Binding mechanism and stapler

Abstract

The present invention relates to the technical field of office supplies, and in particular to a stapling mechanism comprising an outer nail track, a nail track, a first elastic member, and a buffer roller. The nail track slidably engages with the outer nail track, and the nail track has a first state in which it is within the outer nail track and a second state in which it extends out of the outer nail track. The first elastic member is configured to provide a force to the nail track so as to extend out of the outer nail track. The buffer roller is rotatably disposed on the outer nail track, and a limiting groove is provided on the nail track. At least a portion of the buffer roller can extend into the limiting groove. When the buffer roller abuts against one end of the limiting groove, the buffer roller can reduce the force of the nail track when it pops out of the outer nail track, thereby reducing the speed at which the nail track pops out, effectively preventing staples from flying out of the nail track. The present invention also relates to a stapler. The application of the above-mentioned stapling mechanism can ensure the safety of the stapler when it is used.

Description

Technical Field

[0001] The present invention relates to the technical field of office supplies, in particular to a binding mechanism and a stapler. Background Art

[0002] A stapler is a common office tool, which is mainly used to bind papers into volumes for easy collection, storage and reference. A common ordinary stapler includes a base, a stapling mechanism and a stapling mechanism. The stapling mechanism and the stapling mechanism are hinged. Under the action of the stapling mechanism, the stapling mechanism staples the papers located on the base. This type of stapler has a simple and lightweight structure, but is generally only suitable for binding thinner documents. When binding relatively thick documents, the force arm of the stapling mechanism is small and the strength of the staples in the binding mechanism is weak. During the stapling process, it is very laborious and the staples have difficulty penetrating the paper. The staples are prone to crooked, skewed and stuck staples. For this reason, people have designed heavy-duty staplers.

[0003] Due to the complex stapling mechanism of heavy-duty staplers, the staple track in the binding mechanism typically uses a pop-up structure that can be ejected from the outer staple track by spring force. However, the spring force is large and can easily injure hands. To address this issue, two solutions have been proposed in the related art: one uses rubber parts to increase friction between the staple track and the outer staple track to achieve deceleration; the other uses springs to reduce speed. Both structures are prone to wear after long-term use, affecting the cushioning effect. Furthermore, the springs tend to leave deep marks on the bottom of the outer staple track, shortening the service life of the outer staple track. Summary of the Invention

[0004] One of the purposes of the present invention is to provide a stapling mechanism that can effectively cushion the nail channel when the nail channel pops out of the outer nail channel, has a high safety factor, fast deceleration and is not easy to be damaged.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] The stapling mechanism includes an outer nail channel, a nail channel, a first elastic member and a buffer roller. The nail channel is slidably engaged with the outer nail channel, and the nail channel has a first state in the outer nail channel and a second state extending out of the outer nail channel; the first elastic member is configured to provide a force to the nail channel extending out of the outer nail channel; the buffer roller is rotatably set on the outer nail channel, and the buffer roller is elastically pressed against the nail channel. A limiting groove is provided on the nail channel, and the buffer roller can at least partially extend into the limiting groove.

[0007] Optionally, the buffer roller is rotatably arranged on the outer side of the bottom surface of the outer nail track, and an avoidance groove is opened on the bottom surface of the outer nail track, and the buffer roller enters the inner part of the outer nail track through the avoidance groove.

[0008] Optionally, the nail channel is slidably connected to a nail pusher, one end of the first elastic member is connected to the first end of the outer nail channel, and the other end of the first elastic member is connected to the nail pusher.

[0009] Optionally, a long pin is further included, the first elastic member is a compression spring, the compression spring is sleeved on the long pin, one end of the long pin is fixedly connected to the outer nail track, and the other end of the long pin is slidably matched with the nail pusher.

[0010] Optionally, the nail pusher has a first folding piece that folds upward, and L-shaped limit baffles are provided on the two side walls of the outer nail channel extending along its length direction. The limit baffles are close to the second end of the outer nail channel. The two limit baffles form a limit channel above the outer nail channel. When the nail channel pops out, the first folding piece is configured to move in the limit channel.

[0011] Optionally, a locking member is further included, wherein the locking member is configured to automatically lock the nail track when the nail track is transformed from the second state to the first state.

