stapler

Abstract

To provide a device capable of supplying lubricant to a surface on which two members are brought into contact with each other.SOLUTION: A device 1 such as a stapler includes a first member 2 having a first surface 20, and a second member 3 having a second surface 30 partially or entirely in contact with the first surface 20. The first member 2 and the second member 3 are constituted to relatively move, and the first member 2 has a lubricant flow passage 5 having an opening 50 opened to the first surface on a surface 23a other than the first surface 20.SELECTED DRAWING: Figure 1A

Description

[Technical Field]

[0001] Equipped with two parts that move in contact with each other with relative movement stapler Regarding. [Background technology]

[0002] In devices including, for example, a cam mechanism, a gear mechanism, or a hinge mechanism, which are made up of two members (a first member and a second member) that move while in contact with each other through relative movement, a lubricant such as grease may be applied to the sliding surfaces (contact surfaces) of the two members to improve the slidability and durability of the sliding surfaces.Technology has been proposed in which a grease reservoir recess for storing grease is provided on the sliding surface of at least one of the first and second members, enabling the grease to be supplied to the sliding surfaces from the grease reservoir recess (see, for example, Patent Document 1).

[0003] Furthermore, in a hinge mechanism that includes a shaft that serves as the rotation axis of a rotating member and a bracket that has a cylindrical portion that wraps around the outer periphery of the shaft and generates sliding resistance through elastic force, a technology has been proposed in which a groove-shaped grease reservoir hole that is inclined relative to the rotation direction of the shaft penetrates the cylindrical portion (see, for example, Patent Document 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-214328 [Patent Document 2] Patent No. 6272148 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the technology of forming a grease reservoir by providing a recess or through-hole on the sliding surface of a component has the problem that the volume of the grease reservoir must be large to hold or contain a sufficient amount of grease so that the grease does not run out during repeated sliding. However, if the grease reservoir is made larger, the area of ​​the sliding surface decreases, which increases the surface pressure and accelerates wear. Furthermore, it leads to a decrease in the strength of the sliding surface.

[0006] Therefore, we have suppressed the depletion of lubricant on the sliding surfaces while suppressing the reduction in the surface area where the two components come into contact, i.e., the sliding surfaces. stapler to provide. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems, the stapler comprises: A stapler including a stapler unit that supplies staples and ejects the staples into a paper stack, and a binding unit that cuts and bends the staple legs of the staples ejected by the stapler unit, having a first surface , which is connected to the motor shaft and rotates a first member and a second member having a second surface that is in contact with the first surface in part or in whole, the first member and the second member being configured to move relative to each other; the first member is constituted by a flat cam, the first surface is constituted by a cam surface formed on the outer periphery of the first member, the second member is a cam follower that follows the cam surface in response to relative movement between the first member and the second member, and the second surface is constituted by the outer periphery of the second member; The first member has a lubricant container with an opening on the first surface. Multiple flow path a container portion that communicates with the plurality of flow paths and contains the lubricant to be supplied to the plurality of flow paths; With A plurality of openings are provided in different positions on the first surface corresponding to the plurality of flow paths, and the flow paths are formed by recessed grooves that are provided on a surface of the flat plate-like first member that is different from the first surface and do not penetrate to the other surface. .

[0008] stapler The lubricant is supplied from the opening through the flow path to the first surface of the first member that comes into contact with the second surface of the second member. [Effects of the Invention]

[0009] As mentioned above stapler According to the present invention, since the lubricant can be held or contained in the flow path, it is not necessary to enlarge the opening of the first surface, and it is possible to prevent a reduction in the area of ​​the sliding surface. Furthermore, since the required amount of lubricant can be held in the flow path, it is possible to prevent the lubricant from running out. [Brief explanation of the drawings]

