JPS588970Y2 - Part coupling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a joint device for easily and detachably joining a hollow column member and two horizontal members extending therefrom in a sectional shelf.

Conventionally, in order to removably connect a hollow column member and two horizontal members extending from the column member in an assembled wooden shelf,
This is because the base is fixed at an appropriate height position of the column member using a joint device having a base that fits into the column member, and the horizontal member is connected with a bolt or the like to an arm projecting horizontally from the base. , the base of the joint protrudes in a knot-like manner from the outer peripheral surface of the column, which is unfavorable in terms of design.

In addition, in order to eliminate such knot-like parts, both the upper and lower ends are inserted into a hollow pillar member, the central base is formed to have the same shape as the outer circumference of the mosquito pillar, and the arms are horizontally extended from the central base. A joint device was considered in which the
In this joint device, the length of the column member must be cut to a predetermined height position at which the horizontal member is to be installed, and when making multiple stages, the column is divided by that number to form an integral column member. The rigidity and strength are lower than that of the standard, and the installation is unstable, and in order to arbitrarily change the height position of the horizontal member and even the height position of the shelf board, it is necessary to prepare a large number of column members of different lengths. It had many drawbacks, such as having to do it.

The present invention provides for detachably joining two horizontal members extending perpendicularly to each other and from the same height position to a hollow column member, in which a space between the two horizontal members is provided. A joint piece whose both ends engage with both horizontal members is installed diagonally, and the joint piece is connected to the hollow column member by fastening it with a bolt, and the joint piece is attached to the column member. In addition, by moving the fastening position of the joint piece to the column member, the horizontal member can be attached to a height position, that is, the shelf board can be attached to a freely changed position without having to separate the column member. On the other hand, the cross section of the joint piece is made into a horizontal U-shape, and both ends of the upper surface of the U-shaped cross section are placed on the inner surfaces of both horizontal members, and both ends of the lower surface of the U-shaped cross section are placed on the lower surfaces of both horizontal members. By engaging with each other, the joint strength is improved, and the shelf board can be easily and reliably attached using the joint pieces.

Next, the present invention will be explained with reference to the drawings of the embodiments. Each drawing shows one corner of the sectional shelf, and 1
Reference numeral 5 indicates a hollow column member made of metal and having a flat hexagonal cross section; 5 indicates a pair of horizontal members extending perpendicularly from the same height position to the column member 1; Part 1
, an opening groove 2 is provided along the longitudinal direction of the column member 1 at a side surface located between both horizontal members 5, 5 extending from this, and a side surface of the column member 1 facing the opening groove 2 is provided. Bolt holes 3 are bored at appropriate intervals H in the longitudinal direction.

Both horizontal members 5, 5 are made of metal and have a hollow shape with a rectangular cross section, and an opening groove 6 is formed by cutting out an appropriate dimension at the lower end corner of the upper end along the longitudinal direction.
and a vertical wall surface 7 on the inner corner side where both the horizontal members 5, 5 intersect.
A cutout groove 9 is formed at an appropriate distance a from the end surface 8 of the horizontal member 5 that contacts the wall surface 4 of the column member 1, and a cutout groove 9 is also formed in the bottom wall 10 of the horizontal member 5. 11 is drilled.

12 is a claw 1 to be engaged with the notch grooves 9, 11 of both the horizontal members.
7, 17, 21, 21, and is formed by integrally bending a thin metal plate into a horizontal U-shape in cross section with respect to the column member □. The end surfaces 16.16 of the horizontal member 5.5 that come into contact with the inner vertical wall surfaces 7, 7 and the horizontal claws 17.17 that are inserted into and engaged with the notch grooves 9, 9 of the wall surfaces 7, 7 are connected in a V-shaped manner. Joining part 1B, 1
8 are separated from each other, and both ends of the lower surface 19 of the joint piece 12 are bent vertically upward to form vertical claws 21 and 21.
A horizontal V-shaped engagement portion 20 is cut out to be inserted into and engaged with the notch groove 11 of the cutout groove 11 .

At this time, the upper surface portion 1 formed by bending into the U-shape
5 and the lower surface portion 19 is approximately the same as the height b' of the cross-sectional shape of the horizontal member 5, and the joint piece 12 is placed between both the horizontal members 5, 5. When mounted so that the winter melons 17, 17, 21, 21 in the piece 12 are engaged with the notch grooves 9, 11 in both the horizontal members 5, the upper surface of the joint piece 12 is higher than the upper surface of both the horizontal members 5.5. A corner of a shelf board (not shown) in the shelf is placed on the upper surface of the joint piece 12 so that the height is appropriately lowered.

Further, 22 indicates a fastening means for fastening the joint piece 12 to the column member, and the fastening means 22 includes a first
As shown in FIGS. 4 to 4, it may be constructed of a nut 24 welded to the inside of the joint piece 12 and a bolt 23 inserted from the bolt hole 3 in the column member 1 so as to be screwed into the nand 24. As shown in FIG. 6, a nut body 24 is fitted into the column member 1, and a bolt 23 is inserted through the opening groove 2 from the joint piece 12 side so as to be screwed into the nut body 24. Also good.

