JPH07250998A - Mechanism for folding open leg of iron base supporting leg - Google Patents

Abstract

PURPOSE:To permit a fingertip operation by providing the rear surface of an iron base plate with bearings for adjusting turning and bearings for adjusting sliding, fitting the horizontal shaft parts of legs having an approximately U shape into these bearings for adjusting sliding from the side of the bearings for adjusting turning, energizing the front ends thereof backward by means of springs and holding the front ends to turning positions by means for detaining the bearings for adjusting turning at the time of turning the legs. CONSTITUTION:Detaining pins 20, 21 move in guide holes 12, 13 of detaining adjusting holes 18, 19 formed on the peripheral walls of the respective bearings 4, 5 for adjusting turning and engage with engaging holes 14, 15 or 16, 17 when the horizontal leg parts 63, 73 of the supporting legs 6, 7 are turned around the horizontal shaft parts 62, 72. At this time, the front ends of the horizontal parts 62, 72 are held pressed and energized backward, i.e., to the side of the bearings 4, 5 for adjusting turning by the coil springs 10, 11 and, therefore, the detaining pins 20, 21 are automatically engaged with the detaining holes 14, 15 or 16, 17. The supporting legs 6, 7 are held in an open state when the pins 20, 21 are detained to the detaining holes 14, 15. The legs are held in a folded state when the pins are detained in the engaging holes 16, 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening leg folding mechanism for a support leg attached to a lower surface of a base plate of an ironing board, and more specifically, for opening and folding a pair of support legs, and further for opening or folding the support legs. The holding operation in the state is
The present invention relates to an open leg folding mechanism for an ironing board support leg, which can be easily and smoothly operated by one-touch operation and can be stably held in a state where the support leg is opened or folded.

[0002]

2. Description of the Related Art Generally, an ironing board having supporting legs having a folding mechanism opens each supporting leg when ironing and folds each supporting leg after use so that it can be easily carried and stored. ing.

[0003]

However, in the conventional supporting legs having the folding mechanism attached to the ironing board, even if the opening / closing operation of each supporting leg can be performed by one-touch operation,
The operation of holding the supporting leg in the open or folded state cannot be performed by one-touch operation in conjunction with it, and the supporting leg cannot be stably held in the opened or folded state by the same one-touch operation.

The present invention has been made in view of the above situation, and the operation of opening and folding a pair of support legs, and the operation of holding the support legs in the opened or folded state are all linked by one-touch operation. It is an object of the present invention to provide an open leg folding mechanism for an ironing board supporting leg that can be easily and smoothly performed, and that can stably hold the support leg in the opened or folded state.

[0005]

SUMMARY OF THE INVENTION An open leg folding mechanism of an ironing board supporting leg according to the present invention includes a pair of slide adjusting bearings having springs mounted at the front and rear ends of a lower surface of a base plate, and a circumferential wall on a peripheral wall. A pair of rotation adjustment bearings, each having a guide hole and a locking adjustment hole formed by communicating an engaging hole to the rear from both ends of the guide hole, are fixed, and the horizontal leg and the horizontal leg are parallel to each other. The horizontal shafts of the pair of support legs, which are integrally connected to each other through the bent connecting portions, are rotatably fitted and inserted from the rotation adjusting bearings to the sliding adjusting bearings. The tip of the sliding adjustment bearing is pressed and urged rearward by a spring installed inside the tip of the sliding adjustment bearing, and the engagement adjustment holes provided on the peripheral wall of the rotation adjustment bearing are provided on the side walls of the horizontal shafts. By inserting the stop pin and rotating each horizontal leg, each locking pin of each horizontal shaft is guided Automatically engaged in any one of the engaging holes communicating is configured to open leg or folding the pair of support legs.

Further, when the pair of support legs are opened, the length of the engaging hole in the rotation adjusting bearing peripheral wall with which the engaging pins protruding from the side walls of the horizontal shafts engage is determined by The length of the engaging hole of the rotation adjusting bearing peripheral wall is set to a length equal to or larger than the diameter, and when the pair of support legs are folded, the engaging pins protruding from the side walls of the horizontal shafts engage with the engaging holes. It is shorter than the diameter of.

Further, a locking pin fitted into a locking adjustment hole provided on the peripheral wall of the rotation adjusting bearing is provided on the side wall of the pair of supporting leg horizontal shafts facing the horizontal leg portion, and the locking adjustment is performed. Guide holes are provided in the circumferential direction from the outer side of the central portion of the peripheral wall to the inner side of the peripheral wall, and the engagement pins that engage with each locking pin when the pair of support legs are opened are guided to the outer side of the central portion of the peripheral wall. An engagement hole is formed rearward from the hole end, and an engagement hole with which each locking pin engages when the pair of support legs is folded is formed rearward from the inner guide hole end of the peripheral wall.

[0008]

Since the open leg folding mechanism of the ironing board support leg of the present invention is configured as described above, it is possible to perform the leg opening and folding operation of the pair of support legs, and the open or folded state of the support legs. All the holding operations can be easily and smoothly performed by interlocking with one-touch operation, and the supporting legs are stably held in the opened or folded state.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of an open leg folding mechanism of an ironing board supporting leg of the present invention attached to an ironing board will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a rectangular ironing board base plate having a tapered protruding portion at its tip, and a pair of sliding adjustment bearings 2 and 3 and rotation adjusting bearings 4 and 5 are fixed to the front and rear of the lower surface, respectively. ing.

Reference numerals 6 and 7 denote a pair of support legs formed by bending a pipe into a U shape, and are bent connecting portions 61 and 71.
Through the horizontal shaft portion 62, 72 and the horizontal leg portion 63,
73 are arranged side by side, and the horizontal shaft portion 62 is rotatable with respect to the sliding adjustment bearing 2 and the rotation adjustment bearing 4, and the horizontal shaft portion 72 is rotatable with respect to the sliding adjustment bearing 3 and the rotation adjustment bearing 5. Has been inserted into.

As shown in the sectional views of FIG. 1 and FIG. 3, the sliding adjustment bearings 2 and 3 are provided with coil springs 10 and 11 by forming collar edges 8 and 9 at the tip of the peripheral wall by drawing, and inside the peripheral wall. The front ends of the horizontal shaft portions 62 and 72 rotatably fitted to the support legs 6 and 7 are always pushed rearward, and the support legs 6 and 7 are always pushed backward.

Further, as shown in FIGS. 1 and 2, the rotation adjusting bearings 4 and 5 are provided with circumferential guide holes 12 and 13 extending from the outer side of the central portion of the peripheral wall to the inner side thereof. Both ends of the guide holes 12 and 13 are in communication with engaging holes 14 and 15 formed rearward from the outside of the central portion of the peripheral wall and engaging holes 16 and 17 formed rearward from the inner side of the peripheral wall. Stop adjustment hole 1
8 and 19 are formed, and in the locking adjustment holes 18 and 19, the horizontal leg portions 63 and 73 of the horizontal shaft portions 62 and 72 of the support legs 6 and 7 are formed.
Locking pins 20 and 21 projecting from the side wall opposed to are fitted and inserted.

Therefore, the horizontal leg portions 63 of the support legs 6 and 7,
When 73 is rotated, the locking pins 2 of the horizontal shaft portions 62, 72
0 and 21 move in the guide holes 12 and 13 of the locking adjustment holes 18 and 19 provided on the peripheral walls of the rotation adjustment bearings 4 and 5,
The engagement holes 14, 15 on the outer side of the central portion of the peripheral wall or the engagement holes 16, 17 on the inner side are automatically engaged.

Therefore, as shown in FIG.
When the horizontal legs 63, 73 of the
The two locking pins 20 and 21 are automatically engaged with the engaging holes 14 and 15 on the outer sides of the central portions of the peripheral walls of the rotation adjusting bearings 4 and 5,
It is held in an open-legged state that opens outwards downward.

As shown in FIGS. 4 and 5, when the horizontal leg portions 63 and 73 of the support legs 6 and 7 are folded, the locking pins 20 and 21 of the horizontal shaft portions 62 and 72 are rotated and adjusted. 4,
5 is automatically engaged with the engagement holes 16 and 17 on the inner side of the peripheral wall of No. 5, and is held in a folded state.