[0012] Optionally, the locking member includes a mounting portion and a clamping block, the mounting portion is rotatably connected to the outer nail channel, the clamping block is arranged on the mounting portion, and a clamping slot is provided at one end of the nail channel close to the locking member, and the clamping block can be clamped into the clamping slot to enable the locking member to engage with the nail channel.

[0013] Optionally, it also includes an inner nail channel, which is placed in the nail channel and slides with the nail channel. A second elastic member is connected between the inner nail channel and the nail channel. The nail pusher slides with the inner nail channel. A nail outlet area is formed between the end of the inner nail channel away from the locking member and the nail channel. A nail outlet opening is provided on the bottom surface of the nail channel corresponding to the position of the nail outlet area. When the nail channel is locked by the locking member, the width of the nail outlet area is consistent with the thickness of a staple. When the nail channel is released by the locking member, the width of the nail outlet area is greater than the thickness of the staple.

[0014] Optionally, the inner nail channel and one of the nail channels are provided with a guide block, and the other of the inner nail channel and the nail channel is provided with a guide groove extending along the pop-out direction of the nail channel, and the guide block is slidably engaged with the guide groove. When the guide block abuts against one end of the guide groove close to the nail output area, the width of the nail output area is the thickness of one of the staples.

[0015] Another object of the present invention is to provide a stapler with high safety performance, comprising the above-mentioned stapling mechanism.

[0016] The beneficial effects of the present invention are as follows: the stapling mechanism of the present invention is provided with a buffer roller on the outer nail channel, and a limiting groove for part of the buffer roller to extend into on the nail channel. When the buffer roller abuts against one end of the limiting groove, the buffer roller can reduce the force of the staple channel when it pops out of the outer nail channel, thereby reducing the speed of the staple channel popping out, which can effectively prevent staples from flying out of the nail channel, thereby ensuring safety when using a stapler with the above-mentioned stapling mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the binding mechanism in an embodiment of the present invention when it is in a first state;

[0018] Figure 2 is a structural schematic diagram of the binding mechanism in the embodiment of the present invention when it is in the second state;

[0019] Figure 3 2 is a schematic structural diagram of a stapling mechanism during buffering by a stapling channel receiving buffer roller in an embodiment of the present invention;

[0020] Figure 4 yes Figure 3 Side view of

[0021] Figure 5 yes Figure 3 A top view of

[0022] Figure 6 yes Figure 3 sectional view of

[0023] Figure 7 yes Figure 1 Schematic diagram of the structure of hidden external nail channel;

[0024] Figure 8 yes Figure 7 Enlarged schematic diagram of point A in the middle.

[0025] In the figure: 1. outer nail channel; 11. avoidance groove; 12. limit baffle; 2. nail channel; 21. limit groove; 22. guide block; 23. clamping slot; 24. first wedge surface; 3. first elastic member; 4. buffer roller; 5. long pin; 6. nail pusher; 61. first folding piece; 62. second folding piece; 7. locking member; 71. mounting portion; 72. clamping block; 72a, second wedge surface; 73. force-applying portion; 8. inner nail channel; 81. guide groove; 9. second elastic member. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0027] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0030] The present embodiment provides a stapling mechanism for use in a heavy-duty pop-up stapler. When replenishing staples into the staple channel of the heavy-duty pop-up stapler, the staple channel needs to be popped out from the outer staple channel to facilitate the replenishment of staples. The stapling mechanism in this embodiment utilizes a buffer roller installed on the outer staple channel to convert part of the potential energy of the staple channel popping out into power for the roller rotation, effectively solving the problem of excessive ejection force when the staple channel pops out from the outer staple channel, causing staples to fly out of the staple channel.

[0031] refer to Figure 1-8As shown, the stapling mechanism proposed in this embodiment includes an outer nail channel 1, a nail channel 2, a first elastic member 3 and a buffer roller 4, wherein the nail channel 2 is slidably fitted with the outer nail channel 1, and the nail channel 2 has a first state in the outer nail channel 1 and a second state popping out along the length direction of the outer nail channel 1, and the first elastic member 3 is located between the nail channel 2 and the outer nail channel 1, and is configured to provide an outward pop-out force to the nail channel 2; a rotatable buffer roller 4 is provided on the bottom surface of the outer nail channel 1, and the buffer roller 4 is elastically pressed against the nail channel 2, and a limiting groove 21 is provided on the bottom surface of the nail channel 2, and the distance between the axis of the buffer roller 4 and the nail channel 2 is less than the radius of the buffer roller 4, that is, when the nail channel 2 is transformed from the first state to the second state, the buffer roller 4 can at least partially extend into the limiting groove 21.

[0032] The binding mechanism of this embodiment is provided with a buffer roller 4. During the popping out process of the nail track 2, the buffer roller 4 enters the limiting groove 21. When one end of the limiting groove 21 abuts against the buffer roller 4, it is stuck by the buffer roller 4. A part of the kinetic energy of the nail track 2 is converted into the kinetic energy of the buffer roller 4, which slows down the popping out speed of the nail track 2. Under the action of the first elastic member 3, the nail track 2 produces elastic deformation and continues to pop out. During the popping out process of the nail track 2, the friction between the buffer roller 4 and the nail track 2 is rolling friction. While playing a buffering role for the nail track 2, it can also effectively reduce the mutual wear between the nail track 2 and the buffer roller 4, thereby increasing the service life of the buffer roller 4. For specific reference Figure 6 As shown, the outer nail channel 1 and the nail channel 2 are both groove structures with a U-shaped longitudinal cross-section, wherein the outer nail channel 1 is closed at the first end along the length direction and open at the second end opposite to the first end. The longitudinal cross-section of the nail channel 2 is smaller than the longitudinal cross-section of the outer nail channel 1 to ensure that the nail channel 2 can smoothly enter and exit the outer nail channel 1 from the second end of the outer nail channel 1. The end of the nail channel 2 on the same side as the second end of the outer nail channel 1 is closed to prevent staples from falling. In order to reduce the volume occupied by the buffer roller 4, the buffer roller 4 is rotatably arranged on the outside of the bottom surface of the outer nail channel 1, and its axis is perpendicular to the length direction of the outer nail channel 1. An avoidance groove 11 is provided on the bottom surface of the outer nail channel 1, and the top surface of the buffer roller 4 enters the interior of the outer nail channel 1 from the outside of the outer nail channel 1 through the avoidance groove 11.

[0033] The nail track 2 is slidably connected to a nail pusher 6. One end of a first elastic member 3 is connected to the first end of the outer nail track 1, and the other end is connected to the nail pusher 6. Under the elastic force of the first elastic member 3, the nail track 2 is pushed out of the outer nail track 1 along with the nail pusher 6. In this embodiment, the first elastic member 3 is a telescopic spring. To ensure that the telescopic spring's telescopic direction is consistent with the length direction of the outer nail track 1, the binding mechanism also includes a long pin 5. The telescopic spring is sleeved on the long pin 5. One end of the long pin 5 is connected to the first end of the outer nail track 1, and the other end is inserted into a through hole provided in the nail pusher 6 to slide with the nail pusher 6.

[0034] Specifically, the staple pusher 6 is U-shaped with its opening downward, and includes a first folding piece 61 that folds upward and a second folding piece 62 that folds inward (downward) toward the staple channel 2. The second folding piece 62 has a through hole for the long pin 5 to pass through. The first folding piece 61 facilitates applying a pushing force to the staple pusher 6 to replenish the staples in the staple channel 2. At least two second folding pieces 62 are provided, spaced apart along the length of the staple channel 2 to further provide stability for the long pin 5.

[0035] Optionally, refer to Figure 5 As shown, horizontal L-shaped limiting baffles 12 are provided on both side walls extending along the length of the outer nail channel 1. The limiting baffles 12 are located near the second end of the outer nail channel 1. The two limiting baffles 12 form a limiting channel above the outer nail channel 1. When the nail channel 2 pops out, the first folding piece 61 is configured to move within the limiting channel to prevent the first elastic member 3 from exerting excessive force and completely separating the nail channel 2 from the outer nail channel 1. Generally speaking, to simplify processing, the limiting baffles 12 are integrally formed with the outer nail channel 1, formed by bending two opposing side walls of the outer nail channel 1 inwardly.

