TWI723786B - Belt tightening tool - Google Patents

Abstract

The present invention includes a first control element and a second control element that are pivoted by a pivot, a torsion spring that abuts the first control element and the second control element, and a cutting assembly and a tension spring; the second control element is provided There is a guide hole, the pivot can be movably inserted into the guide hole, the cutting assembly is provided with an actuating member pivoted to the second manipulating member, and is pushed by the actuating member to cut off the cut of the strap The broken piece, the tension spring is combined with the actuating piece and the second operating piece to be in a stretched state, allowing the actuating piece to stop the pivot from moving along the guide hole; the tension spring of the present invention pulls the actuating piece to prevent The actuator pushes the cutting piece out and cuts the strap. When the user's force overcomes the tension of the tension spring, the curved guide hole guides the pivot, and the movable pivot can drive the actuation The parts push the cutting part to cut the belt with less effort, which can solve the problems of inconvenient structure and inconvenient operation of the existing belt tool, and provides a belt bundle that can complete the tightening of the belt and the cutting of the belt at one time Tight tool.

Description

Belt tightening tool

The invention relates to a belt tightening tool, in particular to a belt tightening tool that can complete tightening and cutting the belt at one time.

Drawstrings are often used to organize wires or to bundle long rods; in order to ensure that the straps can be firmly tightened on objects, users usually use drawstring tools, such as drawstring guns, drawstring scissors, etc. Tighten the straps.

As shown in FIG. 10, a conventional strap tool 100 includes a first grip 100A, a second grip 100B, and a third grip 100C; wherein, the first grip 100A and the second grip 100B is pivoted, the first grip 100A is provided with a stopper (not shown) for clamping the strap, the second grip 100B is provided with a cutting member 100D for cutting the strap; the third grip The handle 100C is pivotally connected to the first handle 100A and connected to the cutting piece 100D.

When using the existing strap tool 100 to tighten the strap, first pass the end of the strap through the strap buckle, and then pass the strap through the first grip 100A and the second grip 100B, When the user operates the first grip 100A and the second grip 100B, the stopper provided on the first grip 100A can clamp the strap, and the second grip 100B can push the strap buckle of the strap , To tighten the strap to make the strap tightly tightened to the article; finally, the user presses the third handle 100C to push out the cutting piece 100D, and then cuts the strap.

However, the existing strapping tool 100 needs to be additionally provided with the third grip 100C to control the cutting member 100D, resulting in inconspicuous structure, and the user needs to operate the third grip 100C to cut the strap. The problem of inconvenience in operation.

In order to solve the problems of the existing belt tools, the structure is not simplified and the operation is inconvenient. The invention provides a belt tightening tool, which is provided with a movable pivot, a tension spring, and a cutting assembly. The invention uses the tension spring to pull the actuating member of the cutting assembly to prevent the actuating member from turning The cutting piece provided by the cutting assembly pushes out and cuts the belt. When the user's force overcomes the tension of the tension spring, the movable pivot can drive the actuator to push the cutting piece to cut the belt. , And then can achieve the purpose of tightening the strap and cutting the strap in one operation.

The belt tightening tool proposed by the present invention to solve the technical problem includes: a first control element, which includes a clamping end and an operating end opposed to each other; a second control element, which includes two linearly opposed A guide hole, and a cutting end and an adjustment end opposite; a pivot, which penetrates the two guide holes to pivot the first manipulating member and the second manipulating member, the pivot can be along the two The guide hole is movable; a torsion spring, which includes two ends, the two ends of the torsion spring respectively abut against the first control element and the second control element, so that the clamping end of the first control element abuts against The shearing end of the second manipulating member; a cutting assembly, which includes an actuating member and a cutting member, the actuating member is pivoted to the second manipulating member, and the cutting member can be movably coupled to the second The manipulating element includes a cutting edge facing the cutting end of the second manipulating element, and the cutting element is pushed by the actuating element to reciprocate toward the cutting end and the adjusting end of the second manipulating element; and A tension spring, which includes a first end and a second end, the first end of the tension spring is coupled to the actuating member, the second end of the tension spring is coupled to the second operating member, the The tension spring is in a stretched state, so that the actuating member stops the pivot from moving along the two guide holes.

