CN201322042Y - Rotating shaft structure - Google Patents

Abstract

The utility model relates to a rotating shaft structure, it is formed by a pivot, a support, a plurality of friction discs, an at least conjunction, a cam component, an at least elastomer, and an end seal combination. Wherein, a horizontal plate is arranged between the upright frame piece and the joint part of the bracket, and the surface of the horizontal plate is provided with at least one positioning groove; the horizontal plane at the bottom of the first combination piece is radially provided with an inserting groove, and the fixing piece of the cam component radially extends out of an inserting tenon which is sleeved with the inserting groove and inserted into the positioning groove for positioning; when the pivot rotates, the friction plates can synchronously act on two sides of the upright frame plate, two sides of the first connecting piece and two sides of the fixing piece of the cam component to form a plurality of friction surfaces, so that the friction torque is improved, and the problems that the upright frame plate of the bracket is not high enough and cannot be combined are solved.

Description

Shaft structure

technical field

The utility model relates to a rotating shaft structure, in particular to a rotating shaft structure which can greatly increase the frictional torsion force through the arrangement of at least one coupling piece, a plurality of friction plates and a cam member.

Background technique

Consumer electronic products with a flip cover, such as portable computers, electronic dictionaries, portable audio-visual playback devices, and flip-top mobile phones, etc., basically, the main body is placed in the lower half, and the upper part is connected to the upper part through the rotating shaft. The half covers are connected so that the cover can be opened and closed relative to the main body. Therefore, the rotating shaft is also a major factor in determining the quality of the above-mentioned products.

And in order to make the main body and the cover of the aforementioned electronic product have the function of automatic locking, therefore, the related industry adds a group of concave and convex positioning blocks in the structure of the rotating shaft, so that the positioning concave part and the positioning concave part arranged oppositely through the joint surface between the two positioning blocks The butt joint of the positioning protrusions has the effect of automatic locking when the two are within a preset angle. For example, China Taiwan Patent Publication No. M293653 patent case discloses a "hub", which is respectively placed on the rod body of the rotating shaft with a plurality of friction pads, and is respectively located on the two sides of the fixed seat sleeved on the rod body. One end of a friction pad is provided with a concave positioning block and a convex positioning block, and the upper and lower sides of the concave and convex positioning blocks are respectively provided with a positioning concave part and a convex part to obtain an automatic locking effect. In addition, a fixed piece is placed on the rod body and clamped on the positioning column of the concave positioning block passing through the extension piece for fixing, and two friction plates are placed on the rod body and arranged at one end of the fixed piece. Since the two ends of each friction pad and the extension piece of the fixed seat have friction surfaces, the two ends of the friction pad, the convex positioning block and the concave positioning block have friction surfaces respectively, and the two ends of the friction pad, the friction pad and the fixed plate have friction surfaces respectively. Friction surface to increase friction torque.

Therefore, this case uses six friction surfaces formed by the friction pad and the fixed seat, the friction pad and the concave and convex positioning blocks, and the fixed piece and the friction pads on both sides to increase the friction torque and make the cover The body achieves a good lift-off positioning effect relative to the main body.

However, the above-mentioned hinge device has a considerable height because the extension piece of the fixed seat has a considerable height, so that a positioning groove can be opened, and the positioning column extending axially for the concave positioning block can pass through and stretch out the positioning groove, and on the extension piece The other side is provided for the clamping of the clamping groove at the bottom of a fixed piece. When the assembly space of the rotating shaft structure is limited, that is, the height of the extension piece must be shortened, the prior art cannot provide the effect that the positioning post of the concave positioning block can be combined with the fixing piece. Therefore, how to ensure a rotating shaft structure with multiple friction surfaces while the assembly space is limited is a difficult problem to be overcome urgently by the relevant industry.

Utility model content

The main purpose of the utility model is to provide a rotating shaft structure, which is radially fixed on the horizontal plate of the bracket through the cam member and at least one connecting piece, so as to solve the problem that the vertical frame of the bracket is not high enough to provide a combination, and through The combination sheet is set to increase the friction surface to improve the friction torque.

