JPS6246373Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a CRT display device, and more specifically, to a CRT display device equipped with an angle adjustment means that can adjust the angle of the CRT screen according to the operator's body shape, posture, etc. It is something.

With the spread of microelectronics, especially small computers, the CRT terminal
The number of operators operating display devices is rapidly increasing, but in recent years, CRT display devices for operators have been increasing in order to make them easier to use, reduce operator fatigue, and increase the efficiency of their use. There is a growing momentum to study the relationship between humans and humans from the perspective of ergonomics.

Therefore, the purpose of this invention is to provide a CRT with a simple structure and angle adjustment means that can smoothly adjust the elevation angle of the CRT screen to the operator in a stepless manner.
The purpose of this invention is to provide a display device.

Hereinafter, this invention will be described in detail with reference to embodiments shown in the accompanying drawings.

As shown in FIGS. 1, 2, and 8, this CRT display device includes a base 1 called, for example, a main body top cover, and a
The housing 2 has a built-in CRT 2a installed thereon, and an angle adjustment means is provided between the housing 2 and the housing 2 so that the angle of the housing 2 can be adjusted steplessly. In this embodiment, the angle adjusting means includes a rotary table 3 provided on the base 1, on which the housing 2 is supported, and whose elevation angle and horizontal rotation angle are set to a predetermined angle. It can be adjusted steplessly within the angle range. That is, as illustrated in FIGS. 3 and 4, the rotary table 3 is composed of a disk body formed in a substantially perfect circle shape, and the lower edge of the skirt portion thereof has a notch with an inverted L-shaped cross section. A rounded groove 4 is formed all around the circumference. Also, on the top of this turntable 3,
A pair of left and right arms 5, 5 are erected to support the housing 2, and a pair of arms 5, 5 are inserted between the arms 5, 5 into bearing holes 6, 6 bored at their upper ends. A trough-like curved recess 8 is provided with a predetermined curvature around the support shaft 7 . Further, at the lower part of the rotary table 3, upright stems 9, 9 are provided to protrude symmetrically with respect to the axis of rotation in order to obtain a stable rotational state without wobbling. Note that reference numeral 10 is a screw receiving hole drilled at the bottom of the curved recess 8, and 11 is a rotary base 3 through which a lead wire (not shown) drawn from the base 1 side into the housing 2 is inserted. This is a guide tube installed in the.

On the other hand, a seat 13 is formed on the base 1 to rotatably support the rotary table 3. As illustrated in FIG. 5, this seat 13 includes an annular guide rib 14 formed to fit into a groove 4 in the skirt portion of the rotary table 3, and a radius from the base of the guide rib 14. Including a pair of left and right flanges 15, 15 that are horizontally connected inward in the direction,
In this case, each of the flanges 15, 15 is provided with a guide slit 17, 17 formed along the rotation locus and having a groove width that fits into the neck 16 formed at the lower end of the stem 9. ing. Therefore, the turntable 3 has its stem 9,
By fitting the necks 16, 16 at the lower ends of the catch plate 9 into the guide slits 17, 17, and attaching the screws 19 to the necks 16, 16 from below the flanges 15, 15 with the washer 18,
3, it is held so as to be rotatable left and right around a virtual vertical rotation axis. Note that the rotary table 3 is held at an arbitrary stationary position by the frictional resistance generated between the groove 4 and the guide rib 14 and the frictional resistance generated between the stem 9 and the flange 15.

On the other hand, referring to FIGS. 6 and 7 together, the bottom plate 21 side of the housing 2 is fitted into the curved recess 8 of the rotary table 3. That is, a trough-like curved wall 22 formed with a predetermined curvature and concentric therewith is provided. In this embodiment, a pair of left and right bearing members 23, 23 protruding above the bottom plate 21 is provided on both sides of the curved wall 22, and near the bearing members 23, 23,
Openings 24, 24 are provided for inserting the arms 5, 5 of the rotary table 3 into the housing 2, respectively. In this case, each bearing member 23 has a first bearing member 27 having a substantially U-shaped recess 26 at its upper end, and a substantially inverted U-shaped recess 28 at its upper end. Consisting of a combination with an upper bearing member 29 installed laterally,
The U-shaped recess 26 and the inverted U-shaped recess 28 form a bearing hole 25 coaxially aligned with the bearing hole 6 of the arm 5. This is because the mold for forming the bottom plate 21 of the housing 2 is intended to have a vertically or horizontally raised mold structure. The housing 2 configured as described above has the arms 5, 5 inserted through the openings 24, 24 bored in the bottom plate 21, and the bearing member 2 inserted into the bearing hole 26.
By fitting the support shaft 7 with the bearing hole 25 of
It is held rotatably in the vertical direction around the center.
In this case, the curved wall 22 is held in a non-contact state with respect to the curved recess 8 of the rotary table 3. In this embodiment, the support shaft 7 has the above-mentioned bearing holes 6 at both ends thereof.
It has rotary holders 30, 30 that fit tightly into the curved walls 22 and 25, and a rotary table 3 is provided at the bottom of the curved wall 22.
Slits 31, 31 are provided along the rotating direction of the housing 2 at positions overlapping with the screw receiving holes 10, 10. Incidentally, reference numeral 32 denotes a bottom plate 2 formed so as to loosely fit into the guide tube 11 protruding from the rotary table 3.
This is the first hole.

Furthermore, a brake body 34 is provided within the curved wall 22 of the bottom plate 21 described above to hold the housing 2 at an arbitrary elevation angle. This braking body 34 is
For example, it is made of a synthetic resin block such as Delrin (trade name), and its bottom surface is formed in the shape of a ship's bottom with approximately the same curvature as the curved wall 22. In this case, the brake body 34 passes through the slits 31, 31 of the curved wall 22 from the housing 2 side to the screw receiving hole 1 of the rotary table 3.
Back bolts 35, 35 screwed into 0,10
The washer 3 of the bolt 35
6 is pressed toward the curved wall 22 by a spring 37 disposed between the curved wall 22 and the curved wall 22. Therefore, the housing 2 is stopped at any elevation angle position by the frictional resistance generated between the bottom surface of the brake body 34 and the inner surface of the curved wall 22. In order to adjust the holding force due to this frictional resistance, the spring 37 may be replaced or the mounting height of the washer 36 may be changed.

In the above embodiment, the rotary table 3 is installed on the base 1, and the housing 2 is held by the rotary table 3 so as to be able to move up and down. However, in this invention, the rotary table 3 is not necessarily required. Instead, a portion corresponding to the rotary table 3 may be integrally formed on the base 1.

As is clear from the above description, this invention provides a CRT display device having a simple angle adjustment means that allows stepless adjustment of the elevation angle of the housing 2 containing the CRT. This is extremely convenient for the operator.
Moreover, since most of the constituent members of this angle adjustment means are provided within the housing 2,
The height of the entire device can be kept as low as possible, which is suitable for downsizing the device, and is also preferable in terms of design.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view showing an example of the angle adjustment means applied to this CRT display device, and Fig. 2 is a longitudinal sectional view showing an example of the angle adjustment means applied to this CRT display device.
3 is a longitudinal sectional view of the turntable in FIG. 1, 4 is a plan view thereof, 5 is a plan view of the base in FIG. 1, and 6
7 is a plan view showing the bottom plate of the housing, FIG. 7 is a perspective view of a bearing member provided on the bottom plate side of the housing, and FIG. 8 is a perspective view showing an embodiment of the CRT display device according to this invention. In the figure, 1 is a base, 2 is a housing, 3 is a rotary table, 4 is a groove, 5 is an arm, 6 is a bearing hole, 7 is a support shaft, 8 is a curved recess, 9 is a stem, 10 is a screw hole, 13 is a seat, 14 is a guide rib, 15 is a flange, 16 is a neck, 17 is a guide slit, 21
2 is a bottom plate, 22 is a curved wall, 23 is a bearing member, 24 is an opening, 25 is a bearing hole, 26 is a U-shaped recess, 28 is an inverted U-shaped recess, 31 is a slit, 34 is a brake body, 35 is a bolt , 36 is a washer, and 37 is a spring.

Claims (1)

[Claims for Utility Model Registration] (1) A CRT display device comprising a housing including a CRT and a base supporting the housing, and capable of steplessly adjusting the elevation angle of the housing with respect to the base. a support member provided on the base side that has a horizontal rotation axis and supports the housing rotatably in the vertical direction about the horizontal rotation axis; a trough-like curved wall formed on the bottom plate side of the housing with a curvature and having a slit bored along the rotating direction of the housing; one end fixed to the base side and the other end a holding shaft protruding into the housing through the slit; a braking body held by the holding shaft so as to be in frictional contact with the curved wall; and a braking body directed toward the curved wall. It is characterized by comprising an elevation angle adjustment means consisting of an elastic means for pressing.
CRT display device. (2) In the utility model registration claim (1), the support member includes a pair of left and right arms each having a bearing hole through which the horizontal rotation shaft is inserted, and the arms are disposed on the bottom plate side of the housing. A bearing member having an opening for insertion into the housing and a bearing hole that matches the bearing hole of the arm is provided, and by aligning the bearing holes in the housing and inserting the horizontal rotation shaft. . A CRT display device, wherein the housing is held on the base so as to be tiltable and vertical. (3) In claim (1) of the utility model registration, the bearing member includes a first bearing member having a substantially U-shaped recess at the upper end, and a substantially inverted U-shaped recess above the first bearing member. a second bearing member attached to the first bearing member, and the U
The bearing hole of the bearing member is formed by the character-shaped recess and the inverted U-shape recess.
CRT display device. (4) Claim (1) of the utility model registration is characterized in that the bottom surface of the braking body is formed in the shape of a ship's bottom having approximately the same curvature as the curved wall.
CRT display device. (5) In claim (1) of the utility model registration, the holding shaft is composed of a bolt having a washer on the shaft head, and the elastic means is composed of a spring disposed between the washer and the braking body. A CRT display device characterized by: