JPH09236195A - Adjusting leg for apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adjusting leg for an apparatus which 16 hardly broken and worn even when adjusting work is repeatedly carried out. SOLUTION: An adjusting leg for an apparatus comprises a leg 28 disposed at the lower part of the outer frame of an apparatus and a ground touching part 33 having diameter increased toward below and an uneven surface part 35, such as a screw, formed in the outer periphery of a shaft part 34; cases 24 and 25 for mounting through which the shaft part 34 of the leg 28 is extended along an axis; a lever 26 laterally rotatably arranged at the cases 24 and 25; and a lock piece 27 guided in a cam groove 53, formed in the lever 26 or the case 24 or itself, and contracted or expanded through rotation of the lever 26. The uneven surface part 35 is locked or unlocked through contraction or expansion of the lock piece 27.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device used for adjusting the inclination of an electronic / electrical device such as a washing machine or a projector (projector) when it is placed on the floor or a desk. Regarding adjusting legs.

[0002]

2. Description of the Related Art Conventionally, as a method often used for adjusting the height of a washing machine, an office chair or the like, a method of loosening a nut, turning a bolt to adjust the height and tightening the nut, or pulling a lever. For example, the up and down mechanism with a gas spring that can naturally lift the seat surface and fix it at a desired height can be lifted, but the former has the disadvantage that it takes time to adjust the height, and the latter is expensive. For this reason, Japanese Patent Laid-Open No. 2-7 describes an adjusting leg capable of adjusting the height by an inexpensive and simple operation.
There is the invention described in Japanese Patent No. 4298. As shown in FIG. 9, FIG. 10 (when disengaged) and FIG. 11 (when fixed), this is a leg bearing 2 provided in the lower portion of the device 1 and a leg bearing 2 provided so as to be movable up and down. A leg 4 that is constantly urged downward by a spring 3 and an adjusting knob 5 that is rotatably attached to the leg bearing 2 are provided with a plurality of vertically extending split grooves 6 on the circumference of the leg bearing 2. Partition wall 7 that can be formed and expanded
And a plurality of vertically extending first ribs 8 are provided on the outer diameter portion of the partition wall 7 of the leg bearing 2, and the inside of the adjusting knob 5 is formed in a polygonal shape, and the inner surface of the adjusting knob 5 is vertically extended. A plurality of second ribs 9 extending from the leg bearing 2 are provided.
The outer diameter portion of the partition wall 7 is surrounded by the inner diameter portion of the adjustment knob 5, and the rotation of the adjustment knob 5 causes the division wall 7 to move to change the inner diameter 10 of the leg bearing, and the adjustment knob 5
Is configured such that the rotation angle thereof is regulated by the contact between the first and second ribs, and when the rotation angle of the adjustment knob 5 is regulated, the inside diameter 10 of the leg bearing portion becomes small,
It is configured to prevent the leg 4 from moving in the vertical direction.

[0003]

However, in these conventional adjusting legs, the inner diameter of the bearing is changed in magnitude by simply turning the adjusting knob, and the leg is fixed (see FIG. 11) or disengaged (see FIG. 10). However, in order to make the inner diameter 10 of the leg bearing small, the partition wall 7 of the leg bearing 2 is forcibly elastically deformed by the inner diameter portion 11 of the adjusting knob 5. There is a risk of breakage during repeated elastic deformation and a difficulty in elastic recovery due to long-term stress when fixed. In addition, since the inner diameter portion 11 of the adjustment knob 5 and the dividing wall 7 of the leg bearing 2 are rubbed with a force applied thereto, there is a fear of wear during repeated adjustment work. If too much force is applied when turning the adjustment knob 5, the adjustment knob 5 may be elastically deformed and broken such that the first rib 8 gets over the second rib 9. The present invention has been made to solve the above problems, and an object of the present invention is to provide an adjusting leg for a device that is unlikely to be damaged or worn even after repeated adjustment work.

