TWI241940B - Improved rotation structure of wrench - Google Patents

Abstract

The present invention provides an improved rotation structure of a wrench (2), which mainly includes a first jaw annularly installed on a protrusion side of the wrench head, in which the protrusion is housed between the first and second protrusion ears of the wrench handle, and a pivotal bar is installed so that the wrench head and the wrench handle form a pivotal relationship. A positioning bar in a first housing groove of the wrench handle is pressed so that the positioning bar presses on an adjustment bar in a second housing groove, so that a second jaw on the front end of the adjustment bar forms a temporary detachment from the first jaw of the protrusion, for the convenience of bending and angle adjustment of the wrench head. Next, the positioning bar is released so that the adjustment bar is returned to its original position under the action of the front and rear springs, thereby achieving the effect of fastening the wrench head after bending and angle adjustment. Thus, the invented improved rotation structure of wrench (2) has industrial applications.

Description

1241940 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to an improvement of the rotation structure of a wrench (2), which mainly uses a wrench handle, a positioning lever, a top lever, and an adjustment lever, and the adjustment lever The tooth part lifts the tooth part of the wrench head upwards. When the positioning lever is pressed, the positioning lever pushes the second tooth part downward to reach the adjustable wrench head, which belongs to the development field of wrench tool improvement technology. [Previous technology] According to the current development of the domestic hand tool industry, the types of products researched and developed by the domestic hand tool industry are quite diverse. The quality of hand tools produced in the country has won excellent reputation at home and abroad. However, when it comes to the use of wrench tools in the industry, when it is used in a narrow space, it is often unable to effectively clamp the screw firmware, which not only affects the work progress but also affects the smoothness of the work. Therefore, the use of the wrench tool is not only time-consuming and laborious; In view of this, there are inventions commonly used in the industry. Please refer to the attachment (Announcement No. 5 8 5 8 7 "Structure of the movable swing wrench"). Please refer to the fifth figure in the attachment, which is mainly driven by a The head and a pivot are arranged on the driving head grip, and a latching mechanism is provided in the grip. The latching mechanism can selectively limit the relative pivoting between the driving head and the grip, and the pivot of the driving head The part includes a first jaw and a second jaw. The outer edge of the first jaw is provided with teeth. The positions of the teeth are located at the end of the wrench. The round fox face of the second outer edge is full meat. It is thick and the arc surface is higher than the root of the tooth. When the wrench is operated, it will not cause cracks or damage.

Page 5 1241940 V. Description of the invention (2) A button and a card block, which are set in the hole of the handle and can be displaced relative to the handle. The card block is set in the card hole of the handle. The first end of the button is provided with teeth, and the second end is exposed from the card hole. In addition, the button is provided with a first surface and a second surface recessed at an appropriate position with respect to the card hole. The height is different, and there is a drop, which can be used to selectively abut the second end of the block. In summary, the present inventors found the following disadvantages to the conventional wrench structure: 1. The pivot part of the driving head of the wrench is provided with a first jaw and a second jaw.

The second jaw is set as a tooth part, and it will be easier to attach in the tooth space or get into smaller screws or iron filings, which makes it difficult for the tooth part at the end of the block to effectively stop the pivot of the driving head, which directly affects It is stable to the bending of the wrench. 2. In addition, one end of the clamping block is provided with a tooth portion. The tooth portion is formed by two oblique cut planes (arranged in a V shape). When the teeth of one jaw are engaged, because the engagement surface of the teeth at the end of the block is small, if the user applies force to the wrench, the teeth of the first jaw outer edge of the head of the driving head are easy to slip and slip. And affect the smoothness of work;

3. Moreover, because the pivot of the driving head only uses the first jaw teeth and the clamping block to push each other to form a force point, so when the wrench is applied, the force point will be uneven, and only a single force will be formed. It is quite inconvenient to stop the structure to bear a large force, which will cause the structure to be damaged or broken. Based on the above shortcomings, as a whole, it can be said that it is not practical and it is necessary to improve it. [Summary of the Invention] This creation is mainly related to the improvement of the rotation structure of a wrench (2)

Page 6 1241940 V. Description of the invention (3) The improvement of the rotation structure of this wrench (2) mainly includes: A wrench body 'The wrench system is pivotally connected by a wrench head and a wrench handle A first jaw tooth is provided on a side of a convex part of one end of the wrench head, and the convex part can be accommodated between the first and second lugs of the wrench handle, and the first and second A relative pivot hole is provided at the relative position of the lug, which can pass a pivot rod through the pivot hole and the convex part, so that the wrench head and the wrench grip have a pivoting relationship, and the first lug is below and obliquely A first accommodating slot is provided, and the positioning rod in the first accommodating slot can be linked to control the latching device in the second accommodating slot below the second lug, so that the second jaw tooth of the front end of the adjusting rod of the latching device and The first jaw tooth of the convex part is temporarily separated, so that the wrench head can be freely bent and adjusted. After releasing the positioning lever, the spring of the locking device can be used to spring against the adjustment lever, so that the front end of the adjustment lever The second jaw tooth engages the first jaw tooth of the convex part again to achieve the positioning effect of the bending angle of the wrench head. In order for the reviewing committee to get a better understanding of this creative installation, the following will summarize and discuss the effects of this creative: 1. The first jaw teeth of its wrench head are arranged at the center of the two lugs of the handle. The connection is not like the conventional design. It is set on one side of the handle, so it can effectively prevent other metal tools (such as iron filings or small screw fasteners) from getting stuck in the teeth, which will affect the fixed bending head. Stability; 2, and the second jaw tooth engagement surface created by the present invention is relatively large (formed by a polygonal cutting plane). When the second jaw tooth is restrained on the first jaw tooth, more engagement surfaces can be obtained. To increase its own stability, to improve the lack of engaging surfaces of the teeth at the ends of the handles of conventional handles, and to avoid slipping easily

1241940 V. Description of the invention (4) Occurrence; 3) Also, the top jaw surface of the first jaw tooth and the second jaw tooth created by the present invention is the center of gravity of the wrench, so that the force application point can evenly fall within its grip. The purpose is to improve the conventional wrench to concentrate the bending point on one side, and avoid the situation that the user is prone to break or fall off when the force is applied in a single direction, and it can also effectively prevent personnel from being injured. In summary, it can be seen that the rotation structure of the wrench (2) is improved, which improves the lack of various conventional wrenches, and enhances the stability and practical effect. This is a progressive patent. [Implementation] This creation is mainly related to the improvement of the rotating structure of a wrench (2) structure. Please refer to the first and second figures. The improvement of the rotating structure of the wrench (2) mainly includes: A wrench body (1) refers to a connection between a wrench head (1 0) and a wrench handle (2 0), wherein one end of the wrench head (1 0) is a circular arc protrusion ( 1 1), one side of the convex part (1 1) is provided with a first jaw tooth (101); a wrench handle (20)-one end is provided with first and second lugs (2 1, 22), A communicating pivot hole (2 3) is penetrated at the relative position of the first lug (21) and the second lug (22), so that the pivot lever (2 4) is provided with a seasonal wrench head (1 0). It is pivotally connected with the wrench handle (20), and a first receiving groove (25) is provided at an appropriate position below the first lug (21) for receiving a positioning rod (26), and A positioning rod (2 6) accommodated in the first receiving groove (2 5)-the side end is slightly exposed

