JPH0240812Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a leg attachment device applied to a tower kotatsu or the like.

[Technical background of the invention and its problems]

Yagura kotatsu is a kotatsu with a heating element unit attached to the center of the ceiling made of multiple pieces of timber, legs attached to the four corners of the ceiling, and the ceiling supported horizontally through these legs for use. However, in recent years, a heat generating unit has been provided in which the heating element unit is constructed to have a thin shape almost equal to the thickness of the ceiling body and is housed and arranged so as to be embedded in the ceiling body.

In such a tower kotatsu, the heating element unit does not protrude from the plane of the ceiling, so when attaching the legs to the ceiling by mistake, they are attached upside down and the ceiling is supported in an inverted state. This may lead to unexpected dangers such as burns and fire.

[Purpose of invention]

This invention was made with attention to these points, and its purpose is to provide a leg mounting device that can reliably avoid incorrect mounting methods such as mounting the legs upside down. There is a particular thing.

[Summary of the idea]

In other words, in this invention, a leg fixture is provided inside the corner of the ceiling body, a leg is arranged outside the corner, a fastener is provided between the leg fixture and the leg, and the fastener is used to secure the leg. for fixing it to the corner of the ceiling body,
The above-mentioned leg attachment has a U-shaped cross section in which a horizontal piece is integrally connected to the upper and lower edges of a vertical piece, and the above-mentioned fastener A through hole for insertion is formed in the leg, and a fitting portion having a shape corresponding to the cross-sectional shape between the distal ends of the horizontal piece is formed in the leg. are fitted, and in this state, the fastener is connected to the leg fitting and the fitting part of the leg through the through hole, and the length of this fastener is longer than the protruding dimension of the horizontal piece and its protruding dimension is and the depth of the fitting portion.

[Example of idea]

An embodiment of this invention will be described below with reference to FIGS. 1 to 4. In the figure, reference numeral 1 indicates a corner of the ceiling body, and this corner 1 is made up of beams 2, 2 arranged at right angles to each other. And this corner 1
A metal leg fixture 3 is attached to the inside of the above-mentioned beams 2, 2.
This leg mount 3 is provided so as to straddle both of the
Both ends of the rods 2, 2 are connected to each other by screws 4...
is fixed to the side of the This leg fixture 3 is formed into a U-shaped cross section by a vertical piece 5 and horizontal pieces 6 and 7 that are bent at right angles from the upper and lower edges of the vertical piece 5 toward the apex of the corner 1, respectively. Each horizontal piece 6, 7 is cut in a straight line so that its tip side is parallel to the vertical piece 5.

A leg 10 having a substantially square cross section is removably disposed on the outside of the corner 1 so that its two side surfaces abut against the end faces of the timbers 2, 2. A fitting portion 11 having a shape corresponding to the cross-sectional shape between the distal ends of the horizontal pieces 6 and 7 of the leg mount 3 is formed in one corner of the upper end of the leg 10, and this fitting portion 11, the distal ends of the horizontal pieces 6, 7 are fitted, and the inner surface 11a of the fitting portion 11 is in contact with the distal edges of the horizontal pieces 6, 7, respectively.

A through hole 12 is formed in the vertical piece 5 of the leg mount 3, and the through hole 12 is offset from the center position of the vertical piece 5 in either the up or down direction, for example, downward as shown. A threaded tube 13 is embedded in the inner surface 11a of the fitting portion 11, facing the through hole 12. Then, the through hole 12 is opened from the outside of the vertical piece 5.
A bolt 14 as a fastener is passed through the threaded tube 13.
is screwed in, and by tightening this bolt 14, the leg 1
0 is fixed to the corner 1 of the ceiling body. The length of this bolt 14 is longer than the protrusion of the horizontal pieces 6 and 7 and shorter than the sum of the protrusion and the depth of the fitting portion 11.

According to such a configuration, the operator may mistakenly place the leg 10 upside down at the corner 1 of the ceiling body, as shown by the solid line in FIG. Even if this were the case, it would be difficult to fit the horizontal pieces 6 and 7 to the fitting part 11 due to the positional relationship of the through hole 12, and as a result, the leg mount 3 and the threaded tube 13 would be separated by a large distance, and the bolt would pass through the through hole 12. 14 screwed into tube 1
Even if you try to screw it into 3, the tip will be screwed into tube 13.
Therefore, it becomes difficult to attach the leg 10, and the operator notices the mistake. Furthermore, as shown by the chain line in the same figure, when the position of the leg 10 is changed and the horizontal pieces 6 and 7 are arranged so as to fit into the fitting part 11, the position of the screw tube 13 is changed to the position of the through hole 1. Since the bolt 14 is shifted upward, it becomes difficult to screw in the bolt 14, and the user notices the mistake.

Furthermore, since the tips of the horizontal pieces 6 and 7 are cut straight, even if the external dimensions of the leg 10 are changed to larger dimensions as shown by the chain lines in FIG. The inner surface 11a' of the joining part 11' comes into contact with the tip edges of the horizontal pieces 6 and 7 as in the case of the leg 10, and therefore the leg mount 3 has the advantage of being able to be used in common as is. .

Figure 5 shows another embodiment of this invention.
The horizontal piece 7 connected to the lower edge of the vertical piece 5 is cut in the middle to make it shorter, and a step 11b is formed on the lower surface of the fitting part 11 of the leg 10, and the horizontal piece 7 is attached to the step 11b. The tip edge 7a is brought into contact with the tip, and even in such a configuration, the same effects as in the embodiment described above can be achieved.

FIG. 6 shows a further different embodiment, in which a screw shaft 14a is implanted as a fastener on the inner surface 11a of the fitting part 11 of the leg 10, and the tip of the screw shaft 14a is inserted into the through hole of the leg fixture 3. The leg 10 is fixed to the corner 1 of the ceiling by screwing a nut 14b onto the protruding end of the vertical piece 5.

Further, this invention is not limited to being applied to attaching legs to a kotatsu tower, but can be similarly applied to a table, a low table, etc.

[Effect of idea]

As explained above, according to this invention, if you try to attach the legs upside down to the corner of the ceiling body due to a misunderstanding, it will be difficult to do so, and you will realize the mistake, so you will always be able to properly install the legs. This provides the effect that the ceiling body will not be erroneously supported in an inverted state.

[Brief explanation of drawings]

Fig. 1 is a plan view showing an embodiment of this invention, Fig. 2 is a front view thereof, Fig. 3 is a sectional view taken along the - line in Fig. 1, and Fig. 4 explains the operation of the embodiment. FIG. 5 is a cross-sectional view showing another embodiment, and FIG. 6 is a cross-sectional view showing another still different embodiment. 1... corner of ceiling body, 3... leg mount, 5...
Vertical piece, 6, 7... Horizontal piece, 10... Leg, 11...
...Fitting portion, 12...Through hole, 14...Bolt (fastener), 14a...Screw shaft (fastener).

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A leg fixture is provided inside the corner of the ceiling body, a leg is arranged outside the corner, and a fastener is provided between the leg fixture and the leg, In this fixture, which fixes the leg to the corner of the ceiling body, the leg fixture has a U-shaped cross section in which the horizontal piece is integrally connected to the upper and lower edges of the vertical piece. A through hole for inserting the fastener is formed offset upward or downward from the center position, and a fitting hole having a shape corresponding to the cross-sectional shape between the distal end sides of the horizontal piece is formed in the leg. A notch is formed in the fitting part, and both of the distal ends of the horizontal piece fit into this fitting part, and in this state, the fastener connects to the leg fitting and the fitting part of the leg through the through hole, and the fastener is connected to the leg fitting part and the leg fitting part through the through hole. A leg mounting device characterized in that the length of the attachment is longer than the protrusion dimension of the horizontal piece and shorter than the sum of the protrusion dimension and the depth of the fitting part. (2) Claim 1 of the utility model registration characterized in that the tip of the horizontal piece is a straight line parallel to the vertical piece.
Leg attachment device as described in section.