has many common points, the common points will be described in the first embodiment. The contents described in the first embodiment are structures common to the other embodiments unless otherwise specified.

The first feature of the first embodiment is that a cassette having a flange on the upper wall and a wall on the back and having a closed back is used as the cassette. A second feature of the first embodiment is that a cassette having a side wall flange is used. A third feature of the first embodiment is that a mechanism using a tension spring and a roller is used as a means for feeding the feeder forward.
First, the first feature of the first embodiment will be described. This configuration assumes the case where a conventional cassette that is already on the market is used for the stapler according to the present application. If the conventional cassette cannot be used in the stapler body according to the present application, resources are wasted. For this reason, an embodiment corresponding to such a cassette is necessary. That is, as shown in FIGS. 82 to 85, the cassette used for the conventional cassette-type stapler has the protrusion 153 on the upper surface of the cassette and the back surface is closed by the wall. The protrusion 153 is provided to perform the same function as a first engagement described later in the present application.
When a conventional cassette having such an external shape is used for the stapler body, the stapler body needs to have a structure for avoiding the protrusion 153 on the upper wall of the cassette. For this reason, in the cassette according to the first embodiment, the upper wall flange 32 having the same height as the protrusion 153 found in the conventional cassette is provided. Specifically, the structure for avoiding the protrusion 153 on the cassette upper wall is a frame gap 66 shown in FIGS. 41 to 43, and the upper wall flange of the cassette fits into this portion.
As described above, the cassette used in the conventional cassette-type stapler incorporates the spring and the guide, and the cassette-type stapler according to the present application does not require such an internal structure. However, if the stapler body according to the first embodiment (having a flange on the upper wall and a structure in which a cassette having a wall on the back surface and closed on the back surface can be attached) A conventional cassette can also be attached, and the aforementioned resources are not wasted.
1 to 5 show a right side view (FIG. 1), a top view (FIG. 2), a bottom view (FIG. 3), a front view (FIG. 4), and a rear view (FIG. 5) of the stapler 1. 1 to 5, the stapler 1 basically includes a handle 2, a frame 3, and a base 4. This is the same as in the prior art. A hook 6 is provided at the rear end of the frame 3. The hook 6 is used when a cassette 7 (not shown) is taken out from the frame 3 by the configuration described later. A bottom lid 5 is provided on the bottom surface of the base 4. The bottom cover 5 is made of a material that is more flexible than the other parts, and this can prevent the desktop or the like from being damaged when the stapler 1 is placed on the desktop or the like. Further, it is possible to prevent the stapler from slipping during the work. As described above, by providing the bottom cover 5 that is a separate body from the base 4 at the bottom of the stapler, the work can be performed safely and reliably while maintaining the strength of the stapler.
As shown in FIGS. 8 and 9, when the cassette 7 is inserted into the frame 3, the wall at the rear end of the cassette 7 presses the spring 15, and a force acts in a direction in which the cassette 7 jumps forward by the spring 15 ( 8 and 9). In addition, this structure assumes the case where the cassette which consists of the conventional external shape (the back is closed with the wall) which is the 1st characteristic of Example 1 is attached.
Next, the second feature of the first embodiment, that is, the point that the cassette is further provided with a side wall flange will be described.
6 to 8 are partial cross-sectional views of the stapler 1 viewed from the right side. FIG. 6 shows a state in which no cassette is mounted, FIG. 7 shows a state in the middle of mounting the cassette, and FIG. 8 shows a state in which the cassette has been mounted. With reference to FIGS. 6-8, the mechanism at the time of mounting a cassette in a stapler is demonstrated. 36 and the like, a pair of left and right grooves 9 (9a, 9b) are provided on the inner wall of the frame 3. The groove 9 is wide in the vertical direction at the front end of the frame 3 (reference numeral 12), and becomes narrower by drawing a smooth curve 11 toward the rear of the frame, and most of the width is narrow. . On the other hand, the left and right side walls of the cassette 7 are provided with a pair of side wall flanges 31 (31a, 31b). The side wall flange 31 is almost the same width as that of the groove 9, but is a wide side wall flange 30 (30a, 30b) extending in the vertical direction of the cassette at the front end of the cassette. The cassette 7 is inserted by holding the front of the cassette 7 and placing the rear end of the cassette 7 at a position where the upper end of the cassette 7 collides with the ceiling of the frame gap 8 of the frame 3. Insert the cassette 7 toward you. At this time, the pair of side wall flanges 31 provided in the cassette is slidably fitted into the pair of grooves 9 provided in the frame. Since the groove 9 of the frame is a wide groove 12 at the front end and has a gentle curve 11 to become a narrow groove, the positional relationship between the groove 9 and the flange 31 can be accurately determined at the start of charging. It is not necessary to make it fit, and it is sufficient if the upper end of the cassette 7 collides with the ceiling of the frame gap 8 and is inserted as it is.
The cassette 7 is provided with a feeder 40 as described later, and the frame is provided with a feeder feed 25 as described later. When the cassette 7 is loaded into the frame 3, the feeder 40 collides with the feeder feed 25, and the feeder feed 25 is pushed by the feeder 40 as the frame 3 is loaded, thereby opening the upper opening 34 (FIG. 11, etc.) of the cassette. It slides and collides with the rear end of the frame 3 to complete the charging (FIG. 8).
