JPS634809Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a leg support device for the four corners of a furniture-like kotatsu that has a simple structure, can be easily and firmly assembled, and can be easily stored when not in use.

Conventionally, there was a leg support device of this type as shown in Utility Model Publication No. 59-26093, but this device could be assembled firmly, but when disassembled and stored when not in use, bolts were installed in the legs. Since the bolt was in the way, it was not easy to store it.

The present invention has been devised in view of the above points, and the purpose of the present invention is to be able to assemble it firmly and to facilitate storage when not in use.

This project was made to achieve the above-mentioned purpose, and by embedding a nut above the leg with a square cross section, and screwing a separately provided bolt into this nut, a metal fitting with a U-shaped cross section is attached to the leg. The trapezoidal horizontal part of the upper part of the metal fitting is engaged with the elongated recess provided above the leg so as to be perpendicular to the ridge line,
In addition, the leg is connected to a right angle part that matches the leg of the lower horizontal part, and a locking part that is perpendicular to the ridgeline of the leg is connected to the cutout part parallel to the ridgeline of the leg of the recessed part, and It is fixed to the leg by overlapping the notched step part perpendicular to the cutout part in the lower part, and also fixed to each side plate via each ear part and a receiver.

An embodiment shown in the drawings will be described below. 1
The legs have a rectangular cross section, and a recessed part 5 is formed above the ridgeline 4 of the surfaces 2 and 3 adjacent to each other. This recessed portion has a cutout portion 6 parallel to the axial direction of the leg and a cutout step portion 7 below the cutout portion and perpendicular to the cutout portion. 8 indicates a nut embedded approximately in the center of the cut-out portion. Above the recessed part 5 of the leg, there is an elongated recess 9 perpendicular to the ridgeline. 10,
Reference numeral 11 indicates a side plate having each end surface in contact with both surfaces 2 and 3 of the leg, and reference numerals 12, 13, 14, and 15 indicate screw holes provided in each side plate.

Reference numeral 16 denotes metal fittings for fixing the leg 1 and each side plate 10, 11, and has a U-shaped cross section. That is, a vertical part 17 and a horizontal part 1 spaced apart from each other and perpendicular to this vertical part.
It has 8,19.

The vertical portion 17 has a hole 20 that matches the embedded nut 8, and ear portions 21 and 22 are provided at both ends to protrude in the opposite direction to the horizontal portion and at an obtuse angle with respect to the vertical portion. The side plate 1 is attached to each ear.
It has screw holes 23, 24, 25, 26 that match the screw holes 12, 13, 14, 15 of 0 and 11. 2
7, 28, 29, and 30 are screws that are screwed into each of these screw holes.

Numeral 31 is a bolt that is screwed into the embedded nut 8 through the hole 20 during assembly. 32 and 33 indicate washers.

Said one horizontal part 18 has a trapezoidal shape, the apex 34 of which is perpendicular to the ridge line 4 of the leg and faces said elongated recess 9 of the leg during assembly.

In addition, the other horizontal portion 19 is a side line portion 3 that is orthogonal to each other.
5, 36, and a locking portion 37 that is connected to both side line portions and perpendicular to the ridgeline 4 of the leg.

38 and 39 protrude from both ends of the horizontal portion 19,
This is a receiver that comes into contact with the lower surfaces of the side plates 10 and 11. Reference numerals 40 and 41 indicate screws that are screwed into the lower surface of each side plate through each receiver.

In the illustrated explanation, the leg at only one corner has been explained, but it goes without saying that the other legs have a similar structure.

Since the present invention is constructed as described above, when assembling, the end surfaces of the side plates 10 and 11 are brought into contact with the mutually adjacent surfaces 2 and 3 of the leg 1, and the bolt 31 is passed through the hole 20 of the metal fitting 16 and screwed into the embedded nut 8. At the same time, the supports 38 and 39 support the lower surfaces of both side plates, and the screws 4
Fixed at 0,41. Furthermore, the metal fittings 16 are attached to the sides of both side plates via the ears 21 and 22 using screws 27 to 30.
to be fixed. At this time, the top part 34 of the horizontal part 18 of the metal fitting 16 engages with the elongated recess of the leg 1, and the locking part 37 of the other horizontal part 19 engages with the notch step 7, making the metal fitting even stronger. Attached to the legs.

In this way, the vertical movement of each side plate is prevented by the tightening of the bolts, the engagement between the top of the horizontal part 18 and the recess 9, and the engagement between the locking part 37 of the horizontal part 19 and the notch step part 7, Horizontal movement is prevented by assembling the metal fittings through the respective ears and receivers, and the legs and each side plate are firmly assembled.

In designing, by appropriately selecting the position of the embedded nut 8, that is, the position of the bolt 31, and the height of the side plate, the upper surface of the leg 1 is made slightly higher than the upper surface of the side plate, making it easier to place the top plate (not shown). Of course it is.

As described above, according to the present invention, the legs and the side plate can be easily and firmly assembled using screws or bolts using metal fittings with a simple structure, and when the legs are disassembled and stored when not in use, embedded nuts are embedded in the legs. It also has the advantage of being easier to store since there are no bolts installed like in the conventional case.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of the present device, FIG. 2 is a perspective view after assembly seen from above, and FIG. 3 is a similar perspective view seen from below. 1... Leg, 5... Recessed part, 6... Cut-off part, 7
...Notch step, 8...Nut, 9...Recess, 1
0, 11... Side plate, 16... Metal fitting, 17... Vertical part, 18... Upper horizontal part, 19... Lower horizontal part,
20... Hole, 21, 22... Ear portion, 37... Locking portion, 38, 39... Receptacle.

Claims (1)

[Scope of utility model registration request] At the same time as embedding the nut, a part of the ridge line including this nut part is cut off parallel to the axial direction, and a recessed part having a notched step in a direction perpendicular to the cut part is provided below this cut part, and this recess is The leg has a rectangular cross section with an elongated recess perpendicular to the ridge line above the notch, and a side plate whose end surfaces abut on adjacent surfaces of the leg. a horizontal part, a lower horizontal part, and a vertical part connected to each of these horizontal parts and having ears on both sides that abut the side plates, and a hole in which the nut fits, the upper horizontal part being trapezoidal and the lower horizontal part; consists of a metal fitting having a right-angled part that matches the leg, a receiver at both ends of the right-angled part for receiving each lower surface of the side plate, and a locking part connected to the right-angled part and perpendicular to the ridgeline of the leg, This metal fitting screws the bolt into the nut through the hole in the vertical part, and the trapezoidal part in the upper horizontal part engages with the elongated recess, and the locking part in the lower horizontal part engages with the notch in the recessed part. A leg support device which is fixed to the leg by engaging with the section and to each side plate via each ear and a receiver.