[0010] [Figure 1A] 1 is a side view of a main part showing an example of a stapler as an embodiment of the device of the present invention. [Figure 1B] 1 is a side view showing an example of a stapler as an embodiment of the device of the present invention. [Figure 2A] FIG. 2 is a perspective view showing an example of a first member constituting the stapler of the present embodiment. [Figure 2B] 3 is a cross-sectional view showing an example of a first member constituting the stapler of the present embodiment. FIG. [Figure 3A] FIG. 10 is a perspective view showing a modified example of the first member. [Figure 3B] FIG. 10 is a perspective view showing a modified example of the first member. [Figure 3C] FIG. 10 is a perspective view showing a modified example of the first member. [Figure 3D] FIG. 10 is a perspective view showing a modified example of the first member. [Figure 3E] FIG. 10 is a perspective view showing a modified example of the first member. [Figure 3F] FIG. 10 is a perspective view showing a modified example of the first member. [Figure 4A] 1 is a side view showing an example of an internal configuration of a driving tool as an embodiment of the device of the present invention. [Figure 4B] FIG. 2 is a side view showing an example of a contact arm as a first member constituting the driving tool. [Figure 5A] 1 is a side cross-sectional view showing an example of the internal configuration of a drill tool as an embodiment of the device of the present invention. [Figure 5B] 1 is an overall perspective view showing an example of a gear as a first member constituting a drill tool. FIG. [Figure 5C] 1 is a perspective view of a main part showing an example of a gear as a first member constituting a drill tool. FIG. [Figure 6A] 1 is a side cross-sectional view showing an example of the internal configuration of a printer as an embodiment of the device of the present invention. [Figure 6B] FIG. 2 is a plan view showing an example of a moving plate as a first member that constitutes the printer. [Figure 6C] FIG. 2 is a perspective view showing an example of a moving plate as a first member that constitutes the printer. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, the present invention will be described with reference to the drawings. stapler An embodiment of the present invention will be described.

[0012] <An example of an embodiment of the device of the present invention> Fig. 1A is a side view of a main part showing an example of a stapler as an embodiment of the device of the present invention, Fig. 1B is a side view showing an example of a stapler as an embodiment of the device of the present invention, Fig. 2A is a perspective view showing an example of a first member constituting the stapler of this embodiment, and Fig. 2B is a cross-sectional view showing an example of the first member constituting the stapler of this embodiment.

[0013] The device 1 shown in FIG. 1A is, in this example, the stapler 11A shown in FIG. 1B, and comprises a first member 2 having a first surface 20 and a second member 3 having a second surface 30 that is in partial or complete contact with the first surface 20.

[0014] The first member 2 is composed of a flat cam, and the first surface 20 is composed of a cam surface of a predetermined shape formed on the outer periphery of the first member 2. The second member 3 is a cam follower that follows the cam surface and is composed of a cylindrical shaft. The second surface 30 is composed of the outer periphery of the second member 3.

[0015] The first member 2 and the second member 3 are configured to move relative to each other. The first member 2 rotates around a shaft 21 as a fulcrum.

[0016] The second member 3 is provided on the actuating member 31. In this example, the second member 3 is provided integrally with the actuating member 31. The actuating member 31 is a plate-shaped member that rotates around a shaft 32 as a fulcrum.

[0017] The second member 3 is provided at a position a predetermined distance from the shaft 32, and protrudes from the actuating member 31 in a direction parallel to the shaft 32. As a result, the second member 3 moves on an arc whose radius is the distance from the shaft 32 to the second member 3 as the actuating member 31 rotates around the shaft 32 as a fulcrum.

[0018] The shaft 21 of the first member 2 and the shaft 32 of the actuating member 31 are not provided coaxially. In addition, the second member 3 is not provided coaxially with the shaft 21 of the first member 2. As a result, the second member 3 is configured to be movable in the radial direction of the rotational movement of the first member 2 around the shaft 21 as a fulcrum, due to the rotational movement of the actuating member 31 around the shaft 32 as a fulcrum.

