JPH073393U - Seat that doubles as a cushion that can store the backrest - Google Patents

Abstract

(57) [Summary] [Purpose] A cushion with a small storage capacity that can be used as an ordinary cushion, and can be used as a chair by changing it into a chair with one touch if necessary. provide. [Structure] Having a storage chamber 2 for storing a backrest 3, a cushion 1 formed of a filler 5 coated with an outer cloth 6, and a backrest formed by applying the filler 5 to a plate-like body 7 and coating the outer cloth 6. Three
And a supporting arm locking means for vertically locking the cushion 1 by the supporting arm 4 and a backrest standing means provided at a lower portion of the backrest 3 and a rear portion of the cushion 1 to store the backrest 3 in the storage chamber 2
The seat cushion can be changed to a seat chair by pulling out from the stand and standing upright.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention can be used as a seat chair by pulling out the spine stored in the cushion and standing it upright at the rear of the cushion, or it can be used as a normal cushion by storing the spine. About a seat chair that can also be used as a cushion.

[0002]

[Prior art]

 Conventional seat chairs are L-shaped with a backrest erected on a seat plate, L-shaped with a backrest erected on a seat pedestal covered with cushioning material, and an elbow hook. Some products are available on the market, such as the one with a spine, the backrest bent on a seat plate or a pedestal, or the backrest tilted backward to make it flush with the pedestal for easy stacking and storage. Various proposals have been made for a backrest bending means, a bending angle adjusting means, and the like.

Those having a seat plate are those in which a cushion is placed on the seat plate, and there is a drawback that the cushion easily slips off from the seat plate, and if the spine does not bend or fall, it should be stored in a storage place. There were many problems that were required. All of these were exclusively for sitting chairs, and there was no combination of sitting cushion and sitting chair that can be used as a sitting cushion when the sitting chair is not needed and can be used as a sitting chair when the sitting chair is needed.

[0004]

[Problems to be solved]

 The present invention solves the above problems and provides a seat chair that is also used as a seat cushion, which is usually used as a seat cushion and can be used as a seat chair by pulling out the spine and standing with one touch when necessary. The purpose is to do.

[0005]

[Means for Solving the Problems]

 According to the present invention, a storage room 2 is provided in a cushion 1 to store a backrest 3, the backrest 3 is pulled out when necessary, and a support arm 4 provided on the backrest 3 is attached to a side surface of the cushion 1 by a support arm locking means. The backrest 3 is erected on the rear part of the cushion 1 by preventing the backrest 3 from moving back and forth and up and down by the backrest locking means.

FIG. 1 is a partial cross-sectional explanatory view of an embodiment of the present invention, FIG. 2 is a cross-sectional explanatory view of a state in which a backrest 3 is stored in a storage chamber 2 and is used as a cushion, and FIG. 3 is a perspective view of FIG. Is. The storage chamber 2 is a flat rectangular box having a size capable of storing the backrest 3, is open at the rear, is made of metal, plastic, or the like, and is located below the cushion 1. The cushion 1 is a cushioning filler material 5 such as cotton or plastic sponge, and an outer cloth 6 made of a material such as cotton, silk or synthetic fiber, or a material such as leather. , The front and side surfaces are covered. In order to prevent the outer cloth 6 from being soiled, the cushion 1 and the backrest 3 may be covered with a cloth cover.

The backrest 3 has a filler 5 of the same quality as the filler 5 of the cushion 1 applied to the surface other than the back surface of the plate 7 made of wood, metal, plastic, etc. The outer cloth 6 is covered on the entire surface, and support shafts 8 are provided on both side surfaces so that the support arms 4 are rotatably supported on the support shafts 8. The support arm 4 is a rod-shaped or oblong body made of a rigid material such as metal or plastic, and has support arm locking means at its tip and both side surfaces of the cushion 1. The support arm 4 is rotatably supported by a support shaft 8 having a length of about two-thirds of the height of the backrest 3 and one end located at a height of about one-third of the backrest 3. There is. The support arm 4 is located along each side of the backrest 3 when the backrest 3 is stowed, and when the backrest 3 is erected, the support arm 4 is rotated approximately 140 degrees so as to be directed obliquely downward with respect to the backrest 3 and the tip end thereof. Will be locked by the support arm locking means of the cushion 1. Therefore, since the length of the support arm 4 requires the length of the long side of the substantially right triangle formed by the support arm 4, the cushion 1 and the backrest 3, the length is about 1.5 times the height of the support shaft 8. It has become.

The backrest 3 is erected so that the rotatable support arm 4 is locked by the support arm locking means to prevent the backrest 3 from falling and the backrest 3 is prevented from moving in the front-back and up-down directions. However, the supporting arm locking means and the backrest locking means may be any means as long as they can achieve the purpose, and various means can be provided.

The support arm locking means is, for example, as shown in the cross-sectional explanatory views of the main parts of FIGS. What is shown in the cross-sectional explanatory view of the main part of FIG. 4 is also called a stopper plug system. A is a state immediately before the stopper 9 is fitted, B is a state when the stopper 9 is fitted, and C is a stopper. 9 shows the state after insertion.

The support arm 4 has an annular groove-shaped stopper groove 11 inside the tip thereof, and a chamfered stopper plug 9 is fixed therein. The stopper plug 9 is fitted to the side wall 12 of the storage chamber 2. Is formed in the inner surface of the fitting hole 13, and a ring-shaped retaining ring groove 14 is engraved. The wheel 10 is attached. When the stopper plug 9 is strongly pushed toward the fitting hole 13, the tip of the stopper plug 9 presses and spreads the stopper ring 10, so that the stopper ring 10 is fitted in the stopper ring groove 14 and the stopper plug 9 is fitted. It is possible to go inside the hole 13. At this time, the retaining ring 10 is in a contracted state and fits into the retaining ring groove 14, so that the retaining plug 9 is fixed and cannot escape. When the stopper 9 is strongly pulled out, the wall surface of the stopper groove 11 of the stopper 9 presses and spreads the retaining ring 10, so that the stopper 9 is removed. That is, it can be attached and detached with one touch.

The support arm locking means shown in the cross-sectional view of the main part of FIG. 5 is also called a screwing system, where A indicates a state immediately before screwing in and B indicates a state after screwing in. A rotatable male screw 15 is provided at the tip of the support arm 4, and is rotated by a handle 16. The side wall 12 of the storage chamber 2 has a female screw hole 17, and when the male screw 15 is turned and the handle 16 is turned, the male screw 15 is screwed into the female screw hole 17 to lock the support arm. When the handle 16 is turned upside down, the male screw 15 is pulled out, and the support arm 4 is detached from the side wall 12 of the storage chamber 2.

The support arm locking means shown in the cross-sectional view of the main part of FIG. 6 is also called a spring stop system, where A is a state immediately before insertion and B is a state after insertion. The tip of the support arm 4 is slightly curved to form a fitting hole 18, and the side wall 12 of the storage chamber 2 has an insertion groove 19 into which the tip of the support arm 4 is inserted, which is opened inside the insertion groove 19. A locking projection 21 with a leaf spring 20 is provided in and out of the hole so that the leaf spring 20 is provided with a claw piece 22 that protrudes to the outside. By pushing the claw piece 22, the leaf spring 20 is bent, Since the locking projection 21 is configured to be inserted inward, when the tip portion of the support arm 4 is inserted into the insertion groove 19 while pushing the claw piece 22, the locking projection 21 is inserted inward, so that the insertion is deep. When the fitting hole 18 reaches the position of the locking projection 21, the pawl piece 22 is released from the hand, and the leaf spring 20 biases the locking projection 21 into the fitting hole 18. The supporting arm 4 is locked. Further, when the pawl piece 22 is pushed, the locking projection 21 is inserted inward, so that the fitting state of the fitting hole 18 and the locking projection 21 is released, so that the tip portion of the support arm 4 can be easily pulled out. It has become. That is, it can be attached and detached with one touch.

