JP2020195546A - sofa - Google Patents

Abstract

To provide a sofa which can be switched into a high-back specification when needed while being a low-back specification by one sofa.SOLUTION: A sofa 100 includes a sofa body 10 having a backrest part 11 and a cushion 20 for a backrest which can be placed on the backrest part 11. The sofa body 10 includes a high-back supporting frame 40 which is switchable between a stored position and an expanded position in the backrest part 11. In a state where the high-back supporting frame 40 is in the stored position, the high-back supporting frame 40 is folded not to protrude from the backrest part 11. In a state where the high-back supporting frame 40 is in the expanded position, the high-back supporting frame 40 is protruded above the backrest part 11 so that a high-back cushion 60 that is a separate member can be connected to the high-back supporting frame 40.SELECTED DRAWING: Figure 4

Description

The present invention relates to a sofa with a high back.

Sofas are generally short, and the backrests of sofas are often low-back sofas that hold the user's back, so the back of the head cannot be supported. On the other hand, a tall high-back sofa is also provided, but it has the disadvantage that it feels oppressive due to its large size and makes the room feel small. On the other hand, as shown in Patent Document 1, a plug-in type headrest of a sofa that can be attached to a low-back sofa to obtain the same sitting comfort as a high-back sofa has been proposed. As shown in FIG. 13, this plug-in type headrest includes a headrest cushion 90 and a frame 91. The plug-in headrest is made of a separate member from the sofa body. Then, by inserting the frame 91 of the plug-in headrest between the cushion for the backrest of the sofa and the sofa body, the sofa is held by the sofa. By using this plug-in headrest, the low-back sofa can be made into a high-back specification when needed, which has the advantage of being able to sit comfortably.

Utility Model Registration No. 3188612

However, since such a plug-in headrest is made of a separate member from the sofa body, it is bulky and disturbing when not in use, and it is necessary to prepare a dedicated cover and secure a storage place. There was also a concern that I would forget where I ended up when I wanted to use it. In addition, there is a problem that it is costly because it is purchased separately from the sofa.

The present invention has been made in view of such problems in the past, and one of the purposes thereof is to provide a sofa that can be made into a high-back specification when necessary while having a low-back specification in one sofa. There is.

Means for Solving Problems and Effects of Invention

According to the sofa according to the first aspect of the present invention, the sofa is provided with a sofa body having a backrest portion and a backrest cushion that can be placed on the backrest portion, and the sofa body is mounted on the backrest portion. , A high-back support frame that can be switched between a storage posture and a deployment posture can be provided. Further, when the high back support frame is in the retracted posture, the high back support frame is folded so as not to protrude from the backrest portion, and when the high back support frame is in the deployed posture, the high back support is supported. The frame can be projected above the backrest portion, and a highback cushion of another member can be connected to the highback instruction frame. With the above configuration, the high-back cushion can be held above the back cushion by switching the high-back support frame to the unfolded posture in the case of the high-back specification. On the other hand, in the case of low-back specifications, by switching the high-back support frame to the storage posture, it can be used as a low-back specification sofa without high back. In other words, it is possible to store the high back support frame when the high back is not in use, and deploy the high back support frame only when necessary, and it is convenient to switch between a sofa with a high back and a sofa without a high back with one sofa. You get the advantage of being able to use it. In addition, the highback support frame is incorporated into the sofa body without being a separate member so that the highback support frame can be stored in the sofa body when the highback is not in use. As a result, it is not necessary to put away the high-back support frame in another place, so that it is not necessary to secure an extra storage space, which has the advantage of increasing convenience.

Further, according to the sofa according to the second side surface, in addition to the above configuration, the high back support frame has a U-shape in a plan view, and both end sides of the high back support frame are rotatably attached to the backrest portion. The backrest portion can form a storage portion for accommodating the high back support frame in a state where the high back support frame is in the storage posture. With the above configuration, the high back support frame can be stored in the backrest portion without being exposed in the stored state, so that there is an advantage that the appearance is improved.

