TWI465663B - Rotation device - Google Patents

Description

Rotating device

The invention relates to a rotating device, in particular to a rotating joint having a joint at each end for respectively connecting two other objects and making the two other objects relatively rotatable.

The application products of the conventional universal joints, such as the foot massage machine of Taiwan Patent No. M320898, the locomotive rear view mirror of M318543 and the shower head device of M271537, are all part of the products by using the universal joint. It can be rotated relative to another part. The universal joint includes a ball disposed in a cylinder, the ball can be rotated in the cylinder, and the ball body itself or other elastic body is used to tighten the ball to achieve the effect of fixing the ball. However, such a fixed manner is caused by the compression of the cylinder itself or the other elastic body, and the long-term operation tends to make the pressing effect less than expected, and the effect of fixing the sphere cannot be achieved.

In addition, there is a conventional universal joint, such as shown in Taiwan Patent No. M371615, M336119, which includes an adapter, a receiving cylinder, a set of adapters and a latch. The socket has opposite holes for receiving the pin. The socket is pressed against the two sockets of the socket to limit the movement of the bolt. The adapter defines a universal hole, and the diameter of the plug is smaller than the diameter of the universal hole, so that the adapter can rotate in different directions with respect to the receiving cylinder. The universal joint utilizes one of the abutting members located in the receiving cylinder to resist the movement of the adapter, so that the adapter can be freely rotated without being subjected to a force to achieve a fixed effect. The socket of the universal joint of the type and the abutting member are prone to loosening under repeated application of force.

The invention provides a rotating device comprising a ball body, an adapter portion, two supporting members and a positioning assembly. A plurality of pits are formed on the surface of the sphere. The adapter portion is disposed on the ball body, and has two side arms respectively formed at two ends of the adapter portion, the two side arms facing each other and located on two sides of the ball body. The adapter further includes a chamber for receiving the positioning assembly, the chamber having an opening facing the ball. The two support members are respectively disposed on the two side arms, and each support member includes a first spacer. One side of the first spacer defines a concave curved surface that matches the surface of the sphere, the concave curved surface abutting the surface of the sphere for engaging the sphere on the two sides of the arm between. The positioning assembly includes a block and a spring. The block is movably disposed in the chamber of the adapting portion, and one end of the block is a convex arc surface extending into any of the pits on the surface of the ball. The spring is disposed in the chamber to push the end of the block to protrude from the opening of the cavity, so that the block can be caught in any of the pits on the surface of the ball to achieve the positioning effect.

In summary, the rotating device of the present invention is fixed in such a manner that the ball is clamped between the two side arms by using two first spacers disposed on the arms on both sides of the adapter portion, and the positioning is utilized. The block of the component snaps into the recess of the surface of the ball to achieve a further positioning effect, so that the ball and the adapter are relatively fixed.

Preferably, the rotating device further includes a first connector and a second connector respectively disposed on the ball and the adapter for connecting a first device and a second device. The rotating device can be used as a rotary joint.

Compared with the prior art, the rotating and fixing manner of the rotating device of the present invention can effectively solve the problem that the fixing member can be loosened by long-term use.

Other inventive aspects and more detailed technical and functional descriptions of the present invention are disclosed in the following description.

1 to 4 are views showing a first preferred embodiment of the rotating device 1 of the present invention. The rotating device 1 includes a ball 2, an adapter portion 3, two support members 4, and a positioning assembly 5. A plurality of dimples 20 are formed on the surface of the sphere 2. The adapter portion 3 is disposed on the ball 2, and both ends of the adapter portion 3 have two side arms 31. The two side arms 31 face each other and are located on both sides of the ball body 2, and the two side arms 31 each define a consistent through hole 310, and the two through holes 310 face each other. The adapter portion 3 further defines a chamber 30 for receiving the positioning assembly 5, the chamber 30 having an opening 300 facing the ball 2. Preferably, the chamber 30 of the adapter portion 3 is located at a central position of the adapter portion 3, but is not limited thereto.

Preferably, the adapter portion 3 defines a concave curved surface 32 matching the surface of the spherical body 2 on one side of the spherical body 2 for relative rotation between the spherical body 2 and the adapter portion 3. Smoother, but not limited to this.

The two supporting members 4 are respectively disposed on the two sides of the arm 31 and face each other. Each of the supporting members 4 includes a first spacer 41, and one side of the first spacer 41 is defined to match the surface of the spherical body 2. The concave surface of the first spacer 41 is attached to the surface of the spherical body 2 by the concave curved surface. Therefore, it is possible to effectively prevent the ball 2 and the adapter portion 3 from being loosened during the rotation.

Preferably, in the embodiment, each support member 4 further includes a rod 42 and a spring 43 disposed in the through hole 310 corresponding to the side arm 31. The center of the first spacer 41 further includes a hole 410. One end of the rod 42 passes through the spring 43 and extends through the opening of the through hole 310 into the hole 410 of the first gasket 41. The spring 43 is located between the rod 42 and the first gasket 410 for pushing the gasket 41 toward the sphere 2 for better bonding, but is not limited thereto. The other end of the rod 42 further includes a coupling member 420 that is screwed to the other end of the through hole 310.

The positioning assembly 5 includes a block 51 and a spring 52. The block 51 is movably disposed in the chamber 30 of the adapter portion 3, and one end 510 of the block 51 is a convex arc surface. The spring 52 is disposed in the cavity 30 for pushing against the opening 300 of the block 51 protruding from the cavity 30, so that the end 510 of the block 51 can be caught in any concave surface of the ball 2 Pit 20.

Preferably, the rotating device 1 further includes a first connector 6 and a second connector 7. The first connector 6 is disposed on the ball 2 for connecting to a first device, and the second connector 7 is disposed on the first connector 6 The adapter 3 is used to connect a second device. The outer wall surface of the first joint 6 and the second joint 7 is further threaded to facilitate the connection, but is not limited thereto. Therefore, the first and second devices can be connected to each other by the rotating device 1 and can be freely rotated.

Preferably, the chamber 30 of the adapter portion 3 extends and extends through the second joint 7. The positioning assembly 5 is located in the chamber 30, and further includes a blocking member 53. The second joint 7 is engaged for the spring 52 to abut, but is not limited thereto.

As shown in the second figure, when the rotating device 1 is in a fixed state, the end 510 of the block 51 of the positioning assembly 5 protrudes from the opening 300 of the chamber 30 of the adapter portion 3, and The corresponding recess 20 of the ball 2 is extended to achieve a fixing effect. At this time, the spring 52 of the positioning assembly 5 is in an uncompressed original state.

As shown in the third figure, when the rotating device 1 is rotated, the block 51 is moved outside the pit 20 by the convex curved surface of the end 510. At this time, the spring 52 that abuts the block 51 is compressed by the abutment of the ball 2. As shown in the fourth figure, when the blocks 51 are moved to the other dimples 20 with the rotation of the rotating device 1, the blocks 51 are pushed by the elastic force accumulated by the spring 52. In the pit 20, a fixed effect is achieved.

In summary, when the rotating device 1 is in a fixed state, the spring 52 is in an uncompressed original state, and the long-term use does not cause the elastic fatigue of the spring 52, effectively solving the elastic component on the existing universal joint. It is easy to shorten the life of the universal joint due to the elastic fatigue caused by long-term compression.

5 and 6 are schematic views showing a second preferred embodiment of the present invention, and the components of the second embodiment are substantially the same as the first embodiment. In the second embodiment, the positioning component 5 of the rotating device 1a further includes a second spacer 54 that is disposed on the adapter portion 3. One side of the second spacer 54 defines a concave curved surface 541 matching the surface of the spherical body 2, and the concave curved surface 541 is used instead of the concave curved surface 32 of the adapter portion 3 in the first embodiment. In order to make the relative rotation between the ball 2 and the adapter 3 smoother. The second spacer 54 further defines a hole 540 through which the end 510 of the block 51 is inserted into any of the pockets 20 of the ball 2.

In addition, in the embodiment, the ball 2 of the rotating device 1a further has a plurality of arcuate grooves 21 respectively located between the dimples 20. The depth of the arcuate grooves 21 is slightly smaller than the depth of the dimples 20, and the movement of the end 510 of the blocks 51 can be guided, further causing the ball 2 and the adapter 3 to rotate during the rotation. Less easy to loose.

7 and 8 are schematic views showing a third preferred embodiment of the present invention, and the components of the present embodiment are substantially the same as those of the foregoing embodiment. The rotating device 1b of the present embodiment further includes two other positioning members 5b disposed in the through holes 310 of the two side arms 31 to replace the two supporting members 4 originally disposed in the through holes 310. Each positioning component 5b includes a block 51b, a spring 52b, a blocking member 53b and a second spacer 54b. The block 51b, the spring 52b and the stop 53b are substantially the same as those of the above embodiment, and will not be further described herein. One side of the second spacer 54b defines a concave curved surface matching the surface of the spherical body 2, and can be abutted against the surface of the spherical body 2 by the concave curved surface, which is equivalent to the above embodiment. The first spacer 41 can effectively prevent the ball 2 and the adapter portion 3 from being loosened during the rotation.

The ninth drawing shows a schematic view of the rotary device 1 of the present invention applied to an actual product. The product is a luminaire 8 which uses two rotating devices 1, but is not limited thereto. The lamp 8 includes a lamp holder 81, two lamp arms 82, 82a and a lamp cover 83. The first joint 6 of one of the rotating devices 1 is assembled with the lamp arm 82a, and the second joint 7 of the rotating device 1 is assembled with the lamp arm 82. Thus, the two lamp arms 82, 82a can be rotated relative to each other by the rotating device 1. Furthermore, the first joint 6 of the other rotating device 1 is assembled with the lampshade 83, and the second joint 7 of the rotating device 1 is assembled with the lamp arm 82a. Thus, the lamp cover 83 and the lamp arm 82a can be rotated relative to each other by the other rotating device 1.

In any event, anyone can obtain sufficient teaching from the description of the above examples, and it is understood that the present invention is indeed different from the prior art, and is industrially usable and progressive. It is the invention that has indeed met the patent requirements and has filed an application in accordance with the law.

1, 1a, 1b. . . Rotating device

2. . . Sphere

20. . . Pit

twenty one. . . Curved groove

3. . . Adapter

30. . . Room

300. . . Opening

31. . . Side arm

310. . . Through hole

32. . . Concave curved surface

33. . . Ontology

4. . . supporting item

41. . . First gasket

410. . . hole

42. . . Rod

420. . . Joint piece

43. . . spring

5, 5b. . . Positioning component

51, 51b. . . Block

510. . . One end

52, 52b. . . spring

53, 53b. . . Stop

54, 54b. . . Second gasket

540. . . hole

541. . . Concave curved surface

6. . . First joint

7. . . Second joint

8. . . Lamp

81. . . Lamp holder

82, 82a. . . Lamp arm

83. . . lampshade

The first figure shows an exploded perspective view of a first preferred embodiment of the present invention.

The second drawing shows a cross-sectional view of the fixed state of the preferred embodiment.

The third figure shows a cross-sectional view of the rotated state of the preferred embodiment.

Figure 4 is a cross-sectional view showing another fixed state of the preferred embodiment.

Fig. 5 is a perspective exploded view showing a second preferred embodiment of the present invention.

Figure 6 is a cross-sectional view showing the preferred embodiment.

Figure 7 is a perspective exploded view showing a third preferred embodiment of the present invention.

Figure 8 is a cross-sectional view showing the preferred embodiment.

Figure 9 is a schematic view showing a preferred embodiment of the present invention applied to a product.

1. . . Rotating device

2. . . Sphere

20. . . Pit

3. . . Adapter

30. . . Room

300. . . Opening

31. . . Side arm

310. . . Through hole

4. . . supporting item

41. . . First gasket

410. . . hole

42. . . Rod

420. . . Joint piece

43. . . spring

5. . . Positioning component

51. . . Block

510. . . One end

52. . . spring

53. . . Stop

6. . . First joint

7. . . Second joint

Claims (6)

A rotating device includes: a ball having a plurality of pits formed on a surface thereof; an adapting portion disposed on the ball, the two ends of the adapting portion having two side arms facing each other, the two arm systems Located on two sides of the sphere and respectively defining a continuous perforation, the two through holes respectively have an aperture, the two apertures face each other, the adapter further defines a chamber having one of the facing surfaces An opening; two support members are respectively disposed on the two side arms and face each other, each support member includes a first spacer, a rod and a spring; one side of the first spacer defines a hole and The surface of the sphere is matched with a concave curved surface which abuts against the surface of the sphere; one end of the rod is disposed in the corresponding through hole, and the other end protrudes from the opening of the through hole And a spring is disposed in the through hole for pushing the first gasket toward the ball; and a positioning component includes a block and a spring; the block The movable portion is movably disposed in the chamber, and one end of the block is a convex arc surface; the spring is disposed on the Reception chamber for pushing the card protrudes block the opening of the chamber, so that the end of the card into the card to block any of the sphere of a pit. The rotating device of claim 1, further comprising a first connector and a second connector, wherein the first connector is disposed on the ball, and the second connector is disposed on the adapter, the first The connector is for connecting a first device, and the second connector is for connecting a second device. The rotating device of claim 1, wherein the surface of the ball is further formed with a plurality of arcuate grooves connecting the pits. A rotating device according to any one of claims 1-3, wherein The adapter portion defines a concave curved surface matching one side of the sphere facing the side of the sphere. The rotating device according to any one of claims 1 to 3, further comprising a second spacer disposed on the adapter portion, one side of which is defined to be opposite to the surface of the sphere Matching one of the concave arc surfaces, and the second gasket is in contact with the surface of the sphere. The rotating device of claim 5, wherein the second spacer further defines a hole through which the end of the card passes to engage in any of the pockets of the ball.