JPH0521078U - Tilt hinge for OA equipment - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] Prevents wear and prevents the stop-holding ability from deteriorating at any position in the opening angle of the display body even after long-term use, and also enables rotation. Provided is a tilt hinge for OA equipment, in which a shaft is provided with a special support as a supporting member. [Structure] A mounting member 5 composed of a mounting base and a bearing plate mounted on the apparatus main body 2 side, and a rotary shaft 7 also serving as a supporting member of a display body in which a small diameter portion provided at one end of the bearing plate of the mounting member is supported. , A slider washer 9 interposed between the large diameter portion of the rotary shaft and one side surface of the bearing plate while inserting the small diameter portion in the center portion thereof, and the small diameter portion of the rotary shaft in the center portion on the other side surface of the bearing plate. It consists of a thrust washer 8, a spring washer 10, and a pressing washer 11 that are inserted and inserted, and the large diameter part of the rotary shaft is provided with a mounting part by axially scraping both sides, and mounting to this mounting part Make a hole.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tilt hinge for OA equipment, which is particularly suitable for opening and closing a display body of OA equipment such as a laptop or tabletop word processor.

[0002]

[Prior Art]

 Conventionally, this type of tilt hinge requires the display body to be stably stopped and held at an arbitrary position at the use opening angle (90 ° to 135 °) with respect to the device body, and as a configuration for this, it is attached to the device body. The mounting base and the bearing plate are bent at right angles to each other, and a bearing hole is formed in the bearing plate of the mounting member that has an angled cross section.The rotary shaft with the flange is inserted through this bearing hole, and the bearing plate is sandwiched. Slider washers and spring washers on the left and right sides are inserted in the center of the rotary shaft, and the ends of the rotary shaft are caulked to generate frictional force on both sides of the bearing plate, which causes the rotary shaft to rotate at a specified rotational torque. Use the display fixed to this rotary shaft so that it will rotate only by It is known that the device can be stopped and held at any position of the formed angle.

[0003]

[Problems to be solved by the device]

 This conventional tilt hinge requires a strong caulking torque because it holds the display body at its intermediate opening angle only by frictional force, and when it is used for many years, it wears between the friction part, especially between the metal spring washer and the bearing plate. As a result, the initial rotation torque is reduced, and the stop-holding capability of the display body at the opening angle used is reduced.

Further, since the rotary shaft directly serves as a support member for the display body, special measures have to be taken with respect to its shape structure, and the conventional one also has insufficient points in this respect.

The object of the present invention is to prevent wear and prevent the stop-holding ability from deteriorating at any position in the use opening angle of the display body even after long-term use. It is intended to provide a tilt hinge for OA equipment with a special ingenuity as a supporting member.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a mounting member that is mounted on the apparatus main body side and a mounting member that includes a bearing plate, and a display body that has a bearing plate of this mounting member bearing a small diameter portion at one end. A rotary shaft that also serves as a support member, a slider washer that is interposed between the large diameter portion of the rotary shaft and one side surface of the bearing plate while inserting the small diameter portion at the center thereof, and the bearing plate It consists of a thrust washer, a spring washer, and a holding washer which are inserted while inserting the small diameter part of the rotary shaft in the center part on the other side.By swaging the end of the rotary shaft, It is designed to rotate only when rotational torque is applied, and the large diameter part of the rotary shaft is An attachment portion provided by scraping the sides in the axial direction, in this mounting part is provided with a mounting hole.

In this case, in the present invention, the thrust washer can be made of phosphor bronze.

Further, according to the present invention, the rotary shaft may be provided with a stopper pin protruding in the radial direction, and the bearing plate may be provided with a protrusion that abuts against the stopper pin.

[0009]

[Action]

 When the mounting base of the mounting member is fixed to the main body of the device and the mounting portion of the rotating shaft is fixed to the display body using the mounting screws that are inserted through the mounting holes, and the display body is opened and closed, the rotating shaft is fixed to the bearing plate. Since it is caulked with a washer in between, and it does not rotate unless there is a predetermined rotation torque, the display body can be freely stopped and held at any position of the use opening angle. is there.

At that time, by interposing the thrust washer between the metal spring washer and the bearing plate, the rotation torque does not decrease due to wear even after long-term use, and the initial rotation torque is reduced. It can be maintained.

When the thrust washer is made of phosphor bronze having excellent wear resistance, the small diameter part of the rotating shaft can be caulked with a stronger torque, and the decrease of the rotating torque of the shaft after long-term use can be further prevented. Can be done.

Further, at this time, if the rotary shaft is provided with a stopper pin projecting in the radial direction and the bearing plate is provided with a projecting piece that abuts against the stopper pin, the opening angle of the display body can be limited to a certain range. It is a thing.

[0013]

【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. Although the display body 4 is shown in the opened state in the embodiment, it is closed when not in use, and the locking pieces 4a, 4a protruding from the display body 4 are provided on the apparatus main body 2 side. It is locked by engaging with the stop holes 2a, 2a.

The tilt hinge that opens and closes the display body 4 is installed in a portion viewed from A in FIG. 1, and the structure thereof is shown in FIG. 2 and subsequent figures. This will be described in detail below.

