CN118342454A - Bookbinding machine with improved linkage structure - Google Patents

Abstract

The invention discloses a binding machine with an improved linkage structure, which comprises a machine body with a shaft movement limiting part; a first shaft and a second shaft are respectively connected with the machine body; a nail striking plate with a hooking hole; a driving spring for elastically driving the nail striking plate; an operating arm penetrated by the first shaft; a third shaft for pivoting the operating arm and a pivoting piece; the hooking control part is provided with a second hole penetrated by the second shaft, a driving swing long hole penetrated by the third shaft and a hooking control hole for hooking the nail striking plate; the fourth shaft is pivoted with the pivot connecting piece and the hook control piece, and the fourth shaft is moved to abut against the shaft movement limiting part of the machine body when the hook control piece swings; the elastic piece enables the hooking control part of the hooking control part to be downwards displaced by the elasticity of the elastic piece; the first shaft center and the third shaft center form a first distance, the third shaft center and the fourth shaft center form a second distance, and the first distance is smaller than or equal to the second distance. Thus, a specific force application mode can be provided and a better labor saving effect can be achieved.

Description

Bookbinding machine with improved linkage structure

Technical Field

The invention relates to the technical field of binding, in particular to a binding machine with an improved linkage structure.

Background

The binding machine disclosed in the chinese patent with CN104144771B and the US patent with US9643308B1 has the first, second, third and fourth coupling shafts respectively coupled to be stressed, and the distance between the first and third coupling shafts is designed to be 1.2 to 1.6 times greater than the distance between the third and fourth coupling shafts, so as to provide a specific force application mode for the user, but the effort saving effect of the mode is limited and needs to be improved.

Disclosure of Invention

In view of the above-mentioned drawbacks, it is a primary object of the present invention to provide a binding machine with an improved linkage structure, which can provide a user-specific force application mode and has better labor-saving effect.

In order to achieve the above-mentioned objective, the present invention provides a binding machine with improved linkage structure, comprising a machine body having a first shaft portion, a second shaft portion, and a shaft movement limiting portion; a first shaft connected to the first shaft part of the body; a second shaft connected to the second shaft part of the body; the nail striking plate can be vertically arranged in the machine body in a displacement manner and is provided with an elastic supporting hole and a hooking hole; the driving spring is arranged in the machine body, and one end of the driving spring is inserted into the spring supporting hole of the nail striking plate; an operating arm having a first hole and a first lower pivot hole; the first hole is penetrated by the first shaft; the third shaft is connected with the first lower pivot hole of the operation arm; a pivot piece having a second lower pivot hole and a first upper pivot hole; the second lower pivot hole is pivoted by the third shaft; the hooking control part is provided with a second hole penetrated by the second shaft, a driving swing long hole penetrated by the third shaft, a second upper pivot hole and a hooking control part, and the hooking control part hooks the hooking control hole of the nail striking plate; a fourth shaft pivoted with the first upper pivot hole of the pivot connection piece and the second upper pivot hole of the hook control piece, and the fourth shaft moves against the shaft movement limiting part of the machine body when the hook control piece swings; the elastic piece is provided with a first connecting end connected with the machine body, and a second connecting end connected with the hook control piece, so that the hook control part of the hook control piece is downwards displaced by the elasticity of the elastic piece; the first distance is smaller than or equal to the second distance.

Through the technical means, particularly the special design that the first distance is smaller than or equal to the second distance, and the fourth shaft can be glidingly abutted against the shaft limiting part when moving, when the operating arm is pressed down to drive the hook control to swing by means of the third shaft, the hook control and/or the pivot connection piece positioned in the second distance range form another force applying arm to assist in driving the hook control, and as the second distance is designed to be longer than the first distance, the longer force applying arm is provided, the hook control can be driven to swing more easily to drive the nail striking plate to move upwards, so that a better labor saving effect is achieved.

Preferably, the first distance is smaller than the second distance, so as to achieve better labor saving effect. More preferably, the first distance is 0.8 to 0.9 times the second distance for best effort saving.

