CN2661993Y - Shaft improvement structure - Google Patents

Abstract

The utility model discloses an improved structure of a rotating shaft, which aims to provide an improved structure of a rotating shaft under the condition of requiring simplification, which is used to improve the situation that the user's assembly process is relatively complicated and the resistance or interference of operation cooperation is relatively large. It includes a bushing defining an axis chamber; a cam and a spring installed in the axis chamber of the bushing, so that the cam includes a concave surface with a ridge and a valley; a brake, which can extend into the axis chamber and pass through the cam and the spring; the brake has a slide bar, which is constantly located on the concave surface of the cam, and in response to the brake rotating due to external force, the slide bar can move on the concave surface, relatively forcing the cam to produce axial displacement to compress the spring to accumulate energy.

Description

Shaft improvement structure

technical field

The utility model relates to a rotating shaft structure used for electronic utensils, in particular to a simple rotating shaft structure which can form a form of less resistance during operation and matching.

Background technique

It is a common technology to use a rotating shaft device that can rotate freely due to external force to assemble on electronic devices, such as mobile phones, laptops, etc., so that the cover or display screen can be rotated to have opening and closing functions. Usually, the commonly used rotating shaft device is to make a shaft with a threaded section pass through several disc-shaped washers or a coil spring to lock the nut to obtain a pressing effect and allow the cover or display screen to rotate, such as Taiwan Patents No. 82202768 "New Structure of Knob", No. 81201482 "Pivot Structure Capable of Stagnant Positioning" and the like all provide typical embodiments.

In Taiwan's No. 86205702 "Prevention of Mistouching Button Device" patent case, another type of hinge device (please refer to Figures 1, 2, and 3) assembled on a mobile phone is disclosed. This hinge device 10 includes a The shaft 11 passes through the right side shaft 12 of the shaft hole A and the support shaft B of a fitting shaft connection device, and one end of the right side shaft 12 protrudes from the side wings 121, 122 and the wing chamber 123 defined between the side wings 121, 122; After passing through the spring 13, the mandrel 11 passes through a relay shaft 14 and a left side shaft 15 with one end fitted in the shaft hole A' and the supporting shaft B' of the shaft connection device. The end of the relay shaft 14 facing the right shaft flanks 121, 122 is relatively formed with end wings 141, 142 and an end chamber 143 defined between the end wings 141, 142; the end chamber 143 and the wing chamber 123 are common It is used to accommodate the spring 13, and allows the side wings 121, 122 to extend in, and to be combined with the end wings 141, 142; the other end of the intermediate shaft 14 is protrudingly provided with two arc tenons 144, 145 and two recesses 146 formed therebetween. The arc ends 151, 152 and the recess 153 can be butted against each other. When the cover plate C is lifted, the two arc tenons 144, 145 of the relay shaft 14 move along the recess 153 of the left shaft, compress the spring 13, and force the end wings 141, 142 into the wing chamber 123, and the side wings 121, 122 stretch out. Inside the entrance chamber 143 . When the two arc tenons 144, 145 pass over the two arc ends 151, 152 respectively, the arc tenons 144, 145 lose their support, and the rebound of the spring 13 makes the arc tenons 144, 145 rotate axially along the concave portion 153 to make The cover C is opened to an angle position.

Its weak point is that the rotating shaft device 10 has the following problems in actual operation:

1. The arc tenon 144, 145, recess 146 of the relay shaft 14 and the arc ends 151, 152, recess 153 of the left shaft 15 cooperate with each other to form a "surface" contact; in practice, there is a large gap between them. In the case of resistance or interference, the user usually instinctively increases the operating force of the tilting cover C to overcome or compensate for the interference.

2. Figures 1, 2 and 3 show that the rotating shaft device 10 has a complex number of components and structures. For example, the assembly end of the right side shaft 12 and the relay shaft 14 is formed with side wings 121, 122, wing chamber 123, and end wings 141, 142, and the structure of the end chamber 143 to cooperate with each other; or the relay shaft 14 and the left side The assembly ends of the side shaft 15 are respectively provided with arc tenon 144, 145, recess 146, arc ends 151, 152, recess 153 and other structures, which also reflects that the processing and assembly of the shaft device 10 is relatively complicated and costly. high.

Contents of the invention

The purpose of this utility model is to propose an improved structure of a rotating shaft in view of the above-mentioned shortcomings of the prior art. The rotating shaft device is used to minimize the resistance or interference of the operational fit between the components under the condition of a simple requirement; and the complexity or difficulty and cost of the structure, processing and assembly are obviously obtained. improve.

In order to solve the above technical problems, the utility model is achieved through the following technical solutions. The improved structure of the rotating shaft includes: a bush defining a shaft chamber; a cam and a spring fitted in the shaft chamber of the bush, so that the cam Consists of a concave surface with ridges and valleys; a detent that extends into the shaft chamber and passes through the cam and spring; When rotating, the slide bar can be displaced on the concave surface, relatively forcing the cam to produce axial displacement to compress the spring to store energy.

The utility model can also be: the sliding rod of the brake is perpendicular to the axis direction of the brake; the concave surface of the cam is symmetrical; the concave surface of the cam makes the length from the valley to the ridge longer than the length from the ridge to the other The length of the valley on one side; the slide bar makes point or line contact with the concave surface; the cam is in the shape of a square body; the stopper has a larger portion of the head, allowing the stopper to pass through a through hole in the cam Finally, at least the head cannot pass over the cam; the brake has a tail end, which is fixed by a buckle after passing through the cam and the spring; the slide bar and the brake are integrally formed.

Compared with the prior art, the beneficial effect of the utility model is: according to the improved structure of the rotating shaft, the cam includes a concave surface with opposite ridges and valleys, so that a slide bar of the above-mentioned brake is allowed to move on the concave surface, And form point or line contact with the concave surface to reduce the above-mentioned resistance.

Description of drawings

Fig. 1 is a three-dimensional exploded view of a common hinge device and a cover of a mobile phone or an electronic appliance;

Fig. 2 is a three-dimensional exploded view of the rotating shaft device in Fig. 1;

Fig. 3 is the action embodiment figure of Fig. 1 combination;

Fig. 4 is a three-dimensional exploded view of the rotating shaft device of the present invention;

Fig. 5 is a three-dimensional sectional schematic diagram of the rotating shaft device of the present invention;

Fig. 6 is a schematic diagram of an embodiment of the utility model shaft device assembled on a mobile phone or an electronic appliance and a partial enlarged view thereof;

Fig. 7 is an action example diagram of the rotating shaft device of the present invention;

Fig. 8 is another action embodiment diagram of the rotating shaft device of the present invention;

Fig. 9 is a schematic diagram of another embodiment of the cam part of the rotating shaft device of the present invention;

Fig. 10 is a schematic diagram of another embodiment of the cam part of the rotating shaft device of the present invention.

Among them, 10 and 20 are rotating shaft devices; 11 is a mandrel; 12 is a left shaft; 121 and 122 are flanks; A and A' are shaft holes; B and B' are supporting shafts; 123 is a wing chamber; 13 is a spring ; 14 is the relay shaft; 15 is the left side shaft; 141,142 is the end wing; 143 is the end chamber; 144,145 is the arc tenon; 146,153 is the recess; Electronic appliance; 21 is shaft chamber; 22 is bush; 23, 40, 50 are cam; 24 is spring; 25 is brake; 26, 41, 51 are concave surface; 27 is through hole; 28, 43, 53 are ridge ; 29,42,52,44,54 are valleys; 30 is a clasp; 251 is a tail end; 252 is a head; 31 is a slide bar.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

As shown in Figures 4 and 5, the rotating shaft device of the present utility model is represented by a number 20 in the adopted embodiment. The shaft device 20 includes a bushing 22 that defines a shaft chamber 21; a cam 23 and a spring 24 that are respectively fitted in the shaft chamber 21, and the cam 23 and the spring 24 are kept in the shaft chamber 21 by a stopper 25 without Will disengage the bushing 22. Specifically, the cam 23 includes a concave surface 26 formed at the upper end and a through hole 27 that allows the above-mentioned stopper 25 to pass through; Lower valley 29 . Therefore, in the embodiment adopted by the utility model, after the stopper 25 stretches into the shaft chamber 21 and passes through the cam 23 and the spring 24, a tail end 251 is fixed by a buckle 30, as shown in FIG. 5 .

Stopper 25 comprises the head 252 of a relatively large part, makes stopper 25 can not cross cam 23 completely at least, and a slide bar 31 that is arranged perpendicular to the axial direction of stopper 25; Move on the concave surface 26.

