TWI548492B - Hand tool warning device - Google Patents

Description

Torque warning structure for turning the hand tool

The invention relates to a flipping hand tool, in particular to a torsion warning structure of a flipping hand tool which utilizes the deformation of the elastic piece and the sounding to achieve the warning function.

Press and turn the hand tool to use the principle of lever to pull the screw to achieve the effect of tightening or loosening. It is necessary to assemble and combine the components of various industries by the screw firmware. The general industrial products need to use each due to structural differences. The type of screw is assembled and fixed with different torques. If the force of pulling the screw is insufficient or too large, the structure and the screw may be invalid or damaged, and the turning tool is the key to controlling the torque. Therefore, the design related to torque control has been the focus of the industry development, and the market has introduced some new structures from time to time.

However, the torque warning structure of the conventional hand-turning tool has many shortcomings of complicated components, complicated structure, inconvenient assembly, high manufacturing cost, and makes the wrench tool large in size, inconvenient to store and carry, so it is improved. Necessary.

The present inventors have the disadvantages of high manufacturing cost and large volume in view of the torque warning structure of the conventional hand-turning tool, which is based on the idea of design and design, and after multiple trials and trials, and after many corrections and improvements. The present invention has been introduced.

The invention provides a torsion warning structure for a wrench tool, which is applied to a a wrench tool having at least one trigger for driving the wrench tool to perform a turning action, the trigger having a point and at least one force applying point on a plane, the torque warning structure comprising at least one elastic piece The at least one elastic piece is separately disposed or superposed on at least one force applying point of the trigger of the wrench tool, and the elastic piece is provided with an urging portion and a contact portion, and the height between the urging portion and the contact portion is utilized. The changing means is such that the urging portion and the contact portion have a height difference, and the contact portion of the elastic piece is in contact with the urging point of the trigger; thereby, the urging portion can be pushed to rotate the rotating hand tool to perform the tightening Or unscrewing the screwing action of the screw, and when the screw is tightened to a predetermined tightness so that the force of the pushing portion is greater than the deformation resistance of the elastic piece, the elastic piece is forced to deform and emit a sound, reaching a warning The role.

The main object of the present invention is that the at least one elastic piece is fixed on the urging point of the trigger of the wrench tool, the component is small, the structure is simple, the assembly is convenient, the manufacturing cost is low, and the economic benefit is met.

A second object of the present invention is that the at least one elastic piece is fixed on the urging point of the trigger of the wrench tool, and the volume of the wrench tool is hardly increased, and the storage and carrying are facilitated.

1‧‧‧Change hand tools

11‧‧‧ Trigger

111‧‧‧ fulcrum

112‧‧‧Applied

112a‧‧‧First point of application

112b‧‧‧second point of application

113‧‧‧ plane

12‧‧‧ accommodating space

13‧‧‧Tool head

2‧‧‧Shrap

21‧‧‧Remove the Ministry

22‧‧‧Contacts

3‧‧‧ sheath

31‧‧‧Attendance Department

H‧‧‧ height difference

D‧‧‧ force arm

D1‧‧‧first force arm

D2‧‧‧second force arm

The first figure is a perspective view of the appearance of the present invention.

The second drawing is a perspective exploded view of the present invention.

The third figure is a cross-sectional view taken along line A-A of the first figure.

The fourth figure is a partial enlarged view of the third part of the third figure.

The fifth figure is a schematic diagram of the operation of the present invention.

The sixth figure is a schematic cross-sectional view of the elastic piece of the present invention.

Figure 7 is a perspective view showing the appearance of another embodiment of the present invention.

The eighth figure is a sectional view taken along line B-B of the seventh figure.

The ninth figure is a partial enlarged view of part B of the eighth figure.

Referring to the first figure, the second figure, the third figure and the fourth figure, the present invention is a torsion force warning structure of a wrench tool, which is applied to a wrench hand tool 1 which has a tool for driving the hand. The two triggers 11 are arranged in parallel. One of the triggers 11 is provided with a point 111 and a force applying point 112 on a plane 113. The point 111 and the point of application 112 are between A urging arm d is formed, and an accommodating space 12 is formed between the two shanks 11 . The accommodating space 12 is internally provided with a plurality of rod-shaped tool heads 13 . The torsion warning structure comprises at least one elastic piece 2 and a sheath 3 . The at least one elastic piece 2 is a circular piece having elasticity, and is separately disposed or superposed on the applying point 112 of the trigger 11 of the flipping hand tool 1 (in this embodiment, two elastic pieces 2, the two elastic pieces 2) The elastic piece 2 is fixed on the urging point 112 of the triggering tool 1 , and the elastic piece 2 is provided with an urging portion 21 and a contact portion 22 , and the height between the urging portion 21 and the contact portion 22 is utilized. The changing means is such that the urging portion 21 and the contact portion 22 have a height difference h, and the contact portion 22 of the elastic piece 2 and the trigger 11 are applied. The cover 3 is made of a soft material such as rubber or silicone rubber, and is sleeved on the force applying point 112 of the trigger 11 and wrapped around the outer side of the at least one elastic piece 2, and one side thereof is provided with a bearing. The abutting portion 31 is engaged with the abutting portion 21 of the elastic piece 2.