As shown in FIGS. 8 and 9, the hook 6 has a hook pressing portion 21 and a hook rear end 20. The hook pressing portion 21 is outside the rear end of the frame 3, and the hook rear end 20 is inside the rear end of the frame 3. It is arranged to be located in the direction. As shown in FIGS. 6, 7, and 9, a spring 16 is provided at the bottom of the hook, and a force is applied in such a direction that the hook 6 is maintained in the position shown in FIG. 6 or 7. Further, as shown in FIG. 9 and the like, a frame stopper 19 is provided at the bottom of the frame 3. The frame stopper 19 is attached to the bottom of the frame 3 by a stopper end b24, and the stopper end a23 is a free end. When the stopper 19 is bent, the stopper end a23, which is a free end, can be finely moved in the vertical direction.
When the cassette 7 is inserted into the frame 3, the cassette claw 22 and the hook 6 collide with each other, and the hook rear end 20 is fitted into the claw 22 by the elasticity of the spring 16, and the cassette 7 is positioned (see FIG. 8). When the cassette 7 is removed, as shown in FIG. 9, the hook pressing portion 21 is pushed down against the spring 16 to release the engagement between the pawl 22 and the hook rear end 20. Then, the cassette 7 tries to jump forward with a strong force by the elasticity of the spring 15 and a feeder spring 61 described later. At this time, the claw 22 of the cassette 7 is engaged with the free end 23 of the frame stopper 19 to stop the cassette from popping out (FIG. 9). Thereafter, when the cassette is gripped and pulled forward, the engagement between the pawl 22 and the frame stopper 19 is easily disengaged by the fine movement of the stopper end a23 in the vertical direction, and the cassette can be pulled out.
FIG. 10 shows the feeder feed 25 in a perspective view. The feeder feed 25 includes feeder feed side walls 27a and 27b, a feeder feed bottom wall 29, and feeder feed flanges 26a and 26b. A feeder feed notch 28 is provided in the feeder feed bottom wall 29. FIG. 11 shows the cassette 7 in a partial perspective view. Referring also to FIG. 20, the cassette 7 has a hole 37 on the front side that serves as a staple outlet when the needle is hit. The cassette 7 is provided with side wall flanges 30a and 31a on the cassette side wall 35a and side wall flanges 30b and 31b on the cassette side wall 35b. An upper wall flange 32 is provided on the cassette upper wall, and the upper wall flange 32 is divided into two forks with a central upper opening 34 interposed therebetween (33a, 33b). FIG. 12 shows the feeder 40 in a perspective view. The feeder 40 has feeder side walls 41a and 41b and a feeder upper wall 43, and the feeder upper wall 43 is provided with two feeder upper wall grooves 44a and 44b. A portion sandwiched between the feeder upper wall grooves is a feeder tongue piece 45. The tip of the tongue piece has a convex portion 46, and a part of the convex portion 46 is a taper 47. Referring also to FIG. 26, the feeder 40 has a feeder inner wall 48. The front of the feeder middle wall 48 is a feeder upper wall 42.
FIG. 12 is a partial perspective view showing the engagement between the cassette 7 and the feeder 40. Referring also to FIG. 20, the feeder 40 is fitted into the cassette 7. At this time, the convex portion 46 of the tongue piece tip 46 is fitted into the upper opening 34. When the feeder 40 is fitted into the cassette 7, if there is no upper wall flange 32 on the upper wall of the cassette 7, only the feeder tongue 45 protrudes from the upper wall (upper wall groove) of the cassette 7. become. The upper wall flange 32 is provided to protect the protruding feeder tongue 45 from the left-right direction.
When the length of the portion other than the convex portion 46 of the feeder tongue 45 is the same as that of the upper wall flange 32 and the convex portion 46 is in a position in contact with the upper wall flange 32, the feeder side wall 41 and the feeder upper wall 43 A gap corresponding to one staple is left between the front end and 36.
13 and 14 show the case where the feeder 40 is provided with a friction projection. In FIG. 13, friction protrusions 49 are provided on the left and right of the feeder tongue 45. As shown in the figure, the upper surface of the friction projection 49 is substantially in the same plane as the plane on which the feeder upper wall exists. Therefore, when the feeder slides on the inner surface of the cassette, in addition to the feeder tongue 45 and the feeder upper wall 43, the friction projection 49 also rubs the inner surface of the cassette. As a result, the feeder can be prevented from shifting in the front-rear direction, and the needle can be prevented from shifting. In particular, when the remaining number of needles is low, such a mechanism is effective because the feeder and the needles may shift and hinder accurate hitting.
FIG. 14 shows a case where the friction projection 49 ′ is provided on the feeder side wall. In this case, the friction protrusion 49 'rubs the inner surface of the side wall of the cassette. The effect of the friction protrusion 49 ′ is the same as that of the friction protrusion 49.
16 to 18 show the cassette 7 when the staple 50 is not mounted. 16 is a top view, FIG. 17 is a right side view, and FIG. 18 is a bottom view.
FIG. 19 is a top view of the cassette 7 with the staples 50 loaded therein. FIG. 20 is an explanatory cross-sectional view of the cassette in a state where the staples 50 are not loaded as seen from the right side. FIG. 21 is a cross-sectional view taken along the line AA ′ of FIG. FIG. 23 is an explanatory cross-sectional view of the cassette (in a state where staples are loaded) as seen from the right side. FIG. 24 is a sectional view of the cassette according to FIG. 23 taken along the line BB ′. FIG. 25 is an explanatory cross-sectional view of the cassette in the middle of loading the staples 50 as viewed from the right side. The staple 50 is loaded from the back of the cassette 7, and then the feeder 40 is loaded from the back of the cassette. Feeder side walls 41a and 41b of the feeder 40 engage with cassette bottom grooves 38a and 38b of the cassette. Since the convex portion 46 is provided on the upper wall of the feeder, the convex portion 46 engages with the inner side of the upper wall of the holder at the beginning of charging (FIG. 25). Is engaged with the rear end 52 of the upper wall (FIG. 23), and charging is completed.
FIG. 26 to FIG. 30 show the engagement between the feeder 40 and the feeder feed 25. 26 is a cross-sectional explanatory view from the right side, FIG. 27 is an explanatory view from the top, FIG. 28 is an explanatory view from the bottom, FIG. 29 is an explanatory view from the back, and FIG. 30 is from the front. FIG. Such engagement between the feeder 40 and the feeder feed 25 occurs in the state shown in FIGS. 7 and 8, that is, in the state where the cassette 7 is mounted on the frame 3. That is, the feeder 40 exists inside the cassette 7, and the convex portion 46 at the tip of the tongue piece protrudes upward from the upper opening 34 of the cassette 7 (FIG. 12), and the feeder feed 25 is formed on the feeder feed bottom wall 29. Further, a pair of feeder feed flanges 26 a and 26 b provided below are fitted into the upper opening 34 and slide along the upper opening 34. Therefore, the convex part 46 of the feeder 40 and the feeder feed flange 26 of the feeder feed 25 can be engaged in the positional relationship as shown in FIGS.
On the upper surface of the frame 3, a mechanism for controlling the movement of feeder feeding is provided (FIGS. 31 to 47). 31 to 34, a rear shaft 85 is provided behind the upper surface of the frame, and a front shaft 84 is provided forward. The upper surface of the frame is surrounded by a side wall 81. A square hole 83 is provided in the center of the upper surface of the frame. Referring to FIGS. 35 to 37, the frame side wall 81 is provided with a single groove 86 at a position substantially the same height as the rear shaft 85.
38 to 40, the upper surface of the frame is covered with a frame upper lid 90. Referring to FIG. 40, the frame upper lid 90 is provided with beams 92, 93, 94 on the bottom surface. 44 to 48, the front beam 92 approaches a position very close to the front shaft 84, the rear beam 93 is engaged with the rear shaft 85, and the edge 87 of the frame upper lid is engaged with the single groove 86. Match. When the upper surface of the frame is covered with the upper cover of the frame, the front beam 92 and the front shaft 84 are located in close proximity to each other, but are not in contact with each other. As will be described later, the front shaft 84 rotates as the staple is used, so that the rotation is not hindered (see FIGS. 44 and 49). 45 shows an AA ′ section of FIG. 44, FIG. 46 shows a BB ′ section, FIG. 47 shows a CC ′ section, and FIG. 48 shows a DD ′ section.
A third feature of the first embodiment, that is, a point using a tension spring and a roller as means for feeding the feeder forward will be described.
49 to 51 show a state where the feeder spring 61 is attached to the upper surface of the frame. One end of the feeder spring 61 is attached to the rear shaft 85 and the other end is attached to a feeder hook 60 provided in the feeder feed 25. Referring to FIG. 49, a roller 80 is attached to the front shaft 84 on the upper surface of the frame, and the feeder spring is engaged with the roller 80 and changed its direction on the way from one end to the other end. As shown in FIG. 50, when the feeder spring 61 expands and contracts, the feeder spring hardly moves in the vertical direction. Therefore, even if the frame upper lid 90 is attached, there is a space in a width corresponding to the frame inner wall 82 and the rear shaft 85. If so, the movement of the feeder spring 61 is not blocked. Since the feeder spring 61 engages with the hook 60 on the feeder feed 25, a force is always applied to the feeder feed 25 in the direction in which the feeder feed 25 is advanced forward, that is, the direction in which the feeder 40 and the staple are pushed. When the staple becomes the last one, the state shown in FIG. 51 is obtained. That is, the convex portion of the feeder 40 approaches the upper wall flange 32 with a gap corresponding to one staple, and the feeder inner wall 48 comes into contact with the staple guide member 53 to resist the pulling force of the feeder spring 61. You can stop the progress.

In Example 2, as the cassette, a cassette that is not provided with a wall on the back side and is open on the back side is used. Regardless of the presence or absence of the flange and the location of the flange, if the back surface is open, it is the subject of Example 2. “The back is open” means, for example, a state as shown in FIGS. 54, 59, and 64.