As shown in Figure 6, in a specific embodiment, the hinge device 20 can be fitted on a clamshell mobile phone or electronic appliance D; 21 produces a rotary motion, so that the slide bar 31 moves from the valley 29 of the concave surface 26 to the position of the ridge 28, and the relative compression cam 23 produces an axial displacement to the bottom of the figure, and the spring 24 gradually accumulates energy, as shown in Figure 7 The situation shown in the phantom line part in .

As shown in Figure 8, when the slide bar 31 reaches the concave ridge 28, if it crosses the ridge 28, the spring 24 will release the previously accumulated energy, forcing the slide bar 31 to automatically move to the valley 29 on the other side of the concave surface 26, and let the cover The board D1 is in the opened state. Unless the user exerts force to operate the cover D1 to cover the mobile phone or electronic appliance D, the force will force the brake 25 to rotate, allowing the slide bar 31 to move back along the aforementioned path, and relatively compress the cam 23 and the spring 24 until The slide bar 31 returns to the original valley portion 29 position.

It should be noted that the rotating shaft device 20 has a simpler structure compared to the user; it enables the brake 25 to have a slide bar 31 to cooperate with the cam 23, so that the lifting, positioning, and opening of the cover D1 can be achieved. Closing and other functions have significantly improved the complex matching situation of users using left and right shafts with flanks, wing chambers, arc ends, and end recesses and relay shafts with arc tenons, arc recesses, end wings, and end chambers. Moreover, making the slide bar 31 of the brake 25 only maintain point or line contact with the concave surface 26 of the cam 23 also significantly reduces the user's ability to move during operation using the combined contact between the two arc tenons of the relay shaft and the two arc ends of the left shaft. situations of resistance or interference.

Figure 9 shows a feasible embodiment of the cam of the utility model rotating shaft structure, and the cams are all represented by numbers 40; the concave surface 41 of the cam 40 provides the path of the reciprocating movement of the slide bar 31 with different distances, that is, from the valley portion 42 The length to the ridge 43 is significantly greater than the length from the ridge 43 to the valley 44 . It reflects that the cover plate D1 is opened to a larger angle position before it can be positioned.

Figure 10 shows a modified embodiment where the cam 50 has a cuboid configuration. It can be understood that the concave surface 51 of the cam 50 can refer to the modified mode of FIG.

To sum up, the utility model provides an effective improved structure of the rotating shaft. Its spatial pattern is different from the commonly used rotating shaft structure. The complexity or difficulty and cost of its structure, processing and assembly are obviously improved.

Claims (10)

1, a kind of improved structure of rotating shaft is characterized in that, comprising:

A lining that defines a chamber;

Be fitted in described lining axle indoor cam and spring, make described cam comprise a concave surface with spine and paddy portion;

A break can put in described axle chamber, and by described cam and spring; Described break has a slide bar, and on the constant concave surface that is positioned at cam, when the response break rotated because of external force, described slide bar can move on concave surface, forces cam to produce axial displacement to compress described spring energy accumulation relatively.

2, improved structure of rotating shaft as claimed in claim 1 is characterized in that, the slide bar of described break is perpendicular to the axial direction of break.

3, improved structure of rotating shaft as claimed in claim 1 is characterized in that, the concave surface of described cam becomes symmetrical kenel.

4, improved structure of rotating shaft as claimed in claim 1 is characterized in that, the concave surface of described cam makes paddy portion arrive the length of the paddy portion of another side greater than described spine to the length of spine.

5, improved structure of rotating shaft as claimed in claim 1 or 2 is characterized in that, described slide bar forms contacting of point or line with concave surface.

6, improved structure of rotating shaft as claimed in claim 1 is characterized in that, the configuration of described cam squarely body.

As claim 1 or 6 described improved structure of rotating shaft, it is characterized in that 7, the concave surface of described cam makes paddy portion arrive the length of the paddy portion of another side greater than described spine to the length of spine.

8, improved structure of rotating shaft as claimed in claim 1 is characterized in that, described break has the head of a major part, make break pass a through hole of cam after, described at least head can't be crossed described cam.

9, as claim 1 or 8 described improved structure of rotating shaft, it is characterized in that described break has a tail end, after by cam and spring, fixed by a clasp.

10, improved structure of rotating shaft as claimed in claim 1 or 2 is characterized in that, described slide bar and break are one-body molded.

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