[0004]

The present invention employs the following configuration to achieve the object. That is, the equipment adjusting leg of the present invention is provided at the lower portion of the equipment outer frame, and has a leg having a grounding portion formed below and a concavo-convex portion such as a screw formed on the outer periphery of the shaft, The mounting case for inserting the portion into the shaft support hole, the lever rotatably provided in the case to the left and right, and the rotation of the lever guides the lever or the case or a cam groove provided in itself. A lock piece for reducing or expanding its diameter is provided, and the concave and convex portions such as the screw are locked or released by reducing or expanding the diameter of the lock piece.

[0005]

[Operation] According to the present invention, since the lock piece can be expanded or reduced in diameter and released or fixed according to the cam groove by simply rotating the lever to the left or right, a force for deforming the lock piece is applied. Never.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment (hereinafter, referred to as an "embodiment") of a device adjusting leg according to the present invention will be described with reference to the accompanying drawings. 1 is an exploded perspective view of the device adjusting leg 21, FIG. 2 is a plan view of an assembled state, FIG. 3 is a sectional view taken along line AA of FIG. 2, and FIG. 4 is a state of use. It is a front view, FIG. 5 is a cross-sectional view of the assembled state when locked, FIG. 6 is a bottom view of the case, and FIG. 7 is a BB cross-sectional view of FIG. The device adjusting leg 21 is used for the device 2
2, an upper case 24 that is inserted through and attached to an attachment hole 23 provided in the bottom of the second case, a lower case 25 that is integrally attached to the upper case 24, an upper case 24 and a lower case 2
5, a lever 26 that is rotatably stored in the left-right direction, a lock piece 27 that is axially supported in the upper case 24 and that reduces or expands in diameter by the movement of the lever 26, and a mounting hole 23 of the device Each shaft support hole 2 provided concentrically with the upper case 24, the lower case 25, the lever 26, and the lock piece 27.
The leg 28 is inserted into and supported by 9, 30, 31, 32 so as to be vertically movable.

The leg 23 is provided with a large-diameter grounding portion 33 on the lower side, an uneven portion 35 such as a screw is formed on the outer periphery of the shaft portion 34 on the upper side, and a retaining screw is formed inside the tip of the shaft portion 34. A screw hole 36 is formed for attaching the screw 37 and the washer 38. The retaining means for the shaft portion 34 is not limited to the above embodiment, but instead of the combination of the screw hole 36, the screw 37, and the washer 38, a pin may be inserted into the tip portion of the shaft portion 34, or the tip portion of the shaft portion 34 may be replaced. It may be formed to have a large diameter.

The upper case 24 has a device 2 on the upper side in the longitudinal direction.
The second mounting hole 23 has a cylindrical portion 39 whose outer periphery fits, and a cylindrical mounting portion 40 having a larger diameter than the cylindrical portion 39 is provided below the cylindrical portion 39.
Is formed. Further, the tubular mounting portion 40 is formed with a plurality of through holes 41 through which the screws 42 for fixing the device are inserted and a plurality of protrusions 43 for mounting the lower case 25 described later. In addition, the flat portion 4 is formed by cutting out a part of the tubular mounting portion 40.
4 is formed, and a cutout 45 for rotating the lever 26 is formed in the flat portion 44. The lower case 25 is substantially plate-shaped and has a screw hole 46 into which the device fixing screw 42 is screwed, and a locking plate 47 having a locking hole 48 to which the protrusion 43 of the upper case 24 is locked. doing.

The lever 26 comprises a disc portion 49 having a shaft support hole 31 through which the shaft portion 34 of the leg 28 is inserted, and a finger hook portion 50 formed outward from the disc portion 49. A pair of cam grooves 51 is formed on the upper surface of the disc portion 49 so as to gradually extend from the inside toward the outside. Further, a plurality of ribs 52 are provided in the vertical direction on the outer peripheral portion of the disc portion 49, and notches 53 are formed around the ribs so as to give the ribs 52 elasticity. As shown in FIG. 6, the upper case 24 is provided with a lock position groove 57 into which the rib 52 of the lever 26 is fitted and a release position groove 58, and the lock position and the release position are provided when the lever 26 is rotated. It is possible to give a click feeling (operation feeling) with.

