JP2000286563A - Structure for mounting leg of enclosure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide structure for mounting the leg of an enclosure that can finely and coarsely adjust the height or the inclination of the enclosure. SOLUTION: A leg-mounting part is composed of a first through-hole 11 at a bottom plate 1a, a first support plate 12 where a second through-hole 12a corresponding to the first through-hole and a engage pawl 12b are formed on an entire surface, a second support plate 13 for fixing a first coil spring 3 that energizes the leg downward, and a second coil spring 4 that is arranged at the second through-hole 12a and is wound around the leg for fixing, gear- locks its one end to the engage pawl 12b and allows the other end to face the other surface of the first support plate 12 and at the same time allows it tip to project from a gear-lock hole provided outward at the sidewall 1b of the enclosure 1. At the same time, the leg is composed of a cylindrical body 21 that is inserted through the first through-hole 11 and the second through-hole 12a, a grounding part 22 that is provided at the lower end of the cylindrical body 21, and s topper 23 that is provided at the upper end of the cylindrical body 21 is energized by the first coil spring 3, and at the same time, prevents the leg from being pulled out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leg mounting structure for a housing, and more particularly to a housing in which the height and inclination of the housing can be easily adjusted.

[0002]

2. Description of the Related Art A structure for mounting a leg 2, such as a liquid crystal projector, which is mounted on a lower portion of a casing 1 as shown in FIG. As described above, while the female screw 18 is formed in the mounting portion of the housing 1,
There is one in which a male screw 28 is provided on the periphery of the leg 2 and the height is adjusted by rotating the leg. However, in this configuration, when the height needs to be changed greatly like a liquid crystal projector, the leg 2 must be rotated many times, which is not suitable. In view of this, as shown in FIG. 5B, a protrusion 29 is formed on the side surface of the leg 2 at a predetermined pitch, and a slide plate 9 which is urged by the spring 8 and locked is provided on the protrusion 29. Has been put to practical use. In the case of this conventional example, since the leg 2 can be moved up and down by sliding the knob 91 of the slide plate 9 against the spring 8, it is effective when the height is to be largely changed. However, in this configuration, when used in a liquid crystal projector, the height can be changed significantly, but there is a problem that the height cannot be adjusted more finely than the pitch of the projections.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a housing leg mounting structure capable of easily adjusting the height and inclination of the housing.

[0004]

In order to solve the above-mentioned problems, the present invention has a structure in which a leg for adjusting the height and inclination is attached to a leg attaching portion provided on a bottom plate of a housing. A first through hole provided in the bottom plate and through which the leg is inserted;
A first support plate provided opposite to the bottom plate above the first through hole and having a second through hole corresponding to the first through hole and a locking claw formed on one surface thereof; A second support plate provided above the support plate and fixing a first urging means for urging the leg downward; a second support plate disposed in the second through-hole and fixedly wound around the leg; The other end faces the other surface of the first support plate while the other end faces the other surface of the first support plate. The second biasing means, the leg is provided in the first through-hole and the second through-hole, and a cylindrical body is provided at a lower end of the cylindrical body. And a stopper provided at the upper end of the columnar body, which is urged by the first urging means and abuts on the upper surface of the first support plate to prevent the legs from coming off. And a leg mounting structure of the housing.

[0005] A leg mounting structure for a housing is formed around the cylindrical body and a projection corresponding to the pitch of the urging means is formed.

[0006] A leg mounting structure for a housing is provided in which a spiral groove corresponding to the pitch of the urging means is formed around the cylindrical body.

The first and second support plates are fixed to a side wall of the case and a support standing upright from a bottom plate, so that the case has a leg mounting structure.

[0008] A leg mounting structure for a housing is provided in which the tip of the second biasing means is fixed to a button disposed in a locking hole provided in the side wall.

When the button is depressed, the second urging means has a leg attachment structure of a length that is separated from the columnar body of the leg.

[0010] A leg attachment structure for a housing is provided in which irregularities are provided on the periphery of the grounding portion so that it can be easily rotated with fingers.

[0011] A leg attachment structure for a housing is provided in which the center of the lower end of the grounding portion is protruded downward so that the leg is easily rotated.

The grounding portion is divided into upper and lower portions, and the lower portion is rotatably mounted on the upper portion, so that the lower portion does not friction with the desk even when the upper portion is rotated.

[0013]

As described above, in the leg mounting structure for a housing according to the present invention, the leg mounting portion is provided on the bottom plate, and the first through hole through which the leg is inserted, and the first through hole. A first support plate provided above and facing the bottom plate and having a second through-hole corresponding to the first through-hole and a locking claw formed on one surface thereof; and a first support plate provided above the first support plate. A second support plate for fixing a first urging means for urging the leg downward; a second support plate disposed in the second through-hole and fixedly wound around the leg, one end of which is connected to the first support plate; A second urging member, the other end of which faces the other surface of the first support plate, and the tip of which protrudes outside through a locking hole provided in a side wall of the housing. Means, the leg is inserted into the first through hole and the second through hole, and a ground is provided at a lower end of the cylindrical body and is grounded in opposition to the bottom plate. And a stopper which is provided at the upper end of the columnar body and is urged by the first urging means and abuts on the upper surface of the first support plate to prevent the legs from coming off. The urging means is wound around and fixed to the columnar body of the leg, and the tip of the second urging means protruding from the side wall of the housing is pushed into the locking hole so that the leg can move up and down. Coarse adjustment is possible. In addition, the legs can be finely adjusted up and down in the winding direction of the second urging means by rotating the ground contact portion.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a housing leg mounting structure according to the present invention. FIG. 1 is a schematic external view showing an embodiment of a leg attachment structure of a housing according to the present invention, FIG. 2 is a sectional view of the same main part, FIGS. 3 (A), 3 (B) and 4 show the same. It is a part enlarged view. In the figure, reference numeral 1 denotes a housing of a liquid crystal projector or the like, 2 denotes a leg mounted on the bottom plate of the housing 1 so as to be vertically adjustable, and 50 denotes a screen projected from the liquid crystal projector and projected. A first through hole 11 through which the leg 2 is inserted is formed in the bottom plate 1 a of the housing 1. Reference numeral 12 denotes a first support plate provided above the through hole 11 so as to face the bottom plate 1a, and a second through hole 12 corresponding to the first through hole 11 is provided.
a is formed. A second coil spring 4 is mounted in the second through hole 12a, and a locking claw 12b for locking one end of the second coil spring 4 is formed on the upper surface of the first support plate 12. The other end of the second coil spring 4 faces the lower surface. This second coil spring 4
A button 5 is attached to the other end of the housing 1, and the button 5 is attached to a locking hole 1b1 formed in the side wall 1b of the housing 1 so as to be able to come and go. A second support plate 13 is provided with a first coil spring 3 for urging the leg 2 downward. The first support plate 12 and the second support plate 1
Numeral 3 is fixed to a column 1c standing upright from the side wall 1b and the bottom plate 1a of the casing 1.

As shown in FIG. 2, the leg 2 has a cylindrical body 21 inserted into the first through hole 11 and the second through hole 12a, and a bottom plate provided at a lower end of the cylindrical body 21. 1a
And a grounding portion 22 that is grounded in opposition to the upper surface of the cylindrical body 21 and is urged by the first coil spring 3 and abuts on the upper surface of the first support plate 12 to prevent the leg 2 from coming off. And a stopper 23 for prevention. This cylindrical body 21
Is, as shown in FIG.
The projections 21a are formed in a spiral shape corresponding to the pitch of the coil springs 4, and the legs 2 are fixed by the second coil springs 4 being sandwiched between the projections 21a. Also, this columnar body 21 is shown in FIG.
As shown in FIG. 5, a spiral groove 21a corresponding to the pitch of the second coil spring 4 may be formed around the periphery of the spiral groove 21a.
The leg 2 is fixed by winding the second coil spring 4 around the groove 21a. The button 5 attached to the locking hole 1b1 has such a length that the second coil spring 4 separates from the cylindrical body 21 of the leg 2 when the button 5 is pressed.

As shown in FIG. 4, irregularities 22a are provided on the periphery of the grounding portion 22, so that the grounding portion 22 can be easily rotated with fingers. Further, the lower end center portion 22b of the grounding portion 22 is projected downward to reduce friction with the desk when the grounding portion 22 is rotated. Further, as shown in FIG. 4B, the grounding portion 22 is divided into an upper portion 22c and a lower portion 22d.
The lower part 22d is rotatable with respect to the upper part 22c so that the lower part 22d does not cause friction with the desk when the upper part 22c is rotated.

The operation of the above configuration will now be described. First, when roughly adjusting the height, the user pushes the button 5 protruding from the side surface 1b while lifting the casing 1, sets the casing 1 to a desired height, and releases the button 5. As a result, the height of the leg 2 is roughly adjusted. Next, as shown in FIG. 1, an image is projected on the screen 50, and the ground contact portion 2 (upper part 22c) is rotated so that the projected image is not tilted. As a result, the height of the leg 2 is finely adjusted.

