JP4338182B2 - Hinge - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention connects a device body such as a notebook computer and an opening / closing member so as to be relatively openable and closable, and generates a friction torque on the peripheral surface side of the rotating shaft when the opening / closing member is opened / closed. In particular, the present invention relates to a friction plate that generates a friction torque in a hinge configured to be held at an opening / closing angle.
[0002]
[Prior art]
As shown in FIG. 7, the inventor of the present invention has a friction plate F that elastically sandwiches the rotation shaft R from both sides, and the contact piece F <b> 1 that holds the half circumference of the rotation shaft R is formed in a semicircular shape. It was.
[0003]
[Problems to be solved by the invention]
However, since the conventional semicircular contact piece F1 provides a contact force to the rotating shaft R in a cantilever state, there is a problem of an upper limit of friction torque in terms of strength. There were problems with stability and reliability for use.
[0004]
The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a hinge that can sufficiently ensure stability and reliability against the use of high-frequency friction torque. There is to do.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, the hinge of the present invention connects the device main body and the opening / closing member so as to be relatively openable / closable, and generates friction torque on the peripheral surface side of the rotating shaft when the opening / closing member is opened / closed. In the hinge configured to hold the opening / closing member at an arbitrary opening / closing angle, the supporting member attached to the device main body, the supporting shaft attached between the left and right support plates of the supporting member, and the opening / closing member A rotating shaft that is supported so as to be opened and closed and is rotatably mounted between the left and right support plates of the support member, an attachment hole through which the support shaft is inserted, and a flat contact surface that frictionally contacts the rotating shaft. A friction plate having friction holes, a friction plate, and means for elastically pressing the contact surface against the rotation shaft. Both provided two, the abutment surface of the adjacent friction plate facing each other, characterized in that it is configured to sandwich resiliently the rotary shaft from the left and right.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3 show an embodiment of a hinge according to the present invention, which is composed of a support member 1, a rotary shaft 2, a large number of friction plates 3, a support shaft 4, and a pressing action shaft 5. ing.
[0007]
The support member 1 includes a base plate 1a attached to a device main body (not shown) such as a notebook personal computer, and left and right support plates 1b erected on the left and right sides of the base plate 1a.
[0008]
The rotating shaft 2 is rotatably attached to the support plate 1b. 6 is a retaining ring. A base of an opening / closing member (not shown) such as a lid with a display such as a notebook personal computer is attached to the rotating shaft 2, and the opening / closing member is attached to the device main body so as to be opened and closed. .
[0009]
As is apparent from FIGS. 2 and 3, the friction plate 3 is inserted through the mounting hole 3 a through which the support shaft 4 is inserted, the friction hole 3 b through which the rotary shaft 2 is inserted, and the pressing action shaft 5. It is comprised from the shaft hole 3c. A semi-arc-shaped portion of the friction hole 3b serves as a contact surface 3b1 that frictionally contacts the rotating shaft 2. At least two friction plates 3 are provided, and are attached so that the contact surfaces 3b1 of the adjacent friction plates 3 face each other, so that the rotary shaft 2 is elastically sandwiched from the left and right.
[0010]
As is apparent from FIG. 2, the center of the friction hole 3b is eccentric inward by a slight angle (5 ° in this embodiment) with respect to the line L connecting the mounting hole 3a and the shaft hole 3c. Therefore, when the left and right friction plates 3 are assembled to the support shaft 4 and the pressing action shaft 5, as shown in FIG. 3, the left and right contact surfaces 3b1 are in a state of approaching each other.
Therefore, when the rotating shaft 2 is inserted between the contact surfaces 3b1, the contact surface 3b1 is elastically pressed against the rotating shaft 2 as shown by an arrow B in FIG. The rotating shaft 2 is held at an arbitrary rotational position by the frictional force of the friction plate 3.
[0011]
The friction plate of the present invention is not limited to the above embodiment. For example, as shown in FIG. 5, a flat portion 7b is formed on the contact surface 7a of the friction plate 7, and as shown in FIG. By forming the flat portion 2a on the rotating shaft 2 that is in contact with the rotating shaft 2, when the flat portion 7b of the friction plate 7 is exactly aligned with the flat portion 2a of the rotating shaft 2, the friction plate 7 rotates the rotating shaft. The rotation of 2 is elastically locked. If this lock state is established when the opening / closing member is closed with respect to the apparatus main body, the opening / closing member is not likely to open naturally, and there is no need to specially provide a conventional locking mechanism.
When the opening / closing member is forced to open, the rotating shaft 2 rotates against the elastic force of the friction plate 7 to open the opening / closing member as shown in FIG. it can. Even when the rotating shaft 2 is rotated, the pressing frictional force is still exerted on the rotating shaft 2, so that the opening / closing member can be held at an arbitrary angle.
[0012]
In the above embodiment, the frictional force exerted on the rotating shaft by the friction plate is generated by the pressing action shaft. However, as shown in FIG. 6, the friction acting plate 8 is formed with a pressing action piece 8a. The pressing frictional force may be generated by tightening with the tightening screw 9.
[0013]
【The invention's effect】
According to the present invention, sufficient strength stability and reliability can be ensured for the use of high-frequency friction torque in the friction plate.
[Brief description of the drawings]
FIG. 1A is a front view showing an embodiment of a hinge according to the present invention, and FIG.
FIGS. 2A and 2B are explanatory diagrams (A) and (B) of the friction plate of the embodiment of FIG.
3 is an operation explanatory view of the friction plate of the embodiment of FIG. 1. FIG.
FIGS. 4A and 4B are operation explanatory views (A) and (B) of the hinge of FIG. 1;
FIG. 5 is an explanatory view showing another embodiment of the friction plate of the present invention.
FIG. 6 is an explanatory view showing still another embodiment of the friction plate of the present invention.
FIG. 7 is an explanatory diagram of a conventional locking mechanism.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Support member 1a Base plate 1b Support plate 2 Rotating shaft 3 Friction plate 3a Mounting hole 3b Friction hole 3b1 Flat part 3c Shaft hole 4 Support shaft 5 Pressing action shaft 6 Retaining ring 7 Friction hole 7a Contact surface 7b Flat part 8 Friction plate 9 Tightening screw

Claims (1)

The device body and the opening / closing member are connected so as to be relatively openable and closable, and a friction torque is generated on the peripheral surface side of the rotating shaft when the opening / closing member is opened / closed so that the opening / closing member can be held at an arbitrary opening / closing angle. In the hinge,
A support member attached to the device body;
A support shaft attached between the left and right support plates of the support member;
A rotary shaft that supports the openable / closable member in a freely openable / closable manner and is rotatably mounted between the left and right support plates of the support member;
A friction plate comprising a mounting hole through which the support shaft is inserted, and a friction hole having a flat contact surface that frictionally contacts the rotating shaft;
Means for elastically pressing the contact surface of the friction plate against the rotating shaft;
Consisting of
The hinge is characterized in that at least two friction plates are provided, and the contact surfaces of adjacent friction plates face each other so as to elastically sandwich the rotation shaft from the left and right.

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