JP3243441U - Wrench structure with double-ended curved stem - Google Patents

Abstract

An object of the present invention is to provide a wrench structure with double-ended curved ridges capable of enhancing operability and high torque effect. A double-headed wrench structure including a ratchet (10) and a stop block (20), wherein a wolf tooth component (11) having continuous teeth is provided on the outer peripheral surface of the ratchet, each of the wolf tooth components the alveolar angle between the teeth of the tooth is greater than 90 degrees, two separate pawls 21 are provided on the upper side of the stop block and can selectively contact and engage with the wolf tooth component; The angle of each tooth of the pawl is less than 90 degrees, and there is a meshing yaw distance between the pawl and the wolf tooth component with a positional difference greater than 1 degree, thereby offsetting the angle difference between the two. Through this, it can effectively improve the working efficiency, can be tightly linked when meshing, and can achieve high torque effect. [Selection drawing] Fig. 2

Description

The present invention relates to a ratchet wrench, and in particular, presents an improvement in the wrench structure with double-ended bend ridges.

Until now, in order to improve the efficiency of maintenance and disassembly, the industry has always used work tools such as ratchet wrenches, which are basically used as tools for disassembling articles. Through the fitting and fixing between the inner ratchet and the stop block, the ratchet wrench can be used to achieve the tightening or loosening effect by repeatedly turning, but the ratchet of the conventional ratchet wrench The angle between each tooth of the outer tooth and the pawl of the stop block is 90 degrees, and when it is actually operated, the angle between the teeth is too tight, which can easily cause the movement to be uneven. Furthermore, it becomes impossible to operate, and finally the operation efficiency becomes low, lacking in practicality, and there is a need for improvement.

In view of this, the inventor of the present invention has been engaged in the manufacturing development and design of related products for many years, and after detailed design and careful evaluation for the above purpose, the present invention with practicality is obtained.

The technical problem to be solved by the present invention is to overcome the above-mentioned drawbacks of the prior art by providing an improved wrench structure with double-ended curved tines, which can enhance the operability and high torque effect.

A refinement of the double-ended wrench structure described above, comprising a wolf tooth component including a ratchet and a stop block, wherein a wolf tooth component having continuous teeth on an outer peripheral surface of the ratchet is provided, each of the wolf tooth components the alveolar angle between the teeth of the tooth is greater than 90 degrees, and two separate pawls are provided on the upper side of the stop block and are capable of selectively contacting and engaging the wolf tooth component; and wherein each of said pawls has a tooth angle of less than 90 degrees, and yet has a meshing yaw distance between said pawls and said wolf tooth component greater than 1 degree in position difference. .

The ratchet and stop block are assembled on a wrench body, the wrench body has a working head, and a through hole is provided through the working head through the upper and lower end surfaces for assembling and mounting the ratchet. A mounting groove for mounting the stop block is provided on the underside of the through hole, and the mounting groove passes through both sides to form two through holes, which are further mounted at the center of the bottom surface of the mounting groove. A hole is preferably provided in which a spring and a ball abutting the top end of the spring are mounted.

Preferably, the wolf tooth component has more than 36 teeth, more preferably 72 teeth.

Each tooth of the pawl is formed sequentially along a concave arc shape, and the alveolar angle between each tooth is smaller than the angle of each tooth, wherein the alveolar 81 degrees to 85 degrees, preferably 83 degrees, and 87 degrees to 89 degrees, preferably 88 degrees.

Two switching lamps are symmetrically installed at the lower end of the stop block, and the angle between the two switching lamps is 136 degrees, and the middle position of the lower end and between the two switching lamps is It is preferable that one protruding stop be provided at the angle of the stop being 105 degrees.

Compared with the prior art, the effect of the present invention is that the number of teeth of the wolf tooth component of the ratchet is more than 36, which can greatly increase the contact area between the ratchet and the stop block, further improve the torque, and The ratchet is designed so that the angle of each alveolar on the wolf tooth component of the outer circumference of the ratchet is greater than 90 degrees, and the pawl of the stop block is designed so that the angle between each tooth on the tooth is less than 90 degrees, thereby effectively improving the operating efficiency through the difference between the two angles, and furthermore, the pawl and the With the wolf tooth component, it has a meshing yaw distance with a position difference greater than 1 degree, can be tightly linked when meshing, and can reach the effect of high torque.

1 is a three-dimensional view of the ratchet wrench of the present invention; FIG. 1 is an exploded view of the ratchet wrench of the present invention; FIG. 4 is a partially enlarged schematic view of the ratchet mechanism of the present invention; FIG. 4 is a partially enlarged schematic view of the stop block of the present invention; FIG. 4 is a cross-sectional view of the assembly of the ratchet wrench of the present invention; FIG. 1 is a schematic diagram of the engagement between the ratchet mechanism of the present invention and a stop block; FIG. Fig. 4 is a schematic view of pulling the stop block to adjust the movement direction of the present invention;

For better understanding and appreciation of the objects, features and effects of the present invention, the following detailed description will be given with reference to the drawings in [Brief Description of the Drawings].

First, as shown in FIGS. 2, 3, and 4, an improvement to a double-ended wrench wrench structure including a ratchet 10 and a stop block 20, wherein the ratchet 10 has continuous teeth on its outer peripheral surface. A tooth component 11 is provided, the number of teeth of said wolf tooth component 11 being greater than 36, more preferably 72, and the alveolar space between each tooth of said wolf tooth component 11. is greater than 90 degrees, two pawls 21 are provided separately on the upper side of the stop block 20 and can selectively contact and engage with the wolf tooth component 11, and the pawls each tooth of 21 is formed sequentially along a concave arc shape, the alveolar angle B between each tooth of said pawl portion 21 being smaller than the angle of each tooth, wherein , the alveolar angle is 81 degrees to 85 degrees, preferably 83 degrees; the tooth angle C is 87 degrees to 89 degrees, preferably 88 degrees; 20 are symmetrically provided with two switching lamps 22, the angle D between the two switching lamps 22 is 136 degrees, and the middle position of the lower end and the two switching lamps 22 One stop portion 23 is protruded between and the angle E of the stop portion 23 is set to 105 degrees.