Inside the upper case 24, a pair of lock pieces 27 having a shape obtained by dividing a cylindrical body having a shaft support hole 32 formed in the center into half are housed. This lock piece 27
A sliding projection 54 is provided on the bottom of the sliding groove 54 so that the sliding projection 54 fits into the cam groove 48 of the lever 26 and slides. A shaft 55 is provided on the outer peripheral portion of the lock piece 27 and is axially supported by a shaft support groove 53 formed inside the cylindrical portion 39 of the upper case 24 shown in FIGS. 6 and 7. In addition, the shaft support hole 32 is provided with an uneven portion 35 of the leg 28.
The concavo-convex portion is formed so as to fit into the. In addition, lever 2
The reason why the disc portion 49 of No. 6 and the internal storage position of the lock piece 27 are formed with a step is to eliminate the pitch difference that occurs when the uneven portion 35 of the leg 28 is a screw.

Next, how to use the device adjusting leg 21 according to this embodiment will be described. In order to attach the device adjusting leg 21 of the present invention to the device 22, first, the lever 2 is previously prepared.
Place the lock piece 27 on top of the 6
After assembling the sliding protrusion 54 of the above into the cam groove 51 of the lever 26, the lock piece 27 is inserted so that the shaft support groove 53 and the shaft 55 of the lock piece 27 fit in the cylindrical portion 39 of the upper case 24. The lower case 25 to the lower case 2
5 is pushed into the upper case 25 so that the locking plate 47 of No. 5 and the locking protrusion 43 of the upper case 24 are engaged with each other,
The lock piece 27 and the lever 26 are housed in 5. After that, the leg 28 is attached to the upper case 24, the lower case 25,
The lever 26 and the lock piece 27 are vertically inserted into respective shaft support holes 29, 30, 31, 32 provided concentrically, and then a screw 37 is attached to the tip of the shaft portion 34 of the leg 28 together with the washer 38 so as to prevent the lever 28 and the lock piece 27 from coming off. Install it. After that, from the upper side of the through hole 56 of the device, the through hole 56 of the device and the upper case 24
The screws 42 are screwed into the screw holes 46 of the lower case 25 through the through holes 41 of the upper case 24 and the lower case 25.
Is fixed to the device 22 together with the stored lock piece 27, lever 26, and temporarily fixed leg 28.
Is completed.

Subsequently, in order to adjust the height of the adjusting leg 21 for the device, the lever 26 is rotated clockwise as shown in FIG. 2, and the sliding projection 54 of the lock piece 27 is inserted into the cam groove 51 of the lever 26. It moves relatively to the outermost position, as shown in FIG.
As shown in, the lock piece 27 is expanded and the lock is released. At this time, the rib 52 of the lever 26 is attached to the upper case 2.
The operator can confirm that the lock has been released by fitting in the release position groove 58 of No. 4. When the lever 26 is rotated counterclockwise as shown in FIG. 2 after the heights are adjusted, the sliding protrusion 54 of the lock piece 27 relatively moves to the innermost position of the cam groove 51, and the lock piece 27 is rotated. 27
5 is reduced in diameter to fit the concave and convex portion of the shaft support hole 32 of the lock piece 27 into the concave and convex portion 35 of the shaft portion 34 of the leg 28, and is locked and fixed. At this time, the rib 52 of the lever 26 is fitted into the lock position groove 57 of the upper case 24, and the operator can confirm that the lock is made. As for the contraction and expansion of the lock piece 27, the shaft 55 of the lock piece 27 is pivotally supported by the pivot groove 53 of the upper case 24, so that a smooth restoring operation can be obtained.

When the height of the adjusting leg is changed by changing the place of the device, the lever 26 is rotated to unlock the lock as in the above-described operation, and the height is adjusted again.
6 may be rotated. Lock piece 27 has cam groove 5
Only the diameter is reduced and expanded by being guided by No. 1 and no pressing force is applied, so there is no risk of damage or wear even if the diameter is repeatedly decreased or enlarged. In addition, according to the above-described embodiment, since the tubular body of the upper case 24 is partially cut out, and the finger hooking portion 50 of the lever 26 is protruded from the notch, the case shown in FIG.
As shown in FIG. 5, the finger hook 50 can save space by only slightly protruding from the circumference of the upper case 24.