In the cassette according to the second embodiment, one part is less than a cassette having a wall on the back. In addition, when a cassette having no wall on the back is used as the cassette, the stapler body spring 15 (FIGS. 6 to 9) is not required, so that the stapler body does not require one point. This reduces the number of materials and the number of manufacturing processes. As a result, manufacturing costs are reduced.
Even in a cassette that does not have a wall on the back, the rear end 52, 102, 112, 132 (FIGS. 20, 23, 53, 54, 59, 64) of the upper wall exists in the cassette. The staple 50 and the feeder 40 loaded in the cassette do not fall off.

In Example 3, a cassette having no upper wall flange and having a flat upper surface and having a side wall flange is used. The case according to Example 3 is shown in FIGS. 53 to 57 and FIGS. 75 to 77. 53 and 54 show the cassette, and FIGS. 55 to 57 and FIGS. 75 to 77 show the engagement between the cassette and the stapler body. That is, the cassette 100 has the side wall flange 103, but the upper wall is flat. There is an upper wall rear end 102 at the rear end of the upper wall. When the feeder is attached to the cassette, the feeder engages with the rear end of the upper wall in the same manner as shown in FIGS. Thus, even when the back surface of the cassette is opened, the feeder does not fall off from the back surface opening.
In the stapler body 105 corresponding to the cassette used in the third embodiment, the frame gap 66 that is essential in the first embodiment is not necessary. For this reason, the height of the stapler body and the height of the frame can be lowered by at least 2 to 3 mm. As a result, unique features in design can be obtained, and the storage space can be reduced as much as possible.

  In Example 4, a cassette having no flange on the side wall and having a flange only on the upper wall is used. The configuration and function of the upper wall flange are the same as those of the upper wall flange of the first embodiment. The case according to Example 4 is shown in FIGS. 58 and 59 show the cassette, and FIGS. 60 to 62 show the engagement between the cassette and the stapler body. That is, the cassette 110 has an upper wall flange 113. In other words, the upper wall flange 113 is bifurcated in the major axis direction, and the upper wall opening 114 is provided in a portion between the two. As shown in FIGS. 61 and 62, the feeder feed flange of the feeder feed 118 enters the upper wall opening 114, and the feeder feed 118 slides along the upper wall opening 114 to feed the feeder.

In Example 5, a cassette having no flange on either the upper wall or the side wall is used as the cassette. The case according to the fifth embodiment is shown in FIGS. 63, 64, 70 to 74, 78, and 52. FIG. That is, as shown in FIGS. 63 and 64, the cassette has neither an upper wall flange nor a side wall flange. The function of the upper wall rear end 132 is the same as in the second, third, and fourth embodiments. In the fifth embodiment, since there is no flange, as shown in FIG. 70, FIG. 71, FIG. 52, etc., the hook-shaped body formed by the side wall 139 of the stapler body 140 and the bottom wall of the stapler body is to receive the cassette. Will work. That is, the cassette is positioned with respect to the stapler body by closely fitting the inner periphery of the bowl-shaped body of the stapler body and the outer periphery of the cassette. In the figure, the case where the bowl-shaped body covers most of the cassette is shown, but it does not cover most of the cassette and may cover a part of the cassette.
In FIG. 52, there is a case where the mechanism for feeding the feeder forward is a pull spring using a roller (Example 1), and the cassette does not have a flange on the upper wall and the side wall (Example 5). It is shown. Needless to say, it is possible to combine the structure of the cassette according to the fifth embodiment with a mechanism that feeds other feeder feed described later forward.
In Example 5, since the external shape of the cassette is simple, it is easy to manufacture the cassette. Moreover, since the fitting part of a cassette and a stapler main body is wider than another Example, both are firmly integrated and a more precise needle can be implement | achieved.

Example 6 is a case where the mechanism for feeding the feeder forward is by a push spring. The case according to Example 6 is shown in FIGS. 60, 61, 62, 65, 67 to 70, and 72 to 74. That is, the sixth embodiment can be applied regardless of the presence or absence of the flange of the cassette and the position of the cassette. 60 to 62 show a state in which the mechanism for feeding the feeder forward is a push spring, and the frame upper lid 120 is attached. 67 to 69 show a state in which the mechanism for feeding the feeder forward is a push spring and the frame upper lid 120 is not attached. As shown in FIG. 65, the feeder feed 118 is provided with a feeder hole 124, and a pair of feet 125 is provided on the bottom wall of the feeder.
As shown in FIGS. 67, 68, and 70, a front hole 127 is provided in the front wall of the frame, and a rear hole 129 is provided in the rear wall. Feed the feeder bar 122 and the spring through the feeder hole 124 of the feeder 118. The feeder bar 122 is made of a material that can be bent to some extent, such as hard plastic. The front end (or rear end) of the feeder bar 122 to which the feeder and the spring are attached is fitted into the front hole 127, and then bent so as to lift the vicinity of the center of the feeder bar, and the rear end (or front end) is inserted into the rear hole 129. Fit. At this time, as shown in FIG. 68 and the like, the foot 125 of the feeder 118 is positioned so as to protrude below the middle wall of the frame. If the cassette is further loaded from the front of the stapler body, the foot 125 of the feeder feed 118 is engaged with the cassette, and the feeder feed 118 is pressed backward. As a result, a mechanism for feeding the feeder forward by the push spring is configured. The feeder feed 118 presses the feeder, and the feeder presses the staple forward. As a result, the staple is pressed forward by the push spring. Further, the frame upper lid 120 is attached so that the feeder feed 118 does not come off upward (FIGS. 60 to 62, FIG. 70), and the mechanism according to the sixth embodiment is completed.
In the sixth embodiment, since the structure is relatively simple, the assembly is easy and there are few failures.

Example 7 is a case where a tension spring is used for the mechanism for feeding the cassette feed forward. The case according to Example 7 is shown in FIGS. The feeder feed 145 is provided with a feeder feed shaft 147, and the stapler main body is provided with a main body shaft 148. One end of the tension spring 146 is attached to the main body shaft 148, and the other end is attached to the feeder feed shaft 147. The feeder feed 145 is provided with a pair of hooks 149, and the hooks 149 press the feeder in the cassette forward as in the first and sixth embodiments.
In Example 7, since the structure is relatively simple, assembly is easy, and there are few failures.

Example 8 is a case where there is no feeder top cover. The case according to Example 8 is shown in FIGS. 66, 71, 72 to 77. The feeder feed 128 according to the eighth embodiment is provided with a foot hook 137 so that the feeder feed 128 does not disengage upward (FIG. 66). As clearly shown in FIGS. 74 and 77, in the feeder feed 128 according to the eighth embodiment, the foot hook 137 engages with the hook receiver 142 provided on the middle wall of the frame, so that the feeder feed moves upward. It will not come off.
Except for the configuration of feeder feeding and receiving and the configuration without the feeder top cover, the mechanism of the eighth embodiment is similar to that of the sixth embodiment as shown in FIGS. 71, 72, 73, 75, and 76. It is the same. In addition, in each drawing, only the case of feeder feeding used for the push spring is shown, but a feeder foot used for the tension spring (FIG. 80) is provided with a similar foot hook so that the feeder spring does not use the feeder top cover. It is also possible to do.
In Example 8, since an upper cover is unnecessary, a member is reduced by one point. Thereby, manufacturing cost and a manufacturing process can be reduced.

The invention's effect

The following describes the features common to all the inventions related to the present application, that is, the effects brought about by the absence of a spring in the cassette.
Since there are no springs in the cassette, it is very easy to use up the staples and discard the cassette.
There are no springs in the cassette and the frame can be a single molded part from the cassette manufacturing process. As a result, the cassette has three points: frame, staple, and feeder. That is, the number of parts is half of the conventional cassette type stapler shown in FIG. As a result, the following effects are derived.
The assembling work is extremely simple, in which staples are loaded into a cassette and a feeder is mounted, so that anyone can work. Therefore, the skill of the operator is not necessary, and automatic assembly is possible. Thus, labor costs are reduced. This also leads to a reduction in production costs.
Further, the stapler can be reduced in weight by reducing the number of parts. In addition, there are only two molds required for parts production, so the price is greatly reduced.
Further, the cassette can be easily disassembled, and the parts can be reused.
Since the frame can be integrally formed, sufficient strength can be secured.
By making it springless, the stress inside the cassette is eliminated, the required strength of the parts is reduced, and materials that could not be used due to insufficient strength such as recycled materials can be used.
The end point of the cassette is opened by springless, and the degree of freedom of design is increased.

FIG. 1 is a right side view of a cassette-type stapler according to the present application.
FIG. 2 is a top view of the cassette-type stapler according to the present application.
FIG. 3 is a bottom view of the cassette-type stapler according to the present application.
FIG. 4 is a front view of the cassette-type stapler according to the present application.
FIG. 5 is a rear view of the cassette-type stapler according to the present application.
FIG. 6 is a partial cross-sectional explanatory view of the cassette-type stapler according to the first embodiment (a state in which no cassette is mounted) viewed from the right side.
FIG. 7 is a partial cross-sectional explanatory view of the cassette-type stapler according to the first embodiment (a state where the cassette is in the middle of attachment) viewed from the right side.
FIG. 8 is a partial cross-sectional explanatory view of the cassette-type stapler according to the first embodiment (a state where the cassette is mounted) viewed from the right side.
FIG. 9 is a partial cross-sectional explanatory view of the cassette-type stapler according to the first embodiment as viewed from the right side.
FIG. 10 is a perspective view of feeder feeding according to the first embodiment.
FIG. 11 is a perspective view illustrating a part of the cassette and the blade according to the first embodiment.
FIG. 12 is a perspective view of the feeder according to the first embodiment.
FIG. 13 is a perspective view of the feeder according to the first embodiment.
FIG. 14 is a perspective view of the feeder according to the first embodiment.
FIG. 15 is an explanatory diagram illustrating engagement between the cassette and the feeder according to the first embodiment.
FIG. 16 is a plan view of the cassette according to the first embodiment (when staples are not loaded).
FIG. 17 is a right side view of the cassette according to the first embodiment.
FIG. 18 is a bottom view of the cassette according to the first embodiment.