Accordingly, when used, as shown in FIG. 5, the rod-shaped tool head 13 of the turning hand tool 1 is pivoted to be perpendicular to the trigger 11 and fits with the screw to be turned (not shown). The abutting portion 31 of the sheath 3 abuts against the pushing portion 21 of the elastic piece 2 to rotate the turning hand tool 1 to perform tightening or loosening When the screw is tightened to a predetermined tightness, and the force of the abutting elastic piece 2 against the pushing portion 21 is greater than the deformation resistance of the elastic piece 2, the elastic piece 2 is used as shown in the sixth figure. The height difference h between the pushing portion 21 and the contact portion 22 is forced to be deformed and a sound is emitted to achieve a warning function to avoid the application of excessive force to cause the structure and the screw to lose utility or damage.

Furthermore, as shown in the seventh, eighth, and ninth views, the torsion warning structure of the flipping hand tool of the present invention, the trigger handle 11 of the flipping hand tool 1 can also be provided with a point 111 and a first applied point, The second urging point 112a, 112b is formed on a plane 113, and a first urging arm d1 is formed between the fulcrum 111 and the first urging point 112, and a second application is formed between the fulcrum 111 and the second urging point 112b. The force arm d2, and the first force applying arm d1 is smaller than the second force applying arm d2, and the elastic piece 2 is separately disposed or superposed on the first force applying point 112a and the second applying portion of the trigger 11 of the turning hand tool 1. The sleeve 3 is fixed on the first point of application 112a and the second point of application 112b of the trigger 11, and is wrapped on the outer side of the at least one elastic piece 2, and has two sides on one side thereof. The abutting portion 31 is respectively engaged with the elastic piece 2 abutting portion 21 on the elastic piece 2 abutting portion 21 and the second force applying point 112b on the first force applying point 112a.

Accordingly, in use, the two receiving portions 31 of the sheathing portion 3 can be used to push the elastic piece 2 against the pushing portion 21 or the second force applying portion 112b on the first force applying point 112a against the pushing portion 21, The length of the first urging arm d1 and the second urging arm d2 are different, and when the tightening action of the tightening or unscrewing screw is performed, the elastic piece 2 can be deformed and emitted under different torque conditions. One sound, reaching the two-stage torque warning function.

In addition, three or more force applying points may be set on the trigger 11 of the turning hand tool 1 to achieve a multi-stage torque warning function.

From the structure of the above specific embodiment, the following benefits can be obtained:

1. The torsion warning structure of the flipping hand tool of the present invention, which is characterized by at least one elastic piece 2 It is fixed on the application points 112, 112a, 112b of the trigger 11 of the flip-flop tool 1. The components are few, the structure is simple, the assembly is convenient, the manufacturing cost is low, the economy is economical, and the product market competitiveness is improved.

2. The torque warning structure of the flip-flop tool of the present invention is fixed on at least one elastic piece 2 disposed on the force applying points 112, 112a, 112b of the trigger 11 of the flip-flop tool 1, and the volume of the wrench tool 1 is hardly increased. It can be easily stored and carried to achieve convenient and practical functions.

1‧‧‧Change hand tools

11‧‧‧ Trigger

111‧‧‧ fulcrum

112‧‧‧Applied

113‧‧‧ plane

12‧‧‧ accommodating space

13‧‧‧Tool head

2‧‧‧Shrap

21‧‧‧Remove the Ministry

22‧‧‧Contacts

3‧‧‧ sheath

31‧‧‧Attendance Department

Claims (4)

A torsion force warning structure for a wrench tool is applied to a wrench tool having at least one trigger, the trigger handle having a point and at least one force applying point, the torque warning structure comprising at least one elastic piece, The at least one elastic piece is separately disposed or superposed on at least one force applying point of the trigger of the wrench tool, and the elastic piece is provided with an urging portion and a contact portion, and the height difference between the urging portion and the contact portion is utilized. The method has a height difference between the urging portion and the contact portion, and the contact portion of the elastic piece is in contact with the urging point of the trigger, and the urging portion is configured to rotate the urging tool to rotate, and When the force of the pusher is greater than the deformation resistance of the shrapnel, the shrapnel will be forced to deform and make a sound, which will serve as a warning. The torsion warning structure of the wrench tool according to claim 1, wherein a force applying arm is formed between the fulcrum and the force application point. The torsion warning structure of the wrench tool according to claim 1, wherein the elastic piece is a circular disk body having elasticity. The torsion warning structure of the flip-flop tool of claim 1, further comprising a sheath sleeve coupled to the point of application of the trigger and covering the outer side of the at least one elastic piece One side of the sheath is provided with an abutting portion and abutting portion of the elastic piece.