JPH0962399A - Tilt hinge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the durability of a cable by inserting the cable which connects a device main body to a display in the axial direction of a rotary shaft provided with a large diameter part supported with a mounting member to support the display. SOLUTION: The mounting member 5 mounted, for example, on the device main body 2 side of a laptop type personal computer consists of a mounting base 5a and a bearing plate 5b, and a bearing hole 6 is provided in the bearing plate 5b. The small diameter part 7a of the rotary shaft 7 used also as a supporting member is supported with the bearing hole 6, and the large diameter part 7b is provided in the rotary shaft 7 by the small diameter part 7a, and also, a through hole 7c piercing in a direction of axial center is provided. The cable 8 led out of the device main body 2 side is extruded to the inside of the display body 4 piercing through the through hole 7c. Also, a deformed mounting part 7b is provided by the large diameter part 7b of the rotary shaft 7, and the protrusive part 3 of display body 4 is mounted via a bracket 9 having they terminal part for the deformed mounting part 7b inserted and fitted in the deformation hole 9a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention 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 personal computer or a word processor.

[0002]

2. Description of the Related Art The applicant of the present application has a mounting member to be mounted on the apparatus body side, a rotary shaft having a bearing plate of the mounting member for bearing a small diameter portion to support the display body, and the rotary shaft and the bearing. Structure in which various washers are interposed between one side surface of the plate and between the other side surface of the bearing plate and the crimped end of the rotary shaft so that the rotary shaft rotates only when a predetermined rotational torque is applied. A simple and stable friction torque can be obtained over the full opening angle of the display body,
We proposed a tilt hinge that supports the display of OA devices such as laptop computers and word processors.

[0003]

DISCLOSURE OF THE INVENTION In a laptop computer or word processor, a display body is attached to a device body to which a keyboard or the like is attached via a tilt hinge so that the display body can be freely opened and closed. It is required mainly because of design problems to mount the cable connecting the body and the body invisible. Further, in recent years, the durability of these OA devices has been remarkably improved, so that the tilt hinges are required to have higher durability than conventional ones.

An object of the present invention is to allow a cable between a main body of a device and a display body to be passed inside, and
The purpose is to provide a tilt hinge with improved durability.

[0005]

In order to achieve the above-mentioned object, the present invention is directed to a mounting member mounted on the apparatus main body side, and a large shaft supported by a bearing plate of the mounting member for supporting the display body. A rotating shaft having a diameter portion and a friction mechanism provided between the rotating shaft and a bearing plate, wherein a cable connecting the device body and the display body in the axial direction of the rotating shaft. An insertion hole is provided for inserting the.

In this case, according to the present invention, the friction mechanism is fixed on both sides of the bearing plate, a pair of friction washers, one fixed on the bearing plate and the other fixed on the rotary shaft. The friction washer is composed of a spring washer that is pressed against the rotary shaft so as to rotate together with the rotary shaft, and the sliding surface that is pressed against the friction washer fixed to the rotary shaft of the bearing plate is subjected to nanameko processing. Further, it is possible to apply a lubricant to each of the spring washer that comes into contact with the portion to be ground and the friction washer that comes into contact with the spring washer.

Further, the present invention is characterized in that the rotating shaft has an E
A ring-fixed actuation plate may be mounted for rotation with the rotating shaft.

[0008]

Since the cable connecting the device body side and the display body passes through the insertion hole provided in the axial direction of the rotary shaft of the tilt hinge, it does not stand out to the outside.
You do not have to worry about pinching the cable when opening or closing the display.

When the display body is opened and closed, the rotary shaft rotates together with the friction washer fixed to the rotary shaft and the padded portion of the bearing plate, and another friction plate fixed to the bearing plate and the rotary shaft. Friction torque is generated between the rotating spring washer, but the pressure contact sliding surface against the friction washer is always constant, and the lubricating oil remains in the slotted part and the recess of the spring washer for a long time. It can perform a lubricating action.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show an embodiment of the present invention. In FIG. 1, a display body 4 using a liquid crystal is provided in a main body 2 of a laptop personal computer provided with a keyboard 1, for example.
Is attached via the attachment portion 3 so as to be openable and closable. 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, 4a protruding from the display body 4 are provided on the apparatus main body 2 side. The locking holes 2a, 2a are engaged and locked.

The tilt hinge for opening and closing the display body 4 is installed in the portion viewed from A in FIG. 1, and the structure thereof is shown in FIG. 2 and subsequent figures.

According to the drawings, reference numeral 5 in FIGS. 2 to 4 denotes a mounting member, which is mounted on the apparatus main body 2 side. As shown in FIG. 2, the mounting member 5 is used as the mounting base 5.
a and a bearing plate 5b, and a bearing hole 6 is provided in the bearing plate 5b. A rotary shaft 7 which also serves as a support member bears a small diameter portion 7a in the bearing hole 6, and the rotary shaft 7 is provided with a large diameter portion 7b following the small diameter portion 7a and penetrates in the axial direction. As shown in FIG. 2, the cable 8 led out from the apparatus body 2 side extends through the insertion hole 7c and into the display body 4 as shown in FIG. A deformation attachment portion 7d is provided following the large diameter portion 7b of the rotary shaft 7, and the protruding portion 3 of the display body 4 is inserted through the bracket 9 in which the end portion of the deformation attachment portion 7d is fitted into the deformation hole 9a. It is installed.

