JPS6017151Y2 - Structure of spring stay connection of storage bed - Google Patents

Description

[Detailed description of the invention] This invention is related to the configuration of the connection between the bottom frame of the bed and the spring stay in a retractable bed that utilizes spring force, in order to simplify operation when deploying and storing when not in use. It is something.

In recent years, in order to make effective use of room space, retractable beds have become increasingly popular in bedrooms.

In conventional storage beds of this kind, the headboard side is generally pivoted on a hinge so that it can be rotated at a height position in the use state, and the footboard side is pivoted counterclockwise relative to the wall surface using the pivot point as a fulcrum, and the bed is in the storage state. It was.

Since this bed is frequently operated on a daily basis and its capacity is large, the present applicant is already applying for a retractable bed that utilizes spring force in order to reduce the labor involved in handling it.

In relation to the gist of the present invention, an overview of the spring stay storage bed will be described with reference to Figure 1. 1 is the main frame, 2
is the pinerest, 3 is the headboard, and 4 is the footboard.

Further, 5 is a front leg, and 6 is a rear leg that can be folded forward (indicated by an arrow).

7 is a mouth-shaped spring stay, each of whose forked ends 7a are hinged to a pedestal 9 fixed to a floor surface 8;
The other side bent portion 7b is coupled to the pillar material of the bottom frame 10, which will be described in detail later.

Reference numeral 11 denotes a spring, and an appropriate number of springs are arranged between the legs of the spring stay 7.

One end thereof is secured above the base 9, and the other end is secured to the bent portion 7b of the spring stay via the turnback 12.

Therefore, when the bed is expanded (as shown), the spring 11 constantly applies a tensile force in the direction of the wall surface 13, and the spring stay 7 maintains its position.

This bed supports the front end of the bed upward in its longitudinal direction, urges the footboard 4 side forward, rotates it in the direction of arrow A, and stores it against the wall surface 13 side.

If you want to deploy it in the opposite direction, just pull out the footboard side that has moved to the lower position.

In the present invention, in the storage bed for such a spring stay, the spring stay is coupled to the bottom frame in the following manner from the following points.

That is, as shown in Figure 2, the force required to store the bed is A
Because of the rotational moment generated by xT, the larger A is, the smaller the tension T of the spring 11 is.

Therefore, it is desirable that the connecting portion 7b of the spring stay 7 connected to the bed side be located as high as possible from the floor surface 8.

Therefore, in the present invention, the spring stay 7 is not connected to the main frame 1 by any special means, and the crosspiece of the bottom frame 10 is made of a small piece that is smaller than the length H of the main frame 1 and has sufficient durability. 10a.

As shown in FIG. 4, crosspieces 10a are fixed to right and left positions of the bottom frame 10, and crosspieces 7c adjacent to the pillars 10a are fixed to bent portions 7b of the spring stays 7, respectively.

Thus, the bolts 14 and nuts 15 were connected to each of the frame frames 7c and 10a.

Further, the position of this connection point was set as H'<I ((see FIG. 3), and was set as high as possible above the lower edge of the main frame 1.

As a result, the tension of the spring 11 can be reduced, which is advantageous in designing the function selection of the spring and further simplifies bed operation.

In addition, the joint part has a good viewing angle in the longitudinal and lateral directions.

As described above, the present invention has a frame that is provided with a fixed first leg and a foldable second leg at the lower part of the head side and the lower part of the foot side, respectively, and a frame that can be rotated between a wall surface and a floor surface. a U-shaped stay whose forked ends are pivotally supported on the floor surface, and whose bent portions are arranged in the transverse direction of the frame and pivotally supported on the lower part of the bottom frame near the wall surface; and a spring that is located at the side of the stay and pulls the bent portion of the stay toward the wall surface, and when the second leg is folded, the frame is tilted, and due to the biasing force of the spring, the head side and foot side of the frame are In a bed that moves along the wall surface and the floor surface and is stored with the frame substantially parallel to the wall surface, the lower part of the bottom frame is positioned above the lower part of the frame, and The bent portion of the stay is removably pivoted to the lower part of the bottom frame to form a spring stay connection structure of the storage bed.

Therefore, the following effects are achieved.

■ The frame has legs on both the head and foot sides, so the frame can be removed from the stay and used in another room.

■ The force required to retract the frame is the rotational moment obtained by multiplying the distance A between the point of action of the spring and the floor by the tensile force (biasing force) T of the spring. Since it is located above the lower part of the spring, the distance A between the point of action of the spring and the floor surface can be increased, and the spring tension T can be reduced.

However, if the point of action of the spring and the pivot point between the stay and the bottom frame are different, it would be troublesome to change the position of the latter as the former position changes, but in the present invention, Since both are the same, there is no such trouble.

■ The frame can be maintained both in the unused state and in the used state using only tension springs, and in order to maintain the frame, the structure is much simpler than in the case of using springs that act as tension springs or push springs. becomes easier.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal side view of the storage bed including the connection structure between the bottom frame and the spring stay of the present invention, and Figs. 2 to 4 (partially in cross section) are explanatory diagrams of the gist of the present invention and relevant parts. . 1: Main frame, 2: Pine tress, 7: Spring stay, 7c: Crosspiece, 10: Bottom frame, 10a:
Crosspiece, 11 Spring, 14: Bolt, 15: Nut.

Claims (1)

[Scope of utility model registration request] A frame includes a first leg fixed to the lower part of the head side and a second leg which is foldable at the lower part of the foot side, respectively, and a forked end part pivots on the floor surface so as to rotate between the wall surface and the floor surface. a U whose bent portion is arranged in the transverse direction of the frame and pivoted to the lower part of the bottom frame near the wall surface;
It consists of a letter-shaped stay and a spring that is located under the frame and pulls the bent part of the stay toward the wall surface, and when the second leg is folded, the frame tilts, and due to the biasing force of the spring, In a bed in which the head side and foot side of the frame move along the wall surface and the floor surface, respectively, and the frame is stored in a state substantially parallel to the wall surface, the lower part of the bottom frame is moved along the wall surface and the floor surface, respectively. A spring stay connection structure for a storage bed, wherein the stay is located above a lower part of the bottom frame, and the bent part of the stay is removably pivoted to the lower part of the bottom frame.