[0036] refer to Figure 7-8 As shown, the binding mechanism also includes a locking member 7, which can lock the nail track 2 when the nail track 2 is converted from the second state to the first state to prevent the nail track 2 from automatically popping out. In this embodiment, the locking member 7 can be engaged with the nail track 2. The locking member 7 includes a mounting portion 71, a clamping block 72, and a force-applying portion 73. The mounting portion 71 is rotatably connected to the outer nail track 1. The clamping block 72 is disposed on the mounting portion 71. The force-applying portion 73 is used to apply force to the mounting portion 71 so that the mounting portion 71 drives the clamping block 72 to rotate relative to the outer nail track 1. Correspondingly, a clamping groove 23 is provided at one end of the nail track 2 near the locking member 7. The clamping block 72 can be engaged in the clamping groove 23 to engage the locking member 7 with the nail track 2. Specifically, the clamping block 72 is integrally formed with the mounting portion 71. The opposite sides of the mounting portion 71 connected to the outer nail track 1 are both L-shaped. The clamping block 72 is disposed at one end of the mounting portion 71 extending to the top surface of the nail track 2, and the clamping groove 23 is disposed on the top surface of the nail track 2.

[0037] Furthermore, an inclined first wedge surface 24 is provided on the end surface of the nail channel 2 close to the first end of the outer nail channel 1, and a second wedge surface 72a is provided on the block 72 with the same angle as the first wedge surface 24. During the process of the nail channel 2 retracting into the outer nail channel 1, the first wedge surface 24 abuts against the second wedge surface 72a and applies an upward force thereto, so that the mounting portion 71 rotates away from the nail channel 2 to prevent the block 72 from interfering with the continued retraction of the nail channel 2. When the nail channel 2 retracts to the predetermined position, the block 72 is inserted into the slot 23 to fix the nail channel 2. The setting of the first wedge surface 24 and the second wedge surface 72a can make the block 72 automatically inserted into the slot 23 without manual intervention.

[0038] refer to Figure 3 and Figure 5 As shown, the binding mechanism also includes an inner nail channel 8, which is placed in the nail channel 2 and slides with the nail channel 2. The inner nail channel 8 is a groove-shaped structure with a U-shaped longitudinal cross-section and open at both ends along the length direction. The opposite sides of the nail pusher 6 are clamped in the gap formed by the nail channel 2 and the inner nail channel 8. The nail pusher 6 also slides with the inner nail channel 8. A nail outlet area B is formed between the end of the inner nail channel 8 away from the locking member 7 and the closed end of the nail channel 2. A nail outlet opening is provided on the bottom surface of the nail channel 2 corresponding to the position of the nail outlet area B. The nail pressing mechanism can press the staples out of the nail channel 2 from the nail outlet area B. The width of the nail outlet area B changes with the relative position of the inner nail channel 8 and the nail channel 2. When the nail channel 2 is in a first state, the width of the nail outlet area B is consistent with the thickness of a staple to ensure that only one staple is ejected each time. When the nail channel 2 is in a second state, the width of the nail outlet area B is greater than the thickness of a staple, so that the stuck staples can be automatically ejected when the staples are stuck without the need for tools.

[0039] Specifically, refer to Figure 6 As shown, a second elastic member 9 is connected between the inner nail channel 8 and the nail channel 2. A guide block 22 is provided on one of the bottom surfaces of the inner nail channel 8 and the nail channel 2. A guide groove 81 is provided on the other bottom surface of the inner nail channel 8 and the nail channel 2, extending in the direction of ejection of the nail channel 2. The length of the guide groove 81 is greater than the length of the guide block 22. The guide block 22 slides in engagement with the guide groove 81. When the guide block 22 abuts against the end of the guide groove 81 near the staple exit area, the width of the staple exit area is the thickness of a staple. In this embodiment, the guide blocks 22 are L-shaped and are provided on the bottom surface of the nail channel 2. The guide groove 81 extends through the bottom surface of the inner nail channel 8. The guide blocks 22 can be inserted into the nail channel 2 through the guide groove 81. The guide blocks 22 not only limit the relative movement of the inner nail channel 8 and the nail channel 2 in the length direction, but also limit the relative movement of the inner nail channel 8 and the nail channel 2 in the height direction, thereby preventing the inner nail channel 8 from separating from the nail channel 2 and maintaining the stability of the structure.

[0040] The second elastic member 9 can be a tension spring located in the inner nail track 8 , with one end of the tension spring fixedly connected to the inner nail track 8 and the other end fixedly connected to one of the guide blocks 22 provided on the nail track 2 .

