JP3071620U - Rotary shaft structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure of a rotating shaft which reduces an assembling time by a simple structure, and has a lubricating effect as a whole by a helical oil groove on a movable shaft and prevents generation of abnormal noise. . SOLUTION: The structure of the rotating shaft is such that the movable shaft is a rod, a shaft ring is protruded on the surface, and an extension is provided on one side thereof, and is mounted on the lid or main body of the related part. On the other side, a shaft pillar extends, in which a horizontal cut groove is formed, and an annular groove is also provided on the surface so that lubricating oil can be stored. Further, a spiral oil groove is provided on the surface of the shaft post and communicates with the annular groove so as to pass the lubricating oil. The fixed shaft is a cylindrical body having an extension on one side surface, and is connected to a main body or a lid of related parts. On the opposite side is a shaft cylinder, the inner diameter of which is slightly smaller than the shaft hole of the shaft post, and the shaft post is fitted into the shaft hole. When the cut groove is pushed and slightly deformed, it enters the shaft hole smoothly. Since the oil groove spreads the lubricating oil all over, the generation of abnormal noise when rotating in the shaft hole is prevented.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to the structure of the rotating shaft, particularly to strengthen the connection between the fixed shaft and the movable shaft, and to reduce the assembling time by a simple structure.A spiral oil groove is provided on the movable shaft of the present invention. It is provided to provide an overall lubrication effect and prevent the generation of abnormal noise.

[0002]

[Prior art]

 Generally, there are portable personal computers, electronic dictionaries, portable audio devices, and the like as consumable electronic products that open and close the lid. In most cases, the main unit is installed in the lower part, and the main unit is connected to the upper half lid by a rotating shaft so that the lid can be opened and closed corresponding to the main part. For this reason, the rotating shaft is also one of the major factors of the above products. In fact, a good rotating shaft, in addition to the necessary stopping effect, does not loosen due to repetitive operations, and of course does not make the user uncomfortable due to the generation of abnormal sounds due to the operations. Roughly speaking, there are two types of friction generation methods for rotating shafts, one of which is skewered, which is axial friction, and the other is which is of an embedded type, which is diametrical friction.

[0003]

[Problems to be solved by the invention]

 However, the common self-contained rotary shaft has a high localization effect but is too precise. This is because the male and female parts are made of metal that is easy to grind and scrape, so a shaft hole is opened in the female part, a pillar hole is also opened in the center of the male pillar, and a horizontal cut groove is made. As a result, the shaft column has an appropriate elasticity and can be easily fitted into the shaft hole. However, in order to enhance the strength and wear of the male and female parts, they must be further heat-treated after grinding and shaving, which often causes deformation when opening a hole in the shaft post. Therefore, it cannot be fitted into the shaft hole well.

[0004]

Means for Solving the Problems In order to solve the above problems, the structure of the rotating shaft according to the present invention improves the above-mentioned problems and reduces the assembly time by the simple structure. In addition, the present invention is characterized in that a spiral oil groove is provided on the movable shaft to give a lubricating effect as a whole and to prevent generation of abnormal noise.

[0005]

[Embodiment]

