JPS6121036Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a clothes drying rack for drying futons, cushions, laundry, etc., and a folding support arm in which leg members of a desk, chair, etc. can be folded with respect to a horizontal member.

Conventionally, in this type of folding means, the leg members are pivotally connected to the horizontal member via a hinge, so the leg members are likely to rattle, and there is a risk of damage to the hinge pivot portion of the leg member. There were also problems such as difficulty in manufacturing and assembly.

The present invention solves these problems and is durable and has a long lifespan, with almost no wobbling due to long-term use, and is easy to manufacture and assemble, making it easy to fold and stand the leg members. The purpose is to make configuration easy and quick. Therefore, the present invention is characterized by having a second connecting arm whose one end side is pivotally attached to the leg member and whose upper end edge is bent at a substantially right angle along the longitudinal direction to form a bent part. ; One end side is pivotally connected to a horizontal member, and
a first connecting arm whose other end side is overlapped and pivotally attached to the other end side of the second connecting arm, and a notch recess is formed in the lower edge of the other end side; a substantially inverted U when viewed from the side;
It is character-shaped, and one end side is approximately horizontal V when viewed from the side.
a holding member formed into a letter-shaped locking part, the other end of which is fixed to the other end of the second connecting arm, and the other end of each of the connecting arms is shaped like a holding member; When each connecting arm is in a substantially straight state, the bent portion on the other end side of the second connecting arm and the upper end edge on the other end side of the first connecting arm are in contact with each other, and the locking portion of the holding member is If the first connecting arm is fitted into the notch recess and locked, and the first connecting arm is swung in the direction opposite to the bent portion from this locked state, the first connecting arm will open the locking portion. The lock is released by being pushed apart.

Hereinafter, the present invention will be explained in detail based on the illustrated embodiments.

FIG. 1 shows an example of a clothes drying rack, which includes a pair of left and right leg members 1, 1 bent into a substantially gate shape, and a clothes drying rack arranged horizontally as a bridge between the leg members 1, 1. A clothes drying rack is constituted by a pair of horizontal members 2, 2 made up of horizontal rods.

Specifically, the vicinity of the upper ends of the leg members 1, 1 are clamped from the outside by horizontal members 2, 2, and the leg members 1, 1 are pivotally mounted around a support shaft 3 so as to be swingable.

FIG. 2 illustrates another clothes drying rack, in which the horizontal member 2 is bent into a rectangular frame shape, and both longitudinal ends thereof are formed to be extendable and retractable so that the length can be adjusted as shown by arrow A. The members 1 and 1 are also formed to be extendable and contractible so that the height position can be adjusted as shown by arrow B.
The length and height position can be freely set according to the shape and size of the futon, cushion, laundry, etc.

4... are folding support arms that enable the leg members 1, 1 to be folded and erected, and as shown in FIGS. 3 to 7, the first and second connecting arms 5, 6,
The folding support arm 4 is constituted by a connecting shaft 7 for pivotally connecting the connecting arms 5 and 6, and a holding member 9 attached to the pivoting portion 8 side so as to hold the connecting arms 5 and 6.

The connecting arms 5 and 6 are each formed of a metal strip material, and have mounting holes 10 and 11 at one longitudinal end thereof, respectively.
is penetrated. The first connecting arm 5 is pivotally attached at one end to the horizontal member 2 with a pivot shaft 12 inserted through the attachment hole 10, and the second connecting arm 6 is also inserted through the attachment hole 11. One end is pivotally attached to the leg member 1 with a pivot shaft 13, and the other ends of the connecting arms 5 and 6 are pivotally connected to the connecting shaft 7, as shown in FIG. It is said to be able to swing.

Specifically, a cutout recess 14 is provided at the other end of the first connecting arm 5, that is, a lower end edge on the side of the pivot portion 8, and a notch recess 14 is formed in the second connecting arm 6 along its upper end edge in the longitudinal direction. A bent portion 15 is provided in a protruding manner, and the cross-sectional shape is an inverted L-shape as shown in FIG.

