JP3394492B2 - Fitting type adjustable feet for equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention installs relatively lightweight devices such as office machines, computers, projectors, overhead projectors, microscopes, and other home appliances on a floor or a desk. In some cases, the present invention relates to a device adjusting leg used for adjusting the inclination and height of the device. 2. Description of the Related Art Japanese Unexamined Patent Publication No.
One disclosed in Japanese Patent Publication No. 1-82881 is known. The outline is as shown in FIG.
, A lock body 20 slidably provided around a horizontal shaft 21 therein,
And a leg 31 provided with a threaded rod 30 penetrating the lock body 20 in the vertical direction.
A pair of female screw portions 22a, 2
2b is provided point-symmetrically about the horizontal axis, and the lock body 20 always has the threaded portions 22a and 22b
0, and is urged by a spring 40 to be screwed into the lock portion 20. The operating portions provided on the lock body 20 allow the screw portions 22a, 22
b can be separated from the screw rod 30. However, in the above-mentioned structure, the horizontal shaft 21 of the lock body 10 is of a type in which the horizontal shaft 21 is clamped by a half bearing 9a from above and below.
In order to hold 0 in the upper and lower cases 1a and 1b, the cases 1a and 1b must be split. In this case, the locking of the lock body 20 can be released by an operation using a lever integrally formed with the lock body 20. The whole structure, such as forming a part, becomes extremely complicated, and a large number of screwing operations are required for assembly, which is troublesome. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an adjusting leg for an apparatus which eliminates the above-mentioned complicated structure of the prior art and which can be easily mounted on an apparatus bottom plate. It is to be. Means for Solving the Problems An adjusting leg for equipment of the present invention comprises a case 1 fixed to a bottom plate A of equipment and a case 1
Case 1 which is arranged in a
, The case 1 and the lock body 20
The lock body 20 includes a pair of semi-cylindrical female screwing portions 22a that can be screwed into and separated from a part of the screw rod 30. ,
22b is provided point-symmetrically about the horizontal axis, and the lock body 20 is always provided with the threaded portions 22a and 22b.
The lock body 20 is provided so that the screw portions 22a and 22b can be separated from the screw rod 30 by an operation unit. The case 1 is a block of a molded article of hard synthetic resin having a slight elasticity, and the opposite parallel side walls 4 of the case 1 are provided with a bottom plate A of the equipment.
The case 1 is formed integrally with the case 1 with a horizontally projecting supporting projection 5 and an elastic check claw 7 which penetrates upward from the mounting hole A1 of the bottom plate A and elastically engages with the upper surface side surface of the mounting hole A1. The operating portion of the lock body 20 is a push button 50 formed of a hard synthetic resin having a slight elasticity and separate from the lock body 20, and the push button 50 is horizontally mounted on a part of the case 1. The push button 50 is pressed into contact with a part of the lock body 20 and pushed in, so that the threaded portions 22 a and 22 b are disengaged from the screw rod 30 against the spring 40. A part of the push button 50 has a second elastic check claw 5 that engages with the engagement angle hole 12 of the case 1.
2 are provided integrally. The pair of both side walls of the case 1
4 and 4 are provided with bearing holes 9.
Horizontal shaft guide from the case side end surface to the side of bearing hole 9
A groove 13 is provided, and an end face of the horizontal shaft 21 is laterally provided.
An inclined guide surface 24 is provided.
The surface is a cylindrical peripheral surface 25 having the same diameter.
The peripheral surface 25 is supported by the inner surface of the bearing hole 9.
You. FIG. 1 to FIG. 4 show parts already described in the means for solving the problems, and the description thereof will not be repeated. The case 1 is a one-piece synthetic resin molded product as a whole, and is made of a rigid and slightly elastic synthetic resin injection-molded product such as polyethylene, polypropylene, polycarbonate, or polyamide, and has a ceiling wall 2 and a bottom wall 3 having the same shape as seen in a plane. Are connected by a pair of parallel side walls 4, and on the outer surfaces of the side walls 4,
A support protrusion 5 for receiving the device bottom plate A and a part of both side walls 4 are provided with upward and downward bending tongues 6 and two non-return claws 7 at the tip of the tongue 6 in total. That is, the bending tongue piece 6 and the check pawl 7 at the tip thereof
Thus, the elastic check claw 8 is formed. A bearing hole 9 having a horizontal axis for supporting a horizontal shaft 21 penetrating therethrough is provided in the middle portion of the upright side walls 15. The case 1 has a sufficient mechanical supporting force in the vertical direction and does not buckle, but the side walls 4 are slightly bent outward during assembly. The ceiling wall 2 and the bottom wall 3 have through holes 10 and 11 through which a screw rod 30 passes.
