JP2002250330A - Hinge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an epoch making hinge device of a simple structure capable of being easily designed so as to produce rotational resistance large than that of a frictional resistance imparting structure by a plurality of conventional frictional projections, reducing wear of a frictional part, causing less inclination at a pivotally mounted part of first and second connection bodies, and allowing a smooth rotational operation. SOLUTION: In this hinge device, at least the pivotally mounted part 5 of the first connection body 3 and the pivotally mounted part 5 of the second connection body 4 are formed in a plate shape, respectively the plate shaped pivotally mounted parts are overlappingly fastened to each other for pivot mounting, and projected lines 6 of a shape continued in the rotational direction of the pivotally mounted part 5 as the frictional part 6 is formed on the sliding surface 5A of the plate-like pivotally mounted part 5 of the overlappingly pivotally mounted first connection body 3 or the sliding surface 5A of the plate-like pivotally mounted part of the second connection body 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge device used for rotatably connecting a first member and a second member.

[0002]

2. Description of the Related Art Conventionally, a second connector connected to an appropriate second member is pivotally connected to a first connector connected to an appropriate first member. Wear
A plurality of friction protrusions are provided on the pivot portion on the first connector side or the pivot portion on the second connector side to abut against the pivot portion on the second connector side or the pivot portion on the first connector side. 2. Description of the Related Art A hinge device has been implemented in which a frictional resistance caused by abutment of a plurality of friction protrusions causes a resistance to a rotation operation of a pivot portion.

[0003] The present invention relates to an improvement of a hinge device having a rotation resistance imparting structure of this type, in which a sliding surface of a pivot portion which is pivotally connected in an overlapped state is provided with a rotation of the pivot portion. By providing a ridge having a shape that is continuous in the direction and using the ridge as a friction portion, a strong rotation resistance can be generated because the friction surface is wider than a plurality of conventional friction protrusions. It has a simple structure that can be designed and realized easily, can reduce the wear of the friction portion, hardly causes the pivotal connection between the first connector and the second connector to be inclined, and can smoothly rotate. An innovative hinge device is provided.

[0004]

The gist of the present invention will be described with reference to the accompanying drawings.

A hinge device for pivotally connecting a first member 1 and a second member 2, wherein a first member 3 connected to the first member 1 or the second member 2 is connected to the second member 2 or the first member 2. Member 1
Is pivotally connected to the second connecting member 4 connected to the first connecting member 3 or the second connecting member 4 on the second connecting member 4 side.
Is provided with a friction portion 6 which comes into contact with the pivot portion 5 on the second connector 4 side or the pivot portion 5 on the first connector 3 side, and pivots due to frictional resistance caused by the contact of the friction portion 6. In the hinge device configured to generate resistance to the rotation operation of the portion 5, at least the pivot portion 5 of the first coupling member 3 and the pivot portion 5 of the second coupling member 4 are formed in a plate shape. The plate-shaped pivot portions 5 are tightened and overlapped to be pivotally attached to each other, and the sliding surface 5A of the plate-shaped pivot portion 5 of the first connector 3 or the plate-like shape of the second connector 4 The hinge device according to the present invention is characterized in that a ridge 6 having a shape continuous in the rotation direction of the pivot portion 5 is formed as the friction portion 6 on the sliding surface 5A of the pivot portion 5.

[0006] Further, the pivotal connecting portion 5 on the first connecting body 3 side is provided.
Around the pivot shaft 7 or around the pivot shaft 7 of the pivot portion 5 on the side of the second connector 4, the friction portion 6 having a length is provided so as to surround the pivot shaft 7. A hinge device according to claim 1, wherein:

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention (how to implement the invention) will be briefly described with reference to the drawings, showing the operational effects thereof.

[0008] Sliding surface 5 of plate-shaped pivot portion 5 on first connector 3 side
A or the sliding surface 5A of the plate-shaped pivot portion 5 on the second connector 4 side
Is provided on the sliding surface 5A of the pivot portion 5 on the second connector 4 side or the sliding surface 5A of the pivot portion 5 on the first connector 3 side.
, And a frictional resistance is generated, so that the pivoting operation of the pivotally connecting portion 5 between the first connecting body 3 and the second connecting body 4 generates a resistance. Therefore, when the second member 2 is rotated with respect to the first member 1, a rotation resistance is generated.

Further, since the friction portion 6 is a ridge 6 having a shape that is continuous in the direction of rotation of the pivot portion 5, the friction surface has a very large friction surface as compared with the conventional friction projection, and this allows a strong rotation. It can be easily set to cause dynamic resistance,
Wear of the friction portion 6 is also reduced.

Further, in the case of the conventional example having a plurality of friction projections, if the projection heights of the friction projections vary, the second connection body may be pivotally attached to the first connection body in an inclined state. However, according to the present invention, the protrusions 6 make it easy to make the degree of protrusion of the pivoting portion 5 from the sliding surface 5A substantially uniform, so that the first connecting member 3 and the second connecting member 4
There is no such thing that the pivot 5 is tilted and pivoted,
Since the substantially uniform protruding ridges 6 generate a substantially constant frictional force in any rotation area, there is no resistance unevenness at the time of the rotation operation, and the rotation operation of the pivot portion 5 can be smoothly performed. Will be

Further, the present invention has a structure in which the connecting portion 5 of the first connecting member 3 and the second connecting member 4 is simply formed as a plate and is superposed on the first connecting member 3 or the second connecting member 4. Since the friction surface 6 can be configured simply by providing the ridge 6 having a shape continuous in the rotation direction of the pivot portion 5 on the sliding surface 5A of the pivot portion 5 of the body 4, this configuration can be easily designed and realized. Configuration
Excellent mass productivity and inexpensive products can be provided.

Also, for example, around the pivot shaft 7 of the pivot portion 5 on the first connector 3 side or around the pivot shaft 7 of the pivot portion 5 on the second connector 4 side, If the friction portion 6 having a length is provided so as to surround the pivot shaft 7, the friction portion 6 that reliably exerts the above-described operation and effect can be simply designed and realized, and becomes more practical.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described with reference to the drawings.

This embodiment shows a case where the present invention is applied to an in-vehicle audio unit with an in-dash monitor as shown in FIG. 1, in which a main body is a first member 1 and a monitor is a second member 2. The hinge device of the present invention is applied to a pivotable structure in which a monitor unit 2 protruding in a horizontal state from a main body unit 1 can be brought into a use state in which the monitor unit 2 is activated by being rotated about 90 degrees.

More specifically, although not shown in detail in this embodiment, the first embodiment is connected to a slide portion provided in the main body 1 so as to slide in the front-rear direction of the main body 1. The connecting body 3 and the second connecting body 4 connected to the monitor 2 are pivotally connected to each other.

The first connecting member 3 is formed of a band-shaped plate as shown in FIGS. 2 and 3, and is attached to one end (right end in FIGS. 2 and 3) of the plate as the first connecting member 3. A bearing hole 8 is formed, and one end of the bearing hole 8 is used as a pivot portion 5, and the other end (the left and right sides in the drawing) is used as a connecting portion 9 for connecting to a slide portion provided on the main body 1.

The second connecting member 4 is formed of a band-shaped plate member as shown in FIGS. 2 and 3, and a bearing hole 10 is formed at an intermediate portion of the plate member serving as the second connecting member 4, thereby forming the intermediate member. The portion is a pivot portion 5, and both side portions of the pivot portion 5 are connection portions 11 for connecting to the monitor portion 2 as shown in FIG.

Then, the plate-shaped pivot portion 5 of the first connecting member 1 and the plate-shaped pivot portion 5 of the second connecting member 4 are superimposed on each other, and the two bearing holes 8 and 11 are aligned. The plate-like pivot portions 5 are overlapped with each other in a tightened state by pivotally inserting the pivot shaft 7 and caulking, so that the plate-like pivot portions 5 are pivotably connected to each other.

At this time, as shown in FIGS. 3 and 6, the pivot shaft 7 is provided with a ring-shaped disc spring 13, and the disc spring 13 allows the pivot portion 5 of the first connector 1 to be connected. The superposed state of the superposed portion 5 and the pivotal connection portion 5 of the second connector 4 is elastically urged, and a friction portion 6 described later is pressed.
The frictional resistance is ensured.

In the drawing, reference numeral 12 denotes a first connecting member 3 using a screw or the like.
And a second connector 4 for attaching the main body 1 and the monitor 2 to the main body 1 and the monitor 2.

In this embodiment, as shown in FIG.
A stopper piece 14 projecting toward the pivot portion 5 of the first connector 3 is formed in the pivot portion 5 of the second connector 4, and the notch recess 15 in which the stopper piece 14 is located is formed in the first recess 3. A rotation range restricting structure is formed on the pivotal connection portion 5 of the connecting body 3 and is in a non-rotatable state when the stopper piece 14 is locked at an end of the cutout recess 15. 5 shows a case where the second connector 4 is configured to be able to rotate about 90 degrees with respect to the first connector 3 as shown in FIG. In addition, both two-dot chain lines in FIG.
The two-dot chain line 1A shows the front surface of the main unit 1 in a state where the monitor unit 2 is horizontal and stored in the main unit 1, and the two-dot chain line 1B shows that the monitor unit 2 The front surface of the main body 1 is shown in a state where the main body 1 is vertically protruded from the main body 1.

In the present embodiment, the pivotal connecting portion 5 on the first connector 3 side
A friction portion 6 is provided in contact with the pivot portion 5 on the second connecting body 4 side so that frictional resistance caused by the contact of the friction portion 6 causes resistance to the pivoting operation of the pivot portion 5. Make up.

More specifically, on the sliding surface 5A of the plate-like pivot portion 5 of the first connector 3 that is superimposed and pivotally connected, a ridge 6 having a shape that is continuous with the pivoting direction of the pivot portion 5 is formed. The ridge 6 serves as the friction portion 6 and the sliding surface 5A of the pivotal portion 5 of the second connector 4.
It is configured so as to abut against.

The friction portion (projecting ridge) 6 is provided around the pivot shaft 7 (bearing hole 8) on the sliding surface 5A of the pivot portion 5 of the first connecting member 3, and the pivot portion is provided at the pivot portion. It is formed on a ridge 6 having a length that surrounds the mounting shaft 7. More specifically, as shown in FIG. 3, arc-shaped rib ridges 6 are formed at upper and lower portions around the bearing hole 8 to form a friction portion 6 that is continuous in the pivoting direction of the pivot portion 5. FIG.

In this embodiment, as shown in FIG.
By forming two upper and lower portions around the bearing hole 8 on the back surface of the pivot portion 5 of the first connector 3 in an arc shape, the sliding portion 5A of the pivot portion 5 serves as the friction portion 6. The rib ridge 6 is provided in a protruding manner.

Therefore, since the rib ridges 6 are integrally formed on the pivot portion 5 of the first connecting member 3 in this manner, this configuration can be simply designed and realized, and is excellent in mass productivity. Thus, it can be configured at low cost.

The present invention is not limited to the present embodiment, and the specific configuration of each component can be appropriately designed.

[0028]

As described above, according to the present invention, since the friction portion is formed as a ridge having a shape continuous in the rotation direction of the pivot portion, the friction surface is much wider than the conventional friction projection. It is possible to easily set strong rotation resistance, and wear of the friction portion is reduced.
In the case of the conventional example having a plurality of friction protrusions, if the protrusion heights of the friction protrusions vary, the second connection body is pivotally attached to the first connection body in an inclined state. In the present invention, the protrusions make it easy to make the degree of protrusion of the pivoting portion from the sliding surface substantially uniform, whereby the pivoting portion between the first connector and the second connector tilts and pivots. There is no wearing, and since a substantially uniform frictional force is generated in any rotation area by the substantially uniform protruding ridge, there is no resistance unevenness at the time of rotation operation, and This is a revolutionary hinge device with a simple structure that is extremely practical, such as smooth rotation operation.

According to the second aspect of the present invention, the friction portion (projection) that reliably exerts the above-mentioned operation and effect can be easily designed and realized, which is more practical.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a use state of the present embodiment.

FIG. 2 is a perspective view showing the embodiment.

FIG. 3 is an exploded perspective view of the present embodiment.

FIG. 4 is a schematic explanatory perspective view showing an attachment structure between a monitor unit and a second connector according to the embodiment.

FIG. 5 is an explanatory side view in a use state of the embodiment.

FIG. 6 is a sectional view of a pivot portion according to the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st member 2 2nd member 3 1st connection body 4 2nd connection body 5 Pivot part 5A Sliding surface 6 Friction part (projection) 7 Pivot axis

Claims (2)

[Claims] 1. A hinge device for pivotally connecting a first member and a second member, wherein the hinge device is connected to a first member connected to the first member or the second member, and is connected to the second member or the first member. The second connector is pivotally connected to the first connector or the second connector, and the second connector or the first connector is connected to the first connector or the second connector. A hinge portion configured to provide a friction portion that abuts against the first connecting member, wherein a frictional resistance caused by the abutment of the friction portion causes resistance to the rotation operation of the pivot portion. And the pivot portion of the second connector is formed in a plate shape, and the plate-shaped pivot portions are fastened to each other by pivoting and superimposing, and the tabular pivot of the first coupling member to be superimposed and pivotally coupled is formed. A convex ridge having a shape continuous with the pivoting direction of the pivot portion as the friction portion on the sliding surface of the portion or the sliding surface of the plate-like pivot portion of the second connector. A hinge device comprising: 2. A length around the pivot axis of the pivot portion on the first connector side or around the pivot axis of the pivot portion on the second connector side so as to surround the pivot axis. The hinge device according to claim 1, wherein the friction portion having a protrusion is provided.