JP3761166B2 - Anti-slip and anti-squash wrench - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a kind of spanner, and more particularly, to a kind of spanner for preventing slippage and preventing collapse of corners.
[0002]
[Prior art]
In traditional industries, especially hand-held tools have a large sales market, which can secure the market because factors such as quality, practicality and good operability all dominate the market. For this reason, the method and process of manufacturing a hand-held tool is closely related to the direct cost and production speed, and is the most important competitiveness of current hand-held tools.
[0003]
FIG. 1 shows a known open-end spanner 10 which includes a handle 11, from which one of the first jaw 12 and the second jaw 13 are extended from one end of the handle 11. A throat hole 14 is formed between the second jaws 13, and the throat hole 14 is provided on a hexagonal fixing part 20 having six sides and six corners, and the first jaw 12 and the second jaw 13. Abutting sides 121 and 131 that are parallel to the inner surface of each of the fixing parts 20 are provided, spaced apart from each other by a predetermined distance. The spanner 10 abuts against the second side 22 and receives the force to drive the fixed component 20, so that the fixed component 20 is reliably rotated by the spanner 10. However, since the contact sides 121 and 131 are flat surfaces, it is easy to generate an idle state when turning, and the throat 14 generates a friction phenomenon, wears and crushes corners, and when turned, the contact side 121 is turned on. , 131 also generate friction with the contact sides 121, 131, the corners become round, and the throat hole 14 of the open-end spanner 10 has an indented arc shape. The third and fourth sides 26 and 27 of the fixed component 20 do not come into contact with each other, and a relatively high torque expression cannot be provided in the process of turning. Therefore, the open-end spanner 10 needs to be improved. .
[0004]
FIG. 2 shows another well-known open-end spanner 30 structure that solves the above-mentioned drawbacks, and meshing teeth 321 and 331 are provided on the inner surfaces of the first and second jaws 32 and 33 at one end of the handle 31, respectively. In the turning process, the first side edge 21 and the second side edge 22 of the fixed component 20 are engaged with each other so that the idle state does not occur. This has a function of preventing slipping, but the first corner 23 of the fixing part 20 is liable to generate a friction phenomenon with the throat hole 34, and the second and third corners 24, 25 of the fixing part 20 and the first and second As the inner surfaces of the jaws 32 and 33 are rotated, a frictional state is generated, which has not been improved yet, and the throat hole 14 of the open-end spanner 10 has an inner concave arc shape. In this case, it was impossible to contact the position of the fourth side, and a relatively high torque expression could not be provided, and naturally there was a need for improvement.
[0005]
[Problems to be solved by the invention]
An object of the present invention is to provide a kind of anti-slip and anti-squash wrench, which improves the problems that the above-mentioned conventional spanner forms with respect to a fixed part.
[0006]
[Means for Solving the Problems]
The invention of claim 1 is a spanner for preventing slippage and preventing crushing of corners.
A handle is provided, a head is provided at one end thereof, the first jaw and the second jaw are extended from the head, and a throat hole is formed between the first jaw and the second jaw. A first recess is provided;
A first tooth and a second tooth that are parallel to the inside of the first jaw and the second jaw, respectively, and the first tooth and the second tooth are placed asymmetrically;
A second recess is provided at a position connected to the throat on one side of the first tooth section, a third recess is provided at a position connected to the throat hole on one side of the second tooth section, and the second recess And the third recess are connected with an oblique first flat face, and the third recess and the first recess are connected with an oblique second flat face, so that when the fixing part is inserted into the throat of the spanner, The three corners on one side of the fixed part are fitted into the first concave part, the second concave part and the third concave part, respectively, and the first and second flat faces abut on both sides of the three corners of the fixed part. Is supported by the first tooth section and the second tooth section and bites, and the spanner achieves the functions of anti-slip and anti-collapse.
According to a second aspect of the present invention, in the anti-slip and squashing spanner according to the first aspect, the tooth profile of the second tooth section is set larger than the tooth profile of the first tooth section. It is used as a spanner for prevention.
