JPH0434620Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a rotation adjustment stand for a display device.

[Conventional technology]

FIG. 6 is a sectional view showing a conventional rotation adjustment table shown in, for example, Japanese Utility Model Application Publication No. 59-121972. A long hole 3 is provided in the plane including the top (bottom) of the mounting base 1, and a support rib 4 is provided along the long hole 3.
is formed. Reference numeral 5 denotes a pedestal having a spherical recess 6 that engages with the spherical bowl-shaped portion 2, and has a shaft boss 7 at the center of the bottom of the spherical recess 6 and a rib 8 protruding from its lower surface on one side thereof. Reference numeral 9 denotes a seat 10 that is in contact with the spherical bowl-shaped portion 2.
is a holding shaft that penetrates from the elongated hole 3 to the shaft boss 7, and the screw 1 is inserted into the holding shaft 9 through a washer 11.
2 is fastened to connect the mounting base 1 and the pedestal 5. As a result, the mounting base 1 can be rotated in the front-back direction within the range of an angle θ connecting the center point C of the radius R and the opening length of the elongated hole 3.

Figure 7 is a cross-sectional view of the state shown in Figure 6 rotated by 90 degrees.
A seat 10 of the holding shaft 9 is guided by the support rib 4. FIG. 8 is a perspective view of the holding shaft 9 and the washer 11. The bottom 10a of the seat 10 of the holding shaft 9 has a curved surface along the spherical bowl-shaped portion 2, and the tip of the holding shaft 9 has a square shaft 9a.
is formed. On the other hand, the washer 11 has a notch 11a formed in a part of its disk-shaped outer periphery and a square hole 11b in the center that fits into the square shaft 9a of the holding shaft 9. FIG. 9 is a diagram showing the relationship between the washer 11 and the rib 8. The washer 11 rotates together with the holding shaft 9, and can rotate within the range in which the notch 11a of the washer 11 contacts the rib 8.

[Problem that the invention attempts to solve]

Since the conventional rotation adjustment table is constructed as described above, it is possible to rotate the mounting table 1 within a predetermined range in the left-right direction using a specially processed washer 11, which reduces the number of parts. As the number of parts increased, there was a problem in that the assembly work required a lot of time.

This invention was made to solve the above-mentioned problems, and aims to provide a rotary adjustment table that has a small number of parts and can be assembled easily and in a short time.

[Means for solving problems]

The rotation adjustment table according to this invention has a guide rib in which a part of a circle bulges out in a tapered shape at the center of the inner surface of the spherical recess of the cradle, and a shaft boss protruding from the center of the guide rib, which abuts on the guide rib and the shaft boss, A retaining plate inscribed on the inner surface of the spherical bowl-shaped part of the mounting base is fastened to the shaft boss with screws.

[Effect]

In the rotation adjustment table of this invention, the range of rotation of the mount in the left-right direction can be regulated by the elongated hole of the mount coming into contact with a guide rib protruding from the pedestal.

〔Example〕

An embodiment of this invention will be described below with reference to the drawings. In FIGS. 1a and 1b, 20 indicates a display device, 21 is a mounting base fixed to the bottom 20a of the display device 20, 22 is a pedestal that frictionally and rotationally engages with this mounting base 21, and the mounting base 21 is It rotates within a range of set angles θ ₁ and θ ₂ in the front and back, left and right directions. Figure 2 is the first
Mounting base 21 and pedestal 2 in the - line cross section in Figure b
2, the mounting base 21 has a spherical bowl-shaped portion 23 with a radius R ₁ and a flange portion 24 on the outer periphery of the spherical bowl-shaped portion 23.
A mounting hole 25 is provided in the spherical bowl-shaped portion 23, and a long hole 26 is formed in a plane including the top (bottom) of the spherical bowl-shaped portion 23. On the other hand, the pedestal 22 consists of a spherical recess 27 that engages with the spherical bowl-shaped part 23 of the mounting base 21 and a seat 28. A guide rib 29 is provided at the center of the inner surface of the spherical recess 27, and a shaft boss 30 is located inside the spherical recess 27. Long hole 26 of shaped part 23
It protrudes into the mounting base 21 through. Reference numeral 31 denotes a retaining plate that is in contact with the guide rib 29 and the upper surface of the shaft boss 30 and inscribed in the inner surface of the spherical bowl-shaped portion 23;
1 is fastened by screwing a screw 32 into the shaft boss 30. As a result, the angle θ 1 obtained by subtracting the dimensions ₁ and ₂ of the guide ribs 29 from the length of the elongated hole ₂₆ with respect to the center point C ₁ of the radius R 1 of the spherical bowl-shaped portion 23 and its center line Y is the angle θ ₁ obtained by subtracting the dimensions 1 and 2 of the guide rib 29 from the length of the long hole 26. This is the range of rotation forward and backward.