Next, the friction mechanism 10 will be described. The large diameter portion 7b of the rotary shaft 7 and the bearing plate 5 are described.
A first friction washer 11 made of, for example, phosphor bronze is interposed between the one side surface and the one side surface while inserting the small diameter portion 7a into the insertion hole 11a. Friction washer 1
A locking projection 11b is projected from the outer circumference of the large diameter portion 7b.
Engages with a locking portion 7e provided on the outer periphery of the. A second friction washer 12 and a spring washer 13 made of, for example, phosphor bronze are also provided on the other side of the bearing plate 5b.
The through holes 12a and 13a are formed in the small diameter portion 7 of the rotary shaft 7.
It is interposed by passing it through a. A locking projection 12b is projected from the outer periphery of the second friction washer 12 so as to engage with a locking hole 5c provided in the bearing plate 5b. The flat washer 14 for pressing is further brought into contact with the spring washer 13 by inserting the small diameter portion 7a of the rotary shaft 7 into the insertion hole 14a, and by caulking the end portion of the small diameter portion 7a,
In particular, as shown in FIG. 2, the first friction washer 11 and the second friction washer 12 are attached to the mounting member 5.
The bearing plates 5b can be pressed against both sides. The outer diameter of the large diameter portion 7b and the outer diameter of the first friction washer 11 are substantially the same, and the pressing flat washer 14
Since the outer diameters of the first friction washer 11 and the second friction washer 12 are substantially the same as the outer diameters of the second friction washer 12 and the spring washer 13, the bearing plate 5b of the mounting member 5 is evenly distributed over the entire surface. Will be pressed against the spring washer 13. Then, the first friction washer 11
The sliding surface of the bearing plate 5b with which the
And a large number of thin irregularities 15a and 15b as shown in FIG.
... has been subjected to the nanameko processing 15, and the nanameko processing part 15 and the first friction washer 1
1 and between the spring washer 13 and the second friction washer 12 are coated with a lubricant (not shown). Further, the working plate 16 is fitted into the deformation mounting portion 7d of the rotary shaft 7 by inserting the deformation mounting portion 7d into the deformation hole 16a, and the circumferential groove 7
It is fixed so as not to come off by an E ring 17 which is fitted in e from the radial direction. In particular, as shown in FIG. 2, reference numeral 18 is, for example, a micro switch, which is opened and closed by the operating piece 16b of the operating plate 16 via the rotary shaft 7 which rotates together with the opening and closing of the display body 4.

[0014]

According to the first aspect of the present invention, the cable connecting between the apparatus main body and the display body passes through the rotary shaft of the tilt hinge, so that the design can be made inconspicuous without being conspicuous to the outside. Further, there is an effect that the cable is not caught when the display body is opened and closed.

According to the second aspect of the present invention, the same effect as that of the first aspect is obtained, and the friction surface is between the first friction washer and the bearing plate, and between the second friction washer and the spring washer. As a result of the limitation, in addition to the effect that the torque is stabilized, the sliding surface of the bearing plate that is in contact with the first friction washer is subjected to nanameko processing, and the first friction plate that is in contact with the portion subjected to nanameko processing is applied. Since the lubricant is applied between the second friction washer and the spring washer, the lubricant is retained by the recesses even after long-term use, and as a result, the lubricant has a good hold and wear on the friction surface is eliminated. Therefore, it is possible to effectively prevent generation of abnormal noise or squeak noise and reduction of torque.

According to the third aspect of the invention, it is possible to obtain an effect that it becomes extremely easy to attach the operation plate for operating the switch and other detection sensors.

[Brief description of drawings]

FIG. 1 is a perspective view of a laptop computer embodying the present invention.

FIG. 2 is an enlarged cross-sectional view of a portion viewed from A in FIG.

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

FIG. 4 is a plan view of a rotating shaft.

FIG. 5 is a side view of a bearing plate that has been subjected to nanakome processing.

FIG. 6 is a partially enlarged cross-sectional view of the processing of slotted rice applied to the bearing plate.

[Explanation of symbols]

 2 device body 3 mounting part 4 display body 5 mounting member 5a mounting base 5b bearing plate 5c locking hole 6 bearing hole 7 rotating shaft 7a small diameter part 7b large diameter part 7c insertion hole 7d deformation mounting part 7e locking part 8 cable 9 bracket 10 Friction mechanism 11 1st friction washer 11b Locking projection 12 12 2nd friction washer 12b Locking projection 13 Spring washer 14 Presser washer 15 Naked rice processing 16 Working plate 17 E ring

Claims (3)

[Claims] 1. A mounting member mounted on the apparatus main body side, a rotary shaft having a large diameter portion axially supported by a bearing plate of the mounting member for supporting a display body, and the rotary shaft and the bearing plate. A tilt hinge provided with a friction mechanism provided therebetween, characterized in that an insertion hole for inserting a cable connecting between the apparatus main body and the display body is provided in an axial direction of the rotary shaft. 2. A mounting member mounted on the apparatus main body side, a rotary shaft having a large diameter portion axially supported by a bearing plate of the mounting member for supporting a display body, and the rotary shaft and the bearing plate. And a friction mechanism provided between the friction plate and an insertion hole for inserting a cable in the axial direction of the rotary shaft, and the friction mechanism includes one on each side of the bearing plate and the other on the bearing plate. The pair of friction washers fixed to the rotary shaft and interposed therebetween, and the spring washer pressed against the friction washer fixed to the bearing plate side so as to rotate together with the rotary shaft, the rotation of the bearing plate With the friction washer fixed on the shaft side The sliding surface to be press-contacted has been subjected to nanamekoing, and further, lubricant has been applied between the friction washer that comes into contact with the portion subjected to nanamekoing and between the friction washer that comes into contact with the spring washer. The feature is a tilt hinge. 3. An operating plate fixed to the rotary shaft by an E ring so as to rotate together with the rotary shaft.
The tilt hinge according to any one of 1.