TWI529040B - Quickly adjust and fix the head angle of the pneumatic tool - Google Patents

Description

Pneumatic tool for quickly adjusting and fixing the head angle

The present invention primarily discloses a pneumatic tool, especially a pneumatic tool that quickly adjusts and fixes the angle of the head.

Please refer to the patent of "Angle/Pneumatic Handle with Angle Adjustment" in Chinese Patent No. 200821098, which is an angular/adjustable pneumatic/electric wrench, which mainly comprises a handle, a driving mechanism and a ratchet housing. a ratchet housing, a crank, a ratchet set, a rotary knob and a ratchet anvil; wherein the crankshaft between the drive mechanism and the ratchet set further comprises an input shaft, a bushing and a output shaft, the input force One end of the shaft is coupled with the driving mechanism for power input, and one end of the output shaft is coupled with the ratchet set, and can be used to drive the yoke to reciprocate left and right. The bushing is pivoted between the input shaft and the output shaft. And a universal joint is formed, so that when the input shaft and the output shaft are interlocked by the ratchet group to generate a relative bending angle, the power can be smoothly transmitted.

However, since the pneumatic/electrical wrench having the above structure has the function that the ratchet housing can pivot relative to the ratchet housing, the ratchet housing is yawed relative to the ratchet housing during use, and the angle is constantly changed, resulting in operational Inconvenience, if the user only uses a single hand to hold the handle to operate, the ratchet anvil may jump off the tool head in the original drive due to vibration, or the ratchet housing is biased to an inappropriate driving angle to facilitate the operation, resulting in pneumatic / Electric wrenches cannot actually improve work efficiency and are not easy to operate.

In view of the above-described deficiencies in the conventional structure, the inventors have invented a pneumatic tool for quickly adjusting and fixing the angle of the head which overcomes all of the disadvantages of the above-described conventional structure.

The main purpose of the present invention is to provide a pneumatic tool comprising a handle and a drive head, the handle extending along an axial direction of a first virtual cross shaft, the handle A pivoting portion is disposed at one end of the first virtual through-axis axial direction, and the handle is provided with a plurality of positioning holes along a radial side of the first virtual through-axis of the pivoting portion, the driving head is along a An axial extension of the second virtual traverse shaft, the accommodating portion of the driving head is disposed at a pivotal portion of the shank The driving head is pivotable relative to the handle, and the pivoting center distance of each of the plurality of positioning holes to the driving head is the same, and the first virtual cross of the driving head is pivoted relative to the handle Forming an angle between the shaft and the second virtual cross shaft that is greater than 90 degrees to less than 180 degrees or overlapping each other, the driving head is provided with a control slot on a side of the receiving portion along the radial direction of the second virtual cross shaft. The control slot extends through the receiving portion, and the control slot is provided with a positioning member and an elastic member, one end of the elastic member abutting against the control slot and the other end pushing the positioning member, the driving head having a control member capable of axially along the second virtual coaxial axis a locking position and a releasing position are connected to the outer circumference of the receiving portion in a radial direction along the second virtual through-axis, and the control member is disposed along an inner circumference of the second virtual through-axis There is a dodging portion and an abutting portion. When the control member is in the locked position, the pressing portion of the control member corresponds to the positioning member in the slot, and the control member moves the positioning member to move the positioning member. In any one of the plurality of positioning holes, the driving head cannot be pivoted relative to the handle to fix the position. When the control member is in the release position, the dodging portion of the control member corresponds to the positioning member in the slot. The positioning member is retracted from the positioning hole, and the driving head is pivotable relative to the handle to change the angle. The pneumatic tool can pivot the driving head relative to the handle by the above structure, and the driving member can be opposite to the driving The design of the head movement provides the effect of locking or releasing the pivoting function of the drive head.

The distance of the urging portion along the second virtual coaxial axis to the second virtual coaxial axis is smaller than the distance of the dodging portion along the second virtual transverse axis to the second virtual coaxial axis.

The driving head has an elastic body capable of pushing the control member to move in a direction of a locking position. When the control member is in the releasing position, the elastic body moves the positioning member to move out of the positioning hole.

The control slot includes a large diameter portion and a small diameter portion to form a step shape. The large diameter portion is adjacent to an outer circumference of the accommodating portion, and the small diameter portion is adjacent to an inner circumference of the accommodating portion, and one end of the positioning member Forming a card portion and forming a positioning portion at the opposite end, the card portion and the elastic member are located in the large diameter portion, and one end of the elastic member abuts against a side of the small diameter portion adjacent to the large diameter portion and The other end pushes the card portion. When the control member is in the locking position, the positioning portion of the positioning member is inserted into the positioning hole. When the control member is in the release position, the positioning portion of the positioning member is withdrawn from the positioning hole.

The accommodating portion is provided with a limiting flange and a limiting concave edge along the outer circumferential edge of the second virtual through-axis, the limiting flange and the limiting concave edge are not adjacent to each other, and the limiting concave A limiting ring is disposed in the edge, the limiting ring protrudes from the outer periphery of the receiving portion, and the control member and the elastic body are located between the limiting flange and the limiting ring, and one end of the elastic body Pushing the limit flange and pushing the other end of the control member to push the pressing portion of the control member. When the control member is in the locked position, one end of the control member abuts against the limit ring, and the control member is in the release position. The control member is disengaged from the limit ring.

a steel ball is disposed in the control slot, and the steel ball of the control slot is disposed at an end of the positioning member different from the handle. When the control member is in the locked position, the control member is moved by pushing the steel ball of the control slot. The positioning member moves, and the dodging portion accommodates the steel ball of the control slot when the control member is in the release position.

The pivoting portion is provided with a first pivot hole along a radial direction of the first virtual through-axis. The distance between each of the plurality of positioning holes to the first pivot hole is the same, so that the plurality of positioning holes are The first pivot hole is arranged in an arc shape at the center, and the receiving portion is configured to receive the pivoting portion. The receiving portion of the driving head is pivotally disposed on the pivoting portion of the handle centering on the first pivot hole.

The receiving portion forms a first ear along a radial side of the second virtual through-axis and a second ear on a different side, the first ear and the second ear are respectively provided with a first a second pivot hole, a second pivot hole of the first ear and a second pivot hole of the second ear are provided with a screw, and the screw of the first ear and the screw of the second ear are respectively screwed to the first The ends of the pivot holes are different.

The handle is provided with a fixing hole on a side of the pivoting portion which is different from the positioning hole in a radial direction of the first virtual through-axis, and the fixing hole is provided with an elastic member and a steel ball from the inside to the outside. One end of the elastic member abuts against the bottom surface of the fixing hole, and the other end pushes the steel ball of the fixing hole. The driving head is provided with a plurality of fixing holes in the radial direction of the second virtual coaxial axis. The distance between each of the plurality of fastening holes and the second pivot hole is the same, so that the plurality of fastening holes are arranged in an arc centered on the second pivot hole, and the steel ball of the fixing hole can correspond to Any one of the plurality of fastening holes is pushed by the elastic member to be caught in the fastening hole.

The control slot is adjacent to the first ear, and the fastening hole is located at a side of the second ear adjacent to the first ear.

The urging portion has a ring-shaped convex shape, and the escaping portion has a concave shape.

Other objects, advantages and novel features of the invention will become apparent from the description and appended claims.

The technology, means and functions of the present invention are described in detail with reference to the accompanying drawings.

1 to 3, a perspective view and an exploded perspective view of a pneumatic tool for quickly adjusting and fixing a head angle according to the present invention. The pneumatic tool 10 of the present invention includes a handle 20 and a drive head 30;

Please refer to FIG. 4 to FIG. 6 for a cross-sectional structural view of the pneumatic tool for quickly adjusting and fixing the head angle of the present invention. The handle 20 extends along the axial direction of a first virtual through-axis L1. The end of the handle 20 along the axial direction of the first virtual through-axis L1 is provided with a pivoting portion 21 along which the pivoting portion 21 is along the first A first pivot hole 211 is defined in the radial direction of the virtual cross-shaft L1. The handle 20 is provided with a plurality of positioning holes 22 along the radial direction of the first virtual cross-axis L1. The distance between each of the positioning holes 22 and the first pivot hole 211 is the same, and the plurality of positioning holes 22 are arranged in an arc shape centering on the first pivot hole 211.

