JP2834696B2 - Home snack leg - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leg for a home game.

[0002]

2. Description of the Related Art As shown in FIG. 13, a conventional home diaper leg provided with an inner cylinder 42 and an outer cylinder 43 slidably fitted to the inner cylinder 42 has a conventional structure. A rocking body 45 having an E-shaped locking groove 44 in the inside of the leg and pivotally supported by a pivot 46, and a locking member which is removably locked to a locking portion 44a of the locking groove 44. Axis 48
Slides down and slides on a U-shaped hanging protruding plate 47 provided below the rocking body 45 to swing the rocking body 45 to release the locking of the locking shaft 48 to the locking portion 44a. And an operation member 49.

[0003]

At the upper part of the inner cylinder 42,
A fitting member 40 having a pair of hanging wall plates 41, 41 is provided therein. The fitting member 40 having the hanging wall plates 41, 41 is necessary for pivotally supporting the locking shaft 48. Was. However,
The structure of the fitting member 40 itself is complicated, and the interior of the fitting member 40 also complicates the structure of the entire leg, which is one of the factors that complicates the manufacturing and assembly work.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a leg for home nuggets capable of reducing the number of parts, simplifying the structure, improving the efficiency of manufacturing and assembling work, and reducing the cost.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, a home diaper leg according to the present invention is provided with an inner cylinder, which is slidably fitted to the inner cylinder and has a bottom surface. And a sliding outer cylindrical body serving as a bottom surface of the leg for a telescopic home nugget, comprising a locking groove having a plurality of upper and lower horizontal locking portions and fixed inside the outer cylindrical body. An oscillating body pivotally supported by the provided horizontal pivot shaft;
A horizontal locking shaft fixed to the inside of the inner cylindrical body and removably locked to the locking portion; and the rocking body by operating the operating portion exposed to the outside from the concave portion on the bottom surface of the leg. And an operating member for unlocking the locking shaft. The operating member is mounted directly on the peripheral wall of the inner cylindrical body. .

Further, the operating member and the oscillating body are integrated. Further, both ends of the locking shaft are fitted and attached to through holes formed in a peripheral wall of the inner cylindrical body. The upper surfaces of both ends of the locking shaft horizontally mounted on the peripheral wall abut on the lower end of a longitudinal load supporting rib provided on the peripheral wall or on a stepped portion. Further, the inner cylindrical body is elastically deformed so as to expand in one radial direction in a transverse cross section, the locking shaft is inserted into the inner cylindrical body, and both ends of the locking shaft are restored by the restoring force of the elastic deformation. The part is directly attached to the peripheral wall of the inner cylinder.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments.

FIG. 1, FIG. 2, and FIG. 3 are a sectional side view, a sectional front view, and a principal part sectional plan view showing an embodiment of a home diaper leg according to the present invention. The leg is a plastic telescopic leg that has an inner cylinder 1 and a slide outer cylinder 2 that is slidably fitted to the inner cylinder 1 along the longitudinal direction.

An oscillating body 16 is provided in the inside of the leg and has a locking groove 15 and is pivotally supported by a column-shaped pivot shaft 17 fixed inside the outer cylinder 2, and an inner cylinder. A horizontal locking shaft 20 fixedly mounted inside the lock member 1 and removably locking the locking portion 14 of the locking groove 15 of the rocking body 16, and an operating member 28 provided at a lower portion of the rocking body 16. And are provided.

The inner cylindrical body 1 has a peripheral wall 3 having a lower opening.
And a raised portion 4 protruding from the upper wall 5 of the peripheral wall 3. Then, the raised portion 4 is attached to a kotatsu main body (not shown) with bolts or the like.

The cross section of the peripheral wall 3 of the inner cylinder 1 and the peripheral wall 11 of the outer cylinder 2 is substantially D-shaped (as shown in FIG. 3), and the peripheral wall 3 and the peripheral wall 11 are curved. Part 9a and flat part 10a
And a curved portion 9b and a flat portion 10b. And, on the outer surface of the curved portion 9a and the flat portion 10a of the inner cylinder 1,
A plurality of narrow grooves 6a are formed (in the longitudinal direction of the peripheral wall 3). Also, the curved portion 9b and the flat portion of the outer cylinder 2
On the outer surface of 10b, a plurality of narrow grooves 6b are formed at positions corresponding to the narrow grooves 6a, respectively. Further, the inner cylindrical body 1 is provided on the inner surfaces of the curved portion 9b and the flat portion 10b of the outer cylindrical body 2.
Are formed to engage with the narrow grooves 6a. In addition, the ridge 7 has a plurality of narrow grooves 6a (as shown in the figure).
May correspond to some or all of them, but it is preferable that the position is provided at the upper end of the outer cylinder 2.

The inner cylindrical body 1 is provided with a pair of longitudinal load supporting ribs 8, 8 from the upper wall 5 of the peripheral wall 3 on the left and right inner surfaces of the curved portion 9a of the peripheral wall 3. And a flat portion 10a near the center of the curved portion 9a.
Similarly, two pairs of longitudinally extending ribs 8a are provided from the upper wall 5 to the vicinity of the center of the peripheral wall 3 so as to face each other. The load supporting ribs 8, 8 are thicker than the ribs 8a, are provided up to the lower end of the peripheral wall 3, and have stepped portions 13, 13 at the lower portion. And the support ribs 8,
Below the stepped portions 13 of FIG. 8, the width is narrow, and the guide projections 12 are formed.

Next, the outer cylinder 2 includes a cylinder 2a and a lid 2b for covering a lower opening of the cylinder 2a.
The bottom surface of the lid 2b, that is, the bottom surface of the outer cylinder 2, is the bottom surface 23 of the kotatsu leg. The bottom surface of the lid 2b has a concave portion 24, and a rectangular through hole is formed in an upper wall 25 at the back of the concave portion 24.
25a are formed. On the upper surface of the lid 2b, a pair of right and left rising walls 26, 26 provided with ribs 26a, 26a extending downward are provided upright. And the rising wall
At the upper ends of 26 and 26, through holes 27 and 27 are provided. A metal column-shaped pivot shaft that pivotally supports the rocking body 16 is provided in the through holes 27 and 27.
17 is inserted and fixed horizontally to the rising walls 26, 26.

The swing member 16 having the locking groove 15 (through which the locking shaft 20 is inserted) is provided on the outer cylinder 2 with the pivot shaft 17 (fixed inside the outer cylinder 2). Mounted through.
The oscillating body 16 is pivotally supported via a pivot shaft 17, and its substantially E-shaped locking groove 15 has a linear guide groove 15a and a plurality of upper and lower stages (upper, middle, lower). Are provided. The lower part at the rear end of the locking portions 14 is rounded, and has a shape in which the locking shaft 20 can be easily locked. In addition, a semicircular recess 18 is formed in the guide groove 15a located in the middle locking portion 14, so that the position of the middle locking portion 14 (when the leg is set to the medium size state) can be determined. Is provided.

The oscillating body 16 has a flat plate portion as its main body.
Ribs 19 protruding along the outer peripheral edge on both left and right sides of 21
a, 19 a and ribs 19 b, 19 b protruding along the outer peripheral edge of the locking groove 15. In addition, rib 19
A plurality of ribs for reinforcement are also provided between a and the rib 19b. The pivot shaft 17 is inserted through a hole 22 formed in the lower part of the rocking body 16.

The lower end of the oscillating body 16 has the outer cylinder 2
An operation member 28 having an operation portion 28a exposed to the outside from the through hole 25a of the lid 2b is integrally provided, and a swing operation from the outside of the swing body 16 is performed. It is possible to swing around the axis. This operating member 28
Connects the hooking projection 30a protruding from the rib 30 attached to the front surface thereof to the wall plate 31 erected on the lid 2b.
A resilient member 29 is resiliently urged forward (forward), and a flange 62 for hiding the inside of the leg is provided horizontally below the hooking projection 30a. The operating member 28 is an oscillating body.
Although the case where the number of components is reduced by being integrally molded with the component 16 is illustrated, other components may be fixed.

As shown in FIG. 4, the rocking body 16 having a U-shaped hanging wall plate 32 at the lower end is connected to a vertical operating member 28.
May be configured to swing by a downward operation. That is, when the operating member 28 slides downward (by operating the operating portion 28a) on the hanging wall plate 32 passed through the one-character insertion hole 34 of the operating member 28, the hanging wall plate 32 In the direction B), the rocking body 16 rocks around the pivot 17. The operating member 28 is a rib attached to the hanging wall plate 32.
A resilient member (such as a tension spring) 29 that connects the hook 32a and the hooking protrusion 33 attached to the operation member 28 is elastically urged upward.

Next, FIGS. 5A to 5D show the shape of the locking shaft 20. FIG. As shown in the partially cutaway front view of FIG. 1 (a), the locking shaft 20 includes a metal cylindrical shaft 35 and the cylindrical shaft 35.
The hollow locking members 36, 36 made of plastic are fitted to both ends of the. The locking member 36 has a rectangular cylindrical shape, and is notched from its tip to the end surface 52 of the shaft 35, and has a bifurcated shape formed by cutting along the upper surface 51 of the shaft 35 to form a groove 36a. It has convex portions 37,37. That is, as shown in the plan view (b), the bottom view (c), and the side view (d) of FIG.
Upper surfaces 51, 51 and both end surfaces 52, 52 of both ends 38, 38 of 35 are exposed to the outside, and a lower surface of the shaft body 35 is externally fitted to the locking member 36 and cannot be seen from the outside.

FIG. 6 shows through holes 53, 53 for attaching the convex portions 37, 37 of both ends 38, 38 of the locking shaft 20. The through holes 53, 53 have their upper ends located at the stepped portions 13, 13 of the load supporting ribs 8, 8 (provided on the peripheral wall 11 around the outer cylinder 2). Peripheral wall 3 adjacent to left and right
Is pierced. The size and shape of the through-hole 53 correspond to the protrusion 37 of the locking shaft 20. Further, as is apparent from FIG. 6, the stepped portion 13 of the support rib 8 is formed in a round concave surface equal to the radius of the cylindrical shaft 35.

Then, the inner cylindrical body 1 is elastically deformed so as to expand in one radial direction in the transverse section, and the locking shaft 20 is inserted into the inner cylindrical body 1. That is, the flat portion 10a of the lower opening of the peripheral wall 3 of the inner cylindrical body 1 and the center of the curved portion 9a are pressed so as to draw each other (in the direction of the arrow in FIG. 3), and the cross section in FIG. As shown in FIG. 7, the distance between the guide projections 12, 12 of the pair of load support ribs 8, 8 is made larger than the length L of the locking shaft 20, as shown in FIG. ─
That is, by expanding the above-mentioned interval dimension by elastic deformation of the plastic, the guide protrusion pieces 12 are engaged with the grooves of both ends 38, 38 of the locking shaft 20.
Fit into 36a, 36a. Then, the elastically deformed inner cylinder 1
By the restoring force, both end portions 38, 38 of the locking shaft 20 are pressed from the left and right. When the protrusions 37, 37 of the locking shaft 20 are raised while sliding on the inner surface of the peripheral wall 3, the protrusions 37, 37 are automatically dropped (fitted) into the through holes 53, 53, and The stop shaft 20 is directly mounted horizontally on the peripheral wall 3 of the inner cylinder 1 (see FIG. 2).

At this time, the upper surfaces of both ends 38, 38 of the locking shaft 20
51, 51 (the upper surfaces 51, 51 of the exposed shaft body 35) abut against the concave curved surfaces of the stepped portions 13, 13 of the load supporting ribs 8, 8. The protrusion of the convex portion 37 is substantially equal to the thickness of the peripheral wall 3 and has a cylindrical shaft body.
The length dimension of 35 is set substantially equal to the interval dimension between the pair of guide projection pieces 12,12. The locking shaft 20 is previously inserted into the swinging body 16 connected to the lid 2b via the pivot shaft 17 (as indicated by the phantom line in FIG. 7). By being attached to the wall 3, it is integrated with the inner cylinder 1, and the subunit is inserted into the lower opening of the outer cylinder 2 from the upper end side of the inner cylinder 1 and assembled.

Thus, the outer cylinder 2 externally fitted to the inner cylinder 1
In order to slide the legs of the present invention from the short state to the long state by sliding the operating member, as shown in FIG.
28 Pull the operating part 28a in the direction of the arrow A, and swing the rocking body 16 (the pivot shaft).
(Around the 17 axis). Then, the guide groove 15a of the locking groove 15 is changed from the inclined state to the vertical state, and the locking shaft 20 is disengaged from the lower locking part 14 (lock is released).

Then, as shown in FIG. 9, when the outer cylinder 2 is slid downward (until it cannot be pulled) fully while the operating portion 28a is pulled (in the direction of arrow A), the locking shaft
20 can be located above the guiding groove 15a. At this time, since the ridges 7 provided on the inner surface of the outer cylinder 2 are engaged with the narrow grooves 6a provided on the outer surface of the inner cylinder 1, the outer cylinder 2 can be slid smoothly. Can be.

When the operating portion 28a is released, as shown in FIG. 10, the operating member 28 is pulled back by the resilient member 29, and the guide groove 15a of the rocking body 16 returns to the inclined state. At the same time, the locking shaft 20 is locked to the upper locking portion 14 so that the legs can be locked in the elongated state.

To change the leg from the long state to the medium state, the locking shaft 20 is detached from the upper locking section 14 by the operating section 28a, and the operating section is slid upward by sliding the outer cylinder 2 upward. When the lock 28a is released, the lock shaft 20 slides in the guide groove 15a and automatically locks on the lock 14 in the middle stage. Alternatively, even if the outer cylindrical body 2 is slid while the operation portion 28a is pulled, the locking shaft 20 hits the corner of the guide groove portion 15a recessed portion 18 and thereby the position of the middle locking portion 14 can be determined. By releasing the operation portion 28a, the locking shaft 20 can be locked (to the locking portion 14 in the middle stage), and the legs can be locked in the medium size state. The same is true for changing the legs from the short state to the long state.

FIG. 11 shows another embodiment of the locking shaft 20, and FIG. 11 (a) has the same shape as that described above, but is formed integrally with metal or glass fiber. This is molded integrally with the mixed synthetic resin.
Is simply a metal cylinder.

In the case of the locking shaft 20 shown in FIG. 11 (b), as shown in FIG. 12, the guide projections 12, 12 below the load supporting ribs 8, 8 provided on the inner cylindrical body 1 become unnecessary, and the supporting ribs are not required. 8,8 lower end
13a, 13a are determined as the vertical height of the stepped portions 13, 13 shown in FIG. Then, circular through holes 56 (corresponding to the columnar locking shaft 20) are formed in the peripheral wall 3 at the positions of the lower ends 13a, 13a.
Form 56. Then, the inner cylinder 1 is elastically deformed, and the locking shaft 20 is slid on the inner surface of the inner cylinder 1 to be fitted into the through holes 56. At this time, both end portions 38, 38 of the locking shaft 20 upper surface 51, 51
Contact the lower ends 13a, 13a of the load supporting ribs 8, 8 (having a concave curved surface when viewed from the axial direction of the locking shaft 20). Also,
Since both end surfaces 57, 57 of the locking shaft 20 fitted in the through holes 56, 56 are blocked by the outer cylinder 2, the locking shaft 20 does not come out to the outside.

The lengths of the inner cylinder 1 and the outer cylinder 2 are as follows:
The external shape and the like are not limited to the above-described embodiment, and the design can be freely changed without departing from the gist of the present invention. Also,
The number of steps of the locking portions 14 of the locking groove 15 can be freely increased or decreased.

[0029]

Since the present invention is configured as described above, the following effects can be obtained.

Since the locking shaft 20 can be directly attached to the peripheral wall 3 of the inner cylinder 1 (according to the first aspect of the present invention), a conventionally required component (see FIG. 13) The need for the fitting member 40) is eliminated, the structure inside the leg is simplified, manufacturing and assembly are facilitated, and work efficiency is improved.
The number of parts can be reduced and cost can be reduced. (According to the second aspect of the present invention), manufacturing and assembling can be further facilitated, work efficiency can be improved, and the number of parts can be reduced to reduce costs. By using the elastic deformation of the inner cylindrical body 1 (according to the third aspect of the present invention), the through holes 53, 53 are provided.
Since the locking shaft 20 can be directly and reliably mounted on the peripheral wall 3 having the above, the mounting structure can be simplified and the number of parts can be reduced. Therefore, it is easy to assemble, the work efficiency is improved, and the cost can be reduced. When the heavy load is applied to the top of the kotatsu (according to claim 4), the support ribs 8, 8 receive both ends of the locking shaft 20, so that the surface pressure can be reduced. As a result, it is possible to reliably and sufficiently support the structure with a relatively simple structure.

[Brief description of the drawings]

FIG. 1 is a sectional side view showing an embodiment of the present invention.

FIG. 2 is a sectional front view.

FIG. 3 is a sectional plan view of a main part.

FIG. 4 is a cross-sectional side view showing another embodiment.

FIG. 5 is an explanatory view showing the shape and configuration of a locking shaft.

FIG. 6 is an explanatory diagram showing positions and shapes of through holes.

FIG. 7 is a cross-sectional view of a main part showing a mounting state of a locking shaft.

FIG. 8 is a cross-sectional side view showing a state where an operation member is operated.

FIG. 9 is a cross-sectional side view showing a state where the outer cylinder is slid.

FIG. 10 is a cross-sectional side view showing a state where a leg is extended.

FIG. 11 is a configuration explanatory view showing another embodiment of the locking shaft.

FIG. 12 is a cross-sectional view of a main part showing a state where a cylindrical locking shaft is attached.

FIG. 13 is a sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Inner cylinder body 2 Slide outer cylinder body 3 Perimeter wall 8 Load support rib 13 Stepped portion 13a Lower end 14 Locking portion 15 Locking groove 16 Oscillator 20 Locking shaft 23 Leg bottom 24 Depressed portion 28 Operating member 28a Operating portion 38 End 51 Top 53 Through Hole

Claims (5)

(57) [Claims] 1. A telescoping home nugget having an inner cylinder 1 and a slide outer cylinder 2 slidably fitted to the inner cylinder 1 and having a bottom surface 23 as a leg bottom 23. The leg is provided with a locking groove 15 having a plurality of upper and lower horizontal locking portions 14... And is pivotally supported by a horizontal pivot shaft 17 fixed inside the outer cylindrical body 2. Oscillating body 16, a horizontal locking shaft 20 which is fixed inside the inner cylindrical body 1 and is removably locked to the locking portions 14..., And a concave concave portion 24 of the leg bottom surface 23. An operating member 28 that releases the lock on the locking shaft 20 by swinging the rocking body 16 by operating the operating portion 28a exposed to the outside;
And the locking shaft 20 provided in the inner cylinder 1 is directly attached to the peripheral wall 3 of the inner cylinder 1. 2. The leg for a home trowel according to claim 1, wherein said operating member 28 and said rocking body 16 are integrated. 3. The home according to claim 1, wherein both ends of the locking shaft are fitted into through holes formed in the peripheral wall of the inner cylindrical body. Legs for diapers. 4. Upper surfaces 51, 51 of both ends 38, 38 of the locking shaft 20 mounted horizontally on the peripheral wall 3 are provided with longitudinal load supporting ribs 8, 8 provided on the peripheral wall 3. Lower end 13 of 8
The home leg according to claim 1, 2 or 3, which abuts on the step (a) or the stepped portion (13). 5. An inner cylinder 1 is elastically deformed so as to expand in one radial direction in a transverse section, and a locking shaft 20 is inserted into the inner cylinder 1 to restore the elastic deformation. At both ends 3 of the locking shaft 20
5. The leg for a home nugget according to claim 1, wherein said 8, 8 and 38 are directly attached to the peripheral wall 3 of said inner cylinder 1.