JP2002095898A - Ironing board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ironing board provided with a simple locking device having a structure capable of automatically locking at the time when a support leg is erected and easily releasing the lock at the time of folding the support leg. SOLUTION: This ironing board has a hollow horizontal axis part 2a at the upper end of a support leg 2 fitted to a bearing 3 on the rear side of the ironing board main body 1 rotatably, and the rear side of the ironing board main body 1 is provided with a locking device 4 of the support leg comprising a guide pin 41 penetrated through and fixed to the hollow horizontal axis part 2a in a diameter direction with the one end part of the pin 41a projecting, a lock pin 42 installed to the hollow horizontal axis part 2a to oscillate with the one end part of the pin 42a projecting, an extension spring 43 stretched between both of the pins 41 and 42, a guide pin-guiding groove 44 and lock pin-guiding groove 45 that are formed in the bearing 3 circumferentially and a lock groove 46 bent to the guide pin-guiding groove from the end part of the lock pin-guiding groove and formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an ironing board,
More specifically, when the support legs are turned downward from the state of being folded to the back side of the ironing board main body to be in the standing state,
The present invention relates to a convenient ironing board provided with a lock device for automatically locking a support leg so that it cannot rotate.

[0002]

2. Description of the Related Art Conventionally, ironing boards of various structures have been developed, and some of them include an ironing board in which supporting legs can be folded on the back side of the ironing board body.
Such an ironing board has the advantage that it can be stored if there is a small storage space because the supporting legs are not bulky when folded.

[0003]

However, the conventional ironing board of the type in which the support legs are folded does not have a lock device for locking the support legs so that the support legs do not fall down when the support legs are turned downward to be in the standing state. Even if there is a lock device, there are many things that require manual locking of the support legs, ones where the lock release operation is troublesome, and ones where the structure of the lock device is complicated and costly There was a problem.

The present invention has been made to address such a problem, and has as its object the purpose of automatically locking the support leg when the support leg is in a standing position, and easily releasing the lock when the support leg is folded. An object of the present invention is to provide an ironing board provided with a lock device having a simple structure.

[0005]

In order to achieve the above object, an ironing board according to the present invention has a hollow horizontal shaft portion at the upper end of a support leg formed by bending a metal pipe rotatably mounted on a bearing on the back side of an ironing board body. An ironing board provided with a lock device that locks the support leg so that the support leg cannot be rotated when the support leg is turned downward from a state in which the support leg is folded to the back side of the ironing board main body, and the lock device is A guide pin fixed radially through the hollow horizontal shaft portion at the upper end of the support leg and one end of the pin protruding outward from the hollow horizontal shaft portion, and a long hole formed in the hollow horizontal shaft portion at the upper end of the support leg and extending in the axial direction. One end of the pin protrudes and the other end of the pin is loosely inserted into a mounting hole formed at a position facing the long hole of the hollow horizontal shaft portion so as to be swingable within the range of the long hole. Lock pin and guide pin A tension spring stretched between the lock pin and biasing the lock pin toward the guide pin, and one end of the guide pin and one end of the lock pin formed in the bearing in a circumferential direction. A guide pin guide groove and a lock pin guide groove for guiding each in the circumferential direction, and a lock groove formed by bending from the end of the lock pin guide groove toward the guide pin guide groove. Features.

In the ironing board provided with such a lock device, when the supporting leg is turned downward from the folded state to the back side of the ironing board main body to be in the standing state, the hollow horizontal shaft portion at the upper end of the supporting leg is rotated. One end of the guide pin and one end of the lock pin protruding from the hollow horizontal shaft portion move in the guide pin guide groove of the bearing and the inside of the lock pin guide groove in the circumferential direction, respectively, and one end of the lock pin is guided by the lock pin guide. When the lock pin reaches the end of the groove, the lock pin pivots toward the guide pin by the force of the tension spring, so that one end of the lock pin fits into the lock groove and cannot move in the circumferential direction. Is automatically locked to prevent rotation. At this time, since one end of the guide pin is prevented from moving in the axial direction by the guide pin guide groove, the hollow horizontal shaft portion of the support leg is displaced in the axial direction of the bearing, and one end of the lock pin is locked in the lock groove. It does not get stuck in the lock groove or come off the lock groove.

On the other hand, when releasing the lock and folding the supporting leg to the back side of the ironing board main body, the protruding one end of the lock pin is pinched with a fingertip, and the lock pin is separated from the guide pin against the force of the tension spring. One end of the lock pin is removed from the lock groove by turning in the direction, and the support leg may be turned in this state.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of an ironing board according to an embodiment of the present invention, FIG. 2 is a plan view showing the ironing board partially cut away, FIG. 3 is a front view of the ironing board, and FIG. FIG. 5 is an enlarged sectional view taken along line AA of FIG. 3, FIG.
7 is a partial perspective view of the ironing board turned over, FIG. 6 shows a state in which the support legs are folded, and FIG. 7 shows a state in which the support legs are erected. 8 and 9 are enlarged bottom views of the lock device of the ironing board. FIG. 8 shows a state when the support legs are folded, and FIG. 9 shows a state when the support legs are raised. FIG. 10 is a sectional view taken along line BB of FIG.

As shown in FIGS. 1 and 3, the ironing board has a pair of left and right support legs 2 attached to an ironing board main body 1. The support leg 2 is formed by bending a metal pipe into a trapezoidal shape. As shown in FIGS. 4 to 7, the hollow horizontal shaft portion 2a at the upper end of the support leg is supported by a bearing 3 on the back side of the ironing board body 1 and rotates. Mounted as possible. When the support legs 2, 2 are pivoted downward as shown in FIG. 3 to be in a "C" -shaped standing position, the lock devices 4, 4 for locking the support legs 2, 2 so that they cannot rotate. Is provided on the back side of the ironing board main body 1.

The ironing board body 1 has a shell-shaped plane shape, and as shown in FIGS. 4 to 7, two metal frame members 1a, 1a and a metal frame bent into a shell shape. Material 1b is welded and a metal net 1 is
By welding c, the skeleton of the ironing board main body 1 is formed. Then, a soft fiber mat 1d having good cushioning property is overlaid on the net 1c of the skeleton, and a cloth cover 1e having good heat resistance is attached thereon, thereby constituting the ironing board body 1. At one end (the right end in FIGS. 1 to 4) of the ironing board main body 1, an iron mounting shelf 1 f formed by bending a metal bar into a substantially U-shape is mounted so as to be able to come and go.

On the other hand, as shown in FIG. 10, a guide pin 41 is provided on the hollow horizontal shaft portion 2a of the support leg 2.
The guide pin 41 has one end 41a (the upper end in FIG. 10) projecting outward from the hollow horizontal shaft portion 2a.

A lock pin 42 is attached to the hollow horizontal shaft portion 2a alongside the guide pin 41. The lock pin 42 has a pin end 42a having a knob.
(In FIG. 10, the upper end portion) protrudes outward from the axially long slot 2b formed in the hollow horizontal shaft portion 2a, and has a pin other end portion 42b having a large diameter head (the lower end portion in FIG. 10).
Is attached to the hollow horizontal shaft portion 2a at a position facing the long hole 2b by being inserted into the mounting hole 2c formed inward so that the hollow horizontal shaft portion 2a cannot be pulled out. The lock pin 42 can swing within the range of the elongated hole 2b.

Further, a tension spring 43 is stretched between the guide pin 41 and the lock pin 42 inside the hollow horizontal shaft portion 2a, and the lock pin 42 is fixed to the guide pin 41 by the tension spring 43. It is always urged to rotate in the direction.

On the other hand, the bearing 3 which receives the hollow horizontal shaft portion 2a has flange portions 3 on both sides as shown in FIGS.
a, 3a, a metal bearing having a substantially semi-cylindrical shape. The above-mentioned flange portions 3a, 3a are attached to a mounting plate 1g welded between two frame members 1a, 1a of the ironing board body 1 by a fastener or the like. Installed by fixing.

On one side of the bearing 3, a guide pin guide groove 44 and a lock pin guide groove 45 are formed in the circumferential direction, and one end portion 41a of the guide pin projecting from the hollow horizontal shaft portion 2a at the upper end of the support leg. One end 42a of the lock pin 42
Are moved inside the guide grooves 44 and 45 and guided in the circumferential direction. A lock groove 46 is formed to be bent at a right angle from the end of the lock pin guide groove 45 toward the guide pin guide groove 44, and one end of the lock pin guided to the end of the lock pin guide groove 45. 42 a fits into the lock groove 46.

The lock device 4 of the support leg 2 is constituted by the above-described guide pin 41, lock pin 42, tension spring 43, guide pin guide groove 44, lock pin guide groove 45, and lock groove 46, and has a structure. Is simple, it is inexpensive and hardly breaks down, and operates as follows to securely lock the support leg 2.

That is, when the support leg 2 is folded on the back side of the ironing board main body 1, as shown in FIGS. 6 and 8, both the guide pin 41 and the lock pin 42 are in a horizontal orientation. , 42 projecting one end 41
Both a and 42a are located at the open ends of the guide pin guide groove 44 and the lock pin guide groove 45.