FIG. 19 is a plan view of the cassette (a state in which staples are loaded) according to the first embodiment.
FIG. 20 is a cross-sectional explanatory view of the cassette according to the first embodiment (a state in which staples are not loaded) viewed from the right side.
21 is a cross-sectional view of the cassette according to FIG. 20 taken along the line AA ′.
FIG. 22 is a rear view of the cassette according to the first embodiment (a state in which staples are not loaded).
FIG. 23 is a cross-sectional explanatory view of the cassette according to the first embodiment (a state in which staples are loaded) viewed from the right side.
24 is a cross-sectional view taken along the line BB ′ of FIG.
FIG. 25 is a cross-sectional explanatory view of the cassette according to the first embodiment (a state in which a staple is being loaded) viewed from the right side.
FIG. 26 is a cross-sectional explanatory view of the feeder according to the first embodiment and the feeder feed viewed from the right side.
FIG. 27 is an explanatory view of the engagement between the feeder and the feeder feeding according to the first embodiment as viewed from above.
FIG. 28 is an explanatory view of the engagement between the feeder and the feeder feeding according to the first embodiment when viewed from the bottom.
FIG. 29 is an explanatory view of the engagement between the feeder and the feeder feeding according to the first embodiment when viewed from the back.
FIG. 30 is an explanatory diagram viewed from the front of the feeder and feeder feeding according to the first embodiment.
FIG. 31 is a top view of the frame (a state in which the feeder spring and the upper cover are not attached) according to the first embodiment.
FIG. 32 is a cross-sectional explanatory view of the frame according to the first embodiment (a state in which the feeder spring and the upper lid are not attached) viewed from the right side.
FIG. 33 is a front view of the frame (a state in which the feeder spring and the upper cover are not attached) according to the first embodiment.
FIG. 34 is a bottom view of the frame according to the first embodiment (a state in which the feeder spring and the upper cover are not attached).
35 is a cross-sectional view taken along line AA ′ of FIG.
36 is a cross-sectional view taken along the line BB ′ of FIG.
37 is a cross-sectional view taken along the line CC ′ of FIG.
FIG. 38 is a top view of the upper lid according to the first embodiment.
FIG. 39 is a right side view of the upper lid according to the first embodiment.
FIG. 40 is a bottom view of the upper lid according to the first embodiment.
41 is a partial front view of the cassette according to the first embodiment attached to the stapler body (FIG. 8).
42 is a cross-sectional view taken along line AA ′ of FIG.
43 is a cross-sectional view taken along the line BB ′ of FIG.
FIG. 44 is a cross-sectional explanatory view of the frame according to the first embodiment (a state in which the upper lid is attached but the feeder spring is not attached) viewed from the right side.
45 is a cross-sectional view taken along the line AA ′ of FIG.
46 is a cross-sectional view taken along the line BB ′ of FIG.
47 is a cross-sectional view taken along the line CC ′ of FIG.
48 is a cross-sectional view taken along the line DD ′ of FIG.
FIG. 49 is a top view of a frame (a state in which a feeder spring or the like is attached but an upper lid is not attached) according to the first embodiment.
FIG. 50 is a cross-sectional explanatory view of the frame according to the first embodiment (a state in which a feeder spring or the like is attached but an upper lid is not attached) viewed from the right side.
FIG. 51 is a cross-sectional explanatory view of the frame according to the first embodiment (a state in which a feeder spring or the like and an upper lid are attached) viewed from the right side.
FIG. 52 is an explanatory diagram showing a frame and feeder feeding used in the fifth embodiment or the first embodiment.
FIG. 53 is an explanatory diagram illustrating a part of the cassette and the frame according to the third embodiment.
FIG. 54 is a partial perspective view of the cassette according to the third embodiment as viewed from above the back surface.
FIG. 55 is a partial front view when the cassette according to the third embodiment is attached to the staple body.
FIG. 56 is a view corresponding to the cross-sectional view taken along the line AA ′ of FIG. 8 in the case where the view of the cassette type stapler according to the third embodiment is illustrated as in FIG.
FIG. 57 is a view corresponding to the BB ′ cross-sectional view of FIG. 8 when a view like FIG. 8 is shown with respect to the cassette type stapler according to the third embodiment.
FIG. 58 is a perspective view of the cassette shown in the fourth embodiment.
FIG. 59 is a partial perspective view of the cassette according to the fourth embodiment as viewed from above the back surface.
FIG. 60 is a top view of a frame (with a feeder spring and an upper lid attached) according to the fourth and sixth embodiments.
FIG. 61 is an explanatory cross-sectional view of a frame (a state in which a feeder spring and an upper lid are attached) according to the fourth and sixth embodiments when viewed from the right side.
62 is a cross-sectional view taken along line AA ′ of FIG.
FIG. 63 is a perspective view of the cassette according to the fifth embodiment.
FIG. 64 is a partial perspective view of the cassette according to the fifth embodiment as viewed from above the back surface.
FIG. 65 is a perspective view of feeder feeding according to the sixth embodiment.
FIG. 66 is a perspective view of feeder feeding according to the seventh embodiment.
