JP2003340733A - Spanner for preventing slip or corner dulling - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spanner for preventing any slip or corner dulling. <P>SOLUTION: A throat hole 45 is formed between a first jaw 43 and a second jaw 44 extended from a head 42 on one end of a handle, a first recessed part 451 is formed at a middle stage position of the throat hole, a first tooth section 431 and a second tooth section 441 are formed parallel to inner sides of the first and second jaws, and the first tooth section and the second tooth section are installed in an asymmetrical manner. A second recessed part 452 is formed at a position continuous the throat hole on one side of the first tooth section, a third recessed part 453 is formed at a position continuous the throat hole on one side of the second tooth section, and the second recessed part and the first recessed part are diagonally connected to each other on a first plane 454. When a fixed part is inserted in the throat hole of the spanner 40, three end angles on one side of the fixed part are accommodated in the first, second and third recessed parts, respectively, and the fixed part is engagement-supported by the first and second tooth sections to allow the spanner to achieve the function of preventing any slip or corner dulling. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a type of spanner, and more particularly to a type of spanner for preventing slippage and corner collapse.

[0002]

2. Description of the Related Art Among traditional industries, hand-held tools, especially hand-held tools, have a large market for sale, because the factors such as quality, practicality and good operability all occupy the market advantage. Can be secured. Therefore, the manufacturing method and process of hand-held tools are directly related to the cost and the production speed,
It will also be the most important competitiveness of current hand tools.

FIG. 1 shows a well-known open end wrench 10 which comprises a handle 11 from which one of two substantially equal lengths of a first jaw 12 and a second jaw 13 extends from the first end of the handle 11. A throat 14 is formed between the jaw 12 and the second jaw 13, and the throat 14 is mounted on a hexagonal fixing part 20 having six sides and six corners. The inner sides of the two jaws 13 are provided with parallel abutting sides 121 and 131, respectively, which are separated from each other by a predetermined distance, and when the turning operation is performed, the abutting sides 121 and 131 are respectively the first side of the fixed part 20. The spanner 10 is brought into contact with the side 21 and the second side 22 to receive a force to drive the fixed component 20, and the fixed component 20 is reliably rotated by the spanner 10. However, the contact sides 121, 1
Since 31 is a flat surface, an idle state is likely to occur when turning, the throat 14 causes a friction phenomenon, wears and crushes the corners, and when turning, the second side corresponding to the contact sides 121 and 131. The third corners 24 and 25 also generate friction with the contact sides 121 and 131, the corners are rounded, and the throat 14 of the open-end spanner 10 has an inward concave arc shape, and the fixed part 20 is fixed.
The open-end spanner 10 needs to be improved because it does not come into contact with the positions of the third and fourth sides 26 and 27 of the above and cannot provide a relatively high torque expression during the turning process.

FIG. 2 shows another known open-end spanner 30 structure which solves the above-mentioned drawbacks, and its handle 31.
Mating teeth 321 and 331 are respectively provided on the inner side surfaces of the first and second jaws 32 and 33 at one end of the, and in the process of turning, they bite the first side 21 and the second side 22 of the fixed component 20, Is trying not to generate idle conditions. This has the function of anti-slip, but the first corner 23 of the fixed part 20 easily causes the phenomenon of friction with the throat 34, and the second and third corners 24, 25 and the first and second corners of the fixed part 20. As the inner surfaces of the jaws 32, 33 rotate, a frictional situation occurs, which is not yet improved and the throat 1 of the open end spanner 10
Since 4 has the shape of an inwardly concave arc, it cannot contact the third and fourth side positions of the fixed component 20 and cannot provide a relatively high torque expression, and of course, there is a need for improvement. It was

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a kind of anti-slip and corner crushing spanner, which solves the above-mentioned problems of the conventional spanner formed on a fixed part.

[0006]

According to a first aspect of the present invention, in a spanner for preventing slippage and corner collapse, a handle is provided, a head is provided at one end thereof, and a first jaw and a second jaw are extended from the head. A throat is formed between the first jaw and the second jaw, and a first recess is provided at a middle position of the throat,
A first tooth segment and a second tooth segment that are parallel to each other are provided inside the jaw and the second jaw, respectively, and the first tooth segment and the second tooth segment are installed asymmetrically. A second recess is provided at a position connected to the throat, a third recess is provided at a position connected to the throat on one side of the second tooth segment, and the second recess and the third recess are oblique first The third concave portion and the first concave portion are connected to each other in a flat surface, and the second concave portion is inclined.
When the fixing part is inserted into the throat of the spanner, the three corners on one side of the fixing part are fitted into the first recess, the second recess, and the third recess, respectively, and The first and second flat surfaces abut on both sides of the three corners of the fixed part, and the fixed part is supported by the first tooth space and the second tooth space and bites,
A spanner for preventing slippage and corner collapse, which is characterized in that the spanner achieves the functions of slip prevention and corner collapse prevention.
The invention of claim 2 is the spanner for preventing slippage and corner collapse according to claim 1, wherein the tooth profile of the second tooth segment is set larger than the tooth profile of the first tooth segment. It is used as a wrench for prevention. The invention of claim 3 is the spanner for preventing slippage and corner crushing according to claim 1, wherein
A spanner for preventing slippage and corner crushing, characterized in that the number of teeth in the tooth space is smaller than the number of teeth in the first tooth space. Claim 4
The invention of claim 1 is a spanner for preventing slippage and corner collapse according to claim 1, wherein the first tooth segment has four teeth, and each one tooth has a flat abutment surface having the same longitudinal length. The tooth area has three teeth installed from the spanner opening position toward the inside of the throat,
A spanner for preventing slippage and corner crushing, characterized in that the vertical lengths of the flat contact surfaces of the three teeth of the second tooth segment are different from each other. The invention of claim 5 is the spanner for preventing slippage and corner collapse according to claim 4, wherein the three teeth of the second tooth segment are in order from the wrench opening position toward the inside of the throat.
Tooth, second tooth, third tooth, the vertical length of the flat contact surface of the first tooth is the longest of the three teeth, and the vertical length of the flat contact surface of the third tooth is The spanner has the second longest feature and is a non-slip and crush-proof spanner. The invention of claim 6 is
The spanner for preventing slippage and corner collapse according to claim 4, wherein the vertical contact lengths of the flat contact surfaces of two teeth of the second tooth segment are the flat contact of four teeth of the first tooth segment. It is a spanner that is larger than the surface and prevents slipping and corner crushing. The invention of claim 7 is the spanner for preventing slippage and corner collapse according to claim 4, wherein when the fixed part is inserted into the throat of the spanner, two corresponding corners on the other side of the fixed part are located at the first position. A spanner for preventing slippage and corner collapse, which is characterized in that it is not in contact with the flat contact surfaces of the teeth of the first tooth segment and the teeth of the second tooth segment.

[0007]

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a kind of anti-skid and anti-corner wrench that comprises a handle and has a throat between a first and a second jaw extending from the head at one end of the handle. A hole is provided, a first recess is provided at the middle position of the throat, and there are a first tooth segment and a second tooth segment that are parallel to the inside of the first and second jaws, and a first tooth segment and a second tooth segment. Are installed asymmetrically, and a second recess is provided at a position that is connected to the throat on one side of the first tooth segment,
A third recess is provided at a position connected to the throat on one side of the second tooth segment, the second recess and the first recess are obliquely connected at the first plane, and the third recess and the first recess are oblique. They are connected in the second flat face. Accordingly, when the fixed part is inserted into the wrench of the spanner, the three end angles of one side of the fixed part are housed in the first recess, the second recess, and the third recess, respectively, and the fixed part is placed in the first tooth space. The wrench achieves the functions of preventing slippage and corner crushing by being meshed with and supported by the second tooth space.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention provides a kind of wrench for preventing slipping and corner collapse, and a detailed description of an embodiment of the present invention will be given below with reference to the drawings.

As shown in FIG. 3, the present invention is provided with a handle 40, and a head 42 is provided at one end of the handle 40, and a first jaw 43 and a second jaw 44 having substantially the same length as the head are provided.
The throat 45 is extended between the first and second jaws 43 and 44.
And a first recess 451 is provided in the middle position of the throat 45.

The inner surfaces of the first jaw 43 and the second jaw 44 are separated from each other by a predetermined distance, and the first tooth space 431 is formed on the inner surface of the first jaw 43.
And the first tooth space 431 comprises four teeth 432, each one of the teeth 432 having a flat abutment surface 43 of the same longitudinal length.
3, a second recess 452 is provided at a position connected to the throat 45 on one side of the first tooth space 431, and a second tooth space 441 is provided on the inner surface of the second jaw 44.

