JPH03257276A - Hop-up mechanism - Google Patents

Abstract

PURPOSE:To heighten freedom in the configuration and disposition of each member so as to make the whole device compact by engaging the protruding parts of rotary plates with the engaging parts of a hop-up plate at the time of closing the switching part of an apparatus, and rotating the rotary plates and hop-up plate by the compressive reaction of an elastic member. CONSTITUTION:When the switching part of an apparatus is closed into a specified position, the protruding parts 12d, 13d of rotary plates 12, 13 are engaged with the engaging parts 14b, 14c of a hop-up plate 14. When the switching part is further pressed to be closed totally, the rotary plates 12, 13 as well as the hop-up plate 14 are rotated and stopped in specified positions. At this time, an elastic member such as a plate spring 19 interposed between the hop up plate 14 and a base 10 is compressed. The switching part is then opened, and the hop-up plate 14 and rotary plates 12, 13 are rotated by the compressive reaction of the elastic member so as to push the switching part up.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a device having a main body for input operations and an opening/closing section as a display section, such as a laptop personal computer. This relates to a hop-up mechanism that opens slightly from a completely closed state when released, making it easier to open and close.

(Prior Art) Conventionally, burner computers, word processors, LCD televisions, etc. have been commercially available with opening/closing parts such as display panels overlapping the main body so that they can be folded and stored for convenient portability. There is.

In this type of equipment, in order to make it easier to raise the opening/closing part, when the opening/closing part is released, it opens slightly, and when closing the opening/closing part, the opening/closing part must be pressed so that it does not collide with the main body. It was configured so that it could not be completely closed.

Conventional equipment of this kind for this configuration is 1l.
A hop-up mechanism as shown in Figure J4 was used.

A base 1 shown in the figure is fixed to the main body of the device, and a shaft 2 is rotatably attached to the base 1.

An opening/closing portion of the device, a cam 3, and a coil spring 4 for suppressing rotation of the shaft 2 are fixed to the shaft 2.

When the opening/closing part is opened, the shaft 2 and cam 3 move as indicated by the arrow A.
It rotates in the direction of arrow B, and when it is closed, it rotates in the direction of arrow B.

When the protrusion 3a of the cam 3 is in a position where it abuts the end 4a of the coil spring 4 as shown, the opening/closing section is in a slightly open state.

Now press the opening/closing part and move the shaft 2 and cam 5 to arrow B
When the cam 3 is further rotated in the direction shown in FIG.

When the opening/closing section is released in this state, the cam 3 rotates in the direction indicated by the υ arrow by the force of the coil spring 4 and remains stationary in the state shown.

That is, at this time, the opening/closing part is slightly opened and hopped up.

(Problem to be Solved by the Invention) Generally, a strong spring force is required to lift the opening/closing part of the display part of a personal computer, etc. Therefore, the wire diameter of the coil spring 4 in the hop-up mechanism is increased and the spring itself is made larger. □ Therefore, in the past, there was a problem that the entire hop-up mechanism became larger.

In particular, in the conventional example 3, the coil spring 4, which restricts the rotation of the shaft 2 so that it can maintain its position when the opening/closing part is opened, is also used during hop-up, so the arrangement and wire diameter Due to this limitation, it was difficult to miniaturize the device by changing its position, etc.

An object of the present invention is to provide a hop-up mechanism that is smaller and easier to manufacture.

(l! Means for Solving the Problem) The hop-up mechanism of the present invention includes a base attached to the main body of the device, an arm attached to the opening/closing part of the device and rotatably pivoted to the base, A rotating plate that rotates together with the arm and has a protrusion; a hop-up plate that rotates together with the movable plate by engaging the retaining part with the protrusion of the rotating plate when the opening/closing part is closed to a predetermined position; The elastic member is interposed between the hop-up plate and the base and is compressed by the rotation of the hop-up plate, and the elastic member rotates the hop-up plate and the rotation plate by the compressive force.

