JPH0444969Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] This invention relates to legs for home kotatsu.

[Problems that conventional technology and ideas try to solve]

Conventional home kotatsu legs are removed from the side frame of the kotatsu body and stored when the kotatsu is not in use. In this case, since the legs were screwed onto the side frame of the kotatsu, it took time to remove them.

The object of the present invention is to provide legs for a home kotatsu that can be easily and quickly bent and do not get in the way when storing the kotatsu.

[Means to solve the problem]

In order to achieve the above object, the leg for a home kotatsu of the present invention is a leg for a home kotatsu which is attached so that the script body can be bent by swinging around the base of the leg. A downwardly opening locking groove is provided at the base, and a locking pin that engages and disengages from the locking groove is provided in the script body, and the locking pin abuts when the script body swings. an abutment guiding portion is provided in succession with the locking groove, and a vertical guide hole into which the locking pin is inserted is formed in the script body portion to hold the locking pin so as to be movable up and down; The lower end of the operating lever, which has a long hole into which the locking pin is vertically movably inserted, is exposed on the lower end surface of the script body, and the operating lever is always moved upward by a resilient member such as a coil spring. Further, a push-up member that comes into contact with the locking pin is provided on the script body portion, and the push-up member is always spring-biased upward by a spring member.

[Effect]

To bend the script body, pull the lower end of the operating lever, and while keeping it in this taut state, that is, the state in which the locking pin is released from the locking groove, bend the script body at the base of the leg. This can be done by swinging it around.

On the other hand, in order to make the script body part vertical, it is sufficient to grasp the script body part at an arbitrary position and swing it in the opposite direction to the above-mentioned bending direction. At this time, the locking pin held in the guide hole of the script body swings while contacting the contact guiding part, and is inserted into the locking groove from below and locked. Since only the pin moves up and down while being elastically pushed upward by the push-up member,
It moves downward within the guide hole and the elongated hole of the operating lever without interlocking with the operating lever. Therefore, since the operating lever does not protrude from the lower end surface of the script body,
The lower end of the operating lever never comes into contact with the floor.

〔Example〕

Embodiments will be described with reference to the drawings. In FIGS. 1, 3, and 4, the legs for a home kotatsu according to the present invention are attached to the upper frame 14 shown by imaginary lines. The legs are connected to connectors 15 such as bolts.
The leg base portion 1 is fixed to a downwardly protruding portion 16 of an upper frame 14 at a cylindrical position, and a leg base portion 4 is bendably connected to the leg root portion 1 via a connecting pin 17. Specifically, the leg base 1 includes a downwardly opening-shaped covering member 18 made of plastic or the like, and the covering member 1
A fixing member 19 made of metal or the like is inserted and fixed in the interior of the fixing member 19.
It is equipped with. In addition, the script body portion 4 includes a hollow cover support leg member 20 made of plastic or the like, a rotation member 21 fixed within the cover support leg member 20,
It is equipped with The upper end of the supporting leg member 20 is formed into an arc shape with a predetermined curvature centered on the connecting pin 17 when viewed from the side so that it can swing in the direction of arrow A around the connecting pin 17 within the covering member 18. ing.

The leg base portion 1 is provided with downwardly opening locking grooves 2, 2, and the leg base portion 4 is provided with a locking pin 3 that engages and disengages with the locking grooves 2, 2. There is. A vertical guide hole 5 into which the locking pin 3 is inserted is formed in the script body portion 4, and the locking pin 3 is inserted into the guide hole 5.
It is held in a vertically movable manner. Reference numeral 9 denotes an operating lever for releasing the locked state when the script body portion 4 is bent, and the upper end of the operating lever 9 includes:
Elongated holes 8, 8 into which the locking pin 3 is vertically movably inserted
is formed. The operating lever 9 is disposed inside the covered support leg member 20 along the longitudinal direction,
The lower end 6 of the operating lever 9 is exposed from the lower end surface 7 of the script body portion 4. Reference numeral 23 denotes a finger insertion hole provided at the lower end 6 of the operating lever 9, and by facing into the recess 22 formed in the lower end surface 7, the operating lever 9 can be pulled downward. . 10
is a resilient member such as a coil spring, and the operating lever 9 is always resiliently biased upward by the resilient member 10. A push-up member 1 is provided below the locking pin 3.
1 is disposed, and its upper end 24 abuts against the locking pin 3, and the push-up member 11 is always resiliently biased upward by another resilient member 12.

Specifically, the locking groove 2 is formed in the hanging piece parts 36, 36 of the fixing member 19, and the locking pin 3 is formed in the hanging piece parts 36, 36 when the script body part 4 swings. Contact guide portions 13, 13 that come into contact are provided. The corresponding contact guiding portions 13, 13 are connected to the locking grooves 2, 2.
Specifically, it corresponds to the lower end edges of the hanging pieces 36, 36. In FIG. 2, covering member 1
8. As shown in the exploded perspective view with the covered supporting leg member 20 and the fixed member 19 omitted, the rotating member 21 and the operating lever 9 are both formed in a substantially U-shape in cross section, and the operating lever 9 can be rotated. Both side plates 2 of member 21
It is located between 5 and 25 and is considered to be a private property. Both ends of the locking pin 3 are attached to both side plates 26 of the operating lever 9,
Elongated holes 8, 8 formed in 26 and rotating member 2
Guide holes 5, 5 formed in both side plates 25, 25 of 1
It is inserted in the shape of a skewer. In addition, the push-up member 11
contacts the locking pin 3 via a concave curved surface 27 formed on its upper end 24, while inserting its lower end into the coil-shaped elastic member 12 and rotating member 21.
It is fitted into a guide hole 28 provided in a bent piece portion 29 of , so as to be vertically movable. The elastic member 10, which always elastically biases the operating lever 9 upward, has its upper end inserted into the locking hole 30 of the bent piece 29, and its lower end inserted into the locking hole 31 of the operating member 9, respectively. It is attached. 32 is an operating piece having a finger insertion hole 23, and is fixed to the operating lever 9. 33, 33 are fixing devices such as screws. Note that 35, 35 are holes for the connecting pin 17 provided in the protruding pieces 34, 34 of the rotating member 21.

As shown in FIG. 4, the supporting leg member 20 is slidably inserted between the left and right side plates 37, 37 of the fixing member 19, and the holding holes 38,
The connecting pin 17 is supported at 38 . Note that the lower end bent portions 39, 39 of the rotating member 21 are fixed to the flat portion 40 of the supporting leg member 20 with screws or the like (not shown).

In order to bend the script body part 4, as shown in FIGS. The locking pin 3 descends together with the operating lever 9 and leaves the locking groove 2. At the same time, the resilient member 12 is compressed and the push-up member 11 is pushed downward. Next, as shown in FIGS. 6 and 6, when the operating lever 9 is pulled and stretched, the script body 4 is swung as shown by arrow A around the connecting pin 17, and the locking pin 3 arrow B around connecting pin 17
It sways like this. In this way, the script body portion 4 can be folded as shown in FIGS.

In order to make the folded script body part 4 vertical, the script body part 4 must be swung in the direction of arrow C without operating the operating lever 9, as shown in FIGS. Bye. At this time, the locking pin swings in the direction of arrow D along the corresponding contact guide portion 13 while contacting the contact guide portion 3 of the hanging piece portion 36 . At the same time, the locking pin 3 is pressed by the guide portion 13 and moves down inside the elongated hole 8, and the push-up member 11 also moves down in conjunction. Then, the locking pin 3 can be locked in the locking groove 2 as shown by the imaginary line. In this case, the operating lever 9 does not move at all with respect to the script body and does not protrude from the lower end surface 7 of the script body 4, so the lower end 6 of the operating lever 9 hits the floor surface 42 and the finger insertion hole 23 There will be no inconveniences such as deformation or breakage of the provided knobs.

[Effect of idea]

Since the present invention is configured as described above, it produces the effects described below.

When the script body part 4 is made vertical, that is, when it is stood up, only the locking pin 3 moves within the guide hole 5 of the script body part 4 and the long hole 8 of the operating lever 9, and the operating lever 9 is moved. , the lower end surface 7 of the script body 4
It never sticks out.

Therefore, when changing the script body part 4 from the folded state to the use state, the knob attached to the operating lever 9 is prevented from hitting the floor surface 42 or other objects and being bent or damaged. I can do it.

[Brief explanation of drawings]

Fig. 1 is an enlarged sectional view of essential parts showing an embodiment of the present invention, Fig. 2 is an enlarged exploded perspective view with some parts omitted, and Fig. 3
The figure is an enlarged sectional view of the main part with some parts omitted, and Figure 4 is the 1st
The cross-sectional views shown in FIG. 5 and FIGS. 5 to 8 are action explanatory views. 1... Leg base, 2... Locking groove, 3... Locking pin, 4... Script body, 5... Guide hole, 6... Lower end, 7... Lower end surface, 8... Long hole , 9... Operation lever, 10... Resilient member, 11... Push-up member, 1
2... Resilient member, 13... Contact member.

Claims (1)

[Scope of utility model registration request] A leg for a home kotatsu is attached so that the script body part 4 can be bent by swinging around the base part 1 of the leg,
A locking groove 2 with a downward opening is provided in the leg root portion 1, and a locking pin 3 that engages and disengages with the locking groove 2 is provided in the leg body portion 4, and the locking pin 3 is connected to the leg. A contact guiding part 13 that comes into contact with the main body part 4 when it swings is provided in a continuous manner with the locking groove 2, and a vertical guide hole 5 into which the locking pin 3 is inserted is formed in the main body part 4. to hold the locking pin 3 movably up and down, and
The lower end 6 of the operating lever 9, which has a long hole 8 into which the locking pin 3 is vertically movably inserted, is exposed to the lower end surface 7 of the script body 4, and the operating lever 9 is connected to a resilient member such as a coil spring. A push-up member 11 is provided on the main body portion 4, and the push-up member 11 is always elastically biased upward by the spring 10 and comes into contact with the locking pin 3. Legs for a home kotatsu characterized by constant upward biasing.