In order to achieve the aforementioned purpose, the technology adopted by the utility model is to provide a rotating shaft structure, which includes:

a pivot axially extending a shaft that passes sequentially through an upright frame of a bracket, a friction plate, a first coupling member, a friction plate, a cam member engaged by the fixed member and the rotating member , and at least one elastic body, the joint part of the free end of the shaft is combined with an end seal to form an axially tight shaft structure; wherein, the pivot and the bracket are respectively provided with a joint part and a joint part , and the joint surface of the fixed part and the rotating part is oppositely provided with a positioning convex part and a positioning concave part;

Wherein, there is a horizontal plate between the upright frame piece and the joint part of the bracket, and at least one positioning groove is opened on its surface; an insertion groove is opened radially on the horizontal surface of the bottom of the first coupling piece, and the fixed piece of the cam member is radially opened. A mortise is protruded, and the mortise is inserted into the insertion groove and positioned in the positioning groove; when the pivot rotates, these friction plates can be made to move synchronously, and form a fixed contact element with the adjacent ones respectively. friction torque.

Another technique adopted by the utility model is to provide a rotating shaft structure, which includes:

a pivot axially extending a shaft that passes sequentially through an upright frame of a bracket, a friction plate, a first coupling member, a friction plate, a cam member engaged by the fixed member and the rotating member , at least one elastic body, a friction plate, a second coupling piece, and a friction plate, combine the joint portion of the free end of the shaft with an end seal to form an axially tight shaft structure; wherein, The pivot and the bracket are respectively provided with a joint part and a joint part, and the joint surface of the fixed part and the rotating part is provided with a positioning convex part and a positioning concave part oppositely;

Wherein, there is a horizontal plate between the upright frame piece and the joint part of the bracket, and a plurality of positioning grooves are provided on its surface; an insertion groove is radially provided on the horizontal surface of the bottom of the first coupling part, and the fixing part of the cam member extends radially. A mortise is provided, the mortise is inserted into the insertion groove, and is inserted into the corresponding positioning groove to be positioned; Positioned in the positioning slot provided; when the pivot rotates, these friction plates can be made to act synchronously, and respectively form friction torque with the adjacent fixed contact elements.

The beneficial effect of the utility model is that, through the implementation of the utility model, the effect obtained is that the radially extending tenon of the fixing part of the cam member and the radially protruding tenon of the second coupling part are inserted respectively. In the positioning groove provided by the horizontal plate of the bracket, the first coupling part is plugged and positioned on the fixed part through its insertion slot, so as to reduce the overall height of the rotating shaft structure, so as to respond to the change of the assembly space of the electronic product, and to be able to Applied to "light, thin, short and small" electronic products. Furthermore, the utility model increases the friction surface by arranging the first coupling part and the second coupling part, as well as the friction plates on both sides, so as to enhance the torsion force. The friction surfaces occur on: both sides of the upright frame, both sides of the first joint, both sides of the fixed part of the cam member, and both sides of the second joint, forming eight friction planes in total, so that the friction torque can be improve. In addition, each friction plate and the adjacent fixed contact elements are designed with oil holes, which can provide the best lubrication effect, thereby greatly increasing the service life of the shaft structure.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the utility model rotating shaft structure;

Fig. 2 is a three-dimensional exploded view of another perspective of the utility model;

Figure 3a and Figure 3b are three-dimensional views of two different viewing angles after the assembly of the rotating shaft structure of the present invention;

Fig. 4 is the line A-A sectional view of Fig. 3 a;

Fig. 5 is the plan view after the utility model is assembled;

FIG. 6 is a cross-sectional view of line B-B in FIG. 5 .

Detailed ways

As shown in Figures 1 to 3b, basically, the shaft structure of the present utility model is composed of a pivot 1, a bracket 2, a plurality of friction plates 3, a first coupling 4, a cam member 5, at least one elastic The body 6, a second joint 7, and an end seal 8 are combined.

Wherein, the pivot 1 is a rod body, which is composed of an axially extending shaft rod 11 and an engaging portion 12. The shaft rod 11 is a rod body with a non-circular cross-section, so as to be compatible with a plurality of friction plates 3 described later. and the rotating part 52 of the cam member 5, so that these elements can rotate synchronously with the shaft 11. Furthermore, the free end of the shaft 11 has a coupling portion 111 , such as a threaded section, which is combined with the end seal 8 described later, so that the components socketed by the shaft 11 cannot axially escape.

The connecting portion 12 is connected with the cover of the electronic product. As shown in FIGS. For example, after the screw passes through, it is directly or indirectly locked to the cover body. However, the connection method of the connecting portion 12 is not limited to the aforementioned screw connection, and it can also be a polygonal cylinder so as to be directly inserted into the predetermined hole of the cover body, which also belongs to the category of the present invention.

The bracket 2 is a frame body, and its upright frame piece 21 defines a shaft hole 211 in the axial direction for the shaft 11 to pass through. The periphery of the shaft hole 211 is provided with a plurality of annularly arranged oil holes 212 to provide lubrication. It can be clearly observed from FIG. 1 and FIG. 2 that the height of the upright frame piece 21 is relatively short, and cannot be inserted and fixed by the axial direction of the cam member 5 . In addition, a horizontal plate 22 is axially extended from the bottom of the upright frame 21, and a joint portion 23 is integrally extended on its side, such as a plate that is inclined upward and then extends straight. The joint portion 23 is fixed to the main body of the electronic product , it is provided with at least one joint hole 231, so as to use existing joint elements, such as screws, to be directly or indirectly locked to the main body after passing through, but the joint mode of the joint part 23 and the main body is not limited thereto. It can also be connected in a plug-in manner, which also belongs to the category of the present utility model.

And the creative feature of this support 2 is that, this horizontal plate 22 radially offers a plurality of positioning grooves 221, so that the cam member 5 and the second binding member 7 of narration are inserted and fixed, so that the rotating shaft structure of the present utility model has Advantages of reduced height.

The friction plate 3 is a copper plate, which is arranged on both sides of the first coupling part 4, and respectively adjacent to the upright frame piece 21 and the fixing part 51 of the cam member 5; and on both sides of the second coupling part 7, and adjacent to each other On the elastomer 6 and the end seal 8. Wherein, each friction plate 3 is traversed by the shaft rod 11 and can move accordingly, so that these friction plates 3 respectively form friction torque with the aforementioned adjacent fixed contact elements. In order to provide a further lubricating effect, a plurality of oil holes 31 are provided on the periphery of each friction plate 3 to accommodate lubricating oil.

The first coupling piece 4 is a bent piece, and its vertical surface is axially provided with a center hole 41 for the shaft rod 11 to pass through, and its bottom horizontal surface is radially provided with an insertion slot 42. In addition, the center hole of the first coupling piece 4 There are also a plurality of oil holes 411 arranged in a ring around the 41 to accommodate lubricating oil, so as to form a better lubricating effect with the adjacent friction plates 3 .

The cam member 5 is formed by butting a fixed piece 51 and a rotating piece 52. The fixed piece 51 and the rotating piece 52 are respectively provided with a round hole 511 and a through hole 521 in the axial direction, so that the shaft rod 11 can pass through respectively, and the through hole 522 The shape is corresponding to the shaft 11 so that it can act synchronously with the shaft 11 . Furthermore, a positioning convex portion 512 and a positioning concave portion 522 are provided opposite to the joint surface of the fixing component 51 and the rotating component 52 , so that the two components are engaged in an unoperated state.

Wherein, a tenon 513 protrudes radially from the bottom of the fixing member 51, the first coupling member 4 is inserted and positioned in the tenon 513 by the insertion groove 42, and the fixing member 51 is embedded in the positioning groove 221 by the tenon 513 , the first coupling part 4 and the cam member 5 are arranged on one side of the upright frame piece 21 .

