JPH0689899B2 - Leg folding kotatsu - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a leg foldable kotatsu in which a leg is freely foldable.

(B) Conventional technology Conventionally, the leg folding mechanism of Kotatsu is based on Jitsuko Sho 52-52779.
As shown in Japanese Patent Laid-Open Publication No. JP-A-2003-187, it is composed of a fixing member fixed to the kotatsu or wobble frame side and a leg mounting member rotatably supported on the fixing member by a support shaft. However, since each of the fixing member and the leg mounting member is exposed, there is a risk that the fixing member or the leg mounting member may pinch a finger when folding or standing up. Further, since the folding mechanism is exposed as described above, the lower part of the sock is caught on the support shaft and is torn, and the appearance is unsightly and unsuitable for so-called furniture-like kotatsu made of high-grade wood.

(C) Problem to be Solved by the Invention According to the present invention, a hollow fixing leg that covers the periphery of each of a leg mounting member and a leg fixing member that configures a folding mechanism, and a cover finger that is fixed inside a supporting leg are removed. Prevent getting caught.

(D) Means for Solving the Problem The present invention is a frame body in which a plurality of frame trees are combined in a frame shape through corner fittings, and a leg body fixed to a corner portion of the frame body, The leg body is a hollow fixed leg that is fixed to the corner fitting and has an open lower surface, and an insertion portion provided on the upper portion is insertable into and removable from the opening of the lower surface of the fixed leg and is foldable through a shaft. And a hollow support leg provided on the fixed leg, the leg mounting bracket is fixed in the fixed leg, the periphery of the leg mounting bracket is covered with the fixed leg, and the leg fixing bracket is fixed in the support leg. The periphery of the leg fixing bracket is covered with the supporting leg, and a part of the leg mounting bracket exposed from the fixing leg and a part of the leg fixing bracket exposed from the supporting leg are pivotally supported.

Also, the leg fixing metal fitting is fixed to the insertion part of the support leg, and a side wall facing the axis of the insertion part is a curved wall, and a step corresponding to the thickness of the side wall of the fixed leg is provided below the curved wall. Is.

(E) Action The leg mounting bracket is fixed inside the fixed leg, and the leg fixing bracket is fixed inside the support leg. The leg mounting bracket that is exposed from the fixed leg and part of the leg mounting bracket that is exposed from the fixed leg is covered. Since part of the shaft is pivotally supported, the hand will not touch the leg mounting bracket or leg fixing bracket, and the exposed part will be pivotally supported so that the shaft supporting part will be fixed or supported during folding or standing. Has no effect on the legs.

Further, since the curved wall is provided at the insertion portion of the support leg and the step provided at the lower portion of the curved wall is formed by the thickness of the fixed leg, the leg fixing bracket is covered by the curved wall even when the support leg is folded. Also, after folding, there is no sharp edge so that the foot does not hit and the leg is not damaged, and the outer surfaces of the fixed leg and the support leg are aligned when standing up to give a good-looking appearance.

(F) Embodiments Embodiments of the present invention will be described with reference to the drawings.

(1) is a frame (2) (2) (2) of multiple (4)
A frame body in which (2) is combined in a frame shape through a corner metal fitting (3), and legs (4), (4), (4) and (4) are attached to the corner portions. A crosspiece (5) is suspended on the frame body (1), and a heater unit (6) for heating is arranged substantially at the center. A power supply cord (7) is attached to and detached from the heater unit (6). Further, a kotatsu blanket (K) or a table plate (T) is placed on the upper surfaces of the frame body (1) and the leg bodies (4). Both sides of the corner metal fitting (3) are engaged with the groove (2a) of the frame (2) (2) and screw (8)
Form the insert pieces (3a) (3a) that are fixed in place, form the long elongate flange pieces (3b) (3b) on the top and bottom, and insert the pair of insertion holes (3c) in the lower flange piece (3b). ) (3c) is drilled and a screw hole (3d) is drilled approximately in the center.

