JPH04113810U - Foldable leg structure for kotatsu etc. - Google Patents

Abstract

(57) [Summary] [Purpose] To create a leg structure in which the legs, which are hung vertically at appropriate intervals on the outer periphery of the lower surface of a kotatsu body etc. arranged horizontally, can be folded toward the lower surface of the kotatsu body etc. The purpose is to reduce the number of parts and facilitate assembly. [Structure] A leg attachment part 24 is provided at the leg attachment position on the lower surface of the kotatsu main body 1, etc. by opening the lower surface and the surface facing the folding direction of the legs 2, and the support part 28 at the end of the leg 2 is attached to this leg attachment part 24. An operating member 38 is inserted and rotatably supported by the shaft body 10, and its tip engages with a lock pin 46 which is biased outward from the end face of the support portion 28 of the leg 2 so as to be able to move forward and backward. The legs 2 and the shaft body 10
It is attached to the leg 2 so as to be able to slide on each side, and with its appropriate position exposed to the outside as the operation end 41, and furthermore, an engagement member is provided on the upper inner surface and the inner surface of the side portion of the leg attachment portion 24 to engage with the lock pin 46. Part 1
9 and 27.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a leg structure that allows the legs of a kotatsu etc. to be folded into the kotatsu body. Ru.

0002

[Conventional technology]

Traditional foldable leg structure, for example, the legs of a kotatsu can be folded into the kotatsu body There is a leg structure shown in Japanese Patent Application Laid-Open No. 63-306316. .

0003 This is a folding of the lower surface and the lower legs that are incorporated into the frame-shaped kotatsu body. The shaft support of the shaft body is inside the leg mounting member, which has a leg mounting part with an opening on the surface facing the direction of view. Attach the leg mounting bracket with the In addition to providing a release operation button with a spring bias, the shaft of the shaft body is installed inside the first insertion part at the top of the leg. Incorporate the leg fixing bracket with the branch and the second insertion part, and furthermore, the first insertion part and the second insertion part. Attach the locking fittings with a spring bias between them, and fix the leg mounting fittings of the leg mounting members and the legs of the legs. The metal fitting is rotatably supported by a shaft.

0004

[Problem that the idea aims to solve]

However, this type of leg structure requires a large number of parts, and the return spring needs to be removed. It needs to be assembled on both the main body side and the leg side, so there is a problem that it takes time to assemble. .

[0005] In view of these conventional problems, the folding kotatsu etc. according to the present invention was devised. Foldable leg structure reduces the number of parts and facilitates assembly. With the goal.

[0006]

[Means to solve the problem] In order to achieve this purpose, in claim 1 of the present invention, the horizontally arranged Under the kotatsu main body, etc. In order to make it possible to fold it toward the surface, the bottom surface and the leg mounting position on the bottom surface of the kotatsu body etc. A leg mounting part is provided with an opening on the side facing the folding direction of the leg, and the supporting part of the leg end is attached to this leg. The legs can be inserted into the mounting part and the shaft can be used to stand up from the bottom of the kotatsu body, etc. It is provided so that it can be folded toward the lower surface of the body, etc., and it also extends from the end surface of the leg support part to the tip. An operating member whose end engages with a lock pin that is biased outward from this end surface is attached to the leg so that the end can move forward and backward. and the shaft body, and the appropriate position can be seen outside as the operating end. It can be attached to the leg by attaching it to the leg. An engagement that engages this lock pin in a positional relationship corresponding to the lock pin when the legs are folded. The present invention has a foldable leg structure for a kotatsu, etc., which is characterized by having a section.

[0007]

[Effect]

Therefore, this leg structure is shaped like a rectangular frame in plan view of the kotatsu. For example, point the legs hanging from the four corners of the kotatsu body toward the center of the bottom of the kotatsu body. This is applied when it is made foldable. Then, the lock pin attaches to the leg. When the leg is in an upright state by engaging the engaging part provided on the inner surface of the upper part, the leg is exposed to the outside. When you push the operating end of the operating member downward, the lock pin moves downward in conjunction with this. , the engagement between this lock pin and the engaging part on the inner surface of the upper part of the leg mount will be released, and the leg will remain in place. The lock pin engages the inner surface of the side of the leg attachment part in the folding direction toward the center of the bottom surface of the Tatsu body. The legs can be folded onto the underside of the kotatsu body by pushing until they engage with the joints. Also, when raising the legs in the folded state, the operating end of the operating member should be Push to the side opposite to the shaft support side to release the engagement between the lock pin and the engaging part on the inner surface of the side of the leg mount. Then, move the leg in the standing direction until the lock pin re-engages with the engaging part on the inner surface of the upper part of the leg mount. Push it until it fits.

[0008] This type of leg structure also works well when folding the legs in the direction facing the bottom of the kotatsu body. Applicable.