(Function) In the hop-up mechanism of the present invention, when the opening/closing part of the device is closed with the housing at a predetermined position, the protrusion of the rotating plate engages with the retaining part of the hop-up plate, and further presses the opening/closing part. When it is completely closed, the hop-up plate rotates together with the rotating plate and stops at a predetermined position.

At this time, the elastic member interposed between the hop-up plate and the pace is compressed, and when the opening/closing part is released, the hop-up plate and the rotating plate rotate due to the compression reaction force of this elastic member. Push up the opening/closing part.

As a result, the first opening/closing section is in a slightly opened hop-up state.

(Embodiment) FIG. 1 shows # of a hop-up mechanism according to an embodiment of the present invention.
2 (A) to (C) are diagrams showing the operation of the hop-up mechanism shown in FIG. 1, and FIG. 3 (A)
1 to 2C are diagrams showing opening and closing operations of a device such as a personal computer to which the hop-up mechanism shown in FIG. 1 is attached.

10 is a pace, which is attached to the main body 20 of the device shown in FIG.

This pace 10 includes a mounting portion 10 fixed to the main body 20.
a, and a support portion 10b that stands up vertically from the mounting portion 10a and has a hole 10c in the center thereof.

A stopper 10d that comes into contact with a hop-up plate, which will be described later, is provided on the side surface of the support portion 10b.

11 is a shaft, and a small diameter portion 11 that fits into the hole 10c
a, a large-diameter portion 11b, and a rectangular attachment portion 11c protruding from the end surface of the large-diameter portion 11b.

The outer periphery of the small diameter portion 11a of the shaft 11 is provided with a single groove 11d formed in the axial direction.

Reference numerals 12 and 13 designate the first and 20th rotating plates, which have a disk-like planar shape, and holes 12a and 13a are provided in the centers of the plates, respectively. Inner protrusions 12b and 13b that fit into the groove 11d are provided.

A protrusion 13d bent laterally is provided on the outer periphery of the second rotating plate 13.

Reference numeral 14 denotes a hop-up plate, which has a hole 14a that fits the small-diameter portion 11a, and first holes provided at a predetermined interval on the outer periphery of the hole 14a.
, second engaging portions 14b and 14c, and a pressing portion 14d protruding toward the mounting portion 10a of the base 10.

15 and 16 are ring-shaped disk springs, and 17 is a bushing nut attached to the tip of the small diameter portion 11a of the shaft 11.

Reference numeral 18 denotes an arm that is attached to an opening/closing section 21 such as a display section of the device shown in FIG.
It has a hole 18a that fits.

Reference numeral 19 designates a leaf spring υ as an elastic member, which is fixed on the mounting portion 10a of the base 10 and disposed between the mounting portion 10a and the pressing portion 14d of the hop-up plate 14.

As shown in FIG. 1, when the small-diameter portion 11a of the shaft 11 is passed through the hole 10e of the base 10, the small-diameter portion 11a has a first rotating plate 12, a hop-up plate 14, and a second rotating plate 1.
3. These parts are attached in the order of disc springs 15, 16 and bushing nuts 17, and fixed with bush nuts 17 so that each part is pressed against the disc springs 15, 16 by the elasticity of the disc springs 15, 16. The housing and arm 18 are attached to the attachment portion 11c of the shaft 11 in advance or after the above-mentioned parts are assembled.

The first and second rotating plates 12.13 have their protrusions 12b, 1
3b fits into the groove 11d of the shaft 11, so that it rotates together with the shaft 11.

These first and second rotating plates 12 and 13 and the hop-up plate 1
4 and the supports 5iob of the base 10 are arranged alternately and are pressed together by disc springs 15, 16.

Therefore, due to friction between these parts, the shaft 11
A relatively large force is required to rotate the arm 18, which allows the arm 18 to be stopped at any angle.

The rotational torque of the shaft 11 can be changed arbitrarily by increasing the number of rotating plates 12, 13 and the number of disc-shaped members inserted between them.