Further, according to the sofa according to the third side surface, in addition to the above configuration, the storage portion can be a slit formed in the backrest portion. With the above configuration, there is an advantage that the high back support frame can be efficiently stored in a small storage space. In addition, it is not noticeable in appearance and can prevent deterioration of appearance.

Furthermore, according to the sofa according to the fourth side surface, in addition to any of the above configurations, the highback support frame is provided on both end sides of the highback support frame, and a rotation shaft embedded in the backrest portion is provided. It is provided with a rotating portion that can rotate in the center, and an insertion portion that extends from the rotating portion to the outside of the backrest portion and inserts the high back cushion in a state where the high back support frame is in the deployed posture. be able to. With the above configuration, since the high-back cushion can be supported simply by inserting it into the insertion portion, there is an advantage that the operation of switching between the deployed posture and the stored posture is easy and the usability is improved.

Furthermore, according to the sofa according to the fifth side surface, in addition to the above configuration, the insertion portion includes a pair of first members whose one end side is connected to the rotating portion, and the pair of first members. A second member provided between the pair and connecting the other ends of the pair of first members can be provided.

Furthermore, according to the sofa according to the sixth side surface, in addition to the above configuration, the highback support frame further has a pair of bent portions between the rotating portion and the insertion portion. The pair of bent portions can press the upper portion of the backrest cushion placed on the backrest portion with the highback support frame in the unfolded posture. With the above configuration, while holding the back cushion in place with the high back support frame, the high back cushion is held above the back cushion, and the sofa with high back specifications can be used stably in the positioned state. Benefits are gained.

Furthermore, according to the sofa according to the seventh side surface, in addition to any of the above configurations, the sofa body has a pair of long sides, a first side, and a pair of short sides, in a plan view. It has a rectangular shape composed of two sides, and the backrest portion is provided on one side of the pair of first sides, and a plurality of the highback support frames can be mounted side by side on the backrest portion. With the above configuration, not only a sofa for one person but also a sofa for a plurality of people can be made into a high-back specification.

Furthermore, according to the sofa according to the eighth side surface, in addition to any of the above configurations, the highback cushion is placed on the upper surface of the sofa body with the highback support frame in the stored posture. It can be used as a cushion. With the above configuration, it can be used as a cushion for high back while being used as a cushion in normal times, and can be used as a cushion for high back when the specifications are high back, and the configuration can be simplified by standardizing the members. Especially when the low-back specification is used, it can be used as a normal cushion, so not only does it not need to prepare a separate cushion for the high-back, but it also eliminates the need to clean up the cushion for the high-back, which has the advantage of being able to be used as a cushion without waste. Be done.

It is an exploded perspective view with the enlarged view of the main part which shows the state which the high back support frame is in a storage posture of the sofa which concerns on Embodiment 1 of this invention. It is a top view of the sofa body of FIG. FIG. 2 is a sectional view taken along line III-III of the sofa body of FIG. FIG. 5 is an exploded perspective view with an enlarged view of a main part showing a state in which the high-back support frame of FIG. FIG. 5A is a vertical cross-sectional view of the backrest portion showing a state in which the high back support frame is in the retracted posture, and FIG. 5B is a vertical cross-sectional view of the backrest portion showing a state in which the high back support frame is in the deployed posture. It is a perspective view which shows the high back support frame of FIG. It is a side view which shows the high back support frame of FIG. FIG. 8A is a front view of the backrest portion showing another example of the connected state of the high back support frame and the backrest portion, and FIG. 8B is a front view of the backrest portion showing another example of the connected state of the high back support frame and the backrest portion. is there. FIG. 5 is an enlarged view of a main part and a perspective view with a cross-sectional view of the state in which the high-back support frame of FIG. It is a perspective view which shows the sofa main body which concerns on Embodiment 2. 11A is a perspective view showing a state in which the high back support frame according to the third embodiment is in a retracted posture, and FIG. 11B is a perspective view showing a state in which the high back support frame is in a deployed posture. It is a perspective view which shows the sofa which concerns on Embodiment 4. It is a perspective view which shows the plug-in type headrest of the conventional sofa.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiments shown below are examples for embodying the technical idea of the present invention, and the present invention is not specified as the following. In addition, the present specification does not specify the members shown in the claims as the members of the embodiment. In particular, the dimensions, materials, shapes, relative arrangements, and the like of the components described in the embodiments are not intended to limit the scope of the present invention to the specific description unless otherwise specified, and are merely explanatory examples. It's just that. The size and positional relationship of the members shown in each drawing may be exaggerated to clarify the explanation. Further, in the following description, members of the same or the same quality are shown with the same name and reference numeral, and detailed description thereof will be omitted as appropriate. Further, each element constituting the present invention may be configured such that a plurality of elements are composed of the same member and the plurality of elements are combined with one member, or conversely, the function of one member is performed by the plurality of members. It can also be shared and realized.
(Embodiment 1)

