JP3003629U - 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] A mounting portion 50 is provided for mounting the leg body 5 so that the leg body 5 can be vertically extended and horizontally folded. The mounting portion 50 includes a pair of left and right vertical side pieces 11, 11, a vertical back piece 12 interconnecting the rear ends of the side pieces 11, 11 and the upper ends of the side pieces 11, 11. And an upper piece portion 42 provided on the upper end portion of the back piece portion 12. At the inner ends of the side pieces 11, 11 of the mounting portion 50, the vertical connecting pieces 41, 41 fixed to the side edges 35, 35 adjacent to the cutout corner 34 of the kotatsu outer frame K are laterally expanded. Project in an open state.

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-mentioned object, the present invention provides a pair of left and right vertical side pieces and a rear end portion of the side pieces for attaching the leg body so that the leg body can be erected, deployed and horizontally folded. A vertical back piece connected to each other and an upper piece provided on an upper end of the side piece and an upper end of the back piece, and the inner end of the side piece of the mounting portion. The vertical connecting piece fixed to the side edge adjacent to the notched corner of the kotatsu outer frame is provided on the left and right sides in a protruding manner.

In addition, a pair of vertical connecting pieces for connecting the side edges adjacent to each other of the notched corners of the kotatsu outer frame to the fixing member for attaching the leg body are expanded laterally and integrally. In addition, a horizontal support piece portion for receiving the lower surface of the side end portion of the kotatsu outer frame is provided on the lower end edge of the vertical connection piece.

[0008] Furthermore, a mounting portion for mounting the leg body so that it can be vertically deployed and horizontally folded is provided with a pair of left and right vertical side pieces, and a vertical back piece that connects the rear ends of the side pieces to each other. And an upper piece provided on the upper end of the side piece and the upper end of the back piece, and the cutout angle of the kotatsu outer frame is formed on the inner end of the side piece of the mounting portion. Vertical connecting pieces that are fixed to the inner surface of the side edges adjacent to each other are projected in a laterally widened manner, and the side edges of the kotatsu outer frame are provided at the lower end of the vertical connecting pieces. The horizontal support piece that receives the lower surface of the is projected.

[0009]

[Action]

 If the vertical connecting piece is fixed to the side edge portion adjacent to the outer frame, the side edge portions can be connected to each other without using a separate metal fitting, and play can be reduced. Further, in the case of having the horizontal supporting piece portion, the horizontal supporting piece portion receives the lower surface of the adjacent side edge portion of the outer frame, so that the backlash is further reduced.

[0010]

【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 inward of the kotatsu outer frame K, and an upper wall 32 thereof has an insertion hole 31 through which the short tubular body 29 is inserted.

The fixing member 7 includes a mounting portion 50 for mounting the leg body 5 such that the leg body 5 can be erected, expanded and horizontally folded, and a pair of vertical shapes protruding from the inner end portion of the mounting portion 50 in a laterally expanding manner. It is composed of connecting pieces 41, 41 and a pair of left and right cover member mounting piece parts 40, 40 protruding horizontally from the lower end of the mounting part 50. The mounting portion 50 includes a pair of left and right vertical side pieces 11, 11 and a vertical back piece 12 for connecting the rear ends of the side pieces 11, 11 to each other and the side pieces 11, 11. And an upper piece portion 42 provided on the upper end portion of the back piece portion 12. That is, the vertical connecting pieces 41, 41 fixed to the adjacent side end portions 35, 35 of the cutout corner portion 34 of the kotatsu outer frame K are attached to the inner end portions of the side piece portions 11, 11 of the mounting portion 50, respectively. It protrudes in a laterally expanding manner.

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 fasteners 33 such as screws are inserted, at predetermined positions. This connecting piece 41 is fixed to the inner surface of the side edge portions 35, 35 adjacent to the cutout corner portion 34 of the kotatsu outer frame K by a fastener 33, and the side edge portions 35, 35 are mutually fixed by a fixing member 7. Link. 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 therein. 29 can be attached to the upper piece 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 has a hollow inner supporting leg member 8 made of plastic or the like and an inner upper chamber of the covering supporting leg member 8. And a rotating member 9 made of plastic or the like.

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

Further, the rotating member 9 has a pair of left and right flat projecting ridges 18 and 18 on its side surface and a locking projection 21 on its 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 to each other by a fastener 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 and the rear surface 25 of the upper end surface of the covered supporting leg member 8 are locked and projected. Fix it in a sandwiched shape with Article 21.

The lower locking pin 4 is inserted into the vertical grooves 15, 15 of the fixing member 7 and the support holes 19, 19 of the rotating member 9. One end of the elastic members 13, 13 is 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 locking projections of the fixing member 7. It is locked to 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 has a 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, first, as shown in FIG. 7, the leg body 5 is pulled downward as shown by an arrow A against the elastic force of the elastic member 13, 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 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 is performed. 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.