FIG. 67 is a top view of a frame (a state in which a feeder spring and an upper cover are not attached) according to the sixth embodiment.
FIG. 68 is a cross-sectional explanatory view of the frame according to the sixth embodiment (a state in which the feeder spring and the upper cover are not attached) viewed from the right side.
69 is a cross-sectional view taken along the line AA ′ of FIG.
FIG. 70 is an explanatory diagram of frames according to the fifth and sixth embodiments.
FIG. 71 is an explanatory diagram of frames according to the fifth and seventh embodiments.
FIG. 72 is a top view of a frame (with a feeder spring and an upper lid attached) according to the fifth and seventh embodiments.
FIG. 73 is a cross-sectional explanatory view of the frame (a state in which a feeder spring and an upper cover are attached) according to the fifth and first embodiments when viewed from the right side.
74 is a cross-sectional view taken along line AA ′ of FIG.
FIG. 75 is a top view of a frame (a state in which a feeder spring and an upper lid are attached) according to the third, sixth, and seventh embodiments.
FIG. 76 is an explanatory cross-sectional view of a frame (a state in which a feeder spring and an upper cover are attached) according to Example 3, Example 6, and Example 7 as viewed from the right side.
77 is a cross-sectional view taken along line AA ′ of FIG.
FIG. 78 is a top view of a frame (a state in which a feeder spring or the like is attached but an upper lid is not attached) according to the seventh embodiment.
FIG. 79 is a cross-sectional explanatory view of the frame according to the eighth embodiment (a state in which a feeder spring or the like is attached but an upper lid is not attached) viewed from the right side.
FIG. 80 is a perspective view of feeder feeding according to the eighth embodiment.
FIG. 81 is a partial perspective view of a cassette used for a cassette-type stapler as seen from the front upper side.
FIG. 82 is a cross-sectional view of a conventional cassette-type stapler.
FIG. 83 is a cross-sectional view showing a conventional cassette.
FIG. 84 is a perspective view of a conventional cassette as viewed from the front upper side.
FIG. 85 is a perspective view of a conventional cassette as seen from the upper rear side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Stapler 2 ... Handle 3 ... Frame 4 ... Base 5 ... Bottom cover 6 ... Hook 7 ... Cassette 8 ... Frame gap 9 ... Groove 11 ... -Curve 12 ... Grooves 15-17 ... Spring 18 ... Frame shaft 19 ... Frame stopper 20 ... Hook rear end 21 ... Hook pressing part 22 ... Claws 23, 24・ Stopper end a, b
25 ... Feeder feed 26a, 26b ... Feeder feed flanges 27a, 27b ... Feeder feed side wall 28 ... Feeder feed notch 29 ... Feeder feed bottom wall 30a, 30b, 31a, 31b ... Side wall flanges 32, 33a, 33b ... Upper wall flange 34 ... Upper openings 35a, 35b ... Cassette side wall 36 ... Cassette upper rear end wall 37 ... Hole 38 ... Cassette bottom wall 40 .. Feeder 41a, 41b ... Feeder side wall 42 ... Feeder front gap 43 ... Feeder upper wall 44a, 44b ... Feeder upper wall groove 45 ... Feeder tongue 46 ... Convex portion 47 ..Taper 48 ... Feeder inner wall 49, 49 '... Friction protrusion 50 ... Staple 51 ... Bottom wall outer protrusion 52 ... Upper rear end 53 ... Staple guide Member 55 ... Staple hole 60 ... Feeder hook 61 ... Feeder spring 62 ... One end 63 ... Other end 69 ... Frame gap 70 ... Handle shaft 71 ... Handle spring 72 .... Reinforcement 73 ... Blade 75 ... Handle spring lower end 76 ... Cassette 77 ... Blade 78 ... Side wall flange 79 ... Upper opening 80 ... Upper wall 81, 82 ... Frame Side wall, frame inner wall 83 ... square hole 84, 85 ... front shaft, rear shaft 86 ... single groove 87 ... edge 88 ... frame shaft hole 89 ... cassette gap 90 ...・ Frame upper lid 92 to 94... Beam 100... Cassette 102... Upper wall rear end 103 .. Side wall flange 105 .. Stapler main body 108. Set 112 ... Rear end 113 of upper wall ... Upper wall flange 114 ... Upper wall opening 115 ... Frame side wall 118 ... Feeder feed 119 ... Feeder spring 120 ... Frame upper lid 121 ... Feeder bar front end 122 ... Feeder bar 123 ... Feeder bar rear end 124 ... Feeder bar hole 125 ... Foot 126 ... Frame inner wall 127 ... Front hole 128 ... Feeder 129 ... -Rear hole 130-Cassette 132-Frame rear end wall 134, 135-Foot 137-Foot hook 140-Stapler main body 141-Main body opening 142-Hook receiver 144-・ Taper 145 ... Feeder feed 146 ... Spring 147 ... Feeder feed shaft 148 ... Main body shaft 149 Foot 150 ... cassette 151 ... base 152 · handle 153 ... projection 154 ... Feeder 155 ... spring 156 ... guide rod 157 ... staple

Claims (28)

On the stand,
Means for positioning the cassette;
Means for feeding the staples in the cassette forward;
Means for pushing the staples out of the cassette;
A stapler main body of a cassette-type stapler, comprising: base means having means for folding and binding staples. The stapler body according to claim 1, wherein the cassette is attached to the stapler body by being inserted into the frame in the longitudinal direction of the cassette. The stapler body according to claim 2, wherein the cassette is inserted from the front of the stapler body. The stapler body according to claim 1, wherein a convex portion provided on one of the cassette and the mount and a concave portion provided on the other are fitted to determine a position of the cassette. The stapler body according to claim 4, wherein both the convex portion and the concave portion are provided in a rail shape in the longitudinal direction of the cassette. The stapler body according to claim 5, wherein a vertical width of the concave portion is wider than a vertical width of the convex portion at a longitudinal end portion of the stapler main body. Means for positioning the cassette;
The stapler body according to claim 1, wherein at least a part of the cassette is closely fitted in a cavity provided in the mount. The stapler body according to claim 7, wherein a taper is provided at an end portion in the front-rear direction of the cavity. The means for feeding the staples forward is due to feeder feeding for feeding the feeder in the cassette forward, and means for feeding the feeder feed forward,
The stapler body according to claim 1, wherein when the cassette is attached, the feeder feed is placed at a position in contact with the feeder. The stapler body according to claim 9, wherein a friction member is provided in the feeder. The stapler body according to claim 9, wherein the means for feeding the feeder forward is due to elasticity of an elastic body provided between the feeder feed and the gantry. The stapler body according to claim 11, wherein the elastic body is a tension spring, one end of the tension spring is attached to the front of the gantry, and the other end is attached to the feeder feed. The elastic body is a tension spring;
One end of the tension spring is attached to the rear of the gantry, the other end is attached to the feeder feed,
The stapler body according to claim 11, wherein a halfway portion of the tension spring is engaged with a roller provided in front of the gantry and the direction of the force of the tension spring is folded back. The elastic body is a push spring;
The stapler body according to claim 11, wherein the direction of the force by the pressing spring is kept constant by the guide means. The feeder feed is provided with a foot for guiding the forward and backward sliding of the feeder feed, and the foot is provided with a hook for locking upward movement of the feeder feed. Item 15. The stapler body according to Item 10. The engagement between the cassette and the stapler body includes a first engagement and a second engagement;
The first engagement causes the cassette to be placed in a position where a means for pushing the staples out of the cassette is operable;
The stapler body according to claim 1, wherein the second engagement is configured to temporarily stop the cassette from popping out forward of the stapler body when the first engagement is released. In the holder,
A staple and a feeder for feeding the staple forward in cooperation with means provided on the stapler body;
A means for positioning the cassette with respect to the stapler body is provided,
Means for positioning the cassette relative to the stapler body;
It is due to the fitting of the convex portion provided on either the cassette or the stapler body and the concave portion provided on the other,
A cassette of a cassette-type stapler in which the convex portion or the concave portion is provided in a rail shape in the longitudinal direction of the cassette. The cassette according to claim 17, wherein the convex portion or the concave portion is provided on a side surface of the cassette. The cassette according to claim 17, wherein the convex portion or the concave portion is provided on an upper surface of the cassette. In the holder,
A staple and a feeder for feeding the staple forward in cooperation with means provided on the stapler body;
A means for positioning the cassette with respect to the stapler body is provided,
Means for positioning the cassette relative to the stapler body;
A cassette of a cassette-type stapler, characterized in that at least a part of the outer periphery is an outer periphery closely fitting with an inner periphery of a cavity of a stapler main body to which the cassette is attached. Means for positioning the cassette with respect to the stapler body is provided, and a cassette holder for a cassette-type stapler that stores and uses staples and a feeder that feeds the staples forward in cooperation with the means provided on the stapler body. . Means for positioning the cassette relative to the stapler body;
It is due to the fitting of the convex portion provided on either the cassette or the stapler body and the concave portion provided on the other,
The holder according to claim 21, wherein the convex portion or the concave portion is provided in a rail shape in a longitudinal direction on a side surface of the cassette. A stapler body comprising: means for positioning the cassette on the frame; means for feeding the staples in the cassette forward; means for pushing the staples out of the cassette; and base means having an anvil;
A cassette in which a holder and a feeder for feeding the staple forward in cooperation with means provided on the stapler body are housed in the holder, and means for positioning the cassette with respect to the stapler body are provided.
A cassette-type stapler. 24. The means for positioning the cassette with respect to the stapler main body is formed by fitting a convex portion provided on one of the cassette or the stapler main body and a concave portion provided on the other. The cassette-type stapler described in 1. The cassette-type stapler according to claim 23, wherein the convex portion or the concave portion is provided in a rail shape in the longitudinal direction of the cassette. The cassette-type stapler according to claim 25, wherein the convex portion or the concave portion is provided on a side surface of the cassette. The cassette-type stapler according to claim 25, wherein the convex portion or the concave portion is provided on an upper surface of the cassette. 24. The cassette-type stapler according to claim 23, wherein at least a part of the outer periphery is an outer periphery closely fitting with an inner periphery of a cavity of a stapler main body to which the cassette is attached.

Images