JP2632094B2 - Frame leg device - Google Patents

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 having a leg composed of a fixed leg and a supporting leg rotatably supported by the fixed leg.

[0002]

2. Description of the Related Art As a prior art in which legs are freely foldable, for example, as disclosed in Japanese Utility Model Publication No. 49-33924, the legs are rotatably connected to a horizontal U-shaped frame.
This assembly is fixed to the lower surface of a top plate (not shown). However, after the assembly is fixed to the top plate, the rotating mechanism is exposed, so that the appearance is deteriorated and the assembly is fixed. Since the portion is located inside the lower surface of the top plate, for example, when the top plate has a small area, there is a disadvantage that stability is deteriorated.

[0003] This means that, when all the legs are bent and placed on the floor, the position of the legs in contact with the floor is located further inside the lower surface of the top plate, and is located at the periphery of the top plate. When a person gets in close proximity, the tabletop suddenly rolls over, causing a risk of injury.

[0004]

SUMMARY OF THE INVENTION According to the present invention, when a leg composed of a fixed leg and a supporting leg rotatably provided on the fixed leg is fixed to the frame, the fixed leg is fixed to the frame. And fixed in the space provided between the ends of the frame tree and the space provided between the end of the frame tree and the corner fittings to reduce the exposure of the rotating mechanism of the support legs, Better, and the pivots of the fixed leg and the support leg are positioned below the frame tree constituting the frame body and closest to the frame tree, and the rotation range of the support leg is set large, and the frame body is set in the low position. The purpose is to stably hold the sheet. Especially,
An insertion portion having a curved surface is provided on the upper portion of the support leg, and the insertion portion is inserted along the inside of the housing of the fixed leg when the support leg is standing up, and a finger is inserted between the housing and the insertion portion having the curved surface. It is designed to prevent the danger of getting injured and to improve the appearance.

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

[0006] When the support leg is standing, the insertion portion provided above the support leg is inserted into the inside of 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 gap is provided between corners of a plurality of frame members by corner fittings, and a space is formed between the end portions of the frame members and the corner fittings. A fixed leg having a frame combined with a frame, a step of the case, and a case connected to the step and housing the leg mounting bracket, and a lower surface of the fixed leg, A leg comprising a mounting bracket and a supporting leg rotatably provided by a shaft support, wherein the fixed leg is provided with the step in an empty space, the housing in a gap, and a step. The corner fitting is placed on the corner fitting, and the leg mounting bracket is fixed to the corner fitting.On the other hand, the pivot portion is located at a position above the supporting leg and below the frame tree and closest to the frame tree, The support leg is formed with an insertion portion having a curved surface formed on an upper portion thereof and supported by the leg mounting bracket and inserted along the inside of the housing when standing. And it formed.

The upper surface of the fixed leg is set to be substantially the same height as the upper surface of the frame.

An upper portion of the support leg has an insertion portion having a curved surface which is pivotally supported by the mounting bracket and is inserted along the inside of the casing of the fixed leg. The curved surface is inserted along the inside of the housing.

[0010]

According to the present invention, the fixed leg of the fixed leg and the supporting leg constituting the leg is formed in a gap between the ends of the frame of the frame and between the end of the frame and the corner fitting. By arranging them at the place, only the support legs are vertically suspended below the frame in appearance, and the appearance is improved, and the fixed leg and the support leg of the support leg are arranged at the upper part of the support leg. By being positioned below the frame tree and closest to the frame tree, the range of rotation of the support legs is increased, and the support legs are bent to the horizontal position to stably hold the frame at the lowest position.

In addition, since the upper surface of the fixed leg is set to be substantially the same height as the upper surface of the frame, when the top plate is placed on the upper surface of the frame, the top plate is at least the outermost of the frame. Since it is placed on the upper surface of the fixed leg, even when a person rides on the upper surface of the peripheral edge of the top plate, the frame or the top plate does not roll over.

Further, when the support leg is raised, the curved surface of the upper insertion portion of the support leg is inserted into the inside of the casing of the fixed leg, so that the finger enters between the fixed leg and the support leg and the finger enters. There is no danger of pinching, and even when the support leg is bent, the curved surface of the insertion portion and the housing seem to be connected to each other, so that the sense of unity of the legs is not impaired.

[0013]

(1) Four frames (2) (2) (2)
(2) A frame body formed by combining corner frames (3) via a corner fitting (3), and a gap between adjacent ends (2a) (2b) of the frame (2) (2) (2) (2). (E), and a space (F) is formed between the end of the frame and the corner fitting (3);
The gap (E) and the void (F) are gathered at the corners of the frame to form a mounting space (S) for the fixed legs, which will be described later, and the legs (4), (4) (4) ( 4) (4) is attached. The frame (1) has a bar (5) suspended therefrom, and a heater unit (6) for heating is disposed substantially at the center. A power supply cord (7) is attached to and detached from the heater unit (6). A kotatsu futon (K) or a top plate (T) is attached to and detached from the upper surfaces of the frame (1) and the leg (4). Frames (2) on both sides of the corner fitting (3)
The insertion pieces (3a) and (3a) which are engaged with the grooves (2a) of (2) and are fixed by screws (8) are formed, and long flange pieces (3b) and (3b) are formed vertically. A pair of insertion holes (3c) and (3c) are formed in the lower flange piece (3b), and a screw hole (3d) is formed substantially in the center.

The leg (4) is provided on the lower surface of the fixed leg (4a) with a hollow fixed leg (4a) having an opening on the lower surface so as to be rotatable from the vertical direction to the horizontal direction by a pivot (P). And supporting legs (4b). The fixed legs (4
a) is a pair of steps (10) formed in a housing shape to be accommodated in conformity with the mounting space (S) and on which the flange piece (3b) is placed.
(10), a notch (11) formed between the steps (10) and (10), a rectangular long hole (12) formed on the upper surface, and the screw hole (3d). An insertion hole (13) is formed to form a case (4c) which is located rearward of the steps (10) and (10) and hangs down. (14)
Is a leg mounting bracket fixed to the inner surface wall of the fixed leg (4a), and has a screwing hole (14a) formed at a substantially central portion thereof and opposed to the thick insertion hole (13). Fixed legs (4
Insertion pieces (14b) (14b) are formed to be inserted and engaged in insertion grooves (15) (15) formed on the inner wall of a), and a cutout opening (14c) facing the long hole (12) is formed on the upper surface. A pair of engaging pieces (14d) and (14d) are bent downward to form a flange, and a flange piece (3b) of the corner fitting (3) located at the bent portion (11) is formed at a lower portion. The mounting piece to be mounted (14
e) is formed. A pair of opposed 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 (14e).
The other side of 4e) is formed with engaging claws (14h) (14h) to be inserted and engaged in the insertion holes (3c) (3c).
Reference numeral (18) denotes an unlocking operation button provided in the long hole (12), which is associated with a concave-shaped shaft support portion (20) (20) formed at the rear edge of the lower side on the opening edge of the long hole (12). The locking projections (21) (21) for stopping, the retaining projection pieces (22) (22) for retaining from the elongated hole (12), and the pressing piece (23) formed at the lower front end. Each has formed. The upper surface of the unlocking operation button (18) is lower than the opening of the elongated hole (12), and is slightly less than the upper surface of the fixed leg (4a) so as not to protrude as a whole. I have. (25) is a leaf spring having elasticity, and the fixed leg (4a) is screwed from the lower surface of the button (18) with the screw (26).
The button (18) is always held in a horizontal position.

The support leg (4b) is hollow, and is disposed at the upper portion along the inside of the housing (4c) so as to be rotatable from the lower opening of the fixed leg (4a) and can be inserted and removed. It comprises a first insertion portion (28) and a long leg portion (29) serving as a leg. The first insertion portion (28) has an elongated hole cutout (30) open from the upper surface to the side surface, and has insertion holes (31) and (31) on both sides, and a curved surface (32) on the back surface. Is formed. (33) is a second insertion portion inserted and disposed in the first insertion portion (28), and forms a curved surface (34) substantially similar to the curved surface (32) to form screws (35) (35). With the screw hole (4) of the first insertion portion (28)
1) Screw holes (37) of (41) and second insertion portion (33)
It is fixed via (37). The second insertion portion (33) has a pair of vertical guide pieces (33a) (33).
a) and the guide pieces (33a), (33a) form a guide space (34), and an engagement pin (40) protrudes from the bottom surface of the guide space (34). A foot cover (36) covers the lower surface of the leg (29).

(43) The first insertion part (28) and the second insertion part (28)
A fixing piece (44) (44) projecting into the fixing leg (4a) from the insertion hole (31) (31); Guide piece (33
a) Folded pieces (45) (4) arranged outside (33a)
5), a first protruding piece (46) (46) which is engaged with an opening edge of the long hole cutout (30), and the first protruding piece (46) (4).
The second protruding pieces (47) (4) bent in the direction opposite to the direction (6).
7) is formed. The mounting pieces (14) are fixed to the fixing pieces (44) (44) via a long axis (48) and screws (49).
f) Shaft holes (50) and (50) which are supported by (14f) are formed.

A lock fitting (51) is provided between the leg fixing fitting (43) and the guide space (34) so as to be vertically movable, and is provided with the button through the slot (30). (18) a bent locking bent piece (51a) opposed to (18);
The retaining projections (53) and (53), which are locked to the lower ends of the second protruding pieces (47) and (47) to prevent upward removal, and a spring locking piece (54) are formed. The engaging bent piece (51a) is attached to the engaging piece (1) of the leg mounting bracket (14).
4d) Engaging notches (60) and (6) engaged with (14d)
0). A spring (61) for constantly urging the lock fitting (51) upward is stretched between the spring locking piece (54) and the engaging pin (40).
Reference numeral (63) denotes a bolt for fixing the fixing leg (4a) to the corner fitting (3) via the leg mounting bracket (14).

When the legs (4), (4), (4) and (4) are fixed to the frame (1), the fixing legs (4a) are attached to the mounting space (S) on the frame (1) side. ) And the foot mounting bracket (1)
When the engaging claws (14h) and (14h) of (4) are inserted into the insertion holes (3c) and (3c) of the corner fitting (3) and hooked, the screw holes (14a) of the leg attachment fitting (14) and the corner fitting (14). The screw holes (3d) of 3) are opposed to each other. In this state, the bolt (63) is inserted from the inside of the frame (1) through the screw hole (3d) and inserted into the insertion hole (1).
When screwed into the screw hole (14a) via 3), the upper surface of the fixed leg (4a) becomes substantially the same height as the upper surface of the frame (1). (FIG. 2). When the fixed leg (4a) is fixed to the frame (1) side in this manner, the shaft holes (14g) and (14g) on the fixed leg (4a) side and the shaft holes (5) on the support leg (4b) side.
0) and (50) are supported by the long axis (48) so that the shaft support (P) is positioned below the frame (2) and closest to the frame, so that 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 (3).

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

Further, in the bent state, the curved surface (32) of the first insertion portion (28) is separated from the fixed leg (4a) along the inside of the housing (4c). ) Does not protrude from the lower end of the housing (4c), so that the housing (4c) and the curved surface (32) are almost continuous on the side surfaces, and the gap therebetween is reduced.
(FIG. 4).

When the support leg (4b) stands up, the curved surface (32) of the first insertion portion (28) rotates along the inside of the housing (4c), and the first insertion portion (28) is turned. Enclosure (4
Most parts of the leg mounting bracket (14) and the leg fixing bracket (43) that are inserted inside c) and constitute the shaft support (P) enter the fixing leg (4a).

When the support leg (4b) is standing up, for example, the top plate (T) can be placed directly on the upper surface of the frame body (1) and used as a desk. In this case, 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), so that the top plate (T) does not rattle. (FIG. 7).

When the support leg (4b) is raised, the kotatsu futon (K) is placed on the frame (1), and the top plate (T) is placed on the upper surface thereof to be used as a kotatsu.

[0024]

As described above, according to the present invention, the fixed leg of the fixed leg and the supporting leg constituting the leg is formed by removing the gap between the ends of the frame constituting the frame and the end of the frame. By placing it in the space formed between the corner fitting and the corner fitting, only the support legs appear to be hanging vertically below the frame, and the appearance is improved, and the fixed legs and support legs are improved. By locating the pivot portion at the position above the support leg and below the frame tree and closest to the frame tree, the range of rotation of the support leg is increased, and the support leg is bent to a horizontal position to be bent. Keep your body in the lowest position. Further, the legs are fixed to the outermost sides of the frame, so that the frame can be stably held. Furthermore, the upper portion of the support leg is provided with an insertion portion having a curved surface, and the curved surface is inserted along the inside of the housing of the fixed leg when the support leg is raised. sense of unity and with solid Teiashi and the supporting leg there is no danger of injury containing the finger is not impaired in.

[0025]

[0026]

[Brief description of the drawings]

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

FIG. 2 is an enlarged sectional view of a main part of FIG.

FIG. 3 is an explanatory view of the operation when the leg is being bent.

FIG. 4 is an operation explanatory view when the leg is bent.

FIG. 5 is a cross-sectional view of FIG.

FIG. 6 is a perspective view of an end of a frame 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 and a leg cover in the support leg.

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 leg is standing up.

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

FIG. 12 is a cross-sectional view when releasing the lock of the standing state of the leg.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame body 2 Frame tree 3 Corner fitting 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 (1)

(57) [Claims] 1. A gap between ends of a plurality of frame trees by a corner fitting.
There is a gap, forming a void between the end of the frame and the corner fitting
A frame body that combines the framed by a stepped portion of the case-shaped, Katsuko
And a housing that is provided in series with the stepped portion and houses the leg mounting bracket.
That a lower surface portion of the fixed leg and the fixed leg and a leg that consists of a support leg provided rotatably by said leg mounting bracket and shaft support, the fixed leg cavities with the stepped portion Arranged in
The housing is arranged in the gap and the corner fitting is placed on the step
And fixing the leg mounting bracket to the corner fitting,
Part at the top of the support legs and below the frame
The support leg is located at a position closest to a tree, and the support leg is supported by the leg mounting bracket on the upper portion thereof, and the support leg is positioned inside the casing when standing.
A leg device for a frame body, wherein an insertion portion having a curved surface inserted along is formed.