As the backrest locking means, for example, there are those shown in the sectional views of FIGS. 7, 8 and 9. Needless to say, other means may be used. What is shown in FIG. 7 is also referred to as an insertion locking method, and A shows a state immediately before the insertion of the plate-shaped body 7, and B shows a state after the insertion of the plate-shaped body 7. The plate-like body 7 is exposed at the lower part of the backrest 3 to form an insertion portion 23, and an insertion frame 24 into which the insertion portion 23 is inserted is provided at the upper edge of the opening of the storage chamber 2. With a structure in which an insertion groove 25 with which the insertion portion 23 is locked is provided at the lower edge of the backrest 3, when the insertion portion 23 of the backrest 3 is inserted from the insertion frame 24 and the tip is fitted into the insertion groove 25, the backrest 3 is stored in the storage chamber. It is configured to be locked to 2.

The insertion portion 23 may have a shape in which a central portion is cut out and projection portions are provided on the left and right sides. In this case, the insertion frame 24 and the insertion groove 25 are arranged on the left and right sides in correspondence with the position and size of the projection portion. Set up. Alternatively, both sides of the insertion portion may be cut out to provide a protrusion in the center. In this case, the insertion frame 24 and the insertion groove 25 are provided in the center corresponding to the position and size of the protrusion.

The cross-sectional view of the main part of FIG. 8 is also referred to as a projection locking method, in which A indicates a state immediately before locking and B indicates a state after locking. The lower part of the backrest 3 is formed by bending the plate-shaped body 7 at a substantially right angle, and is a hairpin-shaped elastic body at two points on the left and right of the tip, and each tip has an enlarged portion with an arcuate or doglegged shape. The protrusion 26 is provided, the elastic protrusion 26 is in an open state, and the bottom wall 27 of the storage chamber 2 has a chamfered locking hole 28 into which the elastic protrusion 26 is inserted. Has a size such that the elastic protrusion 26 in the opened state does not come off. When the bent portion of the plate-shaped body 7 of the backrest 3 is placed under the opening of the storage chamber 2 and the elastic protrusion 26 is strongly pressed toward the locking hole 28, the elastic protrusion 26 is narrowed by the narrow locking hole 28. When it enters the locking hole 28 because it is narrowed against the bias and then goes out above the locking hole 28, the tip of the elastic protrusion 26 expands due to the bias of the elastic protrusion 26, and therefore the plate-shaped body of the backrest 3 is formed. 7 is locked. When the plate-shaped body 7 is strongly pulled, the locking hole 28 resists the bias of the elastic projection 26 and narrows the enlarged portion of the elastic projection 26, so that the elastic projection 26 can be easily removed from the locking hole 28. It has become. That is, it can be attached and detached with one touch.

What is shown in the sectional view of the main part of FIG. 9 is also referred to as a projection locking system, in which A shows a state immediately before locking and B shows a state after locking. The lower portion of the backrest 3 has a shape in which the plate-like body 7 is bent at a substantially right angle as in the former case, and the bulging projections 29 having the bulging portions with the bulging ends having a substantially spherical shape are provided at two places on the left and right sides of the backing 3, and A locking hole 28 is opened in the opening bottom wall 27, and the locking hole 31 is constituted by the locking piece 31 urged by the elastic body 30 built in the bottom wall 27 and the edge of the locking hole 28. It is a thing. When the plate-like body 7 of the backrest 3 is applied to the bottom wall 27 of the storage chamber 2 and the bulging projection 29 is pushed toward the locking hole 28 and strongly pressed, the bulging projection 29 resists the urging of the elastic body 30. Since the locking piece 31 is moved to widen the locking hole 28, the enlarged portion of the bulging projection 29 easily enters through the locking hole 28 and the plate-shaped body 7 of the backrest 3 is locked in the storage chamber 2. . When the plate-shaped body 7 is pulled strongly, the enlarged portion of the bulging protrusion 29 moves the locking piece 31 against the bias of the elastic body 30 to remove the plate-shaped body 7 from the bottom wall 27. Has become. That is, it can be attached and detached with one touch.

