TW201321138A - Direction control device of ratchet wrench - Google Patents

Abstract

This invention is to disclose a direction control device of a ratchet wrench, comprising a wrench body, a ratchet wheel, and a control set, wherein the wrench body is disposed with a receiving slot with a bottom provided with a mutually communicated braking slot, the braking slot being opened toward the wrench body surface; the ratchet wheel is disposed in the receiving slot and the braking slot; and the control set is assembled to the braking slot. The control set comprises a control piece, two opposite ratchet blocks, and a braking block. The control piece is assembled at one end with two ratchet blocks having spacing therebetween and is fixed to the braking block at the other end. Each ratchet block is relatively meshed with and released from the periphery of the ratchet wheel. Accordingly, by toggling the braking block to the left or right, the ratchet wheel can be enabled to perform unidirectional rotation.

Description

Ratchet wrench control device

The invention relates to a ratchet wrench control device, in particular to a ratchet wrench which can switch and regulate one-way operation, and has the advantage of low cost.

The wrench tool is one of the necessary tools for assembling and disassembling mechanical parts. The wrench tool is used for tightening or disassembling the screw work such as bolts and nuts. The wrench tool of the conventional wrench has a corresponding groove for the bolt and the nut. Or have a resizable notch, use the groove or notch to fit the bolt and nut, and rotate the wrench tool to assemble and disassemble the mechanical parts. However, the conventional wrench tool needs to be repeatedly disengaged from the mechanical parts, so that the work of tightening or disassembling has been completed. For users who install and unload mechanical parts for a long time, repeated disengagement and fitting are quite troublesome tasks. Therefore, related companies have developed ratchet wrenches, so that users do not need to repeatedly disengage and fit when loading and unloading bolts and nuts. The ratchet wrench is provided with a pivotable ratchet wheel to adjust the pivoting direction for the user. It is not necessary to remove the ratchet from the bolt or the nut to repeat the disassembly and assembly work, thereby improving the user's convenience in operation.

Please refer to the Patent Application No. I298284, "Corner Control Structure Improvement", which includes a wrench body, a ratchet gear, a rocking block and a steering structure, wherein the head of the wrench body is provided with an accommodation. a slanting groove is formed on the side of the accommodating chamber, and a directional groove is formed, and a communication state is formed between the steering groove and the swaying groove, and the accommodating chamber and the swaying groove are respectively provided The ratchet gear and the swaying block are in a meshing state, and the steering groove system is provided with a steering structure; the bottom of the swaying block is provided with a hole, and one side of the hole is provided adjacent to the hole The steering structure comprises a steering block, and an elastic top device and a control piece disposed on the steering block, the elastic top device being disposed at one end of the elastic block, Pushing the swaying block to engage the swaying block with the spur gear, and one end of the control piece is placed on the slot of the swaying block, the control piece is used to prevent the elastic top device from falling off, and the control block is driven The smashing block.

The conventional ratchet wheel control structure needs to accurately correspond to the swaying groove and the swaying block, and the angle and size of the ratchet tooth must also be accurately matched with the angle and size of the ratchet tooth to enable the ratchet to smoothly pass. When the ratchet rotates and retracts the tooth, if the tilting groove and the tilting block cannot accurately correspond, the ratchet can not mesh with the ratchet tooth. In addition, if the ratchet tooth is too sharp, it is easy to cause the ratchet to easily reach but cannot smoothly retreat. The teeth, therefore the spine block in the manufacturing process, in addition to the exact corresponding to the ratchet, it is also necessary to sharpen the tip of the ratchet tooth. Such a delicate production process requires a powder metallurgy process to achieve a fine structure. Therefore, it takes a lot of processing and complicated processes to lead to a long processing time, and the cost is relatively high. Therefore, it is necessary to R&D can reduce the processing cost, and it can have stable meshing strength and smooth tooth retraction, enabling users to smoothly operate the ratchet wrench.

The present invention relates to a ratchet wrench steering device, which is a method for improving the conventional technology for manufacturing a ratchet steering wrench device, and requires a high cost, so as to obtain a stable meshing strength and a lack of smooth tooth removal. In order to achieve the foregoing object, the "ratchet wrench steering device" includes a wrench body, a ratchet wheel and a control group, wherein the wrench body is provided with a receiving groove, and the receiving groove is provided with a mutual connection at the bottom. a control slot is disposed in the accommodating groove and the swaying groove; the control group is disposed in the swaying groove, and the control group includes a control piece and two opposite sides The ratchet block and a swaying block are disposed at one end of the control piece, and the other end of the control piece is fixed with the swaying block, and the respective thorn block engages and disengages around the ratchet wheel.

The control group of the present invention further includes a first elastic top device, the first elastic top device being springed between the two ratchet blocks.

