JPH05215344A - Leg device of frame - Google Patents

Abstract

PURPOSE:To reduce an exposure of a rotating mechanism for each of supporting legs and hold in frame at its lower position by a method wherein a fixed leg is arranged in a fixing space defined by an end part of a frame member and a corner fitting and then fixed to the corner fitting and a pivoting part is located below the frame member. CONSTITUTION:In the case that a leg member 4 is fixed to a frame member 1, a fixed leg 4a is stored within a fixing space at a frame member 1, an engaging claw of the leg fixing fitting 14 is inserted into and engaged with the insertion hole of the corner fitting 3. With such an arrangement, it is possible to make the upper surface of the fixing leg at the substantial same height as that of the upper surface of the frame member. Height sizes of the frame member 2 and the corner fitting 3 are adjusted in such a way that the pivot part P is located at the nearest position to the frame member below the frame member 2. With such an arrangement, many surfaces of the inner walls of the supporting legs are contacted with the lower surface of the frame member.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leg device for a frame body having a leg body composed of a fixed leg and a support leg rotatably supported on the fixed leg.

[0002]

2. Description of the Related Art As a prior art in which legs can be folded, for example, as disclosed in Japanese Utility Model Publication No. 49-33924, the legs are rotatably connected to a horizontal U-shaped frame.
Although this assembly is fixed to the lower surface of the top plate (not shown), after the fixing to the top plate, the above-mentioned rotation mechanism is exposed, so that the appearance is bad and the assembly is fixed. Since the portion is located inside the lower surface of the top plate, there is a drawback that stability is deteriorated in the case where the top plate has a small area, for example.

[0003] This means that when all the legs are bent and placed on the floor, the position of the legs contacting the floor is located further inside the lower surface of the top plate. When a person gets near, the top plate suddenly rolls over, causing injury.

[0004]

SUMMARY OF THE INVENTION According to the present invention, when a leg body composed of a fixed leg and a support leg rotatably provided on the fixed leg is fixed to a frame, the fixed leg is provided on the corner of the frame side. It is arranged in the mounting space provided in the section to reduce the exposure of the rotation mechanism of the support leg to improve the appearance and to position the fixed leg and the pivotal support section of the support leg below the frame tree forming the frame body. The purpose of this is to set the rotation range of the support legs to be large and to stably hold the frame body at a low position.

Further, the top plate or the like is placed on the upper surface of the fixed leg located at the outermost corner of the frame to directly transfer the load applied to the top plate to the leg.

When the support leg is erected, the insertion portion provided on the upper portion of the support leg is inserted inside the fixed leg so that the sense of unity with the fixed leg is not impaired even when the support leg is bent. ..

[0007]

According to the present invention, a frame body in which a plurality of frame members are combined into a frame shape through corner fittings, a fixed leg having leg mounting fittings, and a lower surface portion of the fixed leg have the above-mentioned structure. A leg body composed of a leg mounting bracket and a supporting leg rotatably provided by a shaft supporting section, wherein the fixed leg is disposed in a mounting space formed by an end of the frame and a corner bracket. It is configured to be fixed to the corner fitting and the shaft support portion to be positioned below the frame.

Further, the upper surface of the fixed leg is set to have substantially the same height as the upper surface of the frame body.

An upper portion of the support leg is provided with an insertion portion pivotally supported by the leg mounting member, and the insertion portion is inserted inside the fixed leg when the support leg is erected.

[0010]

With the fixed leg constituting the leg and the fixed leg among the support legs arranged in the mounting space formed by the end of the frame tree constituting the frame and the corner fitting, the appearance is improved. Since only the supporting legs are hung vertically below the frame, the appearance is improved and the rotation range of the supporting legs is increased by locating the fixed legs and the pivotal support of the supporting legs below the frame tree. Bend the support legs to a horizontal position to hold the frame stably at the lowest position.

