TWM456257U - Open wrench having anti-skid effect - Google Patents

Description

Open-ended wrench with anti-slip

This creation relates to an open end wrench, especially an open end wrench with a non-slip design.

According to the common open-end wrench, one end or two opposite ends thereof are provided with an open mouth, and the opening is used to turn bolts and nuts (Bolt & Nut) and various similar fixing buckles. a workpiece such as a piece of work, and according to the size specifications of the work pieces, respectively, a wrench of different sizes, and the wrench includes, but is not limited to, a single open end wrench, a double open end wrench, a wrench, a spanner wrench, and a tube. Pliers wrenches, compound wrenches, etc.

Upon investigation, the applicant company of the case developed and applied for approval: the structural improvement of the open-end wrench (national patent certificate number: M414298) patent case, which includes a wrench and has the first corresponding to each other in the mouth of the mouth. a first clamping portion and a second clamping portion are disposed on a side of the first jaw portion, and a third locking portion and a fourth locking portion are disposed on a side of the second jaw portion. However, when the biasing bolt of the conventional wrench structure is applied, the four adjacent sides of the bolt are not completely contacted, and the stress is dispersed, and it is easy to be abutted against the second clamping portion due to the wear of the bolt, thereby damaging the pair of bolts. Corner, there is a need for further improvement.

In view of this, the creator of this case has been actively researching and improving with many years of experience in the manufacture and design of hand tools, and has completed the production and testing of many physical samples. creation.

The present invention provides an open-end wrench with anti-slip, and the main problem to be solved is to solve the problem of the stress dispersion of the conventional wrench, and to improve and improve the work efficiency, and to effectively increase the structural strength of the wrench. And torque performance, as well as achieving a slip-proof anti-off effect.

The open end wrench of the present invention includes a wrench, wherein at least one end portion has a first jaw portion and a second jaw portion corresponding to each other, and a slit is formed on the inner side of the first jaw portion. a first clamping portion, a second clamping portion and a second recessed portion, and a third clamping portion, a fourth clamping portion and a second clamping portion are disposed on the inner side of the second portion a first recessed portion of the tip end; wherein the second locking portion is convexly curved and disposed at a bottom end of the first crotch portion to be combined with the first clamping portion, the third clamping portion, and the fourth portion The locking portions respectively abut against the four adjacent sides of the working object, and when the force is applied, the clamping portions are pressed against the side of the working object to prevent the working object from slipping, and the contact area is increased to relieve the stress. And increasing the torsion; the first inner portion and the second inner portion are respectively provided with a first groove and a second groove for evading the end angle of the working object, and the second clamping portion and the second A third recess for evading the working object is disposed between the four clamping portions. When the wrench is turned clockwise to operate the working object, the second clamping portion and the fourth clamping portion are caused to be in close contact with the side of the working object, and the first locking portion and the third locking portion can respectively It can resist the maximum misalignment of the opposite sides of the working object, and further increase the rotational torque and the contact force of the contact point when the turning operation is performed, thereby making the operation more labor-saving and effectively preventing the slippage. effect.

When the creative wrench is reversed, the two diagonals of the working object will be evaded separately The first concave portion and the second concave portion are inserted, so that the respective locking portions of the wrench are idly reset, thereby providing the wrench with the function of operating the one-way continuous turning function, but not easily causing the slippage of the working object. Moreover, it has more operational safety performance, and can achieve the maximum key technical means for locking the working object without pulling out the wrench, and making the operation more convenient, and has the expected practical benefit.

In the following, the specific embodiments of the drawings will be described in detail, and the structure, function, and expected effects of the various elements of the present invention will be described in detail.

10‧‧‧Wrench

123‧‧‧Fourth Carding Department

11‧‧‧ First Department

111‧‧‧First Carding Department

112A, 112B‧‧‧Second Carding Department

113‧‧‧Second recess

12‧‧‧ Second Ministry

121‧‧‧First recess

122‧‧‧ Third Carding Department

13‧‧‧颚口

14‧‧‧First groove

15‧‧‧second groove

16‧‧‧ third groove

20‧‧‧Working objects

Θ‧‧‧ angle

Fig. 1 is a schematic view showing a three-dimensional structure of a mouth portion of the first embodiment of the present invention.