The bottom of the groove of the slanting groove of the present invention is provided with a top spacing groove of a proper spacing, the cocking block is provided with a receiving hole, and a second elastic top boring device is disposed in the accommodating hole and the top boring groove. The second elastic top device includes a ball and an elastic member. One end of the elastic member is received in the receiving hole, and the other end is assembled with the ball. The ball is located in the receiving hole and the ball Between the top and bottom slots.

The control piece of the present invention has two ribs extending at one end, and the two ribs are respectively provided with a corresponding groove for the two ribs.

The opposite sides of the two ratchet blocks are respectively provided with a hole, and the first elastic top device respectively protrudes against the hole of the two ratchet blocks.

The top surface of the smashing block of the present invention is provided with a positioning groove, and one end of the control piece is fixed in the positioning groove.

In the invention, the swaying block and the positioning groove are adjacent to the peripheral surface and have a guiding convexity, and the guiding convex protrusion protrudes outside the grooving notch.

In this way, by pulling the swaying block to the left and the right, the control piece is driven to force the ratchet in the same direction as the pulling direction to engage the ratchet, and the ratchet opposite to the pulling direction is disengaged from the ratchet, and the ratchet is pulled in the direction of pulling. Continuously rotating, so that the ratchet block in the same direction as the pulling direction is in a continuous skipping state, and the ratchet rotates in the opposite direction to the opposite direction, by switching the direction of the tilting block to achieve a one-way operation.

Therefore, the present invention can be said to be a practical and progressive creation, which is quite worthy of promotion by the industry and is publicized to the public.

In order to further illustrate the technical means and functions of the present invention for achieving the intended purpose of the invention, the specific embodiment, structure, and features of the ratchet wrench steering device according to the present invention will be described below with reference to the accompanying drawings and preferred embodiments. The effect is detailed as follows.

As shown in the first, second, and third embodiments, the main embodiment of the present invention includes a wrench body 1, a ratchet 2, and a control group 3, wherein the wrench body 1 is provided with a receiving slot 10, The bottom of the accommodating groove 10 is provided with a slanting groove 11 which is connected to the surface of the wrench body 1; the ratchet 2 is disposed in the accommodating groove 10, and the ratchet 2 is partially located at the swaying groove 11; The control group 3 includes two opposing ratchet blocks 30, a first elastic top device 31, a control piece 32 and a swaying block 33. The ratchet blocks 30 are respectively engageable with the ratchets 2, and the opposite sides of the respective ratchet blocks 30 are respectively The first elastic top device 31 is elastically coupled to the two ratchet blocks 30. The first elastic top device 31 has an elastic coupling relationship. The control piece 32 is provided. a rib 320 having a pitch extending at one end and having a Y-shape, the ribs 30 corresponding to the ribs 320 are provided with a mutually engaging groove 302, and the other end of the control piece 32 is fixed to the swaying block 33. The top surface of the swaying block 33 is provided with a positioning groove 330 which is locked with one end of the control piece 32, and the swaying block 33 is in an elliptical shape corresponding to the swaying groove 11. The swaying block 33 can be displaced to the left side in the slanting groove 11 to the right side. The bottom surface of the swaying block 33 is provided with a receiving hole 331, and a second elastic top device 332 is disposed in the accommodating hole. Between the 331 and the top sill 110, the second elastic top device 332 includes a ball 3320 and an elastic member 3321. One end of the elastic member 3321 is received in the accommodating hole 331, and the other end is provided with the ball. 3320, when the ball 3320 slides on the surface of the swaying groove 11, the ball 3320 is retracted into the accommodating hole 331, and when it is slid to the top sill groove 110, the ball 3320 is immersed in the top sipe 110. Positioning the swaying block 33, the surface of the swaying block 33 adjacent to the locating groove 330 has a control protrusion 333 toward the periphery, and the directional protrusion 333 protrudes from the slot of the swaying groove 11 by being pulled The control protrusion 333 allows the swaying block 33 to be displaced to the left and right in the swaying groove 11, so that the spurs 30 can be respectively engaged with the ratchet 2; thus, the control piece 32 is driven by the left and right swaying block 33. Forcing the ratchet 30 of the same direction as the pulling direction to engage with the ratchet 2, and the ratchet 30 opposite to the pulling direction is disengaged from the ratchet 2, and the ratchet 2 continuously rotates in the pulling direction, The same direction of the movable block 30 in a continuous ratchet tooth skipping state, pulled toward the ratchet wheel 2 is rotated in the opposite direction against the stop, so that the ratchet 2 only unidirectional rotation operation.

Please refer to the fourth figure, which is a schematic diagram of the ratchet 2 in the forward direction of rotation, the tilting block 33 is displaced to the left, so that the second elastic top device 332 is caught in the top slot 110 on the left side of the tilting groove 11. Positioning, the left rib 320 of the control piece 32 is displaced to the left, forcing the ratchet 30 on the left rib 320 of the control piece 32 to engage with the ratchet 2, and the ratchet located on the right rib 320 of the control piece 32. When the ratchet 2 is disengaged from the ratchet 2 and the ratchet 2 is rotated counterclockwise, the left ratchet 30 and the ratchet 2 assume a continuous state of skipping, and clockwise is abutment.

