KR960010125Y1 - Tilt hinge for office automation device - Google Patents

Abstract

None.

Description

Tilt hinge for office automation equipment

The present invention particularly relates to a tilt hinge suitable for opening and closing a display unit of an OA device such as a ramtop type or desktop type word processor or personal computer.

(Conventional technology)

This type of tilt hinge conventionally requires the display unit to be stably held at an arbitrary position at an opening angle (90 ° to 135 °) with respect to the device body, and is attached to the device body as such a configuration. Bend the mounting base and bearing plate in the direction perpendicular to each other and insert the bearing hole into the bearing plate of the attachment member composed of cross-sectional angle type, and insert the bearing shaft with the collar into the bearing hole, and sandwich the bearing plate between Insert the washer and spring washer into the center by inserting the rotary shaft, and caulking the end of the rotary shaft to generate friction force on both sides of the bearing plate, and rotate the rotary shaft only by the prescribed torque. The display unit fixed to the rotating shaft can be used. It is well known to keep it stationary.

This conventional tilt hinge for OA machines requires strong caulking torque because it requires the display unit to be held at its open angle only with frictional force. When used for a long time, the friction part, especially metal washer and bearing plate, There was a problem that the static holding ability at any position in the opening angle of the display unit was reduced due to friction and reduced initial rotational torque.

It is an object of the present invention to provide a tilting hinge for an OA device configured to prevent the wear of the friction member as much as possible so as not to reduce the ability to hold a stop at an arbitrary position in the opening angle of the display unit even after long use.

(Means to solve the task)

In order to achieve the above object, the present invention serves as a support member of a display unit supporting an attachment member consisting of an attachment base and a bearing plate attached to the apparatus main body side and a small diameter portion mounted at one end of the bearing plate of the attachment member. Slider washer interposed between the rotating shaft and the large diameter portion of the rotating shaft and the bearing plate while sandwiching the small diameter portion, and the slide washer and spring washer interposed while the small diameter portion is inserted into the central portion on the other side of the bearing plate. And a washer for pressing and rotating the shaft only by applying a predetermined rotational torque by caulking the end of the small diameter portion.

This design also includes a rotating shaft which serves as a support member of a display unit bearing an attaching member consisting of an attachment base and a bearing plate attached to the side of the apparatus, and a small diameter portion installed at one end of the bearing plate of the attaching member. Thrust washer and pressing washer interposed between the switch pressing member made of synthetic resin attached to the large diameter portion of the shaft and the small diameter portion of the rotary shaft at the center between the switch pressing member and one side of the bearing plate and the bearing. It is composed of a spring washer and a pressing washer interposed while inserting the small diameter portion of the rotary shaft on the other side of the plate and caulking the tip of the small diameter portion so that the rotary shaft rotates only when a predetermined rotation torque is applied. It is made up.

The invention also provides a rotating shaft which serves as an attachment member consisting of an attachment base and a bearing plate attached to the device body side, and a support member of a display unit bearing a small diameter portion installed at one end of the bearing plate of the attachment member, and the rotary shaft. Of the thrust washer and the press washer interposed while inserting the small diameter part of the rotary shaft at the center between the switch pressing member made of synthetic resin attached to the large diameter portion of the rotary shaft and one side of the bearing plate. It consists of thrust washer, spring washer and pressing washer interposed while inserting the small diameter part of the rotary shaft into the center of the other side so that the rotary shaft rotates only when a predetermined rotation torque is applied by caulking the string part of the small diameter part. It is made up.

At this time, the eye can be installed so that the center of the switch pressing portion integrally to the large diameter portion.

This design can constitute the thrust washer with phosphor bronze.

1 is a perspective view of an example word processor embodying this invention.

FIG. 2 is a front sectional view of the portion (A) in FIG. 1. FIG.

3 is an exploded perspective view of the tilt hinge according to the present invention.

4 is an exploded perspective view showing another embodiment.

5 is an exploded perspective view showing another embodiment.

* Explanation of symbols for main parts of the drawings

2: main body of the device 4: display unit

5, 24, 30: attachment member 5a, 24a, 30a: attachment base

5b, 24b, 30b: bearing plate 5c, 24c, 30c: protruding piece

6, 27, 31: bearing hole 7, 20, 32: rotating shaft

7a, 20a, 32a: Small diameter part 7b, 20b, 32b: Large diameter part

7c: mounting portion 8: switch pressing portion

9: slider washer 10, 22, 36, 3a: thrust washer

11,25,37: spring washer 12, 26, 38: push washer

13: switch 21, 34: switch pressing member

23, 25: washer

When the attachment base of the attachment member is fixed to the device body and the rotation shaft is fixed to the display unit to open and close the display unit, the wear-resistant thrust washer is interposed between each washer and the bearing plate to stop freely at any position. In addition, the switch of the OA unit main body can be automatically turned on and off by a switch press member or a switch press unit which rotates together with the rotary shaft.