Here, the engaging holes 14 and 15 on the outer side of the central portions of the peripheral walls of the rotation adjusting bearings 4 and 5 are such that the locking pins 20 and 21 are completely fitted in the engaging holes 14 and 15. Therefore, it is preferable to make the length equal to or larger than the diameter of the locking pins 20 and 21, and thus the locking pins 20 and 21 are completely fitted in the engaging holes 14 and 15. In this way, the support legs 6 and 7 once opened cannot rotate even if the horizontal legs 63 and 73 are to be rotated inward as they are.

As a result, the support legs 6, 7 once opened
Is, for example, the horizontal legs 63, 7 during ironing.
Even if a lateral force or the like is applied to 3 from the outside, it is not folded and the opened support legs 6 and 7 are stably held as they are.

When the opened support legs 6 and 7 are to be folded, the bending connecting portions 61 and 71 are pushed, and the tip ends of the horizontal shaft portions 62 and 72 are installed inside the tip portions of the slide adjustment bearings 2 and 3. The supporting legs 6, 7 by pressing the coil springs 10, 11
Is moved forward, the locking pins 20 and 21 projecting from the side walls of the horizontal shaft portions 62 and 72 are disengaged from the engaging holes 14 and 15 on the outer side of the central portions of the peripheral walls of the rotation adjusting bearings 4 and 5. To reach the guide holes 12 and 13, and the horizontal shaft portions 62 and 72 are rotatable. Then, if the horizontal legs 63 and 73 are rotated inward in this state, the support legs 6 and 7 are opened, and these operations are performed by one-touch operation.

Further, the engagement holes 16 and 17 in the inner portions of the peripheral walls of the rotation adjusting bearings 4 and 5 have a length smaller than the diameter of the locking pins 20 and 21, for example, the radius of the locking pins 20 and 21. It is preferable to have the same length as
With the same length as the radii of 0 and 21, the locking pins 20 and 21 are not completely fitted in the engagement holes 16 and 17, as shown in FIGS. 4 and 5.

When the horizontal leg portions 63 and 73 of the folded support legs 6 and 7 are strongly rotated outward by hand, the locking pins 20 and 21 are disengaged from the engagement holes 16 and 17 and opened. Legged,
The supporting legs 6 and 7 can be opened by a one-touch operation of strongly rotating the horizontal legs 63 and 73 outward by hand. Also,
When folded, the horizontal legs 63,7 of the support legs 6,7
Since the leg 3 is not opened unless it is strongly turned outward by hand, it is stably held in the folded state, and the support legs 6 and 7 do not wander.

Furthermore, when folding the support legs 6 and 7,
As shown in FIG. 4, the horizontal shaft portion 6 is provided with respect to the horizontal shaft portion 72.
If 2 is made long, the horizontal leg portion 63 is superposed on the horizontal shaft portion 72, and the horizontal leg portion 73 is superposed on the horizontal shaft portion 62 so as to be compactly folded.

Reference numerals 22 and 23 denote horizontal leg portions 6 of the support legs 6 and 7.
It is a rubber cap fitted to the tips of 3,73.

As described above, the support legs 6 and 7 can be opened by simply turning the horizontal leg portions 63 and 73 by hand strongly outward, and the horizontal shaft portions 62 and 72 can be locked. Pin 2
It is possible to automatically engage 0 and 21 with the engaging holes 14 and 15 on the outer sides of the central portions of the peripheral walls of the rotation adjusting bearings 4 and 5 and stably hold them in the open state. These operations are one-touch operations. Can be done at.

Further, the bent connecting portion 6 of the supporting legs 6 and 7
1, 71 to push the horizontal shaft portions 62 and 72 forward against the coil springs 10 and 11 in the slide adjustment bearings 2 and 3, and to hold the locking pins protruding from the side walls of the horizontal shaft portions 62 and 72. Two
0, 21 can be folded by simply turning them inward along the guide holes 12, 13, and the locking pins 20, 2 can be folded.
1 is the engaging hole 16, 1 on the inner side of the peripheral wall of the rotation adjusting bearing 4, 5.
7 can be automatically engaged and stably held in a folded state, and these operations can also be performed by one-touch operation.

