JPH04251126A - Leg for home type foot warming device - Google Patents

Abstract

PURPOSE:To provide a leg which can be easily and simply extended or retracted and of which entire structure is not complicated. CONSTITUTION:A sliding cylinder 2 which can be slidably inserted into a main body of a leg is provided. An oscillating member 8 pivotally supported at the first shaft 9 held at a sliding cylinder 2 is disposed in a main body 1 of the leg and at the same time a substantial U-shaped engaging groove 7 into which the second shaft 14 held at the main body 1 of the leg is disposed at the oscillating member 8. An operating member 33 to be slidably inserted into the sliding cylinder 2 is pulled to cause the oscillating member 8 to be oscillated and at the same time the engagement of the engaging groove 7 of the second shaft 14 for the engaging parts 18a and 18b is released and then the sliding cylinder 2 can be slid.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to legs for a home kotatsu.

0002

[Prior Art] In recent years, young people's bodies have developed significantly and their legs have become longer, so in home kotatsu tables that use legs that do not extend and contract, when the lower half of the body is placed in the home kotatsu, the top plate is placed on the table. The heating part of the kotatsu body is located too close to the body, causing problems such as getting too hot and sometimes causing burns, as well as being difficult to move. I've been exposed to it.

By the way, conventional extendable legs include, for example, an inner cylinder and an outer cylinder that is slidably fitted onto the inner cylinder, and the inner and outer cylinders are mutually locked by a locking mechanism. The lock can be held in an extended state or in a contracted state, and the lock can be released by the lock release mechanism, and in the unlocked state, the inner and outer cylinders can slide relative to each other. It was.

0004

SUMMARY OF THE INVENTION In the legs shown in the above-mentioned prior art, each mechanism is extremely complicated, making it troublesome to manufacture and easy to break. Moreover, the operation was troublesome, and the legs could not be easily extended and retracted.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide legs for a home kotatsu that can be easily and quickly extended and retracted, and that does not require a complicated overall structure.

[0006]

[Means for Solving the Problems] A home kotatsu leg according to the present invention includes a script body and a slide cylinder body slidably attached to the script body along the longitudinal direction. In the above, a rocking body having a substantially U-shaped locking groove consisting of a straight portion and a locking portion connected to each end thereof is connected to the swinging body through a first shaft held by the slide cylinder. An operating body which is swingably housed in the script body, has a second shaft inserted into the locking groove held in the script body, and has a finger locking part exposed to the outside is attached to the slide cylinder. The resilient member is slidably inserted into the holder and pulled in a predetermined direction to lock the second shaft in the locking portion of the locking groove, thereby locking the sliding cylinder. The operating body is interposed between the operating body and the rocking body, and the operating body is provided with a through hole, and when the operating body is pulled outward, it slides into contact with the peripheral edge of the through hole to swing the rocking body. A second shaft lock release member to be moved is provided on the swinging body.

[0007]

[Operation] When the second shaft is locked in the locking part of the locking groove of the rocking body, the rocking body is not rocked by the elastic member, so that state is maintained and the script body and The slide cylinder is in a locked state without sliding against each other.

Furthermore, when the operating body is pulled from this locked state, the second shaft lock release member slides into contact with the peripheral edge of the through hole of the operating body, and the swinging body resists the elastic force of the elastic member. and sway. In other words, due to this rocking, the second shaft comes off from the locking part, and
The oscillating body enters the straight line portion, and as a result, the oscillating body becomes slidable relative to the second shaft, and the slide cylinder holding the oscillating body via the first shaft becomes slidable.

[0009] Therefore, normally, the second shaft is locked in one of the locking grooves of the oscillator due to the elastic force of the resilient member, and the locked state is maintained and operation is not possible. If you pull your body outward, the lock will be released and you can slide.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in detail below based on drawings showing examples.

FIGS. 1 and 2 show a leg for a home kotatsu according to the present invention, which consists of a base 1 and a slide cylinder 2 that is slidably attached to the base 1 in the longitudinal direction. It is equipped with.

The script body 1 is composed of a cylindrical portion 3 having a downward opening and a protruding portion 5 protruding from the upper wall 4 of the cylindrical portion 3, and a cover member 6 is attached to the protruding portion 5. is installed. The protruding portion 5 includes front and rear walls 5a, 5b, an inner wall 5c, and a curved wall 5d continuous from the upper end of the inner wall 5c to the upper wall 4 of the cylindrical portion 3.

A swinging body 8 having a locking groove 7 is housed in the script body 1 so as to be swingable via a first shaft 9 held by the slide cylinder 2.