The present invention is not limited to the above embodiment. For example, in the above embodiment, the cam groove 51 is provided on the lever 26, and the sliding projection 54 for sliding the cam groove 51 is provided on the lock piece 27. However, conversely, the lock piece may be provided with a cam groove and the lever may be provided with a sliding projection. Not only that, the cam groove may be provided on the inner surface of the upper surface of the case, and the lock piece may be provided with a sliding projection for sliding the cam groove. As an embodiment in that case, a perspective view of the lock piece 60 is shown in FIG. 8, but this lock piece 60 has a sliding projection 61 formed at the upper end of one end for sliding with a cam groove provided in the case. A shaft 62 that fits into a shaft supporting hole provided in the lever is formed at the lower end, and a claw portion 63 that fits into the concave-convex portion 35 of the leg 28 is formed toward the inside on the sliding projection 61 side. It can be easily formed by pressing. According to this embodiment, when the lever is rotated, the sliding projection 61 fitted in the cam groove around the shaft 62 is guided by the cam groove to move inward or outward, and with this movement. The claw portion 63 is fitted into the concave-convex portion 35 of the leg 28, or the fitting is released. In addition, in this embodiment, the shaft 62 is provided in the lock piece 60 and the shaft supporting hole is formed in the lever, but the shaft may be provided in the lever and the shaft supporting hole may be formed in the lock piece. Further, in the above-described embodiment, the mounting means to the device is shown by screws, but a mounting method in which snap-fit type mounting legs are integrally formed in the case may be used. Further, in the above embodiment, the lever 26 is configured to be sandwiched between the upper case 24 and the lower case 25 and supported, but the large diameter portion 3 of the lever 26 and the leg 28 is provided.
A compression spring is provided between the lever 26 and the upper case 2
The lower case 25 may be omitted if it can be pressed and supported on the fourth side. If the lower case is omitted, an attachment means such as a screw hole may be provided in the upper case.

[0015]

Since the present invention is configured as described above, the following effects can be obtained. According to the invention of claim 1, the lock piece can be released or fixed by being expanded or reduced in diameter by being guided by the cam groove simply by rotating the lever to the left or right, so that no force for deforming the lock piece is applied. Therefore, it is possible to provide the adjusting leg for the device that is not easily damaged or worn even if the adjustment work is repeated.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing one embodiment of the present invention.

FIG. 2 is a plan view of an assembled state of one embodiment of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a front view showing one embodiment of the present invention.

FIG. 5 is a cross-sectional view showing the embodiment of the present invention when locked in an assembled state.

FIG. 6 is a bottom view of the upper case according to the embodiment of the present invention.

FIG. 7 is a sectional view taken along the line BB of FIG. 6;

FIG. 8 is a perspective view showing another embodiment of the present invention.

FIG. 9 is a cross-sectional view showing a use state of an embodiment of the related art.

FIG. 10 is a cross-sectional plan view showing the state of use of one embodiment of the prior art when the legs are released.

FIG. 11 is a cross-sectional plan view showing a use state of an embodiment of the related art when a leg is fixed.

[Explanation of symbols]

 21 Adjusting Leg 22 Equipment 24 Upper Case 25 Lower Case 26 Lever 27 Lock Piece 28 Leg 29 Case Axial Support Hole 32 Lock Piece Axial Support Hole 34 Shaft 35 Unevenness 51 Cam Groove 54 Sliding Protrusion 60 Lockpiece 61 61 Sliding Protrusion 62 Shaft 63 Claw

Claims (1)

[Claims] 1. A leg provided at a lower portion of an outer frame of a device, having a grounding portion formed below and an uneven portion such as a screw formed on an outer periphery of a shaft portion,
A mounting case for inserting an uneven portion such as a screw of the leg into the shaft support hole, a lever rotatably mounted on the case so that the lever can be rotated left and right, and a lever or a case provided on the case itself. An adjusting leg for a device, which is provided with a lock piece that is reduced in diameter or expands by being guided to the formed cam groove, and locks or unlocks the uneven portion such as the screw by reducing or expanding the lock piece.