The handle 20 is provided with a fixing hole 23 on the side of the pivoting portion 21 which is different from the positioning hole 22 in the radial direction of the first virtual through-axis L1. The fixing hole 23 is sequentially disposed from the inside to the outside. An elastic member 231 and a steel ball 232, one end of the elastic member 231 abuts against the bottom surface of the fixing hole 23 and the other end pushes the steel ball 232 of the fixing hole 23.

The driving head 30 extends along the axial direction of a second virtual through-axis L2. The driving head 30 is disposed at one end of the second virtual through-axis L2 in the axial direction to provide a receiving portion 31. The receiving portion 31 can accommodate the pivot. The accommodating portion 31 of the driving head 30 is pivotally disposed on the pivoting portion 21 of the handle 20 about the first pivot hole 211 to enable the driving head 30 to pivot relative to the handle 20 . During the pivoting of the driving head 30 relative to the handle 20, the first virtual through-axis L1 and the second virtual through-axis L2 form an angle of more than 90 degrees to less than 180 degrees or coincide with each other.

The accommodating portion 31 forms a first ear 311 along a radial side of the second virtual coaxial axis L2 and a second ear 312 on the other opposite side. The first ear 311 and the second ear 312 Each of the second pivot holes 313 of the first ear 311 and the second pivot hole 313 of the second ear 312 are respectively provided with a screw 314, and the screw 314 of the first ear 311 is disposed. The screws 314 of the second ear 312 are respectively screwed to the opposite ends of the first pivot hole 211.

The accommodating portion 31 is provided with a limiting flange 315 and a limiting concave edge 316 along the outer circumferential edge of the second virtual through-axis L2. The limiting flange 315 and the limiting concave edge 316 are not in phase with each other. A limiting ring 317 is disposed in the limiting recess 316. The limiting ring 317 protrudes from the outer periphery of the receiving portion 31.

A control slot 32 is disposed on the side of the accommodating portion 31 along the radial direction of the second virtual coaxial axis L2. The control slot 32 is adjacent to the first ear 311, and the control slot 32 extends through the receiving slot 32. The control unit 32 includes a large diameter portion 321 and a small diameter portion 322 which are formed in a class shape. The large diameter portion 321 is adjacent to the outer circumference of the accommodating portion 31. The small diameter portion 322 is adjacent to the accommodating portion. The inner circumference of the control slot 32 is provided with a positioning member 323, an elastic member 324 and a steel ball 325. One end of the positioning member 323 forms a card portion 326 and defines a positioning portion 327 at the other end. The card portion 326 and the elastic member 324 are located in the large-diameter portion 321 . One end of the elastic member 324 abuts against the side of the small-diameter portion 322 adjacent to the large-diameter portion 321 and pushes the card portion 326 at the other end. The steel ball 325 is disposed at an end of the positioning member 323 that is different from the handle 20 .

The driving head 30 is disposed in the accommodating portion 31 along the second virtual through-axis L2, and has a plurality of fastening holes 33. The fastening hole 33 is located at a side of the second ear 312 adjacent to the first ear 311. The distance between each of the plurality of fastening holes 33 and the second pivot hole 313 is the same, and the plurality of fastening holes 33 are arranged in an arc centered on the second pivot hole 313. The steel ball 232 of the hole 23 can be corresponding to any one of the plurality of fastening holes 33 and is pushed by the elastic member 231 to be caught in the fastening hole 33.

The driving head 30 has a control member 34 and an elastic body 35. The control member 34 can be coupled to the driving head 30 in a reciprocating linear motion between the locking position and the releasing position along the axial direction of the second virtual coaxial axis L2. The accommodating portion 31 is disposed along the outer peripheral edge of the second virtual through-axis L2 in the radial direction. The control member 34 is provided with a dodging portion 341 and an abutting portion 342 along the inner circumferential edge of the second virtual through-axis L2. The distance of the pushing portion 342 along the second virtual through-axis L2 to the second virtual through-axis L2 is smaller than the distance of the dodging portion 341 along the second virtual through-axis L2 to the second virtual through-axis L2. The ejector portion 342 is annularly convex, and the dodging portion 341 is annularly concave. The control member 34 and the elastic body 35 are located between the limiting flange 315 and the limiting ring 317. Pushing the limit flange 315 and the other end of the same pushes the abutting portion 342 of the control member 34.

Please refer to FIG. 7 to FIG. 9 again, which is an action diagram of the pneumatic tool for quickly adjusting and fixing the head angle of the present invention. When the control member 34 is in the locked position, the pressing portion 342 of the control member 34 corresponds to the positioning member 323 in the control slot 32. The control member 34 moves the positioning member 323 by pushing the steel ball 325 to move the positioning member 323. The positioning portion 327 of the member 323 is inserted into any one of the plurality of positioning holes 22, and the driving head 30 cannot be pivoted relative to the handle 20 to fix the position, and one end of the control member 34 abuts against the positioning portion The limiting ring 317; when the control member 34 is in the releasing position, the dodging portion 341 of the control member 34 corresponds to the positioning member 323 in the control slot 32, the dodging portion 341 receives the steel ball 325 and the elastic body 35 shifts the positioning member The 323 moves to cause the positioning portion 327 of the positioning member 323 to exit the positioning hole 22, the driving head 30 can be pivoted relative to the handle 20 to change the angle, and the control member 34 is disengaged from the limiting ring 317.

The pneumatic tool 10 can pivot the driving head 30 relative to the handle 20 by the above structure, and at the same time, the control member 34 can provide a function of locking or releasing the pivoting function of the driving head 30 with respect to the design of the driving head 30 moving. effect. Moreover, since the control member 34 moves in a linear reciprocating motion when moving relative to the driving head 30, it is inevitable that one of the locking position or the releasing position is necessary to push the control member 34 to the bottom, which is very convenient to operate. The elastic body 35 is also disposed in the driving head 30. In the natural state, the elastic body 35 can push the control member 34 to move in the locking position, thereby avoiding the vibration of the driving head 30 due to the operation of the pneumatic tool 10. The lock state is released and pivoted relative to the grip 20.

As far as the above is concerned, it can be concluded that the present invention has the following advantages:

1. The pneumatic tool of the present invention for quickly adjusting and fixing a head angle, wherein the pneumatic tool comprises a handle and a driving head, the handle extending along an axial direction of a first virtual through shaft, the handle along the first A pivoting portion is disposed at one end of the axial direction of the virtual coaxial shaft, and the handle is provided with a plurality of positioning holes along a radial side of the first virtual through-axis of the pivoting portion, the driving head is along a second virtual An axially extending portion of the drive shaft, the drive head is disposed at an end of the second virtual coaxial shaft in an axial direction, and the receiving portion of the drive head is pivotally disposed on the pivoting portion of the handle to enable the drive head Being pivotable relative to the handle, the pivot center distance of each of the plurality of positioning holes to the driving head is the same, and the first virtual cross shaft and the driving head are pivoted relative to the handle Forming an angle of more than 90 degrees to less than 180 degrees between the second virtual intersecting shafts or overlapping each other, the driving head is provided with a control slot on a side of the receiving portion along a radial direction of the second virtual through shaft, the control slot Through the accommodating portion, a positioning member and a bullet are disposed in the control slot a resilient member having one end abutting against the control slot and the other end pushing the positioning member, the driving head having a control member axially movable in the locked position and the released position along the second virtual coaxial axis The driving head is reciprocally linearly coupled to the outer peripheral edge of the receiving portion along the radial direction of the second virtual through-axis, and the control member is provided with a dodging portion along the inner circumference of the second virtual through-axis in the radial direction. An urging portion, when the control member is in the locking position, the urging portion of the control member corresponds to the locating member in the slot, and the control member moves the locating member to move, so that the positioning member is inserted into the plurality of positioning holes In any one of the positioning holes, the driving head cannot be pivoted relative to the handle to fix the position. When the control member is in the release position, the dodging portion of the control member corresponds to the positioning member in the slot, and the positioning member exits the positioning member. Positioning a hole, the driving head is pivotable relative to the handle, and the pneumatic tool is capable of pivoting the driving head relative to the handle by the above structure, while utilizing the design that the control member can move relative to the driving head mention Lock or unlock the drive head pivots pendulum effect function.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so that the numerical value is changed or the equivalent element is replaced, or the equivalent of the scope of the patent application of the present invention. Changes and modifications are still within the scope of the invention patent.