According to the above configuration, when assembling the shelf, first, in order to fit the horizontal member 5.5 kJi to the column member 1, the horizontal claw 17 of the joint piece 12 is inserted into the notch groove 9 of the vertical wall surface 7 on the inner corner side of both the horizontal members 5.5. of,
At the same time, the vertical claws 21 are inserted into the notch grooves 11 of the bottom wall 10 using the opening grooves 6 of the horizontal member 5, the end surface 8 of the horizontal member 5 is brought into contact with the side wall 4 of the column member 1, and then the bolt 23 is inserted. Pass through the hole 3 of the column member 1 and insert the nut 24 of the joint piece 12.
When screwed together and fastened so as to attract the joint piece 12 to the column member 1, the horizontal pawl 17 and the vertical pawl 21 of the joint piece 12 press both horizontal members 5 against the side wall 4 of the column member 1, while the joint piece 12
V-shaped groove-shaped engagement portion 1 of horizontal claw 17 and vertical claw 21 that can be pressed
At 8.20, the end face of the notch groove 11 of the bottom wall 10 of the horizontal member 5 and the end of the notch groove 9 of the inner vertical wall surface 7 are fitted into each other, and both the horizontal members 5, 5 move in the vertical and horizontal directions relative to the column member 1. is regulated, and both horizontal members 5, 5 can be joined to the column member 1 without moving in either direction.

Therefore, from now on, by placing the corners of a shelf board (not shown) on the top surface of the joint piece 12, the side surfaces of the shelf board will be placed on both lateral members 5, which are located higher than the top surface of the joint piece 12. , 5, the shelf board is automatically locked in a state where horizontal movement is impossible.

In summary, the present invention provides a prefabricated shelf in which two horizontal members are removably joined to a column member, each extending at right angles to the column member and from the same height position. A joint piece having a fastening means adapted to be fastened to the column member is disposed between both the horizontal members so that its upper surface is horizontal, and the joint piece is arranged horizontally with respect to the column member. It is formed into a U-shaped cross section, and horizontal claws are provided at both ends of the upper surface portion of the U-shaped cross section to engage with notch grooves bored on the opposing inner surfaces of both horizontal members. At both ends of the lower surface part, upward vertical claws that engage with notch grooves formed in the lower surfaces of both the horizontal members are provided, and the upper surface of the joint piece is lowered in height as appropriate to the upper surface of both the horizontal members. The corner of the shelf board of the shelf is placed on the upper surface of the joint piece, and after fitting the claws at both ends of the joint piece into the notch grooves in both horizontal members, the joint piece is placed against the column member. Since the column member and both horizontal members can be removably joined by fastening them together, there are no knots protruding from the column member, and the height position of the shelf board and horizontal members can be adjusted. Changes or increases or decreases in the number of shelves can be made without replacing or cutting the column members by moving the fastening position of the joint piece to the column member in the longitudinal direction of the column member, adding or adding shelf board horizontal members and joint pieces. This can be done very easily by removing it, and since the column member is one piece, the strength of the column is not compromised.

The civil engineering idea was to make the upper surface of the joint piece horizontal and lower than the upper surfaces of both horizontal members, and place the corner of the shelf board on this, so that the shelf board could be placed on the top surface of the joint piece. At the same time, since it is automatically locked in a state where it cannot be moved horizontally, the shelf board can be installed reliably and extremely easily.

However, if the upper surface of the joint piece is made lower than the upper surface of the horizontal member in this way, when the claws at both ends of the joint piece engage with the horizontal member only on the opposing inner surfaces of the horizontal member, the engagement height becomes low. However, in the present invention, the joint piece is formed into a horizontal U-shaped cross section, and the horizontal claws at both ends of the upper surface of the U-shaped cross section are connected to both horizontal members. The upward vertical pawls at both ends of the lower surface of the U-shaped cross section are respectively engaged with the notch grooves on the lower surfaces of both horizontal members, so that the joint piece can be attached to both horizontal members. The height dimension from the point where the horizontal pawl engages to the point where the vertical pawl of the joint piece engages can be increased compared to the case where the vertical pawl engages only with the opposing inner surfaces of both horizontal members. Together with the improvement in rigidity due to the U-shaped cross section, it is possible to significantly improve the joint strength of both horizontal members in the vertical and horizontal directions.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and Fig. 1 is a perspective view showing the shape of each part of the joint device for each member, and Fig. 2 is a perspective view showing a state in which a horizontal member is joined to a column member by the device of the present invention. , FIG. 3 is a plan view of FIG. 2, FIG. 4 is a sectional view taken along the line IV-IV of FIG. 2, FIG. FIG. 3 is a partially cutaway plan view showing an example. 1... Column member, 3... Hole removal, 4, 4... Side wall, 5
, 5... Horizontal member, 7, 7... Inner corner side vertical wall, 9, 9
, 11° 11... Notch groove, 10, 10... Bottom wall,
12...-Joint piece, 17.17...Horizontal claw, 21.2
1... Vertical claw, 18.20... ■-shaped engagement part, 22
... fastening means, 23--bolt, 24... nut.

Claims (1)

[Scope of utility model registration request] In a prefabricated shelf formed by removably joining two horizontal members extending perpendicularly to the pillar member and from the same height position to the pillar member, there is a space between the two horizontal members. A joint piece having a fastening means adapted to be fastened to the column member is disposed so that its upper surface is horizontal,
The joint piece is formed to have a U-shaped cross section facing sideways to the column member, and both ends of the upper surface of the U-shaped cross section are engaged with notch grooves bored in the opposing inner surfaces of both the horizontal members. While providing horizontal claws, upward vertical claws are provided at both ends of the lower surface portion of the U-shaped cross section to engage with notch grooves bored on the lower surface of both the horizontal members,
A joint device for members in an assembled wooden shelf, wherein the top surface of the joint piece is appropriately lower in height than the top surfaces of both horizontal members, and the corner of the shelf board of the shelf is placed on the top surface of the joint piece.