The improvement in efficacy that can be obtained by the technical means of the present invention is: the belt tightening tool of the present invention uses a tension spring to pull the actuating member of the cutting assembly to prevent the actuating member from pushing the cutting member of the cutting assembly toward The shearing end of the second control element, as long as the user exerts a large force on the first control element and the second control element The pulling force provided by the tension spring can drive the actuator to push the cut-off piece to cut the strap, so that the present invention does not need to set additional parts to control the cut-off piece, so that the present invention has a simple structure and a neat appearance. , And the advantage of easy operation.

10: The first control

101: Clamping end

102: Operation side

11: The first body

12: Clamping parts

20: The second control

21: The second body

22: Piercing

23: guide hole

231: First Guiding Section

232: curved section

233: Second Guiding Section

24: Observation hole

25: Restrictions

26: first baffle

27: second baffle

30: pivot

40: Torsion spring

50: Cut off components

51: Actuator

511: Pivot

512: Actuating arm

513: Stop Arm

52: cut off

511: guide rod

52: cut off

521: Blade

522: snap hook

523: Cutting Blade

60: Extension spring

70: Adjust components

71: The first adjustment piece

711: Screw

72: The second adjustment piece

721: screw hole

73: Knob

74: indicator

741: indicator board

742: Sign

80: Drawstring

81: drawstring buckle

90: Object

100: Drawstring tool

100A: first grip

100B: second grip

100D: Cut-off parts

100C: third grip

L1: length

L2: length

Fig. 1 is a perspective view of the appearance of a preferred embodiment of the present invention.

Fig. 2 is another perspective view of the appearance of the preferred embodiment of the present invention.

Figure 3 is an exploded view of the components of the preferred embodiment of the present invention.

Figure 4 is an exploded view of the detailed components of the preferred embodiment of the present invention.

Fig. 5 is an enlarged side view of the second body of the preferred embodiment of the present invention.

Figure 6 is a partial cross-sectional view of a preferred embodiment of the present invention.

Fig. 7 is a partial cross-sectional view of the operation of the preferred embodiment of the present invention.

Fig. 8 is a partial cross-sectional view of the operation of the preferred embodiment of the present invention.

Fig. 9 is a partial cross-sectional view of the operation of the preferred embodiment of the present invention.

Figure 10 is a partial cross-sectional view of a conventional strapping tool.

In order to understand the technical features and practical effects of the present invention in detail, and can be implemented in accordance with the content of the present invention, the preferred embodiment shown in the figure is further described in detail as follows:

As shown in Figures 1 to 3, the preferred embodiment of the belt tightening tool of the present invention includes a first operating member 10, a second operating member 20, a pivot 30, a torsion spring 40, and a cutting The assembly 50, a tension spring 60 and an adjustment assembly 70.

As shown in Figures 1 to 3 and Figure 6, the first operating member 10 includes a clamping end 101 and an operating end 102 opposed to each other, a first body 11 and a clamping member 12; The clamping member 12 has a block shape, is pivoted on the first body 11 and is close to the clamping end 101 of the first manipulation member 10.

As shown in FIGS. 1 to 5, the second operating member 20 includes a cutting end 201 and an adjusting end 202 opposite to each other, as well as a second body 21, a perforation 22, two guide holes 23, and an observation The hole 24, two restricting members 25, a first baffle 26 and a second baffle 27; wherein the through hole 22 penetrates the second body 21.

The two guide holes 23 penetrate the second body 21 and are straightly opposed. Each guide hole 23 is curved and includes a first guide section 231, a curved section 232, and a second guide section that are connected in sequence 233; the first guiding section 231 includes a terminal facing the shearing end 201 of the second manipulating member 20, and the first guiding section 231 extends toward the adjusting end 202 of the second manipulating member 20 to have a Length L1, the bending section 232 extends toward the shearing end 201 of the second manipulating element 20, and the second guiding section 233 includes a terminal end facing the shearing end 201 of the second manipulating element 20 having a length L2, The length L1 of the first guiding section 231 of each guiding hole 23 is smaller than the length L2 of the second guiding section 233 thereof.

