JPH1096416A - Torque adjustable support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a stable torque value, and facilitate manufacture by bringing a pad member into contact with the tail end of a push-pull sleeve by installing it on a periphery of a central rotary shaft, and screw-fitting, fastening and joining a fastening nut to a screw bar of the central rotary shaft. SOLUTION: A fastening nut 40 has an inside female screw corresponding to an outside male screw of a screw bar 14 of a central rotary shaft 10. After lubricating oil is applied to an inside hole of a push-pull sleeve 22 of a support bracket 20, a push-pull part 11 of the central rotary shaft 10 is inserted into the push-pull sleeve 22, and is brought into contact with a conical push-pull wall 24. Then, a pad member 30 is fixed to a periphery of the central rotary shaft 10, and is brought into contact with the tail end of the push-pull sleeve 22. Then, the fastening nut 40 is fastened to the screw bar 14 of the central rotary shaft 10 so as to become a prescribed torque value, and therefore, assembling is completed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kind of torque-adjustable support device, and more particularly, to a case, a cover, a door or other joints of a rotatably connected case, which is used as a hinge for smooth connection. It has a predetermined torque value, can effectively position an angle when rotating and opening, and can prevent the cover body from automatically rotating and closing.

[0002]

2. Description of the Related Art Generally, foldable electronic computers,
A case of a portable computer, a lid of a tool box or a door is connected to a main body or a door frame by a support device such as a hinge. One end of the support device is fixed to the main body on the stationary side, while the rotating shaft of the support device is fixed on a rotatable support bracket fixed to the cover plate on the active side. A disc-shaped elastic plate is sandwiched between the pad member and the rotating shaft for adjusting the torque value. A tightening nut is tightened to the end of the rotating shaft to tighten the components of the support device, thereby forming a complete hinge unit. The movable cover plate rotates relative to the stationary main body, and the disc-shaped elastic plate applies a predetermined torque to the support bracket by friction to produce a braking force, thereby fixing the rotational force of the cover plate.

The above-mentioned traditional hinge structure includes complicated components such as a pad member, a positioning plate, a disc-shaped elastic plate, and a tightening nut, which are required to have high precision. When rotating, the support bracket tends to drive all of the pad member, the positioning plate, and the disk-shaped elastic member to rotate and slip. Thus, a certain torque deviation of the hinge structure occurred after a period of use. Therefore, simplification of the procedure for assembling the hinge structure and stabilization of the torque value have been important in view of long-term use.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a kind of torque-adjustable supporting device which has a stable torque value and can be easily manufactured.

[0005] The present invention further provides a kind of torque adjustable, wherein the central axis of rotation of the support device and the support bracket are formed symmetrically, so that the central axis of rotation and the support bracket are combined in any direction. It is an object to provide a support device.

[0006]

According to the first aspect of the present invention, there is provided one central rotation shaft, at least one support bracket,
A torque adjustable support device comprising at least one pad member and at least one clamping nut,
The central axis of rotation comprises at least one tapered push-pull portion and a threaded bar at the smaller dimension of the push-pull portion, and the support bracket comprises a fixed portion and a peripheral conical push-pull wall. A push-pull sleeve formed with a bore formed therein, the pad member being formed with a bore having a cross-section that is the same shape as the cross-section of the threaded rod of the central rotating shaft;
The clamping nut is formed with an internal female thread corresponding to the external male thread of the threaded rod of the central rotary shaft, lubricating oil is applied to the wall around the push-pull sleeve of the support bracket, and the push of the central rotary shaft is performed. A puller is mounted in the push-pull sleeve and abuts the conical push-pull wall of its bore, and the padding is mounted about a central axis of rotation and abuts the distal end of the push-pull sleeve, and the tightening is performed. A nut-adjustable support device is provided in which a nut is screwed into a threaded rod of a central rotating shaft and is coupled by tightening.

According to a second aspect of the present invention, there is provided a torque-adjustable supporting device according to the first aspect, wherein the threaded rod of the central rotary shaft is formed together with at least one flat positioning surface.

According to a third aspect of the present invention, there is provided the torque-adjustable support device according to the first aspect, wherein the push-pull portion of the central rotary shaft has a partially conical push-pull surface.

According to a fourth aspect of the present invention, there is provided the torque-adjustable supporting device according to the first aspect, wherein the push-pull portion of the central rotary shaft is formed together with at least one annular groove.

According to a fifth aspect of the present invention, the push-pull portion of the central rotary shaft is formed with a plurality of shallow recesses for retaining lubricating oil. It is a supporting device that can adjust the torque.

According to a sixth aspect of the present invention, the push-pull sleeve of the support bracket is perpendicular to the axis and is not closed. I have.

According to a seventh aspect of the present invention, there is provided the torque-adjustable support device according to the first aspect, wherein the inner hole of the push / pull sleeve of the support bracket has a partially conical push / pull wall. I have.

The invention according to claim 8 is the torque-adjustable support device according to claim 1, wherein the push-pull sleeve of the support bracket is in a direction parallel to the axis and is not in a closed state. .

According to a ninth aspect of the present invention, there is provided the torque-adjustable support device according to the first aspect, wherein a wall around an inner hole of the push / pull sleeve of the support bracket is formed together with an oil holding groove.

According to a tenth aspect of the present invention, the push / pull surface of the push / pull sleeve of the support bracket corresponds to the push / pull surface of the push / pull portion of the central rotary shaft. It is a supporting device.

According to an eleventh aspect of the present invention, the central rotary shaft has an intermediate cylindrical portion and two conical push-pull portions on both sides, and the push-pull portion tapers from the intermediate cylindrical portion toward both sides of the central rotary shaft. 2. The torque adjustable support according to claim 1, wherein the inner bore of the push-pull sleeve has a peripheral conical push-pull wall corresponding to the conical push-pull of the central rotating shaft. Equipment.

According to a twelfth aspect of the present invention, there is provided the torque-adjustable supporting device according to the first or tenth aspect, wherein each push / pull portion of the central rotary shaft is replaced with a curved surface.

According to a thirteenth aspect of the present invention, there is provided the torque-adjustable support device according to the first or tenth aspect, wherein each push-pull portion of the central rotary shaft is replaced with a partially curved surface.

According to a fourteenth aspect of the present invention, each push / pull portion of the central rotating shaft has one curved surface, and the wall around the inner hole of the push / pull sleeve of the support bracket has a curved surface corresponding to the curved surface. The torque-adjustable support device according to claim 1 or claim 10, wherein the support device has torque adjustment.

According to a fifteenth aspect of the present invention, one recovery spring is mounted between two support brackets, and the recovery spring has two extended legs at two ends, and the recovery spring has two legs. 11 is mounted around the intermediate cylindrical portion of the central rotating shaft by respectively hanging on two opposite support brackets.
And a supporting device capable of adjusting the torque.

[0021]

DETAILED DESCRIPTION OF THE INVENTION The present invention is a kind of torque-adjustable support device having a stable torque value and being easily manufactured. The support device of the present invention includes a central rotation shaft, a support bracket, a pad member, and a tightening nut. The central rotating shaft has a tapered push-pull portion, a shaft bar, and a threaded bar, the shaft bar having a fixed plate having two parallel positioning surfaces, wherein the threaded bar is It has an outer male thread and two parallel positioning surfaces provided on the smaller diameter portion of the section.

The support bracket has a fixed part and a push / pull sleeve, which has a bore with a peripheral conical push / pull wall. Lubricating oil is applied to the wall around the inner hole of the push / pull sleeve of the support bracket, and the push / pull part of the central rotating shaft is installed in the push / pull sleeve and abuts the conical push / pull wall of the inner hole. .

The pad member is formed with an inner hole having the same cross section as the cross section of the threaded rod of the central rotation shaft.
The clamping nut is formed with an internal female thread corresponding to the external male thread of the threaded rod of the central rotating shaft. The padding is mounted about a central pivot and abuts the distal end of the push / pull sleeve, and the clamping nut is threadedly engaged with the threaded rod of the central pivot.

The invention further provides that the central rotation axis of the support device and the support bracket are formed symmetrically, so that the central rotation axis and the support bracket can be combined in any direction. By providing a suitable curved surface instead of a conical push-pull surface, the contact area between the inner hole of the support bracket and the central rotation axis is increased, and the strength against the tightening force of the tightening nut is increased, so that a greater strength is obtained. The torque can be set.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. The torque adjustable support device of the present invention includes a central rotating shaft 10, a support bracket
0, a pad member 30 and a tightening nut 40 are provided.

The central rotating shaft 10 has a conical push-pull unit 1.
The push / pull section 11 tapers to the left in this embodiment. The central rotating shaft 10 further has a shaft at one end thereof, the shaft having a fixing plate 12 having two parallel planes, and two screw holes 13 formed in the fixing plate 12. At the other end of the central rotating shaft 10 is provided a threaded rod 14 which is externally threaded and has two parallel positioning surfaces 15.

The support bracket 20 has a fixing portion 21 and a push-pull sleeve 22. The fixing part 21 has two screw holes 23. The conical inner bore of the push / pull sleeve 22 has a peripheral conical push / pull wall 24, the inclination of which is the push / pull part 1 of the central rotating shaft 10.
It is almost equal to one.

The pad member 30 is a conical member having a central inner hole 31 having the same cross-sectional shape as the cross-sectional shape of the threaded rod 14 of the central rotating shaft 10.

The tightening nut 40 has an internal female screw corresponding to an external male screw of the threaded rod 14 of the central rotary shaft 10.

After the lubricating oil is applied to the inner hole of the push / pull sleeve 22 of the support bracket 20, the center rotating shaft 10
The push / pull portion 11 is inserted into the push / pull sleeve 22 and abuts the conical push / pull wall 24. Then, the pad member 30 is fixed around the central rotation axis 10 and abuts the distal end of the push-pull sleeve 22. Then, the tightening nut 40 is tightened to the threaded rod 14 of the central rotating shaft 10 so as to have a predetermined torque value, whereby the assembly is completed.

FIGS. 3 and 4 show a second embodiment of the present invention.
In this embodiment, the push-pull section 11 of the central rotary shaft 10 has a conical push-pull surface 16 on the right and a cylindrical rod 17 on the left. Hence, the push-pull part 11 of the central rotary shaft 10 is characterized by the partial push-pull surface 16.

The inner bore of the push / pull sleeve 22 has a partially conical push / pull surface 26 corresponding to the partial push / pull surface 16 of the central rotary shaft 10.

FIGS. 5, 6, and 7 show the support bracket 2 of the present invention.
0 shows another embodiment, in which the push-pull sleeve 22a is not formed continuously, and the push-pull sleeve 22a can be elastically recovered when subjected to an axial pressure. ing. In FIG. 7, an oil holding groove 27 is provided on the inner wall of the push / pull sleeve 22 to hold oil, and the lubricating effect is enhanced.

FIG. 8 shows another embodiment of the central rotating shaft 10 of the present invention, in which the push / pull portion 11 is provided with a multiple annular groove 18 for holding oil.

In use, the support bracket 20 is pivotally connected to the cover plate. During the turning operation, the conical push-pull surface 16 tends to push the support bracket 20 sideways to the left. At this time, the support bracket 20 is
To prevent a zero, push-pull sleeve 22 tends to open outward. Therefore, the support bracket 20 can rotate around the central rotation axis 10 with the lowest frictional resistance. During rotation, the center of rotation is constant. In addition, even after prolonged use, the torque value remains stable and does not change, greatly improving the drawbacks of the known devices.

FIGS. 9 and 10 show a third embodiment of the present invention, which comprises a central rotating shaft 10 and a left support bracket 20.
a, right support bracket 20b, and two pad members 3
0, 30a, two tightening nuts 40, 40a, and a recovery spring 50 (see FIG. 10).

In the third embodiment, the central rotating shaft 10 is composed of an intermediate cylindrical portion 19 and two conical push-pull portions 1 on both sides thereof.
1, 11a. The two conical push-pull portions 11 and 11a are tapered from the intermediate cylindrical portion 19 toward both sides of the central rotation shaft 10. Two threaded rods 14 are further provided at both ends of the central rotating shaft 10, each threaded rod 14 being externally threaded and having two parallel positioning surfaces 15.

The support brackets 20a and 20b are
1 and a push-pull sleeve 22. The fixing part 21 is formed with two screw holes 23. The conical inner bore of the push-pull sleeve 22 has a peripheral conical push-pull wall 24 having the same inclination as the inclination of the conical push-pull part of the central rotating shaft 10.

Each of the pad members 30, 30a is a conical member and is formed with a central bore 31 having the same cross section as the cross section of the threaded rod 14 of the central rotary shaft 10.

Each tightening nut 40, 40 a is formed with an internal female screw corresponding to the external male screw of the threaded rod 14 of the central rotating shaft 10.

The recovery spring 50 has two outwardly extending feet 51, 52 at both ends.

Please refer to FIG. In combination, lubricating oil is applied to the wall around the inner hole of the push / pull sleeve 22 of the support brackets 20a, 20b, and then the push / pull portions 11, 11a of the central rotating shaft 10 are pushed
Installed inside. The recovery spring 50 is mounted around the intermediate cylindrical portion 19, and the feet 51, 52 of the recovery spring 50 are hung on the fixed portions of the left and right support brackets 20a, 20b.
The predetermined torque of the recovery spring 50 is greater than the adjustment torque between the two support brackets and the central rotation axis, so that when the two support brackets rotate relative to each other, they receive an automatic recovery force. Then, the pad members 30, 30a are mounted around the threaded rod of the central rotating shaft 10, and abut against the ends of the left and right support brackets 20a, 20b. Then, the tightening nuts 40 and 40a are screwed to the threaded rod of the central rotating shaft 10 to have a predetermined torque.

In use, both of the left and right support brackets are pivotally connected to the cover plate, and are used as a lock mechanism having no direction restriction.

FIG. 12 shows another embodiment of the central rotary shaft 10. Each push / pull portion 11 b of the central rotary shaft 10 in this embodiment has a curved surface 55. Depending on the installation of the curved surface 55, the left and right support brackets 20a,
The push / pull wall 24 around the inner bore of the push / pull sleeve 22 of 20b has a correspondingly curved surface, so that the contact area between the push / pull portion 11b and the push / pull sleeve 22 is increased and the torque is higher. Can be set to

FIG. 13 shows still another embodiment of the central rotary shaft 10. In the central rotary shaft 10 of this embodiment, the push-pull portion 11c has a first curved surface 56, a second curved surface 57, and a first curved surface 57. It has a push-pull slope 58 connected between the curved surface 56 and the second curved surface 57.

FIG. 14 shows still another embodiment of the central rotary shaft, in which each push-pull part is provided with each cylindrical part 1.
9a and 19b and a partially curved surface 59c.

[0047]

In conclusion, the central rotating shaft of the present invention has a push / pull portion rotatably mounted in the push / pull sleeve of the support bracket. The central rotation shaft is combined with a support bracket and tightened with a tightening nut to have a predetermined torque. The support device of the invention thus comprises fewer parts than is known and has a stable torque value even after prolonged use.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a first embodiment of the present invention.

FIG. 2 is a cross-sectional side view corresponding to FIG.

FIG. 3 is an exploded perspective view of a second embodiment of the present invention.

FIG. 4 is a combined side sectional view corresponding to FIG. 3;

FIG. 5 is a side view of another embodiment of the support bracket of the present invention.

6 is a partial cross-sectional side view of the support bracket of FIG. 5 of the present invention.

FIG. 7 is an enlarged sectional view of the support bracket of FIG. 6;

FIG. 8 is a side sectional view of another embodiment of the central rotating shaft of the present invention.

FIG. 9 is a combined perspective view of a third embodiment of the present invention.

FIG. 10 is an exploded perspective view of a third embodiment of the present invention, with a recovery spring added.

FIG. 11 is a combined axial sectional view of a third embodiment of the present invention, with a recovery spring added.

FIG. 12 is a side view of another embodiment of the central rotation shaft according to the third embodiment of the present invention.

FIG. 13 is a side view of still another embodiment of the central rotation shaft according to the third embodiment of the present invention.

FIG. 14 is a side view of still another embodiment of the central rotary shaft according to the third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Central rotation axis 20 Support bracket 30 Pad member 40 Tightening nut 11 Push-pull part 12 Fixing plate 13 Screw hole 14 Threaded rod 15 Positioning surface 16 Push-pull surface 17 Cylindrical rod 18 Multi-annular groove 19 Intermediate cylindrical part 21 Fixed part 22 Push / pull sleeve 23 Screw hole 24 Push / pull wall 26 Partial conical push / pull surface 27 Oil holding groove 31 Inner hole 22a Push / pull sleeve 20a Support bracket 20b Support bracket 30a Pad member 40a Tightening nut 50 Recovery spring 11a Push / pull unit 11b Push / pull unit 11c Push / pull part 51, 52 Foot 55 Curved surface 56 First curved surface 57 Second curved surface 58 Push / pull slope 19a, 19b Cylindrical part 59 Partially curved surface