 Hereinafter, embodiments of the structure of the rotary shaft according to the present invention will be described with reference to the drawings. 1 is a three-dimensional exploded view of the present invention, FIG. 2 is a sectional view after assembling the present invention, FIG. 3 is a three-dimensional view of connection of the present invention and related parts, and FIG. 4 is a three-dimensional view of another embodiment according to the present invention. is there. First, as shown in FIGS. 1 and 2, the rotating shaft of the present invention mainly includes a movable shaft 1 and a fixed shaft 2. The movable shaft 1 is a rod, and a protruding shaft ring 11 is provided on the surface, and an extension 12 is provided on one side thereof, and is connected to a lid of a related component such as a monitor. On the other side of the shaft ring 11, a shaft column 13 is extended, in which a notch groove 131 is formed horizontally, and an annular groove 132 is formed at the end of the surface, in which lubricating oil is stored. A spiral oil groove 133 is further provided on the surface of the shaft 13, and communicates with the annular concave groove 132 to provide a passage for lubricating oil. The purpose of installing the annular groove 132 is to control the friction area between the shaft 13 and the fixed shaft 2, change the friction torque, and even if the oil in the oil groove 133 is consumed due to friction, the annular groove 132 is used. This is because oil can be guided from the groove 132 to the oil groove 133 at any time. The cross section of the oil groove 133 is V-shaped on the outside and large on the inside, so that a relatively large amount of oil can be stored. In addition, a protrusion 134 is provided at the front end of the shaft 13 so that the fixed shaft 2 can be easily fitted. Further, since the present invention has a localization structure in which an angle can be set, the shaft ring 11 can be cut off according to a customer's request, and then the stop 111 can be formed to determine the rotation limit of the movable shaft 1. The fixed shaft is a cylindrical body, and an extension portion 21 is provided on one side thereof so as to be connected to a main body of related parts. A shaft hole 221 having a diameter slightly smaller than that of the shaft column 13 is formed in the shaft cylinder 22 on the other side. When the shaft column 13 is fitted into the shaft hole 221, the cut groove 131 is slightly pressed, so that the entire shaft column 13 is firmly fitted into the shaft hole 221 by the fitting method, and becomes a rotating shaft having a localization stopping effect. . Further, in order to make the fitting of the shaft column 13 smooth, a fixed shaft hole 222 slightly larger than the shaft column 13 is formed at the frontage of the shaft hole 221, so that the protrusion 134 can be easily inserted. In addition, the shaft cylinder 22 has a cylinder stop projection 23, which is installed so as to fit exactly with the shaft ring 11, has a stopping action at the time of rotation together with the stop part 111, and has a limit at the time of one rotation of the movable shaft. Become.

FIG. 3 shows a connection instruction diagram of the rotary shaft and related parts shown in FIG. 1, wherein the extension 12 of the movable shaft 1 and the support 3 are connected by riveting. It is fixed to the lid of the component. Further, the whole fixed shaft 2 is put into the base hole 41 of the shaft base 4, and the fixed shaft 2 is fixed in the base hole 41 by the milling surface 211 installed on the extension part 21 so as not to move. When the hooking projection 212 at the tip of the extension 21 is passed through the base hole 41 and the hooking piece 42 and the hooking projection 212 are combined, the fixed shaft 2 is fixed to the related component main body. When the lid is opened, friction occurs between the shaft post 13 and the shaft hole 221, and an effect of stopping the localization is further obtained. When the stop portion 111 and the cylinder stop protrusion 23 come into contact with each other, the opening angle of the lid reaches the limit there.

FIG. 4 is an instruction diagram of another embodiment of the present invention. The difference from FIG. 3 is that the shaft cylinder 22 does not have the cylinder stop projection 23, and instead has a platform stop portion at the peripheral edge of the platform hole 41. 43 is being installed. When the stand stop 43 comes into contact with the stop 111, the opening angle reaches the limit there.

In addition, since the above-mentioned names of the movable shaft 1 and the fixed shaft 2 are merely for the sake of simplicity of description, the movable shaft 1 is, in fact, directly installed on the main part of the related component and fixed. Shaft 2 is also installed directly on the lid of the relevant part, depending on how the invention is implemented. In order to further improve the effect of the present invention, if only a cut groove is opened in the shaft column and heat treatment is performed, the deformation rate will be reduced to the minimum. In addition, by installing an annular groove, an oil groove is installed to control the friction area of the shaft hole, change the friction torque, and store lubricating oil. In addition, since the oil groove helically surrounds the shaft post, the oil groove has an excellent lubrication effect and prevents generation of abnormal noise. In addition, the protruding portion of the shaft column is smoothly inserted by the fixed shaft hole in the shaft hole frontage, so that assembly is easy. Further, the stop formed by making a cut in the shaft ring has a stop action by a cylinder stop protrusion integrated with the shaft cylinder or a stand stop provided on the shaft stand, and the opening angle of the related part cover is adjusted. Make the limit. Also, the movable shaft of the present invention fits the fixed shaft of two types of molds, so that the manufacturing cost can be reduced. It should be noted that what is shown in the present invention is a kind of the embodiment, and any modification or decoration of the local area is regarded as a technology of the present invention and belongs to the present invention.

[0009]

[Effect of the invention]

 As described above, the structure of the rotating shaft according to the present invention is such that the movable shaft is a rod, a shaft ring is protruded on the surface, and an extension is provided on one side thereof, and a lid or a related component is provided. Or the main part, and a shaft pillar extends on the other side, a horizontal cut groove is opened there, and an annular groove is also installed on the surface so that lubricating oil can be stored . In addition, a spiral oil groove is provided on the surface of the shaft column, and communicates with the annular groove to provide a path for lubricating oil. Further, the fixed shaft is a cylindrical body, which has an extension on one side surface, and is characterized in that it is connected to a main body or a lid of related parts. Thereby, the simple structure shortens the assembling time, and also provides a spiral oil groove on the movable shaft of the present invention, which is effective in providing a lubricating effect as a whole and preventing generation of abnormal noise.

[Brief description of the drawings]

FIG. 1 is a three-dimensional exploded view of a rotating shaft of the present invention.

FIG. 2 is a sectional view of the present invention after assembly.

FIG. 3 is a perspective view showing a connection between the rotary shaft and related parts according to the present invention;

FIG. 4 is a perspective view of another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Movable shaft 11 Shaft ring 111 Stop part 12 Extension part 13 Shaft pillar 131 Cut groove 132 Annular concave groove 133 Oil groove 134 Projection part 2 Fixed shaft 21 Extension part 211 Milling surface 212 Hook convex 22 Shaft tube 221 Shaft hole 222 Fixed shaft hole 23 Cylinder stop part 3 Support part 4 Axle stand 41 Base hole 42 Hook piece 43 Stop part

Claims (5)

[Utility model registration claims] The structure of the rotating shaft is such that the movable shaft is a rod, a shaft ring is provided on the surface, and an extension is provided on one side thereof to be connected to a lid or a main body of a related part. In addition, a horizontal notch is opened in the shaft pillar extending to another side, and an annular groove is installed at the end of the surface so that lubricating oil can be stored. There is a spiral oil groove, which can guide the lubricating oil through the annular groove, the fixed shaft is a cylindrical body, there is an extension on one side, where the related parts The main body or the lid can be connected, and a shaft cylinder extends on another side, and a shaft hole with a diameter slightly smaller than the shaft pillar is opened there. When the fitting and notch grooves are pressed slightly to deform them, they are smoothly positioned in the shaft hole, and The structure of the rotating shaft, characterized in that the rotating shaft structure has a lubricating effect as a whole and does not generate abnormal noise even when the shaft column is inserted into the shaft hole and rotated. 2. The structure of a rotary shaft according to claim 1, wherein the rotary shaft has a V-shaped cross section of an oil groove. 3. A structure of the rotating shaft, wherein a protruding portion is provided at a tip of the shaft pillar, and a fixed shaft hole having a slightly larger diameter than the shaft pillar is formed at a front end of the shaft hole, so that both can be easily fitted. The structure of a rotating shaft according to claim 1, wherein the rotating shaft is formed. 4. The structure of the rotating shaft, in which a stop is made after a suitable cut is made in the shaft ring, and a cylinder stop projection is provided on one side surface of the shaft cylinder, so that the stop function is provided. 2. The structure of a rotating shaft according to claim 1, wherein the structure is a rotation limit. 5. The structure of the rotary shaft, wherein the extension of the movable shaft is connected to the support, and is fixed to the cover or main body of the related component, and the fixed shaft is inserted into the base hole of the shaft base. The hook protrusion at the end of the extension part extends into the base hole, and the headstock is fixed to the main part of the related component or the lid together with the hook piece. In addition, a base stop is provided at the peripheral edge of the base hole. 2. The structure of the rotating shaft according to claim 1, wherein the stop portion of the movable shaft has a stopping action, which is the limit of rotation.