JP3208798U - Support structure and seat chair or sofa provided with the support structure - Google Patents

Abstract

A support structure capable of stably and comfortably supporting a user according to the orientation of the user's body, and a seat chair or sofa provided with the support structure. A support structure includes a seat frame and a back frame that is connected to the seat frame so that an angle of the frame can be changed. The seat frame 30 includes a seat main frame 30A, and seat auxiliary frames 35 and 36 provided on the left and right sides of the user in the seat main frame 30A. The angle between the frames 35 and 36 can be changed. The back frame 40 includes a back main frame 40A, and back assist frames 45 and 46 provided on the left and right sides of the user in the back main frame 40A. The back main frame 40A, the back assist frames 45 and 46, and The angle between can be changed. [Selection] Figure 2

Description

  The present invention relates to a support structure including a seat frame and a backrest frame, and a seat chair or a sofa including the support structure.

  For example, a seat chair provided with a seat portion and a backrest as disclosed in Patent Document 1 is widely used in daily life. Such a seating chair usually has a support structure as a skeleton, and the support structure includes a seat frame and a back frame corresponding to the seat and the back. When the user sits on the seat, the user's body is supported by the seat frame and the back frame.

Japanese Patent Laying-Open No. 2015-223273

When a user uses the above-mentioned seat chair, he / she usually sits in a direction substantially perpendicular to the backrest.For example, when sitting for a long time, the user changes his / her posture and changes his / her body orientation. You may want to change to other directions, such as left and right. However, in the conventional seat chair as described in the above document, the seat and the support surface of the backrest are fixed, and when the user changes the direction of the body, the user is stably and comfortably provided. I couldn't support it.
An object of the present invention is to provide a support structure capable of stably and comfortably supporting a user according to the orientation of the user's body, and a seat chair or a sofa including the support structure. .

In order to achieve the above object, the support structure of the present invention is a support structure pair comprising a seat frame and a back frame that is connected to the seat frame so that the angle can be changed. A seat part main frame; and a seat part auxiliary frame provided on at least one of the left and right sides of the user in the seat part main frame, the seat part main frame and the seat part auxiliary frame The backrest frame includes a backrest main frame and a backrest auxiliary frame provided on at least one of the left side and the right side of the user in the backrest main frame. An angle between the frame and the back support frame can be changed.
According to such a configuration, the angle between the seat main frame and the seat auxiliary frame can be changed, and the angle between the back main frame and the back assist frame can be changed. In the seat and back of the seat chair or sofa provided with this support structure, the portions corresponding to the seat support frame and the back support frame, i.e., the left and right ends of the seat and the back support are arranged at an appropriate angle with respect to themselves. Can be adjusted. Thereby, compared with the case where a user's body is supported only by a seat part main frame and a backrest main frame, a user's body can be supported in more directions. As a result, the user's body can be stably and comfortably supported in accordance with the direction.

It is preferable that the backrest auxiliary frame is provided on each of right and left sides of the user in the backrest main frame.
According to this configuration, both the left and right end portions of the backrest can be adjusted to an appropriate angle with respect to the user, so that the user can be supported more stably and comfortably.

The seat auxiliary frame is preferably provided on each of the left and right sides of the user in the seat main frame and the back main frame.
According to this configuration, both the left and right end portions of the seat portion can be adjusted to an appropriate angle with respect to the user, so that the user can be supported more stably and comfortably.

The seat main frame is composed of a first left frame and a first right frame arranged along the left-right direction of the user, and the first left frame and the first right frame are formed by a first variable angle mechanism. The included angle is coupled to the change angle, and the backrest main frame is configured by a second left frame and a second right frame arranged along the left-right direction of the user, and the second left frame and the second frame The depression angle of the right frame can be changed by a second angle variable mechanism, and the first angle variable mechanism and the second angle variable mechanism can be provided at corresponding positions in the left-right direction of the user. More preferred.
According to such a configuration, the backrest corresponding to the backrest frame and the left and right portions of the seat corresponding to the seat frame can be folded along the first angle variable mechanism and the second angle variable mechanism. Therefore, when storing a seat chair and a sofa provided with this support structure, the degree of freedom can be increased and the space for storage can be saved.

It is preferable that the depression angle between the 1 left frame and the 1 right frame and the 2 left frame and the 2 right frame can be changed within a range of 0 ° to 180 °.
According to such a configuration, the backrest and the left and right portions of the seat portion can be folded to a state where they are completely overlapped, and the seat chair and sofa provided with this support structure can be stored more compactly.

  A seat chair or a sofa according to the present invention is constituted by the support structure described above and a cushion portion that is covered by the support structure.

The perspective view which shows the state by which the sofa concerning this invention was expand | deployed planarly. The top view which shows the state by which the support structure concerning this invention was expand | deployed planarly. The side view of a support structure at the time of seeing along the X direction of FIG. The side view of a support structure at the time of seeing along the Y direction of FIG. The perspective view which shows the use condition of the sofa. The perspective view which shows the storage state of the sofa.

  Hereinafter, an embodiment of a support structure according to the utility model and a sofa including the support structure will be described. As shown in FIGS. 1 and 2, the sofa 1 includes a support structure 1 </ b> A that is provided inside the sofa 1 and serves as a skeleton, and a cushion body 1 </ b> B that covers the entire support structure 1 </ b> A. The sofa 1 also includes a seat 10 and a backrest 20. The seat portion 10 includes a main seat portion 11 and auxiliary seat portions 11A and 11B. The auxiliary seat portions 11A and 11B are provided on the left side and the right side of the user in the main seat portion 11, respectively. The backrest 20 includes a main backrest 21 and auxiliary backrests 21A and 21B. The auxiliary backrests 21A and 21B are provided on the left and right sides of the user in the main backrest 21, respectively.