The elastic body 6 is sleeved on the shaft 11 so that the rotating member 52 can move axially on the shaft 11 . When the elastic body 6 is implemented, as shown in the figure, it is a disc-shaped shrapnel, but it is not limited thereto. It can be a wave-shaped shrapnel or a spring, and the same effect can also be obtained.

The second coupling member 7 is also a bent piece, and a through hole 71 is axially defined on its vertical surface for the shaft 11 to pass through, so as to support the shaft 11 . Two joints 72 protrude radially downward from the horizontal surface of the bottom of the second connecting member 7 , so as to be respectively inserted into the preset positioning grooves 221 of the horizontal plate 22 for positioning. In addition, a plurality of oil holes 711 arranged in an annular arrangement are formed around the through hole 71 of the second coupling member 7 to accommodate lubricating oil so as to form a better lubricating effect with the adjacent friction plates 3 .

The end seal 8 is combined with the joint portion 111 of the shaft 11 , and is used to standardize the various components before being exposed so that it will not come out of the shaft 11 . The end seal 8 is an anti-loosening nut when implemented.

In particular, in order to limit the opening and closing angle of the pivot shaft 1, a stopper 213 protrudes around the center hole 211 of the upright frame 21, and a stopper 213 protrudes radially from the middle section of the shaft rod 11. The member 13, such as a fan-shaped protrusion, can touch the stopper 213 through its two end edges, so as to limit the angle of closing and unfolding.

Please refer to Fig. 1 to Fig. 3b again. When the utility model is assembled, the shaft rod 11 of the pivot shaft 1 passes through the bracket 2, a first friction plate 3, a first coupling member 4, and a second friction plate 3 in sequence. , a cam member 5 combined by a fixed part 51 and a rotating part 52, at least one elastic body 6, a third friction plate 3, a second coupling part 7, and a fourth friction plate 3, and the shaft 11 is free The joint portion 111 of the end is combined with an end seal 8 to complete the shaft structure as shown in Fig. 3a and Fig. 3b.

As shown in Figure 4 and Figure 6, it is a sectional view taken along the line A-A and line B-B of Figure 3a and Figure 5 respectively, and these figures mainly disclose the adjacency relationship of the components connected in series by the shaft rod 11, and the After the insertion groove 42 of the first coupling member 4 is socketed with the tenon 513 of the fixing member 51 , it is respectively inserted into the positioning groove 221 with the tenon 72 of the second coupling member 7 for positioning. Therefore, when the pivot 1 rotates, the friction plate 3 linked with the pivot 1 can be combined with the fixing part 51 on the bracket 2, the second connecting part 7, and the first connecting part combined on the fixing part 51. 4 Turn the friction to increase the friction torque. Wherein, the width of the tenon 513 and the tenon 72 corresponds to the width of the positioning groove 221 to be inserted, so as to avoid shaking of these components when the pivot 2 rotates; The inserted positioning groove 221 moves axially, which is beneficial to the torque adjustment of the rotating shaft structure.

What the utility model discloses is a kind of preferred embodiment, for example, all partial changes or modifications derived from the technical thought of the utility model and those who are familiar with the art are easy to infer, all of which do not depart from the utility model scope of patent rights.

Claims (14)

1. turning shaft structure, it comprises:

One extends axially the pivot of an axostylus axostyle, this axostylus axostyle passes through the vertical type shelf sheet, a friction plate, one first conjunction, a friction plate, one of a support in regular turn by cam member that fixed block and revolving part engaged, and behind at least one elastomer, the free-ended connecting part of this axostylus axostyle is combined with an end sealing, to form the turning shaft structure of an axial packing; Wherein, this pivot and support are respectively equipped with a convergence part and a joining portion, and relative positioning convex portion and the location indentations of being provided with the mating face of revolving part of fixed block;

It is characterized in that having a horizontal web between the vertical type shelf sheet of this support and joining portion, at least one locating slot is offered on its surface; This first conjunction bottom water planar radial is offered an inserting groove, and the fixed block of this cam member extends radially out a plug tenon, this plug tenon socket inserting groove, and be plugged in the locating slot and locate; When pivot rotates, can make these friction plate synchronization motions, and be adjacent the contact member formation friction torsion that is fixing respectively.

