JPH0557431U - Tilt hinge - Google Patents

Abstract

(57) [Abstract] [Purpose] The display body can be flipped up gently and automatically opened from the closed state to a constant opening angle, and within the range of the opening angle of use of the display body, friction means is provided. The present invention provides a tilt hinge for OA equipment, which is configured so that a frictional force is exerted only by the chisel. A mounting member to be mounted on the apparatus main body side, a rotary shaft that is rotatably attached to a bearing plate of the mounting member to support a display body, and the bearing plate protruding from the bearing plate in the same direction as the rotary shaft. Support shaft,
A control member, one end of which is swingably locked only within a certain range and the other end of which is pivotally attached to the rotary shaft, is installed between the control member and the rotary shaft. And a resilient means for urging the control member to swing in one direction. A part of the control member on the rotary shaft side and the rotary shaft are engaged with each other within a predetermined range. .

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a tilt hinge suitable for opening and closing a display body of an office automation equipment such as a laptop type personal computer or a word processor with respect to the apparatus body.

[0002]

[Prior Art]

 Conventionally, a laptop-type OA device in which a display unit is attached to the main body of the device so as to be freely opened and closed via a tilt hinge has a function that the hinge can hold the display unit in a stable stop state at its use opening angle. It is required to have it, and a structure using only friction means is known as a structure therefor.

[0003]

[Problems to be solved by the device]

 In this conventional tilt hinge, since the friction means functions in the full opening angle range of the display body with respect to the apparatus main body, the weight of the display body and the frictional force of the friction means act in superposition when the display body is opened. There was a problem that it became heavy.

An object of the present invention is to lightly flip up the display body from a closed state to a constant opening angle to automatically open the display body, and within a use opening angle range of the display body. Another object of the present invention is to provide a tilt hinge for OA equipment, which is configured so that a frictional force is exerted only by the friction means.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a mounting member to be mounted on the apparatus main body side, a rotary shaft rotatably mounted on a bearing plate of the mounting member to support a display body, and the bearing plate. A support shaft protruding in the same direction as the rotary shaft, and a control member having one end swingably locked to the support shaft only within a certain range and the other end pivotally attached to the rotary shaft. And a friction means installed between the control member and the rotary shaft, and an elastic means for biasing the control member to swing in one direction, and a part of the control member on the rotary shaft side. The rotary shaft is configured to be engaged within a predetermined range.

The invention further provides a slider rider in which the friction means is interposed between the one side surface of the large diameter portion of the rotary shaft and the one side surface of the control member while inserting the small diameter portion of the rotary shaft at the center thereof. And a thrust washer, a spring washer, and a holding flat washer, which are sequentially interposed while inserting the small diameter portion of the rotary shaft at the center of the other side surface of the control member, and the end of the small diameter portion of the rotary shaft. By crimping the parts, the washers are in pressure contact with each other.

[0007]

[Action]

 Since the rotating shaft is provided with friction means, the display attached to this rotating shaft is subject to the breaking action by the friction force of the friction means at the full opening angle, and can freely stop at any opening angle. Although it can be held, this invention is further provided with a control member for urging the rotating shaft only in a certain rotation angle range by urging the rotating shaft in the opening direction of the display body by the elastic means. When the device is removed, the display body is automatically opened against the frictional force of the friction means from the closing time to a certain opening angle. After that, since the urging force from the control member is not received, the frictional force of the friction means allows the frictional force to be freely stopped and opened at an arbitrary opening angle.

[0008]

【Example】

 FIG. 1 shows an embodiment of the present invention. In FIG. 1, a keyboard 1 is provided, for example, a device body 2 of a word processor, on which a display body 4 made of liquid crystal is attached via a protrusion 3 so as to be openable and closable. There is. In the embodiment, the display body 4 is shown in an open state, but it is closed when not in use, and the locking pieces 4a and 4a projecting from the display body 4 and the engagement provided on the apparatus main body 2 side. It is locked by a locking device comprising stop means 2a, 2a.

The tilt hinge that opens and closes the display body 4 is installed at a portion of one side of the display body 4 as viewed from A in FIG. 1, and the structure thereof is shown in FIG. 2 and subsequent figures. Of course, this tilt hinge may be installed on both sides of the display body 4.

According to the drawing, 5 is a mounting member, which is mounted on the apparatus main body 2 side. The mounting member 5 has a mounting base 5a bent in a convex shape on the side surface and a bearing plate 5b extending vertically from one side of the mounting base 5a, and a bearing hole 6 is provided in the bearing plate 5b. A rotary shaft 7 which also functions as a support member bears a mounting portion 7a at a substantially central portion of the bearing hole 6. The rotating shaft 7 has a large diameter portion 7b and a small diameter portion 7c following the mounting portion 7a, and a substantially rectangular fixing portion 7d formed by scraping off both ends of the mounting portion 7a has a display body. One side of 4 is fixed. Reference numerals 8 and 9 are flat washers and E-rings for preventing the rotary shaft 7 from coming out of the mounting member 5.