According to the drawings, 5 is a mounting member, which is mounted on the apparatus main body 2 side. The mounting member 5 is formed by bending a mounting base 5a and a bearing plate 5b so as to have a substantially angled shape on the front surface, and a bearing hole 6 is formed in the bearing plate 5b. Reference numeral 7 is a rotary shaft which also serves as a supporting member. The rotary shaft 7 has a mounting portion 7a formed by scraping both sides on one side of the large diameter portion 7d, and a part of the display body 4 is mounted on the mounting portion 7a through mounting holes 7e, 7e. It is fixed with screws 7b and 7b. The rotary shaft 7 further has a small diameter portion 7c following the large diameter portion 7d, and the small diameter portion 7c is supported by the bearing hole 6 of the bearing plate 5. A slider washer 9 made of synthetic resin is interposed between the large-diameter portion 7d and one side surface of the bearing plate 5b by inserting the small-diameter portion 7c of the rotary shaft 7 into the insertion hole 9a of the bearing plate 5b. On the other surface side, a spring washer 10 is interposed via a thrust washer 8 made of phosphor bronze, for example, by inserting the small diameter portion 7c of the rotary shaft 7 into the insertion holes 8a and 10a. A press washer 11 is further brought into contact with one side of the spring washer 10 by inserting the small diameter portion 7c of the rotary shaft 7 into the insertion hole 11a, and by caulking the end portion of the small diameter portion 7c. In particular, as shown in FIG. 2, the slider washer 9 and the thrust washer 8 are pressed against both sides of the bearing plate 5b of the mounting member 5. The outer diameter of the large diameter portion 7d and the outer diameter of the slider washer 9 are substantially the same, and the outer diameters of the thrust washer 8 and the press washer 11 and the outer diameter of the spring washer 10 are substantially the same. 9 and the thrust washer 8 are evenly pressed against the bearing plate 5b of the mounting member 5 over the entire surface.

The spring washer 10 is formed by arranging three irregularities 10b and 10c radially and alternately at equal intervals, as shown in FIG. 3, and the surfaces of the irregularities 10b and 10c are flat. I am doing it. As a result, the spring washer 10 is pressed toward the thrust washer 8 by the holding washer 11 having an outer diameter substantially the same as that of the spring washer, and a large stable rubbing force with the bearing plate 5b is obtained. Has become a factor. The rotating shaft 7 is further provided with a stopper pin 12 projecting from the large diameter portion 7d, and the bearing plate 5b is brought into contact with the stopper pin 12 to stop the display body 4 at an opening angle of 135 °. Is projected. The caulking torque for caulking the end of the small diameter portion 7c of the rotary shaft 7 can be arbitrarily selected depending on the weight of the display body 4.

It goes without saying that the display body 4 may be of various kinds of OA equipment such as a personal computer other than the one for the word processor as in the embodiment.

[0018]

[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 display unit is small and does not occupy a large installation space, and the display body can be stably stopped and held at an arbitrary position of the opening angle for use, and the stable stop and hold ability has a thrust washer. As a result, it does not change over the years, and even if a large rotating torque is applied to the rotating shaft, it will not be twisted.

At this time, according to the second aspect, the thrust washer is well compatible with the metal spring washer, and due to its material, even if the caulking torque for the small diameter portion is increased, the thrust washer wears after many years of use. The ability to hold a stable stop at an arbitrary position of the opening angle for use with respect to the display body can be maintained for many years without causing any trouble.

According to the third aspect of the invention, the rotation angle of the rotary shaft can be limited to a certain range.

[Brief description of drawings]

FIG. 1 is a perspective view of, for example, a word processor implementing the present invention.

FIG. 2 is a front sectional view taken along line A in FIG.

FIG. 3 is an exploded perspective view of a tilt hinge.

FIG. 4 is a right side view of FIG.

FIG. 5 is a right side view showing a state in which the rotary shaft is rotated in the state of FIG.

[Explanation of symbols]

 2 Device body 4 Display body 5 Mounting member 5a Mounting base 5b Bearing plate 5c Projection piece 6 Bearing hole 7 Rotating shaft 7a Mounting portion 7b Screw 7c Small diameter portion 7d Large diameter portion 7e Mounting hole 8 Thrust washer 9 Slider washer 10 Spring washer 11 Presser foot Washers 12 Stopper pins

Claims (3)

[Scope of utility model registration request] 1. A mounting member comprising a mounting base and a bearing plate, which is mounted on the main body of the apparatus, and a rotary shaft which also functions as a supporting member of a display body which has a bearing plate of the mounting member bearing a small diameter portion at one end thereof. , A slider washer interposed between the large diameter portion of the rotating shaft and one side surface of the bearing plate while inserting the small diameter portion at the center portion thereof, and the rotating shaft at the center portion on the other side surface of the bearing plate. It consists of a thrust washer, a spring washer, and a holding washer which are inserted while inserting a small diameter part, and rotate only when a predetermined rotational torque is applied to the rotary shaft by crimping the end of the rotary shaft. As well as
A tilt hinge for OA equipment, characterized in that a large diameter portion of the rotary shaft is provided with a mounting portion by axially shaving both sides thereof, and the mounting portion is provided with a mounting hole. 2. The tilt hinge for OA equipment according to claim 1, wherein the thrust washer is made of phosphor bronze. 3. The tilt hinge for OA equipment according to claim 1, wherein the rotary shaft has a stopper pin protruding in the radial direction, and the bearing plate is provided with a protruding piece that abuts against the stopper pin.