JP2889742B2 - 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 diaper.

[0002]

2. Description of the Related Art Conventional telescopic legs for home diapers have an inner cylinder and an outer cylinder which are slidable with each other, and the inner and outer cylinders are fixed by a locking mechanism using screws or pins. They were locked so that they could be held in an extended state and a contracted state, respectively. In some cases, a locking mechanism is provided inside the inner and outer cylinders.

[0003]

However, in the conventional leg, the locking mechanism is extremely complicated, and the manufacturing is troublesome and easily broken. In addition, the operation is troublesome, and the extension and contraction of the legs cannot be performed easily.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a home diaper leg which can be easily and quickly expanded and contracted, and which does not have a complicated overall structure.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a leg for a home diaper comprising a leg body and a slide cylinder slidably mounted on the leg body along a longitudinal direction, wherein the leg is provided in a vertical direction. A locking groove having a linear portion and a plurality of locking portions communicating orthogonally to the linear portion is provided in the leg body,
A horizontal groove is provided in the slide cylinder, and an operating body having an inclined guide groove is slidably provided in the slide cylinder, and a locking pin is slidably held in the horizontal groove, and The pin is guided and guided by the inclined guide groove so as to be able to move in the engaging groove so as to pass through the engaging groove and the inclined guide groove, and furthermore, urges the operating body upward to urge the operating body upward. A resilient member for locking the locking pin to the locking portion of the locking groove is interposed between the operating body and the slide cylinder.

[0006]

[0007]

[Action] An engaging / disengaging operation is performed from the lower surface of the leg. With this engagement / disengagement operation, the locking pin moves to the locking portion inside the leg body 1.
It can be disengaged and stretched and fixed.

When the locking pin is located at the locking portion of the locking groove, the operating body is elastically urged upward by the elastic member, and the locking pin is moved through the inclined guide groove of the operating body. The leg is locked to the other end (opposite to the linear portion) of the locking portion, and this locked state is maintained, and the leg body and the slide cylinder are locked without sliding each other.

Further, when the operating body is pulled from the locked state, the locking pin is guided and guided by the inclined guide groove to be disengaged from the locking portion and enter the linear portion, whereby the slide cylinder can slide. .

Therefore, normally, the locking pin is locked in one of the locking portions of the locking groove by the resilient force of the resilient member, and the locked state is maintained, and the operating body is moved downward. When pulled, the locked state is released and the slide becomes possible.

[0011]

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

FIGS. 1 and 2 show a leg for a home diaper according to the present invention. The leg comprises a leg body 1 and a slide cylinder 2 slidably mounted on the leg body 1 along the longitudinal direction.
And

The leg body 1 has a cylindrical portion 3 having a lower opening and a raised portion 5 projecting from the upper wall 4 of the cylindrical portion 3.
The lid member 6 is attached to the ridge 5. The protruding portion 5 includes front and rear walls 5a and 5b, an inner wall 5c, and a curved wall 5d continuously provided from the upper end of the inner wall 5c to the upper wall 4 of the cylindrical portion 3.

Further, the leg body 1 has a core 19 which is mounted in the raised portion 5 of the leg body 1.

The core 19 has a fitting portion 20 fitted to the protruding portion 5 and a fixing tool 21 such as a screw on the upper wall 4 of the cylindrical portion 3 of the leg body 1.
And a pair of front and rear hanging walls 24, 24 suspended from the fitting portion 20.
Locking grooves 7, 7 are provided at the lower end of 24, respectively.
Reference numerals 26, 26 denote ribs connected to the hanging walls 24, 24 and the mounting portions 23, 23, respectively.

The locking groove 7 has a vertical linear portion 17.
And a plurality of locking portions which are connected to the linear portion 17 in an orthogonal manner.
In the illustrated example, the locking portions 18 are connected to both ends and the center of the linear portion 17, respectively, to form a substantially E-shape.

Thus, the slide cylinder 2 has an upper opening shape, and a concave wall 28 is formed on the bottom wall 27. A pair of front and rear rising walls 29 are formed on the concave wall 28 to the bottom wall 27. , 29 are erected. In the upper part of the rising walls 29, 29, horizontally long horizontal grooves 30, 30 are provided, and the locking pins 9 are slidably held in the horizontal grooves 30, 30 in the horizontal direction. 29
a, 29a, 31, 31 are ribs attached to the rising walls 29, 29.