Further, as shown in FIGS. 1 to 5, the ratchet 10 and the stop block 20 are assembled on a wrench body 30, the wrench body 30 has a working head 31, and the working head 31 has upper and lower end faces. A through hole 32 for assembling and installing the ratchet 10 is provided through the through hole 32, a mounting groove 33 for mounting the stop block 20 is provided on the lower side of the through hole 32, and the mounting groove 33 is formed on both sides and a mounting hole 35 is provided in the center of the bottom surface of the mounting groove 33. A spring 36 and a ball 37 abutting the top end of the spring 36 are mounted in the mounting hole 35. mounted whereby the pawl 21 of the stop block 20 is assembled into the mounting groove 33 towards the through hole 32 and through the center of the working head 31 and the stop block 20 with a bolt 24; Pivoting and connecting, both sides of the stop point 23 at the lower end of the stop block 20 are positioned against the ball 37, and the ratchet 10 is accommodated in the through hole 32 using a C-shaped buckle. and is engaged with one of the pawls 21 on the stop block 20 via a wolf tooth component 11 on the periphery, thus forming a ratchet wrench.

6 and 7, the wrench body 30 is embedded through the ratchet 10 assembled to the working head 31 and fitted with the part nut, and the ratchet 10 and the wolf The engagement with the tooth component is used to engage interlocking and jump idling conditions, the wrench body 30 is used to rotate and reset to return to an angle that is easy to apply force, and repeated rotation to remove the part nut. Both ends of the locking block 20 are passed through the through hole 34 communicating with both sides of the mounting groove 33 to the outside of the through hole 34, and the two ends of the locking block 20 are directly pulled and switched to achieve the tightening or loosening work. It has a directional wrenching effect, in addition, the number of teeth of the wolf tooth component 11 of the ratchet 10 is more than 36, which can greatly increase the contact area, further improve the torque and reduce the working motion. and therefore can operate in a narrow space, and the angle of each of the alveoli on the outer wolf tooth component 11 of the ratchet 10 is designed to be greater than 90 degrees, and the pawl 21 of the stop block 20 is designed so that the angle between each of the corresponding teeth in is less than 90 degrees, thereby effectively improving the operating efficiency through the difference between the two angles, and furthermore, the pawl portion 21 and the , and the wolf tooth component 11 has a meshing yaw distance F with a position difference greater than 1 degree, and can be tightly linked when meshing, and can reach the effect of high torque.

The above is only one embodiment of the present invention, and is not intended to limit the implementation scope of the present invention. That is, any changes or modifications made within the scope of the claims of the present invention should also fall within the scope of the present invention.

10 Ratchet 11 Wolf Tooth Component 20 Stop Block 21 Pawl 22 Switching Lamp 23 Stop Tip 24 Bolt 30 Wrench Body 31 Working Head 32 Through Hole 33 Mounting Groove 34 Through Hole 35 Mounting Hole 36 Spring 37 Ball

Claims (6)

A double-ended wrench structure including a ratchet and a stop block,
A wolf tooth component having continuous teeth is provided on the outer peripheral surface of the ratchet, wherein the alveolar angle between each tooth of the wolf tooth component is greater than 90 degrees and above the stop block. Two pawls are provided separately and are capable of selectively contacting and engaging the wolf tooth component, each of the pawls having a tooth angle of less than 90 degrees, whereby the wolf tooth is A meshing yaw that effectively improves operating efficiency through the angular difference between the component and the pawl, yet has a position difference of greater than 1 degree between the pawl and the wolf tooth component. A wrench structure with a double-ended curved shank, characterized by achieving a higher torque effect due to the distance. The ratchet and stop block are assembled on a wrench body, the wrench body has a working head, and a through hole is provided through the working head through the upper and lower end surfaces for assembling and mounting the ratchet. A mounting groove for mounting the stop block is provided on the underside of the through hole, and the mounting groove passes through both sides to form two through holes, which are further mounted at the center of the bottom surface of the mounting groove. 2. The wrench structure of claim 1, wherein a hole is provided in which a spring and a ball abutting the top end of the spring are mounted. 3. The double-ended curved cane of claim 2, wherein said stop block is pivoted in said mounting groove in combination with a bolt, and both ends of said stop block pass through said two through-holes to reach the outside. wrench construction. 2. The wrench structure of claim 1, wherein said wolf tooth component has more than 36 teeth and 72 teeth. Each tooth of the pawl is formed sequentially along a concave arc shape, and the alveolar angle between each tooth is smaller than the angle of each tooth, wherein the alveolar The angle of the teeth is 81 degrees to 85 degrees, making an angle of 83 degrees, and the angle of the teeth is 87 degrees to 89 degrees, making an angle of 88 degrees. Wrench structure with a curved stem. Two switching lamps are symmetrically installed at the lower end of the stop block, and the angle between the two switching lamps is 136 degrees, and the middle position of the lower end and between the two switching lamps is 2. The wrench structure of claim 1, wherein the wrench structure of claim 1 is characterized in that one stop point protrudes from the edge and the angle of the stop point is 105 degrees.