JPS6125440Y2 - - Google Patents

Description

[Detailed description of the invention] A composition comprising a plurality of opposing triangular steps, a pair of triangular hinged step frames of a frame body, and a required number of connecting rods for connecting both the step frames. During the assembly process of the prefabricated steel frame tiers, as the number of large tiers increases, a pair of heavy triangular tier frames are made to stand together upright and a connecting beam is attached to connect them to each other. When assembling them, it is extremely difficult to hold one tier frame upright with one hand and hold the other heavy tier frame upright with the other hand at a predetermined distance. Assembly requires at least two or several hands to support each pair of step frames, and it is extremely inconvenient that it is almost impossible for one person to assemble it, especially in narrow spaces or for elderly people, children, and women. There are some drawbacks regarding assembly.

Therefore, as an advance idea to eliminate this drawback, a plurality of individual fitting parts consisting of short seat plates to which fitting bodies for fitting the frame bodies are attached to both seat leg frames are prepared. Then, the fitting body of each part is fitted from the bottom to both seat leg frames, and the short seat plate of the part is used as a seat plate to prevent falling across the seat leg frame, and each seat leg frame is There are things that are designed to prevent things from falling over.
This is troublesome to handle because it requires preparing multiple fitting parts separately from both seat leg frames and fitting each one to both seat leg frames. When disassembling and storing a tier, it is necessary to remove a large number of fitting parts one by one and store them in a separate bag, etc., which is inconvenient for storage organization, and it is difficult to organize the storage of individual fitting parts. There are drawbacks to the product, such as the risk of losing it.

Therefore, the present invention aims to improve the previous design by integrally connecting the short seat plate to the seat leg frame, eliminates the above-mentioned drawbacks of the previous design, and improves the assembly of the prefabricated steel frame tier. In addition to making storage even easier and more convenient, we have also strengthened the wall thickness of the riveted portion of the short seat board, thereby reliably preventing the torsional collapse of the step frame that tends to occur due to the brittleness of thin riveted parts. The purpose of this is to eliminate any fear of the corrugated frame falling over, to ensure that it remains upright, and to greatly improve demand.

An example of implementing the present invention will be described below with reference to the drawings.

A pair of triangular doll tier frames 4, which form a multiplicity of opposing triangular tiers 2, 2' on which the doll holder 1 is placed, and are provided with seat leg frames 3, 3' of frame-shaped frames.
4', and a predetermined number of connecting rods 5 for connecting each of the tier frames 4, 4', in the prefabricated steel frame tier, the front and rear ends or intermediate portions of the seat leg frames 3, 3' Short seat plates 6, of the required length and width across the seat leg frames 3, 3', are placed on the bottom surface of several suitable places including the
6' and in the frame of the seat leg frames 3, 3' directly above each short seat plate 6, 6', there are reinforcing plates 7, 7 with a thickness of the inner width of the frame.
The short seat plates 6, 6' are fitted onto the bottom surface through the reinforcing plates 7, 7' and riveted at the center with rivets 8, 8 such as eyelets so that they can slide and rotate freely on the bottom surface. They are constructed by integrally connecting them.

In the figure, reference numeral 9 denotes a recess for hiding the lower rivet head so that it does not unnecessarily protrude from the bottom surface of the short seat plates 6, 6' and become a hindrance during rivet attachment, and is a common structure.

