JP2834697B2 - 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 FIGS. 13A and 13B, an outer cylinder 43 connected to another member 50 attached to a kotatsu main body.
And an inner cylinder 42 slidably inserted into the outer cylinder 43.
A conventional home diaper leg provided with a rocking body 45 having a substantially U-shaped locking groove 44 inside the leg and pivotally supported by a pivot 46, A locking shaft 48 fixedly mounted on the locking member 43 and removably locking the locking portions 44a, 44a of the locking groove 44, and a V-shaped hanging protruding plate provided below the rocking body 45 by sliding downward. An operating member 49 that slides on 47 and swings the rocking body 45 to release the locking on the locking shaft 48 is provided.

[0003]

A pair of rising walls 2 provided with ribs 26a, 26a from the lower portion thereof are provided inside the inner cylindrical body 42.
6, 26 are standing. And the rising walls 26, 26
Was necessary to fix the pivot 46 to the inner cylinder 1. However, the provision of the rising walls 26, 26 complicates the structure of the inner cylindrical body 42, which is one of the reasons that the manufacturing and assembly work is troublesome.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a home diaper leg that can simplify the structure, reduce the number of parts, improve the efficiency of manufacturing and assembling work, and reduce the cost. .

[0005]

In order to achieve the above-mentioned object, a leg for a home diaper according to the present invention is provided with an outer cylinder, which is slidably inserted into the outer cylinder, and whose bottom surface is a foot sole. A telescoping leg for a home garment having a sliding inner cylindrical body serving as a surface, and having a locking groove having a plurality of upper and lower horizontal locking portions and swingable by a horizontal pivot shaft. A rocking body pivotally supported by the outer cylindrical body, a horizontal locking shaft fixed to the inside of the outer cylindrical body and lockingly detachable to the locking portion, and exposed to the outside from the concave portion on the bottom surface of the leg. An operating member for releasing the locking to the locking shaft by swinging the rocking body by operating the operating unit, wherein a pivot shaft provided inside the inner cylindrical body is provided around the inner cylindrical body. It is directly mounted on the wall.

Further, the operating member and the oscillating body are integrated. Further, both ends of the pivot shaft are inserted into and attached to through holes formed in a peripheral wall of the inner cylindrical body. The lower surfaces of both ends of the pivot shaft mounted horizontally on the peripheral wall abut on upper ends of longitudinal load supporting ribs provided on the peripheral wall or on stepped portions. Further, the inner cylindrical body is elastically deformed so as to expand in one radial direction in a transverse cross section, the pivot shaft is inserted into the inner cylindrical body, and both ends of the pivot 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 legs are plastic stretchable kotatsu legs including an outer cylinder 2 and a slide inner cylinder 1 slidably inserted into the outer cylinder 2 along the longitudinal direction.

An oscillating body 16 is provided inside the leg and has a locking groove 15 and is pivotally supported by a horizontal pivot shaft 17 fixed inside the inner cylinder 1, and an outer cylinder 2. A locking shaft 20 fixed to the inside of the rocking body 16 and removably locked to the locking portion 14 of the locking groove 15 of the rocking body 16, an operating member 28 provided at the lower part of the rocking body 16,
Is provided.

The outer cylinder 2 has a peripheral wall 11 having a lower opening.
And a bulge 4 protruding from the upper wall 5 of the peripheral wall 11. The curved portion 4 has a connection hole 4a for connecting to another member (not shown) attached to the kotatsu main body.

Further, on the upper part of the outer cylinder 2 (peripheral wall 11),
A fitting member 40 having a pair of hanging projecting walls 41, 41 provided with ribs 41a, 41a is provided therein, and the fitting member 40 is attached to the upper wall 5 with screws 39, 39. A pair of hanging walls 41, 41
Through holes 61, 61 are formed at the lower end of the base, and the metal cylindrical locking shaft 20 is fixed to the hanging protruding walls 41, 41 through the through holes 61, 61.

The cross-sectional shapes of the peripheral wall 11 of the outer cylinder 2 and the peripheral wall 3 of the inner cylinder 1 (as shown in FIG. 3) are substantially D, respectively.
The peripheral wall 11 and the peripheral wall 3 have a curved portion 9b and a flat portion 10b, and a curved portion 9a and a flat portion 10a, respectively. The center of the curved portion 9a and the flat portion 10a of the peripheral wall 3
Are formed with a plurality of narrow grooves 6a in the longitudinal direction. The curved portion 9b and the flat portion 10
Also on the outer surface of b, a plurality of narrow grooves 6b are formed at positions corresponding to the narrow grooves 6a, respectively. Further, short ridges 7 are formed on the inner surfaces of the curved portion 9b and the flat portion 10b of the outer cylinder 2 so as to engage with the narrow grooves 6a of the inner cylinder 1.
The protruding ridges 7 are provided with a plurality of narrow grooves 6a (as shown in the example).
May correspond to some or all of them, but it is preferable that the position is provided at the lower end of the outer cylinder 2.

The inner cylindrical body 1 is provided with a pair of longitudinal load supporting ribs 8 on the left and right inner surfaces of the curved portion 9a of the peripheral wall 3 from the bottom wall 58 of the peripheral wall 3 so as to face each other. At the same time, near the center of the curved part 9a and the flat part 10a,
Similarly, two pairs of longitudinally extending ribs 8a are provided from the bottom wall 58 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 upper end of the peripheral wall 3, and have stepped portions 13, 13 near the center thereof. And the support ribs 8,
The width from above the stepped portions 13 of FIG.

At the lower end of the outer surface of the peripheral wall 3 of the inner cylindrical body 1, a stepped portion 59 is provided along the circumferential direction. 60 comes into contact with the stepped portion 59, and the peripheral wall 3 is completely inserted into the outer cylindrical body 2. A recess 24 is formed in the bottom wall 58 of the inner cylindrical body 1 which is the leg bottom surface 23, and a rectangular through hole 25 is formed in the upper wall 25 behind the recess 24.
a is formed.

Thus, the swinging body 16 having the locking groove 15 (through which the locking shaft 20 is inserted) is provided in the inner cylinder 1 with the pivot shaft 17 (fixed inside the inner cylinder 1). Mounted through.
The oscillating body 16 is pivotally supported by 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 horizontal (upper, middle, lower) horizontal sections. . 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.

Thus, the lower end of the oscillating body 16 is provided with the inner cylindrical body 1.
An operating member 28 having an operating portion 28a exposed to the outside from the through hole 25a of the concave portion 24 is provided integrally, and a swing operation from the outside of the rocking body 16 is performed by connecting the rocking body 16 to the pivot shaft 17. It is possible to swing around the axis. This operating member 28
Is a resilient (such as a tension spring) connecting a hooking projection 30a projecting from a rib 30 attached to the front surface thereof and a hooking projection 31 projecting from the peripheral wall 3 of the inner cylinder 1. The member 29 is elastically urged forward (toward the front) and the hooking projection 30a
A flange 62 for hiding the inside of the leg is provided horizontally at the lower part of the leg. Although the operating member 28 is formed integrally with the oscillator 16 to reduce the number of components, the operating member 28 may be fixed as a separate component.

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 5B show the shape of the pivot shaft 17. FIG. As shown in the partially cutaway front view of FIG. 1 (a), the pivot shaft 17 is made of 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 is a rectangular cylinder, 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 lower surface 51 of the shaft 35 to form a groove 36a. It has convex portions 37,37. That is, as shown in the bottom view of FIG. 2B, the plan view of FIG. 3C, and the side view of FIG.
The lower surfaces 51, 51 and both end surfaces 52, 52 of both ends 38, 38 of 35 are exposed to the outside, and the upper surface of the shaft 35 is externally fitted to the locking member 36 and cannot be seen from the outside.

FIG. 6 shows through holes 53 for mounting the convex portions 37 of both ends 38 of the pivot shaft 17. As shown in FIG. The lower ends of the through holes 53 are located at the stepped portions 13 of the load supporting ribs 8 (provided on the peripheral wall 3 of the inner cylindrical body 1). 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 pivot shaft 17. 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 pivot shaft 17 is inserted into the inner cylindrical body 1. In other words, the flat portion 10a of the upper 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 as shown 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 pivot shaft 17, as shown in FIG. ─
That is, by expanding the above-mentioned spacing dimension by elastic deformation of the plastic, the guiding projection pieces 12, 12 are grooved at both ends 38, 38 of the pivot shaft 17.
Fit into 36a, 36a. Then, the elastically deformed inner cylinder 1
With the restoring force, both end portions 38, 38 of the pivot shaft 17 are pressed from the left and right. When the projections 37, 37 of the pivot shaft 17 are lowered while sliding on the inner surface of the peripheral wall 3, the projections 37, 37 are automatically dropped (fitted) into the through holes 53, 53, and The support shaft 17 is directly mounted horizontally on the peripheral wall 3 of the inner cylinder 1 (see FIG. 2).

At this time, the lower surfaces of both ends 38, 38 of the pivot shaft 17
51, 51 (the lower 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 projection 37 is substantially equal to the thickness of the peripheral wall 3, and the length of the shaft 35 is set to be substantially equal to the interval between the pair of guide protrusions 12. Note that the pivot shaft 17 is inserted and connected to the rocking body 16 connected to the fitting member 40 via the locking shaft 20 in advance (as shown by the phantom line in FIG. 7). 17
Of the inner cylinder 1 by being attached to the peripheral wall 3, 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 inner cylinder 1 inserted into the outer cylinder 2
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 inner cylinder 1 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 inner cylinder 1 is 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 removed from the upper locking part 14 by the operating part 28a, and the operating part is slid while the inner cylinder 1 is slid 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 inner cylindrical body 1 is slid while the operation portion 28a is pulled, the locking shaft 20 hits the corner of the recess 18 of the guide groove 15a, whereby the position of the middle locking portion 14 can be known. Operation unit 28a at position
By releasing the lock, the locking shaft 20 can be locked (to the locking portion 14 in the middle stage), and the legs can be locked in a medium size state. The same applies to changing the leg from the short state to the medium state.

FIG. 11 shows another embodiment of the pivot shaft 17, which is a metal column. In the case of the pivot shaft 17, as shown in FIG. 12, the guide projections 12, 12 on the load support ribs 8, 8 provided on the inner cylindrical body 1 become unnecessary, and the upper ends 13a, 13a of the support ribs 8, 8 become unnecessary. To the stepped portion 1 shown in FIG.
Determine the vertical height of 3, 13. And the upper end 13a, 1
Circular through holes 56 (corresponding to the cylindrical pivot shaft 17) are formed in the peripheral wall 3 at the position 3a. Then, the inner cylinder 1
Is elastically deformed, and the pivot shaft 17 is slid on the inner surface of the inner cylindrical body 1 to be fitted into the through holes 56. At this time, both end portions 38 of the pivot shaft 17 and the lower surface 51 of the 38
Upper surface 13a, 13a which has a concave curved surface when viewed from the axial direction of 20)
Abut. Further, since both end faces 57, 57 of the pivot shaft 17 fitted into the through holes 56, 56 are blocked by the peripheral wall 11 of the outer cylinder 2, the pivot shaft 17 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 pivot shaft 17 can be directly attached to the peripheral wall 3 of the inner cylinder 1 (according to the first aspect of the present invention), the structure is simplified, and the manufacture and assembly are facilitated. Work efficiency is improved. (According to the second aspect of the present invention), the number of parts can be reduced and cost can be reduced, the structure can be simplified, manufacturing and assembly can be facilitated, and work efficiency can be improved. 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 pivot shaft 17 can be directly and reliably attached to the peripheral wall 3 having the above, the attachment 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 the fourth aspect of the present invention), both ends of the pivot shaft 17 are applied by the support ribs 8, 8, 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 pivot 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 mounted state of a pivot 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 inner 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 pivot shaft.

FIG. 12 is a sectional view of a main part showing a state where a column-shaped pivot shaft is attached.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Slide inner cylinder body 2 Outer cylinder body 3 Peripheral wall 8 Load support rib 13 Stepped portion 13a Upper end 14 Locking portion 15 Locking groove 16 Oscillator 17 Pivot shaft 20 Locking shaft 23 Leg bottom 24 Concave recess 28 Operation Member 28a Operation part 38 End 51 Lower surface 53 Through hole

Claims (5)

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