On the opposing surfaces of the upper ends of the rising walls 29, 29, there are vertically provided grooves 32, 32 for slide guides.
Lateral rods 13, 13 of an operating body 33 described later are slidably fitted in the concave grooves 32, 32.

The operating body 33 is provided on the bottom wall 27 of the slide cylinder 2.
The operation body 33 is provided with a finger engaging portion 36 formed of a through hole at the lower end of the operating body 33 through an insertion hole 34 formed through the finger engaging portion. A rectangular through-hole 37 is formed in the upper part of the through-hole. The operating body 33 is slidable in the longitudinal direction along the concave grooves 32, 32, and the finger engaging portions 36 are exposed to the outside through the insertion holes 34.

Further, the operating body 33 includes a flat main body 10,
Ribs 11 projecting forward and backward along both side edges of the main body 10.
And ribs 12, 12 projecting forward and backward along the periphery of the hole 10a of the main body 10, and horizontal rods 13, 13 projecting forward and backward at the upper end of the main body 10. An inclined guide groove 8 is formed by 10a and the ribs 12 and 12. 14 and 14 are ribs attached to the horizontal rods 13 and 13.

The locking pin 9 held in the horizontal grooves 30, 30 of the slide cylinder 2 is guided by the inclined guide groove 8 so as to be movable in the locking groove 7 so as to be movable in the locking groove 7. The guide groove 8 is inserted.

The operation body 33 and the slide cylinder 2
The operating body 33 is elastically urged upward to lock the locking pin 9.
A resilient member 38 for interlocking with the locking portion 18 of the locking groove 7 is interposed.

That is, a convex locking piece 39 is vertically provided at the lower end of the operating body 33, and a concave locking piece 40 is protruded at the top of the concave recess 28 of the slide cylinder 2. A resilient member 38 composed of a coil spring is interposed between both locking pieces 39 and 40.

The operating member 33 is elastically urged upward by the elastic member 38, and the locking pin 9 moves obliquely downward in the inclined guide groove 8, and as shown in FIG. The lock pin 9 is locked at the lower end of the lock 8, and this state is maintained.

Thus, as shown in FIG.
When the operating body 33 is pulled downward as shown by the arrow B against the resilient urging force, the locking pin 9 is guided and moved by the inclined guide groove 8, and the upper end of the locking groove 7 is locked. Removed from part 18, straight part
Enter 17. That is, by lowering the operating body 33, the locking pin 9 is moved obliquely upward in the inclined guide groove 8, and the locking pin 9 is moved in the direction of arrow A in the horizontal groove 30 and the locking portion 18. I have.

At this time, the operating body 33 tends to fall in the horizontal direction by the movement of the locking pin 9, but slides in the vertical direction without falling because the horizontal rod 13 of the operating body 33 is supported by the concave groove 32. it can.

When the operating body 33 is further pulled in the direction of arrow B from the state shown in FIG. 3, the locking pin 9 moves downward in the linear portion 17, and the locking pin 9 is locked in the horizontal groove 30. As a result, the slide cylinder 2 is pulled in the arrow B direction. Then, as shown in FIG.
It is brought to the center of 17 (one end of the central locking portion 18).

In this state, when the operation body 33 is released from being pulled in the direction of arrow B, the operation body 33 is elastically urged upward by the elastic member 38, and the locking pin 9 is guided to the inclined guide groove 8. It is guided and moves, disengages from the linear portion 17 of the locking groove 7, and enters the central locking portion 18. That is, by raising the operating body 33, the locking pin 9 is moved obliquely downward in the inclined guide groove 8, and the locking pin 9 is moved in the horizontal groove 30 and the locking portion 18 in the direction of arrow C. I have. And as shown in FIG.
The locking pin 9 is locked to the other end of the locking portion 18 of the locking groove 7.

Therefore, according to this leg, when a finger is hooked on the finger locking portion 36 of the operating body 33 from the state shown in FIG. Locking part of pin 9
4, the slide cylinder 2 can be extended to the elongated state as shown in FIG. 4, and in this state, the pulling of the operating body 33 in the direction of arrow B is released. If
As shown in FIG. 5, the locking pin 9 is locked to the locking portion 18 to be in a locked state.

Further, from this long state, the operating body 33 is moved by the arrow B.
After being pulled in the direction shown in FIG. 4, the lock cylinder 9 is released from the lock state, and the resilient urging force of the resilient member 38 prevents the locking pin 9 from being locked on the locking portion 18 again. The leg body 1
3, the locking pin 9 is positioned at the upper end of the linear portion 17 of the locking groove 7, as shown in FIG.