As described above, the present invention has reinforcing plates 7 inserted into the frames on the bottom surfaces of the two seat leg frames 3, 3' at several appropriate locations including the front and rear ends or intermediate portions, and then Since the short seat plates 6, 6' are integrally connected by riveting the central part so that they can freely rotate, each of the short seat plates 6, 6'
6' is rotated around the riveted part so that it is parallel to the bottom of the seat leg frames 3, 3', so that each short seat plate 6, 6' As a result, it is stored parallel to the seat leg frames 3, 3' while remaining connected, so it can be stored without getting in the way, there is no fear of losing it, and it is always stored integrally with the seat leg frames 3, 3'. Therefore, it is safe and convenient for disassembling, storing, rearranging, and transporting the sun tier. Also, when assembling, each seat leg frame 6, 6' can be rotated relative to the seat leg frame 3, 3'. If it is made into a cross board, it will immediately serve as a plate to prevent the step frames 4, 4' from falling, so both the step frames 4, 4' can stand independently and stably upright.
By moving them oppositely to positions at predetermined intervals, it is easy to attach the connecting rods 5, and anyone can easily and quickly assemble heavy multi-tiered steel-framed tiers by one person, making it very convenient. This is very useful because all you have to do is rotate each short seat plate 6, 6' vertically and horizontally, so it is very easy to handle, and each short seat plate 6, 6'
In the case of riveting, inserting the reinforcing plates 7, 7' into the frame of the seat leg frames 3, 3' is because the steel frame bottom would otherwise be thin.
As a result of using small and short rivets, the rivets, together with the thin plate, tend to be brittle against torsional pressure, and therefore the corrugated frames 4, 4' tend to wobble and fall down in a twisting manner. However, the structure lacks durability and has a weak ability to prevent falling, and the riveted portions may become twisted and cannot completely support the falling of the step frames 4, 4'. There is a fear that the frames 4 and 4' will fall over, so in order to counter this, the seat leg frames 3 and 3'
It is conceivable to make the frame thicker or wider, but it would be difficult and complicated to manufacture the entire step frame 4, 4' by special processing only the seat leg frames 3, 3'. This not only increases cost and is uneconomical, but also has the opposite effect of increasing weight and shape. Therefore, the present invention is equipped with thick reinforcing plates 7, 7' fitted into the frame. Since the short seat plates 6, 6' are riveted to the short seat plates 6, 6', the rivet parts become thick and reinforced, so they can be used as ordinary seat leg frames 3, 3', and the rivets are Coupled with the fact that 8 and 8' are long rivets, the rivet attachment parts are very strong, and the seat leg frame 3,
3' is reinforced so that the seat leg frames 3, 3' can sufficiently and reliably withstand the tendency of the step frames 4, 4' to wobble and fall down in a twisting manner.
As a result, the size of the short seat plates 6, 6' can be made sufficiently small, and the seat leg frames 3, 3' can also be made with narrow frames, making it possible to easily manufacture the step frame at low cost. In addition to being economical, the fear of the collapsing frames 4 and 4' is completely eliminated, and there is no such collapsing.
As a result, the workability of assembling the tiers is simple and excellent, and the demand for the tiers is greatly improved.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention; Fig. 1 is an assembled perspective view with a part of the mounting plate omitted, and Fig. 2 is an enlarged front view of the short seat plate attachment part showing a cross section of both seat leg frames. FIG. 3 is an enlarged perspective view of the short seat plate attachment part shown with a part cut away, and FIG. 4 is an enlarged sectional view of the short seat plate attachment part in the case of storing the short seat plate. 3, 3'... Seat leg frame, 6, 6'... Short seat plate, 7,
7'...Reinforcement plate, 8,8'...Rivet.

Claims (1)

[Scope of utility model registration request] It is composed of a pair of multi-tiered triangular tier frames 4, 4' provided with seat leg frames 3, 3' of a shaped frame body, and a required number of connecting rods 5 for connecting each of the tier frames 4, 4'. In the assembled steel frame tier, the seat leg frame 3,
3', the seat leg frame 3,
3' with the short seat plates 6, 6' having the required length and width, and the seat leg frame 3, directly above each of the short seat plates 6, 6'.
Reinforcement plate 7 with the required thickness of the frame inner width in the frame 3',
7' is inserted, and the central portion is riveted with rivets 8, 8' so that the short seat plates 6, 6' can be slid and rotated on the bottom surface through the reinforcing plates 7, 7'. An easy-to-assemble steel frame tier that is connected in one piece.