The sofa 100 according to the first embodiment of the present invention is shown in FIGS. 1 to 9. In these figures, FIG. 1 is an exploded perspective view of the sofa according to the first embodiment of the present invention with an enlarged view of a main part showing a state in which the high back support frame is in a stored posture, and FIG. 2 is a plan view of the sofa body of FIG. 3 is a sectional view taken along line III-III of the sofa body of FIG. 2, FIG. 4 is an exploded perspective view with an enlarged view of a main part showing a state in which the high back support frame of FIG. 1 is in the deployed posture, and FIG. 5A is an exploded perspective view of the high back support frame. A vertical cross-sectional view of the backrest portion showing the stored posture, FIG. 5B is a vertical cross-sectional view of the backrest portion showing the high back support frame in the deployed posture, and FIG. 6 is a perspective view showing the high back support frame of FIG. 7 is a side view showing the high-back support frame of FIG. 6, FIG. 8A is a front view of the backrest portion showing another example of the connection state between the high-back support frame and the backrest portion, and FIG. 8B is the connection between the high-back support frame and the backrest portion. A front view of the backrest portion showing another example of the state, and FIG. 9 shows an enlarged view of the main part and a perspective view with a cross-sectional view of the state in which the high back support frame of FIG. 1 is in the deployed posture as viewed from the back.

As shown in FIG. 1, the sofa 100 can be attached to and detached from a sofa body 10 having a backrest portion 11 and a plate-shaped seat portion 12, a backrest cushion 20 that can be placed on the backrest portion 11, and a bottom surface of the sofa body 10. A leg portion 30 to be mounted on the seat portion 12 and a seat cushion 50 that can be placed on the seat portion 12 are provided. The surfaces of the sofa body 10, the back cushion 20 and the seat cushion 50 are covered with a flexible sofa cover such as non-woven fabric, leather, or vinyl.
(Sofa body 10)

As shown in FIG. 2, the sofa body 10 has a rectangular shape including a pair of long sides, the first side 10a, and 10a, and a pair of short sides, the second sides 10b and 10b, in a plan view. Then, the backrest portion 11 is provided on one first side 10a side. Further, the sofa body 10 may be provided with a pair of seat side side portions 13 and 13 on a pair of second sides 10b and 10b. By providing the pair of seat side portions 13 and 13, the side portion of the seat portion 12 becomes one step higher than the seat surface, and the end surface of the seat cushion 50 can be blocked like a wall. As a result, it is possible to prevent the seat cushion 50 from shifting to the outside of the sofa body 10. However, the shape of the sofa body of the present invention is not particularly limited, and various shapes such as a square shape and a trapezoidal shape can be selected in a plan view.
(Backrest 11)