2. turning shaft structure as claimed in claim 1 is characterized in that, the width of this plug tenon is corresponding to the width of locating slot, and this plug tenon can move axially in this locating slot.

3. turning shaft structure as claimed in claim 1 is characterized in that, each friction plate and adjacent vertical type shelf sheet, one first conjunction, and the approximal surface of the fixed block of cam member is provided with the oilhole of arranging in the form of a ring respectively.

4. turning shaft structure as claimed in claim 1 is characterized in that, this elastomer is to be selected from dish-shaped shell fragment, spring or waveform splinter.

5. turning shaft structure as claimed in claim 1, it is characterized in that this support is adjacent to the axis hole peripheral process of pivot and establishes a block, and this axostylus axostyle is to should the stop location radially prominent stop member of establishing, two ora terminalis by this stop member touch this block, with the restriction as the folding angle.

6. turning shaft structure as claimed in claim 1 is characterized in that the lamellar body of axostylus axostyle opposite end is located in the convergence part of this pivot, and it radially offers at least one attachment hole; And the joining portion of this support is the lamellar body by the horizontal web side extending, and it radially offers at least one conjugate foramen.

7. turning shaft structure as claimed in claim 6 is characterized in that, this joining portion is to extend the also lamellar body of straight extension that is inclined upwardly by this horizontal web side one.

8. turning shaft structure, it comprises:

One extends axially the pivot of an axostylus axostyle, this axostylus axostyle passes through the axis hole, a friction plate, one first conjunction, a friction plate, of the vertical type shelf sheet of a support in regular turn by the cam member that fixed block and revolving part engaged, at least one elastomer, a friction plate, one second conjunction, and one behind the friction plate, the free-ended connecting part of this axostylus axostyle is combined with an end sealing, to form the turning shaft structure of an axial packing; Wherein, this pivot and support are respectively equipped with a convergence part and a joining portion, and relative positioning convex portion and the location indentations of being provided with the mating face of revolving part of fixed block;

It is characterized in that having a horizontal web between the vertical type shelf sheet of this support and joining portion, a plurality of locating slots are offered on its surface; This first conjunction bottom water planar radial is offered an inserting groove, and the fixed block of this cam member extends radially out a plug tenon, this plug tenon socket inserting groove, and be plugged in the locating slot that correspondence offers and locate; And this second conjunction bottom water planar radial is prominent establishes at least one joggle, and it is to be plugged in the locating slot that correspondence offers and to locate; When pivot rotates, can make these friction plate synchronization motions, and be adjacent the contact member formation friction torsion that is fixing respectively.

9. turning shaft structure as claimed in claim 8 is characterized in that, the width of this plug tenon and joggle is corresponding to the width of the locating slot of being pegged graft, and this plug tenon and joggle can move axially in the locating slot of being pegged graft.

10. turning shaft structure as claimed in claim 8 is characterized in that, the fixed block of each friction plate and adjacent vertical type shelf sheet, first conjunction, cam member, and the approximal surface of second conjunction is provided with the oilhole of arranging in the form of a ring respectively.

11. turning shaft structure as claimed in claim 8 is characterized in that, this elastomer is to be selected from dish-shaped shell fragment, spring or waveform splinter.

12. turning shaft structure as claimed in claim 8, it is characterized in that this support is adjacent to the axis hole peripheral process of pivot and establishes a block, and this axostylus axostyle is to should the stop location radially prominent stop member of establishing, two ora terminalis by this stop member touch this block, with the restriction as the folding angle.

13. turning shaft structure as claimed in claim 8 is characterized in that, the lamellar body of axostylus axostyle opposite end is located in the convergence part of this pivot, and it radially offers at least one attachment hole; And the joining portion of this support is the lamellar body by the horizontal web side extending, and it radially offers at least one conjugate foramen.

14. turning shaft structure as claimed in claim 13 is characterized in that, this joining portion is to extend the also lamellar body of straight extension that is inclined upwardly by this horizontal web side one.

Images