The leg body (4) is composed of a fixed leg (4a) whose lower surface is open and whose periphery is a wall surface, and a hollow support leg (4b) which is rotatably supported by the lower surface of the fixed leg (4a). It is configured. The fixed leg (4a) has a pair of step parts (1) on which the collar piece (3b) is placed.
0) (10), a notch (11) formed between the steps (10) and (10), and a rectangular long hole (1) formed on the upper surface.
2) and an insertion hole (13) facing the screw hole (3d). Reference numeral (14) is a leg mounting member that is fixed to the inner wall of the fixed leg (4a) and covers substantially the entire circumference thereof, and has a screw hole ( 14a) is formed on both side walls of the fixed leg (4a) and is inserted and engaged with the insertion grooves (15) (15) formed on the inner wall of the fixed leg (4a).
b) (14b) and a pair of engaging pieces (14d) (14d) (14d) forming a notch opening (14c) facing the elongated hole (12) on the upper surface.
d) is bent downward, and a mounting piece (14e) for mounting the flange piece (3b) of the corner metal fitting (3) is formed in the lower portion at the lower part (11). . A pair of opposing mounting pieces (14f) (14f) exposed from both side walls of the fixed leg (4a) are formed on both sides of the mounting piece (14e), and a shaft hole (14g) is formed in the pair of mounting pieces (14f) (14f). Engaging claws (14h) (14h) inserted into and engaging with the insertion holes (3c) (3c) on the other side of the placing piece (14e).
Is formed. (18) is an unlocking operation button provided in the elongated hole (12), which is engaged with a recessed shaft support (20) (20) formed at the opening edge of the elongated hole (12) at the rear ends of both lower sides. A locking projection (21) (21) for stopping, a retaining projection (22) (22) for retaining from the elongated hole (12), and a pressing piece (23) formed at the lower front end. Are formed respectively. The upper surface of the unlocking operation button (18) should be lower than the opening of the elongated hole (12), and should be slightly less than the upper surface of the fixed leg (4a) so that it does not protrude as a whole. There is. (2
5) is an elastic leaf spring, which is fixed to the inner surface of the upper part of the fixed leg (4a) from the lower surface of the button (18) with a screw (26) so that the button (18) is always held in a horizontal position. ing.

The support leg (4b) has a hollow lower surface with an open bottom surface, and is hollow inside the fixed leg (4a) so that it can be inserted and removed by rotating from a lower opening. And a long leg part (29) which becomes a leg. The first insertion part (2
Long hole cutout (30) from the upper surface of 8) to the side wall on the front side
And the insertion holes (31) and (31) are formed on both sides thereof, and the rear curved wall (32) facing the insertion hole is formed. In the lower part of the curved wall (32), there is formed a step (32h) having a thickness approximately equal to the thickness of the fixed leg (4a). In the second insertion portion inserted and arranged in the first insertion portion (28), a curved wall (34) having a shape similar to that of the curved wall (32) is formed, and the screws (35) (35) are used to 1 Insertion part (28) screw hole (41)
(41) and the second insertion portion (33) are fixed through the screw holes (37) (37).

The second insertion portion (33) has a pair of vertical guide pieces (33a) (33a) and a guide space (34) formed by the guide pieces (33a) (33a) and the guide space. The bottom surface of the (34) is provided with an engaging pin (40). (36) is a leg lid that covers the lower surface of the leg (29).

Reference numeral (43) is a leg fixing fitting housed in the first insertion portion (28) and fixedly arranged between the first insertion portion (28) and the second insertion portion (33). The leg fixing metal fitting is inserted from the insertion holes (31) (31) into the support leg (4a). ), The fixing pieces (44) (44) protruding from the fixing legs (4a) and the bending pieces (45) (4) arranged outside the guide pieces (33a) (33a).
5) and the first engaging with the opening edge of the slotted notch (30)
The protrusions (46) (46) and the second protrusions (47) (47) bent and formed in the opposite direction to the first protrusions (46) (46) are formed. The fixing piece (44) (44) has a long shaft (48) and a screw (4
Shaft holes (50) (50) that are axially supported by the mounting pieces (14f) (14f) via the (9) are bored.

Reference numeral (51) is a lock fitting which is arranged between the leg fixing fitting (43) and the guide space (34) so as to be vertically movable, and which is connected to the button (18) through the long hole notch (30). Locking bent pieces (51a) that are bent to face each other, and a retaining projection (53) that is locked to the lower ends of the second projecting pieces (47) (47) to prevent vertical removal.
(53) and a spring locking piece (54) are formed.
Engagement notches (60) (60) engaged with the engaging pieces (14d) (14d) of the leg mounting bracket (14) on the locking bent piece (51a).
Is formed. A spring (61) for constantly biasing the lock fitting (51) upward is stretched between the spring locking piece (54) and the engagement pin (40). Reference numeral (63) is a bolt for fixing the fixed leg (4a) to the corner fitting (3) through the leg mounting fitting (14). As shown in FIG. 2, the locking means having such a structure is carried out by engaging the engaging pieces (14d) (14d) with the engaging notches (60) (60), and the releasing by folding is performed by a button ( 18) and press the lock fitting (51) downward with the pressing piece (23) to press the engaging piece (14).
d) (14d) and the engagement notches (60) (60) are disengaged. When the support leg (4a) stands up, the side wall of the fixed leg (4a) fits into the step (32h) of the support leg (4b) as shown in Fig. 2, and the outer surfaces of the fixed leg (4a) and the support leg (4b) are aligned. To do.