The holding member 9 is formed by bending a flat metal strip into an inverted U-shape, and one end thereof is bent into a substantially horizontal V-shape as shown in the figure, so that the distance between the two ends of the holding member 9 is set to the other side. The V-shaped bent locking portion 16 is formed in the cutout recess 1 of the first connecting arm 5.
4 so that it can be locked in a fitted manner.

Thus, the holding member 9 has a hole 17 that shares the connection shaft 7 and has the second connection arm 6 bored at the other end.
By caulking a part of the side surface with a press or the like and engaging it in a fit-in manner, rotation around the connecting shaft 7 is prevented and it is reliably attached to the pivot joint portion 8 side. Then, as shown in the figure, the upper edge of the long side of the first connecting arm 5 comes into contact with the inner surface of the bent portion 15 of the second connecting arm 6, and the counterclockwise swinging of the first connecting arm 5 is restricted. Connecting arms 5, 6
The locking portion 1 of the holding member 9 is attached in a holding manner.
6 comes into contact with the upper side of the notched recess 14 of the first connecting arm 5, and the clockwise swinging of the first connecting arm 5 is restricted, and the straight state of the connecting arms 5 and 6, that is, the folding support arm 4 is maintained. Ru.

Then, when the first connecting arm 5 is swung clockwise around the connecting shaft 7 from the linear state, the locking portion 16 of the holding member 9 is pushed out in the direction of arrow C in FIG. The locked state of the stop portion 16 is released, and the first connecting arm 5 is moved to the second connecting arm 6 as shown in FIG.
It is folded as an imaginary line → into a solid line state, and if it is further swung, it is folded into an imaginary line state. At this time, the holding member 9 has its attachment device near the connecting shaft 7, and the width dimension of the holding member 9 is
The width dimension is set so that the first connecting arm 5 overlaps at least a part of the first connecting arm 5 when the first connecting arm 5 is oscillated and folded as shown in FIG. The first connecting arm 5 is prevented from detaching from the holding member 9, allowing smooth rocking motion.

As shown in FIGS. 1, 2, and 3, the folding support arm 4, which is disposed diagonally bridging between the horizontal member 2 and the leg member 1, is formed by a notch in the first connecting arm 5. When the locking part 16 of the holding member 9 is locked in the recess 14 to maintain the linear state, the leg member 1 is erected on the floor and the horizontal member 2 can be held horizontally at a predetermined height position. At the same time, hold the connecting arms 5 and 6 by hand around the connecting shaft 7 and swing them to remove the locking portion 1 from the notch recess 14.
When the locked state of 6 is released and folded,
The leg member 1 swings around the support shaft 3 and the horizontal member 2
It can be folded into a contact shape.

In addition, in the state shown in FIG. 3 with the leg member 1 erected,
The left and right leg members 1, 1 are set so that the angle θ with the horizontal member 2 is larger than 90 degrees so that they form a V-shape when viewed from the front, so that the first connecting arm A counterclockwise force centered on the pivot shaft 12 acts on the second connecting arm 5, and a clockwise force centered on the pivot shaft 13 acts on the second connecting arm 6. 2 Bending portion 1 on the other end side of the connecting arm 6
5 and the upper end edge of the other end of the first connecting arm 5 are in contact with each other, so that the supporting arm 4 is maintained in a straight line and will not be accidentally folded.

9 and 10 are other embodiments in which a notch 18 is formed at the other end of the second connecting arm 6, and a holding member 9 is formed corresponding to the notch 18.
Slits 19 and 19 were opened in
By bending the engaging tongue piece 20 between 9 and 19, the tongue piece 20 is engaged with the notch 18, and the holding member 9 is prevented from rotating around the connecting shaft 7, and the retaining member 9 is pivoted. It is securely attached to the knot 8 side.

The embodiment shown in FIGS. 11 to 15 is another embodiment in which a protrusion 21 is provided protrudingly from the other end of the second connecting arm 6 by press working or the like (see FIG. 14), and a holding member As shown in FIGS. 11 and 15, a folded piece 9a having a locking portion 16 is formed in a T-shape, and the other bent piece 9b has a pair of locking holes at symmetrical positions. By engaging the protrusion 21 with one of the locking holes 22, the holding member 9 is prevented from rotating around the connecting shaft 7, and the pivot connecting portion 8 is prevented from rotating around the connecting shaft 7. Securely attached to the side. In addition, since the holding member 9 is symmetrical as shown in the figure, one type of holding member 9 can be used commonly for the left and right folding support arms 4, 4 for the left and right legs of a clothes drying rack, etc. , the number of parts is reduced, making it possible to reduce manufacturing costs. Note that the connecting shaft 7 is inserted through the other hole 22.

Note that the present invention is not limited to the illustrated embodiment, and may be applied to various other furniture such as desks and chairs. In this case, the horizontal member 2 may be used as a flat plate such as a top plate, a seat, etc. It also includes doing.

The present invention has effectively achieved the intended purpose with the configuration detailed above. In particular, as in the embodiment, when the leg member 1 is erected with the support arm 4 in a straight line, the angle between the leg member 1 and the horizontal member 2 is 90°.
If the force is greater than 1°, a counterclockwise force will be applied to the first connecting arm 5, centered on its one end, and a force will be applied to the second connecting arm 6, in a clockwise direction centered on its one end. The force acts, and the bent portion 15 on the other end side of the second connecting arm 6 always comes into contact with the upper edge of the other end side of the first connecting arm 5, so that the support arm 4 is maintained in a straight state. It is safe and will not be folded accidentally.

Furthermore, in order to fold the support arm 4 of the present invention from a straight state, it is only necessary to swing the first connecting arm 5 in the opposite direction to the bending portion 15 of the second connecting arm 6. and,
If the first connecting arm 5 is swung in the direction of the bent portion 15 from this folded state, it can be brought into a straight state. Therefore, the switching operation between the folding and standing positions of the leg members 1 can be performed easily and quickly. Furthermore, since it has a simple structure, manufacturing and assembly work is easy, and costs can be reduced through mass production, and the leg member 1 is durable with almost no wobbling even after long-term use. The practical effects of use are significant.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figures are a perspective view of another embodiment of the present invention, FIG. 3 is an enlarged front view of the main part, FIG. 4 is an enlarged front view of the support arm, and FIG.
The figure is a bottom view, Figure 6 is a rear view, Figure 7 is an enlarged sectional view of Figure 4, Figure 8 is a front view illustrating the swinging motion of the connecting arm, and Figure 9 shows another embodiment. A rear view of the main parts, FIG. 10 is an enlarged side view thereof, FIG. 11 is an enlarged front view of the support arm showing another embodiment, FIG. 12 is a bottom view, and FIG. 13 is a Y-Y enlarged view of FIG. 11. A sectional view, Fig. 14 is a sectional bottom view of the main part of the connecting arm, Fig. 15
The figure is a rear view of the holding member. DESCRIPTION OF SYMBOLS 1... Leg member, 2... Horizontal member, 5, 6... Connecting arm, 7... Connecting shaft, 8... Pivoting portion, 9... Holding member, 12, 13... Pivoting shaft.

Claims (1)

[Claims for Utility Model Registration] A second connecting arm 6 whose one end side is pivotally attached to the leg member 1 and whose upper end edge is bent at a substantially right angle along the longitudinal direction to form a bent portion 15; , one end side is pivotally attached to the horizontal member 2, and the other end side is overlapped and pivotally attached to the other end side of the second connecting arm 6, and a notch recess 14 is provided at the lower edge of the other end side.
The first connecting arm 5 has a substantially inverted U-shape when viewed from the side, and one end thereof is formed into a substantially horizontal V-shaped locking portion 16 when viewed from the side. a holding member 9 that is fixed to the other end of the second connecting arm 6 and holds the other end of each of the connecting arms 5 and 6, and holds each of the connecting arms 5 and 6 in a substantially straight state. , the bent portion 15 on the other end side of the second connecting arm 6 and the upper end edge on the other end side of the first connecting arm 5 come into contact, and the locking portion 16 of the holding member 9 If the first connecting arm 5 is fitted into the notch recess 14 of the arm 5 and locked, and the first connecting arm 5 is swung in the direction opposite to the bent portion 15 from this locked state, the first connecting arm 5 A folding support arm characterized in that a locking portion 16 is pushed apart to release the lock.