In this state, when the support leg 2 is rotated downward as shown in FIG. 3 to be in the standing position, the hollow horizontal shaft portion 2a at the upper end of the support leg 2 rotates in the direction of arrow X in FIG. One end 41a of the guide pin and one end 4 of the lock pin projecting from the hollow horizontal shaft 2a with the rotation of the horizontal shaft 2a.
2a moves in the guide pin guide groove 44 and the lock pin guide groove 45 of the bearing 3 in the circumferential direction, and abuts on the closed ends of both guide grooves 44, 45. Then
As shown in FIG. 10, the lock pin 42 is rotated toward the guide pin 41 by the force of the tension spring 43, so that one end 42a of the lock pin 42 is locked in the lock groove 46 as shown in FIGS.
, And cannot be moved in the circumferential direction, whereby the support leg 2 is automatically locked so as not to rotate. At this time, since the one end 41a of the guide pin 41 only moves in the circumferential direction inside the guide pin guide groove 44 and is prevented from moving in the axial direction, the hollow horizontal shaft portion 2a of the support leg 2 is , The one end portion 42a of the lock pin 42 does not fit into the lock groove 46 and does not come off the lock groove 46.

On the other hand, when the lock is released and the support leg 2 is folded to the back side of the ironing board main body 1, the knob of the protruding one end 42 a of the lock pin 42 is grasped with a fingertip, and the force of the tension spring 43 is resisted. Lock pin 42 to guide pin 41
By rotating the lock pin in the direction away from the lock pin, the one end 42a of the lock pin is removed from the lock groove 46, and the support leg 2 may be rotated in that state, so that the operation is extremely simple.

[0021]

As is apparent from the above description, the ironing board of the present invention can automatically lock the support legs so that they cannot rotate when the support legs are turned downward from the folded state to the standing state. In addition, there is a remarkable effect that the operation for releasing the lock when the support leg is folded is simple, and the structure of the lock device is simple, so that it is difficult to break down and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of an ironing board according to an embodiment of the present invention.

FIG. 2 is a plan view showing the ironing board partially cut away.

FIG. 3 is a front view of the ironing board.

FIG. 4 is a bottom view of the ironing board.

FIG. 5 is an enlarged sectional view taken along line AA of FIG. 3;

FIG. 6 is a partial perspective view of the ironing board turned over,
It shows a state in which the support legs are folded.

FIG. 7 is a partial perspective view of the ironing board turned over,
This shows a state in which the support legs are upright.

FIG. 8 is an enlarged bottom view of the lock device of the ironing board, showing a state where the support legs are folded.

FIG. 9 is an enlarged bottom view of the lock device of the ironing board, showing a state when the support legs are erected.

FIG. 10 is a sectional view taken along line BB of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ironing board main body 2 Support leg 2a Hollow horizontal shaft part at the upper end of support leg 2b Slot 2c Mounting hole 3 Bearing 4 Locking device 41 Guide pin 41a One end of guide pin 42 Lock pin 42a One end of lock pin 42b The other end of lock pin Part 43 Tension spring 44 Guide pin guide groove 45 Lock pin guide groove 46 Lock groove

Claims (1)

[Claims] 1. A hollow horizontal shaft portion at the upper end of a support leg formed by bending a metal pipe is rotatably mounted on a bearing on the back side of an ironing board body, and the support leg is turned downward from a state of being folded to the back side of the ironing board body. An ironing board provided with a lock device for locking the supporting leg so that it cannot rotate when the standing leg is in the standing position, wherein the locking device is fixed to the hollow horizontal shaft portion at the upper end of the supporting leg in a radial direction so as to be pinned. A guide pin whose one end protrudes outward from the hollow horizontal shaft portion, and a pin one end protrudes from an elongated hole formed in the hollow horizontal shaft portion at the upper end of the support leg and the other end of the pin has the length of the hollow horizontal shaft portion. A lock pin that is loosely inserted into a mounting hole formed at a position facing the hole and that is mounted so as to be swingable within the range of the elongated hole, and a lock pin that is stretched between the guide pin and the lock pin. Rotate toward guide pin A tension spring that urges the bearing, a guide pin guide groove and a lock pin guide groove that are formed in the bearing in the circumferential direction to guide one end of the guide pin and one end of the lock pin in the circumferential direction, respectively; An ironing board comprising: a lock groove formed by bending an end portion of a pin guide groove toward a guide pin guide groove.