As shown in FIGS. 1 to 5, the observation hole 24 penetrates the second body 21, is elongated, and extends toward the cutting end 201 and the adjustment end 202 of the second operating member 20; each restricting member 25 is rod-shaped, The two restricting members 25 are parallel to each other, and the two restricting members 25 pass through the second body 21 and are close to the shearing end 201 of the second operating member 20; the first baffle 26 and the second baffle 27 are combined with The second body 21 is spaced apart and is close to the adjustment end 202 of the second operating member 20.

As shown in Figures 1 to 3, the pivot 30 penetrates through the two guide holes 23 of the second operating member 20 and the first body 11 of the first operating member 10, so that the first operating member 10 and the first body 11 The second manipulation member 20 is pivotally connected, and the pivot 30 can move along the two guide holes 23; the two restriction members 25 are parallel to the pivot 30.

As shown in FIGS. 3 and 6, the torsion spring 40 includes two ends, and the two ends of the torsion spring 40 respectively abut against the first body 11 of the first operating member 10 and the second body 21 of the second operating member 20. , So that the clamping end 101 of the first operating member 10 abuts against the shearing end 201 of the second operating member 20.

As shown in Figures 1, 4, and 6, the cutting assembly 50 includes an actuating member 51 and a cutting member 52; wherein, the actuating member 51 includes a pivot portion 511, an actuating arm 512, and a block The stop arm 513, the pivoting portion 511 is provided with a pivot hole 5111 through which a positioning pin passes to pivot the actuating member 51 to the second body 21 of the second operating member 20, the actuating arm 512 and the second body 21 The stop arm 513 protrudes from the pivot portion 511, the end of the actuating arm 512 is provided with a locking protrusion 5121, and the stop arm 513 is recessed with a recess 5131.

The cutting member 52 includes a blade 521, a hook 522, and a cutting edge 523. The blade 521 includes two opposite ends. The blade 521 is located between the two restricting members 25 and the second body 21. The blade 521 is restricted by the two restricting members 25, so that the cutting member 52 can be movably combined with the second operating member 20 and can only reciprocate toward the cutting end 201 and the adjusting end 202 of the second operating member 20; The engaging hook 522 is arranged at one end of the blade 521, and the engaging hook 522 is engaged with the engaging protrusion 5121 of the actuating arm 512; the cutting edge 523 is arranged at the other end of the blade 521 and faces The shearing end 201 of the second manipulation member 20.

As shown in FIGS. 4 and 6, the extension spring 60 includes a first end and a second end. The first end of the extension spring 60 penetrates and is coupled to the stop arm 513 of the actuator 51. The second end of the tension spring 60 extends toward the adjusting end 202 of the second operating member 20 to be coupled to the adjusting assembly 70, and by combining the adjusting assembly 70 with the adjusting end 202 of the second operating member 20, The tension spring 60 is in a stretched state, so that the stop arm 513 of the actuating element 51 abuts against the pivot 30 with the recess 5131, so that the actuating element 51 can stop the pivot 30 along the The two guide holes 23 of the second operating member 20 are movable.

As shown in FIGS. 1 and 4, the adjustment assembly 70 includes a first adjustment member 71, a second adjustment member 72, a knob 73, and an indicator 74; wherein, the first adjustment member 71 is fixed to the pull The first end of the extension spring 60 includes a screw 711. The first adjustment member 71 is blocked by the first baffle 26, so that the extension spring 60 is in a stretched state; the second adjustment member 72 is rod-shaped And includes a screw hole 721, the second adjusting member 72 is screw-locked to the screw rod 711 of the first adjusting member 71 with the screw hole 721 provided, and the second adjusting member 72 is screw-locked to the screw rod 711 of the first adjusting member 71. The two adjusting members 72 are blocked by the second baffle 27, which can prevent the second adjusting member 72 from being separated from the second operating member 20; the knob 73 is fixed to the second adjusting member 72 and can be adjusted in the second The member 72 rotates together, and the knob 73 abuts against the adjusting end 202 of the second operating member 20; the indicating member 74 is combined between the second end of the tension spring 60 and the first adjusting member 71, the indicating member 74 includes an indicator plate 741 and an indicator mark 742 provided on the indicator plate 741. The indicator plate 741 shields the observation hole 24 of the second operating member 20 so that the indicator mark 742 can be exposed in the observation hole 24.