Next, as shown in FIG. 3, horizontal support piece portions 41 a, 41 a for receiving the lower surfaces of the side end portions 35, 35 of the kotatsu outer frame K are attached to the lower end edges of the vertical connection pieces 41, 41. It is also desirable to provide it. That is, the vertical connecting piece 41 fixed to the inner surface of the side piece 11, 11 of the mounting portion 50 and the inner surface of the side edge 35, 35 adjacent to the cutout corner 34 of the kotatsu outer frame K. , 41 projecting in a laterally expanding manner, and at the lower end portion of the vertical connecting pieces 41, 41, a horizontal supporting piece portion 41a for receiving the lower surface of the side end portions 35, 35 of the kotatsu outer frame K. , 41a are projected. In this way, the connection (support) strength between the fixing member 7 and the kotatsu outer frame K can be improved.

A slit or a hole is formed in the kotatsu outer frame K (not shown), and an insertion piece or a protrusion inserted into the slit or the hole is formed in the connecting piece 41 in advance. Is also free. Further, it is also preferable 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 leg, and the folded state of the folded state does not rattle. 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 that 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.

[0033]

[Effect of device]

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

According to the leg support structure for a home kotatsu according to claim 1, the side edges 35, 35 adjacent to each other of the outer frame K are interconnected via the connecting pieces 41, 41 and the mounting portion 50. You can do it and less play will occur. Therefore, the parts such as the corner fittings and the screws for fixing the corner fittings, which have been required in the past, are not required, the number of parts can be reduced, and the external force becomes strong. Further, since the mounting portion 50 opens downward and inward, the leg body 5 should be mounted between the pair of vertical connecting pieces 41, 41 inwardly of the outer frame K so as to be foldable in a storage manner. You can

According to the leg support structure for a home kotatsu according to the second aspect, the play of the side edges 35, 35 adjacent to the outer frame K can be further reduced by the support pieces 41a, 41a. it can. Furthermore, the strength in the connected state can be increased, and the durability is improved.

According to the leg support structure for home diaper according to the third aspect, the same effect as that of the first aspect is obtained, and the supporting piece portions 41a, 41a allow the side adjacent to the outer frame K. The backlash at the ends 35, 35 is further reduced. Further, the strength in the connected state can be increased and the durability is improved.

[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 11 Side piece 12 Back piece 34 Notch corner 35 Side edge 41 Connecting piece 41a Support piece 42 Upper piece 50 Mounting part K Kotatsu outer frame

Claims (3)

[Scope of utility model registration request] 1. A mounting portion 50 for mounting the leg body 5 so that it can be erected vertically and horizontally folded.
11, a vertical back piece 12 for connecting the rear end portions of the side piece portions 11, 11 to each other, and an upper end portion of the side piece portions 11, 11 and an upper end portion of the back piece portion 12 And a mounting part formed from
Vertical connecting pieces 41, 41 fixed to the side edge portions 35, 35 adjacent to the cutout corner portion 34 of the kotatsu outer frame K are laterally opened at the inner end portions of the side piece portions 11, 11 of the 50. Leg support structure for home kotatsu, which is characterized by being projected like a circle. 2. A pair of vertical connecting pieces for connecting adjacent side edges 35, 35 of the cutout corner 34 of the kotatsu outer frame K to each other.
41, 41 are provided on the fixing member 7 for mounting the leg body 5 so as to expand and expand in the left and right directions, and further, the vertical connecting piece 4
At the lower end edges of 1, 41, the side edge portions 35, 3 of the kotatsu outer frame K are provided.
A leg supporting structure for a home kotatsu characterized in that horizontal supporting pieces 41a, 41a for receiving the lower surface of 5 are provided. 3. A pair of left and right vertical side piece parts 11 for attaching the leg body 5 so that the leg body 5 can be erected vertically and horizontally folded.
11, a vertical back piece 12 for connecting the rear end portions of the side piece portions 11, 11 to each other, and an upper end portion of the side piece portions 11, 11 and an upper end portion of the back piece portion 12 And a mounting part formed from
Left and right vertical connecting pieces 41, 41 fixed to the inner surfaces of the side edge portions 35, 35 adjacent to the cutout corner portion 34 of the kotatsu outer frame K are attached to the inner end portions of the side piece portions 11, 11 of the left and right 50. A horizontal support piece portion 41a, 41a, which projects in an expanded shape, and further receives the lower surface of the side end portion 35, 35 of the kotatsu outer frame K at the lower end portion of the vertical connection piece 41, 41.
This is a leg support structure for home kotatsu, which is characterized by being protruded.