Further, since the upper part of the support leg (4b) is inserted and engaged with the fixed leg (4a), the degree of reinforcement is improved at the insertion portion, and the engagement piece between the support leg (4b) and the fixed leg (4a) is also provided. (14d) is locked and released by the upper surface of the support leg (4b), so that the user will not accidentally touch and release the lock during normal use. . That is, this part is covered with the table plate (T) and the kotatsu futon (K).

When the support leg (4b) is folded, the curved wall (34) rotates along the rear inner wall of the fixed leg (4a) as shown in FIG. 3, and when folded, the curved wall (32) as shown in FIG. Faces sideways to prevent tatami mats and futons from getting caught.

(G) Effect of the Invention As described above, according to the present invention, the leg mounting member is fixed in the fixed leg fixed to the frame body, the periphery of the leg mounting member is covered with the fixing leg, and the leg is fixed in the supporting leg. Since the metal fitting is fixed and the periphery of the leg fixing metal fitting is covered with the supporting leg, each metal fitting is covered by the fixing leg and the supporting leg, and when the supporting leg is folded and stands, the fingers are attached to the leg mounting metal fitting and the leg fixing metal fitting. It is possible to prevent scratches before being caught between and without the fingers touching the leg mounting bracket or the leg fixing bracket.

Further, since the exposed portions of the respective metal fittings are pivotally supported, the pivotal support portions do not hit the support legs or the fixed legs when the support legs are folded and stand up, so that the pivoting operation is not hindered.

In particular, the insertion part provided on the upper part of the support leg is inserted into and removed from the fixed leg through the opening on the lower surface of the fixed leg, so that the fixed leg and the support leg are naturally shaped when inserting when the support leg is erected. It gives the impression that it is made up of one leg that has been fully integrated and does not have a folding mechanism, and it has a neat appearance and is optimal for so-called furniture-like kotatsu. Further, the opening of the lower surface of the fixed leg not only uses the insertion space of the above-mentioned insertion portion but also mounts the storage space of the leg mounting bracket, and covers the periphery of the leg mounting bracket for a good appearance.

In addition, the leg fixing bracket is fixed to the insertion part of the support leg, and the side wall facing the axis of the insertion part is a curved wall, so even if the support leg is accidentally folded with the finger touching the curved wall, there will be scratches. In addition, the curved wall prevents the tatami mat or the futon from being hung up. Further, the side wall of the fixed leg is fitted into the step of the support leg when standing up, and the outer surfaces of the support leg and the fixed leg are aligned with each other so that the appearance is good.

[Brief description of drawings]

FIG. 1 is a perspective view of the kotatsu of the present invention, FIG. 2 is an enlarged cross-sectional view of an essential part of FIG. 1, FIG. 3 is an operation explanatory view during folding of legs, and FIG. FIG. 5 is a transverse sectional view of FIG. 2, FIG. 6 is an exploded perspective view of essential parts, FIG. 7 is a sectional view of essential parts when a table plate is used, and FIG. 8 is a table plate. Fig. 9 is a cross-sectional view of the main part when the Kotatsu blanket is used, and Fig. 9 is a cross-sectional view of the main part when the engagement piece and the engagement notch are disengaged by pressing the operation button to lower the lock fitting. is there. (1) ... frame body, (2) (2) (2) (2) ... frame tree,
(3) ... Corner bracket, (4) ... Leg body, (4a) ... Fixed leg, (4
b) ... supporting leg, (14) ... leg mounting bracket, (28) ... insertion part (first insertion part, (32) ... curved wall, (43) ... leg fixing bracket,
(48)… Axis (long axis).

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliographic references Sho 54-44703 (JP, Y1) Actual application Sho 57-75334 (Actual development Sho 58-178937) Microfilm (JP, U) of which the contents were photographed Microfilm (JP, U, U) of the specification and drawings attached to the application for actual application No. Sho 49-135813 (Act No. 51-62303) )

Claims (2)

[Claims] 1. A frame body in which a plurality of frame members are combined into a frame shape through a corner fitting, and a leg body fixed to a corner portion of the frame body, wherein the leg body is attached to the corner fitting. A hollow fixed leg that is fixed and has an open lower surface; and a hollow support leg that has an insertion portion provided at an upper portion that is inserted into and removed from the opening of the lower surface of the fixed leg and is foldable through an axis. A leg mounting bracket is fixed in the fixed leg to cover the periphery of the leg mounting bracket with the fixing leg, and the leg fixing bracket is fixed in the supporting leg to support the periphery of the leg fixing bracket. A leg foldable kotatsu, which is covered with legs and pivotally supports a part of the leg mounting bracket exposed from the fixed leg and a part of the leg fixing bracket exposed from the support leg. 2. The leg fixing fitting is fixed to the insertion part of the support leg, and a side wall facing the axis of the insertion part is a curved wall, and a step corresponding to the wall thickness of the side wall of the fixed leg is formed under the curved wall. The leg foldable kotatsu according to claim 1, characterized in that: