JPH0444970Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] This invention relates to legs for home kotatsu.

[Problems that conventional technology and ideas try to solve]

Conventional home kotatsu legs are removed from the side frame of the kotatsu body and stored when the kotatsu is not in use. In other words, since the legs are screwed onto the side frame of the kotatsu, it takes time and effort to remove them.

The object of the present invention is to provide legs for a home kotatsu that can be easily and quickly folded and do not get in the way when the kotatsu is stored.

[Means for Solving the Problems] In order to achieve the above object, in the home kotatsu legs of the present invention, upper and lower locking pins are provided at the upper end of the script body. A quarter-circular arc-shaped guide guide groove into which the pin is movably inserted and a substantially L-shaped locking groove into which the lower locking pin is movably inserted are provided at the base of the leg, and The radius is set equal to the interval between the upper and lower locking pins, and the lower locking pin is always elastically pushed upward by a resilient member such as a spring fixed to the base of the leg. Furthermore, a substantially vertical locking groove portion communicating with the guide groove is provided.

[Effect]

In use, the upper locking pin locks at the upper end of the substantially vertical locking groove, the lower locking pin locks at the upper end of the approximately L-shaped locking groove, and the script body portion swings. It is held vertically without bending. In order to bend the script body part, it is sufficient to grasp the script body part, pull it downward, and swing it in a bending manner. At this time, the upper and lower locking pins move down in conjunction with each other within the substantially L-shaped locking groove or within the substantially vertical locking groove, and then the upper locking pin moves along the arcuate guide groove.

〔Example〕

An embodiment will be described with reference to the drawings. Fig. 1 shows a case where the legs for a home kotatsu according to the present invention are attached to the upper frame 11 shown by imaginary lines,
The leg has a leg base 7 fixed to a downward protruding portion 13 of the upper frame 11 with a connector 12 such as a bolt, and a leg base 7 that is folded via upper and lower locking pins 3 and 4. It consists of a script body part 1 that is bendably connected. 1st
Specifically, as shown in Figures 2 and 5,
The leg base 7 is covered with a covering member 14 made of plastic or the like.
and a fixing member 15 made of metal or the like that is inserted into the covering member 14. In addition, fixing member 1
The fixing member 15 and the covering member 14 are both fixed to the upper frame 11 by screwing the connector 12 into the female screw hole 16 provided in the upper frame 11 . As shown in FIG. 3 and FIG.
A rotating member 18 made of metal or the like is fixed to the rotating member 18. The rotating member 18 is internally fixed to the upper end of the supporting leg member 17 .

Therefore, in Figures 1 and 2, the script body part 1
The upper end portion 2 is provided with upper and lower locking pins 3 and 4 that are parallel to each other, and the fixing member 15 of the leg base 7 has a quadrangular shape into which the upper locking pin 3 is movably inserted. A substantially L-shaped locking groove 6 into which the lower locking pin 4 is movably inserted is provided. The radius R of the guiding groove 5 is set equal to the interval dimension S of the upper and lower locking pins 3 and 4, and the center O thereof is set to be equal to the distance S of the upper and lower locking pins 3, 4, and the center O thereof is set at the first This corresponds to the center of the cross section of the lower locking pin 4 on the imaginary line in the figure. Reference numeral 10 denotes a substantially vertical locking groove portion, which is disposed on the same straight line as the substantially vertical groove portion 9 of the substantially L-shaped locking groove 6 when viewed from the side, and is arranged on the same straight line as the substantially vertical groove portion 9 of the substantially L-shaped locking groove 6. It is provided in communication with the guide groove 5. Reference numeral 8, 8 is a resilient member made of a spring or the like and curved diagonally downwardly. The other end 20 is locked in a circumferential groove 21 formed at both ends of the lower locking pin 4, and as a result, the lower locking pin 4 is always elastically biased upward. This prevents the retaining pin 4 from coming off.

Although not shown, the substantially vertical groove portion 9 and the substantially vertical locking groove portion 10 do not necessarily need to be arranged on the same straight line, and may be provided, for example, in parallel. It is also preferable that one or both of the grooves 9 and 10 be arranged slightly inclined with respect to the vertical direction.

In the state where the script body portion 1 is resiliently biased downward by the resilient member 8 via the lower locking pin 4,
The lower end surface of the covering member 14 and the upper end flat portion 22 of the covering support leg member 17 abut, and the upper load is transmitted to the script body 1 via the leg root portion 7.

As shown in FIG. 4, one end of the resilient member 8 is fixed to protrusions 25, 25 formed by bending parts of the parallel left and right side plates 23, 24 of the fixing member 15 laterally. Through holes 26, 26 are provided, and
A rectangular fitting hole 28 is provided through the bent protruding piece 27 at the upper end of the rear plate 38 . Next, upper locking pins 3 are attached to the left and right side plates 29, 30 of the rotating member 18.
Support holes 31, 31, into which both ends are inserted and supported by press-fitting, etc.
A protruding piece 32 formed in a bent shape at the rear end of 30,
32 are formed with holding holes 33 through which both ends of the lower locking pin 4 are inserted and supported. 34, 35
are fasteners such as screws, and the fasteners 34, 35
Therefore, the screw hole 36 and the mounting protruding pieces 37, 37
The rotating member 18 is fixed to the covering support leg member 17 through the screw hole 38 (see FIG. 5).

As shown in FIG. 5, when the script body portion 1 is in a downwardly extending state, the locking protrusion 39 of the supporting leg member 17 is fitted into and locked in the fitting hole 28 of the fixing member 15. The horizontal shaking of the script body part 1 is reliably prevented. Further, the protruding pieces 37, 37 of the rotating member 18
is in contact with the lower surface of the flat portion 22 of the supporting leg member 17 and is fixed with a fixing member 35.

To bend the script body part 1, first, as shown in FIG. Stretch. At this time, the upper locking pin 3 is inserted into the substantially vertical locking groove 1
0, the lower locking pins 4 move downward in the substantially vertical grooves 9, respectively. Next, as shown in FIG. 7, by swinging the script body part 1 in a tensioned state around the lower locking pin 4 as shown by arrow B, the upper locking pin 3 is moved into the guide groove 5. At the same time, the lower locking pin 4 moves horizontally within the horizontal groove 19 of the locking groove 6 and is then locked in the horizontal groove 19. In this manner, as shown in FIG. 8, when the script body part 1 is bent horizontally, the upper locking pin 3 is placed at the lower end of the guiding groove 5, and the lower locking pin 4 is placed at the lower end of the guide groove 5. They are held in a locked state in the horizontal groove portions 19 of the approximately L-shaped locking groove 6, respectively. In this state, the script body 1 does not swing clockwise any further, and the lower end of the script body 1 does not lift up, even if the script body 1 vibrates when not in use. There is no problem such as hitting and damaging the heater (not shown) in the center of the upper frame 11. To make the script body part 1 in a folded state stand up vertically,
All you have to do is swing it about 90 degrees in the opposite direction.

In the present invention, since there is no need for an operating lever or the like for the bending operation, the bending mechanism becomes extremely simple. Furthermore, since no part of the internal mechanism is exposed to the outside, it can be said that the appearance is excellent.

[Effect of idea]

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

The script body part 1 does not wobble in the folded state. Therefore, the heater etc. will not be damaged.

Bending operations can be performed easily and quickly with one hand.

The operating mechanism for bending becomes extremely simple, and is robust and free from failure.

The operating levers, operating knobs, etc. are attached to the top frame 11.
Since there is no need to provide them on the top side or in other locations, there is no problem that they will get in the way during use, and the appearance is also favorable.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional side view of the main part showing an embodiment of the present invention, Fig. 2 is a perspective view of the main part, Fig. 3 is a perspective view of the upper end of the script body, and Fig. 4 is an exploded perspective view of the main part. , FIG. 5 is a vertical sectional view of the main part, and FIGS. 6 to 8 are action explanatory views. DESCRIPTION OF SYMBOLS 1...Screen body part, 2...Upper end part, 3...Upper locking pin, 4...Lower locking pin, 5...Guidance guide groove, 6
...Approximately L-shaped locking groove, 7... Leg base, 8...
Resilient member, 10... Substantially vertical locking groove portion, R... Radius, S... Spacing dimension.

Claims (1)

[Scope of utility model registration request] Upper and lower locking pins 3 and 4 are attached to the upper end 2 of the script body 1.
, a quarter-circular arc-shaped guiding groove 5 into which the upper locking pin 3 is movably inserted, and a substantially L-shaped locking groove 6 into which the lower locking pin 4 is movably inserted.
is provided at the leg base 7, and the radius R of the guiding groove 5 is set equal to the spacing dimension S of the upper and lower locking pins 3, 4, and is fixed to the leg base 7. The lower locking pin 4 is always resiliently biased upward by a resilient member 8 such as a spring, and is further provided with a substantially vertical locking groove 10 communicating with the guiding groove 5. Legs for home kotatsu.