Therefore, the operation of opening and folding the support legs 6 and 7, and the operation of holding the support legs 6 and 7 in the opened or folded state can all be performed easily and smoothly by one-touch operation.

Further, the support legs 6 and 7 that have once been opened have a force to slide forward on the bent connecting portions 61 and 71 even when a lateral force or the like acts on the horizontal leg portions 63 and 73 from the outside. The support legs 6 and 7 that are folded are not folded, and the support legs 6 and 7 that are folded are held in the folded state unless the horizontal leg portions 63 and 73 are strongly rotated outward by hand, and the legs and Maintains good stability in the folded state.

In the above embodiment, the locking pins 20 and 2 are
1 is projectingly provided on the side wall of the horizontal shaft portions 62, 72 facing the horizontal leg portions 63, 73, and the guide holes 12, 13 are provided with the rotation adjusting bearings 4, 4.
5 are formed in the circumferential direction from the outer side to the inner side of the central portion of the peripheral wall of the peripheral wall 5, and both ends of the guide holes 12 and 13 are engaged holes 14 and 15 formed rearward from the outer side of the central portion of the peripheral wall. Also, the locking pins 20 and 21 and the engaging hole 1 are communicated with the engaging holes 16 and 17 that are bored rearward from the inside of the peripheral wall.
4, 15 and 16, 17, the positional relationship with the support legs 6,
There is no particular limitation as long as 7 can be opened or folded.

For example, the locking pins 20 and 21 are provided so as to project toward the inner side of the side wall of the horizontal shaft portions 62 and 72 facing the horizontal leg portions 63 and 73, and the guide holes 12 and 13 are provided with the rotation adjusting bearings 4 and 5.
Perforated in the circumferential direction from the central part to the inner part of the peripheral wall of
Both ends of the guide holes 12 and 13 may be communicated with the engagement holes 14 and 15 formed rearward from the central portion of the peripheral wall and the engagement holes 16 and 17 formed rearward from the inner side portion of the peripheral wall. Also in this case, the supporting legs 6 and 7 are opened downward and open outward, and are held in this opened state.

Further, the locking pins 20 and 21 are attached to the horizontal shaft portion 6
2, 72 are provided on the side wall opposed to the horizontal leg portions 63, 73, and guide holes 12, 13 are formed in the circumferential direction from the central portion to the inner portion of the peripheral wall of the rotation adjusting bearings 4, 5. Even if both ends of the guide holes 12 and 13 are communicated with the engagement holes 14 and 15 formed rearward from the central portion of the peripheral wall and the engagement holes 16 and 17 formed rearward from the inner side portion of the peripheral wall. Well, in this case,
The supporting legs 6 and 7 are opened vertically and held in this opened state.

Further, the springs installed in the tip end portions of the slide adjustment bearings 2 and 3 are not limited to the coil springs 10 and 11, and have elastic force and support legs 6 and 7 via the horizontal shaft portions 62 and 72. Anything can be used as long as it can press and urge backward.

Further, the support legs 6 and 7 are not limited to those obtained by bending a pipe into a U-shape, but may be formed from a material other than the pipe, and further, not a U-shape but a quadrangle or a trapezoid. It may be bent into various shapes.

[0032]

As described above, according to the present invention, the horizontal leg portion of each support leg can be opened by simply turning the outer leg portion strongly outward by hand, and the horizontal leg portion of each horizontal leg portion can be opened. Each locking pin can be automatically engaged with the engagement hole provided on the peripheral wall of each rotation adjustment bearing to hold it stably in the open state.When folding, push the bending connection part and each horizontal shaft part. Can be folded by simply rotating each horizontal leg inward while moving forward against the spring installed in the tip of the slide adjustment bearing, and locking each horizontal shaft. The pin can be automatically engaged with the engaging hole provided in the peripheral wall of each rotation adjusting bearing and stably held in the folded state.

Therefore, the operation of opening and folding the pair of support legs, and the operation of holding the support legs in the opened or folded state can be performed easily and smoothly by one-touch operation, and the support legs can be opened. It can be held stably with legs or folded.

Furthermore, since the supporting legs can be opened and folded very easily and the structure is very simple, they can be easily manufactured and provided at low cost.

[Brief description of drawings]

FIG. 1 is a rear perspective view showing an example of a state in which the support legs of an ironing board support leg of the present invention are opened and the support leg of the ironing board provided with a folding mechanism is opened.

FIG. 2 is an enlarged perspective view of one rotation adjustment bearing in which the horizontal shaft portion of the support leg shown in FIG. 1 is rotatably fitted and inserted.

3 is an enlarged cross-sectional view of a slide adjustment bearing in which a horizontal shaft portion of the support leg shown in FIG. 1 is rotatably fitted and inserted.

FIG. 4 is a rear perspective view of the ironing board supporting leg shown in FIG. 1 in a state in which the supporting leg of the ironing board including the leg opening and folding mechanism is folded.

5 is an enlarged perspective view of one rotation adjustment bearing in which the horizontal shaft portion of the support leg shown in FIG. 4 is rotatably fitted and inserted.

[Explanation of symbols]

 1 Ironing board base plate (base plate) 2,3 Sliding adjustment bearing 4,5 Rotation adjustment bearing 6,7 Support leg 61,71 Bending connection part 62,72 Horizontal shaft part 63,73 Horizontal leg part 10,11 Coil spring ( Spring) 12,13 Guide hole 14,15 16,17 Engagement hole 18,19 Engagement adjustment hole 20,21 Engagement pin

Claims (3)

[Claims] 1. A pair of sliding adjustment bearings, each having a spring therein at a front end thereof, are provided in front and rear of a lower surface of a bed plate, and circumferential guide holes are provided in a peripheral wall, and engaging holes are provided rearward from both ends of the guide holes. A pair of rotation adjustment bearings having locking adjustment holes bored through are fixed to each other, and a horizontal leg portion and a horizontal shaft portion parallel to the horizontal leg portion are integrally connected via a bent connecting portion. The horizontal shafts of the pair of support legs are rotatably fitted from the rotation adjustment bearings to the sliding adjustment bearings, and the tips of the horizontal shafts are rearwardly mounted by springs installed at the tips of the slide adjustment bearings. While pressing and urging, each locking pin protruding from the side wall of each horizontal shaft is inserted into the locking adjustment hole provided in the peripheral wall of the rotation adjustment bearing, and each horizontal leg is rotated to Each locking pin of the horizontal shaft is automatically engaged with one of the engaging holes communicating with the guide hole, and the pair of support legs is Opening leg folding mechanism for ironing board supporting legs characterized by opening legs or folding 2. The length of the engagement hole of the rotation adjusting bearing peripheral wall with which the locking pins projecting from the side walls of the horizontal shafts engage when the pair of support legs is opened, Make it longer than the diameter,
A length of an engagement hole of a rotation adjusting bearing peripheral wall with which each locking pin protruding from the side wall of each horizontal shaft portion engages when the pair of support legs is folded is shorter than a diameter of the locking pin. 1. An open leg folding mechanism for an ironing board supporting leg according to 1. 3. A locking pin to be inserted into a locking adjustment hole provided on the peripheral wall of the rotation adjusting bearing is provided on a side wall of the pair of support leg horizontal shafts facing the horizontal leg portion, and the locking adjustment is performed. The guide hole of the hole is provided in the circumferential direction from the outer side of the central part of the peripheral wall to the inner side,
When the pair of support legs are opened, an engaging hole is formed so that each locking pin engages rearward from the end of the guide hole toward the outside of the central portion of the peripheral wall, and each locking pin is folded when the pair of supporting legs is folded. 3. An open leg folding mechanism for an ironing board supporting leg according to claim 2, wherein an engaging hole for engaging with is formed rearward from the end of the inner guide hole of the peripheral wall.