Page 8 1241940 V. Description of the invention (5) Outside the grip of the wrench (2 0); In addition, the appearance is a π-mute π-shaped positioning rod (2 6), where a sliding groove ( 2 6 1), the chute (2 6 1) can be inserted into the positioning pin (2 6 2) which is to be set in the handle of the wrench (2 0), so as to prevent the positioning rod (2 6) from coming off the first The accommodating groove (2 5), and at the same time, the sliding groove (2 6 1) and the positioning pin (2 6 2) can be used together, so that the positioning rod (26) can be used in the first accommodating groove (25) The inner movement adjusts and moves; and, a second receiving groove (27) is slantedly penetrated at an appropriate place below the second lug (2 2), and the second receiving groove (27) and the first receiving groove ( 2 5) is in a connected relationship, and the second accommodating groove (2 7) is mainly used for accommodating an adjusting rod (28) and a spring (2 9) against the device, and finally, a cover ( 30) The second receiving groove (2 7) is screw-closed to fix the fixing effect of the Dhaka abutment device; the adjusting rod (2 8) is a circular rod body, which is elastically abutted by a spring (2 9) at the rear end Push to make the second jaw (28 1) at the front end of the adjusting lever (2 8) and the lever The first jaw teeth (10 1) of the head (10) are in a meshing relationship, and at the same time, the top stop groove (282) formed by the side of the adjusting rod (2 8) is just inside the first receiving groove (2 5). The positioning rod (26) abuts against each other, and the positioning rod (2 6) is pressed to form a control adjustment lever (2 8) to disengage, so that the second jaw tooth (28 1) at the front end of the adjustment rod (28) is separated from the first jaw. The teeth (1 0 1) make the wrench head (1 0) appear free at all times, and the wrench head (1 0) can be bent, and when it releases the positioning rod (2 6), it can Make the adjustment lever (2 8)

Page 9 1241940 V. Description of the invention (6) The elastic jaw restoration characteristic of the spring (29) can be used to make the first jaw tooth (1 0 1) press the second jaw tooth (2 8 1) again, so that the wrench head ( 1 0) produces a fixed effect at any angle; please refer to the third and fourth figures, this is an action diagram created by the present invention, which is characterized in that when the positioning lever (2 6) is pressed, the positioning lever (2 6) ) Will push down the adjustment lever (2 8) (the top stop point is the connection between the positioning lever (2 6) and the top stop groove (282)), so that the second jaw tooth (281) is separated from the first jaw tooth (1 0 1 ) Create a movable space, so that the wrench head (1 0) is temporarily in a free state, so that the wrench head (1 0) can be flexibly adjusted; otherwise, please refer to the fifth and sixth figures. When the positioning lever (2 6), the adjustment lever (2 8) of the positioning lever (2 8) will return to the original position due to the restoring force of the lower spring (29), and the second jaw (2 81) will be pushed upward. On the first jaw tooth (101), it has the effect of stable position, and because the first jaw tooth (101) and the second jaw tooth (281) are engaged with each other, there are two lugs (2 1, 22) of the wrench grip (20). ) In the middle, and when the wrench is pushed, the force can be supported by the two lugs (21, 22) of the wrench handle (20), to achieve a more stable purpose, and avoid the easier Slipping and breaking happened. In addition, the present invention can create another embodiment. Please refer to FIG. 7 and FIG. 8, which is characterized in that a pivot hole (3 1) is provided at an appropriate position of the wrench handle (20) for adjustment. The element (3 2) is provided for its setting, and one end of the adjusting element (3 2) can be accommodated in the top groove (282) on the adjusting rod (28). Therefore, please refer to the ninth and tenth drawings. Push adjustment

