JPH0664010U - Home kotatsu leg support structure - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a leg support structure for a home kotatsu, which has a small number of parts and has little play. [Structure] Side edge of the kotatsu outer frame K adjacent to the cut corner 34
35, a pair of vertical connecting pieces 41 for connecting 35 to each other,
41 is provided on the fixing member 7 for mounting the leg body 5 so as to be expanded and integrated in the left and right directions. The leg 1 is foldable or extendable.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a leg support structure for a home kotatsu.

[0002]

[Prior art]

 Conventionally, as shown in FIG. 10, in order to support a leg root portion c and a leg body d which are foldably connected to a kotatsu outer frame b having a notched corner portion a, the following is done. It was

That is, plate-shaped corner fittings f are fixed to the inner surfaces of the side edges e, e adjacent to the notched corner a with screws g, g, and both side edges e, e are connected to each other. At the same time, the fixing member h of the leg root c is connected and fixed to the corner fitting f by the bolt i.

[0004]

[Problems to be solved by the device]

 Therefore, in addition to the leg base c and the leg main body d, the corner metal fittings f, the bolts i, and the like must be used as separate parts, and there is a problem that the number of parts increases. In addition, since it is fixed via the corner metal fittings f, there is a problem that backlash easily occurs.

Therefore, an object of the present invention is to solve the above-mentioned conventional problems, and to provide a leg supporting structure for a home kotatsu which has a small number of parts and has a small backlash.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a pair of vertical connecting pieces for connecting adjacent side edges of a notched corner portion of a kotatsu outer frame to a fixing member for attaching a leg body. The left and right projections are integrally formed so as to spread out.

[0007]

[Action]

 Since the main body is attached by connecting the connecting piece integrally projecting to the fixing member to the side end of the kotatsu outer frame, the number of parts can be reduced and backlash can be prevented.

[0008]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the drawings illustrating an embodiment.

FIG. 1 illustrates a leg 1 for a home kotatsu in which the leg support structure of the present invention is used. The leg 1 includes a leg root portion 2 connected to a kotatsu outer frame K, and the leg root portion. 2 and a leg body 5 foldably connected to each other via a pair of upper and lower locking pins 3 and 4.

As shown in FIGS. 1 to 4, the leg base portion 2 includes a cover member 6 made of plastic or the like and a fixing member 7 made of metal or the like for attaching the leg body 5.

The cover member 6 is opened downward and forward, and an upper wall portion 32 thereof has an insertion hole 31 through which the short tubular body 29 is inserted.

The fixing member 7 includes a pair of left and right vertical side pieces 11, 11 and a pair of left and right mounting pieces 40, 40 horizontally projecting from lower ends of the side pieces 11, 11. A pair of vertical connecting pieces 41, 41 projecting from the front ends of the pieces 11, 11 in a left-right expanded manner and a vertical back piece 12 connecting the rear ends of the side pieces 11, 11. And an upper piece portion 42 provided on the upper end portions of the side piece portions 11 and 11 and the upper end portion of the back piece portion 12.

The fixing member 7 is integrally formed, for example, by punching and bending a metal plate, and the attaching piece 40 is attached to the attaching rib 39 formed on the inner surface of the cover member 6. It is fixed with a screw or the like through the hole 44.

The connecting piece 41 has a plurality of mounting holes 43 ... Through which the fixing members 33 such as screws are inserted, at predetermined positions.

The connecting piece 41 is fixed to the inner surface of the side end portions 35, 35 adjacent to the cutout corner portion 34 of the kotatsu outer frame K by a fixing tool 33, and the fixing member 7 fixes the side end portions 35, 35. Are interconnected with each other.

Further, a pair of left and right locking projections 14, 14 are horizontally projected on the upper piece portion 42, and a screw hole 45 is formed, and a screw 36 is screwed into the screw hole 45. The short tubular body 29 can be attached to the upper piece portion 42.

The side plate portion 11 is provided with a vertical groove 15 for holding the leg upright, and a horizontal groove 16 for leg bending guide having one end 22 communicating with the vertical groove 15.

The vertical groove 15 is formed vertically with a predetermined length, and the horizontal groove 16 is formed horizontally with a predetermined length from a position lower than the upper end 23 of the vertical groove 15 by a predetermined position.

The lower end portion 15b of the vertical groove 15 is set wider than the upper end portion 15a thereof, and the horizontal groove 16 is set to have substantially the same width dimension as the upper end portion 15a of the vertical groove 15. . Further, the outer diameter dimension of the lower locking pin 4 is set to be larger than the groove widths of the upper end portion 15a of the vertical groove 15 and the horizontal groove 16.

Next, as shown in FIGS. 2, 5 and 6, the leg body 5 includes a hollow covering support leg member 8 made of plastic or the like and an upper end empty chamber portion of the covering support leg member 8. And a rotating member 9 made of plastic or the like.

The upper end of the covered leg member 8 is formed in an arc shape having a predetermined curvature when viewed from the side so that it can swing inside the fixing member 7.

Further, at the upper end of the coated supporting leg member 8, holding holes 10, 10 for inserting and holding the upper locking pin 3 are formed at predetermined positions.

Further, the rotating member 9 has a pair of left and right flat projecting ridges 18, 18 on the side surface and a locking projection 21 on the upper end, and the projecting ridge 18 has a lower locking pin. A support hole 19 through which the 4 is inserted and supported is formed.

Thus, the upper part of the covered supporting leg member 8 is slidably fitted between the side pieces 11, 11 of the fixing member 7, and the upper locking pin 3 is provided in the vertical groove 15 of the fixing member 7. , 15 and the holding holes 10, 10 of the covered leg member 8.

The rotating member 9 is fitted in the coated supporting leg member 8, and the upper flat portion 27 of the rotating member 9 and the back flat portion 28 of the covering support leg member 8 are fixed by a fixing tool 26 such as a screw. It

At this time, the locking projection 21 of the rotating member 9 is locked in the holding groove 20 of the upper locking pin 3, and the upper locking pin 3 is engaged with the back surface 25 of the upper end surface of the coated supporting leg member 8. It is fixed in a sandwiched manner with the stop ridges 21.

The lower locking pin 4 is inserted into the vertical grooves 15 and 15 of the fixing member 7 and the support holes 19 and 19 of the rotating member 9.

One ends of the elastic members 13, 13 are locked to the circumferential grooves 17, 17 formed at both ends of the lower locking pin 4, and the other ends of the elastic members 13, 13 are engaged with the fixing member 7. It is locked to the stop projections 14, 14.

When the leg body 5 is in the upright state as shown in FIG. 1, the upper locking pin 3 is pulled up by the elastic force of the elastic member 13 via the lower locking pin 4, and the upper locking pin 3 is in the vertical groove. The lower locking pin 4 is locked at the upper end 23 of 15 and is locked in the middle of the lower end 15b of the vertical groove 15, so that the main body 5 maintains this state without swinging.

In order to bend the leg body 5 in the upright holding state, as shown in FIG. 7, first, the leg body 5 is pulled downward against the elastic force of the elastic member 13 as indicated by the arrow A, and is vertically moved. The locking pins 3 and 4 are moved downward along the vertical groove 15, and the upper locking pin 3 is brought to one end 22 of the horizontal grooves 16 and 16.

Next, as shown by the arrow B, if the leg body 5 is slightly swung about the lower locking pin 4, the upper locking pin 3 enters the horizontal groove 16 from the vertical groove 15. As shown in FIG. 8, the lower locking pin 4 is guided in the horizontal groove 16 and moves to the other end 24 side, and at the same time, the lower locking pin 4 moves in the vertical groove 15 to the upper end 23 side.

Further, when the leg body 5 is swung, as shown in FIG. 9, the lower locking pin 4 is locked at the corners 30, 30 where the horizontal groove 16 and the vertical groove 15 intersect, and the upper locking pin 4 is locked. The pin 3 is also locked at the other end 24 of the horizontal groove 16 so that the leg body 5 is held and the pin 3 is folded.

In order to change the leg body 5 from the folded state to the upright state, the leg body 5 is swung in the direction of arrow C in FIG. 9, and the lower locking pin is moved as shown in FIGS. 8 and 7. 4 is moved downward in the vertical groove 15 and the upper locking pin 3 is inserted into the vertical groove 15 from the horizontal groove 16, the elastic force of the elastic member 13 causes the lower locking pin 4 to move. The upper locking pin 3 moves upward in the vertical groove 15 via the upper locking pin 3 and locks on the upper end 23 to be in the state shown in FIG.

Of course, the present invention is not limited to the above-described embodiment, and for example, as shown in phantom in FIG. 3, the lower end edge of the connecting piece 41a is bent outward to form a horizontal shape. It is also desirable to integrally form the bent piece portion 41a at the lower end of the to improve the connection (support) strength with the kotatsu outer frame K. Alternatively, although not shown, a slit or a hole may be formed in the kotatsu outer frame K, and an insertion piece or a protrusion inserted into the slit or the hole may be formed in the connection piece 41. Is. Further, it is also desirable that the connecting piece 41 has a U-shaped cross section and surrounds (externally fits) the side end portion 35 so as to be more firmly fixed to the side end portion 35.

Further, as shown in FIG. 9, the lower surface 5a of the leg body 5 is flush with the lower surface of the cover 6 and the outer frame K in the folded state of the legs, so that the folded state does not rattle in the folded state. It has the advantage that it can be placed on the floor. In the present invention, the folding mechanism can be freely changed in design other than the illustrated embodiment. In short, the notch corner portion of the kotatsu outer frame K is provided with the fixing member 7 which is one component of the leg 1. It is sufficient to connect the 34 and omit the conventional corner metal fitting f shown in FIG.

Further, the leg 1 may be wholly or partially expandable and contractable, and in this case, the notch corner portion 34 of the kotatsu outer frame K is connected by the fixing member 7 on the upper portion of the leg 1. It may be configured to do.

[0037]

[Effect of device]

 Since the present invention is constructed as described above, it has a great effect as described below.

Since the connecting pieces 41, 41 projecting integrally with the fixing member 7 are directly connected to the side end portions 35, 35 of the kotatsu outer frame K, the corner metal fittings and the corner metal fittings conventionally required. Parts such as screws to stop the operation are not required, and the number of parts can be reduced, and the support structure is strong against external force and less likely to cause rattling.

[Brief description of drawings]

FIG. 1 is a sectional side view of an essential part showing an embodiment of the present invention.

FIG. 2 is a sectional front view of a main part.

FIG. 3 is an exploded perspective view.

FIG. 4 is an exploded perspective view of a main part.

FIG. 5 is an exploded perspective view of a leg body.

FIG. 6 is a sectional side view of a main part.

FIG. 7 is an explanatory diagram of use.

FIG. 8 is an explanatory diagram of use.

FIG. 9 is an explanatory diagram of use.

FIG. 10 is a plan view showing a conventional example.

[Explanation of symbols]

 5 Leg body 7 Fixing member 34 Notch corner 35 Side edge 41 Connecting piece K Kotatsu outer frame

Claims (1)

[Scope of utility model registration request] 1. A pair of vertical connecting pieces for connecting adjacent side edges 35, 35 of a notched corner 34 of a kotatsu outer frame K to each other.
A leg supporting structure for a home kotatsu, characterized in that 41, 41 are provided on a fixing member 7 for mounting the leg body 5 so as to be expanded left and right integrally.