Fig. 2 is a schematic view of the plane structure of Fig. 1 showing the state in which the workpiece is placed.

Fig. 3 is a schematic view showing the planar structure of Fig. 2, which shows the state in which each of the locking portions locks the top work object.

Fig. 4 is a partially enlarged schematic view showing a portion "A" according to Fig. 3.

Fig. 5 is a plan view showing the planar structure of the second embodiment of the present invention, which shows the state in which each of the locking portions locks the top work object.

Fig. 6 is a partially enlarged schematic view showing a portion "B" according to Fig. 5.

Figure 7 is a plan view showing the planar structure of the third embodiment of the present invention, which shows the state in which each of the locking portions locks the top work object.

Fig. 8 is a partially enlarged schematic view showing a portion "C" according to Fig. 7.

Figure 9 is a plan view showing the planar structure of the fourth embodiment of the present invention, which shows the state in which each of the locking portions locks the top work object.

Fig. 10 is a partially enlarged schematic view showing a portion "D" according to Fig. 9.

The above-mentioned creative objects and advantages of the present invention are not difficult to understand from the detailed description of the selected embodiments and the accompanying drawings.

First, as shown in FIG. 1 to FIG. 4, the first embodiment of the open-end wrench with a slip-proof function includes a wrench 10, wherein at least one end portion has a first crotch portion corresponding to each other. 11 and the second jaw portion 12 are formed together with a mouth 13 , and a first locking portion 111 , a second locking portion 112A and a concave second recess portion 113 are disposed inside the first jaw portion 11 . A third clamping portion 122, a fourth locking portion 123 and a first recess portion 121 disposed at the tip end of the second jaw portion 12 are disposed on the inner side of the second jaw portion 12; wherein: the second locking portion 112A And the first clamping portion 111, the third clamping portion 122 and the fourth locking portion 123 respectively abut against the working object. The workpieces 20 are rotated by corresponding clamping, and when the wrench 10 is turned clockwise, the clamping portions are abutted against the side of the workpiece 20 to prevent the workpiece 20 from slipping. At the same time, the contact area is increased to relieve the stress and increase the torque. In addition, the second clamping portion 112A can also lick the worn work object 20俾 avoiding the working object 20 from damaging the diagonal of the bolt; each of the locking portions has a non-relative angle with each other, in other words, the first locking portion 111 and the third locking portion 122 are non-parallel with each other, and the first The angle θ between the three clamping portions 122 and the fourth clamping portion 123 is ≧120°, and the tips of the first jaw portion 11 and the second jaw portion 12 are outwardly offset by a specific angle, so that the width of the mouthpiece 13 is further increased. The working piece 20 is more easily accessed into the mouth 13; the first side 11 and the second side 12 are respectively provided with a symmetrical inner side. The first recess 14 and the second recess 15 of the working object 20 are evaded, and a third recess is formed between the second engaging portion 112A and the fourth engaging portion to evade the working object 20. The groove 16; in particular, each of the grooves is not limited to an arc shape, and only the end angle of the workpiece 20 needs to be avoided.

With regard to the actual operation of the open-end wrench with the anti-slip, the structure of the above-mentioned various locking portions can be defined as the wrench 10 can fix the working object 20 when the working object 20 is rotated, and can generate Torque action, the work article 20 in this embodiment is a bolt. When the working object 20 enters the mouth 13 , because the first locking portion 111 and the third locking portion 122 are not parallel to each other, the maximum offset of the working object 20 is pressed against the opposite side. And contacting the first clamping portion 111 and the third clamping portion 122 against the side edge of the plane (as shown in FIG. 2), and continuing the wrench 10 to rotate a certain angle clockwise, at this time, the two The side edges of the workpieces 20 are slid along opposite sides of the workpiece 20, and the first recesses 121 and the second recesses 113 provide sufficient space for the workpieces 20 to rotate within the pockets 13, thereby causing the second locking portion 112A and the The abutting plane of the fourth engaging portion 123 completely contacts the two adjacent sides of the working object 20, and the abutting planes of the first engaging portion 111 and the third engaging portion 122 also completely abut against the side of the working object 20. The maximum offset between the two opposite sides (as shown in Figure 3), when the implementation of the turning operation, can more effectively increase the rotational torque and the contact point of the force couple, thereby making the operation more labor-saving and effectively prevent the slip-off locking effect .