FIG. 3 is a plan view of the guide rib 29 and the shaft boss 30, in which a circular portion 29a with a radius R ₂ from the center point C ₂ and a tangent portion 29b that touches the circumference at an angle of θ ₂ /2 from the center point C 2 are shown in FIG. The shaft boss 30 is located at _{the center point C2 ,} and the shaft boss 30 is located at the center point _C2 . FIG. 4 is a plan view of FIG. 2, and the width D of the elongated hole 26 is equal to the circular portion 29a of the guide rib 29 plus a small clearance.

In the rotation adjustment table of this invention constructed as described above, when the mounting table 21 is rotated in the left-right direction, the side edge 26a of the elongated hole 26 of the spherical bowl-shaped portion 23 changes to the tangential portion 29b of the guide rib 29 as shown in FIG. It comes in contact with and restricts further rotation. That is, mounting base 2
1 can be rotated to the left or right within a range of θ ₂ .

In the embodiment, the guide ribs 29 and the shaft boss 30 are integrally molded on the pedestal 22, but they may also be integrally molded on the retaining plate 31 side and attached to the shaft boss 30 with screws from the back surface of the pedestal 22. good.

[Effect of idea]

As described above, according to this invention, a guide rib and a shaft boss are provided on the pedestal so as to protrude through the long hole of the mount, and the range of rotation of the mount to the left and right is restricted by the contact between the guide rib and the long hole. As a result, the number of parts of the rotation adjustment table can be significantly reduced, and the assembly work can be easily performed in a short time, and it can be manufactured at low cost.

[Brief explanation of the drawing]

Figures 1a and b are a side view and a plan view of a display device equipped with the rotary adjustment table of this invention, Figure 2 is a sectional view of the rotation adjustment table, Figure 3 is a plan view of the guide rib, and Figure 4 is a side view and a plan view of a display device equipped with a rotation adjustment table of this invention. Fig. 2 is a plan view, Fig. 5 is a plan view showing the left and right rotational movement of the mounting base, Figs. 6 and 7 are sectional views of each of the conventional rotation adjustment tables, and Fig. 8 is a conventional holding shaft. and FIG. 9 is a perspective view of the washer, and FIG. 9 is a plan view showing the relationship between the washer and the ribs. 20...Display device, 21...Mounting stand, 22...
cradle, 23... spherical bowl-shaped part, 26... long hole, 27
... Spherical recess, 29 ... Guide hub, 29a ...
Circular part, 29b...Tangential part, 30... Axis boss, 3
1... Holding plate, 32... Screw. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A mounting base for a display device that has a spherical bowl-shaped portion and has a long hole in its plane including its top (bottom), and engagement with the spherical bowl-shaped portion of the mounting base. It consists of a pedestal having a spherical concave part, and a roughly egg-shaped guide rib in which the tangential part of the circular part bulges out in a tapered shape at the center of the inner surface of the spherical concave part of the pedestal, and a shaft boss in the center of the spherical bowl-shaped part. A holding plate is provided that protrudes through the elongated hole, contacts the guide rib and the shaft boss, and is inscribed in the inner surface of the spherical bowl-shaped portion, and is fastened to the shaft boss with a screw to connect the mounting base and the cradle. A rotation adjustment stand for a display device, characterized in that: (2) The rotation adjustment stand for a display device according to claim 1, wherein the guide rib and the shaft boss are provided on the holding plate.