That is, the rocking body 8 has a substantially U-shaped hole 10.
a and a circular hole 10b, and ribs 11a and 1 that protrude back and forth along the outer periphery of the main body 10.
1a, ribs 12a, 12a protruding back and forth along the periphery of the hole 10a of the main body 10, and ribs 13a, 13a protruding back and forth along the circular hole 10b. 10a and the ribs 12a, 12a form the locking groove 7, and the circular hole 10b and the ribs 13a, 13a form the insertion hole 16 into which the first shaft 9 is inserted. Therefore, the locking groove 7 consists of a straight portion 17 and locking portions 18a and 18b that are connected to the ends of the straight portion 17,
It is said to be approximately U-shaped. Further, a second shaft 14 held on the script body 1 is inserted into the locking groove 7, and the second shaft 14 is inserted into the locking groove 7.
is held by a core 19 attached to the script body 1.

That is, the core 19 has a fitting portion 20 that is fitted into the protrusion 5 and a mounting portion that is attached to the upper wall 4 of the cylindrical portion 3 of the script body 1 via a fixing member 21 such as a screw. 23 and the fitting part 2
A pair of front and rear hanging walls 24, 24 are provided vertically from 0, and through holes 25, 2 are provided at the lower ends of the hanging walls 24, 24, respectively.
5 is provided therethrough, and the second shaft 14 is fitted into the through holes 25, 25. Reference numerals 26, 26 are ribs that are connected to the hanging walls 24, 24 and the mounting parts 23, 23.

Therefore, as shown in FIG. 1, when the second shaft 14 is locked to the locking portion 18a, the swinging body 8 is rotated as shown in FIG.
As shown in FIG. 3, the second shaft 14 can be swung as shown by arrow A and positioned at the lower end of the straight portion 17.

[0017] The slide cylinder 2 has an upwardly opening shape, and a recess 28 is formed in the bottom wall 27 of the slide cylinder 2.
On this bottom wall 27, a pair of upright walls 29, 29 are provided upright. The upper end portions of these rising walls 29, 29 are provided with through holes 30, 30.
, 30 are fitted with the first shaft 9. 31, 31 are ribs attached to the rising walls 29, 29.

Therefore, in the state shown in FIG. 5, if the slide cylinder 2 is pulled downward as shown by arrow B, the swinging body 8 will be pulled downward together with the cylinder 2, as shown in FIG. The second shaft 14 is located at the upper end of the linear portion 17 of the locking groove 7, and from this state the swinging body 8 swings in the direction of arrow C around the first shaft 9, as shown in FIG. The second shaft 14 is locked to the locking portion 18b.

Further, as shown in FIG. 4, fitting grooves 32, 32 are provided on the opposing surfaces of the rising walls 29, 29.
A flat operating body 33 is slidably fitted into the fitting grooves 32, 32.

That is, the operating body 33, as shown in FIG.
It is inserted into the slide cylinder 2 through the insertion hole 34 formed through the bottom wall 27 of the slide cylinder 2, and its tip 33a is fitted into and removed from the fitting groove 35 provided on the lower edge of the rocking body 8. Fit freely. Further, a finger locking portion 36 consisting of a through hole is formed at the lower end of the operating body 33, and a through hole 37 is provided near the upper end of the operating body 33. That is, the operating body 33 is slidable in the longitudinal direction along the fitting grooves 32, 32, and the finger locking portion 36 is exposed to the outside from the insertion hole 34.

[0021]Therefore, between the operating body 33 and the swinging body 8, there is provided a mechanism for pulling the swinging body 8 in a predetermined direction and locking the second shaft 14 in the locking portions 18a and 18b of the locking groove 7. A resilient member 38 is interposed.

That is, a locking piece 39 is provided vertically from the lower end of the swinging body 8, a locking piece 40 is provided protruding from the approximate center of the operating body 33, and the elastic member 38 made of a coil spring is One end is locked to the locking portion 39a of the locking piece 39, and the other end is locked to the locking piece 40. Therefore, this resilient member 38
As a result, the swinging body 8 is pulled in the direction of swinging in the direction of arrow C about the first shaft 9.

Further, a second shaft locking release member 41 is provided at the lower end of the swinging body 8, which allows the second shaft 1
4 is released from the locking portions 18a and 18b.

This release member 41 has a first part 41a and a second part 41a.
The first part 41a and the second part 41b are bent at a predetermined angle, and the second part 41b is inserted into the through hole 37 of the operating body 33.

That is, as shown in FIG.
b comes into sliding contact with the peripheral edge 42 of the through hole 37, and as a result, the swinging body 8 swings around the first shaft 9 as shown by arrow A.

If the operating body 33 is further pulled in the direction of the arrow B from this state, the swinging body 8 and the slide cylinder 2 are moved in the direction of the arrow B because the release member 41 is locked in the through hole 37. As shown in FIG. 6, the operating body 33
When the tension in the direction of arrow B is released, as shown in FIG. It is in a state where it is locked in the locking portion 18b of the locking groove 7.

Therefore, with this leg, if you hook your finger on the finger locking part 36 of the operating body 33 from the state shown in FIG. 1 (that is, the short state) and pull it in the direction of arrow B, the second When the locking of the shaft 14 to the locking portion 18a is released, the slide cylinder 2 can be in an elongated state as shown in FIG. When the tension is released, the second shaft 14 moves to the locking part 18 as shown in FIG.
b and enters the locked state.

Further, after pulling the operating body 33 in the direction of arrow B from this elongated state to the unlocked state as shown in FIG. If the slide cylinder 2 is pushed into the script body 1 without being locked in the locking part 18b, the second shaft 14 will be located at the lower end of the straight part 17 of the locking groove 7, as shown in FIG. In this state, if the operating body 33 is set to a free state, the swinging member 8 swings in the direction of arrow C by the resilient member 38, and enters a short locked state, as shown in FIG.

A stepped portion 44 is provided at the lower end of the peripheral wall 43 of the slide cylinder 2, and in the short state shown in FIGS. 1 and 2, the slide cylinder 2 is inserted into the base body 1. The lower end surface 45 of the script body 1 is in contact with the stepped portion 44, and in this state, the tip portion 3 of the operating body 33 is in contact with the stepped portion 44.
3a is fitted into the fitting groove 35 of the rocking body 8, and the second shaft 14 is locked to the locking portion 18a of the locking groove 7.

[0030] Therefore, in this short state, the script body 1 and the slide cylinder body 2 are reliably locked.

Furthermore, even in the long state shown in FIG. 18b, and the script body 1 and the slide cylinder body 2 are reliably locked.

The script body 1 is pivotally attached to the lid member 6 via the pivot shaft 46 so as to be foldable and unfoldable, and its folding and unfolding operations are performed using the operating mechanism M shown in FIGS. 1 and 2. This can be done via.

That is, as shown in FIGS. 8 and 9, the pivot shaft 46 is held by a holding frame 47 fixed to the lid member 6, and is attached to the front and rear walls 20a, 20b of the fitting portion 20 of the core 19. It is inserted into the through holes 48, 48 provided therethrough. The holding frame 47 also includes an upper wall 47a, front and rear walls 47b, 47c, and an inner wall 47.
d, and a through hole for holding the pivot shaft 46 is provided in the front and rear walls 47b and 47c.

Therefore, the script body 1 can swing around the pivot shaft 46, and can be in the unfolded state where it is disposed in a straight line with the lid member 6 as shown in FIG. As shown, the folded state is substantially perpendicular to the lid member 6.

The operating mechanism M includes a swinging member 49 that is swingably held by the holding frame 47, a resilient member 50 that presses one end of the swinging member 49 toward the script body 1, In the state shown in FIG. 1, the swing of the screenplay body 1 is restricted.

That is, as shown in FIGS. 1 and 10, the swinging member 49 has a through hole 5 formed through the upper wall 47a of the holding frame 47.
1, which includes a pressing part 52 having a vertical U-shape in cross section, a tongue part 53 protruding from the pressing part 52, and a rising wall 54 erected from the tongue part 53. , 54, and a pivot shaft 55 whose end portions protrude to the outside through the rising walls 54, 54, and the end portion of the pivot shaft 55 is connected to the through hole 51 of the upper wall 47a. It is fitted into supporting recesses 56, 56. Therefore, this swinging member 49 swings about the pivot shaft 55 as indicated by arrows D and E shown in FIG.

Further, the tip end 53a of the tongue piece 53 is bent downward, and a groove 57 for holding one side of the resilient member 50 is provided on its upper surface, and the lower surface of the upper wall 6a of the lid member 6 is resiliently disposed. A ring-shaped groove 58 for holding the other side of the generating member 50 is provided. Therefore, one end of the swinging member 49 (that is, the tip 53a
) is constantly pressed toward the script body 1 by this resilient member 50. A protrusion 67 is provided on the lower surface of the upper wall 6a of the lid member 6, and the protrusion 67 slides on the pivot shaft 55 to prevent the swinging member 49 from wobbling.

[0038] Locking pieces 60, 60 are protruding from the base end surface 59 of the swinging member 49, and the upper end of the protruding portion 5 of the script body 1 is provided with the locking pieces 60, 60 as shown in FIGS. 1 and 2. As shown, a fitting part 61 is formed into which the tip 53a of the tongue part 53 of the swinging member 49 is removably fitted. That is, this fitting part 61
is formed by a rising wall 62, front and rear walls 63a, 63b, and a flat upper end surface 64 of the protrusion 5.

Therefore, as shown in FIG. 1, in the unfolded state, the distal end portion 53a fits into the fitting portion 61, and
The locking pieces 60, 60 lock onto the upper wall 47a of the holding frame 47 and reliably maintain the expanded state.