[0018]

As described above, according to the leg mounting structure of the housing according to the present invention, the leg mounting portion is provided on the bottom plate, the first through hole for inserting the leg, and the first through hole. A first support plate provided above and facing the bottom plate and having a second through-hole corresponding to the first through-hole and a locking claw formed on one surface thereof; and a first support plate provided above the first support plate. A second support plate for fixing a first coil spring for urging the leg downward, and a second support plate disposed in the second through-hole and fixedly wound around the leg, one end of which is connected to the first support plate; A second coil spring which is engaged with a stop claw, the other end of which faces the other surface of the first support plate, and the end of which protrudes outside through an engagement hole provided in a side wall of the housing. On the other hand, the leg is grounded opposite to the bottom plate provided at a lower end of the cylindrical body inserted into the first through hole and the second through hole, and provided at a lower end of the cylindrical body. The grounding portion and the stopper provided at the upper end of the columnar body and urged by the first coil spring and abutting against the upper surface of the first support plate to prevent the legs from coming off, so that the second The coil spring is wound around the columnar body of the leg and fixed, and the tip of the second coil spring protruding from the side wall of the housing is pushed into the locking hole so that the leg can be moved up and down, and the height can be roughly adjusted. Becomes In addition, the legs can be finely adjusted up and down in the winding direction of the second coil spring by rotating the grounding portion.

[Brief description of the drawings]

FIG. 1 is a schematic external view showing one embodiment of a housing leg mounting structure according to the present invention.

FIG. 2 is a sectional view of a main part showing an embodiment of a leg attachment structure for a housing according to the present invention.

FIG. 3 is a sectional view of a main part showing another embodiment of the leg mounting structure of the housing according to the present invention.

FIG. 4 is a cross-sectional view of a main part showing another embodiment of the leg attachment structure of the housing according to the present invention.

FIG. 5 is a cross-sectional view of a main part showing a conventional leg attachment structure for a housing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 1a Bottom plate 1b Side wall 1b1 Locking hole 1c Column 11 First through hole 12 First support plate 12a Second through hole 12b Locking claw 13 Second support plate 2 Leg 21 Cylindrical body 21a Projection 21b Spiral Groove 22 grounding portion 22a irregularities 22b lower end center portion 22c upper portion of grounding portion 22d lower portion of grounding portion 23 stopper 3 first coil spring 4 second coil spring 5 button

Claims (9)

[Claims] 1. A structure in which a leg for adjusting the height and inclination is attached to a leg attachment portion provided on a bottom plate of a housing, wherein the leg attachment portion is provided on the bottom plate and a first through hole is inserted through the leg. A first support plate provided opposite to the bottom plate above the first through hole and having a second through hole corresponding to the first through hole and a locking claw formed on one surface; A second support plate provided above the first support plate and fixing a first urging means for urging the leg downward; a second support plate disposed in the second through-hole and fixedly wound around the leg;
One end thereof is engaged with the engaging claw of the first support plate, and the other end faces the other surface of the first support plate. The leg is opposed to the bottom plate provided at a lower end of the cylindrical body inserted into the first through-hole and the second through-hole. And a stopper provided at the upper end of the cylindrical body and urged by the first urging means and abutting against the upper surface of the first support plate to prevent the legs from coming off. A leg attachment structure for a housing, characterized in that: 2. The leg mounting structure according to claim 1, wherein a projection corresponding to a pitch of said urging means is formed around said cylindrical body. 3. The leg mounting structure according to claim 1, wherein a spiral groove corresponding to a pitch of said urging means is formed around said cylindrical body. 4. The housing according to claim 1, wherein the first support plate and the second support plate are fixed to a side wall of the housing and a support standing upright from a bottom plate. Leg mounting structure. 5. The leg attachment structure for a housing according to claim 1, wherein a tip of said second urging means is fixed to a button arranged in a locking hole provided in said side wall. 6. When the button is pressed,
2. The leg attachment structure for a housing according to claim 1, wherein said second urging means has a length apart from the cylindrical body of said leg. 7. The leg attachment structure for a casing according to claim 1, wherein irregularities are provided on a peripheral edge of the grounding portion. 8. The leg attachment structure for a housing according to claim 1, wherein a center of a lower end of the grounding portion protrudes downward. 9. The apparatus according to claim 1, wherein the grounding portion is formed vertically and the lower portion is rotatably mounted on the upper portion.
The leg mounting structure of the described housing.