JPH0347543Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is installed on the bottom of electrical equipment, furniture, etc., and positions the bottom of the electrical equipment, furniture, etc. above the mounting floor with a gap. The present invention relates to a leg device that is used to allow the user to freely move up and down the vehicle.

[Conventional technology]

Conventionally, in electrical equipment, in order to dissipate the heat generated inside the equipment to the outside, a gap is formed between the bottom face of the electrical equipment and the floor surface on which it is placed. Leg devices are attached to the four corners.

Such a leg device is capable of adjusting the bottom position of the supported electrical device or the like in the vertical direction, assuming that there is an uneven surface on the mounting floor.

Further, furniture including a mounting stand for electrical equipment such as a television mounting stand is widely seen to be equipped with such a leg device.

As shown in FIG. 9, such a leg device is generally provided with guide holes b that open downward at least at the four corners around the bottom surface a of, for example, electrical equipment or furniture. A support member c having a screw hole is attached to the inside of a nut, etc., and a screw shaft d that can be screwed into the screw hole of the support member c is supported on a leg member f that projects above the base e. It is screwed onto member c, and by rotating the leg member f, electrical equipment, furniture, etc. to which the leg device is attached can be raised and lowered.

[Problem that the invention attempts to solve]

However, in the case of such a leg device, it is necessary to rotate the leg member by inserting a hand into a generally small gap between the bottom of the furniture, etc. and the floor surface on which it is placed. When electrical equipment, furniture, etc. are heavy objects, or objects with a large depth dimension, rotating leg members located at a deep position requires extremely difficult work.

Furthermore, if the gap between the bottom of the electrical equipment, furniture, etc. and the floor on which it is placed is small and there is not enough room to insert your hand, you can turn the electrical equipment, furniture, etc. to which this leg device is attached and rotate the leg member. In such cases, for example, if the mounting floor is uneven,
It is not suitable for making fine adjustments to level the bottom surface.

In view of these conventional problems, the leg device having a lifting mechanism of the present invention was devised.
To eliminate the need for lifting and lowering adjustments by inserting a hand between the bottom surface of electrical equipment, furniture, etc. to which this leg device is attached and the mounting floor surface, and to extremely easily perform fine adjustment of the lifting height. With the goal.

[Means for solving problems]

In order to achieve such an object, the present invention provides a guide hole that opens at least downwardly at approximately the center of one side of the horizontal plate, and a guide hole that opens downward at least on the lower surface of the horizontal plate, and long holes on both sides of the horizontal plate that are opposite to the guide hole. a pedestal having side plates facing each other having long holes in the horizontal direction; a sliding member having a threaded hole therein and protruding pins on both sides that can be inserted into the long holes in the side plates of the pedestal; at least the proximal end; The part extending over an appropriate length on the side is composed of a screw shaft that is screwed into the screw hole of the sliding member, and is pivotally supported in a loosely fitted state on the pedestal at the appropriate place, and the base end is made to look over the edge of the pedestal. a rotating member; a leg member having an upper end facing the receiving guide hole; a transmission member having one side pivoted to a sliding member in an appropriate position and the other side to a portion projecting from the lower end of the guide hole of the leg member in an appropriate position; It is an object of the present invention to provide a leg device having a lifting mechanism.

[Effect]

A leg device having such a lifting/lowering mechanism is fixed to the four corners around the bottom of electrical equipment, furniture, etc. by screwing a horizontal plate, for example, with the base end of the rotating member facing both sides. , it is also installed.

Therefore, while installing electrical equipment, furniture, etc. to which this leg device is attached on an appropriate mounting floor,
Depending on the level of unevenness of the mounting floor, the rotating member of the corresponding leg device may be rotated to adjust the bottom surface to be horizontal.

〔Example〕

Hereinafter, details of the leg device having a lifting mechanism of the present invention will be further explained based on the accompanying drawings.

Here, in the illustrated embodiment, FIGS.
As shown in the figure, at the bottom front position of the TV mounting stand A or overhead projector screen mounting stand, and of the casters B attached to the four surrounding corners, on the outside of the front two casters B,
When this leg device D is attached and the leg device D is contracted in the vertical direction, the mounting table A can be freely moved by the casters B, and when the leg device D is extended in the vertical direction, the front is caster B
The support shown in FIG. 1 is released, and the front of the entire mounting table A is slightly raised, so that, for example, the screen of a television set thereon is directed diagonally upward.

3 to 6 show the leg device having this elevating mechanism in a reduced state in the vertical direction.
The figure is a front view, Figure 4 is a bottom view, Figure 5 is a side view,
FIG. 6 shows a sectional view taken along line XX in FIG. 3, respectively.

In the figure, reference numeral 1 denotes a pedestal for attaching this leg device D to the bottom surface of the mounting table A, and the pedestal 1 has an opening 3 penetrating vertically at approximately the center of one side of the horizontal plate 2.
A cylindrical body 4 is fixed to the opening 3 so that its upper end surface coincides with the cylindrical body 4 and projects downward. 2. On the lower surface, a guide hole 5 is sandwiched between the two sides, and on the opposite side of the guide hole 5, there are elongated holes 6 in the longitudinal direction.
The side plates 7, 7 having the horizontal plate 6 are disposed opposite to each other with their lengthwise ends aligned with the lengthwise ends of the horizontal plate 2.

In the illustrated embodiment, the horizontal plate 2 is composed of a plate made of metal or the like, and the outer surface of one piece of angle material is made to face the lower surface of the horizontal plate 2 with a space between them.
... to form the side plates 7, 7.

Incidentally, reference numerals 9 are holes drilled in the horizontal plate 2 in order to attach the leg device D to the bottom surface of the mounting table A with screws or the like.

Reference numeral 10 in the figure denotes a screw hole 12 that penetrates the central part of the square columnar base 11 in the thickness direction and into which a screw shaft of a rotating member (to be described later) is screwed. This is a sliding member that is inserted into elongated holes 6, 6 drilled in 7, and has cylindrical pins 13, 13 protruding therefrom to be pivotally attached to one side of a transmission member, which will be described later.

Further, reference numeral 14 is a handle receiving part 15 by grinding the base ends so as to face each other, and a threaded shaft 16 that can be screwed into the threaded hole 12 of the sliding member 10 on the distal end side of the receiving part 15.
It is a rotating member.

The rotating member 14 has a screw shaft 1 on the tip side.
6, a pin 18' with stepped portions on both sides between the large diameter portion 17 and the screw shaft 16, and a pivot member 18 that is pivotally connected to the side plates 7, 7 of the receiving base 1. The screw shaft 16 is loosely inserted into a through hole 19 which is in contact with the side surface and is provided through the central part of the pivot member 18 in the thickness direction, and the tip surface of the large diameter part 17 is brought into contact with the outer surface of the cylinder 4. , the rotating member 14 is placed on the pedestal 1
It is pivotally supported with a loose fit.

Here, the screw shaft 16 of the rotating member 14 is arranged so that the sliding member 10 inserts the pins 13, 13 on both sides into the elongated holes 6, 6 of the side plates 7, 7 at least on the proximal end side. It is necessary to set the length so that it can be moved along the entire length.

In addition, a large-diameter portion 18'' having a larger diameter than the pin 18' is provided on the base end side of the pin 18' of the pivot member 18 in order to form a movement space for a transmission member and an elevating auxiliary rod, which will be described later. The step between the large diameter parts 18'' is connected to the side plate 7.
By abutting the pivot member 18, the pivot member 18 is rotatably supported between the side plates 7, 7 with movement restricted.

20 in the figure has a screw shaft 22 projecting upward from a lower pedestal 21, and the upper end of this screw shaft 22 is attached to a receiving base.
A leg member 23 is inserted into the guide hole 5 of the leg member 20 on one side on the inner surface side of the side plate 7 of the sliding member 10, and on the pins 13, 13 on both sides of the base 11 on the other side. 5. It is a plate-shaped transmission member pivotally attached to the part protruding from the lower end.

In the illustrated embodiment, a pivot rod 26 is provided with a screw hole 24 penetrating vertically in the center thereof, and a guide tube 25 is provided thereon, the inside of which communicates with the screw hole 24, and transmission is transmitted to both sides of the pivot rod 26. The other side of the member 23 is pivotally attached, and the screw shaft 22 of the leg member 20 is screwed into the screw hole 24 so that the upper end looks into the guide cylinder 25, and the guide cylinder 25 is slid into the cylinder body 4. It is decorated freely.

Further, numeral 27 indicates a nut for fastening and projecting a screw shaft 22 having a head 22' from one end of the pedestal 21 from the inner surface of the pedestal 21, and 28 indicates a nut for attaching the leg member 20 to the pivot rod 26. This is a compression nut for stably screwing and fixing the pedestal 2.
1 together with the screw shaft 22, the protrusion length of the pedestal 21 from the lower end of the pivot rod 26 can be set as appropriate.

Here, 29 in the figure is attached to the outer surface of the side plate 7 and the inner surface of the transmission member 23, with one end located approximately in the middle of a straight line connecting one end of the transmission member 23 and the pivot joint at the other end, and the other end located on the sliding member 10. on the same line in the vertical direction as the pin 13 of
Pivotally mounted directly above the pivot joint at the other end of the transmission member 23,
These are the lifting support rods arranged respectively.

By providing such a lifting auxiliary rod 29, as shown in FIGS. 3 and 7, the transmission member 2
3 and the pin 13 of the sliding member 10, the pivot joint between the transmission member 23 and the leg member 20, and the pivot joint between the side plate 7 and the elevating auxiliary rod 29.
A right-angled triangle is always formed between them during the lifting and lowering operations, and smooth lifting and lowering of the pedestal 1 with respect to the leg members 20 is achieved.

Furthermore, since this elevating auxiliary rod 29 is arranged on the outside of the transmission member 23 with the inner surface side of the side plate 7 of the pedestal 1 sandwiched therebetween, there is must have an interval of
A washer shown as 30 in the figure is fitted around the pivot shaft.

Further, since it is necessary to maintain a space between the pivot portion 19'' at the other end and the inner surface of the side plate 7, a washer 30 is similarly fitted around this pivot shaft.

As shown in FIG. 2, such a leg device D has handle receiving portions 15 of the rotating member 14 on the outside of the casters B in front of the bottom surface of the mounting table A.
While facing the front edge of the bottom of the pedestal 1 toward the front,
A portion corresponding to the guide tube 25 is provided at least for housing the end of the guide tube 25 that protrudes from the upper surface of the horizontal plate 2 when the distance between the horizontal plate 2 and the pedestal 21 is reduced as shown in FIGS. 3 to 6. The end of the guide tube 25 protruding from the upper surface of the horizontal plate 2 is placed inside the opening or recess, and the guide tube 25 is fixed by screws or the like using the through hole 9 of the horizontal plate 2.

In this way, the leg device D is placed on the mounting table A.
As shown in FIG.
1' and rotates, the sliding member 10 is moved in the elongated hole 6 of the pin 13, and the horizontal plate 2 is moved up and down with respect to the pedestal 21. 21 can be freely raised and lowered between the state shown in FIG. 3 and the state shown in FIG.

In the embodiment illustrated in FIGS. 3 to 6, the pedestal 2
The upper surface of the horizontal plate 2 always maintains a parallel relationship with the lower end surface when moving up and down, but as shown in FIG.
It is preferable to pivot the base plate 21 when used for purposes such as those shown in FIGS. 1 and 2, since the lower surface of the pedestal 21 and the upper surface of the horizontal plate 2 can form a desired angle.

In addition, the leg device D of the present invention can be used not only for the purposes shown in Figs. 1 and 2, but also for the four corners around the bottom of electrical equipment, furniture, etc., like conventional leg devices of this type. May be used.

Furthermore, if it is used as a leg device for a workbench that strictly requires leveling of the upper surface, the screw shaft 16 of the rotating member 14 and the threaded hole 12 of the sliding member 10 will have a threaded relationship with the leg member 20. Since the horizontal plate 2 is raised and lowered by the horizontal plate 2, the height position can be finely adjusted, and the upper surface can be leveled very easily and reliably regardless of the unevenness of the mounting floor.

[Effects of the invention] With the leg device having the lifting mechanism of the invention as described above, it is possible to lift and lower the attached electrical equipment, furniture, etc. in the vertical direction by horizontal operation. Therefore, even if the gap between the bottom surface of the electrical equipment, furniture, etc. and the mounting floor is small, sufficient elevating and lowering operations are possible, and the elevating and lowering operations can also be achieved without having to take an unreasonable posture.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the mounting table, Fig. 2 is a bottom view of the mounting table, Fig. 3 is a front view of the leg device having the lift mechanism of the present invention in a vertically reduced state; Figure 4 is a bottom view, Figure 5 is a side view, Figure 6 is a sectional view taken along line XX in Figure 3, Figure 7 is a front view of the leg member in the vertically extended state, and Figure 8 is a view of the leg member. A sectional view showing another embodiment, FIG. 9 is a sectional view of a conventional leg device. A: Mounting table, B: Caster, D: Leg device,
1: pedestal, 2: horizontal plate, 3: opening, 4: cylinder,
5: Guide hole, 6: Long hole, 7: Side plate, 8: Screw,
9: hole, 10: sliding member, 11: base, 12:
screw hole, 13: pin, 14: rotating member, 15: handle receiving part, 16: screw shaft, 17: large diameter part, 18:
Pivotal support member, 19: Through hole, 20: Leg member, 21:
Pedestal, 22: Screw shaft, 23: Transmission member, 24: Screw hole, 25: Guide cylinder, 26: Pivoting rod, 27: Nut, 28: Tightening nut, 29: Lifting auxiliary rod, 3
0: Washer, 31: Handle, 32: Ball joint.

Claims (1)

[Claims for Utility Model Registration] A guide hole that opens at least downward is provided approximately at the center of one side of the horizontal plate, and the guide hole is placed on the lower surface of the horizontal plate, and a lengthwise length is provided on both sides of the horizontal plate on the opposite side of the guide hole. a pedestal with opposing side plates having holes; a sliding member having a screw hole therein and protruding pins on both sides that can be inserted into long holes in the side plates of the pedestal; The length-long portion is composed of a screw shaft that is screwed into the screw hole of the sliding member, and is pivotally supported in a loosely fitted state on the cradle at an appropriate position, and a rotating member whose base end is exposed to the edge of the cradle. , a leg member whose upper end looks into the guide hole of the pedestal; a transmission member whose one side is pivoted to a sliding member in an appropriate position and the other side is pivoted to a portion of the leg member that protrudes from the lower end of the guide hole in an appropriate position; A leg device with a lifting mechanism.