As shown in FIG. 3, the backrest portion 11 is erected upward from the upper surface of the plate-shaped seat portion 12. Further, a pair of slits 14, 14 which are storage portions for accommodating the high back support frame 40 shown in FIG. 1 are formed inside the backrest portion 11 from the backrest surface 11a on the seat portion 12 side of the backrest portion 11. The pair of slits 14, 14 are formed parallel to each other in a vertical posture. The inner walls 14a and 14a provided inside the pair of slits 14 and 14 and the inner walls 14b and 14b provided outside are provided, respectively. By using the slits 14 and 14 in the storage portion, the high back support frame can be efficiently stored in a small storage space. Furthermore, it is not noticeable in appearance and can prevent deterioration of appearance. In particular, the groove at the back of the slit is not always exposed, but the slit is made flexible and cushioned so that the slit is normally closed and looks like a line at first glance. When the high back support frame 40 is housed, the groove appears by pushing it into the slit, so that the groove is hard to be exposed even though the slit is provided, and the deterioration of the appearance can be reduced. In the example of FIG. 1 and the like, the slit 14 is shown in a clear groove shape for easy understanding of the explanation, but it is preferable that the slit 14 is actually visually recognized as a streak in which the groove is filled. This also applies to the following drawings.

Further, as shown in the cross-sectional view of FIG. 3, the backrest portion 11 may be provided with a protruding portion 11b at the bottom portion in contact with the seat portion 12. The seat cushion 50 can be placed on the seat 12 along the protrusion 11b, the seat cushion 50 can be easily positioned, and the seat cushion 50 fits well in the sofa body 10. The backrest portion 11 has a side view table shape as shown by the broken line in FIG. The backrest surface 11a is provided so as to be inclined with respect to the surface of the seat portion 12. Since the backrest surface 11a is inclined, when the user sits down, the body naturally tilts backward, leading to a relaxing posture. The backrest portion 11 has a thickness sufficient to accommodate the high back support frame 40 in the direction orthogonal to the backrest portion 11. More specifically, the length of the trapezoidal upper base D1 of the backrest portion 11 is about 5 cm to 15 cm, and the length of the lower base D2 is about 15 cm to 25 cm. However, the backrest surface of the present invention is not limited to a shape that is inclined with respect to the surface of the seat portion 12, and the backrest surface and the surface of the seat portion 12 may be orthogonal to each other.

Further, as shown in the plan view of FIG. 2, a pair of backrest side portions 15 and 15 may be provided at both ends of the backrest portion 11 so as to be orthogonal to the backrest portion 11. By providing the pair of backrest side portions 15 and 15, the side portions of the backrest portion 11 project forward one step, and the end surface of the backrest cushion 20 mounted on the backrest portion 11 can be blocked like a wall. .. As a result, it is possible to prevent the backrest cushion 20 from shifting to the outside of the sofa body 10. The backrest side portions 15 and 15 may be formed as separate members or integrally with the seat side side portions 13 and 13.
(High back support frame 40)

The sofa body 10 of FIG. 1 has three seats. The backrest portion 11 is provided with three high-back support frames 40, which can be switched between the storage posture shown in FIGS. 1 and 5A and the deployment posture shown in FIGS. 4 and 5B, side by side. As shown in FIG. 6, the highback support frame 40 has an elongated rod shape and is substantially U-shaped in a plan view. The high back support frame 40 is preferably made of metal. This is because metal has excellent rigidity and durability. However, the high back support frame 40 of the present invention is not limited to metal. For example, other materials such as resin and carbon may be selected. The highback support frame 40 includes a pair of rotating portions 41, 41 and an inserting portion 42. The pair of rotating portions 41, 41 are provided on both end sides of the highback support frame 40. Each of the rotating portions 41 and 41 is embedded in the backrest portion 11 so as to be rotatable about a rotation axis. The insertion portion 42 extends from the rotating portions 41, 41 to the outside of the backrest portion 11 through the slits 14, 14 in a state where the high back support frame 40 is in the deployed posture, and the high back cushion 60 shown in FIG. To insert.

As shown in FIG. 6, the insertion portion 42 is substantially U-shaped. The insertion portion 42 includes a pair of first members 42a and 42a and a second member 42b. The second member 42b is provided between the pair of first members 42a and 42a, and connects the pair of first members 42a and 42a. The highback support frame 40 may further include a pair of bent portions 43, 43 between the rotating portions 41, 41 and the insertion portion 42. The pair of bent portions 43, 43 are curved in a substantially curved shape so as to project from the slits 14 and 14 to the outside of the backrest portion 11 in a state where the high back support frame 40 is in the deployed posture. The position of the high-back cushion 60 can be adjusted depending on the shapes of the bent portions 43 and 43 and the degree of protrusion, which will be described in detail later.

The rotating portions 41, 41 of the present invention are not particularly limited as long as the highback support frame 40 can be rotatably attached to the backrest portion 11. In the present embodiment, as shown in the side view of FIG. 7, plate-shaped rotating portions 41, 41 are provided at the ends of the bent portions 43, 43. The rotating portions 41, 41 are provided with openings 44, 44 having a central axis orthogonal to the axial direction of the bent portions 43, 43. Then, as shown in the partially enlarged view of FIG. 4, a pair of plate-shaped members 16 and 16 embedded in a vertical posture are provided in the portions corresponding to the rotating portions 41 and 41 of the inner walls 14b and 14b of the slits 14 and 14. It is provided. Further, the pair of plate-shaped members 16 and 16 are provided with insertion holes 16a and 16a, respectively. Then, the highback support frame 40 can be rotatably attached to the backrest portion 11 by screwing the opening 44 of the rotating portion 41 and the insertion hole 16a of the plate-shaped member 16 with screws or the like. The configuration in which the high back support frame 40 is rotatably attached to the backrest portion 11 is not limited to the above. For example, the rotating portions 41, 41 may be provided on the inner walls 14a, 14a side.

Further, as shown in FIG. 8A as a modification, the ends of the bent portions 43B and 43B of the high back support frame 40B are bent outward so as to be orthogonal to the bent portions 43B and 43B, and the rotating portion 41B. , 41B may be used. In this case, a plate-shaped member 16 is provided at a position corresponding to the rotating portion 41B of the inner wall 14b in each slit 14, and the rotating portions 41B and 41B are inserted into the insertion holes 16a and 16a to form the highback support frame 40B. Can be rotatably attached to the backrest portion 11. Furthermore, as another modification, as shown in FIG. 8B, the ends of the bent portions 43C and 43C of the highback support frame 40C are bent inward so as to be orthogonal to the bent portions 43C and 43C. The rotating portions 41C and 41C may be used. In this case, a plate-shaped member 16 is provided at a position corresponding to the rotating portion 41C of the inner wall 14a in each slit 14, and the rotating portions 41C and 41C are inserted into the insertion holes 16a and 16a to form the highback support frame 40. Can be rotatably attached to the backrest portion 11.

By incorporating the highback support frame 40 into the backrest portion 11 in a rotatable state in this way, it is not necessary to manage the separate member as compared with the mode of preparing the plug-in type headrest of the separate member, and the headrest is immediately required when necessary. You can use it, and you can store it compactly when you don't need it. In addition, by incorporating the high-back function into the sofa in advance, it is possible to provide the high-back function as standard without purchasing a separate plug-in headrest.

In the state where the high back support frame 40 is in the stored posture, most of the high back support frame 40 is stored in the slits 14 and 14. That is, as shown in FIG. 1, the first members 42a, 42a and the bent portions 43, 43 of the insertion portion 42 of the highback support frame 40 are housed inside the slits 14, 14, while the second insertion portion 42. The member 42b is exposed on the backrest surface 11a of the backrest portion 11. Then, by grasping the exposed second member 42b and lifting it up to the upper part of the backrest portion 11, the high back support frame 40 can be in the deployed posture shown in FIG.

Here, as shown in FIGS. 4 and 5, the backrest portion 11 may be provided with a pair of rod-shaped stoppers 17 and 17 in the slits 14 and 14. The stoppers 17 and 17 can regulate the high back support frame 40 from rotating further while the high back support frame 40 is housed in the slits 14 and 14. As a result, it is possible to prevent the highback support frame 40 from being sunk into the backrest more than necessary. Further, when deploying the highback support frame 40, the positions of the stored state can be defined in advance by the stoppers 17 and 17 so that the user can easily hold the highback support frame 40 by hand.

Further, in the state where the high back support frame 40 shown in FIG. 4 is in the deployed posture, the high back support frame 40 is projected above the backrest portion 11, and the high back cushion 60 of another member can be connected to the high back instruction frame 40. .. More specifically, in the state where the high-back support frame 40 is in the unfolded posture, the curved bent portions 43, 43 project to the front of the backrest surface 11a through the slits 14, 14. Then, the first sides 42a, 42a of the insertion portion 42 extend upward from the tips of the bent portions 43, 43. Further, the second side 42b of the insertion portion 42 is provided between the first sides 42a and 42a, and connects the ends of the first sides 42a and 42a. In this way, with the high back support frame 40 pulled up above the backrest portion 11, the backrest cushion 20 is placed on the backrest surface 11a. Then, by inserting the insertion portion 42 into the pocket-shaped connecting portion 61 opened downward and provided on the back surface of the high back cushion 60 shown in FIG. 9, the high back cushion 60 is inserted into the high back instruction frame 40. It can be connected and the high back cushion 60 can be held above the backrest cushion 20.

With the above configuration, when the high back specification is adopted, the high back cushion 60 can be held above the backrest cushion 20 by switching the high back support frame 40 to the deployed posture. On the other hand, in the case of the low back specification, by switching the high back support frame 40 to the storage posture, it can be used as a low back specification sofa without a high back. That is, it is possible to store the high back support frame 40 when the high back is not used, and to deploy the high back support frame 40 only when necessary, and it is possible to switch between a sofa with a high back and a sofa without a high back with one sofa. , You get the advantage of being convenient to use. Further, the high back support frame 40 is incorporated in the sofa main body 10 without being a separate member so that the high back support frame 40 can be stored in the sofa main body 10 when the high back is not used. As a result, it is not necessary to put away the high back support frame 40 in another place, so that it is not necessary to secure an extra storage space, and there is an advantage that convenience is enhanced.

Here, since the bent portion 43 has a curved shape, the bent portion 43 extends upward in a gentle curved shape through the slit 14 with the high back support frame 40 in the unfolded posture, and extends upward on the first side. Intersect with 42a. Then, as shown in FIG. 9, when the high back support frame 40 is designed so that the intersection P of the bent portion 43 and the first side 42a is slightly lower than the upper surface 20a of the backrest cushion 20, as shown in the cross-sectional view. The bent portion 43 and the intersection P portion press the upper surface 20a of the soft backrest cushion 20 and are slightly buried. That is, the upper surface 20a can be pressed from above by the bent portion 43 and the intersection P, and the backrest cushion 20 can be stably held. Further, the intersection P is set to be within the thickness range of the backrest cushion 20. That is, by preventing the backrest cushion 20 from protruding from the surface, it is possible to avoid a situation in which a part of the high back support frame 40 hits the back of the head and feels uncomfortable when the user adopts the high back specification. With such a configuration, the backrest cushion 20 can be held in a fixed position without being displaced during use. Then, the high-back cushion 60 is held on the upper part of the backrest cushion 20, and there is an advantage that the high-back specification sofa can be stably used in the positioned state. That is, the low-back sofa can be used as a high-back sofa by stably holding the backrest cushion 20 and the high-back cushion 60 with the high-back support frame 40 in the deployed posture.

Further, the position of the high back cushion 60 can be adjusted according to the shape of the bent portion 43 and the insertion portion 42 and the degree of protrusion. For example, with the highback support frame 40 in the unfolded posture, as the amount of protrusion of the bent portion 43 in the forward direction increases, the position of the highback cushion 60 also moves away from the backrest portion 11. On the other hand, as the amount of protrusion of the bent portion 43 becomes smaller, the high-back cushion 60 approaches the backrest portion 11 side. Furthermore, the sharper the angle θ formed by the bent portion 43 and the first side 42a of the insertion portion 42 shown in FIG. 9, the higher the back cushion 60 is tilted toward the backrest portion 11. On the other hand, as the angle θ becomes obtuse, the high-back cushion 60 tilts toward the seat portion 12. Furthermore, if the radius of curvature of the curve of the bent portion 43 becomes large, the degree of curvature becomes loose, so that the highback cushion 60 is tilted toward the backrest portion 11. On the other hand, if the radius of curvature becomes smaller, the degree of curvature becomes steeper, so that the high-back cushion 60 tilts toward the seat portion 12. However, in the present embodiment, the bent portion 43 is curved, but the bent portion of the present invention is not limited to the curved shape. For example, various shapes such as an L-shape consisting of two straight lines can be adopted.
(Cushion 60 for high back)

The shape of the high back cushion 60 is not particularly limited. For example, in the present embodiment, as shown in FIG. 9, it has a substantially rectangular shape in a plan view having a size capable of supporting the back of the head of the user. This is because a rectangular cushion makes it easy to wrap and support the back of the head like a pillow. Like the sofa body 10, the backrest cushion 20, and the seat cushion 50, the surface of the high back cushion 60 is covered with a flexible sofa cover such as non-woven fabric, leather, or vinyl. Further, the high-back cushion 60 is provided on the back surface and includes a pocket-shaped connecting portion 61 which is opened downward. Then, the highback cushion 60 can be connected to the highback support frame 40 by inserting the insertion portion 42 of the highback support frame 40 upward into the pocket-shaped connecting portion 61 opened downward. That is, the highback cushion 60 can be easily connected to the highback support frame 40 simply by providing the pocket-shaped connecting portion 61 opened downward.

However, the method of connecting the highback cushion 60 to the highback support frame 40 is not limited to the pocket-shaped connecting portion 61 opened downward. A strap or the like provided on the back surface of the highback cushion 60 may be wrapped around the insertion portion 42 of the highback support frame 40 and connected by button fastening, etc., fastened with Velcro, provided with a fixing belt, and the like. The method can be adopted.

As shown in FIG. 1, the high-back cushion 60 can be used as a cushion placed on the upper surface of the sofa body 10 with the high-back support frame 40 in the stored posture. As a result, it can be used as a cushion in the normal state, but can be used as a cushion for receiving the head for the high back when the high back specification is used, and the configuration can be simplified by standardizing the members. Especially when the low-back specification is used, it can be used as a normal cushion, so not only does it not need to prepare a separate cushion for the high-back, but it also eliminates the need to clean up the cushion for the high-back, which has the advantage of being able to be used as a cushion without waste. Be done.
(Embodiment 2)

Here, in the first embodiment, a pair of slits 14 and 14 are provided as a storage portion. However, the storage portion of the present invention is not limited to the pair of slits 14, 14. For example, as a storage portion according to the sofa 200 of the second embodiment, as shown in FIG. 10, a U-shaped slit 14D is formed inward from the backrest surface 11d of the backrest portion 11D. With the U-shaped slit 14D, the second member 42b of the insertion portion 42 can be housed in the slit 14D without being exposed on the backrest surface 11d. Further, in this case, a structure for the user to switch from the stored state to the expanded state may be added as needed. For example, a string is attached to the second member 42b so that the string extends from the slit in the stored state. As a result, the user can easily pull out the high back support frame 40D from the slit by pulling the string.
(Embodiment 3)

Further, as shown in FIGS. 11A and 11B, the high back support frame 40E according to the sofa 300 of the third embodiment is not provided with the bent portion 43, and is a high back support frame having a shape along the backrest surface 11e of the backrest portion 11E. .. With such a shape, the high back support frame 40E can be placed on the backrest surface 11e without protruding. In this case, even if the storage portion is not provided, the high back support frame 40E is exposed on the backrest surface 11e, and the backrest cushion 20 is placed on the high back support frame 40E and the backrest surface 11e, whereby the high back support frame 40E is placed. Can be obscured. Further, since the high back support frame 40E does not protrude from the backrest surface 11e, even if the user leans against the backrest cushion 20, the high back support frame 40E is placed on the backrest surface 11e, which makes the user feel uncomfortable. You can avoid the situation where you feel. Therefore, since it is not necessary to provide a storage portion, the sofa body can be easily manufactured.
(Embodiment 4)

On the other hand, the number of high back support frames 40 can be set as appropriate. For example, in the sofa 100 according to the first embodiment shown in FIG. 1, the number of high back support frames 40 on the first side 10a is set to three, but the present invention does not limit the number of high back support frames 40 to this number. .. The number of highback support frames 40 can be increased or decreased depending on the needs. Further, for example, in the sofa 400 according to the fourth embodiment shown in FIG. 12, one high back support frame 40 is provided on the backrest portion 11F. As a result, the sofa for one person can also be made into a high-back specification.

The sofa according to the present invention can be suitably used as a sofa for home use, office use, public facilities such as a waiting room for public transportation, and the like.

100, 200, 300, 400 ... Sofa 10 ... Sofa body 10a ... Long side of sofa body 10b ... Short sides of sofa body 11, 11D, 11E, 11F ... Backrest 11a, 11d, 11e ... Backrest surface 11b ... Projection 12 ... Seat 13 ... Seat side side 14, 14D ... Slit 14a, 14b ... Slit inner wall 15 ... Backrest side 16 ... Plate-shaped member 16a ... Insertion hole 17 ... Stopper 20 ... Back cushion 20a ... Top surface 30 ... Legs 40, 40B, 40C, 40D, 40E ... High back support frames 41, 41B, 41C ... Rotating part 42 ... Insertion part 42a ... First member 42b ... Second member 43, 43B, 43C ... Bent part 44 ... Opening 50 ... Cushion for seat 60 ... Cushion for high back 61 ... Connecting part 90 ... Headrest cushion 91 ... Frame body D1 ... Length of trapezoidal upper bottom D2 ... Length of trapezoidal lower bottom P ... Bent part and first Intersection of one side θ: The angle between the bent part and the first side of the insertion part

Claims (8)

The sofa body with the backrest and
A backrest cushion that can be placed on the backrest and
It is a sofa equipped with
The sofa body is provided with a high-back support frame on the backrest that can be switched between a storage posture and a deployment posture.
In the state where the high back support frame is in the storage posture, the high back support frame is folded so as not to protrude from the backrest portion.
A sofa in which the high-back support frame is in the deployed posture, the high-back support frame is projected above the backrest portion, and a high-back cushion of another member can be connected to the high-back instruction frame. The sofa according to claim 1.
The high-back support frame has a U-shape in a plan view, and both ends of the high-back support frame are rotatably attached to the backrest portion.
The backrest portion is a sofa forming a storage portion for storing the high back support frame in a state where the high back support frame is in a storage posture. The sofa according to claim 2.
A sofa in which the storage portion is a slit formed in the backrest portion. The sofa according to claim 2 or 3.
The high back support frame
Rotating portions provided on both ends of the highback support frame and rotatable around a rotating shaft embedded in the backrest portion, and
With the highback support frame in the unfolded posture, an insertion portion extending from the rotating portion to the outside of the backrest portion and inserting the highback cushion.
Sofa with. The sofa according to claim 4.
The insertion part
A pair of first members whose one end side is connected to the rotating portion,
A second member provided between the pair of first members and connecting the other ends of the pair of first members,
Sofa with. The sofa according to claim 5.
The high back support frame further
A pair of bent portions are provided between the rotating portion and the inserting portion.
The pair of bent portions is a sofa configured to press the upper part of the backrest cushion placed on the backrest portion with the high back support frame in the unfolded posture. The sofa according to any one of claims 1 to 6.
In a plan view, the sofa body has a rectangular shape consisting of a pair of long sides, a first side, and a pair of short sides, a second side.
The backrest portion is provided on one side of the pair of first sides.
A sofa in which a plurality of high-back support frames are mounted side by side on the backrest portion. The sofa according to any one of claims 1 to 7.
The high-back cushion is a sofa that can be used as a cushion placed on the upper surface of the sofa body in a state where the high-back support frame is in a stored posture.