Page 10 1241940 V. Description of the invention (7) The element (3 2), because one end of the adjusting element (3 2) matches the top groove (2 8 2) of the adjusting lever (2 8), the adjusting lever is now adjusted. (2 8) will push the compression spring (29) downwards to make the second jaw tooth (28 1) leave the first jaw tooth (1 0 1) to form a movable space, and let the wrench head (1 0 ) To achieve the purpose of movable bending, on the contrary, please refer to Figures 11 and 12, when the adjustment element (3 2) is loosened, the adjustment element (3 2) will be affected by the return force of the spring (2 9). Pressing and returning to the original position, the second jaw tooth (2 8 1) is pushed upward on the first jaw tooth (10 1) to reach a stable original state, and because the adjustment element (3 2) is set on the wrench The front side of the handle (10) makes it easy for users to operate and use, which is a very good invention. In summary, the rotation structure improvement (2) of the creative wrench is practically and cost-effectively in line with the needs of industrial development, and the disclosed structural creation also has an unprecedented innovative structure, so It should have no doubt that it is "novelty", and that this creation can be more effective than the conventional structure, so it is also "progressive". It fully complies with the requirements of China's patent law on the application requirements for invention patents, and is in accordance with law. File a patent application and kindly ask the Bureau to review it early and give it affirmation.

Page 11 1241940 Brief description of the drawings The first picture The schematic diagram of the improvement of the rotating structure (2) of the creative wrench. The second picture shows the improvement of the rotation structure of the creative wrench (2). The unraveling schematic diagram. The third and fourth pictures are the bending action diagrams of the improvement of the rotation structure (2) of the creative wrench. The fifth and sixth pictures are the improvement of the rotating structure of the original wrench (two) schematic diagram of the head fixing. The seventh figure is a schematic diagram of the external appearance of another embodiment of the improvement of the rotating structure (two) of the original wrench.

The eighth figure is a schematic diagram of another embodiment of the improvement of the rotating structure (two) of the original wrench. The ninth and tenth diagrams are bending operation diagrams of another embodiment of the improvement of the rotation structure (2) of the original wrench. The eleventh and twelfth pictures are schematic diagrams of head fixation in another embodiment of the improved rotation structure (two) of the creator. [Illustration of symbolic symbols: body head 1 jaw tooth grip handle lug 2 2 accommodating slot 2 1 --- convex part 2 --- second lug 4 --- pivot 6-one-one positioning lever

1 ----- wrench 1 0 —one one one wrench first 2 0 ---- wrench 2 1-— one one first 2 3 — _ one one area 孑 Li 2 5 ---- first

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Claims (1)

1241940 VI. Scope of patent application 1. An improvement of the rotation structure of a wrench (2), mainly including: a wrench body, the handle of the wrench body is at least pivotally connected to a head, and a protrusion is formed at one end of the head, A first jaw tooth is provided on the ring on one side of the part; a wrench grip is provided with first and second lugs, and opposite frame holes are provided at appropriate places of the lugs 'the light hole can accommodate a plum rod' To measure the pole, the wrench head and the wrench handle have a pivoting relationship, which is characterized in that: the wrench handle is provided with a first receiving groove obliquely, and a content of a positioning rod is provided in the first receiving groove. The lever can be fixed by the positioning pin inserted on the wrench handle. After pressing the positioning lever, it can be connected with the latching device in the second receiving slot of the wrench handle to make the latching device and the convex part The first jaw tooth is disengaged and adjusted by the bending angle of the wrench head. After the positioning rod is released, the latching device and the convex part are engaged with each other, which achieves the fixing effect of the wrench head. 2. As shown in item 1 of the scope of patent application, the rotation structure of the wrench is improved (2), in which the first jaw teeth of the wrench head can be provided on either side of the convex part. 3. As shown in item 1 of the scope of patent application, the rotation structure of the wrench is improved (2), in which the positioning rod is embedded in the handle of the wrench and the positioning pin is mutually matched to form an adjustable relationship. 4. The rotation structure of the wrench is improved as described in item 1 of the scope of patent application (2), wherein one end of the adjusting rod is a second jaw tooth with a sawtooth surface. 5. If the rotation structure of the wrench described in item 1 of the scope of patent application is improved (2), the cover body can be provided with screw threads. 6. The rotation structure of the wrench described in item 1 of the scope of patent application is improved (2), wherein an adjustment element is provided on one side of the handle of the wrench to form a movable relationship with the second jaw tooth of the adjustment lever. Page 14