At this time, if the thrust washer is made of phosphor bronze, the wear resistance is abundant, so that even after coking with a stronger bonding torque, the rotational torque due to abrasion may be prevented after a long time of use.

Then, if the locking washer is installed on the pressing washer to prevent it from being caught by the switch pressing member, the switch pressing member is made of synthetic resin because the switch pressing member is not rotated alone in the contact state with the pressing washer. Even if it does not wear out by friction.

(Example)

The figure shows one embodiment of this design and installs the keyboard 1 in FIG. For example, a display unit 4 using liquid crystal is attached to the device body 2 of a word processor via a projection 3 freely opening and closing. In the embodiment, the display unit 4 is shown in an open state, but is closed when not in use, and the engaging holes 2a provided at the side of the apparatus body by the engaging pieces 4a.4a protruding from the display unit 4 are provided. Locked in line with .2a).

A hinge for opening and closing the display unit 4 is provided in part (A) of FIG. 1 and its structure is shown below in FIG.

According to the drawings, in Figs. 2 to 3, reference numeral 5 denotes an attachment member and is attached to the apparatus body 2 side. This attachment member 5 has an attachment base 5a and a bearing plate 5b, and a bearing hole 6 is provided in the bearing plate 5b. In the bearing hole 6, the rotary shaft 7 serving as a supporting material bears the small diameter portion 7a. The rotary shaft 7 has a large diameter portion 7b provided continuously to the small diameter portion 7a and an attachment portion 7c provided continuously to the large diameter portion 7b, and the attachment portion 7c is referred to as a display unit ( I stick to a part of 4).

On the outer circumference of the large diameter portion 7b, the switch pressing portion 8 is integrally provided with a high center, and a slide washer 9 is provided between the switch pressing portion 8 and one side of the bearing plate 5b. The small diameter portion 7a is interposed while the small hole 7a is inserted into the insertion hole 9a. On the other side of the bearing plate 5b, the thrust washer 10 and the spring washer 11 made of phosphor bronze insert the holes 10a and 11a into which they are inserted into the small diameter portion 7a of the rotary shaft 7. I'm making it. The spring washer 11 also comes in contact with the pressing washer 12 by inserting the small diameter portion 7a of the rotary shaft 7 into the insertion hole 12a. By caulking the slide washer 9 and the thrust washer 10 are pressed against both sides of the bearing plate 5b of the attachment member 5. Since the outer diameter of the large diameter portion 7b and the outer diameter of the slider washer 9 are approximately the same, and the outer diameter of the pressing washer 12 and the outer diameter of the thrust washer 10 and the spring washer 11 are approximately the same, the slide washer 9 ) And thrust washer 10 are pressed against the bearing plate 5b of the attachment member 5 evenly over the entire surface.

The switch 13 of the apparatus main body 2 of the OA apparatus is provided below the switch pressing section 8, and the switch is rotated by the rotational angle of the rotary shaft 7 according to the opening / closing operation of the display unit 4. It is automatically turned ON and OFF by the pressure part 8. Another protruding piece 5C protrudes and is installed in the bearing plate 5b, and abuts against the switch pressing part 8 at a constant rotational angle (135 °) at the same time as the shaft 7 is rotated.

The spring washers 11 are also radially alternated with three By arranging (11b, 11c) at equal intervals Both surfaces of the 11b and 11c are comprised flat. Thereby, the spring washer 11 is pressurized evenly to the bearing plate 5b side by the pressing washer 12 which has an outer diameter substantially the same, and the big washer friction force with the bearing plate 5b is large. This becomes a factor obtained.

4 shows another embodiment, and the switch pressing member 21 made of synthetic resin is attached to the large diameter portion 20b of the rotating shaft 20 bearing the small diameter portion 20a in the bearing hole 27. The thrust washer 22 made of phosphor bronze is interposed between the switch pressing member 21 and the bearing plate 24b of the attachment member 24 with a medium metal washer of hardness being interposed therebetween. 24a is an attachment base. The intermediate washer 23 has a locking piece 23a and is not sufficiently shown, but the locking piece 33a is engaged with the switch pressing member 21. On the other side of the bearing plate 24b of the attachment member 24, the spring washer 25 and the pressing washer 26 are interposed by inserting the small diameter portion 20a at the center thereof, respectively. By thrusting the end of the neck portion 20a, the thrust washer 22 and the spring washer 25 come into abutment against the bearing plate 24b.