When the creative wrench 10 is reversely rotated, the two opposite corners of the working object 20 are respectively evaded into the first recessed portion 121 and the second recessed portion 113, so that the respective locking portions of the wrench 10 are idly reset, thereby providing the wrench 10 The utility model has the function of operating the one-way continuous turning function, but does not easily cause the locking effect of the slippage on the working object 20, and has more operational safety performance, so that the working object 20 can be locked without pulling out the wrench. And the biggest key technology hand to make the operation more convenient Paragraphs, with very expected practical benefits.

Continuing to refer to FIG. 5 and FIG. 6, which is a second embodiment of the open-end wrench of the present invention, which is mainly different from the first embodiment, the second engaging portion 112B is serrated.

Continuing to refer to FIGS. 7 and 8, which is a third embodiment of the open-end wrench of the present invention, the main difference from the first embodiment is that the second engaging portion 112C is wavy.

Continuing to refer to FIG. 9 and FIG. 10, which is a fourth embodiment of the open-end wrench of the present invention, which is mainly different from the first embodiment in that the second engaging portion 112D is in an embossed plane. shape.

In another embodiment of the present invention, the fourth clamping portion 123 can be convex, serrated, wavy or embossed, and can effectively increase the rotational torque and the contact point when the turning operation is performed. The force couple acts to make the operation more labor-saving and effectively prevent the locking effect of slippage.

Therefore, the technical scope of the present invention is not limited to the above-described embodiments, and various changes can be added to make it more suitable for a wide range of wrench work requirements without departing from the scope of the present invention.

In summary, from the above detailed description, it will be apparent to those skilled in the art that the present invention can achieve the foregoing objectives, and it has been verified that the creation has novel and progressive nature, and has been in compliance with the provisions of the Patent Law, and has filed a patent application.

10‧‧‧Wrench

11‧‧‧ First Department

111‧‧‧First Carding Department

112A‧‧‧Second Carding Department

113‧‧‧Second recess

12‧‧‧ Second Ministry

121‧‧‧First recess

122‧‧‧ Third Carding Department

123‧‧‧Fourth Carding Department

13‧‧‧颚口

14‧‧‧First groove

15‧‧‧second groove

16‧‧‧ third groove

Claims (10)

An open-ended wrench with a non-slip, comprising: a wrench, wherein at least one end portion has a first jaw portion and a second jaw portion corresponding to each other to form a mouthpiece, wherein: the first jaw a first clamping portion is disposed on the inner side of the portion, and a second locking portion is disposed on the bottom end portion, and a third locking portion, a fourth locking portion and a second clamping portion are disposed on the inner side of the second portion a first concave portion of the tip end; wherein each of the locking portions has a non-relative angle with respect to each other, so that each of the locking portions respectively abuts on four adjacent sides of a workpiece to be clamped The side of the work object. The open end wrench with non-slip prevention according to the first aspect of the invention, wherein the inner side of the first crotch portion is further provided with a recessed second recess. The open-end wrench with non-slip prevention according to the first aspect of the invention, wherein the first inner portion and the second inner portion are respectively provided with a first recess for evading the end angle of the working object and The second groove is disposed between the second clamping portion and the fourth clamping portion to evade the third groove of the working object end angle. The anti-slip open end wrench according to the first aspect of the invention, wherein the third clamping portion and the fourth clamping portion are at an angle of 120°. The open-end wrench with non-slip prevention according to the first aspect of the invention, wherein the second clamping portion has a convex arc shape. The open end wrench with non-slip prevention according to the first aspect of the invention, wherein the second clamping portion is in a zigzag shape. The open end wrench with non-slip prevention according to the first aspect of the invention, wherein the second clamping portion has a wave shape. The open end wrench with non-slip prevention according to the first aspect of the invention, wherein the second clamping portion has an embossed flat shape. The open end wrench with non-slip prevention according to the first aspect of the invention, wherein the fourth clamping portion has a convex arc shape. The open-end wrench with non-slip prevention according to the first aspect of the invention, wherein the fourth clamping portion is in a zigzag shape.