[0041] When the nail channel 2 is in the first state, the nail channel 2 is locked by the locking member 7 and is stationary relative to the outer nail channel 1. The first elastic member 3 is in a compressed state, pushing the inner nail channel 8 so that the width of the nail outlet area is consistent with the thickness of a staple. At this time, the second elastic member 9 is in a stretched state; when the nail channel 2 is in the second state, the first elastic member 3 is in a natural state, and the second elastic member 9 pulls the inner nail channel 8 so that the width of the nail outlet area is greater than the thickness of a staple. The stuck staple can be ejected automatically when the staple is stuck, without the need to use hands or tools to eject it.

[0042] This embodiment also includes a stapler, including the above-mentioned stapling mechanism, a staple pressing mechanism and a base. The base is hinged to the staple pressing mechanism, and the stapling mechanism is located inside the base.

[0043] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. The binding mechanism is characterized in that: include: External nail channel (1); A nail channel (2), wherein the nail channel (2) is slidably engaged with the outer nail channel (1), the nail channel (2) having a first state of being in the outer nail channel (1) and a second state of being extended out of the outer nail channel (1), and the nail channel (2) is slidably connected to a nail pusher (6); a first elastic member (3), the first elastic member (3) being configured to provide a force to the nail channel (2) to extend out of the outer nail channel (1), one end of the first elastic member (3) being connected to the first end of the outer nail channel (1), and the other end of the first elastic member (3) being connected to the nail pusher (6); A buffer roller (4), the buffer roller (4) being rotatably disposed on the outer nail track (1), the buffer roller (4) being elastically pressed against the nail track (2), a limiting groove (21) being provided on the nail track (2), and the buffer roller (4) being at least partially capable of extending into the limiting groove (21); a locking member (7), the locking member (7) being configured to automatically lock the nail track (2) when the nail track (2) is transformed from the second state to the first state; An inner nail channel (8), the inner nail channel (8) is placed in the nail channel (2) and is slidably matched with the nail channel (2), a second elastic member (9) is connected between the inner nail channel (8) and the nail channel (2), the nail pusher (6) is slidably matched with the inner nail channel (8), a nail outlet area is formed between the end of the inner nail channel (8) away from the locking member (7) and the nail channel (2), a nail outlet opening is provided on the bottom surface of the nail channel (2) corresponding to the position of the nail outlet area, when the nail channel (2) is locked by the locking member, the width of the nail outlet area is consistent with the thickness of a staple, and when the nail channel (2) is released by the locking member, the width of the nail outlet area is greater than the thickness of a staple; One of the inner nail channel (8) and the nail channel (2) is provided with a guide block (22), and the other of the inner nail channel (8) and the nail channel (2) is provided with a guide groove (81) extending along the ejection direction of the nail channel (2). The guide block (22) is slidably engaged with the guide groove (81). When the guide block (22) abuts against one end of the guide groove (81) close to the nail exit area, the width of the nail exit area is the thickness of one staple.

2. The binding mechanism according to claim 1, wherein: The buffer roller (4) is rotatably arranged on the outside of the bottom surface of the outer nail track (1); an avoidance groove (11) is provided on the bottom surface of the outer nail track (1); and the buffer roller (4) enters the interior of the outer nail track (1) through the avoidance groove (11).

3. The binding mechanism according to claim 1, characterized in that: It also includes a long pin (5), the first elastic member (3) is a compression spring, the compression spring is sleeved on the long pin (5), one end of the long pin (5) is fixedly connected to the outer nail track (1), and the other end of the long pin (5) is slidably matched with the nail pusher (6).

4. The binding mechanism according to claim 1, wherein: The nail pusher (6) has a first folding piece (61) that folds upward, and L-shaped limiting baffles (12) are provided on both side walls of the outer nail channel (1) extending along its length direction. The limiting baffles (12) are close to the second end of the outer nail channel (1). The two limiting baffles (12) form a limiting channel above the outer nail channel (1). When the nail channel (2) pops out, the first folding piece (61) is configured to move in the limiting channel.

5. The binding mechanism according to claim 1, wherein: The locking member (7) comprises a mounting portion (71) and a clamping block (72), wherein the mounting portion (71) is rotatably connected to the outer nail channel (1), and the clamping block (72) is arranged on the mounting portion (71). A clamping groove (23) is provided at one end of the nail channel (2) close to the locking member (7), and the clamping block (72) can be clamped into the clamping groove (23) to enable the locking member (7) to be clamped and matched with the nail channel (2).

6. A stapler, characterized in that The invention comprises the binding mechanism described in any one of claims 1 to 5.

Images