JPH0410613Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention can be applied to monitors (CRT display devices) for office computers, word processors, etc. that are placed on desks, etc., and the tilt angle of the monitor can be adjusted. This invention relates to a support device with an adjustable tilt angle adjustment mechanism.

[Structure of the idea]

This invention is a support device equipped with an inclination angle adjustment mechanism that can adjust the inclination angle of a main body placed on a support stand. a stopper plate having a stopper plate formed thereon, and a lock lever having a rotation fulcrum near an extension line of a tooth row of the stopper plate provided on a support base, and having a protrusion and an operating portion that engage with the tooth row. The lock lever is pivoted to rotate in a plane substantially perpendicular to the plane in which the stopper plate rotates, and the stopper plate is biased so that the protrusion engages with the tooth row. , the main body can be reliably fixed at a predetermined angle of inclination.

[Conventional technology]

Generally, monitors for office computers, etc.
The display screen is mounted on a support device equipped with a tilt angle adjustment mechanism that allows the operator to adjust the display surface to a tilt angle that is easy for the operator to view.

Figure 4 shows such a conventional support device (1980-
95767), numeral 31 designates a support base, and a recess 32 having a semi-cylindrical cross section at the center is formed. A hole 33 from which an engaging portion of a lock lever, which will be described later, protrudes is provided in the bottom portion of the recess 32, and a hole 34 from which a pressing portion of the lock lever protrudes is provided in the other portion.

Reference numeral 35 designates a lock lever provided on the support base 31, which rotates around a fulcrum P, and is provided with an engaging portion 36 protruding from the hole 33 and a pressing portion 37 protruding from the hole 34. At 38, the engaging part 3
6 is urged to protrude from the hole 33.

Reference numeral 39 denotes a mounting table on which the main body, ie, a CRT display device (not shown), etc., is placed or fixed, and a semi-cylindrical protrusion 40 that fits into the recess 32 is provided at the bottom. The surface of the protrusion 40 is provided with a plurality of grooves 41 that engage with the engaging portion 36 on the mounting table 3.
9 in the direction of rotation (arrow).

Note that the mounting table 39 is provided with a guide mechanism (not shown) so that it can rotate in the direction of the arrow with respect to the support table 31, and the support table 31 and the mounting table 39 are coupled so as not to be separated.

The support device with an inclination angle adjustment mechanism configured as described above has a lock lever 35 provided on the support base 31.
When the pressing portion 37 is pressed, the lock lever 35 rotates counterclockwise about the fulcrum P against the biasing force of the spring 38, and the engagement between the engaging portion 36 and the groove 41 is released. Then, in this state, when the mounting table 39 on which the CRT display device is mounted is rotated clockwise or counterclockwise to an arbitrary tilt angle and the pressing force of the pressing part 37 is released, the lock lever 35 is moved by the spring 38. Since it is rotated counterclockwise by force and engaged with the groove 41, the inclination angle of the CRT display device can be set to any desired angle.

[Problem that the invention attempts to solve]

However, in the conventional support device, when changing the inclination angle of the mounting table 39, the lock lever 35 can be moved with one hand.
Since the mounting table 39 must be rotated with the other hand while pressing the pressing portion 37 to set it to a predetermined inclination angle, the operability is poor.

In addition, since the rotation axes of the lock lever 35 and the mounting table 39 are in the same direction, the engaging portion 36 is aligned with the groove 4.
If you touch the CRT display device placed on the mounting table 39 while it is engaged with the display device 1, the mounting table 39
The force that rotates the engaging portion 36 in the counterclockwise direction causes the engaging portion 36 to move into the groove 4.
1, and the engaging portion 36 comes off from the groove 41. Therefore, there are problems such as the inability to stably fix the mounting table 39, that is, the CRT display device at a predetermined angle of inclination.

This idea solves the problems mentioned above,
To provide a support device with an inclination angle adjustment mechanism that allows a main body to be reliably fixed at an arbitrary inclination angle.

[Means for solving problems]

The support device with an inclination angle adjustment mechanism of this invention has an inclination angle adjustment mechanism provided, for example, on the bottom surface of the main body,
a stopper plate having a tooth row formed in the direction in which the main body rotates; and a support plate having a rotation fulcrum near an extension line of the tooth row of the stopper plate;
comprising a protrusion and an operating part that engages with the tooth row, and
It consists of a lock lever that rotates in a plane perpendicular to the plane in which the stopper plate rotates, and a spring that biases the lock lever to the locked position.

[Effect]

In the support device with an inclination angle adjustment mechanism of this invention, the rotation fulcrum of the lock lever is provided near the extension line of the tooth row of the stopper plate, and the rotation direction of the stopper plate and the rotation direction of the lock lever are orthogonal. Therefore, even when a rotational force is applied to the main body, the tooth row of the stopper plate and the protrusion of the lock lever can be engaged in a state where they are difficult to come off.

〔Example〕

FIG. 1 is an exploded perspective view showing an embodiment of the support device with an inclination angle adjustment mechanism of the present invention, and FIG. 2 is a perspective view showing members constituting the inclination angle adjustment mechanism.

In these figures, reference numeral 1 indicates a support base whose upper surface has an arcuate surface, and reference numeral 4 indicates a support base in which a roller to be described later is housed.
There are provided two first recesses 2, two bosses 3, and a second recess 4 in which a lock lever, which will be described later, is accommodated. Then, on the bottom surface of the second recess 4,
A support shaft 5, a rotation restriction portion 6, and a locking portion 7 are provided.

8 indicates a roller rotatably supported by a shaft 10 and housed in the first recess 2;
A flange 9 is provided that protrudes from the upper surface of.

Reference numeral 11 indicates a lock lever, which includes a hole 12 into which the support shaft 5 is inserted, a protrusion 13 that engages with a stopper plate to be described later, and an operating portion 14 that protrudes from the side surface of the support base 1 to allow the lock lever 11 to rotate. A hole 15 for regulating rotation is provided.

Reference numeral 16 indicates a toggle spring stretched between the locking portion 7 and the lock lever 11, and the direction in which the lock lever 11 is biased changes depending on the rotational position of the lock lever 11.

17 is a main body placed on the support stand 1, for example
This shows a CRT display device and is composed of a mounting table 18 whose lower surface has an arcuate surface and a display section 24. The lower surface of the mounting table 18 has an opening 19, first grooves 20, 20 into which the boss 3 is inserted, and a second groove 21 into which the flange 9 of the roller 8 is inserted.
21 is provided.

Reference numeral 22 denotes a stopper plate mounted to be positioned in the opening 19 of the mounting table 18, and has teeth 23 with which the protrusion 13 of the lock lever 11 engages.

Reference numeral 25 denotes a stopper that connects the support base 1 and the main body 17 without separating them, and is attached to the boss 3 inserted into the first groove 20 with a screw 26.

The main parts of the support device configured as described above are assembled as shown in the plan view of FIG. 3a and the side view of FIG. 3. A tooth row of the stopper plate 22 is formed along the direction of the main body 17 which rotates while being guided by the flange 9 of the roller 8. A support shaft 5 on which the lock lever 11 rotates is provided on an extension line of this tooth row, and a straight line L connecting the support shaft 5 and the locking portion 7 is provided.
Lock lever 11, toggle spring 1 on the right side of
6 joints are located. Therefore, the lock lever 11 is urged to rotate counterclockwise (FIG. 3a) by the toggle spring 16,
The projections 13 mesh with the teeth 23 to lock the body 17 at a predetermined angle of inclination. Even if a force to rotate the main body 17 is applied in this state, the rotation direction of the main body 17, that is, the stopper plate 22 and the lock lever 1
The rotation direction of the lock lever 11 is perpendicular to the rotation direction of the stopper plate 22, the rotation fulcrum of the lock lever 11 is on the extension line of the tooth row of the lock lever 22, and the rotation plane of the lock lever 11 is perpendicular to the rotation plane of the stopper plate 22. Protrusion 1
3 from the teeth 23 no longer acts, and since the toggle spring 16 urges the lock lever 11 to the lock position, the protrusion 13 does not come off from the teeth 23, and the main body 17 can be locked in a stable state.

When the lock lever 11 is rotated clockwise by operating the operating part 14 in the state shown in FIG. The direction of lock lever 1 is reversed.
1 is biased clockwise to the unlocked position, and the 3rd
The state is shown by the dashed line in Figure a. Therefore,
Even if you release your hand from the operating part 14, the lock lever 11 does not rotate and remains in the state shown by the dashed line in FIG. The angle can be adjusted to a predetermined angle using both hands, and the inclination angle of the heavy main body 17 can be easily adjusted. After adjusting the inclination angle of the main body 17, when the operating part 14 is rotated clockwise, the lock lever 11 is biased counterclockwise by the toggle spring 16 as described above, and the protrusion 13 is Teeth 23 of stopper plate 22
The main body 17 can be stably locked at a predetermined angle of inclination.

In the above-mentioned embodiment, the lock lever 11 is provided on the support base 1.
Although the toggle spring 16 is provided and the stopper plate 22 is provided on the main body 17, the support stand 1
A stopper plate 22 may be provided on the main body 17, and a lock lever 11 and a toggle spring 16 may be provided on the main body 17.

Further, although the toggle spring 16 is used to bias the lock lever 11 to the lock position and the unlock position, it may be configured to use a normal spring to bias the lock lever 11 to the lock position.

Further, the rotational fulcrum of the lock lever 11 is located on the extension line of the tooth row of the stopper plate 22, but considering the force of the spring that brings the lock lever 11 to the locked position, the rotational fulcrum of the lock lever 11 is located on the stopper plate 22. It may be located near the extension line of the 22 tooth rows.

The shape of the tooth 23 is preferably such that it has a guide portion 23A and a parallel meshing portion 23B, as shown in an enlarged view of a portion of the tooth 23 in FIG.

[Effect of idea]

As explained above, the support device with an inclination angle adjustment mechanism of this invention has a stopper plate provided on one side of the support stand or the main body and having a tooth row formed in the direction in which the main body rotates, and a stopper plate provided on one side of the support stand or the main body. It has a rotation fulcrum near the extension line formed by the tooth row of the stopper plate provided on the other side, has a protrusion and an operating portion that engage with the tooth row, and is substantially perpendicular to the plane in which the stopper plate rotates. It consists of a lock lever that rotates on a flat surface and a spring that biases the lock lever so that the protrusion engages with the tooth row, so even if a force to rotate the main body is applied, the lock lever protrusion will not be removed from the tooth row. Since this force no longer acts and the spring urges the lock lever to the lock position, the protrusion will not come off the tooth.

Therefore, there is an advantage that the main body can be stably locked at a predetermined inclination angle with respect to the support base.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing an embodiment of the support device with an inclination angle adjustment mechanism of this invention, Fig. 2 is a perspective view showing members constituting the inclination angle adjustment mechanism, Fig. 3a,
4b is a plan view and a side view showing the main parts of the support device, and FIG. 4 is a sectional view showing the conventional support device. In the figure, 1 is a support stand, 5 is a support shaft, 7 is a locking part, 1
1 is the lock lever, 12 is the hole, 13 is the protrusion, 14
17 is an operating section, 17 is a main body, 18 is a mounting table, 22 is a stopper plate, 23 is a tooth, and 24 is a display section.

Claims (1)

[Scope of utility model registration request] In the support device, the support device includes a guide mechanism that guides a main body placed on a support base in a direction of rotation, and an inclination angle adjustment mechanism that can adjust the inclination angle of the main body, wherein the inclination angle adjustment mechanism is configured to rotate the support base or A stopper plate provided on one side of the main body and having a tooth row formed in the direction in which the main body rotates, and a stopper plate provided on the other side of the support base or the main body that rotates near an extension line formed by the tooth row. The lock lever has a fulcrum and is provided with a protrusion that engages with the tooth row and an operating portion, and the lock lever is pivoted so as to rotate in a plane substantially perpendicular to the plane in which the stopper plate rotates. A support device with an inclination angle adjustment mechanism, wherein the protrusion is biased to engage with the tooth row.