In this state, if the operating body 33 is in a free state, the locking pin 9 is moved through the inclined guide groove 8 to the resilient member 38.
As shown in FIG. 1, it is possible to lock to the locking portion 18 at the upper end so as to be in a locked state of a short state.

Further, the locking groove 7 is formed by the same operation as described above.
The locking pin 9 can be engaged with and disengaged from the locking portion 18 at the lower end of the slide cylinder 2, and the slide cylinder 2 can be brought into the locked state or the unlocked state. Therefore, the length of the leg can be freely changed in a plurality of steps, which is convenient.

As shown in FIG. 1, a stepped portion 44 is provided at the lower end of the peripheral wall 43 of the slide cylinder 2, and is provided in FIGS.
In the short state shown in FIG.
And the stepped portion 44 has a lower end surface 45 of the leg body 1.
Abuts.

The leg body 1 is pivotally attached to the lid member 6 via the pivot 46 so that the leg body 1 can be folded and unfolded. The folding and unfolding operation is performed by the operation mechanism M shown in FIGS. Can be done through

That is, the pivot 46 is held by a holding frame 47 fixed to the lid member 6 as shown in FIGS.
Through holes 48, 48 formed in the front and rear walls 20a, 20b of the fitting portion 20 of
Is inserted through. The holding frame 47 includes an upper wall 47a and front and rear walls.
47b, 47c and an inner side wall 47d.
A through hole for holding the pivot 46 is provided in 47c.

Accordingly, the leg body 1 can swing about the pivot 46, and can be deployed in the same straight line with respect to the lid member 6 as shown in FIG. As shown in the figure, the folded state may be substantially perpendicular to the lid member 6.

Thus, the operating mechanism M includes a swing member 49 that is swingably held by the holding frame 47, a resilient member 50 that presses one end of the swing member 49 toward the leg body 1, and In the state shown in FIG. 1, the swing of the leg body 1 is restricted.

That is, as shown in FIGS. 1 and 8, the swinging member 49 is fitted into a through hole 51 formed in the upper wall 47a of the holding frame 47, and has an inverted U-shaped cross section. Pressing portion 52, a tongue piece 53 protruding from the pressing portion 52, rising walls 54, 54 standing on the tongue piece 53, and an end portion rising through the rising walls 54, 54. A pivot shaft 55 protruding to the outside, and the end of the pivot shaft 55 is fitted into pivot recesses 56, 56 provided continuously with the through hole 51 of the upper wall 47 a. Therefore, the swing member 49 swings about the pivot shaft 55 as shown by arrows D and E in FIG.

The tip 53a of the tongue piece 53 is bent downward, and a groove 57 for holding one of the resilient members 50 is provided on the upper surface thereof.
And a ring-shaped groove 58 for holding the other of the resilient members 50 on the lower surface of the upper wall 6a of the lid member 6.
Accordingly, one end (that is, the tip 53 a) of the swing member 49 is constantly pressed toward the leg body 1 by the resilient member 50. A projection 67 is provided on the lower surface of the upper wall 6a of the lid member 6, and the projection 67 is in sliding contact with the pivot shaft 55 to prevent the swing member 49 from rattling.

The locking pieces 60, 60 project from the base end face 59 of the swinging member 49, and the upper end of the protruding portion 5 of the leg body 1 is provided in FIGS. As shown, a fitting portion 61 is formed in which the tip 53a of the tongue piece 53 of the swinging member 49 fits in a detachable manner. That is, the fitting portion 61 is formed by the rising wall 62, the front and rear walls 63a and 63b, and the flat upper end surface 64 of the raised portion 5.

Therefore, as shown in FIG. 1, in the unfolded state, the distal end 53a is fitted to the fitting portion 61, and the locking pieces 60, 60 are locked to the upper wall 47a of the holding frame 47. The expanded state is reliably maintained.

When the pressing portion 52 of the swinging member 49 exposed from the through hole 65 of the lid member 6 is pressed as shown by the arrow F from this state, the swinging member 49 pivots as shown in FIG. It swings around the support shaft 55 as shown by the arrow D, and the above-mentioned fitting and locking are released. Therefore, the swinging of the leg main body 1 becomes possible, and the folded state as shown in FIG. 10 can be achieved. In this folded state, the rising wall 62 forming the fitting portion 61 is locked in the locking recess 66 provided in the lid member 6.

Conversely, from the state shown in FIG.
1 in the developing direction, as shown in FIG. 1, the tip 53a is fitted to the fitting portion 61, and the locking pieces 60, 60 are locked to the upper wall 47a. It will be deployed. In FIGS. 1, 9, and 10, reference numeral 68 denotes a fixing tool such as a bolt for attaching the leg to the kotatsu main body. In the state shown in FIGS. 1 and 5, the operating body 33 does not protrude from the bottom wall 27 of the slide cylinder 2.

Next, FIGS. 11 and 12 show another embodiment.
At the upper end of the operating body 33, a pair of upper and lower engaging pieces 70 are provided so as to protrude forward and backward, and a plurality of vertically long engaging holes are formed in the hanging walls 24, 24 of the leg body 1.
Are formed at predetermined intervals in the vertical direction, and two locking pins 9, 9 are provided on the upper ends of the rising walls 29, 29 of the slide cylinder 2.
Are provided rotatably around the pivot pins 72, 72 (around the horizontal axis).

The locking pins 9, 9 are provided inside vertically elongated holes 73, 73 formed at the upper ends of the rising walls 29, 29. As shown in the example of FIG. 33 upper and lower engaging pieces 70
The operating body 33 is slidably mounted on the slide cylinder 2 so as to be engageable with the vertically long engaging holes 71 of the hanging walls 24, 24.

Then, the operating body 33 is elastically urged upward by an unillustrated elastic member 38 interposed between the slide cylinder 2 and the operating body 33, and as shown in FIG. 9, 9 is an operation body 33
Of the leg body 1 and the slide cylinder 2 are mutually slidable by being engaged with the lower engagement pieces 70, 70 and the lower ends of the vertically long engagement holes 71, 71 of the hanging walls 24, 24. It will be in a locked state without any.

Further, from the state shown in FIG.
12, the locking pins 9, 9 are engaged with the upper engaging pieces 70, 70 of the operating body 33, as shown in FIG.
It rotates around 2,72 and the locking pins 9, 9
As a result, the slide cylinder 2 is slidable.

Then, the slide cylinder 2 is slid to any of the vertically long engagement holes 71, 71 in the unlocked state by the operation body 33 to make the slide cylinder 2 long, and in this state, the operation body 33 is moved in the direction of arrow B. When the tension is released, the locked state is established as shown in FIG. Further, in order to reduce the length, the slide cylinder 2 is pushed into the leg body 1 while the lock is released by the operating body 33, and the pulling of the operating body 33 in the direction of arrow B may be released.

FIGS. 13 to 15 show another embodiment, in which the upper part of the operating body 33 has a bifurcated shape, and a small inclined guide groove 76 is formed at the upper end of the operating body 33. The hanging wall 24 of the body 1
24, a plurality of locking holes 75 are formed at predetermined intervals in the vertical direction, and further, sliding holes 74, 74 are provided through the upper ends of the rising walls 29, 29 of the sliding cylindrical body 2, so that two The locking pins 9, 9 are slidably held in the sliding holes 74, 74.

The small inclined guide grooves 76 are provided in the upright wall portions 33a of the operating body 33 in a substantially C-shape. Further, the locking pin 9 has guide pins 77, 77 projecting orthogonally to the axial direction of the locking pin 9.

Further, as shown in the figure, the guide pins 77 of the locking pins 9, 9 are slidably held in the small inclined guide grooves 76 of the operating body 33, and the axes of the locking pins 9, 9 are slidable. Operating body 33 so that the part can be engaged with the locking holes 75, 75 of the hanging walls 24, 24.
Is slidably mounted on the slide cylinder 2.

Thus, the operating body 33 is elastically urged upward by the elastic member 38 interposed between the slide cylinder 2 and the operating body 33, and the guide pins 77 of the locking pins 9, 9. Move obliquely downward in the small inclined guide grooves 76 of the operating body 33 and are locked to the lower end portions of the small inclined guide grooves 76 as shown in FIG. Therefore, the guide pins are guided and guided by the small inclined guide grooves 76.
9 moves horizontally in the sliding holes 74, 74, and the locking pins 9,
The shaft portion 9 is inserted and locked in the locking holes 75, 75, so that the leg body 1 and the slide cylinder 2 are locked without sliding each other.

Further, from the state shown in FIG.
15, the locking pins 9, 9 are guided and guided by the small inclined guide grooves 76 to move horizontally in the sliding holes 74, 74, as shown in FIG. The shaft of No. 9 has a locking hole 75,
As a result, the slide cylinder 2 is slidable.

Then, the slide cylinder 2 is connected to an arbitrary locking hole 7.
If the operation body 33 is released from being pulled in the direction of the arrow B in this state by sliding it to the long state by sliding to 5, 75, the locked state is established as shown in FIG. Further, in order to reduce the length, the slide cylinder 2 is pushed into the leg body 1 while the lock is released by the operating body 33, and the pulling of the operating body 33 in the direction of arrow B may be released.

The present invention is not limited to the above-described embodiment, and the design can be freely changed without departing from the gist of the present invention.

For example, in FIG. 1, the inclined guide groove 8 is shifted upward from the upper right to reverse upward and the resilient member.
If the operation body 33 is replaced by a tension spring, the pin 9 moves horizontally to the linear portion 17 of the locking groove 7 when the operation body 33 is pushed upward, so that the leg can be expanded and contracted. . That is, the operation body
By omitting the finger locking portion 36 of the 33, the lower end surface of the operating body 33 can be pushed up with a finger to release the locking of the pin 9.
Such a structure is also free.

Further, the length dimension, outer shape, etc. of each leg body 1 and slide cylinder 2 can be freely changed, and the slide cylinder 2 can be fitted externally to the leg body 1. It is free, and the locking portion 18 of the locking groove 7 has a vertically long engagement hole.
The number of the 71 and the locking holes 75 can be freely increased or decreased.

[0058]

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

The slide cylinder 2 can be easily and quickly expanded and contracted only by pulling the operating body 33, and the length can be changed in a plurality of steps.

Therefore, if these legs are used, the height of the home basket can be easily adjusted according to the size of the user's body, the purpose, and the like, which is convenient.

Moreover, the structure is simple, the number of parts is small, and the production cost can be reduced. According to the second aspect of the present invention, the leg for the home trowel only requires one locking pin 9 and does not require any intervening parts for connecting each part, so that the leg is not complicated.

[Brief description of the drawings]

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

FIG. 2 is a sectional side view of the same.

FIG. 3 is a sectional view of a main part for describing an operation.

FIG. 4 is a sectional view of a main part for describing an operation.

FIG. 5 is a sectional view of a main part for describing an operation.

FIG. 6 is a sectional side view of a main part.

FIG. 7 is a sectional view taken along line ZZ of FIG. 1;

FIG. 8 is a sectional view taken along line WW of FIG. 1;

FIG. 9 is a cross-sectional view of a main part for describing an operation.

FIG. 10 is a sectional view of a main part in a folded state.

FIG. 11 is a cross-sectional front view showing another embodiment.

FIG. 12 is a sectional front view of the same.

FIG. 13 is a sectional side view showing another embodiment.

FIG. 14 is a sectional front view of the same.

FIG. 15 is a sectional front view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Leg main body 2 Slide cylinder 7 Locking groove 8 Slant guide groove 9 Locking pin 17 Linear part 18 Locking part 30 Horizontal groove 33 Control body 38 Resilient member

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 64-51107 (JP, U) Japanese Utility Model No. 1-175208 (JP, U) Japanese Utility Model Utility Model No. 62-102905 (JP, U) Japanese Utility Model No. 1 109713 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) F24C 15/08 A47B 9/14

Claims (1)

(57) [Claims] 1. A leg for a home diaper comprising a leg body 1 and a slide cylinder 2 slidably mounted on the leg body 1 along a longitudinal direction, wherein the leg portion is a vertical linear portion 17. And a plurality of locking portions 18 which communicate with the linear portion 17 at right angles.
And a locking groove 7 having
A horizontal groove 30 is provided in the slide cylinder 2, and an operation body 33 having an inclined guide groove 8 is slidably provided in the slide cylinder 2, and the locking pin 9 is slidable in the horizontal groove 30. While being held, the locking pin 9 is guided through the inclined guide groove 8 and is inserted into the locking groove 7 and the inclined guide groove 8 so as to be movable in the locking groove 7. A resilient member 38 for urging the operating body 33 upward to lock the locking pin 9 with the locking portion 18 of the locking groove 7 is provided by the operating body 33 and the slide cylinder 2. Legs for home diapers, interposed between them.