[0017]

[Action]

 Since the backrest 3 is in the storage chamber 2 of the cushion 1 and is pulled out, if the locking means of the backrest 3 is provided with the insertion frame 24 shown in FIG. 7, the insertion portion 23 of the backrest 3 is stored in the storage chamber 2. When the backrest 3 is inserted from the insertion frame 24 and the tip is fitted into the insertion groove 25, the backrest 3 is fixed.

In the case of the projection locking method shown in FIG. 8 or 9, the bent portion of the plate-shaped body 7 of the backrest 3 is applied to the rear of the bottom wall 27 of the storage chamber 2 and the elastic projection 26 or the bulging projection 29 is attached. When it is strongly pushed into the locking hole 28 provided in the bottom wall 27 of the storage chamber 2, the elastic protrusion 26 or the bulging protrusion 29 is pushed inward from the locking hole 28, and the elastic protrusion 26 or the elastic body 30 is urged to engage. It stops and doesn't move.

Next, when the support arm 4 provided on the backrest 3 is rotated by about 140 degrees, the tip of the support arm 4 moves toward the middle of the side surface of the cushion 1, so that when the locking means is the stopper 9 shown in FIG. When the stopper 9 is pushed against the fitting hole 13 of the side wall 12 of the storage chamber 2 and pushed strongly, the stopper 9 presses the stopper ring 10 and spreads it into the fitting hole 13, so that the support arm 4 moves into the storage chamber 2. It becomes locked and immobile. In the case of the locking means shown in FIG. 4, when the male screw 15 provided on the support arm 4 is applied to the female screw hole 17 and the handle 16 is rotated, the male screw 15 is screwed into the female screw hole 17 and the support arm 4 is stored. It is fixed to the side wall 12 of the chamber 2. In the case of the spring-fastening method shown in FIG. 5, when the tip portion of the support arm 4 is pushed into the insertion groove 19 of the side wall 12 of the storage chamber 2, the engaging projection 21 is fitted into the fitting hole 18 of the tip portion to support. The arm 4 is fixed to the side wall 12 of the storage chamber 2.

When the backrest 3 and the support arm 4 are fixed to the cushion 1 in this manner, the chair 3 has a shape of a chair and is stable even when the backrest is seated. When it is used as the cushion 1, the procedure is the reverse of the above, and the tip of the support arm 4 is pulled strongly or the handle 16 is reversed to remove the support arm 4 from the side wall 12 of the storage chamber 2 and then the backrest. The exposed plate-shaped body 7 of 3 is pulled strongly to remove the plate-shaped body 7 from the bottom wall 27, and the support arm 4 is rotated about 140 degrees to bring the support arm 4 along the backrest 3 and then the backrest 3 When the sheet is inserted into the storage chamber 2 and stored, it becomes the shape of the cushion 1 and can be used as the cushion 1.

[0021]

【Example】

 An embodiment of the present invention will be described. The rear of the storage chamber 2 made of a flat metal rectangular box is opened, and as shown in FIG. 7, a cylindrical insertion frame 24 having a rectangular cross section is provided at two places on the left and right of the upper edge of the opening. Cotton as the filler 5 is applied to the storage chamber 2 having the insertion groove 25 facing the insertion frame 24 at the lower edge except for the lower surface and the opening, and this is covered with the outer cloth 6 made of cotton fabric. Cushion 1 Using a plastic rectangular plate-like body 7 as a core, cotton as a filler 5 is applied to one surface except the lower part thereof, and an outer cloth 6 made of a cotton fabric is further covered to form the backrest 3. As shown in FIG. 1, a support shaft 8 is provided at a position of approximately one-third of both sides of the backrest 3, and a support arm 4 having a length of about two-thirds of the length of the backrest 3 is pivotally supported by the support shaft 8. Let As shown in FIG. 4, a stopper 9 having a stopper groove 11 is fixed to the inside of the support arm 4, and the stopper ring 9 is fitted to the side wall 12 of the storage chamber 2. A fitting hole 13 in which 10 is fitted in the snap ring groove 14 is provided. The backrest 3 can be stored in the storage chamber 2. Take out and insert the lower part of the backrest 3 into the insertion frame 24 until it reaches the insertion groove 25, and fit the stopper plug 9 of the support arm 4 into the fitting hole 13. The backrest 3 can be erected on the cushion 1 by.

