TWI530365B - Ratchet wrench structure improvement - Google Patents

Description

Ratchet wrench structure improvement

The invention relates to a structural improvement of a ratchet wrench, in particular to a ratchet wrench in the field of hand tools for disassembling and assembling screws (nuts), the main feature of which can provide a simple assembly method without affecting the operation during assembly. The smoothness of the invention is extremely practical.

Among the many hand tools, the ratchet wrench is one of the applications that are often used by users. The general ratchet wrench is used to install the sleeve and further disassemble and assemble the screw (nut) on the object. purpose. The general ratchet wrench has two types of positive rotation and reverse rotation, which mainly controls the swing of the ratchet wrench according to the screw or nut required to be screwed or loosened, and is installed in one end of the ratchet wrench. The cooperation between the components drives the screw (nut) to rotate. However, in the process of manufacturing, assembling or repairing the ratchet wrench, sometimes the size of each part is too small, resulting in assembly and maintenance. Certain difficulties, in addition to the possibility that the components may not be able to securely fit together, so the user must carefully and carefully align and assemble the parts, but it increases the working time, so it is related. The industry must find out how to improve the lack of assembly and maintenance of the general ratchet wrench.

For the component assembly in the ratchet wrench, please refer to the Republic of China. Announcement No. M479188 "Improvement of the drive head structure of the ratchet wrench" is provided on the inner side of the drive head of the ratchet wrench to provide a D head for locking the object, and the extension column above the D head is provided with a turnable sleeve Rotating the disc, the rotating disc is provided with a circular groove at the center, and the rotating disc forms an annular step at the bottom of the circular groove, and the extending post of the D head is provided with a ring groove on the outer peripheral wall thereof, and the annular groove The buckle is provided with a buckle, and the buckle protrudes from the outer peripheral wall of the extension post, and the buckle is disposed above the annular step surface, so that the rotating disc can be limited to the buckle Between the D head and the D head, the rotating disc has the advantage that it is not easy to loose and is easy to rotate.

Although the above-mentioned ratchet wrench provides a quick installation of the buckle by the circular groove provided by the rotating disk, the assembly between the buckle and the scroll spring does not provide a stable installation, although the setting of the control rod can provide a vortex The position of the spring is limited, but it is easy to cause a slight displacement of the scroll spring when it is under pressure. In addition, the circular groove provided on the rotating disk is too narrow to cause the buckle to be in the ring groove with the extension column. The fastening between the two increases the difficulty and even affects the collision between the buckle and the rotating disk. Therefore, the relevant industry must carefully consider how to improve in order to meet the public's use.

In view of the above situation, the inventors invested a lot of time to study the relevant knowledge, and compared the advantages and disadvantages and practicability of each ratchet wrench, carried out research and development of related products, and after many experiments and tests, finally launched a "ratchet" The improved wrench structure improves the above-mentioned lack to meet the needs of the public.

The main purpose of the present invention is to provide a user with a simpler and more convenient assembly, without affecting the smoothness of the operation of the ratchet wrench, thereby improving The above-mentioned conventional ratchet wrench has the disadvantages and the problems of the "improvement of the drive head structure of the ratchet wrench". To this end, the inventors have endeavored to achieve the purpose and effect of the foregoing creation, that is, a ratchet wrench structure improvement, comprising: a handle having a through hole at one end thereof and a ratchet row on the wall ring of the set of holes a driving assembly having a main firmware, a ratchet block, a core-shaped spring and a control rod, the main firmware is mounted at one end of the group hole, and one end of the main firmware extends with an engaging post and the other end extends The assembly block is further provided with an assembly portion between the joint column and the assembly block, and a positioning bead is embedded in the handle, and the ratchet block is installed in the assembly portion. And one side of the ratchet row corresponding to the group hole of the spine block is further provided with an intermeshing rod row, and the heart spring is sleeved on one end of the main firmware provided with the engaging post, the heart type spring corresponding to one end of the ratchet block A fitting portion is inserted downwardly to engage the ratchet block, and the control rod is inserted and assembled from one end of the main firmware provided with the connecting block and penetrates to the engaging post, and the control rod is recessed with a groove corresponding to one end of the positioning bead a turn control panel, Mounted on the other end of the group hole, the transfer tray is concavely disposed with a circular groove at a central position, and an ellipsoid is formed on the bottom surface of the circular groove corresponding to the joint column of the main firmware, and the bottom surface of the transfer control disk corresponds to the heart spring. The tip end portion is provided with a steering column penetrating the tip end portion; a fixing assembly having a nut, a spring and a control disc member, the nut is located in the circular groove of the transfer disc and is coupled with the main firmware Locking, the bottom surface of the nut is attached to the groove surface of the circular groove, and a limit ring is protruded from the top surface of the nut, and one end of the spring is sleeved on the limit ring of the nut and is screwed to the screw The cap is further disposed at the other end of the spring and is displaced in the circular groove, and a screw lock member is disposed through the central position of the control disc member and locked to the control rod; wherein, through the displacement of the control disc member Compress and release the spring force, Furthermore, the displacement of the control rod is further manipulated, and the displacement of the positioning bead in the assembly portion is provided, and the design of the nut can provide a complicated assembly of the spring and can be reduced in assembly, thereby reducing the complicated procedure of positioning on the assembly.

According to a further additional feature of the present invention, the groove of the control rod further has a first limiting groove portion and a second limiting groove portion on the bottom surface of the groove, wherein the groove depth of the first limiting groove portion is deeper than the second limiting groove portion When the positioning bead is displaced by the control rod, it is trapped in the assembly portion corresponding to the first limiting groove portion, and is partially exposed outside the assembly portion when the positioning bead corresponds to the second limiting groove portion.

According to a further additional feature of the present invention, the steering column and the transfer panel may be integrally formed, or the steering column may be inserted into the bottom surface of the transfer tray.

According to a further additional feature of the present invention, the cross-sectional area of the circular groove of the transfer disk and the cross-sectional area of the nut are larger than the hole area of the ellipsoid.

According to a further additional feature of the present invention, the corresponding side of the main assembly is further provided with a groove portion, and the depth of the assembly portion is greater than the depth of the groove portion, and the transfer tray The steering column is inserted into the tip end of the heart spring and displaced in the groove step. The displacement of the steering column drives the swing of the heart spring, and further controls the meshing of the ratchet block and the ratchet row in the group hole. .

In view of the above descriptions of the various techniques of the present invention, the advantage is that the user can further cooperate with the design of the circular groove and the ellipsoid of the control disk, and further cooperate with the limit ring of the nut on one side of the corresponding control member. And the arrangement of the bottom surface of the circular groove allows the user to assemble the nut and the ellipse without being locked together, thereby greatly reducing assembly difficulty and inconvenience, and more Keep the spring steady The action of compression and release enables the ratchet wrench to effectively control the sleeve to disassemble and assemble the screw (nut).

1‧‧‧Handle

11‧‧‧ group holes

12‧‧‧ ratchet row

2‧‧‧Drive components

21‧‧‧Main firmware

211‧‧‧ joint column

212‧‧‧Group block

213‧‧‧Assembly Department

214‧‧‧Slots

22‧‧‧thorn

221‧‧‧ rodent row

23‧‧‧Heart spring

231‧‧‧Mate

24‧‧‧Control lever

241‧‧‧ Groove

2411‧‧‧First slot

2412‧‧‧Second slot

3‧‧‧ positioning beads

4‧‧‧Transfer

41‧‧‧ round slot

42‧‧‧Elliptical hole

5‧‧‧Control column

6‧‧‧Fixed components

61‧‧‧ nuts

611‧‧‧ Limit ring

62‧‧‧ Spring

63‧‧‧Controls

7‧‧‧ Screw locks

The first figure is an exploded perspective view of the present invention.

The second figure is a schematic cross-sectional view of the control panel of the present invention that has not yet compressed the spring, and the control rod has not been actuated to expose a portion of the positioning bead to the outside of the assembly portion.

The third figure is a schematic cross-sectional view of the control disk of the present invention compressing the spring, and the control rod is displaced downward to displace the positioning bead into the groove.

In order to clearly illustrate the above objects and effects of the present invention, it is related to a structural improvement of a ratchet wrench, and the techniques, means and achievable effects thereof are described in detail with reference to the drawings. Later. In order to illustrate the preferred embodiment, and not to limit the invention in any way, please refer to the first to third figures, which is a structural improvement of a ratchet wrench, comprising: a handle 1, which One end of the circular flat shape and a through hole 11 is formed, and a ratchet row 12 is disposed on the wall of the hole of the set of holes 11; a driving assembly 2 having a main firmware 21 disposed in the group hole 11 and a The semi-circular flat block 22, a core-shaped spring 23 and a cylindrical control rod 24 are mounted on one end of the group hole 11 and one end of the main firmware 21 is extended with a joint post 211 exposed to the group. The hole 11 has a plurality of blocks 212 extending from the group hole 11 at the other end, and an assembly portion 213 is disposed between the joint post 211 and the block block 212 on the one side of the main firmware 21 A positioning bead 3 is embedded in the side of the assembly portion 213. The ratchet block 22 is mounted on the assembly portion 213, and the ratchet block 22 corresponds to the ratchet row of the group hole 11. One side of the 12 is further provided with an intermeshing rod row 221, and the heart spring 23 is sleeved on one end of the main fastener 21 provided with the engaging post 211, and the heart spring 23 extends downwardly from one end of the spine block 22. The engaging portion 231 is inserted into the spine block 22 to be engaged, and the control rod 24 is inserted and assembled by the end of the main firmware 21 provided with the block block 212 and penetrates to the engaging post 211. The control rod 24 is concave corresponding to one end of the positioning bead 3. A groove 241 is provided; a rotation control disk 4 is disposed at the other end of the group hole 11. The rotation control disk 4 is concavely disposed with a circular groove 41 at a central position, and an ellipsoid 42 is formed on the bottom surface of the circular groove 41. The binding post 211 of the main firmware 21 is further provided with a steering column 5 penetrating the tip end portion of the bottom end of the heart-shaped spring 23; a fixing component 6 having a nut 61 and a a scroll spring 62 and a disc-shaped disc member 63 are located in the circular groove 41 of the transfer tray 4 and are locked with the engaging post 211 of the main firmware 21, and the bottom surface of the nut 61 is attached. Abutting against the groove surface of the circular groove 41, a limit ring 611 is protruded from the top surface of the nut 61, and one end of the spring 62 is sleeved. The limiting ring 611 of the nut 61 abuts against the nut 61. The disk member 63 is disposed at the other end of the spring 62 and is displaced in the circular groove 41. The screw member 7 is further provided with a screw member 63. The central position is penetrated and locked to the control rod 24, so that the disk control member 63 and the control rod 24 are integrally formed; wherein the elastic force of the spring 62 is compressed and released by the displacement of the control disk member 63, and the displacement of the control rod 24 is further manipulated. And the displacement of the positioning bead 3 in the assembly portion 213, and the design of the nut 61 can provide a complicated procedure for assembling the assembly, in addition to providing the spring 62 to be stably assembled and compressed.

The foregoing is a main technical feature of the main embodiment of the present invention, which corresponds to the content of the first item of the patent application scope of the present application, and the object and the implementation form of the present invention are known in detail, and the technical features described in the remaining subsidiary patent scopes are The detailed description or additional technical features of the first content of the patent application scope, rather than limiting the scope of the first paragraph of the patent application scope, it should be noted that the first item of the patent application scope in this case does not necessarily contain the remaining It is a technical feature described in the scope of the patent application.

In the assembly and maintenance, the user only needs to insert the main firmware 21 into the group hole 11 in sequence, and then install the ratchet block 22 and the heart spring 23 into the assembly portion 213 in the group hole 11, and then put the position. The transfer tray 4 is sleeved on the joint post 211 of the main firmware 21 and covers the aperture of the group hole 11. Finally, the nut 61, the spring 62 and the disc member 63 of the fixing assembly 6 are sequentially installed in the circular groove of the transfer tray 4. 41, and the joint 211 is fixedly assembled with each other, so that the assembly or the maintenance can be completed, and the user only needs to lock the corresponding joint 211 on the installation of the nut 61 until it is attached. The bottom surface of the circular groove 41 is fixed without being locked into the ellipsoid 42, and the assembly of the limit spring 62 by the limit ring 611 reduces the spring 62 from being detached from the reverse action of compression and resetting.

In addition, the application of the present invention utilizes the control of the control rod 24 and the assembly block 212 of the main firmware 21 to be assembled with the sleeve, and the components of the screw (nut) are disassembled and assembled through the sleeve, and thus the group of the main firmware 21 The block 212, and the cooperation of the control rod 24 and the positioning bead 3 are extremely important. The assembly block 212 of the present invention has a rectangular cube (corresponding to the shape of the hole in which the sleeve is inserted), and in the portion of the control rod 24, it is located on the control rod. The groove 241 of the groove 24 is further configured to have a first limiting groove portion 2411 and a second limiting groove portion 2412 on the bottom surface of the groove. The first limiting groove portion 2411 and the second limiting groove portion 2412 are connected to each other and are stepped. The groove of the first restricting groove portion 2411 is deeper than the second restricting groove portion 2412, and the width of the first restricting groove portion 2411 is also larger than the width of the second restricting groove portion 2412, so that when the disk member 63 has not been When compressed, the positioning bead 3 located in the block 212 is pushed by the second limiting portion 2412 of the control rod 24, and the local portion of the positioning bead 3 is exposed outside the assembly block 212. The sleeves are fixedly connected to each other to prevent the sleeve from falling off on its own; otherwise, when the disk member 63 faces the spring When the 62 is compressed, the displacement of the control rod 24 is pushed. At this time, the positioning bead 3 is displaced by the second restricting groove portion 2412 to the first restricting groove portion 2411, and the groove of the first restricting groove portion 2411. Deeper than the second limiting groove portion 2412, the positioning bead 3 will fall into the first limiting groove portion 2411, so that the entire positioning bead 3 is hidden in the assembly block 212, so that the assembly can be uncoupled. In the assembled form between the block 212 and the sleeve, the user can detach the sleeve from the assembly block 212 for replacement and removal, as shown in the second and third figures.

In addition, in the portion for controlling the driving direction of the present invention, the pivoting control of the steering wheel 4 is mainly used to shift the direction of the heart spring 23, and the heart spring 23 is combined with the ratchet 22 To limit the meshing direction of the rod row 221 and the ratchet row 12, thereby achieving the control of the screw tightening and the screw looseness, and the design of the steering column 5 and the transfer tray 4 can be integrally formed, or on the bottom surface of the transfer tray 4 A hole is bored, and the steering column 5 is inserted into the hole to control the swinging direction of the core spring 23. In addition, in order to enable the transfer tray 4 to stably switch the steering, the group of the nut 61, the circular groove 41 and the ellipsoid 42 It is important to match it. Therefore, in the design of the circular groove 41, the cross-section of the invention is larger than the hole area of the ellipse 42, and the cross-sectional area of the nut 61 is smaller than the groove area of the circular groove 41 but larger than the hole area of the elliptical hole 42. In this way, when the nut 61 is locked on the engaging post 211, it can completely abut against the bottom surface of the groove of the circular groove 41, so that the transfer tray 4 can be stably mounted on the handle 1, thereby reducing the problem of falling off, please refer to the first to The three figures are shown.

It is also worth mentioning that, in order to allow the steering column 5 to accurately pivot the heart spring 23, a slot portion 214 is further recessed on the corresponding side of the main assembly 21 where the assembly portion 213 is provided. The recess of the portion 214 allows the steering column 5 to have a proper spatial displacement and to drive the swing of the core spring 23, and in the comparison of the assembly portion 213 with the groove portion 214, the depth of the assembly portion 213 is recessed to a large groove. The portion 214, so that the user can clearly know the position where the ratchet 22 is to be assembled, and the area where the heart spring 23 and the steering column 5 are to be actuated, as shown in the first to third figures.

The above is only a preferred embodiment for explaining the present invention, and is not intended to impose any form of limitation on the present invention. Any modifications or variations of the present invention made in the spirit of the present invention, which are otherwise applicable and have the same effect, are still included in the scope of the present invention.

In summary, the "rapid improvement of the ratchet wrench" of the present invention is practically and cost-effectively, and is indeed fully in line with the development of the industry, and the disclosed structural invention has an unprecedented innovative structure, so it has " "Newty" should be undoubtedly considered, and the invention can be more effective than the conventional structure, and therefore has "progressiveness", which fully complies with the requirements of the application requirements of the invention patents in the Patent Law of China, and is a patent application according to law. And please ask the bureau to review it early and give it affirmation.

1‧‧‧Handle

11‧‧‧ group holes

12‧‧‧ ratchet row

2‧‧‧Drive components

21‧‧‧Main firmware

211‧‧‧ joint column

212‧‧‧Group block

213‧‧‧Assembly Department

214‧‧‧Slots

22‧‧‧thorn

221‧‧‧ rodent row

23‧‧‧Heart spring

231‧‧‧Mate

24‧‧‧Control lever

241‧‧‧ Groove

2411‧‧‧First slot

2412‧‧‧Second slot

3‧‧‧ positioning beads

4‧‧‧Transfer

41‧‧‧ round slot

42‧‧‧Elliptical hole

5‧‧‧Control column

6‧‧‧Fixed components

61‧‧‧ nuts

611‧‧‧ Limit ring

62‧‧‧ Spring

63‧‧‧Controls

7‧‧‧ Screw locks

Claims (5)

The utility model relates to a structural improvement of a ratchet wrench, comprising: a handle having a through hole formed at one end thereof and a ratchet row on the wall ring of the set of holes; a drive assembly having a main firmware, a ratchet block and a heart type a spring and a control rod, the main firmware is installed at one end of the group hole, and one end of the main firmware extends with a joint column, and the other end extends with a set of blocks, and the one side of the main firmware is adjacent to the joint column and An assembly portion is formed between the block and the positioning block is embedded in the assembly block, and the ratchet block is mounted on the assembly portion, and the ratchet block is further disposed on a side of the ratchet row corresponding to the group hole. An intermeshing rod row, the heart spring is sleeved on one end of the main fastener provided with the engaging post, and the heart spring is extended with a fitting portion inserted into the spine block corresponding to one end of the ratchet, and the control is performed The rod is inserted into the assembly end of the main firmware and is connected to the joint post. The control rod is recessed with a groove corresponding to one end of the positioning bead; and a rotary control disc is installed at the other end of the group hole. The transfer panel is recessed in the center position a circular groove, and an ellipsoid corresponding to the joint of the main firmware is formed on the bottom surface of the circular groove, and a control column is inserted into the tip end portion of the bottom end of the heart-shaped spring on the bottom surface of the rotary control disk; a fixing component is The utility model has a nut, a spring and a control disc member, wherein the nut is located in a circular groove of the transfer tray and is locked with the joint column of the main firmware, and the bottom surface of the nut is attached to the groove surface of the circular groove, and A limit ring is protruded from the top surface of the nut, and one end of the spring is sleeved on the limit ring of the nut and abuts the nut, and the control piece is disposed at the other end of the spring and is in the circular groove The inner displacement action is further provided with a screw lock member which is penetrated from the central position of the control disc member and locked to the control rod; wherein, the displacement of the control disc member compresses and releases the elastic force of the spring, and further The displacement of the control lever and the displacement of the positioning bead in the assembly are provided, and the design of the nut not only provides a stable assembly and compression of the spring, but also reduces the complicated procedure of positioning on the assembly. According to the structural improvement of the ratchet wrench of the first aspect of the invention, the groove of the control rod further has a first limiting groove portion and a second limiting groove portion on the bottom surface of the groove, the groove of the first limiting groove portion The depth system is deeper than the second restricting groove portion. When the positioning bead is displaced by the control rod, the first restricting groove portion is trapped in the assembly portion, and when the positioning bead corresponds to the second restricting groove portion, it is partially exposed outside the assembly portion. . According to the structural improvement of the ratchet wrench according to the first aspect of the patent application, the steering column and the transfer panel can be integrally formed, or the steering column can be inserted into the bottom surface of the transfer tray. According to the structural improvement of the ratchet wrench according to the first aspect of the patent application, the cross-sectional area of the circular groove of the transfer disk and the sectional area of the nut are larger than the hole area of the elliptical hole. The structural improvement of the ratchet wrench according to the first aspect of the invention, wherein the main firmware is provided with a groove portion on a corresponding side of the assembly portion, and the depth of the assembly portion is greater than the groove portion. The depth of the steering wheel is inserted into the tip end of the heart-shaped spring and displaced in the groove step. The displacement of the steering column drives the swing of the heart spring, and further controls the ratchet block and Engagement of the ratchet rows within the set of holes.