According to a third aspect of the present invention, in the anti-slip and anti-squashing spanner according to the first aspect, the number of teeth in the second teeth is less than the number of teeth in the first teeth, and anti-slip and anti-squash As a spanner.
According to a fourth aspect of the present invention, in the anti-slip and collapsible wrench according to the first aspect, the first tooth section has four teeth, and each one tooth has a flat contact surface having the same longitudinal length. The second tooth section has three teeth installed in the throat from the position of the spanner opening, and the vertical lengths of the flat contact surfaces of the three teeth of the second tooth section are all different. It features a non-slip and anti-squash wrench.
According to a fifth aspect of the present invention, in the anti-slip and anti-squash wrench according to the fourth aspect, the first tooth and the second tooth are sequentially arranged in such a manner that the three teeth of the second tooth section are directed from the position of the wrench into the throat. The third tooth, the length of the flat contact surface of the first tooth is the longest of the three teeth, and the length of the flat contact surface of the third tooth is the second longest. It features a wrench with anti-slip and anti-squatting features.
According to a sixth aspect of the present invention, in the anti-slip and anti-squashing spanner according to the fourth aspect, the longitudinal lengths of the flat contact surfaces of the two teeth of the second tooth section are both of the first tooth section. The anti-slip and anti-squash wrench is characterized by being larger than the flat contact surface of four teeth.
According to a seventh aspect of the present invention, in the anti-slip and collapsible anti-spanner according to the fourth aspect, when the fixing part is inserted into the throat of the spanner, the two corresponding corners on the other side of the fixing part are The anti-slip and anti-squashing spanner is characterized in that it is not in contact with the flat contact surfaces of the teeth of the first tooth and the teeth of the second tooth.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The present invention provides a kind of anti-slip and anti-squash wrench, which comprises a handle and is provided with a throat hole between a first jaw and a second jaw extended from a head at one end of the handle, A first recess is provided in the middle position of the hole, and there are first and second teeth parallel to the inner sides of the first and second jaws, and the first and second teeth are installed asymmetrically, A second recess is provided at a position connected to the throat on one side of the first tooth section, a third recess is provided at a position connected to the throat hole on one side of the second tooth section, and the second recess and the first The concave portion is connected obliquely with the first flat face, and the third concave portion and the first concave portion are connected with the inclined second flat face. As a result, when the fixing component is inserted into the spanner throat hole, three end angles on one side of the fixing component are accommodated in the first recess, the second recess, and the third recess, respectively, and the fixing component is in the first tooth section. And the second dentition are meshed and supported, and the spanner achieves the function of preventing slippage and preventing crushing.
[0008]
【Example】
The present invention provides a kind of anti-slip and anti-squash wrench, and a detailed description of embodiments of the present invention will be given below with reference to the drawings.
[0009]
As shown in FIG. 3, the present invention includes a handle 40, a head 42 is provided at one end of the handle 40, and a first jaw 43 and a second jaw 44 that are substantially equal in length to the head are extended, A throat hole 45 is formed between the first jaw 43 and the second jaw 44, and a first recess 451 is provided at a middle position of the throat hole 45.
[0010]
The inner surfaces of the first jaw 43 and the second jaw 44 are separated by a predetermined distance, and a first tooth 431 is provided on the inner surface of the first jaw 43, and the first tooth 431 has four teeth 432. Each tooth 432 includes a flat contact surface 433 having the same longitudinal length, and a second recess 452 is provided at a position connected to the throat hole 45 on one side of the first tooth 431. A second tooth section 441 is provided on the inner surface of the jaw 44.
[0011]
The second tooth section 441 includes a first tooth 442, a second tooth 443, and a third tooth 444 installed from the opening position of the spanner 10 into the throat 45, and the number of teeth of the second tooth section 441 is the first. The length of the flat contact surface 442a of the first tooth 442 is the longest of the three teeth, and the length of the flat contact surface 443a of the second tooth 443 is the vertical length. Is the shortest of the three teeth, and the vertical length of the flat contact surface 444a of the third tooth 444 is between the remaining two teeth, and the vertical length of the flat contact surface 444a of the third tooth 444 is Is longer than the flat contact surface 433 of the four teeth 432 of the first tooth section 431, and a third recess 453 is provided at a position connected to the throat 45 on one side of the third tooth 444.
[0012]
The second recess 452 and the first recess 451 are connected by a first flat face 454, and the third recess 453 and the first recess 451 are connected by a second flat face 455 obliquely.
[0013]
FIG. 4 shows a state display diagram in which the first jaw 43 and the second jaw 44 of the present invention sandwich one fixed component 50. The first corner 51, the second corner 52, and the third corner 53 of the fixing component 50 are fitted into the second recess 452, the first recess 451, and the third recess 453, respectively, and the first flat face 454 of the throat hole 45 and The second flat face 455 is in contact with the positions of the third side 503 and the fourth side 504 of the fixed component 50, and the first side 431 and the second tooth 441 are installed, whereby the first side of the fixed component 50 is obtained. 501 and the second side 502 are supported by the first tooth section 431 and the second tooth section 441, and the fourth corner 54 and the fifth corner 55 of the fixed component 50 are in flat contact with the teeth 432 of the first tooth section 431. The flat contact surface 442a of the first tooth 442 of the surface 432 and the second tooth section 441 does not contact.
[0014]
FIG. 5 shows a display diagram in a state where the present invention is turned. The first side 501 and the second side 502 of the fixed component 50 are supported by the first tooth 431 and the second tooth 441, and can be prevented from slipping when turned, and are installed in the second tooth 441. The number of teeth is relatively small, and the longitudinal lengths of the flat contact surfaces 442a and 444a of the first teeth 442 and the third teeth 444 of the second tooth 441 are all equal to the teeth 432 of the first tooth 431. Since it is larger than the contact surface 433, the tooth profile of the second tooth 441 can be set larger than the tooth profile of the first tooth 431, and in addition to the anti-slip effect, the support force of the second tooth 441 can be increased, and the spanner 40 This is advantageous for expressing torque values. Further, when the fixing component 50 is rotated by the spanner 40, in addition to the anti-slip effect, the first and second flat straight surfaces 454 and 455 contact the positions of the third side 503 and the fourth side 504 of the fixing component 50, The effect of driving the stationary component 50 is enhanced and provides a relatively high torque representation. In addition, when the fixed component 50 is turned to the spanner 40, the three corners are inserted into the respective recess positions, and the occurrence of a situation in which the corners are subjected to pressure and the corners are rounded can be prevented. Inventive and consistent with patent requirements.
[0015]
【The invention's effect】
As described above, the present invention has the following excellent points.
1. The spanner for preventing slipping and squashing of the present invention is provided with three recesses at the throat hole position of the snapper, and when the fixing means is accommodated at the throat hole position of the spanner, three of the corners are formed into the three recesses. During the operation of turning and turning the spanner, the corner of the spanner does not generate friction with the inner wall of the throat and does not collapse.
2. The spanner for preventing slippage and preventing crushing of the present invention, when rotating the fixing part with the spanner, in addition to the antislip effect, the first and second flat faces abut against the positions of the third side and the fourth side of the fixing part, The effect of driving fixed parts can be enhanced and a relatively high torque value expression can be provided.
3. The anti-slip and anti-squash wrench of the present invention is provided in which the first and second teeth of the first and second jaws are installed asymmetrically, the number of teeth of the second tooth is set relatively small, The tooth profile of the two teeth can be made larger than the tooth profile of the first teeth, and in the process of turning, in addition to the anti-slip effect, the supporting force of the second tooth can be increased, which has an advantageous effect for turning.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a diagram showing a clamped display of a known open-end spanner.
FIG. 2 is a diagram showing the operation of holding and fixing a fixed part of another known open-end spanner.
FIG. 3 is a plan view of the spanner of the present invention.
FIG. 4 is a clamp part display diagram of the spanner of the present invention.
FIG. 5 is a display diagram of an operation in which the spanner of the present invention clamps and rotates a fixed part.
[Explanation of symbols]
10 Open End Spanner 11 Handle 12 First Jaw 121 Contact Side 13 Second Jaw 131 Contact Side 14 Throat 20 Fixed Part 21 First Side Side 22 Second Side Side 23 First Angle 24 Second Angle 25 Third Angle 26 3rd side edge 27 4th side edge 30 Open end spanner 31 Handle 32 1st jaw 321 Engagement tooth 33 2nd jaw 331 Engagement tooth 34 Throat 40 Spanner 41 Handle 42 Head 43 1st jaw 431 1st tooth 432 Teeth 433 Flat contact surface 44 Second jaw 441 Second tooth 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 face 455 Second flat face 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 4th side

Claims (5)

In a non-slip and anti-squash wrench where the direction of rotation is fixed in one direction, a handle is provided, a head is provided at one end, and the first and second jaws are extended from the head, and the rotation of the handle In the direction, the first jaw is disposed upstream and the second jaw is disposed downstream, a throat hole is formed between the first jaw and the second jaw, and a first recess is formed at the middle position of the throat hole. Provided,
A first tooth section and a second tooth section parallel to the inside of the first jaw and the second jaw are provided, respectively, and the first tooth section is oriented in a direction in which each faces the throat from the opening position of the spanner. A plurality of teeth with a flat abutment surface, each of which has a longitudinal length in which each of the second teeth is oriented toward the throat from the opening position of the spanner. A plurality of teeth with contact surfaces, the tooth profile of the second tooth is larger than the tooth profile of the first tooth, and the number of teeth of the second tooth is greater than the number of teeth of the first tooth And the vertical length of the flat contact surface of the predetermined tooth of the second tooth is longer than the vertical length of the flat contact surface of the tooth of the first tooth. 2 teeth are installed asymmetrically,
A second recess is provided at a position connected to the throat on one side of the first tooth section, a third recess is provided at a position connected to the throat hole on one side of the second tooth section, and the second recess And the third recess are connected by an oblique first flat face, and the third recess and the first recess are connected by an oblique second flat face,
As a result, when the fixed part is inserted into the throat of the spanner, the three corners on one side of the fixed part are fitted into the first concave part, the second concave part, and the third concave part, respectively, and the first and second flat parts The face is in contact with both sides of the three corners of the fixed part, and the fixed part is supported and bitten by the first and second tooth sections, so that the spanner achieves the function of preventing slipping and squashing. , Anti-slip and anti-squatting wrench.   The anti-slip and anti-squash wrench according to claim 1, wherein the first tooth section has four teeth, the flat contact surface of each tooth has the same longitudinal length, and the second tooth section has the spanner. Anti-slip and corner, comprising three teeth placed from the opening position into the throat, and the flat contact surfaces of the three teeth of the second tooth section having different longitudinal lengths Spanner for preventing crushing.   In the anti-slip and anti-squash wrench according to claim 2, the three teeth of the second tooth section are sequentially set as the first tooth, the second tooth, and the third tooth from the spanner opening position toward the inside of the throat. The longitudinal 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 to prevent crushing.   3. The anti-slip and anti-squash wrench according to claim 2, wherein the flat contact surfaces of the two teeth of the second tooth section each have a longitudinal length of the four teeth of the first tooth section. An anti-slip and anti-collapse wrench characterized by being larger than the surface. The anti-slip and anti-squash wrench according to claim 1, wherein the first and second teeth inside the first jaw and the second jaw have a fixed part inserted into the throat of the spanner. The part facing the two opposite opposite corners on the side opposite to the one side of the fixed part is a configuration that is not a flat contact surface of the teeth of the first teeth and the teeth of the second teeth,
A spanner for preventing slippage and preventing crushing, wherein the flat contact surfaces of the teeth of the first tooth section and the teeth of the second tooth section are not in contact with the opposite side corners of the fixed part.

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