The second tooth space 441 includes a first tooth 442, a second tooth 443 and a third tooth 444 installed from the opening position of the spanner 10 toward the inside of the throat 45, and the number of teeth of the second tooth space 441 is large. Is less than the number of teeth of the first tooth segment 431, and the first tooth 44
The vertical length of the second flat contact surface 442a is the longest of the three teeth, and the vertical length of the flat contact surface 443a of the second tooth 443 is the shortest of the three teeth. The vertical length of the flat abutment surface 444a of 444 is between the remaining two teeth, and the vertical length of the flat abutment surface 444a of the third tooth 444 is the flat length of the four teeth 432 of the first tooth space 431. A third recess 453 is provided at a position that is longer than the contact surface 433 and is connected to the throat 45 on one side of the third tooth 444.

The second recess 452 and the first recess 451 are the first
The third concave portion 453 and the first concave portion 451 are obliquely connected to each other by a second flat surface 455.

Shown in FIG. 4 is the first jaw 43 of the present invention.
FIG. 6 is a state display diagram in which the second jaw 44 sandwiches one fixing component 50. The first corner 51, the second corner 52, and the third corner 53 of the fixed component 50 are respectively the second recess 452, the first recess 451, and the first recess 451.
It is fitted in the third recess 453, and the first flat surface 454 and the second flat surface 455 of the throat 45 contact the positions of the third side edge 503 and the fourth side edge 504 of the fixed component 50, and the first tooth. The first side edge 501 and the second side edge 502 of the fixed component 50 are supported by the first tooth segment 431 and the second tooth segment 441 by the installation of the block 431 and the second tooth segment 441, and the fourth corner of the fixed component 50. 54 and the fifth corner 55 are the flat contact surfaces 4 of the teeth 432 of the first tooth space 431.
32 and the flat contact surface 44 of the first tooth 442 of the second tooth space 441
Does not come into contact with 2a.

FIG. 5 is a display diagram showing a state in which the present invention is turned. First side 501 and second side of fixed part 50
The lateral side 502 is supported by the first tooth space 431 and the second tooth space 441, has an anti-slip effect when rotated, and has a second tooth space 441.
The number of teeth installed in the
The first abutment surface 442a of the first tooth 442 and the third tooth 444,
Each of the vertical lengths of 444a is the tooth 4 of the first tooth segment 431.
The second tooth space 441 is larger than the flat contact surface 433 of 32.
Tooth profile can be set larger than the tooth profile of the first tooth segment 431, and in addition to the anti-slip effect, the supporting force of the second tooth segment 441 can be increased, which is advantageous for expressing the torque value of the spanner 40. Further, when the fixed part 50 is rotated by the spanner 40, the first and second flat linear surfaces 454, 455 have the anti-slip effect, and
Abutting on the positions of the third side 503 and the fourth side 504 of 0,
The effect of driving the fixed part 50 is enhanced and provides a relatively high torque representation. In addition, the fixed part 50 is the spanner 40.
When the three corners are turned into, the three corners can be fitted into the respective recessed positions, and it is possible to prevent the occurrence of a situation where the corners are pressed and the corners are rounded.
Therefore, the present invention is certainly inventive and meets the requirements of the patent.

[0015]

As described above, the present invention has the following excellent points. 1. The anti-slip and angle crushing spanner of the present invention is provided with three recesses at the throat position of the snapper, and when the fixing means is accommodated at the throat position of the spanner, three corners of the recesses are in the three recesses. The corners of the spanner do not rub against the inner wall of the throat during the operation of turning the wrench when it is stored, and the crushing of the corner does not occur. 2. The spanner for preventing slippage and corner collapse of the present invention has a slippery effect when the fixed part is rotated by the spanner, and the first and second flat surfaces contact the third side edge and the fourth side edge position of the fixed part, It is possible to enhance the effect of driving the fixed parts and provide a relatively high torque value expression. 3. In the spanner for preventing slippage and corner collapse of the present invention, the first tooth section and the second tooth section of the first and second jaws are installed asymmetrically, and the second tooth section is installed with a relatively small number of teeth. The tooth profile of the two tooth spaces can be made larger than that of the first tooth space, and in the process of turning,
In addition to the anti-slip effect, the bearing capacity of the second tooth segment can be increased, which has an advantageous effect on turning.

[Brief description of drawings]

FIG. 1 is a display view of a known open end spanner holding a fixed component.

FIG. 2 is a view showing the operation of holding a fixed part of another known type of open-end spanner.

FIG. 3 is a plan view of a spanner of the present invention.

FIG. 4 is a view showing a fixed part sandwiched by a spanner of the present invention.

FIG. 5 is a display view of the operation of the spanner of the present invention for holding and rotating the fixed component.

[Explanation of symbols]

10 Open End Spanner 11 Handle 12 First Jaw 121 Abutment Side 13 Second Jaw 131 Abutment Side 14 Throat 20 Fixing Part 21 First Side Side 22 Second Side Side 23 First Corner 24 Second Corner 25 Third Corner 26 Third Side Side 27 Fourth Side Side 30 Open End Spanner 31 Handle 32 First Jaw 321 Interlocking Teeth 33 Second jaw 331 Interlocking Teeth 34 Throat 40 Spanner 41 Handle 42 Head 43 First Jaw 431 First Dental Block 432 Teeth 433 flat contact surface 44 second jaw 441 second tooth space 442 first tooth 442a flat contact surface 443 second tooth 443a flat contact surface 45 throat 451 first recess 452 second recess 453 third recess 454 first Flat surface 455 Second flat surface 50 Fixed part 51 First corner 52 Second corner 53 Third corner 54 Fourth corner 55 Fifth corner 501 First side 502 Second side 503 Third side 504 Fourth side

Claims (7)

[Claims] 1. A spanner for preventing slippage and corner collapse, wherein a handle is provided, a head is provided at one end thereof, and a first jaw and a second jaw are extended from the head, and the first jaw and the second jaw are extended.
A throat is formed between the jaws, a first recess is provided at the middle position of the throat, and parallel first and second tooth spaces are provided inside the first and second jaws, respectively. The first dentition and the second dentition are installed asymmetrically, and a second recess is provided at a position connected to the throat on one side of the first dentition, and the throat on one side of the second dentition is provided. 3rd at the position connected to the hole
A concave portion is provided, the second concave portion and the third concave portion are connected with each other by an oblique first flat surface, and the third concave portion and the first concave portion are connected with each other by an oblique second flat surface. When inserted into the throat,
The three corners on one side of the fixing part are respectively the first recess and the second recess.
It fits into the recess and the third recess, and the first and second flat surfaces abut on both sides of the three corners of the fixed part, and the fixed part is supported by the first tooth segment and the second tooth segment and bites to the spanner. A spanner for preventing slippage and corner crushing, which has a function of preventing slippage and corner crushing. 2. A spanner for preventing slippage and corner collapse according to claim 1, wherein the tooth profile of the second tooth segment is set larger than the tooth profile of the first tooth segment. spanner. 3. The spanner for preventing slippage and corner collapse according to claim 1, wherein the number of teeth in the second tooth segment is smaller than the number of teeth in the first tooth segment. . 4. A spanner for preventing slippage and corner collapse according to claim 1, wherein the first tooth segment has four teeth, and each one tooth has a flat abutment surface of the same vertical length. The two tooth spaces are provided with three teeth installed toward the inside of the throat from the wrench opening position, and the vertical lengths of the flat contact surfaces of the three teeth of the second tooth space are different. A wrench that prevents slipping and crushing corners. 5. The spanner for preventing slippage and corner collapse according to claim 4, wherein the three teeth of the second tooth segment are in order from the spanner opening position toward the inside of the throat, the first tooth, the second tooth, and the second tooth. It has three teeth, the vertical length of the flat contact surface of the first tooth is the longest of the three teeth, and the vertical length of the flat contact surface of the third tooth is the second longest. A spanner that prevents slipping and crushing corners. 6. The spanner for preventing slippage and corner collapse according to claim 4, wherein the longitudinal lengths of the flat contact surfaces of two teeth of the second tooth segment are all four of the first tooth segment. A spanner for preventing slippage and corner collapse, which is larger than the flat contact surface of the teeth. 7. The anti-skid and anti-corner wrench according to claim 4, wherein when the fixed part is inserted into the throat of the spanner, two corresponding corners on the other side of the fixed part have the first teeth. A spanner for preventing slippage and corner crushing, characterized in that it is not in contact with the flat contact surfaces of the teeth of the ridge and the teeth of the second ridge.