Further, when the second rotating plate 15 rotates by a predetermined angle, the protrusion 13d provided on the second rotating plate 13 connects the first and second engaging portions 14b and 14c of the hop-up plate 14. The operation of the hop-up mechanism shown in FIG. 1 will be explained using the hop-up mechanism arranged so as to be in contact with the hop-up mechanism.

As shown in FIG. 2(A), the protrusion 1 of the second rotating plate 13
3d is in contact with the second engaging portion 14c of the hop-up plate 14, as shown in FIG. 18 is attached to the shaft 11.

Further, in this state, the side surface of the hop-up plate 14 is set to abut against the stopper 10d of the base 10, so that rotation to the left in the figure is prevented.

In this state, when the opening/closing part 21 is tilted toward the main body 20, the arm 18 rotates to the right in the figure, as shown in FIG. 13d rotates until it abuts on the first engaging portion 14b of the hop-up plate 14.

In this way, the protrusion 13d of the second rotating plate 13 and the first engaging part 14b of the hop-up plate 14 are brought into contact with each other.
Then, as shown in FIG. 3(B), the opening/closing part 21 is in a slightly open state.

Here, when the opening/closing part 21 is pressed to the state shown in FIG. As shown in figure (C), it rotates to the right in the figure.

At this time, it is interposed between the pressing part 14d of the hop-up plate 14 and the mounting part 10a of the base 10. The leaf spring 19 is compressed, and as shown in the figure, applies a force to the hop-up plate 14 in the direction of counterclockwise rotation by its compression reaction force.

In this state, if the opening/closing part 21 is released, the arm 1
8. The second rotary plate 13 and the hop-up plate 14 are in the rotatable state. The hop-up plate 14d is rotated to the left by the force of the leaf spring 19, and the protrusion 1 is attached to the first engaging portion 14b.
The 20th rotating plate 13 with which 3d is engaged also rotates to the left.

As a result, the arm 18 also rotates to the left, resulting in the state shown in FIG. 2(B), and the opening/closing portion 21 becomes the state shown in FIG. 3(B).

(Effects of the Invention) According to the present invention, it is possible to use a coil spring, and the leaf spring dedicated to hop-up is arranged at a location away from the shaft, so the degree of freedom in the shape and arrangement of each component is increased. The height is 1 mm, and the entire device can be miniaturized.

In particular, the tilt mechanism employs a structure in which discs are overlapped and pressed together, and the 20th rotating plate and hop-up plate are also made of plate material, making it possible to significantly reduce the axial dimension of the shaft. can.

It can be assembled by simply passing each part through the casing and shaft, making it easier to manufacture.

Furthermore, by setting the leaf spring so that a slight force is always applied to the hop-up plate, it is possible to prevent play between the parts.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing a hop-up mechanism according to an embodiment of the present invention, FIGS. 2(A) to (C) are diagrams showing the operation of the hop-up mechanism shown in FIG. 1, and FIG. A) to (C) are diagrams showing the opening and closing operations of a device such as a personal computer to which the hop-up mechanism shown in FIG. 1 is attached, and FIG. 4 is a perspective view showing the conventional hop-up mechanism. 10...Base, 11...Shaft, 12.13.
...first and second rotating plates, 14...hop-up plate,
15.16...Disc spring, 17...Snap ring,
18... Arm, 19... Leaf spring, 20... Main body, 21... Opening/closing part. 10

Claims (1)

[Scope of Claims] A base attached to a main body of a device; an arm attached to an opening/closing part of the device and rotatably pivoted to the base; the arm rotates together with the arm and has a protrusion. a rotating plate; a hop-up plate whose engaging portion engages with a protrusion of the rotating plate and rotates together with the movable plate when the opening/closing portion closes to a predetermined position; and the hop-up plate and the base. An elastic member is interposed between the hop-up plate and compressed by the rotation of the hop-up plate, and when the opening/closing portion is released, the compression reaction force causes the rotation plate to rotate together with the hop-up plate to open the opening/closing member to a predetermined position. A hop-up mechanism characterized by comprising a member and.