[0009] In addition, it can also be applied to various types of furniture with legs, electrical appliances, etc.

0010

【Example】

The details of the foldable leg structure of the kotatsu etc. according to the present invention are further explained based on the attached drawings. explain.

[0011] In the illustrated embodiment, the kotatsu main body is shaped like a rectangular frame when viewed from above. The legs hanging from the four corners can be folded toward the center of the bottom of the kotatsu body. The explanation will be based on the case where In Figure 1, 1 is formed into a rectangular frame shape in plan view and is water-resistant. The kotatsu body 2 is arranged vertically at the four corners of the kotatsu body 1. , and can be folded toward the center of the bottom surface of the kotatsu body 1, as shown by the dashed line in the figure. The legs have an almost oval cross section. In addition, 3 in the figure indicates the four corners of the kotatsu body 1. A corner member 4 disposed in the corner member 4 is a connecting rod that connects the corner member 3. As shown in the figure, a portion corresponding to the corner of this corner member 3 is provided with an outer peripheral side. is fan-shaped in plan view, and the inner periphery side is rectangular in plan view, with an opening at the lower surface. It is.

0012 Next, 6 in Figures 2 and 3 is attached to the kotatsu body 1 by inserting its upper part into the mounting opening 5. This is an internal hollow leg mounting member with an opening on the lower surface to which the leg is attached, and the upper part thereof is connected to the mounting hole 5. The side corresponding to the outer circumferential side is a fan shape in plan view, and the side corresponding to the inner circumferential side is flat. The mounting convex portion 7 is formed into a rectangular shape in appearance, and the cross section of the lower part is the same shape as the cross section of the leg 2. A locking stage formed in a substantially elliptical shape and locked to the edge of the mounting port 5 between the upper and lower parts. 8, and further a surface facing the center of the kotatsu main body 1, which is the direction in which the lower legs 2 are folded. It is opened. In addition, 9 in the figure is attached to the kotatsu body 1 together with the leg attachment member 6. This is a pivot support that can be attached to the kotatsu body. A device that pivotally supports the shaft body shown as 10 in the figure, which allows the main body 1 to be folded toward the bottom surface. It is. In addition, 11 in the figure is a hole for inserting a bolt 12 that fixes the leg mounting member 6 and the shaft support 9. 13 is the insertion of the bolt 14 that attaches the leg mounting member 6 to the kotatsu body 1 together with the pivot support 9. The openings 15 are provided on a pair of surfaces that are perpendicular to the side openings at the bottom of the leg mounting member 6 and are opened on the bottom surface. This is a recess for supporting the shaft body 10, which is opened. Also, 16 is the button provided on the corner member 3. This is the insertion opening for route 14. Next, 17 is a mounting piece provided by making the shaft support 9 stand up, and 18 is this mounting piece. The leg mounting member 6 provided on the mounting piece 17 of the kotatsu body 1 is attached together with this pivot support 9. This is a screw hole into which a bolt 14 attached to the inner member 3 is screwed. Also, 19 is the water of the pivot support 9 an opening-shaped engagement portion 21 that engages with a lock pin to be described later when the leg 2 is raised up provided on the flat piece 20; is the bolt 12 inserted through the insertion boss 11 of the leg mounting member 6, which is also provided on the horizontal piece 20. The screw hole 22 to be screwed into is an insertion opening of the shaft body 10 provided oppositely to the pair of vertical pieces 23, 23. be. Then, the pivot support 9 is inserted from the bottom surface of the leg mounting member 6, and the horizontal piece of the pivot support 9 is 20 is positioned almost above the rim of the opening facing the side at the bottom of the leg attachment member 6. However, at this time, between these two, the bottom surface and the surface facing the folding direction of the legs 2 are opened. Thus, the leg attachment portion 24 is formed. In the figure, 25 points toward the side of the lower part of the leg mounting member 6. The arcuate portion is provided on the lower edge side of the girder opening, and 26 is a convex strip provided on the upper edge of this opening. or , 27 is approximately the same as the leg 2 provided on the inner surface of the wall facing the sideward opening of the leg mounting member 6. This is a recessed engagement part that engages with a lock pin (described later) when folded in a horizontal state. .

[0013] 28 in FIGS. 3 and 4 indicates a support portion integrally provided at the end of the two legs. , this support portion 28 is inserted between the leg attachment portion 24, that is, the pair of vertical pieces 23, 23 of the pivot support 9. By inserting the shaft body 10, the legs 2 can be erected from the kotatsu body 1. It is foldably supported on the kotatsu body 1. 29 in the figure is inserted through this shaft body 10. It shows the insertion hole for In addition, 30 in the figure indicates an opening on the upper surface of the support part 28, which will be described later. The member housing recess 31 has a pair of sliding pieces for the operating member provided on both sides of this housing recess 30. A guide groove that is slidably accommodated, 32 is a communication groove that communicates with this guide groove 31, and 33 is an operating section. A guide strip 34 slidably accommodates the operating piece of the material and the operating lever described later, and 34 is also described later. This is a bottomed opening opening into a housing recess 31 that accommodates a lock pin and a spring. Furthermore, 35 is an arcuate portion provided on the upper edge of the supporting portion 28 on the opposite side to the guide strip 33. And 36 supports A locking stepped portion at the base end of part 28, which locks onto the lower end of the leg attachment member 6 when the leg 2 is raised. It is formed so that In addition, 37 in the figure is on both sides of the proximal end of the guide strip 33 side of this locking step 36. This is the protrusion provided.

[0014] Next, 38 in the figure is an operating member, which has a pair of sliding pieces 40, 40 below the horizontal piece 39 on both sides. In addition, the tip of the horizontal piece 39 is bent into a hook shape from the edge between which the sliding piece 40 is sandwiched. An operating piece 42 having a bent operating end 41 hangs down, and a pair of sliding pieces 40, 40 have long insertion holes 43, 43 which face each other and through which the shaft 10 is slidably inserted, and a horizontal piece. The edge of 39 opposite to the operating piece 42 has an engagement that engages with a concave groove on the outer periphery of the lock pin, which will be described later. A notch 44 is provided respectively, and a pair of claw pieces of the operating lever are inserted into both sides of the operating piece 42. It is provided with a pair of notches 45, 45 through which it passes. 46 in the figure is the outer side of the tip. The lock pin 48 has a concave groove 47 on its circumference and has a pair of claw pieces 49, 49 on its back surface for operation. An operating lever attached to operating piece 42 of member 38 is shown. In addition, 50 in the figure is a bottomed opening. The lock pin 46 housed in the support part 34 can be moved forward and backward from the end face of the support part 28. It is a spring that biases the

[0015] In order to make the legs 2 foldable from these members into the kotatsu body 1, follow the steps below. Do it like this. First, a spring is inserted into the bottomed opening 34 opened in the accommodation recess 30 of the support part 28 at the end of the leg 2. Insert 50. Next, when the groove 47 of the lock pin 46 is engaged with the engagement notch 44, Insert the claw pieces 49, 49 into the operating piece 42 through the notches 45, 45, and then press the operating lever. -48 attached to the operating member 38, the lock pin 46 to the bottomed opening 34, and the pair of sliding pieces 40, 40 is positioned in the pair of guide grooves 31, 31, and the operating piece 42 and operating lever 48 are positioned in the guide strip 33, respectively. Then, the horizontal piece 39 is accommodated in the accommodation recess 30. The guide strip 33 of this support portion 28 Attach the vertical pieces 23, 23 of the shaft support 9 on both sides with the guide strip 33 side and the mounting piece 7 side on the same side. Orient and apply the insertion hole 22 of the pivot support 9, the insertion hole 29 of the support part 20, and the operation member 38. The long insertion ports 43 are made to communicate with each other, and both ends of the shaft body 10 are inserted from both sides of the shaft support 9 to the same extent. Insert it so that it protrudes. The leg 2 with the pivot support 9 attached to this end is attached to the leg mounting section. Insert the shaft support 9 into the material 6 with the mounting piece 17 facing toward the side, and insert the insertion bolt. Screw the bolt 12 inserted through the base 11 into the screw hole 21 provided in the horizontal piece 20 of the pivot support 9. , the leg attachment member 6 and the pivot support 9 attached to the end of the leg 2 are attached. Koto Both ends of the shaft 10 are inserted from the lower surface of the shaft support recess 15 of the leg mounting member 6, but the leg mounting member 6 By fixing the member 6 and the shaft support 9, the shaft 10 can be caulked or stopped at both ends. It is fixed without any fittings. Then, attached to the end of these legs 2 Insert the mounting protrusion 7 on the top of the leg mounting member 6 into the mounting opening 5 of the corner member 3 of the kotatsu main body 1. the bolt 14 inserted from the inside of the corner member 3 as shown in Figure 3. Attach the leg 2 to the kotatsu body 1 by screwing it into the screw hole 18 provided in the mounting piece 17 of 9. be.

[0016] As shown in FIG. 3, a locking step 36 at the base end of the support portion 28 is attached to the lower end of the leg attachment member 6. At the same time, the lock pin 46 engages with the engagement portion 19 provided on the inner surface of the upper part of the leg attachment portion 24. The leg 2, which is in an upright position, is operated via the externally exposed operating lever 48. When the operating end 41 of the operating member 38 is pushed downward, the lock pin 46 is moved as shown in FIG. The lock pin 46 disengages from the engagement portion 19 on the upper inner surface of the leg attachment portion 24. Then, lock the legs 2 in the folding direction toward the center of the bottom of the kotatsu body 1. By pushing until the lock 46 engages with the engaging part 27 on the inner surface of the side part of the leg mounting part 24, the leg 2 can be moved as shown in FIG. As shown in the figure, it can be folded almost horizontally on the lower surface of the kotatsu main body 1. Also, fold When the legs 2 in the folded state are raised up, the operation piece 42 of the operation member 38 is Push the operating lever 48 to the side opposite to the pivot support side of the leg 2, and then push the lock pin 46 and the leg attachment part 24 side. Release the engagement of the engagement part 27 on the inner surface of the part, and then move the leg 2 in the standing direction until the lock pin 46 is released. The leg attachment portion 24 is pushed until it engages again with the engagement portion 19 on the upper inner surface.

[0017] In the illustrated embodiment, the kotatsu main body 1 is formed into a circular frame shape in plan view, or It is also possible to form it not in a frame shape but in a plate shape. Also, attach the leg attachment member 6 to the corner part. The supporting part 28 may be formed integrally with the leg 3, or the supporting part 28 may be formed separately from the leg 2, or the engaging part 19, 27 may be formed integrally with the leg 3. It can also be formed in a convex shape without forming in an opening shape or a recessed shape.

[0018] This type of leg structure is suitable for when the legs 2 are folded in the direction facing the lower surface of the kotatsu main body 1. It is also applicable to

[0019] In addition, it can also be applied to various types of furniture, electrical appliances, etc. that have legs 2.

[0020]

[Effect of the idea]

In the foldable leg structure of the kotatsu etc. according to the present invention, the bottom of the kotatsu body is A leg attachment part with an opening on the bottom side and the side facing the folding direction is provided at the leg attachment position on the side, and the leg end A supporting part is provided at the end of the leg to be rotatably supported on the leg mounting part. An operating member whose tip engages a lock pin that can move forward and backward from the surface, and its operating end externally Since it is installed on the leg so as to look into the body, the number of parts can be reduced and the Only the lock pin is included, so there is no need to worry about assembling it.

[Brief explanation of drawings]

[Fig. 1] A plan view showing a part of the case where the leg structure according to the present invention is applied to a kotatsu.

[Fig. 2] A perspective view showing the relationship between the leg mounting member, the shaft support, and the shaft body.

[Figure 3] Longitudinal cross-sectional view showing the main parts with the legs erected

[Fig. 4] A perspective view showing the relationship between the leg, lock pin, operating member, and operating lever.

[Figure 5] Plan view of the legs

[Fig. 6] Vertical cross-sectional view showing a state in which the legs are erected and the operating member is moved down.

[Figure 7] Longitudinal cross-sectional view showing the legs in a folded state

[Explanation of symbols]

1 Kotatsu body 2 legs 3 Corner members 4 Connecting rod 5 Mounting port 6 Leg mounting parts 7 Mounting protrusion 8 Locking step part 9 Pivot support 10 axis body 11 Insertion boss 12 volt 13 Insertion port 14 volt 15 Pivot support recess 16 Insertion port 17 Mounting piece 18 Spiral hole 19 Engagement part 20 horizontal piece 21 Spiral hole 22 Insertion port 23 vertical piece 24 Leg attachment part 25 Arc-shaped part 26 Convex 27 Engagement part 28 Support part 29 Insertion port 30 Containment Recess 31 Guide groove 32 Communication groove 33 Guideline 34 Bottomed mouth 35 Arc-shaped part 36 Locking step 37 Convex part 38 Operation member 39 horizontal piece 40 Sliding piece 41 Control end 42 Operation piece 43 Long insertion port 44 Engagement notch 45 Notch 46 lock pin 47 Groove 48 Control lever 49 Claw piece 50 springs

Claims (1)

[Scope of utility model registration request] [Claim 1] In order to make it possible to fold the legs, which are vertically disposed at appropriate intervals on the outer periphery of the lower surface of the kotatsu main body, etc., arranged in the horizontal direction, toward the lower surface of the kotatsu main body, etc. At the leg mounting position on the lower surface, a leg mounting part is provided with the lower face and the face facing the folding direction of the leg open, and the support part of the leg end is inserted into this leg mounting part, and the leg is attached to the lower surface of the kotatsu body etc. using the shaft. The operating member is provided so as to be able to stand up from the ground and to be foldable toward the lower surface of the kotatsu main body, etc., and the operating member engages with a lock pin whose tip is movable forward and backward from the end face of the leg support part and is biased outward from this end face. It is attached to the leg so that it can slide on the leg and the shaft separately, and the appropriate place is exposed to the outside as the operating end, and when the leg is raised on the inner surface of the upper part of the leg mounting part, and on the inner surface of the side part of the leg mounting part. 1. A foldable leg structure for a kotatsu, etc., characterized in that an engaging portion that engages with a lock pin is provided in a positional relationship corresponding to the lock pin when the leg is folded.