Continued on the front page (71) Applicant 597034107 Chufat Chai Malaysia-Kota Tinji Johor 81900 Jalan Pedada Taman Kota Jaya Number 53 NO. 53, JALAN PEDADA TAMAN KOTA JAYA 81900 KOTA TINGGIJOHOR M ARASIA (72) Inventor Toshio Zhang Toshio, Taiwan Taoyuan County, Taituan Township China Road, No. 5-4, No. 5-4 (72) Inventor Lu Shisheng, Taiwan Taoyuan City Jurin 8 Street 19 Street 2 7 No.

Claims (15)

[Claims] 1. A torque-adjustable support device comprising one central pivot, at least one support bracket, at least one pad member, and at least one clamping nut, wherein the central pivot is at least A tapered push-pull portion and a threaded rod at the small end of the push-pull portion, wherein the support bracket is formed with a fixed portion and a bore having a peripheral conical push-pull wall. A push-pull sleeve, the pad member being formed with an inner bore having a cross-section that is the same shape as the cross-section of the threaded rod of the central rotating shaft, the tightening nut being formed on the outer side of the threaded rod of the central rotating shaft. Formed with an internal female thread corresponding to the male thread, lubricating oil is applied to the wall around the push / pull sleeve of the support bracket, and the push / pull portion of the central rotating shaft is inserted into the push / pull sleeve. Being mounted and abutting against the conical push and pull wall of its bore, the pad member being mounted around a central axis of rotation and abutting against the end of the push and pull sleeve, and the clamping nut being threaded rod of the central axis of rotation. A torque-adjustable support device that is screwed together and tightened to connect. 2. The torque-adjustable support device according to claim 1, wherein the threaded rod of the central rotating shaft is formed with at least one flat positioning surface. 3. The torque-adjustable support device according to claim 1, wherein the push / pull portion of the central rotation shaft has a partially conical push / pull surface. 4. The torque-adjustable support device according to claim 1, wherein the push-pull portion of the central rotating shaft is formed with at least one annular groove. 5. The torque adjustable according to claim 1, wherein the push-pull portion of the central rotary shaft is formed with a plurality of shallow recesses for retaining lubricating oil. Support device. 6. The push-pull sleeve of the support bracket,
The torque adjustable support device according to claim 1, wherein the support device is not closed in a direction perpendicular to the axis. 7. The torque-adjustable support device according to claim 1, wherein the inner hole of the push-pull sleeve of the support bracket has a partially conical push-pull wall. 8. The push-pull sleeve of the support bracket,
The torque adjustable support device of claim 1, wherein the support device is in a direction parallel to the axis and is not closed. 9. The torque-adjustable support device according to claim 1, wherein a wall around an inner hole of the push-pull sleeve of the support bracket is formed with an oil retaining groove. 10. The torque-adjustable support device according to claim 1, wherein the push / pull surface of the push / pull sleeve of the support bracket corresponds to the push / pull surface of the push / pull portion of the central rotary shaft. 11. A central rotary shaft comprising an intermediate cylindrical portion and two conical push-pull portions on both sides, wherein the push-pull portion is tapered from the intermediate cylindrical portion toward both sides of the central rotary shaft. 2. The torque-adjustable support device according to claim 1, wherein the inner bore of the sleeve has a peripheral conical push-pull wall corresponding to the conical push-pull portion of the central rotating shaft. 12. The torque-adjustable support device according to claim 1, wherein each push / pull portion of the central rotation shaft is replaced with a curved surface. 13. The torque-adjustable support device according to claim 1, wherein each push / pull portion of the central rotation shaft is replaced by a partially curved surface. 14. The push / pull portion of the central rotating shaft has one curved surface, and the wall around the inner hole of the push / pull sleeve of the support bracket has a curved surface corresponding to the curved surface. The torque adjustable support device according to claim 1 or claim 10. 15. A recovery spring mounted between two support brackets, said recovery spring having two extended feet at two ends, said recovery spring having its feet opposite. The torque-adjustable support device according to claim 10, wherein the support device is mounted around an intermediate cylindrical portion of a central rotation shaft by hanging the support brackets on the respective support brackets.