5 shows another embodiment, and bearing holes 31 are provided in the bearing plate 30b of the attachment member 30, which includes the attachment base 30a and the bearing plate 30b, and the bearing hole 31 is provided. ), The switch pressing member 34 and the switch pressing member attached to the rotating shaft 32 for fitting the small diameter portion 32a to the large diameter portion 32b of the rotating shaft 32 via the attachment pin 33. Spring interposed between the intermediate metal washer 35 between the 34 and the bearing plate 30b, and the thrust washer 36 made of phosphor bronze and the other side of the bearing plate 30b. It is the same as the one of FIG. 6, but has the thrust washer 39 made of phosphor bronze again between the spring washer 37 and the bearing plate 30b until it has the washer 37 and the washer 38. have.

In this manner, there is an advantage that the wear resistance is further improved.

In any of the above embodiments, the caulking torque when caulking the end of the small diameter portion of the rotary shaft can be arbitrarily selected according to the weight of the display unit.

It goes without saying that the display unit may be used for a kind of OA device, including a personal computer, in addition to the word processor as in the embodiment.

This design has the following effects because it is configured as described above.

When configured as claimed in claim 1 to claim 3, the installation space can be reduced with a small diameter, and when the display unit is used, it can be stably held at an arbitrary position in the opening angle. It is possible to prevent a sudden drop during opening of the display unit as well as not being changed over.

In addition, if the configuration of claim 2 as described in claim 4, the switch of the OA device can be automatically turned on and off by a switch pressing member or a switch pressing member installed on a rotating shaft that rotates at the same time by opening and closing the display unit. It is.

At this time, if configured as described in claim 5, the phosphor bronze is excellent in viscosity and wearability can be caulking the small diameter more strongly, and also goes well with the intermediate washer or spring washer and does not wear after long time use.

When the switch pressing member and the pressing washer are rotated at the same time as configured in claim 6, even if the switch pressing member is made of synthetic resin, the friction force is not reduced.

Claims (7)

Rotating shaft combined with a support member of a display unit in which an attachment base consisting of an attachment base and a bearing plate attached to the main body of the device, and a support unit of a small diameter portion mounted at one end portion on the bearing plate of the attachment member is supported. A slider washer interposed between the neck and the bearing plate while sandwiching the small diameter part, and a thrust washer, spring washer and pressing washer interposed while the small diameter part is inserted into the center part of the other side of the bearing plate; Tilt hinge for the OA device, characterized in that configured to rotate only when the rotary shaft is applied a predetermined rotation torque by caulking the end of the small diameter portion. Rotating shaft which serves as an attachment member consisting of an attachment base and a bearing plate attached to the main body of the device, and a support member of the display unit bearing the small diameter portion mounted at one end on the bearing plate of the attachment member, and the large diameter portion of the rotation shaft. On the other side of the thrust washer and the intermediate washer and the other side of the bearing plate interposed between the switch pressing member made of synthetic resin and the small diameter part of the rotating shaft inserted between the switch pressing member and one side of the bearing plate. OA consisting of a spring washer and a pressing washer interposed while inserting the small diameter portion of the rotary shaft in the center and caulking the end of the small diameter portion is configured to rotate only when a predetermined rotation torque is applied to the rotary shaft Instrument tilt hindi. It is attached to the rotating shaft which serves as a support member of the display unit which bears the attachment member which consists of the attachment base and bearing plate which are attached to the apparatus main body, and the small diameter part attached to the bearing plate of this attachment member at one end, and the large diameter part of this rotation shaft. The rotation on the other side of the thrust washer and the intermediate washer and the other side of the bearing plate sandwiched between the switch pressing member made of a synthetic resin and one side of the bearing plate and the bearing plate interposed therebetween. It consists of thrust washer, spring washer and pressing washer interposed while inserting the small diameter part of the shaft and caulking the end of the small diameter part so that the rotation shaft rotates only when a predetermined rotation torque is applied. OA device tilt device. The tilt hinge for an OA apparatus according to claim 1, wherein the large diameter portion is integrally provided so that the center of the switch pressing portion is high. The tilt hinge for an OA device according to any one of claims 1 to 3, wherein the thrust washer is made of phosphor bronze. The tilt hinge for an OA apparatus according to claim 2 or 3, wherein the anti-rotation locking piece is provided on the pressing washer interposed on the pressing member side and protrudes to be caught by the switch pressing member. The tilt hinge for an OA device according to any one of claims 1 to 3, wherein a protruding piece for stopping rotation of the switch pressing member or the switch pressing portion at a predetermined rotational angle is protruded from the attachment member.