As shown in FIG. 6, the tension spring 60 in a stretched state exerts a force on the stop arm 513 of the actuator 51, so that the stop arm 513 pushes against the pivot 30 with the recess 5131 provided thereon. The pivot 30 is restricted to the first guide section 231 of each guide hole 23 to prevent the pivot 30 from moving along the two guide holes 23 of the second operating member 20.

As shown in Figures 7 and 8, a strap 80 surrounds a plurality of objects 90 and includes a strap buckle 81. When the strap 80 is inserted into the perforation 22 of the second operating member 20, and is inserted into the first When the first body 11 of an operating member 10 and the clamping member 12, as long as the user presses the operating end 102 of the first operating member 10 and the adjusting end 202 of the second operating member 20, the first body 11 and The clamping member 12 can clamp the strap 80 together, and the adjusting end 202 of the second operating member 20 pushes the strap buckle 81 of the strap 80 toward the plurality of objects 90, so that the strap 80 Tighten the plurality of objects 90.

As shown in FIGS. 8 and 9, when the strap 80 tightens the plurality of objects 90, the strap buckle 81 is blocked by the plurality of objects 90 and can no longer be pushed by the second manipulation member 20; When the user continues to press the first control element 10 and the second control element 20, the first control element 10 exerts a force on the pivot 30, and when the user's force overcomes the force provided by the tension spring 60 When pulling force, the pivot 30 can push the actuator 51 to move along each guide hole 23; when the pivot 30 passes through the curved section 232 of each guide hole 23 and then enters its second guide section 233 , The actuating member 51 can push the cutting member 52 with the provided actuating arm 512, so that the strap 80 is cut by the cutting edge 523 of the cutting member 52; Second guide segment The length L2 of the 233 is greater than the length L1 of the first guiding section 231, so that the pivot 30 and the cutting member 52 can move a sufficient distance and is sufficient to cut the strap 80.

As shown in Figures 7 to 9, when the strap 80 is cut, the second operating member 20 is no longer blocked by the strap buckle 81 and the plurality of objects 90; at this time, the tension spring 60 pulls again The actuating member 51, the actuating member 51 then pushes the pivot 30 with the stop arm 513 provided, and the pivot 30 returns to the second guide section 233 and the bending section 232 of each guide hole 23 One guide section 231.

If the user needs to adjust the tightness of the strap, the user can turn the knob 73 of the adjustment assembly 70 so that the second adjustment member 72 of the adjustment assembly 70 moves along the screw 711 of the first adjustment member 71 Approaching or farther away from the first adjusting member 71, thereby adjusting the extension length of the extension spring 60; the closer the first adjusting member 71 and the second adjusting member 72 are, the longer the extension length of the extension spring 60 , The greater the pulling force exerted by the tension spring 60 on the actuating member 51, the greater the force the user has to overcome, that is, after the plurality of objects 90 are tightened by the strap 80, the The belt 80 will be cut by the cutting member 52; on the other hand, when the first adjusting member 71 and the second adjusting member 72 are farther apart, the tension spring 60 exerts on the actuating member 51 The smaller it is, the easier it is for the strap 80 to be cut off, that is, the smaller the degree of tightening of the plurality of objects 90 is.

The user can observe the indicator plate 741 of the indicator 74 through the observation hole 24 of the second operating member 20, and judge the force exerted by the tension spring 60 by reading the indicator mark 742 on the indicator plate 741 .

Compared with the existing belt tightening tool 100, the belt tightening tool of the present invention does not need to be additionally provided with the third grip 100C to control the cutting piece 100D of the existing belt tightening tool 100. The belt tightening tool of the present invention The tool is not only simpler in structure and cleaner in appearance, the belt tightening tool of the present invention also allows the user to directly operate the first operating member 10 and the second operating member 20 to cut the belt. There is no need to cut the strap through the third grip 100C, which makes the present invention more convenient to use.

20: The second control

201: cut end

202: adjust end

21: The second body

22: Piercing

23: guide hole

231: First Guiding Section

232: curved section

233: Second Guiding Section

24: Observation hole

25: Restrictions

26: first baffle

27: second baffle

50: Cut off components

51: Actuator

5111: Pivot

52: cut off

521: Blade

522: snap hook

523: Cutting Blade

60: Extension spring

70: Adjust components

71: The first adjustment piece

711: Screw

72: The second adjustment piece

721: screw hole

73: Knob

74: indicator

741: indicator board

742: Sign

Claims (10)

A belt tightening tool, which includes: A first control element, which includes a clamping end and an operation end opposite to each other; A second control element, which includes two guide holes that are straightly opposed, and a cutting end and an adjustment end that are opposed to each other; A pivot, which penetrates through the two guide holes and pivots the first control element and the second control element, the pivot can move along the two guide holes; A torsion spring comprising two ends. The two ends of the torsion spring abut against the first control element and the second control element respectively, so that the clamping end of the first control element abuts against the shear of the second control element Cut ends A cutting component includes an actuating element and a cutting element. The actuating element is pivotally connected to the second operating element. The cutting element can be movably combined with the second operating element and includes a direction toward the second operating element. A cutting edge at the cutting end of the member, the cutting member is pushed by the actuating member to be able to reciprocate toward the cutting end and the adjustment end of the second operating member; and A tension spring includes a first end and a second end. The first end of the tension spring is coupled to the actuating member, and the second end of the tension spring is coupled to the second operating member. The tension spring is in a stretched state, so that the actuating member stops the pivot from moving along the two guide holes. The belt tightening tool according to claim 1, wherein each guide hole is curved and includes a first guide section, a curved section, and a second guide section that are connected in sequence, and the first guide The leading section includes a terminal end facing the cutting end of the second manipulating member, and the first guiding section extends toward the adjusting end of the second manipulating member, and the curved section extends toward the cutting end of the second manipulating member, The second guiding section includes a terminal end facing the shearing end of the second manipulating member. The belt tightening tool according to claim 2, wherein the length of the first guide section of each guide hole is less than the length of the second guide section. The belt tightening tool according to claim 3, wherein the second operating member includes a body and at least one limiting member, and the at least one limiting member is coupled to the body of the second operating member and is connected to the pivot Parallel; the cutting member includes a blade, the blade is limited between the at least one limiting member and the body of the second operating member. The belt tightening tool according to claim 4, which includes an adjustment assembly including a first adjustment piece, a second adjustment piece screw-locked to the first adjustment piece, and a second adjustment piece fixed to the first adjustment piece. A knob of the second adjusting member; the first adjusting member is fixed to the first end of the tension spring, and the knob abuts against the adjusting end of the second operating member. The belt tightening tool according to claim 5, wherein the second operating member is provided with an observation hole therethrough; the adjustment assembly includes an indicator piece, which is coupled to the second end of the tension spring Between the indicator and the first adjusting member, the indicator includes an indicator plate and an indicator mark arranged on the indicator plate. The indicator plate shields the observation hole so that the indicator mark is exposed on the observation hole. The belt tightening tool according to claim 6, wherein the second operating member includes a first baffle, and the first adjusting member is blocked by the first baffle. The belt tightening tool according to claim 7, wherein the second control member includes a second baffle, the second baffle is close to the adjustment end of the second control member, and the second adjustment member is Blocked by the second baffle. The belt tightening tool according to any one of claims 1 to 8, wherein the actuating member includes a pivot part, a coincidence arm, and a stop arm, and the pivot part is pivotally connected to the The second operating member, the actuating arm and the blocking arm are protruding from the pivot portion, the terminal of the actuating arm is provided with a locking convex portion, the blocking arm is recessed with a concave portion, and the blocking arm is The recess is provided against the pivot; the cutting member includes an engaging hook and a cutting edge, the blade includes two opposite ends, and the engaging hook is provided on one end of the blade and is connected to The locking protrusions of the actuating arm are engaged with each other. The belt tightening tool according to any one of claims 1 to 3, which includes an adjustment assembly, the adjustment assembly including a first adjustment member, and a second adjustment member screw-locked to the first adjustment member , And a knob fixed to the second adjusting member; the first adjusting member is fixed to the first end of the tension spring, and the knob abuts against the adjusting end of the second operating member.

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