Further, since the upper surface of the fixed leg is set at substantially the same height as the upper surface of the frame body, when the top board is placed on the upper surface of the frame body, the top board is at least the outermost side of the frame body. Since it is placed on the upper surface of the fixed leg, even if a person rides on the peripheral upper surface of the top plate, the frame and the top plate do not roll over.

Further, since the insertion portion at the upper part of the support leg is inserted into the inside of the fixed leg when the support leg is erected, there is no risk of a finger getting caught between the fixed leg and the support leg and pinching the finger. Even when the support leg is bent, the insertion part and the fixed part appear to be connected to each other, and the leg is not impaired.

[0013]

[Example] (1) is four frames (2) (2) (2)
A frame body in which (2) is combined in a frame shape through a corner metal fitting (3), and between the adjacent end portions (2a) (2b) and corners of the frame (2) (2) (2) (2) The fitting space (S) is formed at the corner of the frame by the metal fitting (3), and the legs (4), (4), (4) and (4) are attached to the corner. A crosspiece (5) is suspended on the frame body (1), and a heater unit (6) for heating is arranged substantially at the center. A cord (7) for supplying power is attached to and detached from the heater unit (6). Further, the kotatsu blanket (K) or the top plate (T) is attached to and detached from the upper surfaces of the frame body (1) and the leg body (4). Both sides of the corner metal fitting (3) engage with the groove (2a) of the frame (2) (2) and are fixed by the screw (8).
a) (3a) is formed, and an elongated flange piece (3b) is formed vertically.
(3b) is formed, and a pair of insertion holes (3c) (3c) is formed in the lower flange piece (3b), and a screw hole (3d) is formed substantially in the center.

The leg (4) is provided with a hollow fixed leg (4a) having an opening on the lower surface, and a pivotal support (P) on the lower surface of the fixed leg (4a) so as to be rotatable from the vertical direction to the horizontal direction. And a supporting leg (4b). The fixed leg (4
a) is a pair of stepped portions (10) on which the brim piece (3b) is placed, which is formed in a box shape so as to be accommodated in the mounting space (S).
(10), a notch (11) formed between the step (10) and (10), a rectangular elongated hole (12) formed on the upper surface, and the screw hole (3d) Forming a facing insertion hole (13). (14) is the fixed leg (4
The leg mounting metal fitting fixed to the inner wall of a) is a screw hole (14) facing the insertion hole (13) having a thick wall at a substantially central portion.
a) is formed, and on both side walls, insert pieces (14b) (14b) that are inserted and engaged with the insert grooves (15) (15) formed on the inner wall of the fixed leg (4a) are formed, and the upper surface is formed with Long hole (1
2) a pair of engaging pieces (14d) (14d) are bent downward to form a notch opening (14c) facing each other, and the corner fitting is located at the lower part of the notch (11). (3)
The mounting piece (14e) for mounting the collar piece (3b) is formed. A pair of opposing mounting pieces (14f) (14f) are formed on both sides of the mounting piece (14e), and a shaft hole (14g) is formed in the mounting piece (14f). Engaging claws (14h) (14h) that are inserted and engaged in the insertion holes (3c) (3c) are formed. Reference numeral (18) is an unlocking operation button provided in the elongated hole (12), which engages with a recessed shaft support (20) (20) formed at the opening edge of the elongated hole (12) at the rear ends of the lower both sides. Locking protrusions (21) (2)
1), a retaining piece (22) (22) for retaining from the elongated hole (12), and a pressing piece (23) formed at the lower front end, 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 a leaf spring having elasticity, which is fixed from the lower surface of the button (18) to the upper inner surface of the fixed leg (4a) with a screw (26) so as to always hold the button (18) in a horizontal position. ing.

The support leg (4b) has a hollow shape, and the upper part includes a first insertion part (28) which is disposed inside the fixed leg (4a) so as to be rotatable and inserted from the lower opening. It is composed of a long leg portion (29) which becomes a leg. The long hole notch (3) extends from the upper surface to the side surface of the first insertion portion (28).
0) is opened, insertion holes (31) (31) are formed on both sides, and a curved surface (32) is formed. Reference numeral (33) is a second insertion portion that is inserted and arranged in the first insertion portion (28), and forms a curved surface (34) that is substantially similar to the curved surface (32) and screws (35) (35). Then, it is fixed through the screw holes (41) (41) of the first insertion part (28) and the screw holes (37) (37) of the second insertion part (33). And this second
The insertion part (33) has a pair of vertical guide pieces (33a).
A guide space (34) formed by (33a) and the guide pieces (33a) (33a) is formed, and the guide space (3) is formed.
An engaging pin (40) is provided on the bottom surface of 4).
(36) is a leg lid that covers the lower surface of the leg (29).

(43) is the first insertion portion (28) and the second
Leg fixing fittings arranged between the insertion part (33) and the fixing pieces (44) (44) protruding from the insertion holes (31) (31) into the fixing leg (4a); Guide piece (33
a) bent pieces (45) (4) arranged outside (33a)
5), the first protrusions (46) (46) locked to the opening edge of the slotted notch (30), and the first protrusions (46) (4).
The second projecting piece (47) (4) bent in the opposite direction to 6)
7) is formed. The fixing piece (44) (44) is attached to the mounting piece (14) via a long shaft (48) and a screw (49).
The shaft holes (50) and (50) pivotally supported by (f) and (14f) 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 movable up and down, and the button is inserted through the long hole notch (30). A bent folding piece (51a) facing (18),
The second protrusions (47), (47) are formed with retaining protrusions (53), (53) that are retained by the lower ends of the second protrusions (47) (47) to prevent upward disengagement, and spring retaining pieces (54). The engaging bent piece (51a) includes the engaging piece (1) of the leg mounting bracket (14).
4d) (14d) engaging notches (60) (6
0) is formed. A spring (61) for constantly urging 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 metal fitting (3) through the leg mounting metal fitting (14).

Thus, when the legs (4), (4), (4) and (4) are fixed to the frame (1), the fixing leg (4a) is attached to the frame (1) side mounting space (S). ) Stored in the leg mounting bracket (1
When the engaging claws (14h) (14h) of 4) are inserted and locked in the insertion holes (3c) (3c) of the corner fitting (3), the screw holes (14a) of the leg mounting fittings (14) and the corner fittings (14a). The screw holes (3d) of 3) face each other. In this state, the bolt (63) is inserted into the screw hole (3d) from the inside of the frame body (1), and the insertion hole (1
When screwed and fixed to the screw hole (14a) via 3), the upper surface of the fixed leg (4a) becomes substantially flush with the upper surface of the frame body (1). (Figure 2). Further, in the state where the fixed leg (4a) is fixed to the frame body (1) side in this manner, the fixed leg (4a) side shaft hole (14g) (14g) and the support leg (4b) side shaft hole (5
0) and (50) are rotatably supported by the long axis (48) so that the pivot support (P) is located below the frame (2) and closest to the frame (2) and the corner fittings. The distance between the screw hole (14a) and the shaft hole (14g) is set in consideration of the height dimension of (3).

In the folding operation of the support leg (4b) having such a structure, the operation button (18) is pressed from above, and the lock fitting (51) is pushed down by the pressing piece (23), so that the engaging piece (14d). (14d) is disengaged from the engagement notches (60) (60), and the support leg (4b) is bent inward.
(Figure 3). At this time, since the shaft support portion (P) is located below the frame body (1), many surfaces of the inner surface wall (4b-1) of the support leg are in contact with the lower surface of the frame tree (2). (Fig. 4).

Further, in this bent state, the side surfaces of the first inserting portion (28) and the fixed leg (4a) are substantially connected to each other, and the gap therebetween is also small. (Fig. 4).

Then, when the support leg (4b) is erected, the first insertion portion (28) is inserted inside the fixed leg (4a), and the leg mounting member (14) constituting the shaft support (P) and the leg. Most of the fixing metal fittings (43) will slip into the fixing legs (4a).

When the support legs (4b) are erected, for example, the top plate (T) can be placed directly on the upper surface of the frame body (1) and used as a table. In this case, since at least the outermost surface of the lower surface of the top plate (T) is placed on the upper surface of the fixed leg (4a), the top plate (T) does not rattle. (Fig. 7).

Further, when the support leg (4b) is erected, the kotatsu futon (K) is put on the frame body (1) and the top plate (T) is placed on the upper surface thereof to be used as kotatsu.

[0024]

As described above, according to the present invention, the fixed leg of the leg and the fixed leg of the support legs are attached to each other by the mounting space formed by the end of the frame tree and the corner metal fitting constituting the frame. Since it seems that only the support legs are hung vertically below the frame, the appearance is improved and the legs are fixed to the outermost part of the frame to stabilize the frame. Can be held. Further, by locating the pivotal support portion below the frame tree, the rotation range of the support leg is increased and the support leg can be brought into contact with the frame tree. Therefore, when the support leg is bent and the frame body is lowered to be used. Also in the above, the load of the frame body can be directly transmitted to the support legs, and the strength of the entire frame body can be increased.

Further, since the upper surface of the fixed leg is set at substantially the same height as the upper surface of the frame body, when a top plate or the like is placed on the upper surface of the frame body, the outermost part of the top plate is set by the leg body. It will be supported, and the top plate and frame will not roll over even when a person rides on the outer edge of the top plate.

Furthermore, since the support leg has an insertion portion on the upper side and the insertion portion is inserted inside the fixed leg when standing up, when the support leg is bent, a finger may enter between the fixed leg and the support leg, resulting in an injury. There is no danger of doing so and the sense of unity between the fixed leg and the support leg is not impaired.

[Brief description of drawings]

FIG. 1 is a perspective view of a kotatsu mounted with a frame leg device of the present invention.

2 is an enlarged cross-sectional view of the main part of FIG.

FIG. 3 is an explanatory view of an operation in the middle of bending the leg.

FIG. 4 is an operation explanatory diagram when the legs are similarly bent.

5 is a cross-sectional view of FIG.

FIG. 6 is a perspective view of an end portion of a frame tree and a corner fitting.

FIG. 7 is an exploded perspective view mainly of an upper portion of a support leg.

FIG. 8 is a perspective view of a second insertion portion in the support leg and a leg lid.

FIG. 9 is an exploded perspective view of a fixed leg.

FIG. 10 is a partial cross-sectional view in which a top plate is placed when the legs are erected.

FIG. 11 is a partial cross-sectional view in which a kotatsu blanket and a top plate are placed when the legs are standing.

FIG. 12 is a cross-sectional view when unlocking the standing state of the legs.

[Explanation of symbols]

 1 frame 2 frame 3 corner metal fittings 4 leg 4a fixed leg 4b support leg 14 leg mounting bracket 28 insertion part (first insertion part) S mounting space P shaft support

Claims (3)

[Claims] 1. A frame body in which a plurality of framing members are combined in a frame shape through corner fittings, a fixed leg having leg mounting fittings, and a lower surface of the fixed leg which is rotated by the leg mounting fittings and a shaft support portion. A fixed leg and a fixed leg, the fixed leg is disposed in a mounting space formed by an end of the frame and a corner fitting, and is fixed to the corner fitting. A leg device for a frame body, characterized in that a shaft support portion is located below the frame tree. 2. The leg device for a frame body according to claim 1, wherein an upper surface of the fixed leg is set at substantially the same height as an upper surface of the frame body. 3. The upper portion of the support leg has an insertion portion pivotally supported by the leg mounting member, and the insertion portion is inserted inside the fixed leg when the support leg is erected. 1
The leg device of the frame body described in.