Reference numeral 10 denotes a control member, which is rotatably pivotally mounted by inserting a small diameter portion 7c into an insertion hole 10a provided on one side thereof. Between one side surface of the control member 10 and one side surface of the large-diameter portion 7b, a small-diameter portion 7c is inserted into an insertion hole 11a provided in the center portion thereof, for example, a slider washer 11 made of nylon is interposed. There is. On the other side of the control member 10, the small diameter portion 7c is inserted through the through holes 12a, 13a, 14a provided in the respective central portions, and the thrust washer 12, the spring washer 13, and the pressing flat plate made of phosphor bronze, for example, are inserted. The washers 14 are installed in this order, and by caulking the ends of the small diameter portions 7c, the washers are brought into pressure contact with each other to form the friction means 15. A locking piece 10b is projectingly provided from the control member 10 and is adapted to be intermittently engaged with a pin 7e projecting from the large diameter portion 7b of the rotary shaft 7.

The bearing plate 5b is further provided with a support shaft 16 juxtaposed to the rotary shaft 7 in the direction of the small diameter portion 7c. The support shaft 16 has a small diameter portion 16a provided with a long hole at the other end thereof. A control member 10 having a substantially crank shape in a plan view is engaged with 10c so as to be swingable within a certain range. A torsion coil spring 17, which is an example of elastic means, is wound around the support shaft 16, and an end 17a of the torsion coil spring 17 is locked to a projecting piece 10a projecting from the control member 10, and the other end 17b thereof is provided. The control member 10 is urged to swing in one direction by being locked by the locking projections 5c protruding from the drive plate 5, respectively.

Therefore, when the display body 4 is closed with respect to the apparatus main body 2, as shown in FIG. 2, the pin 7e protruding from the large diameter portion 7b of the rotary shaft 7 is provided in the control member 10. Although the locking piece 10b is rocked counterclockwise against the elastic force of the torsion coil spring 17 and pushed up, when the lock device of the display body 4 is released, the control member 10 twists the coil spring. In the range of the elongated hole 10c engaged with the support shaft 16 by the elastic force of 17, the rotary shaft 7 is swung about the fulcrum against the frictional force of the friction means 15, and the rotary shaft 7 is rotated clockwise. The display body 4 having one end fixed to the rotary shaft 7 is automatically opened. The opening angle at this time is about 10 ° in the example, and FIG. 5 shows this state.

When the opening angle is larger than this, the engagement between the locking piece 10b of the control member 10 and the pin 7e of the large diameter portion 7b of the rotary shaft 7 is released, so that the display body 4 is rubbed by the friction means 15. It is opened and closed against a force, and this frictional force freely stops and holds it at a use angle in the range of 90 ° to 125 °. FIG. 6 shows this state.

The arrangement and type of each washer constituting the friction means 15 can be freely changed to those other than the embodiment, and the elastic means can be changed to a leaf spring, a compression coil spring, a tension coil spring or the like. it can. Further, it is optional to open the display body 4 lightly without adjusting the elasticity of the elastic means to automatically open the display body 4.

[0016]

[Effect of the device]

 Since the present invention is configured as described above, the following effects can be obtained.

According to the first aspect of the present invention, the rotary shaft that supports the display body is automatically rotated by the control member that rotates the rotary shaft with the elasticity exceeding the frictional force of the friction means only in a certain rotation range. Since it rotates or is opened lightly, the operability is improved by automatically or lightly opening the display body closed to the main body of the apparatus within a predetermined opening angle range.

According to the second aspect of the present invention, the slider washer interposed between the bearing plate and the large diameter portion of the rotary shaft and the spring washer, which is particularly hardened, are interposed between the bearing plate and the bearing washer. With the thrust washer 6 made of phosphor bronze, it is possible to prevent wear and prevent the frictional force from decreasing after long-term use.

[Brief description of drawings]

FIG. 1 is a perspective view of a word processor using a tilt hinge according to the present invention.

FIG. 2 is a side view of a tilt hinge according to the present invention.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a sectional view taken along line BB of FIG.

FIG. 5 is an explanatory view for explaining the operation of the tilt hinge according to the present invention.

FIG. 6 is an explanatory view for explaining the operation of the tilt hinge according to the present invention.

[Explanation of symbols]

 2 Device body 4 Display body 5 Mounting member 5b Bearing plate 7 Rotating shaft 7b Large diameter portion 7c Small diameter portion 10 Control member 11 Slider washer 12 Thrust washer 13 Spring washer 14 Flat foot washer 15 Friction means 16 Support shaft 17 Screw Twist coil spring (elastic means)

Claims (2)

[Scope of utility model registration request] 1. A mounting member to be mounted on the apparatus main body side, a rotary shaft rotatably mounted on a bearing plate of the mounting member to support a display body, and a projection in the bearing plate in the same direction as the rotary shaft. A support shaft provided, a control member having one end swingably locked to the support shaft only within a certain range and the other end pivotally attached to the rotary shaft, and the control member and the control member. A friction means installed between the rotary shaft and an elastic means for urging the control member to swing in one direction. A part of the control member on the rotary shaft side and the rotary shaft are engaged in a predetermined range. A tilt hinge characterized by being configured to fit. 2. A slider washer in which friction means is interposed between one side surface of the large diameter portion of the rotating shaft and one side surface of the control member while inserting the small diameter portion of the rotating shaft at the center thereof. It consists of a thrust washer, a spring washer, and a flat washer for pressing the small diameter portion of the rotary shaft through the center of the other side surface of the control member, and crimps the end of the small diameter portion of the rotary shaft. The tilt hinge according to claim 1, wherein the respective washers are configured so as to be in pressure contact with each other.