From this state, the through hole 65 of the lid member 6
When the pressing portion 52 of the swinging member 49 exposed from above is pressed as shown by the arrow F, the swinging member 49 swings as shown by the arrow D around the pivot shaft 55, as shown in FIG. The fitting and locking are released. Therefore, the script body 1 can be swung and can be brought into a folded state as shown in FIG. 12. In this folded state, the rising wall 6 forming the fitting part 61
2 is locked in a locking recess 66 provided in the lid member 6.

Conversely, if the script body 1 is swung in the unfolding direction from the state shown in FIG. 12, as shown in FIG.
The tip portion 53a fits into the fitting portion 61, and the locking piece 6
0 and 60 are locked to the upper wall 47a, resulting in the unfolded state. In addition, in Figures 1, 11, and 12, 68
are fasteners such as bolts for attaching the legs to the kotatsu body. Further, in the state shown in FIGS. 1 and 7, the operating body 33 does not protrude from the bottom wall 27 of the slide cylinder 2.

FIGS. 13 and 14 show another embodiment of the script body 1, in which the cylindrical portion 3 and the protruding portion 5 are separate members, and the protruding portion 5 is provided with a second shaft 14. Hanging walls 70, 70 are installed vertically to hold the
Through holes 71, 71 into which the second shaft 14 is inserted are provided. Further, in this case, mounting pieces 72, 72 are provided protruding from the hanging walls 70, 70, and the mounting pieces 72, 72 are attached to the cylindrical portion 3.
It is attached to the upper wall 4 of the housing via a fixing member 21.

Therefore, in the embodiments shown in FIGS. 13 and 14, by making the cylindrical portion 3 and the protruding portion 5 separate members, the manufacturing thereof becomes extremely easy and there is an advantage that it can be provided at low cost.

Note that the present invention is not limited to the above-described embodiments, and design changes may be made without departing from the gist of the present invention.
The external shape etc. can be changed freely, and the slide cylinder body 2 can be freely fitted into the script body 1.

[0045]

[Effects of the Invention] Since the present invention is constructed as described above, it produces the following effects.

[0046] Operating body 3 exposed from slide cylinder 2
3, it can be expanded and contracted easily and quickly, and the overall structure is not complicated.

[0047] Therefore, by using these legs, the height of the home kotatsu can be easily adjusted according to the user's body size, purpose, etc., making it convenient.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional front view showing one embodiment of the present invention.

FIG. 2 is a cross-sectional side view of the same.

FIG. 3 is a sectional view taken along line XX in FIG. 1;

FIG. 4 is a cross-sectional view taken along the line Y-Y in FIG. 1;

FIG. 5 is a sectional view of a main part for explaining the action.

FIG. 6 is a sectional view of a main part for explaining the action.

FIG. 7 is a sectional view of a main part for explaining the action.

FIG. 8 is a cross-sectional side view of essential parts.

9 is a sectional view taken along the Z-Z line in FIG. 1. FIG.

10 is a cross-sectional view taken along the line WW in FIG. 1. FIG.

FIG. 11 is a sectional view of a main part for explaining the action.

FIG. 12 is a sectional view of a main part in a folded state.

FIG. 13 is a sectional front view of main parts of another embodiment.

FIG. 14 is a cross-sectional side view of the same essential part.

[Explanation of symbols]

1 Script style 2 Slide cylinder 7 Locking groove 8 Rocking body 9 First axis 14 Second axis 17 Straight section 18a Locking part 18b Locking part 33 Operation body 36 Finger locking part 37 Through hole 38 Elastic member 41 Second shaft lock release member 42 Peripheral part

Claims (1)

[Claims] [Claim 1] A leg for a home kotatsu comprising a script body 1 and a slide cylinder 2 slidably attached to the script body 1 along the longitudinal direction, which communicates with a straight portion 17 and an end thereof, respectively. A rocking body 8 having a substantially U-shaped locking groove 7 consisting of connected locking portions 18a and 18b is swingable via a first shaft 9 held by the slide cylinder 2. The operating body 33, which is installed inside the script body 1 and is inserted into the locking groove 7, is held in the script body 1, and the finger locking portion 36 is exposed to the outside, and the operation body 33 is slid. The sliding cylinder 2 is slidably inserted into the cylinder 2, and the swinging body 8 is pulled in a predetermined direction to lock the second shaft 14 in the locking portions 18a and 18b of the locking groove 7, thereby locking the slide cylinder 2. A resilient member 38 is interposed between the operating body 33 and the rocking body 8, and a through hole 37 is provided in the operating body 33, and a resilient member 38 is provided to allow the operating body 33 to be pulled outward. A leg for a home kotatsu, characterized in that the swinging body 8 is provided with a second shaft locking release member 41 that slides into contact with the peripheral edge 42 of the through hole 37 to swing the swinging body 8.