10‧‧‧ pneumatic tools
20‧‧‧Handle
21‧‧‧ pivotal department
211‧‧‧ first pivot hole
22‧‧‧Positioning holes
23‧‧‧Fixed holes
231‧‧‧Flexible parts
232‧‧‧ steel balls
30‧‧‧Drive head
31‧‧‧ 容部
311‧‧‧ first ear
312‧‧‧second ear
313‧‧‧Second pivot hole
314‧‧‧ screws
315‧‧‧ Limiting
316‧‧‧ Limit recess
317‧‧‧ Limit ring
32‧‧‧Control slot
321‧‧‧Great Path Department
322‧‧‧Little Trails Department
323‧‧‧ positioning parts
324‧‧‧Flexible parts
325‧‧‧ steel balls
326‧‧‧Card Department
327‧‧‧ Positioning Department
33‧‧‧Cargukong
34‧‧‧Controls
341‧‧ ‧ evasion department
342‧‧‧Remove the Ministry
35‧‧‧ Elastomers
L1‧‧‧first virtual axis
L2‧‧‧Second virtual axis

Figure 1 is a perspective view of a pneumatic tool for quickly adjusting and fixing the head angle of the present invention. Figure 2 is an exploded perspective view of the pneumatic tool for quickly adjusting and fixing the head angle of the present invention. Fig. 3 is an exploded perspective view showing another perspective of the pneumatic tool for quickly adjusting and fixing the head angle of the present invention. Figure 4 is a cross-sectional structural view of the pneumatic tool for quickly adjusting and fixing the head angle of the present invention. Fig. 5 is a cross-sectional structural view showing a part of a pneumatic tool of the present invention for quickly adjusting and fixing the head angle. Fig. 6 is a partially enlarged cross-sectional structural view showing another perspective of the pneumatic tool for quickly adjusting and fixing the head angle of the present invention. Fig. 7 is a motion diagram of the pneumatic tool control member for quickly adjusting and fixing the head angle of the present invention to move to the release position. Fig. 8 is a motion diagram of the pneumatic tool driving head of the present invention for quickly adjusting and fixing the head angle with respect to the handle pivoting. Figure 9 is an action diagram of the pneumatic tool control member for quickly adjusting and fixing the head angle to the locking position of the present invention.

10‧‧‧ pneumatic tools

20‧‧‧Handle

30‧‧‧Drive head

31‧‧‧ 容部

311‧‧‧ first ear

34‧‧‧Controls

Claims (11)