Another embodiment of the present invention will be described. The rear of the storage chamber 2 made of a flat rectangular box made of plastic is opened at the rear side, and as shown in FIG. 8, the locking holes of a size such that the elastic projections 26 can be inserted in two places on the left and right sides of the bottom wall 27 near the opening. 28 is visible, and as shown in FIG. 5, female screw holes 17 are visible in both side walls 12 at a position approximately one-third of the opening. The cushion 1 is formed by covering the storage chamber 2 except the lower surface and the opening with an outer cloth 6 made of a synthetic fiber woven material as the filling material 5. The core of the backrest 3 is a metal rectangular plate-like body 7, the lower part of which is bent at a substantially right angle as shown in FIG. 8, and a hairpin-like elastic body is provided at the tip thereof, and both ends are curved in an arcuate shape to form an enlarged part. The elastic protrusions 26 having the shape formed with are fixed. The filling material 1 made of a plastic sponge is applied to the plate-like body 7, and the backrest 3 is formed by covering the outer cloth 6 of the synthetic fiber woven fabric, and as shown in FIG. A support shaft 8 is provided at a position of one-third, and a support arm 4 having a length of about two-thirds of the backrest 3 is pivotally supported by the support shaft 8. As shown in FIG. 5, a male screw 15 that is moved forward and backward by the rotation of the handle 16 is provided at the tip of the support arm 4. The backrest 3 is housed in the storage chamber 2, taken out, and the elastic projection 26 is fitted and fixed in the locking hole 28 of the bottom wall 27, and the support arm 4 is rotated to rotate the male screw 15 to the female wall of the side wall 12. The backrest 3 is erected on the cushion 1 by turning the handle 16 into the screw 17 and screwing it in.

[0023]

[Effect of device]

 When the present invention requires a cushion, it is used by changing the shape of the cushion, and when a chair is needed, pull out the backrest from the storage room of the cushion, attach the backrest to the back of the cushion with one touch, and support arms. Can be changed to a seat with a cushion by a simple operation that fixes the cushion to the cushion with one touch, so there is no need to prepare both a cushion and a cushion, and if you use a cushion, the volume will increase. Since it is small, it is extremely convenient for storage.

[0024]

[Brief description of drawings]

FIG. 1 is a partial cross-sectional explanatory view of an example of implementation of the present invention.

FIG. 2 is a cross-sectional explanatory view showing a state as a cushion.

FIG. 3 is a perspective view of FIG. 1.

FIG. 4 is a cross-sectional explanatory view of a main part of a supporting means using a stopper.

FIG. 5 is an explanatory cross-sectional view of a main part of a supporting means by screwing.

FIG. 6 is an explanatory cross-sectional view of a main part of a supporting means using a locking projection.

FIG. 7 is a cross-sectional explanatory view of the main parts of the upright means by insertion.

FIG. 8 is a cross-sectional explanatory view of the main parts of the upright means using elastic protrusions.

FIG. 9 is a cross-sectional explanatory view of an essential part of a standing member formed by a bulging protrusion.

[Explanation of symbols]

 1 Cushion 2 Storage chamber 3 Backrest 4 Support arm 7 Plate-like body 9 Stopper plug 10 Stop ring 11 Stop groove 13 Fitting hole 15 Male screw 17 Female screw hole 18 Fitting hole 19 Inserting groove 21 Locking projection 24 Inserting frame 25 Inserting Groove 26 Elastic protrusion 28 Locking hole 29 Bulging protrusion 31 Locking piece

Claims (1)

[Scope of utility model registration request] 1. A backrest (3) pulled out from a storage chamber (2) in a cushion (1) is provided with a rotatable supporting arm (4) on its side surface, and the supporting arm (4) is provided with the cushion (1). The backrest (3) can be erected on the rear part of the cushion (1) by means of the support arm locking means for locking the backrest (3) and the backrest locking means for preventing movement of the backrest (3). A seat that doubles as a cushion that can store a backrest.