JPS5934727Y2 - Strut joint device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a joint device for a support column used in a metal assembly shelf or the like.

It is well known that locking grooves are bored at appropriate pitches along the length of a metal support, and a shelf is supported through brackets in the locking grooves. Normally, these types of supports are available in various lengths, long and short, and are selected appropriately depending on the application. When this is required, it must be packed and transported in a long form, which is inconvenient to handle.

In addition, when joining short columns together, a method is used to attach a support plate to the joint and use the locking slot to connect the columns with bolts, but this method requires fasteners and parts. This requires a lot of effort to attach and detach, and the heads of the bolts protrude from the outer surface of the support, impairing display functions.

The present invention solves the above-mentioned conventional problems by making it possible to connect columns extremely easily, firmly, and beautifully without the need for any tools by using locking grooves drilled in the columns. The gist of this is that cross-cutting struts consisting of mutually orthogonal side plates are arranged in a straight line, and each side plate of the two struts has a concave groove that protrudes from the back side of the strut. In addition to forming a recess along the direction, an inverted-shaped locking slot is bored in the recess groove, and a joint body consisting of mutually orthogonal side pieces is installed on the back surface of the joint of both struts. By engaging the upper and lower pairs of clamping claws and protrusions provided on each side of the joint body with the locking slots of each side plate, the side pieces can be moved in the thickness direction. At the same time as the sandwiching, a flange portion protruding toward the side plates is formed on the outer edge of each side piece, and this is brought into contact with the outer surface of the side wall of the concave groove portion of each side plate, so that the side piece and both side plates are aligned in the width direction. The reason is that it is also held in place.

Next, the present invention will be explained with reference to the drawings. 1.1 denotes side plates 2, 2.2' which are perpendicular to each other.

Each side plate 2, 2.2, 2' has a concave groove part 8, 8' projecting toward the back side of each column 1, 1. The recessed grooves 8, 8.8', 8' are provided with longitudinal grooves 4, 4.4' with their lower portions sandwiched in between.

Inverted-shaped locking slots 3, 3.3', 3 formed in 4'.
' along the longitudinal direction of the pillar at an appropriate pitch P 3
5 is a joint body attached to the inner surface of the joint of both branches 1 and 1';
The side pieces 9, 9 having an appropriate plate thickness t' are orthogonal to each other to form a cross-sectional shape similar to a support column, and the respective locking groove holes 3, 3' are provided in the side pieces 9, 9. A clamping claw 6 that can be freely inserted into the upper wide part and irremovably engages with the longitudinal grooves 4, 4'; A pair of upper and lower protrusions 7 that abut and engage with the periphery are respectively provided.

Each of the clamping claws 6 is formed by cutting and raising a predetermined portion of each side piece 9, 9 outward, and at this time, the raised portion of the clamping claw 6 is aligned along the longitudinal direction of the pillars 1, 1'. It is erected perpendicularly to the outer surface of the side piece 9, and its leading edge is bent and extended so as to be parallel to the inner bottom surface of the grooves 8, 8''.

That is, the clamping claws 6 are protruded from the outer surfaces of the side pieces 9, 9 in a cross-sectional shape, and are attached to both the front and back sides of each side plate 2゜2' in the longitudinal grooves 4, 4' of each locking slot 8, 8'. The structure is designed to embrace the following.

Further, on the outer edges of both side pieces 9, 9 of the joint body 5, flange portions 9a are provided which protrude in the direction of the columns 1, 1'.

9a protrudes along the longitudinal direction of the pillars 1, 1', and the inner surfaces of the respective flange portions 9a, 9a form the grooves 8, 8', 8.8.
The front edges of the flange portions 9a, 9a are bent outward at right angles and brought into close contact with the inner surfaces of the respective side plates 2, 2'.

In order to connect the upper and lower struts 1 and 1' in the above configuration, first connect the outer surfaces of both side pieces 9 and 9 of the joint body 5 to the upper strut 1.
At the same time, the inner surfaces of the flange portions 9a and 9a are brought into contact with the inner surfaces of the groove portions 8 and 8' of the outer wall 8a.

8a', and then insert the upper clamping claws 6, 6 into the wide portions of the locking slots 3, 3, and then slide them downward to insert the clamping claws 6.6 into the longitudinal grooves 4. Engage with ゜4,
Further, the protrusions 7, 7 are brought into contact with the upper end surfaces of the locking slots 3, 3.

Then, the joint body 5 is locked in a predetermined position of the support column 1 so that it cannot be inserted or removed.

Then, in a similar manner, the lower outer surfaces of both side pieces 9, 9 of the joint body 5 are brought into contact with the inner surfaces of the side plates 2', 2' of the lower support column 1', and then the lower clamping claws 6, 6 and the protrusion 7 , 7 are respectively engaged with the locking slots 3, 3 of the lower strut 1', thereby connecting the upper and lower struts 1, 1'.

Moreover, the connection between both supports 1, 1' can be released by disengaging the projections 7 from the locking slots 3, 3' in one of the supports.

