JPH03110325A - Securing device for top plate for under floor type foot warmer wooden frame - Google Patents

Abstract

PURPOSE:To secure a top plate to an under floor type foot warmer wooden frame in an unmovable state and to facilitate release of the top from a securing state by a method wherein a fixing tool is removably mounted on a support member by means of a fastening screw with a control button, and an actuating rod pulls down an actuating ring suspended from the outer surface of an adsorber. CONSTITUTION:When an under floor type foot warmer wooden frame is not used for an under floor type foot warmer, a leg piece 24 loosely inserted externally of a support member 17 is firmly fastened by means of a fastening screw 25 through rotation of a control button 25A. When, after a fixing tool 20 is firmly mounted to the support member, the upper surface of the foot warmer wooden frame is covered with a top plate B, the top plate is supported by resilient members 3A, and the under surface of the top plate is adsorbed by means of adsorbers 21 of the respective fixing tools and the top plate is secured in an unmovable state. By rotating the control button in the reverse direction to the above, a clearance is produced between the fastening leg and the unfastened support member. Thereby, by inclining the fixing tool toward the corner side of a frame body 1, an actuating ring 27 is pulled down by an actuating rod 26 and therefore, a part of the adsorber 21 adsorbed to the under surface of the top plate is separated away from the top plate and air flows in the adsorber. Thus, the fixing tool can be easily removed from the support member, and the top plate can be released from a fixing state.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is used in ordinary homes and provides a top plate for removably fixing a top plate to be placed in place of a table or desk on a kotatsu yagura whose height can be adjusted up and down. relates to a fixing device.

[Conventional technology]

When the kotatsu yagura is not in use, there are cases where a top plate is placed directly on the kotatsu yagura and used instead of a table or desk.
33600 (Japanese Unexamined Patent Publication No. 62-190327) and Japanese Patent Application No. 1
-183252 and Japanese Patent Application No. 1-183253, the Kotatsu Yagura whose supporting legs can be extended and retracted is convenient because the height of the Kotatsu Yagura can be freely adjusted, so that when the Kotatsu Yagura is not used for heating purposes. In this case, the top plate is often placed directly on top of the kotatsu yagura and used instead of a table or desk.

[Problem to be solved by the invention]

However, the height of the Kotatsu Yagura can be changed by moving it up and down, so if you just put the top on the Kotatsu Yagura, the top may shift, and you cannot place items on the top in a stable state. There was a problem that I couldn't post it.

Therefore, the present invention provides a fixing device for a top plate in a kotatsu yagura, which can hold the top plate immovably on the kotatsu yagura when used in place of a table or desk, and also allows easy use of the front and back sides of the top plate. The purpose is to provide.

[Means to solve the problem]

To achieve the above object, the present invention provides a kotatsu tower in which the height can be adjusted by providing supporting legs that expand and contract in conjunction with each other at the four corners of the frame body, and in which the elastic member supporting the top plate is attached to the frame body. A support member is provided at each of the four corners of the body, and is provided near each corner of the frame body, and a leg piece is provided with a suction cup on the upper part to adsorb the top plate and is inserted loosely into the support member with a wobble. A fixing device at the bottom is removably attached using a tightening screw with an operation button, and an operating rod is provided on the fixing device to protrude toward the corner of the frame. It is characterized in that the rod is inserted into the ring so as to approach the lower end thereof.

[For production]

When the kotatsu yagura is not used as a kotatsu, the legs are loosely inserted into each support member and tightened tightly using the tightening screws by turning the operation button.After firmly attaching each fixture to each support member, the kotatsu When the top plate is placed over the top of the tower, the top plate is supported by an elastic member, and the suction cups of each fixing device suck the bottom surface of the top plate to fix it in an immovable state.

Also, if you turn the operation button in the opposite direction, the legs that were tightened will loosen and cause wobbling between them and the support member, so be sure to bow the fixture to the corner side of the frame. When tilted, the operating rod pulls the operating ring downward, causing a portion of the suction cup adhering to the bottom surface of the top plate to separate from the top plate, allowing air to flow into the suction cup. Therefore, the fixture can be easily removed from the support member, and the fixing state of the top plate can be released.

〔Example〕

Embodiments of the present invention will be specifically described below with reference to the drawings.

FIGS. 6 to 9 show an example of a typical implementation structure of a kotatsu yagura to which the top plate fixing device of the present invention is applied.

Washers 2 and elastic members 3 are installed at the four corners of the frame 1 of the kotatsu yagura.
A fixed shaft 4, which is tightened by a nut 3 fitted with A, is hanging down. Each fixed shaft 4 has an upper part formed into a round bar 4a, and a square bar 4b from the middle part to the lower part, and a disc-shaped collar 4c is provided at the boundary between the round bar 4a and the square bar 4b. . Each fixed shaft 4 is fitted with a cylindrical operation tube 5 which is rotatably engaged with the collar 4c. Note that the collar 4c is for rotating and holding the operation tube 5 in a fixed position.

The upper part of the operation tube 5 has a protrusion 6 having a cubic outer shape and is disposed within the frame 1. A chain gear 7 is fitted into this protrusion 6 and rotates together with the operation tube 5. It looks like this. Each chain gear 7 arranged at the four corners of the frame 1
The gears are successively connected by one endless chain 8, and are interlocked with other chain gears 7. A pair of guide gears 9, 9 are rotatably supported on both sides near each chain gear 7. These guide gears 9, 9 play the role of engaging the endless chain 8, bending the chain 8 greatly, and passing the chain to each chain gear 7. As if hugging it, insert it deeply into as many teeth as possible (
Occlusal.

Therefore, the tension caused by the chain 8 is not directly applied to the chain gear 7, but is applied in a relaxed state by the guide gears 9, 9.

A threaded groove 5a is provided on the inner circumferential surface of each operating barrel 5,
Each supporting leg 10 has a threaded thread 10a that is threaded into the threaded groove 5a formed over the entire outer circumferential surface thereof, and is screwed into each operating cylinder 5. In addition, the insertion hole 1 of the square rod 4b is located at the axis of each support leg 10.
1 is formed. This insertion hole 11 has a square rod 4 at its upper end.
A square hole 11a is inserted into the square hole 11a, and the remaining portion at the bottom is a circular hole 11b larger than the square hole 11a.
A step 11c is formed at the boundary with the square hole 11a.

A cylindrical elastic piece 12 is attached to the lower end of the square rod 4b of each fixed shaft with a washer 13 and a screw 14. The degree of closeness of this elastic piece 12 to the peripheral wall of the circular hole 11b of the supporting leg can be adjusted by adjusting the tightening condition of the screw 14. Therefore, by rotating the operation tube 5, the supporting leg 10
The elastic pieces 12 are pushed apart in the centrifugal direction by tightening the screws 14 by operating a screwdriver to a tightness that allows the support legs 10 to move up and down smoothly and to stably hold the supporting legs 10 on the fixed shaft 4. In addition, the elastic piece 12 is arranged so that when the supporting leg 10 is screwed out from the operation tube 5 and the kotatsu is at the highest position, the elastic piece 12
1c, and prevents the operating barrel 5 from rotating in the screwing direction and also prevents the supporting leg 10 from being pulled out. At this time, in order to reliably maintain the threaded state between the operating barrel 5 and the supporting leg 10 up to the highest height position, and to further maintain the stable state of the supporting leg 10, the lower end position of the operating barrel 5 is adjusted. , between the lower end of the elastic piece 12 and the path or below.

Reference numeral 15 is a knob for rotating the operating tube 5, and 16 is a long hole bored in the four corners of the frame 1 for fastening the fixed shaft 4, so that the tension of the chain 8 can be adjusted. Axis movement is possible. Further, near each of the four corners of the frame body 1, support members 17 are installed diagonally from the lower surface of the frame body 1.

When the kotatsu tower constructed in this manner is used for the purpose of keeping warm, as shown in FIG. The height of the kotatsu yagura can be adjusted at any time by rotating the operating cylinder 5 by hand.

Next, a fixing device for a top plate according to the present invention will be specifically explained with reference to FIGS. 1 to 5.

The fixing device 20 includes a suction cup 21 that sucks the top plate B from the bottom surface,
A receiver 23 into which the base 21A of the suction cup 21 is fitted and which is fixed with a split bottle 22 so that it cannot be removed, an S-shaped leg piece 24 whose upper piece is fixed to the lower surface of the receiver 23, and a lower piece of the leg piece 24. It is comprised of a tightening screw 25 with an operation button 25A that is screwed into a screw hole 24A drilled in the screw hole 24A so as to be able to move forward and backward.

The leg piece 24 has a insertion part 24B that is inserted into each support member 17 loosely with play toward each corner of the frame 1. The loosely inserted leg piece 24 is tightly fastened to the support member 17 by the tightening screw 25 that turns the operation button 25A in the tightening direction, and therefore,
The fixture 20 is held immovably by the support member 17.

The receiver 23 is provided with an actuating rod 26 that faces each corner of the frame 1 and protrudes with a downwardly bent tip. It is inserted through a portion of the ring 27 that is close to the lower end of the ring.

Therefore, turn the operation button 25A in the opposite direction and tighten the tightening screw 2.
5 to create some wobble in the relationship between the support member 17 and the leg piece 24, and then tilt the fixture 20 as if bowing toward the corner, the actuating ring pulled by the actuating rod 26 The suction cup 21 adhering to the lower surface of the top plate B is pulled downward via the suction cup 27.

The length of the actuating rod 26 is such that when the fixture 20 is held by the support member 17, the bent portion comes into contact with a corner of the frame 1. Further, the reason why the tip of the actuating rod 26 is bent into a hook shape is to prevent the actuating rod 26 from coming off the inside of the actuating ring 27. Further, the optimum diameter of the operation button 25A is such that it can be easily rotated with two fingertips.

The height position of the suction cup 21 of the fixture 20 attached to the support member 17 is between the heights of the elastic members 3A arranged on the four corner positions of the frame body 1.

It goes without saying that the fixtures 20 may be attached to all the support members 17 disposed at the four corners of the frame 1 so that they stick to the top plate B; The fixtures 20 may be attached to only the pair of support members 17.17 provided, and in this case also, the fixtures 20.
20 can fix the top plate B in an immovable state.

〔Effect of the invention〕

Since the present invention is configured as described above, it produces the following effects.

In other words, the fixtures are firmly attached to the support members placed near each corner of the frame using tightening screws, and the top plate is attracted by the suction cups of the fixtures, so the top plate remains stationary in the Kotatsu Yagura. Can be fixed.

Therefore, when something is placed on the top plate, it can be placed stably, and the kotatsu yagura, which has a height adjustment function, is particularly suitable as a substitute for a table or desk.

In addition, the suction cup attached to the bottom of the top plate can be removed by simply loosening the tightening screw with your fingertips and tilting the fixture slightly, making it extremely easy to unfasten the top plate. Therefore, not only the electric kotatsu part can be replaced, but also the top plate can be turned over and used on both sides smoothly by selecting as appropriate, allowing for a wide range of uses.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the device of the present invention, Fig. 2 is an exploded perspective view showing a fixture, which is the main component of the device, and Fig. 3
The figure is a partially cutaway perspective view showing an example of the usage state, Figure 4 is a vertical cross-sectional view showing the top plate in the fixed state, Figure 5 is a vertical cross-sectional view showing the top plate in the unlocked state, and Figure 6 7 is a perspective view showing an example of a kotatsu tower to which the device of the present invention is applied, FIG. 7 is a vertical cross-sectional view showing the structure of its supporting legs, FIG. 8 is an exploded perspective view of its members, and FIG. 9 is a gear. FIG. 10 is a partially cutaway perspective view showing the engagement of the chains and the electric kotatsu part. 1... Frame body, 3A... Elastic member, 10... Support leg,
17...Supporting member, 20...Fixing tool, 2nd...Sucker, 24...Leg piece, 25...Tightening screw, 25A...
・Operation button, 26... Operating rod, 27... Operating ring, B... Top plate No. 0 Figure 7 Figure 7

Claims (1)

[Claims] 1. Each supporting leg (10) expands and contracts in conjunction with the four corners of the frame (1).
) is installed vertically so that the height can be adjusted vertically, and elastic members (3A) for supporting the top plate (B) are provided at the four corners of the frame (1), and A support member (17) is arranged near each corner of (1), a suction cup (21) is provided at the top to adsorb the top plate (B), and the support member (17) is made to have a wobble so that it can be loosened. A fixing device (20) having a leg piece (24) at the bottom to be inserted is attached to a tightening screw (25) with an operation button (25A).
) is removably attached to the support member (17);
The operating rod (26) is attached to the frame (1) to this fixture (20).
The actuating ring (27) protrudes toward the corner of the suction cup (21) and the actuating rod (26) is inserted into the ring near the lower end thereof.
) A fixing device for a top plate in a kotatsu yagura, characterized by being installed vertically on the outer surface of the kotatsu yagura.