JP4308590B2 - 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 friction torque on the peripheral surface side of the rotating shaft when the opening / closing member is opened / closed. The present invention relates to a hinge configured to be able to be held at an opening / closing angle, wherein the opening / closing member can be sucked into a predetermined rotational position, that is, can be elastically locked.
[0002]
[Prior art]
Conventionally, as shown in FIG. 7, an opening / closing member such as a lid of an apparatus such as a notebook personal computer is provided with a hook nail N, and a lock hole H is formed in the apparatus body to close the opening / closing member N. Enters the hole H and is locked.
[0003]
[Problems to be solved by the invention]
However, since the hooking nail protrudes from the opening / closing member, it is not only unobtrusive because of the obstruction, but it is necessary to provide a mechanism for hooking or releasing the hooking nail N in the lock hole H. There was a problem that the structure was complicated and expensive.
[0004]
The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to reliably and stably lock the open / close member in the closed state without providing a special lock mechanism. It is to provide a hinge that can be kept.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, the hinge of the present invention connects the device body and the opening / closing member so as to be relatively openable and 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 rotary 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 semi-arc-shaped contact surface that frictionally contacts the rotary shaft And at least two friction plates, and the contact surfaces of the adjacent friction plates face each other. The rotation shaft is elastically sandwiched from the left and right to hold the opening and closing member at an arbitrary rotation position, and a flat portion is formed on the semi-arc-shaped contact surface of the friction plate, thereby forming the rotation shaft. The rotary shaft is configured to be elastically locked together with the flat portion .
[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 FIG. 2, the friction plate 3 has a mounting hole 3 a through which the support shaft 4 is inserted, and a semi-arc-shaped contact that abuts on the mounting shaft 3 a so as to hold the substantially half circumference of the rotating shaft 2. It comprises a surface 3b and a shaft hole 3c through which the pressing action shaft 5 is inserted. At least two friction plates 3 are provided, and are attached so that the contact surfaces 3b of the adjacent friction plates 3 face each other so as to sandwich the rotating shaft 2 from the left and right.
[0010]
Further, as is clear from FIG. 2, the center of the semi-arc contact surface 3b is a slight angle (5 ° in this embodiment) with respect to the line L connecting the mounting hole 3a and the shaft hole 3c. Since it is eccentric to the inside, when the left and right friction plates 3 are assembled to the support shaft 4 and the pressing action shaft 5, the left and right contact surfaces 3b are brought close to each other as shown in FIG.
Therefore, when the rotary shaft 2 is inserted between the contact surfaces 3b, the contact surface 3b is elastically pressed against the rotary 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]
Further, as is clear from FIGS. 2 and 4, a flat portion 3b1 is formed on the semi-arc-shaped contact surface 3b, and a flat portion 2a is also formed on the rotary shaft 2 that contacts the flat portion 3b1. Yes.
Therefore, as shown in FIG. 4A, when the flat portion 3b1 of the abutting surface 3b of the friction plate 3 is exactly aligned with the flat portion 2a of the rotary shaft 2, the friction plate 3 causes the rotary shaft 2 to rotate. The rotation of 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.
If the opening / closing member is forced to open, the rotating shaft 2 rotates against the elastic force of the friction plate 3 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]
The friction plate of the present invention is not limited to the above-described embodiment. For example, as shown in FIG. 5, the portion where the contact surface 7a is formed surrounds the entire circumference of the rotating shaft (not shown). You may form in. Thereby, the structural strength in the vicinity of the contact surface 7a can be increased.
[0013]
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.
[0014]
【The invention's effect】
According to the present invention, the opening / closing member can be reliably and stably locked in the closed state without providing a special locking mechanism.
[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 2a Flat part 3 Friction plate 3a Mounting hole 3b Contact surface 3b1 Flat part 3c Shaft hole 4 Support shaft 5 Pressing shaft 6 Retaining ring 7 Friction plate 7a Contact surface 8 Friction plate 8a Pressing piece 9 Tightening screw H Lock hole N Hanging claw L wire

Claims (1)

The device body and the opening / closing member are connected so as to be relatively openable and closable, and the opening / closing member can be held at an arbitrary opening / closing angle by generating friction torque on the peripheral surface side of the rotating shaft when the opening / closing member is opened / closed. 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 semi-arc-shaped contact surface that frictionally contacts the rotating shaft;
Consisting of
At least two friction plates are provided, the contact surfaces of adjacent friction plates face each other, the rotation shaft is elastically sandwiched from the left and right, and the opening and closing member is held at an arbitrary rotation position. A hinge configured to form a flat portion on a semi-arc-shaped contact surface of the friction plate, and to elastically lock the rotation shaft together with the flat portion formed on the rotation shaft .

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