JPH04301878A - Holding device for picture display equipment - Google Patents

Abstract

PURPOSE:To present a holding device for picture display equipment having a rotation angle limiting mechanism. CONSTITUTION:A slit 2a is provided on the bottom of a sliding pan 2 placed on a saucer part 1, and the supporting plate 1 is provided with a boss 1a to be fitted to the slit 2a, and a spacer 3 which is slid in the slit 2a and is loosely engaged with the boss 1a is provided between the slit 2a and the boss 1a, and an approximately crescent or horseshoe-shaped recessed part 1b is provided on the upper end part of the boss 1a, and the spacer 3 is provided with a projection 3a facing the recessed part 1b. Thus, the inexpensive rotation angle control mechanism having high reliability is obtained by the cam mechanism.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a holding device for an image display device.

0002

2. Description of the Related Art FIGS. 4 to 6 are diagrams showing conventional image display device holding devices. In the figures, 1 is a saucer portion, 2 is a sliding tray portion that freely slides thereon, and the center A slit 2a for receiving the boss 1a from the saucer portion 1 is provided in the slit 2a. 3 is the boss 1a after attaching the sliding plate part 2 to the saucer part 1.
4 is a cap for fixing the sliding plate part 2 and the spacer 3 to the receiving plate part 1, and 5 is a bolt and nut for fixing the cap 4.

Next, the operation will be explained. When adjusting the vertical angle, insert the boss 1 of the saucer portion 1 into the slit 2a of the sliding tray portion 2.
a. A spacer 3 is inserted, the boss 1a slides by the length of the slit 2a, and the curved surface of the sliding plate 2 adjusts the vertical angle of the image display device. Regarding rotation, the sliding plate portion 2 rotates and slides around the boss 1a of the saucer portion 1 inserted into the slit 2a.

0004

[Problems to be Solved by the Invention] Since the conventional holding device for image display equipment is constructed as described above, there is a problem in that the stopper does not work against rotation and the device rotates freely through 360°. Ta.

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a holding device for an image display device in which a stopper operates at, for example, 90° in the left and right directions during rotation.

[0006]

[Means for Solving the Problems] A holding device for an image display device according to the present invention is provided with a substantially crescent-shaped or horseshoe-shaped concave stepped portion at the upper end of a boss at the center of rotation, and which engages with the boss; The spacer that slides on the slit of the sliding plate portion is provided with a protrusion that faces the recessed step portion.

[0007]

[Operation] The holding device for image display equipment in this invention has the following features:
When the sliding plate portion is rotated relative to the boss, the spacer also rotates, and at an angle where the projection of the spacer hits the end of the recessed step, the projection and the recessed step function as a stopper.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 to 3, reference numeral 1 denotes a saucer portion, 2 a sliding tray portion that freely slides thereon, and a slit 2a for receiving a boss 1a from the saucer portion 1 is provided in the center. 3
4 is a spacer which is inserted into the boss 1a after attaching the sliding plate part 2 to the receiving plate part 1 and rotates together with the sliding plate part 2; 4 is a spacer which sandwiches the sliding plate part 2 and the spacer 3, and 5 are bolts and nuts that fix the cap 4.

The boss 1a has a substantially truncated conical shape, and a recessed step 1b is provided at its upper end, which is substantially crescent-shaped or horseshoe-shaped when viewed from above. On the other hand, a spacer 3 that engages with the boss 1a and rotates integrally with the sliding plate portion 2 is provided with a projection 3a, and this projection 3a is arranged facing the recessed step portion 1b.

Next, the operation will be explained. When adjusting the vertical angle, insert the boss 1 of the saucer portion 1 into the slit 2a of the sliding tray portion 2.
a, the spacer 3 is inserted, the boss 1a slides by the length of the slit 2a, and the vertical angle is adjusted by the curved surface of the sliding plate 2. Regarding rotation, the spacer 3 has a protrusion 3a projecting from it with the width of the sliding plate part 2, and rotates in synchronization with the sliding plate part 2. Although the boss 1a of the saucer part 1 is fixed,
A cam-shaped crescent-shaped or horseshoe-shaped concave stepped portion 1b at the tip
is provided, and the projection 3a of the spacer 3 slides and rotates facing the recessed step 1b. Therefore, this rotation is limited by the projection 3a hitting the terminal end of the recessed step 1b. At that time, the vertical angle can be adjusted freely and independently. The rotation angle at this time can be freely restricted by changing the shape of the recessed step portion 1b.

[0011]

[Effects of the Invention] As described above, according to the present invention, since a cam mechanism is used for the boss of the saucer portion, a safe and reliable rotation limiting mechanism can be obtained without changing the number of parts of the device or increasing costs. effective.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a front sectional view showing an embodiment of the invention.

FIG. 3 is a plan view for explaining the operation of the present invention.

FIG. 4 is an exploded perspective view showing a conventional holding device for an image display device.

FIG. 5 is a plan view showing a conventional device.

FIG. 6 is a front sectional view showing a conventional device.

[Explanation of symbols]

1 Saucer part 1a Boss 1b Concave step 2 Sliding plate part 2a Slit 3 Spacer 3a　　　　Protrusion 4 Cap 5 Bolts and nuts

Claims (1)

[Claims] [Claim 1] The bottom surface of the sliding tray section on which the image display device is placed is made into a circular surface shape, and by placing it on the tray section, the vertical angle of the image display device can be adjusted and the rotation in the horizontal plane can be performed. A slit is provided in the bottom surface of the sliding plate part, while a substantially truncated conical boss is provided in the saucer part to fit into the slit, and a boss that slides into the slit is provided between the slit and the boss. , a spacer that fits loosely with the boss is provided, and a recessed step portion having an approximately crescent shape or a horseshoe shape is provided at the upper end of the boss, and a projection facing the recessed step portion is provided on the spacer. A holding device for an image display device, characterized in that it is provided with: