JPH08272303A - Display device - Google Patents

Abstract

PURPOSE: To provide a display device with which the gentle and smooth turning of a universal joint for changing the direction of display means is possible. CONSTITUTION: The display means is provided with a curving part 23 by approximately perpendicularly curving the bottom end of the straight part 22 of the display means. The curving part 23 internally engages a cruciform internal engaging groove 17 and prevents the display means 21 from pulling and rotating. At this time, the entire part of the curving part 23 is internally engaged with the internal engaging groove 17 and is prevented from coming into contact with a spherical projection 7 or the curving part 23 in contact with the spherical projection 7 is pushed into the internal engaging groove 17 to put the spherical projection 7 and the bottom surface of curving part 23 into contact with each other. Then, the strong rubbing of the curving part 23 and the spherical projection 7 against each other and the consequent generation of abnormal noises and shaking do not arise. The flawing of the surface of the spherical projection 7 does not arise either and the cap body 12 is gently and smoothly turned.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spherical joint which is fixed to a mounting device such as a shelf or a stand, and a free joint which is elastically fitted to a truncated spherical surface formed on the inner circumference of the lower end of a cap body. The present invention relates to a display device in which a display tool is inserted into the cap body, the bent portion at the lower end is engaged with the edge of the lower end hole of the through hole to prevent the cap from coming off.

[0002]

2. Description of the Related Art Japanese Unexamined Utility Model Publication No. 6-76987 discloses a truncated spherical surface having a spherical projection fixed to a mounting device such as a shelf or a stand proposed by the applicant of the present invention formed on the inner circumference of a cap body. A flexible joint is elastically fitted to the cap to form a free joint, and a display tool is inserted into an insertion hole formed in the truncated concave spherical surface formed in the cap body so that the bent portion at the lower end is a lower end hole of the insertion hole. A display device is disclosed that is engaged with an edge to prevent the device from coming off.

[0003]

However, in the display device having the above structure, when the cap body forming the free joint is rotated to change the direction and inclination of the display tool, the bent portion at the lower end of the display tool and the spherical shape. There is a problem in that the free joint may not be able to rotate smoothly due to strong friction between the protrusion and the abnormal noise or scratches on the surface of the spherical protrusion. The present invention has been made to solve the above problems, and an object of the present invention is to provide a display device capable of smoothly rotating a free joint for changing the direction of a display tool. is there.

[0004]

In order to achieve the above object, a display device of the present invention is a truncated recess having a spherical protrusion fixed to a mounting device such as a shelf or a stand on the inner circumference of a cap body. A flexible joint is elastically fitted to the spherical surface to form a free joint, and a display device is inserted into an insertion hole formed in the truncated concave spherical surface formed in the cap body so that the bent portion at the lower end is the lower end of the insertion hole. In a display device that engages with a hole edge to prevent removal, an engaging groove continuous with the truncated concave spherical surface is formed at the lower edge of the insertion hole, and the lower end of the display tool is provided in the engaging groove. It is characterized in that the bent part of is engaged.

[0005]

According to the display device of the present invention having the above structure, the lower end edge of the insertion hole formed in the cap body is
An engaging groove continuous with the truncated concave spherical surface is formed, and the bent portion at the lower end of the display tool is engaged with the engaging groove. Thereby, the bent portion and the spherical protrusion can be brought out of contact with each other. Further, even if the lower surface of the bent portion and the spherical projection come into contact with each other, since the bent portion is pushed into the engagement groove, the bent portion and the spherical projection are in point contact,
The bending joint at the lower end of the display tool and the spherical projection strongly rub against each other, and no abnormal noise is generated or the surface of the spherical projection is scratched. Can be tilted at any angle.

[0006]

An embodiment of the present invention will be described with reference to the accompanying drawings. 1 is a front view of the display device, FIG. 2 is an enlarged cross-sectional view showing a clip 1 provided with a spherical protrusion 7 and a cap body 12 separately, and FIG. 3 is an enlarged cross-sectional view taken along the line AA in FIG.
Is an enlarged cross-sectional view of the free joint 11, and FIG. 5 is a partially cutaway front view showing an example of a usage mode. The clip 1 is composed of a pair of movable pieces 2 and 2 having window holes 3 and 3 and a substantially U-shaped leaf spring 8. The movable pieces 2 and 2 are formed with protruding pieces 4 and 4 protruding in a mountain shape on both sides of the side portions of the window holes 3 and 3, respectively. Spring-hanging pieces 5, 5 are formed on the projecting pieces 4, 4. Then, a spherical projection 7 is integrally formed following the neck 6 formed on the upper end of one movable piece 2.

The substantially inverted U-shaped leaf spring 8 straddles the spring hooking pieces 5 and 5, and has lower end locking portions 9 and 9 formed on the spring hooking pieces 5 and 5, respectively. Hang on. As a result, the tip ends of the mountain-shaped protruding pieces 4 and 4 of the movable pieces 2 and 2 come into contact with each other to serve as a fulcrum, and the tip of the clip 1 can be elastically opened and closed. As shown in FIG. 5, this clip 1 fixes a mounting device a such as a shelf by sandwiching it with movable pieces 2 and 2, and projecting a spherical projection 7 in an arbitrary direction.

The free joint 11 is a movable piece 2 of the clip 1.
It is configured by elastically fitting a truncated concave spherical surface 13 formed on the inner circumference of the cap body 12 to the spherical projection 7 integrally formed with the.
The cap body 12 is provided with an insertion hole 15 that opens from the upper end of the integrally molded shaft portion 14 to the truncated concave spherical surface 13. Between the lower end of the insertion hole 15 and the truncated concave spherical surface 13,
A conical concave surface 16 is formed. As shown in FIG. 3, a cross-shaped engaging groove 17 continuous with the truncated concave spherical surface 13 is formed at the hole edge of the insertion hole 15 that opens to the conical concave surface 16. Further, the cap body 12 is formed with a cutout groove 18 cut from the lower surface. The neck portion 6 of the spherical projection 7 is inserted into the notch groove 18 when the cap body 12 is rotated to incline the shaft portion 14. The engaging groove 17 is not limited to the cross shape, and may be a single shape.

Before the cap body 12 is fitted into the spherical projection 7, the linear portion 22 of the wire-shaped display tool 21 is inserted into the insertion hole 15 before being fitted.
Through. Then, the lower end of the linear portion 22 is bent at a substantially right angle to provide the bent portion 23. The bent portion 23 engages with the cross-shaped engagement groove 17 to prevent the display tool 21 from coming off and from rotating. At this time, the entire bent portion 23 is inserted into the engaging groove 17 and does not contact the spherical protrusion 7, or the bent portion 23 that abuts the spherical protrusion 7 is pushed into the engaging groove 17 and the spherical shape The protrusion 7 and the lower surface of the bent portion 23 are in point contact with each other. Cap body 12 that locks the display tool 21
Is elastically fitted to the spherical protrusion 7. In addition, the display tool 21 includes a linear portion 24 that is bent at a right angle to the linear portion 22.
Is formed on the straight portions 22 and 24, and the milk 2 of the flag 25 is formed.
Hold the flag 25 through 6.

In the display device having the above-described structure, the free joint 11 rotates the cap body 12 through which the display tool 21 is inserted to incline the shaft portion 14, and the angle formed by the clip 1 and the flag 25 is set to an arbitrary angle. can do. At this time, the display device 21
The bent portion 23 is completely engaged in the engaging groove 17 and does not project into the conical concave surface 16 and the truncated concave spherical surface 13, or even if the lower surface of the bent portion 23 and the spherical projection 7 come into contact with each other. Since the bent portion 23 is pushed into the engaging groove 17, the bent portion 23
Therefore, the cap body 12 can be smoothly rotated without causing a strong friction between the spherical projection 7 and the spherical projection 7 to generate abnormal noise, chatter, or scratches on the surface of the spherical projection 7.

[Brief description of drawings]

FIG. 1 is a front view of a display device.

FIG. 2 is an enlarged sectional view showing a clip provided with a spherical projection and a cap body separately.

3 is an enlarged cross-sectional view taken along the line AA in FIG.

FIG. 4 is an enlarged cross-sectional view of a free joint.

FIG. 5 is a partially cutaway front view showing an example of a usage mode.

[Explanation of symbols]

1 → Clip 2 → Movable piece 3 → Window hole 4 → Projecting piece 5
→ Spring hook 6 → Neck 7 → Spherical protrusion 8 → Leaf spring 9 → Lock 1
0 → Lock jaw 11 → Free joint 12 → Cap body 13 → Concave concave curved surface 14 → Shaft part 15 → Insert hole 16 → Conical concave surface 17 → Entrance groove 18 →
Notch groove 21 → Display tool 22 → Straight line part 23 → Bent part 24 → Straight line part 25 → Dog flag 26 → Breast a → Mounting device

Claims (1)

[Claims] 1. A spherical projection fixed to a mounting device such as a shelf or a stand is elastically fitted to a truncated spherical surface formed on the inner circumference of a cap body to form a free joint, and the cap is also provided. In the insertion hole that opens on the truncated spherical surface formed on the body,
In a display device in which a bent portion at the lower end is inserted through a display tool to prevent the lower end hole edge of the insertion hole from slipping off, a lower end edge of the insertion hole is continuous with the truncated concave spherical surface. A display device, wherein an insertion groove is formed, and a bent portion at a lower end of the display tool is inserted into the insertion groove.