Preferably, the shaft displacement limiter is located above the first shaft connecting part and the second shaft connecting part, so that space utilization is facilitated, and the shaft displacement limiter is abutted with the fourth shaft.

Preferably, the shaft limiting part is provided with an arc-shaped section, and the fourth shaft is abutted against the arc-shaped section of the shaft limiting part when the hook control swings. Thus, the fourth shaft can smoothly abut against the shaft displacement limiter.

Preferably, the shaft limiting part further comprises a straight line section integrally connected with the arc section; the contact degree of the fourth shaft against the shaft limiting part when the hook control swings gradually increases from the arc-shaped section to the linear section. Therefore, the pushing and supporting force of the hook control from small to large can be provided, so that a better labor-saving effect is achieved.

Preferably, an angle is formed between an extension line passing through the axis of the first shaft and the axis of the third shaft and another extension line passing through the axis of the third shaft and the axis of the fourth shaft, and the angle is between 30 degrees and 57 degrees. Thus, better labor-saving effect can be achieved.

Preferably, the elastic member may be a torsion spring, and the torsion spring has a loop portion, and the first and second connection ends extend from the loop portion; the ring-shaped part is sleeved on the second shaft connecting part of the machine body; the first connecting end is arranged on the first connecting shaft part, and the second connecting end is arranged on the hooking control part. Therefore, the space can be effectively utilized to assemble the elastic piece, and the stable resilience of the hook control piece is endowed.

Drawings

The following embodiments are further described with reference to the accompanying drawings, in which:

Fig. 1 is a perspective view of a binding machine according to a preferred embodiment of the present invention.

Fig. 2 is an exploded perspective view of the binding machine according to the preferred embodiment of the present invention.

Fig. 3 is an exploded perspective view of a driving assembly of a stapler according to a preferred embodiment of the present invention.

FIG. 4 is a front view of a binder with a housing removed according to a preferred embodiment of the present invention.

Fig. 5 is a schematic view of the state of fig. 4 after an operation.

Reference numerals illustrate:

10 fuselage body

10A casing body

11 First shaft connecting part

12 Second shaft portion

13 Shaft movement limiting part

131 Arc-shaped section

132 Straight line section

14 Nail striking plate moving part

15 Nail cartridge mounting portion

16 Plate spring fixing part

18 Clasp ring

20 Nail striking plate

21 Spring hole

22, Hooking control hole

30 Drive the spring

31 Elastic force adjusting button

40 Operating arm

41 First arm

42 Second arm

43 Arm plate

44 First hole

45 First lower pivot hole

50 Pivot connection piece

51 Second lower pivot hole

52 First upper pivot hole

60 Hook control

61 Second hole

62 Driving pendulum long hole

63 Second upper pivot hole

64 Hook control part

70 Elastic member

71 Collar assembly

72 First terminal

73, Second connecting end D1, first distance D2, second distance N and nail box

P1 is a first axis P2, a second axis P3, a third axis P4 and a fourth axis

Theta is the included angle

Detailed Description

The detailed structure, features, assembly or use of the binding machine with improved linkage structure according to the present invention will be described in the following detailed description of the embodiments. However, those of ordinary skill in the art will appreciate that the detailed description and the specific embodiments that are illustrated in the drawings and are intended to be exemplary of the invention only and are not intended to limit the scope of the invention as claimed.

It should be noted that the technical solution provided by the present invention is not limited to the specific structure, use and application described in the embodiments. The terms used in the description are all exemplary descriptive terms, as understood by those of ordinary skill in the art, and directional terms, such as "front", "upper", "lower", "rear", "left", "right", "top", "bottom", "inner" and "outer", are also exemplary descriptive terms based on normal use and are not intended to limit the scope of the invention.

Referring to fig. 1 to 4, the binding machine with improved linkage structure according to a preferred embodiment of the present invention mainly comprises a machine body 10, a first shaft P1, a second shaft P2, a striking plate 20, a striking spring 30, an operating arm 40, a third shaft P3, two pivoting pieces 50, a hook control 60, a fourth shaft P4, and an elastic member 70. The binding machine can be provided with a nail box N, and the nail box N is internally provided with a nail needle.

The body 10 is formed by combining two substantially symmetrical shells 10A. The two housings 10A are provided with a first shaft portion 11, a second shaft portion 12, a shaft movement restricting portion 13, a striking plate moving portion 14, a magazine loading portion 15, and a plate spring fixing portion 16, respectively, in correspondence with each other. The second shaft portion 12 is located at a front lower position of the first shaft portion 11. The shaft-limiting portion 13 is located above the first shaft-connecting portion 11 and the second shaft-connecting portion 12, in this embodiment, the shaft-limiting portion 13 is formed by a plate having an arc-shaped section 131 with a specific curvature, for example, the arc-shaped section 131 of the shaft-limiting portion 13 is formed equidistantly around the center of the second shaft-connecting portion 12, and a straight section 132 integrally connected with the arc-shaped section 131. The nail striking plate moving part 14 is vertically arranged in front of the nail box, the nail box loading part 15 is horizontally arranged below for loading the nail box N, and the plate spring fixing part 16 is arranged at the middle position.

The first shaft P1 is connected to the first shaft portion 11 of the body 10. More specifically, the first shaft P1 has two ends respectively connected to the first shaft portions 11 fixed to the two housings 10A.

The second shaft P2 is connected to the second shaft portion 12 of the body 10. More specifically, the second shaft portions 12 fixed to the two housings 10A are respectively connected to the two ends of the second shaft P2.

The striking plate 20 is provided at the striking plate moving portion 14 in front of the body 10 so as to be vertically movable with respect to the body 10 for striking the nails. The striking plate 20 has a strike hole 21 and a hooking hole 22. In this embodiment, the spring hole 21 is located below the hooking hole 22.

The drive spring 30 may be formed of a single reed or, as in the present embodiment, a stack of multiple reeds. The body of the driving spring 30 is provided at the leaf spring fixing portion 16 of the body 10 and is pressed by an elastic force adjusting knob 31 slidably provided in the body 10 back and forth to adjust the tension of the driving spring 30. The front end of the driving spring 30 is inserted into the spring hole 21 of the striking plate 20. When the striking plate 20 moves upward, the striking plate 20 drives the driving spring 30 to elastically deform, and applies a downward elastic force to the striking plate 20.

The operation arm 40 has a first arm 41 and a second arm 42, the first arm 41 is pivoted on the first axis P1, and the second arm 42 is sleeved on the first arm 41 and extends to the outside of the machine body 10. The first arm 41 has two arm plates 43 formed to extend downward from the left and right sides, two first holes 44, and two first lower pivot holes 45. The two first holes 44 are respectively positioned on the arm plates 43, and the two first lower pivot holes 45 are respectively positioned on the arm plates 43 and positioned below the front parts of the two first holes 44; the two first holes 44 are penetrated by the first shaft P1, and the second arm 42 is pressed by a hand to drive the first arm 41 to pivot around the first shaft P1.

The two ends of the third shaft P3 are inserted into the two first lower pivot holes 45 of the operating arm 40, and the shaft body of the third shaft P3 passes through the two pivot pieces 50 and the hook control 60 (described in detail below).

The two pivot connection pieces 50 are respectively provided with a second lower pivot hole 51 and a first upper pivot hole 52; the second lower pivot holes 51 are pivoted to each other by the third axis P3 passing therethrough; wherein the two pivot tabs 50 are located between the two armplates 43.

The hooking member 60 has a second hole 61, a driving long hole 62, a second upper pivot hole 63, and a hooking portion 64. The second hole 61 is penetrated by the second axis P2, so that the hook member 60 can swing about the second axis P2. The driving long hole 62 is penetrated by the third shaft P3, so that the first arm 41 can drive the hook control 60 through the third shaft P3. The hooking portion 64 hooks the hooking hole 22 of the striking plate 20. The swing driving long holes 62 of the hook control 60 are formed equidistantly by taking the center of the second upper pivot hole 63 as the center of a circle. Next, the hook control 60 is positioned between the two pivoting tabs 50.

The fourth axis P4 is pivotally connected to the first upper pivot holes 52 of the two pivot connection pieces 50 and the second upper pivot holes 63 of the hook control 60. Next, the left and right ends of the fourth shaft P4 protrude from the two pivot pieces 50, respectively, and slide against the shaft movement limiting portions 13 of the body 10, respectively.

In the present embodiment, the first axis P1 and the third axis P3 form a first distance D1, and the third axis P3 and the fourth axis P4 form a second distance D2, and the first distance D1 is substantially smaller than or equal to the second distance D2. Preferably, the first distance D1 is 0.8 to 0.9 times the second distance D2. Next, as shown in fig. 4, an angle θ is formed between an extending line passing through the axes of the first axis P1 and the third axis P3 and another extending line passing through the axes of the third axis P3 and the fourth axis P4, and in this embodiment, the angle θ is between 30 degrees and 57 degrees. In detail, the angle θ will vary between 30 degrees and 57 degrees when the operating arm 40 is displaced from the state of fig. 4, in which it has not been depressed, to the bottom dead center position shown in fig. 5.

The elastic member 70 is a torsion spring in this embodiment. The elastic member 70 has a loop portion 71, and a first end 72 and a second end 73 integrally extending outwardly from the loop portion 71. The ring-shaped part 71 is sleeved on the second shaft part 12 of the machine body 10, the first end 72 is connected with the first shaft part 11 of the machine body 10, the second end 73 is connected with the hooking part 64 of the hooking control part 60, and the second end is pressed against the top surface of the hooking part 64. Thereby, the hooking portion 64 of the hooking control 60 is displaced downward by the elastic force of the elastic member 70.

The operation of the binder of this embodiment is described below: as shown in fig. 4, it shows a non-pressed actuation state; when in use, the second arm 42 of the operation arm 40 swings downwards about the first axis P1 by pressing the operation arm 40, and at this time, the operation arm 40 drives the third axis P3 to move upwards, the third axis P3 pushes the inner edge of the driving swing long hole 62 to swing upwards about the second axis P2, and when the hook control 60 swings upwards, the hook control 60 drives the fourth axis P4 to move along the inner edge of the axis limiting part 13. In the actuation process, the hooking portion 64 of the hooking control 60 drives the striking plate 20 to move upwards, the striking plate 20 moves upwards to elastically deform the driving spring 30, and when the hooking control 60 swings to the point that the hooking portion 64 is separated from the hooking hole 22 of the striking plate 20, the striking plate 20 is immediately forced to press down by the elastically deformed driving spring 30 to rapidly move downwards, as shown in fig. 5, so that the striking plate 20 nails the striking pin to the object to be nailed.

Then, when the hand is released and the operation arm 40 is not pressed any more, the hook control 60 is biased downward by the elastic force of the elastic member 70, and drives the second arm 42 of the operation arm 40 to bias upward in the opposite direction, so that the operation arm 40 can return to the original non-pressed state, as shown in fig. 4, and the nailing can be operated again.

In the above-mentioned nailing process, regarding the operation arm 40, the operation arm 40 uses the first axis P1 as a pivot point, a portion between the outermost end of the operation arm 40 and the first axis P1 is used as a force applying arm, and a portion of the operation arm 40 located between the first axis P1 and the third axis P3 is used as a force resisting arm, and the length of the force resisting arm is the first distance D1 between the axes of the first axis P1 and the third axis P3; in addition, as for the hook control 60, since the hook control 60 swings up to drive the fourth shaft P4 to move along the inner edge of the shaft movement limiting portion 13, a pushing force of the hook control 60 is provided, at this time, a portion of the hook control 60 located between the third shaft P3 and the fourth shaft P4 and/or a portion of the pivot connection piece 50 can be regarded as another force applying arm, the length of the another force applying arm is the second distance D2 between the axis of the third shaft P3 and the axis of the fourth shaft P4, and a portion of the hook control 60 located between the third shaft P3 (which can be regarded as another pivot point) and the tip of the outermost side of the hook control 64 can be regarded as another force arm, in other words, the first distance D1 is substantially smaller than or equal to the second distance D2, in other words, the force applying arm 40 is pressed down by a user to drive the third shaft P3, so that the another force arm with a relatively longer length is designed to drive the hook control 60 to swing, and the hook control 60 can be driven more easily than the conventional force applying pin, thereby achieving a better driving effect of swinging effect of the hook control 60. In fact, when the first distance D1 is designed to be 0.8 to 0.9 times the second distance D2, an optimal balance can be achieved in terms of space arrangement of the components and in providing a better effort saving effect. Secondly, by means of the design that the included angle θ is between 30 degrees and 57 degrees, the initial opening angle of the operating arm 40 can be configured within an ergonomic range conforming to the opening of a common palm, and the stroke of the striking plate 20 can be effectively controlled, which is also helpful for achieving better labor-saving effect.

In addition, during the nailing process, the fourth shaft P4 is slidably abutted against the inner edge of the shaft limiting portion 13 with a specific curved surface design, so that the portion of the hooking member 60 and/or the portion of the pivot piece 50 between the third shaft P3 and the fourth shaft P4 can be used as another force application arm, and the fourth shaft P4 can be limited to move on a set track, so that the moving position and left-right balance of the hooking member 60 can be ensured, and the hooking and releasing of the hooking member 60 to the nailing plate 20 can be more stable and reliable.

It should be noted that, in the present embodiment, the shaft displacement limiting portion 13 is designed to have the arc-shaped portion 131 and the straight-line portion 132 integrally connected, in fact, in the process that the operating arm 40 is pressed down, the degree of the fourth shaft P4 abutting against the inner edge of the shaft displacement limiting portion 13 may be designed to be in a form that the contact degree of the fourth shaft P4 from the arc-shaped portion 131 to the straight-line portion 132 increases (from light to heavy), that is, the fourth shaft P4 lightly abutting against (even not contacting) the arc-shaped portion 131 at the initial stage of displacement, and when the fourth shaft P4 is displaced toward the straight-line portion 132, the fourth shaft P4 abuts against the inner edge of the shaft displacement limiting portion 13 more closely, for example, in the vicinity of the junction of the arc-shaped portion 131 and the straight-line portion 132, the degree of the abutting against the inner edge of the fourth shaft P4 is maximized, so that in the process that the hook control 60 drives the nail striking plate 20, the abutting force of the hook control 60 becomes smaller to be larger, so that the other arm P4 can slightly abut against (even not contact) against the arc-shaped portion 131 at the initial stage of displacement, and the other arm P4 can be more easily pulled up against the tension spring than the existing tension spring, thereby achieving better tension effect of driving the nail plate 20.

The torsion spring is used for the elastic member 70, and the elastic member 70 is mounted at the second shaft portion 12 by the ring mounting portion 71, so that the swing moment can be directly generated on the hook control member 60, besides the stress on the second shaft P2 can be reduced, compared with the existing design using the tension spring or the compression spring, the elastic member 70 of the present invention can make the space utilization and arrangement of the components easier.

Furthermore, after the stapler of the present invention is fired, that is, in the state shown in fig. 5, since the first hole 44 is designed as a long hole, the user can pull the operation arm 40 backward, so that the clasp 18 provided on the machine body 10 can easily and firmly clasp the operation arm 40 to receive the stapler.

In addition to the above illustration, the invention may be variously practiced as follows:

For example, the shaft movement restriction portions 13 of the body 10 are not limited to be formed equidistantly around the center of the second shaft receiving portion 12. The shaft movement limiting portion 13 of the body 10 is not limited to the upper edge of the fourth shaft P4 as described above, and the shaft movement limiting portion 13 may be limited to the lower edge of the fourth shaft P4 instead, and the shaft movement limiting portion 13 may be limited to both the upper edge of the fourth shaft P4 and the lower edge of the fourth shaft P4 instead. Alternatively, the arm plate 43 of the operation arm 40 is not limited to two, and the pivot piece 50 is not limited to two, but may be one. Alternatively, for example, the first hole 44 of the operation arm 40 is not limited to a straight long hole as in the embodiment, but may be a round hole or an arc long hole. Alternatively, the second hole 61 of the hook control 60 is not limited to a straight slot as in the embodiment, but may be a circular hole or an arc slot.

Finally, it should be understood that the above-described embodiments of the present invention are merely illustrative, and are not intended to limit the scope of the present invention, and other equivalents and alternatives thereof are intended to be covered by the scope of the appended claims.

Claims (8)

1. A bookbinding machine with improved linkage structure, comprising:

A machine body having a first shaft portion, a second shaft portion, and a shaft movement limiting portion;

a first shaft connected to the first shaft part of the body;

a second shaft connected to the second shaft part of the body;

a nail striking plate which is arranged in the machine body in a vertical displacement manner; the nail striking plate is provided with a spring supporting hole and a hooking hole;

The driving spring is arranged in the machine body, and one end of the driving spring is inserted into the spring supporting hole of the nail striking plate;

An operating arm having a first hole and a first lower pivot hole; the first hole is penetrated by the first shaft;

the third shaft is connected with the first lower pivot hole of the operation arm;

a pivot piece having a second lower pivot hole and a first upper pivot hole; the second lower pivot hole is pivoted by the third shaft;

The hooking control part is provided with a second hole penetrated by the second shaft, a driving swing long hole penetrated by the third shaft, a second upper pivot hole and a hooking control part, and the hooking control part hooks the hooking control hole of the nail striking plate;

A fourth shaft pivoted with the first upper pivot hole of the pivot connection piece and the second upper pivot hole of the hook control piece, and the fourth shaft moves against the shaft movement limiting part of the machine body when the hook control piece swings; and

An elastic member having a first end connected to the body and a second end connected to the hooking control member, such that the hooking control portion of the hooking control member is displaced downward by the elastic force of the elastic member;

The first distance is smaller than or equal to the second distance.

2. The binding machine with improved linkage structure as claimed in claim 1, wherein the first distance is smaller than the second distance.

3. The binding machine with improved linkage structure according to claim 2, wherein the first distance is 0.8 to 0.9 times the second distance.

4. The binding machine with improved linkage structure according to any one of claims 1 to 3, wherein the shaft movement limiting part is located above the first shaft connecting part and the second shaft connecting part.

5. The binding machine with improved linkage structure according to claim 4, wherein the shaft limiting part is provided with an arc-shaped section, and the fourth shaft is abutted against the arc-shaped section of the shaft limiting part when the hook control swings.

6. The binding machine with improved linkage structure according to claim 5, wherein the shaft limiting part is further provided with a straight line section integrally connected with the arc section; the contact degree of the fourth shaft against the shaft limiting part when the hook control swings gradually increases from the arc-shaped section to the linear section.

7. The binding machine with improved linkage structure according to any one of claims 1 to 3, wherein an angle is formed between an extension line passing through the axis of the first shaft and the axis of the third shaft and another extension line passing through the axis of the third shaft and the axis of the fourth shaft, and the angle is between 30 degrees and 57 degrees.

8. The binding machine with improved linkage structure according to any one of claims 1 to 3, wherein the elastic member is a torsion spring, and the torsion spring has a loop portion, and the first and second connecting ends extend from the loop portion; the ring-shaped part is sleeved on the second shaft connecting part of the machine body; the first connecting end is arranged on the first connecting shaft part, and the second connecting end is arranged on the hooking control part.