stapler

Abstract

Stapler, with a main body (10) having a striking head (11) and a handle (12) at two opposite ends, the striking head (11) forming a staple outlet (111); and a striking mechanism (20) which is housed in the striking head (11) and contains a staple magazine (21) and a staple striking element (22), wherein the tacker (1) consists of a metal part and a non-metal part, wherein the main body (10) is a plastic housing, wherein the main body (10) has a total length (L1), wherein the distance between the center of gravity W of the impact tacker (1) and the staple outlet (111) in the length direction of the main body (10) is defined as the center of gravity distance (L2), and wherein the first ratio value of the center of gravity distance (L2) to the total length (L1) is 0.237 to 0.292.

Description

Technical field

[0001] The invention relates to a stapler, in particular a hammer stapler. Technical field

[0002] Generally, a tacker consists of a left and right housing and a striking mechanism housed within it. The two housing parts are usually made of metallic or non-metallic material. The metal housing is formed by processes such as folding, stamping, and other methods. Due to the difficulty of sheet metal processing, the shape of the housing is quite limited. The striking mechanism requires additional fasteners to be attached. In addition, the metal housing is heavy, which is inconvenient for use. The housing made of non-metallic materials (such as plastic or fiber-reinforced plastics) can be formed using molding tools, which facilitates manufacturing and imposes fewer restrictions on the housing shape. However, the lighter, non-metallic housing has a significant impact on the center of gravity and weight structure of the tacker.If the center of gravity is too far forward or too far back, the grip is unbalanced, uncomfortable and laborious, and the striking effect and efficiency are not good.

[0003] Therefore, it is necessary to provide a tacker to solve the above problems. Object of the invention

[0004] The object of the invention is to provide a tacker that can provide a comfortable, labor-saving and balanced grip and achieve a good and efficient striking effect.

[0005] This object is achieved by the hammer tacker of the invention, comprising: a main body having an impact head and a handle at two opposite ends, the impact head forming a staple outlet; and an impact mechanism housed in the impact head and including a staple magazine and a staple impact element, the impact tacker consisting of a metal part and a non-metal part, the main body being a plastic housing, the main body having an overall length, the distance between the center of gravity of the hammer tacker and the staple outlet in the length direction of the main body being defined as the center of gravity distance, and the first ratio value of the center of gravity distance to the overall length being 0.237 to 0.292. Short description of the drawings Fig. 1 a perspective view of the embodiment of the invention, Fig. 2 an exploded view of the embodiment of the invention, Fig. 3 a further exploded view of the embodiment of the invention, Fig. 4 a side view of the embodiment of the invention, Fig. 5 a sectional view of the embodiment of the invention. Ways to implement the invention

[0006] The following embodiments are intended only to illustrate possible implementations of this invention; they are not intended to limit the scope of the invention. The term "one" or "at least one" before the nouns mentioned in the article does not limit the number. A "plurality" is also possible as needed. Changes to this number are also within the scope of the invention.

[0007] Fig.1 to 5 show an embodiment of the invention. The impact tacker 1 of the invention comprises a main body 10 and an impact mechanism 20.

[0008] The main body 10 has an impact head 11 and a handle 12 at two opposite ends. The impact head 11 forms a staple outlet 111. The impact mechanism 20 is housed in the impact head 11 and includes a staple magazine 21 and a staple impact element 22. The staple impact element 22 can move toward the staple outlet 111 to drive out the staples 100 in the staple magazine 21. The impact stapler 1 consists of a metal part and a non-metal part. The main body 10 is a plastic housing. The main body 10 has a total length L1. The distance between the center of gravity W of the impact stapler 1 and the staple outlet 111 in the length direction of the main body 10 is defined as the center of gravity distance L2. The first ratio of the center of gravity distance L2 to the total length L1 is 0.237 to 0.292. This ensures a comfortable, labor-saving and balanced grip and achieves a good and efficient striking effect.

[0009] The first ratio is preferably 0.244 to 0.278. The center of gravity distance L2 is 72.0 mm to 82.0 mm. The handle 12 has a maximum length L3 and a minimum length L4. A second ratio of the maximum length L3 to the total length L1 is 0.418 to 0.461. A third ratio of the minimum length L4 to the total length L1 is 0.305 to 0.348. For example, the total length L1 is 295.0 mm, the center of gravity distance L2 is 77.0 mm, the maximum length L3 of the handle 12 is 130.0 mm, and the minimum length L4 of the handle 12 is 97.0 mm. The above dimensions may vary depending on usage requirements and / or different components.

[0010] In this embodiment, the main body 10 further comprises a first housing part 13 and a second housing part 14. The first housing part 13 is provided with at least one hook 131, and the second housing part 14 is provided with at least one hook groove 141. The at least one hook 131 is hooked into the at least one hook groove 141, so that assembly and disassembly are easy and quick. Preferably, the first housing part 13 and the second housing part 14 can be fastened by at least one fastening element 15 (such as a screw) to provide a stable and reliable connection.

[0011] Preferably, the striking head 11 further includes a plurality of guide ribs 112. The striking mechanism 20 further includes a pivot block 23 pivotally connected to the striking head 11. The pivot block 23 can pivot between the plurality of guide ribs 112. As the pivot block 23 pivots, the staple striking element 22 is moved along with it. The pivoting of the pivot block 23 can be guided to provide a stable, smooth, and effective staple ejection effect. The striking head 11 further includes a plurality of forwardly extending support plates 113. The striking mechanism 20 further includes a guide rail 24 and a trigger member 25. The guide rail 24 is supported between the plurality of support plates 113. The trigger member 25 is movably received in the guide rail 24. The trigger member 25 is used to trigger the staple striking element 22.The plurality of support plates 113 can hold the guide rail 24 stable, so that the triggering of the trigger member 25 is more precise.

[0012] Specifically, the striking mechanism 20 further includes a boss 26. The boss 26 and the guide rail 24 are integrally formed. The boss 26 is disposed on the striking head 11 and overlaps the staple magazine 21. The main body 10 further includes at least one weight groove 16 for receiving a weight. The striking head 11 is further provided with at least one removable metal cover 114 covering the at least one weight groove 16. In the present embodiment, the at least one metal cover 114 includes a first metal cover 115 and a second metal cover 116 that partially overlap. The first metal cover 115 covers the front and the left and right sides of the striking head 11. The second metal cover 116 covers the top and the left and right sides of the striking head 11, which facilitates assembly and allows the weight to be adjusted as needed.

[0013] The metal part does not include the 100 staples. A fourth ratio of the weight of the metal part to the weight of the non-metal part is 2.850 to 3.150. A fifth ratio of the total weight of the metal part and the 100 staples to the weight of the non-metal part is 3.030 to 3.138. The metal part includes, for example, the staple magazine 21, the staple striking element 22, the at least one fastening element 15, the pivot block 23, the guide rail 24, the extension 26, the at least one metal cover 114, a hinge axis, an elastic element, etc. The staples 100 are, for example, a row of staples with 168 staples and a weight of 8.21 grams, a row of staples with 168 staples and a weight of 10.045 grams, a row of staples with 168 staples and a weight of 11.515 grams or a row of staples with 168 staples and a weight of 13.36 grams. The staple magazine 21 can be used to hold one or more rows of staples.

[0014] The invention thus relates to an impact stapler comprising: a main body (10) having an impact head (11) and a handle (12) at two opposite ends, wherein the impact head (11) forms a staple outlet (111); and an impact mechanism (20) accommodated in the impact head (11) and containing a staple magazine (21) and a staple impact element (22), wherein the impact stapler (1) consists of a metal part and a non-metal part, wherein the main body (10) is a plastic housing, wherein the main body (10) has an overall length (L1), wherein the distance between the center of gravity W of the impact stapler (1) and the staple outlet (111) in the length direction of the main body (10) is defined as the center of gravity distance (L2), and wherein the first ratio of the center of gravity distance (L2) to the overall length (L1) is 0.237 to 0.292. List of reference symbols 1 stapler 10 main bodies 11 Impact head 111 Staple outlet 112 Guide rib 113 Support plate 114 Metal cover 115 first metal cover 116 second metal cover 12 handle 13 first housing part 131 hooks 14 second housing part 141 Hook groove 15 Fastening element 16 Weight groove 20 striking mechanism 21 staple magazine 22 Staple striking element 23 Swivel block 24 guide rail 25 trigger element 26 Approach 100 brackets L1 total length L2 center of gravity distance L3 maximum length L4 minimum length W Focus

Claims

[1] Stapler, with a main body (10) having a striking head (11) and a handle (12) at two opposite ends, the striking head (11) forming a staple outlet (111); and a striking mechanism (20) which is housed in the striking head (11) and contains a staple magazine (21) and a staple striking element (22), wherein the tacker (1) consists of a metal part and a non-metal part, wherein the main body (10) is a plastic housing, wherein the main body (10) has a total length (L1), wherein the distance between the center of gravity W of the impact tacker (1) and the staple outlet (111) in the length direction of the main body (10) is defined as the center of gravity distance (L2), and wherein the first ratio value of the center of gravity distance (L2) to the total length (L1) is 0.237 to 0.

292. [2] Stapler according to claim 1, characterized by that the first ratio value is 0.244 to 0.

278. [3] Stapler according to claim 1, characterized by that the handle (12) has a maximum length (L3) and a minimum length (L4), wherein a second ratio of the maximum length (L3) to the total length (L1) is 0.418 to 0.461 and a third ratio of the minimum length (L4) to the total length (L1) is 0.305 to 0.

348. [4] Stapler according to claim 1, characterized by that the metal part does not contain the clamps (100), wherein a fourth ratio of the weight of the metal part to the weight of the non-metal part is 2.850 to 3.

150. [5] Stapler according to claim 1, characterized by that a fifth ratio of the total weight of the metal part and the clamps (100) to the weight of the non-metal part is 3.030 to 3.

138. [6] Stapler according to claim 1, characterized bythat the main body (10) further comprises a first housing part (13) and a second housing part (14), wherein the first housing part (13) is provided with at least one hook (131) and the second housing part (14) is provided with at least one hook groove (141), and wherein the at least one hook (131) is hooked into the at least one hook groove (141). [7] Stapler according to claim 1, characterized by in that the striking head (11) further comprises a plurality of guide ribs (112), wherein the striking mechanism (20) further comprises a pivot block (23) which is pivotally connected to the striking head (11), wherein the pivot block (23) can pivot between the plurality of guide ribs (112), and wherein, when the pivot block (23) pivots, the staple striking element (22) is moved along with it. [8] Stapler according to claim 1, characterized byin that the striking head (11) further comprises a plurality of forwardly extending support plates (113), wherein the striking mechanism (20) further includes a guide rail (24) and a trigger member (25), wherein the guide rail (24) is supported between the plurality of support plates (113), wherein the trigger member (25) is movably received in the guide rail (24), and wherein the trigger member (25) is used to trigger the staple striking element (22). [9] Stapler according to claim 8, characterized by that the impact mechanism (20) also includes a projection (26), wherein the projection (26) and the guide rail (24) are formed in one piece, and wherein the projection (26) is arranged on the impact head (11) and engages over the staple magazine (21). [10] Stapler according to one of claims 1 to 9, characterized bythat the main body (10) further comprises at least one weight groove (16) for receiving a weight, wherein the striking head (11) is further provided with at least one removable metal cover (114) covering the at least one weight groove (16).

Images