[0019] Additionally, the second member 3 is biased in a direction in which the second surface 30 is pressed against the first surface 20. When the first member 2 rotates around the shaft 21 as a fulcrum, the second member 3, whose second surface 30 slides along the first surface 20, moves following the shape of the first surface 20.

[0020] The actuating member 31 is provided with an action part 33 at a position a predetermined distance from the shaft 32, which applies a force to the work animal 4. The first member 2 rotates about the shaft 21 as a fulcrum, and the second member 3 moves following the shape of the first surface 20, causing the actuating member 31 to rotate about the shaft 32 as a fulcrum. When the actuating member 31 rotates, the action part 33 moves on an arc whose radius is the distance from the shaft 32 to the action part 33, causing the work animal 4 to move.

[0021] The first member 2 has a flow path 5 that holds a lubricant such as grease and through which the lubricant passes. The flow path 5 is provided on a surface of the flat plate-shaped first member 2 that is different from the first surface 20. Specifically, the flow path 5 is provided on the front surface 23a, which is one of the front and back surfaces of the first member 2, and is configured as a concave groove that does not penetrate to the other surface, the back surface 23b. The front and back surfaces of the first member 2 are continuous with the first surface 20 and are surfaces that are approximately perpendicular to the first surface 20.

[0022] One end of the flow path 5 is an opening 50 that opens into the first surface 20, and the lubricant held in the flow path 5 can flow out to the sliding surface from this opening 50. The opening 50 is provided in the first surface 20 at a part of the thickness direction of the first member 2 indicated by the arrow S1. The thickness direction of the first member 2 is a direction that intersects with the direction in which the first member 2 and the second member 3 move relative to each other.

[0023] Lubricant is supplied from the opening 50 through the flow path 5 to the first surface 20 of the first member 2, against which the second surface 30 of the second member 3 slides. This reduces wear on the first surface 20 of the first member 2 and the second surface of the second member 3. Furthermore, since the flow path 5 is provided on a surface other than the first surface 20, such as the surface 23a of the first member 2, the length, width, depth, etc. of the flow path 5 can be set relatively freely. This makes it easy to form a flow path capable of holding a required amount of lubricant. Since the required amount of lubricant can be held in the flow path 5, there is no need to form a large opening or recess in the sliding surface, i.e., the first surface 20, and reduction in the area of ​​the sliding surface can be suppressed. Furthermore, if a sufficient amount of lubricant can be held in the flow path 5, the lubricant is continuously supplied from the flow path 5 to the opening 50 even during repeated sliding, thereby preventing depletion of the lubricant on the sliding surface.

[0024] The first member 2 rotates in the direction of arrow A around the axis 21 as a fulcrum, and a change point 22 is provided on the first surface 20 where the distance from the point where the second member 3 contacts the first surface 20 to the axis 21 changes in a direction that increases.

[0025] When the first member 2 rotates in the direction of arrow A and the portion of the first surface 20 where the second member 3 contacts passes through the change point 22, the load applied to the first surface 20 and the second surface 30 increases. When the load applied to the first surface 20 and the second surface 30 increases, the first surface 20 and the second surface 30 become more susceptible to wear.

[0026] Therefore, the opening 50 may be provided upstream of the portion where the greatest load is applied within the range where the first surface 20 and the second surface 30 come into contact when the first member 2 and the second member 3 move relative to each other. In this example, the opening 50 is provided downstream of the change point 22 and upstream of the range E1 where the greatest load is likely to be applied within the range where the second member 3 comes into contact with the first surface 20 during the operation of the first member 2 rotating in the direction of arrow A around the axis 21 as a fulcrum.

[0027] This allows lubricant to be supplied to areas of the first surface 20 and the second surface 30 that are prone to wear, thereby further suppressing wear.

[0028] The first member 2 may have a plurality of flow paths 5. Each flow path 5 has a plurality of openings 50 corresponding to the plurality of flow paths 5 provided at different positions on the first surface 20 in the range where the first surface 20 and the second surface 30 come into contact when the first member 2 and the second member 3 move relative to each other.