Please refer to the fifth figure, which is a schematic diagram of the ratchet wheel 2 reversely abutting, and the rocking block 30 is displaced to the right, so that the second elastic top device 332 is trapped in the top groove 110 located on the right side of the rocking groove 11. The right rib 320 of the control piece 32 is displaced to the right, forcing the ratchet 30 on the right rib 320 of the control piece 32 to engage with the ratchet 2, and the ratchet 30 located on the left rib 320 of the control piece 32. When the ratchet 2 is disengaged from the ratchet 2 and the ratchet 2 is rotated clockwise, the right ratchet 30 and the ratchet 2 assume a continuous skipping state, and counterclockwise to resist rotation.

The above description is only intended to explain the preferred embodiments of the present invention, and is not intended to limit the invention in any way. The changer should still be included in the scope of this creative intent.

In summary, the "ratchet wrench steering device" of the present invention is indeed in full compliance with the needs of industrial development, and the disclosed structural creation is also an unprecedented innovative structure, so it has " "The novelty" should be taken into consideration, and the invention can be more effective than the conventional structure. Therefore, it is also "progressive". It fully complies with the requirements of the application requirements for the creation of patents in the Patent Law of China, and is a patent application in accordance with the law. And please ask the bureau to review it early and give it affirmation.

1. . . Wrench body

10. . . Locating slot

11. . . Slot

110. . . Top groove

2. . . ratchet

3. . . Control group

30. . . Thorn

301. . . Hole

302. . . Crate

31. . . First elastic top device

32. . . Control film

320. . . Rib

33. . . Turbulent block

330. . . Positioning slot

331. . . Socket hole

332. . . Second elastic top device

3320. . . Ball

3321. . . Elastic part

333. . . Controlled convex

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

The second drawing is a schematic view of the three-dimensional assembly of the present invention.

The third figure is a schematic cross-sectional view of the present invention.

The fourth figure is a schematic diagram of the ratcheting forward abutment rotation of the present invention.

The fifth figure is a schematic diagram of the ratchet reverse abutment rotation of the present invention.

1. . . Wrench body

10. . . Locating slot

11. . . Slot

110. . . Top groove

2. . . ratchet

3. . . Control group

30. . . Thorn

301. . . Hole

302. . . Crate

31. . . First elastic top device

32. . . Control film

320. . . Rib

33. . . Turbulent block

330. . . Positioning slot

331. . . Socket hole

332. . . Fixed two elastic top device

3320. . . Ball

3321. . . Elastic part

333. . . Controlled convex

Claims (7)

A ratchet wrench control device includes a wrench body, a ratchet wheel and a control group, wherein: the wrench body is provided with a receiving groove, and the receiving groove is provided with a mutually connected rocking groove at the bottom, the tilting groove Opening the surface of the wrench body; the ratchet is disposed in the accommodating groove and the swaying groove; the control group is disposed in the swaying groove, the control group includes a control piece, two opposite thorn blocks, and a swaying block, One end of the control piece is provided with the two spaced-apart ratchets, and the other end of the control piece is fixed with the tilting block, and the respective ratchet blocks are engaged and disengaged relative to the ratchet wheel; thus, the left and right flipping the movable block drives the control The blade forcibly engages the ratchet in the same direction as the pulling direction, and the ratchet opposite to the pulling direction is disengaged from the ratchet, the ratchet is continuously rotated in the past pulling direction, and the ratchet block is the same as the pulling direction. In the state of continuous skipping, the ratchet resists rotation in the opposite direction of the pulling, so that the ratchet can only be operated in one direction. The ratchet wrench steering device of claim 1, wherein the control group further comprises a first elastic top device, the first elastic top device being spring-mounted between the two ratchet blocks. The ratchet wrench control device according to the first aspect of the invention, wherein the bottom of the slanting groove is provided with two appropriate spacing top sills, the swaying block is provided with a receiving hole, and a second elastic top is further provided. The second elastic top device comprises a ball and an elastic member, and one end of the elastic member is received in the receiving hole, and the other end is connected with the ball The ball is disposed between the receiving hole and the top groove. The ratchet wrench control device according to claim 1, wherein the control piece has one end extending with two ribs at a distance, and the two ribs are respectively provided with a mutually engaging groove. The ratchet wrench steering device according to the first aspect of the invention, wherein the opposite sides of the two ratchet blocks are respectively provided with a hole, and the first elastic top device respectively engages the hole of the two ratchet blocks. The ratchet wrench control device according to the first aspect of the invention, wherein the top surface of the turbulence block is provided with a positioning groove, and one end of the control piece is fixed in the positioning groove. The ratchet wrench control device according to the first aspect of the invention, wherein the swaying block and the positioning groove have a control protrusion facing the peripheral surface, and the guiding convex portion protrudes outside the swaying slot.