Is provided. The lock body 20 is a block of die-cast metal,
It is formed by plastic deformation or forging (Fig. 2
Or FIG. 3), and is housed inside the case 1. A central hole 23 through which the screw rod 30 penetrates is provided in the center of the lock body 20 in the vertical direction.
, A short horizontal shaft 21 is integrally formed, and is fitted into the bearing hole 9 of the case 1 from the inside. The axis of the central hole 23 and the axis of the horizontal shaft 21 are orthogonal to each other. Each end face of the horizontal shaft 21 is formed with a guide surface 24 inclined sideward so as to be easily inserted into the bearing hole 9 described above. The upper half is a cylindrical peripheral surface 25 having the same diameter. On the inner peripheral surface of the central hole 13, semi-cylindrical screw portions 22a and 22b are formed point-symmetrically around a horizontal axis 21. The threaded portions 22a and 22b are
Are formed so as to be screwed into a part of the semi-peripheral surfaces of the respective members. At the lower end of the lock body 10, there is formed a cam-like projection 26 with which a bush button 0 described later abuts, and at the lower end of the lock body 10, a spring seat 27 is provided on the lower threaded portion 22b. The outer part is formed so as to protrude laterally. A screw rod 30 having a leg 31 at the lower end thereof passes through the central hole 23 of the lock body 20 from the through hole 10 of the bottom wall 3 and passes through the ceiling wall 9.
It is equipped with through. A spring 40 composed of a compression coil spring is provided between the spring seat 27 and the lower surface of the ceiling wall 2 of the case 1. The screw portions 22a and 22b of the lock body 20 are provided.
Is always urged in the direction of screwing into the threaded rod 30, and the horizontal shaft 2
1 and 2 is urged to rotate clockwise in FIGS. The upper surface of the bottom wall 3 of the case 1 and the lock body 20
A push button 50 is inserted between the lower surfaces of the push button 50. An operating rod 51 forming a part of the push button 50 and a second elastic check claw 52 are provided symmetrically on the outside of the push button 50. The inner end of the operating rod 51, that is, the inner end of the push button abuts on the cam-like projection 26 of the lock body 20, and the second elastic check pawl 52 engages with the engaging angle hole 12 provided on the side wall of the case 1. Then, the push button 0 is prevented from coming off the case 1. The entire push button 50 is injection-molded from the same material as the case 1. In the adjusting leg configured as described above, first, in order to insert the lock body 20 into the case 1, the horizontal shaft 21 is provided on the inner surface of both side walls 4 of the case 1. Push in according to 13. Then, the horizontal shaft guide groove 13 is easily slid into the horizontal shaft guide groove 13 by the inclined guide surface 24 at the end surface of the horizontal shaft 21, and the side walls 4 of the case 1 are slightly bent outward. When the horizontal shaft guide groove 12 is further pushed in,
Finally, the horizontal shaft 2 of the lock body 20 is inserted into the bearing hole 9 of the case 1.
1 is fitted, and the bending of the side walls 4 returns to the original state. When assembling the lock body 20 to the case 1, the spring 40
Is assembled as described above. In this manner, the cylindrical peripheral surfaces 25 of the left and right horizontal shafts 21 are supported by the bearing holes 9 provided in the side walls 4 of the case 1. That is, the lock body 20 is connected to and supported by the case 1 so as to swing around the horizontal axis 21. Further, since the thickness of the bearing hole 9 is sufficiently large, the cylindrical peripheral surface 25 of the horizontal shaft 21 is sufficiently supported. Next, when the pair of operating rods 51 of the push button 50 are pushed into the push button guide grooves 14 provided horizontally below the inner sides of the side walls 4 of the case 1, the operating rods 51 of the lock body 20 are pushed. Since the second elastic check claws 52 are fitted into the engagement angle holes 11 provided on the side wall of the case 1 at the same time as the cam-like projections 25 at the lower end, the push button 50 is assembled so as not to come off the case 1. Next, the push button 50 is pushed in to rotate the lock body 20 counterclockwise against the spring 40,
In this state, the screw rod 30 is inserted through the screw hole 10 of the bottom wall 3 of the case 1, penetrates the central hole 23 of the lock body 20, and further projects upward from the screw hole 9 of the ceiling wall 2 of the case 1. After that, release the finger from the push button 50. With this arrangement, the lock body 20 is rotated clockwise by the restoring force of the spring 40 in the opposite direction to the front in FIG. Screw on the side. Also, the push button 50 returns to the original position by the restoring force of the spring 40,
Since the second elastic check pawl 52 of the push button 50 is engaged with the engaging angle hole 11 of the case 1, the push button 50
Does not fall off Case 1. Thus, the case 1, the lock body 2
The assembly of the 0, the spring 40 and the push button 50 is completed, and the device adjusting leg B of the present invention is formed. In order to attach the adjusting leg B to the equipment, the equipment bottom plate A is provided with three mounting holes A1 into which the ceiling wall 2 and the bottom wall 3 of the case 1 just fit.
Or four perforations. From below these mounting holes A1,
When the case 1 of the adjusting leg B is inserted with the ceiling wall 2 facing upward, the elastic check pawls 7 on the left and right sides hit the edges of the mounting hole A1, and the bending tongue 6 is bent inward. After passing through the mounting hole A1, the elastic check pawl 7 returns to the original position. As a result, the bottom plate A of the device is supported on the upper surface of the supporting ridge 5, and the case 1 is firmly attached to the bottom plate A without moving vertically and horizontally. Similarly, attach all other adjustment feet B to the bottom plate A of the device. When the device is placed on a floor, a desk, or the like, and the device is tilted from a horizontal position, the leg 31 of the adjustment leg B which is set longer than the other adjustment legs B is rotated around the screw rod 30. Then, the protrusion length of the screw rod 30 from the case 1 is adjusted. When the difference between the protrusion dimensions of the legs 31 is too large, or when the support surface such as the floor has irregularities, the adjustment dimension becomes large. In such a case, the push button 50 is pressed, and the screw portion 22a of the lock body 20 is pressed.
By roughly separating the screw 22 from the screw rod 30 and expanding and contracting the relative positional relationship between the screw rod 20 of the leg 31 and the case 1, rough dimension adjustment is performed. Thereafter, the finger is released from the push button 50, and the screwing portions 22a and 22b are engaged with the screw rod 30 again. Then, the screw rod 30 is rotated around its axis to perform fine adjustment. In the illustrated embodiment, the size of one side of the ceiling wall 2 and the bottom wall was 14 mm, and the height was 15 mm. The material of the case 1 was hard polypropylene. The screw rod 30 was made of steel and had a shaft diameter of 2.5 mm. Lock body 20
Is a die cast product, the horizontal shaft 21 is formed integrally, and the peripheral surface and end surface thereof are cut or ground. The screwing portions 22a and 22b were formed by screw processing after die casting. These embodiments are merely examples, and are not limited to these materials, molding methods, and processing methods. According to the first aspect of the invention configured as described above, the opposite side walls 4 of the case 1 facing each other are provided with horizontally extending supporting ridges 5 for receiving the outer casing bottom plate A.
Through the mounting hole A1 of the bottom plate A and
An elastic check claw 7 elastically engaged with the upper side surface of the upper surface 1 is integrally formed, and the adjustment leg B is attached to the equipment bottom plate A immediately by fitting into the attachment hole A1 and elastic engagement. Therefore, no tools are required. Also, since the case 1 is integrally formed, it is durable, and the load of the equipment is limited to the supporting protrusion 5 of the case 1, a pair of horizontal shafts 21, screw rods 20, screw portions 22a and 22b, and legs 31. It is surely supported by. Further, the pair of both side walls of the case 1
4 and 4 are provided with bearing holes 9.
Horizontal shaft guide from the case side end surface to the side of bearing hole 9
A groove 13 is provided, and an end face of the horizontal shaft 21 is laterally provided.
Since the inclined guide surface 24 is provided, the case 1
In inserting the lock body 20, a pair of horizontal shafts 2
1 and 21 are pushed in according to the horizontal axis guide groove 13.
And water by the action of the inclined guide surface 24 of the horizontal shaft 21.
The flat shaft 21 easily slides into the horizontal shaft guide groove 13 and
The side walls 4 of the blade 1 are slightly bent outward.
Then, when the inside of the horizontal axis guide groove 13 is further pushed,
The horizontal shaft 21 is fitted into the bearing hole 9 of the case side wall 4.
Only, the bending of both side walls 4 will return to the original state,
Even if the case 1 is an integrally molded product, the case 1 and the lock body
20 can be easily assembled. Lock body 2
0 is connected to and supported by the case 1 so as to be able to swing around the horizontal axis 21.
However, since the peripheral surface of each support shaft 21 is a cylindrical peripheral surface 25 having the same diameter, the support area with the bearing hole 9 is increased, and a large supporting force is obtained. It can also be used as a leg for home appliances such as scanners, physics and chemistry equipment such as microscopes, washing machines, and mixers.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall perspective external view of an adjusting leg according to an embodiment of the present invention. FIG. 2 is a perspective view of a lock body and a push button of the adjustment leg of FIG. 1; FIG. 3 is a vertical sectional side view of the adjustment leg of FIG. 1; FIG. 4 is a partially cutaway front view of the adjusting leg of FIG. 1; FIG. 5 is a vertical cross-sectional view taken along a line MNQR of FIG. 4; FIG. 6 is a longitudinal sectional side view of a conventional example. [Description of Signs] 1 Case 2 Ceiling wall 3 Bottom wall 4 Side wall 5 Supporting lip 6 Flexing tongue 7 Elastic check claw 8 Elastic check claw 9 Bearing hole 9a Bearing 10 Through hole 11 Through hole 12 Hook angle hole 13 Horizontal Shaft guide groove 14 Push button groove 20 Lock body 21 Horizontal shaft 22a Threaded portion 22b Threaded portion 23 Central hole 24 Guide surface 25 Cylindrical peripheral surface 26 Cam-shaped protrusion 27 Spring seat 30 Screw rod 31 Leg 40 Spring 50 Push button 51 Actuating rod 52 Second elastic check pawl A Bottom plate A1 of device Mounting hole

Claims (1)

(57) [Claims 1] Case 1 fixed to bottom plate A of equipment
And a lock body 20 disposed in the case 1 and connected to the case 1 so as to swing around a horizontal axis 21, and a leg body 31 including a screw bar 30 penetrating the case 1 and the lock body 20 in a vertical direction. The lock body 20 is provided with a pair of semi-cylindrical female screw portions 22a and 22b which can be screwed and separated from a part of the screw rod 30 in point symmetry around the horizontal axis. The lock body 20 is always connected to the threaded portions 22a, 22
b is urged by a spring 40 to be screwed into the threaded rod 30,
The lock body 20 is connected to the screwing portion 22 by an operation portion.
a, 22b are provided so as to be able to be separated from the threaded rod 30, and the case 1 is a block of a hard synthetic resin molded article having a slight elasticity. Support ridge 5 that projects horizontally
Through the mounting hole A1 of the bottom plate A and
An elastic check pawl 7 elastically engaged with the upper side edge of the upper surface 1 is formed integrally with the case 1, and the operating portion is formed of a hard synthetic resin having a slight elasticity and separately from the lock body 20. The push button 50 is fitted in a part of the case 1 so as to be reciprocally slidable in the horizontal direction. The push button 50 comes into contact with a part of the lock body 20 and is pushed into the lock body 20. Screw portion 22a against the
22b and is provided with possible away from the threaded rod, a portion of the push button 50, the second resilient counter claw 52 engages the engagement angle hole 12 of the case 1 when there are provided integrally together
A bearing hole 9 is formed in the pair of side walls 4 and 4 of the case 1.
A bearing is provided on the inner surface of the side wall 4 from the case side end surface.
A horizontal axis guide groove 13 is provided on the side of the hole 9,
A guide surface 24 inclined sideways is provided on the end surface of the horizontal shaft 21.
Provided, the circumferential surface of the horizontal shaft 21 having an equal diameter cylinder
The cylindrical peripheral surface 25 is a bearing.
A fitting-type adjusting leg for equipment, which is supported by the inner surface of the hole 9 .