In this connected state, the side plates 2, 2', 2, 2' of the upper and lower struts 1, 1' which are vertically connected to each other, and the joint body side pieces 9, 9 that are in close contact with them are separated by the respective clamping claws 6. At the same time when each plate is clamped in the thickness direction, the upper and lower clamping claws 6, 6 of one side piece of both sides 9, 9 of the joint body 5 and the flange part 9a of the other side piece Because it acts to tighten each side plate 2, 2', 2, 2' that is in close contact with the other side piece,
The side plates 2, 2', 2, 2' which are vertically connected to each other are also sandwiched in the width direction thereof.

Due to the synergistic effect of this and the fact that the struts 1 and 1' are of a cross-sectional type as a whole, and an external force acting on one side plate in the thickness direction acts on the other side plate in the width direction. , both the upper and lower supports 1, 1' are firmly connected against external forces from each direction.

At the same time, in this connected state, each clamping claw 6 has a concave groove portion 8,
8' and does not protrude from the outer surface of the column, and each groove part 8, 8' protrudes inside the side plate, so that the area of the joint end surface of both branches 1.1' is expanded. This will increase the stability of both branches.

In this way, both the upper and lower supports 1, 1' have their longitudinal axes aligned, and the side plates 2', 2', 2', 2', 2', 2',
2' can be joined together as a single support with the same plane, and the locking slots will be arranged continuously at the same pitch from the lower to the upper support (however, (The locking grooves in the portions where the joint body 5 overlaps and abuts the inner surfaces of the columns 1, 1' cannot be used for other purposes.)

Therefore, in these embodiments, if the pillars are formed in advance to a certain unit length (for example, 90 cm),
If necessary, a plurality of shelves can be easily added via the joint body 5, and the number of stages of assembled shelves can be easily increased.

As described above, the present invention arranges two pillars with a square cross section in a straight line and attaches a joint body with a square cross section on the inside of the joint. A concave groove portion protruding from the inner surface side is formed in the side plate perpendicular to the side plate, and inverted-shaped locking slots are bored at appropriate pitches in each of the groove portions, while the both side pieces 1 of the joint body 'The knees are provided with protruding clamping claws and protrusions that engage with the locking grooves drilled in each of the side plates, and the outer edges of the both side pieces are formed with flange portions that protrude toward the outer surface thereof. The inner surfaces of both flanges are brought into contact with the outer surfaces of each of the grooves, and it is extremely easy to add and disassemble columns, so when transporting to a location that requires a long column, a short column can be used at the site. All it has to do is transport and assemble the joint, which saves on packaging and transport costs, and the structure of the joint is simple, making additions and removals extremely easy without the need for tools or other parts.

When the columns are connected via the joint bodies, the protrusions of the joint bodies engage with the respective locking slots, and the joint bodies are locked to both the columns so that they cannot move up and down. At the same time, each side plate of the support and each side piece of the joint body are brought into close contact with each other in the thickness direction by holding the longitudinal groove of the locking slot with each clamping claw. Each side plate is also held in the width direction by the clamping claw on one side piece of the body and the flange part on the other side piece, so even if an external force is applied from any direction to the joint, both columns will not hold together. It can be firmly connected without coming off easily.

In addition, grooves are formed on both sides of each pillar,
By providing the locking groove in the groove, the clamping claws that fit into the locking groove do not protrude from the outer surfaces of both columns, and the side surfaces of both columns can be used with other parts. It has an effect that can be used for installation.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a perspective view of the device in an exploded state, Fig. 2 is a perspective view of the device with upper and lower supports added, and Fig. 3 is an enlarged cross section taken along the line III-III in Fig. 2. Figure, 4th
The figure is an enlarged sectional view taken along the line N--N in FIG. 2. 1.1'...Strut, 2,2.2', 2'...
...Side plate, 3.3'...Latching slot, 4.4
'...Vertical groove portion, 8a, 8a'...Outside wall, 5...Joint body, 9.9...Side piece, 6... ...Pinching claw, 7...Protrusion, 9a,
9a...Flange part.

Claims (1)

[Scope of utility model registration request] Supports with a cross section shaped like a square cross section that are cut out from mutually orthogonal side plates are arranged in a straight line, and a cross section shaped like a square cross section that fits inside each side plate at the joint part of both the pillars. A joint body is attached to each of the side plates of the above-mentioned both columns, and a concave groove portion protruding inwardly from the side plate is formed along the longitudinal direction of the column, and an inverted letter-shaped groove is formed in each of the groove portions between the columns. While the locking grooves are drilled at the same pitch along the length of the column,
Both side pieces of the joint body include clamping claws that clamp both the inner and outer surfaces of the side plate in the longitudinal groove of the inverted-shaped locking groove of each side plate, and a clamping pawl that clamps both the inner and outer surfaces of the side plate, and a clamping claw opposite to the longitudinal groove in the locking groove. A pair of protrusions that abut and engage with the inner circumferential edges of the sides are protruded, and a flange portion that abuts the outer surface of the outer wall of the groove protruding from the inner surface of each side plate is provided on the outer edge of one of the side plates. A column joint device that protrudes along the longitudinal direction.