[0029] The first member 2 may include a storage section 6 that communicates with the flow path 5 and stores the lubricant to be supplied to the flow path 5. The storage section 6 is provided on a surface of the flat first member 2 that is different from the first surface 20. In this example, the storage section 6 is configured by providing a hole that penetrates from the front surface 23a to the back surface 23b of the first member 2. In this example, the volume of the storage section 6 is configured to be equal to or larger than the volume of the flow path 5, but it does not necessarily have to be equal to or larger than the volume of the flow path 5. In a configuration that includes multiple flow paths 5, each flow path 5 communicates with the storage section 6. Note that the storage section 6 may also be configured by providing a bottomed hole (recess) in the front surface 23a of the first member 2 that does not penetrate to the back surface 23b. In the example shown in FIG. 2A, two flow paths 5 and one storage section 6 connected to the two flow paths 5 are provided. However, a storage section 6 may be provided for each of the multiple flow paths 5 (e.g., two storage sections 6 for two flow paths 5).

[0030] The first member 2 rotates around the shaft 21 as a fulcrum, the second surface 30 of the second member 3 moves following the shape of the first surface 20, and the operating member 31 rotates around the shaft 32 as a fulcrum, causing the first member 2 and the second member 3 to move relatively. The storage section 6 is provided in a location where the load applied to the first member 2 is low when the first member 2 and the second member 3 move relatively.

[0031] The stapler 11A includes a not-shown ejection unit 12A that supplies staples and ejects the staples into a paper stack, and a binding unit 13A that cuts and bends the staple legs of the staples ejected by the ejection unit 12A.

[0032] In stapler 11A, a first member 2 is connected to the shaft of a motor (not shown), and first member 2 rotates in the direction of arrow A around shaft 21 as a fulcrum. When first member 2 rotates around shaft 21 as a fulcrum, second member 3, whose second surface 30 rubs along first surface 20, moves following the shape of first surface 20. When first member 2 rotates once in the direction of arrow A around shaft 21 as a fulcrum, operating member 31 to which second member 3 is attached swings, and workpiece 4 moves back and forth in the direction of arrow B. Because operating member 31 is biased by a spring (not shown) in a direction that brings it into contact with first member 2, second member 3 moves following the shape of first surface 20.

[0033] The binding unit 13A moves in a direction toward or away from the ejection unit 12A as the movement of the workpiece 4 is transmitted via a link or the like. The binding unit 13A moves in a direction toward or away from the ejection unit 12A as the first member 2 rotates in the direction of arrow A around the shaft 21 as a fulcrum, causing the second member 3 to move following the shape of the first surface 20 and swinging the operating member 31 to which the second member 3 is attached, and as the workpiece 4 moves back and forth in the direction of arrow B, the binding unit 13A moves in a direction toward the ejection unit 12A and clamps the stack of paper sheets between the binding unit 13A and the ejection unit 12A. The binding unit 13A also moves in a direction away from the ejection unit 12A as the first member 2 further rotates in the direction of arrow A around the shaft 21 as a fulcrum, and releases the clamped stack of paper sheets.

[0034] After the stack of paper sheets is sandwiched between the binding unit 13A and the ejection unit 12A, the ejection unit 12A rotates its shaft 21 in the direction of arrow A, which transmits the motion to a driver (not shown) via a link or the like, causing the foot of the staple to penetrate the stack of paper sheets. Furthermore, the binding unit 13A rotates its shaft 21 in the direction of arrow A, which transmits the motion to a clincher (not shown) via a link or the like, causing the foot of the staple that has penetrated the stack of paper sheets to bend.

[0035] The stapler 11A staples a stack of paper sheets as the first member 2, which is a cam, rotates once in the direction of arrow A. The second member 3, which is a cam follower, moves by following the shape of the first surface 20 as the second surface 30 slides along the first surface 20 of the first member 2.

[0036] A lubricant is supplied from the opening 50 through the flow path 5 to the first surface 20 of the first member 2, on which the second surface 30 of the second member 3 slides. This suppresses wear of the first surface 20 of the first member 2 and the second surface of the second member 3.

[0037] The opening 50 of the flow path 5 is provided in a portion of the first surface 20 in the thickness direction of the first member 2. This prevents a decrease in strength due to the provision of the opening 50, even when the first member 2 is plate-shaped. In the stapler 11A, it is necessary to reduce the thickness of the first member 2 for the purpose of miniaturization. Even in such cases, a decrease in strength due to the provision of the opening 50 in the first surface 2 is prevented. Meanwhile, by providing the flow path 5 on one surface of the first member 2, for example, the surface 23a, it is not necessary to unnecessarily increase the area of ​​the opening 50 exposed on the first surface 20. This prevents an increase in the thickness of the first member 2 and a decrease in its strength, while allowing the lubricant to be stored. In this example, the thickness of the first member 2 along the direction indicated by the arrow S1 in FIG. 2B is 1.2 mm, while the depth and width of the opening 50 along the same direction are 0.1 mm and 0.3 mm, respectively, but these dimensions are not limited to these.

[0038] The surface 23a of the first member 2 is also provided with a storage section 6. The lubricant on the sliding surface tends to decrease from the sliding surface as the sliding is repeated, but at this time, the lubricant held in the storage section 6 and the flow path 5 is supplied (replenished) to the sliding surface through the opening 50. Therefore, the storage section 6 stores an amount of lubricant that will not be depleted on the sliding surface. In this example, the volume of the storage section 6 is configured to be equal to or greater than the volume of the flow path 5, thereby preventing the lubricant from being depleted over a long period of time. Furthermore, the storage section 6 is provided in a location where the load applied to the first member 2 is low when the first member 2 and the second member 3 move relative to each other, thereby preventing a decrease in strength due to the provision of the storage section 6.

[0039] 1A, the operating member 31 of the second member 3 rotates about the axis 32 as a fulcrum, changing the location where the second surface 30 and the first surface 20 come into contact. When the first member 2 and the second member 3 move relative to each other, if the lubricant is consumed near the area where the most load is applied in the area where the first surface 20 and the second surface 30 come into contact, wear of the second surface 30 at the area where the most load is applied may progress.

[0040] Therefore, by providing the opening 50 upstream of the portion where the load is applied, the consumption of the lubricant at the portion where the load is applied is suppressed, and the wear of the second surface 30 at the portion where the load is greatest and that contacts the first surface 20 is suppressed.

[0041] <Modification of the first member> 3A to 3F are perspective views showing modified examples of the first member, and show other embodiments of the flow path and the storage portion.

[0042] 3A, the flow path 5 may be configured to be provided inside the first member 2 and to communicate with an opening 50 provided in the first surface 20, without being exposed on the front surface 23a and back surface 23b of the first member 2. The storage section 6 is a bottomed recess that communicates with the flow path 5 and has a bottom formed on the back surface 23b of the first member 2 and is exposed on the front surface 23a. However, the storage section 6 may also be provided inside the first member 2 without being exposed on the front surface 23a and back surface 23b.

[0043] Furthermore, the flow path 5 may not be formed by carving a recess in the front surface 23a or the back surface 23b of the first member 2, or may be formed inside the first member 2, but may be formed by a pair of flow path forming protrusions 25 provided at a predetermined interval on the front surface 23a of the first member 2, and a recess between the flow path forming protrusions 25, as shown in Fig. 3B. Furthermore, the storage section 6 may be formed by a pair of storage section forming protrusions 26 provided on the front surface 23a of the first member 2 and communicating with the flow path forming protrusions 25, and a recess between the storage section forming protrusions 26 communicating with the flow path 5. The storage sections 6 may be provided in multiple locations, and the multiple storage sections 6 may be connected by the flow path 5.

[0044] As shown in Fig. 3C, the storage section 6 may not be provided, and the flow path 5 may double as the storage section. Also, as shown in Fig. 3D, the flow path 5 may be configured so that its volume increases by widening its width along the surface 23a of the first member 2 as it moves away from the opening 50, thereby increasing the amount of lubricant that can be stored. In the example shown in Fig. 3D, the flow path 5 may also be considered to double as the storage section.

[0045] Furthermore, in order to extend the length of the flow path 5 and increase the amount of lubricant that can be stored, the linear flow path 5 may be configured to be folded back at multiple points as shown in Figure 3E, or the flow path 5 may be configured to be circular or spiral as shown in Figure 3F.

[0046] <Another embodiment of the device of the present invention> Fig. 4A is a side view showing an example of the internal configuration of a driving tool as an embodiment of the device of the present invention, and Fig. 4B is a side view showing an example of a contact arm as a first member constituting the driving tool. The driving tool 11B is a device that drives consumables such as nails (not shown) into a driving target object using compressed air pressure or the like.

[0047] The driving tool 11B operates by detecting the movement of the contact arm 2B, which is activated when the contact member 12B is pressed against an object to be driven, and the movement of the trigger 13B, which is operated by an operator.

[0048] Contact arm 2B is attached to main body 14B so as to be able to move back and forth in the direction indicated by arrow C. Contact arm 2B constitutes a first member and includes cam surface 20B that constitutes a first surface. Contact arm 2B also includes lubricant flow path 5 that communicates with cam surface 20B, and lubricant storage section 6 that communicates with flow path 5.

[0049] The driving tool 11B is equipped with a cam follower 3B that moves along the cam surface 20B of the contact arm 2B. The cam follower 3B is an example of a second member, and has a cylindrical outer periphery on which a second surface 30B that comes into contact with the cam surface 20B is formed.

[0050] In driving tool 11B, when contact member 12B is pressed against the object to be driven and contact arm 2B moves in the direction of arrow C, cam surface 20B and cam follower 3B rub ​​against each other. Then, cam follower 3B moves following the shape of cam surface 20B, thereby activating a switch (not shown).

[0051] In the contact arm 2B, a lubricant is supplied to the cam surface 20B against which the cam follower 3B rubs through the flow path 5. This suppresses wear of the cam surface 20B of the contact arm 2B and the cam follower 30B.

[0052] Fig. 5A is a side cross-sectional view showing an example of the internal configuration of a drill tool as an embodiment of the device of the present invention, Fig. 5B is an overall perspective view showing an example of a gear as a first member constituting the drill tool, and Fig. 5C is a perspective view of a main part showing an example of the gear as the first member constituting the drill tool. The drill tool 11C is a device that drills a hole in an object by rotating and vibrating a rotating body 12C such as a drill chuck to which a drill (not shown) is detachably attached by the driving force of a motor 13C.

[0053] The drill tool 11C includes a shaft 14C to which the driving force of a motor 13C is transmitted via a first gear 2C1, and a second gear 2C2 that transmits the driving force of the motor 13C to a rotor 12C via the shaft 14C.

[0054] The first gear 2C1 and the second gear 2C2 constitute a first member and include teeth 20C that constitute a first surface. One or both of the first gear 2C1 and the second gear 2C2 include a lubricant flow path 5 that communicates with the teeth 20C via an opening 50. The drill tool 11C includes a gear that meshes with the first gear 2C1 as a second member, and a gear that meshes with the second gear 2C2 as a second member.

[0055] The first gear 2C1 and the second gear 2C2 are supplied with a lubricant through the flow path 5 to the toothed portion 20C where the gears mesh with each other, thereby suppressing wear of the toothed portion 30C.

[0056] Fig. 6A is a side cross-sectional view showing an example of the internal configuration of a printer as an embodiment of the device of the present invention, Fig. 6B is a plan view showing an example of a moving plate as a first member constituting the printer, and Fig. 6C is a perspective view showing an example of a moving plate as the first member constituting the printer. The printer 11D is equipped with a cutter unit 12D that cuts the printing object and a moving plate 2D that actuates the cutter unit 12D.

[0057] The movable plate 2D is attached to the cutter unit 12D so as to be able to move back and forth in the direction indicated by the arrow D. The movable plate 2D constitutes a first member and includes a cam surface 20D that constitutes a first surface. The movable plate 2D also includes a lubricant flow path 5 that communicates with the cam surface 20D, and a lubricant storage section 6 that communicates with the flow path 5.

[0058] The cutter unit 12D includes a cam follower 3D that moves along the cam surface 20D of the moving plate 2D. The cam follower 3D is an example of a second member, and has a cylindrical outer periphery on which a second surface 30D that comes into contact with the cam surface 20D is formed.

[0059] In the printer 11D, when the rotating body 13D is driven to rotate the cam follower 3D, the cam surface 20D and the cam follower 3D rub against each other, and the moving member 2D moves in the direction of the arrow D.

[0060] The moving plate 2D has a cam surface 20D on which the cam follower 3D slides, and a lubricant is supplied to the cam surface 20D through the flow path 5. This reduces wear on the cam surface 20D of the moving plate 2D and the cam follower 30D. [Explanation of symbols]

[0061] 1...Device (11A...Stapler), 12A...Ejection unit, 13A...Binding unit, 2...First member, 20...First surface, 21...Axis, 22...Changing point, 23a...Front surface, 23b...Back surface, 3...Second member, 30...Second surface, 31...Operating member, 32...Axis, 33...Action portion, 4...Workpiece, 5...Flow path, 50...Opening, 6...Storage portion, 11B...Driving tool, 2B...Contact arm (first member), 20B...Cam surface (first surface), 12B...Contact member, 13B trigger, 14B main body, 3B cam follower (second member), 30B second surface, 11C drilling tool, 2C1 first gear (first member), 2C2 second gear (first member), 20C teeth (first surface), 12C rotating body, 13C motor, 14C shaft, 11D printer, 12D cutter unit, 2D moving plate (first member), 20D cam surface (first surface), 3D cam follower (second member), 30D second surface, 13D rotating body

Claims

1. A stapler unit that supplies staples and ejects staples into a paper stack; A stapler including a binding unit that cuts and bends the staple legs of the staples driven out by the driving unit, a first member having a first surface and coupled to a shaft of the motor to rotate; a second member having a second surface that is in contact with the first surface in part or in whole, the first member and the second member are configured for relative movement; the first member is configured as a flat cam, and the first surface is configured as a cam surface formed on an outer periphery of the first member, the second member is a cam follower that follows the cam surface in response to relative movement between the first member and the second member, and the second surface is formed by an outer peripheral surface of the second member; the first member has a plurality of lubricant flow paths each having an opening formed in the first surface, and a storage portion that communicates with the plurality of flow paths and stores the lubricant to be supplied to the plurality of flow paths, and a plurality of the openings are provided in different portions of the first surface corresponding to the plurality of flow paths; The flow path is formed by a concave groove that is provided on a surface of the first member that is different from the first surface and does not penetrate to the other surface. Stapler.

2. The opening is provided in a part of the first surface in a thickness direction of the first member that intersects with a direction in which the first member and the second member move relative to each other.

2. The stapler of claim 1.

3. The opening is provided upstream of a portion where the greatest load is applied in a range where the first surface and the second surface contact each other when the first member and the second member move relative to each other.

3. The stapler according to claim 1 or 2.

4. The storage section is provided on a surface different from the first surface. The stapler according to any one of claims 1 to 3.

5. The storage section is provided inside the first member. The stapler according to any one of claims 1 to 4.

6. The housing portion is provided in a portion where a load applied to the first member is low when the first member and the second member move relative to each other. The stapler according to any one of claims 1 to 5.

7. The volume of the storage section is configured to be equal to or greater than the volume of the flow path. The stapler according to any one of claims 1 to 6.

Images