A pneumatic tool for quickly adjusting and fixing a head angle, comprising: a handle extending along an axial direction of a first virtual through shaft, the handle being disposed along an axial end of the first virtual through shaft There is a pivoting portion, the handle is provided with a plurality of positioning holes on a radial side of the first virtual through-axis of the pivoting portion; a driving head, the driving head is along an axial direction of a second virtual through-axis An accommodating portion is disposed at an end of the driving head along the axial direction of the second virtual coaxial axis, and the receiving portion of the driving head is pivotally disposed on the pivoting portion of the handle to enable the driving head to be opposite to the handle Pivoting, the pivot center distance of each of the plurality of positioning holes to the driving head is the same, and the first virtual cross shaft and the second virtual cross shaft are pivoted relative to the grip of the driving head Forming an angle of more than 90 degrees to less than 180 degrees or overlapping each other, the driving head is provided with a control slot on a side of the receiving portion along a radial direction of the second virtual through shaft, the control slot penetrating the receiving portion The control slot is provided with a positioning member and an elastic member, the elasticity One end of the piece abuts against the control slot and the other end pushes up the positioning member, the driving head has a control member capable of opposing the drive between the locked position and the released position along the second virtual coaxial axis The head is reciprocally linearly coupled to the outer periphery of the receiving portion along the radial direction of the second virtual through-axis, and the control member is provided with a dodging portion and an abutting portion along the inner circumference of the second virtual transoming axis. When the control member is in the locked position, the pressing portion of the control member corresponds to the positioning member in the slot, and the control member moves the positioning member to move, so that the positioning member is inserted into any one of the plurality of positioning holes. In the hole, the driving head can not be pivoted relative to the handle to fix the position. When the control member is in the release position, the dodging portion of the control member corresponds to the positioning member in the slot, and the positioning member exits the positioning hole, the driving The head is pivotable relative to the handle to change the angle. A pneumatic tool for quickly adjusting and fixing a head angle according to claim 1, wherein a distance of the urging portion along the second virtual coaxial axis to the second virtual coaxial axis is smaller than the dodging portion along the second virtual The distance from the transverse axis to the second virtual transverse axis. A pneumatic tool for quickly adjusting and fixing a head angle according to claim 2, wherein the driving head has an elastic body capable of pushing the control member to move in a direction of a locking position, the control member being in a release position And the elastic body moves the positioning member to move out of the positioning hole. A pneumatic tool for quickly adjusting and fixing a head angle according to claim 3, wherein the control groove includes a large diameter portion and a small diameter portion to form a class shape, the large diameter portion being adjacent to an outer circumference of the receiving portion The small diameter portion is adjacent to the inner circumference of the accommodating portion, and one end of the positioning member forms a card portion and a positioning portion is formed at the other end, and the card portion and the elastic member are located in the large diameter portion, the elasticity One end of the positioning member is inserted into the positioning hole, and the positioning portion of the positioning member is inserted into the positioning hole when the control member is in the locking position, the one end of the member is adjacent to the side of the small-diameter portion When the control member is in the release position, the positioning portion of the positioning member exits the positioning hole. A pneumatic tool for quickly adjusting and fixing a head angle according to claim 4, wherein the receiving portion is provided with a limiting flange and a limiting concave edge along an outer circumference of the second virtual transverse axis. The limiting flange and the limiting concave edge are not adjacent to each other, and a limiting ring is disposed in the limiting concave edge, the limiting ring protrudes from an outer circumference of the receiving portion, and the control member is located with the elastic body Between the limiting flange and the limiting ring, one end of the elastic body pushes against the limiting flange and the other end of the elastic body pushes the abutting portion of the control member. When the control member is in the locking position, One end of the control member abuts against the limiting ring, and the control member is disengaged from the limiting ring when the control member is in the releasing position. The pneumatic tool for quickly adjusting and fixing the head angle according to claim 5, wherein the control slot is provided with a steel ball, and the steel ball of the control groove is disposed at an end of the positioning member different from the handle, the control member In the locked position, the control member moves the positioning member by pushing the steel ball of the control slot. When the control member is in the release position, the dodging portion accommodates the steel ball of the control slot. A pneumatic tool for rapidly adjusting and fixing a head angle according to any one of claims 1 to 6, wherein the pivoting portion is provided with a first pivot hole along a radial direction of the first virtual cross shaft, the plurality of The distance between each of the positioning holes and the first pivot hole is the same, so that the plurality of positioning holes are arranged in an arc centered on the first pivot hole, and the receiving portion can accommodate the pivoting portion, the driving The accommodating portion of the head is pivotally disposed on the pivoting portion of the handle centering on the first pivot hole. A pneumatic tool for quickly adjusting and fixing a head angle according to claim 7, wherein the receiving portion forms a first ear along a radial side of the second virtual transverse axis and forms a different one on the opposite side. a second ear, the first ear and the second ear are respectively provided with a second pivot hole, and the second pivot hole of the first ear and the second pivot hole of the second ear are respectively provided with a screw. The screw of the first ear and the screw of the second ear are respectively screwed to different ends of the first pivot hole. A pneumatic tool for quickly adjusting and fixing a head angle according to claim 8, wherein the handle is fixed at a side of the pivot portion that is different from the positioning hole in a radial direction of the first virtual through-axis a hole, the fixing hole is sequentially provided with an elastic member and a steel ball from the inside to the outside, one end of the elastic member abuts against the bottom surface of the fixing hole and the other end pushes the steel ball of the fixing hole, and the driving head is in the capacity A plurality of fastening holes are disposed in the radial direction of the second virtual coaxial axis, and the distance between each of the plurality of fastening holes and the second pivot hole is the same, so that the plurality of fastening holes are The second pivot hole is arranged in an arc shape at the center, and the steel ball of the fixing hole can correspond to any one of the plurality of fastening holes and is pushed by the elastic member to be stuck in the fastening hole. A pneumatic tool for quickly adjusting and fixing a head angle according to claim 9, wherein the control slot is adjacent to the first ear, and the fastening hole is located at a side of the second ear adjacent to the first ear. A pneumatic tool for quickly adjusting and fixing a head angle according to claim 10, wherein the urging portion is annularly convex, and the dodging portion is annularly concave.