  As shown in FIG. 2, the support structure 1 </ b> A includes a seat frame 30 corresponding to the seat 10 and a back frame 40 corresponding to the back 20. The seat frame 30 and the back frame 40 are made of a hard material such as an aluminum alloy.

  The seat frame 30 includes a seat main frame 30A. The seat main frame 30A includes L-shaped first to fourth members 31 to 34 and has a substantially rectangular shape in plan view. When the sofa 1 is placed on the floor, the seat main frame 30A is in parallel with the floor. The first member 31 and the third member 33 are fixed by welding or rivets to constitute a first left frame. The second member 32 and the fourth member 34 are fixed by welding or rivets to constitute a first right frame.

  The first member 31 and the second member 32 include a hinge mechanism 31a fixed to the first member 31, a hinge mechanism 32a fixed to the second member 32, and an intermediary member 37 that connects these hinge mechanisms 31a and 32a. Connected by. By the hinge mechanisms 31a and 32a, the first member 31 and the second member 32 can rotate within a range of 0 ° to 90 ° with respect to the mediating member 37, in other words, the first member 31 and the second member. The depression angle with 32 can be changed within a range of 0 ° to 180 °.

  The third member 33 and the fourth member 34 include a hinge mechanism 33a fixed to the third member 33, a hinge mechanism 34a fixed to the fourth member 34, and an intermediary member 38 that connects these hinge mechanisms 33a and 34a. Connected by. By the hinge mechanisms 33a and 34a, the third member 33 and the fourth member 34 can rotate within a range of 0 ° to 90 ° with respect to the mediating member 38, in other words, the third member 33 and the fourth member. The depression angle with 34 can be changed within a range of 0 ° to 180 °. Here, the hinge mechanisms 34a to 34d correspond to a first angle variable mechanism.

  With such a configuration, the first left frame constituted by the first member 31 and the third member 33 and the first right frame constituted by the second member 32 and the fourth member 34 are 0 ° with respect to each other. It can be rotated within a range of ˜180 °. A reinforcing member 39a is provided between the end of the first member 31 where the hinge mechanism 31a is provided and the end of the third member 33 where the hinge mechanism 33a is provided. In addition, a reinforcing member 39b is provided between the end of the second member 32 where the hinge mechanism 32a is provided and the end of the fourth member 34 where the hinge mechanism 34a is provided.

  As shown in FIGS. 2 to 4, a seat auxiliary frame 35 is provided on the right side of the user in the seat main frame 30 </ b> A. The seat auxiliary frame 35 is fixed to the seat main frame 30A by welding or rivets with a U-shaped rotating portion 35a, and includes two fixing portions 35b respectively corresponding to both ends of the rotating portion 35a. . An end portion (upper end portion) located on the upper side in FIG. 2 among both ends of the rotating portion 35a is connected to a corresponding fixing portion 35b via a hinge mechanism 35c, and FIG. 2 among both ends of the rotating portion 35a. An end portion (lower end portion) located on the lower side is connected to a corresponding fixing portion 35b via a hinge mechanism 35d. The hinge mechanism 35d includes a ratchet mechanism. By this hinge mechanism 35d, the lower end portion of the rotating portion 35a has an angle range α (150 ° to 180 ° in this embodiment) with respect to the fixed portion 35b, that is, the seat main frame 30A. ) And can be fixed at a predetermined angle in the angle range α. On the other hand, the hinge mechanism 35c is a free hinge and supports the upper end of the rotating portion 35a so as to freely rotate. According to such a configuration, the seat auxiliary frame 35 can be rotated with respect to the seat main frame 30A within an angle range α, and the user can set the seat auxiliary frame 35 with respect to the seat main frame 30A according to his / her preference. The position can be fixed at a predetermined angle within the angle range α.

  A seat auxiliary frame 36 is provided on the left side of the user in the seat main frame 30A. The seat portion auxiliary frame 36 also includes a rotating portion 36a, a fixed portion 36b, a hinge mechanism 36c that is a free hinge, and a hinge mechanism 36d including a ratchet mechanism, and the structure thereof is the same as that of the seat portion auxiliary frame 35. Therefore, the description is omitted.

  A plurality of support wires 70 are provided at substantially the same intervals in the left-right direction of the user over the entire seat frame 30. These support wires 70 extend along the front-rear direction of the user and have a function of supporting the user's body together with other members of the seat frame 30.

  In the seat frame 30, a backrest frame 40 is provided on the upper side in FIG. 2. The backrest frame 40 includes a backrest main frame 40A. The backrest main frame 40A includes L-shaped first to fourth members 41 to 44 and has a substantially rectangular shape in plan view. The first member 41 and the third member 43 are fixed by welding or rivets to constitute a second left frame. The second member 42 and the fourth member 44 are fixed by welding or rivets to constitute a second right frame.

  The first member 41 and the second member 42 include a hinge mechanism 41a fixed to the first member 41, a hinge mechanism 42a fixed to the second member 42, and an intermediary member 47 that connects these hinge mechanisms 41a and 42a. Connected by. By the hinge mechanisms 41a and 42a, the first member 41 and the second member 42 can rotate within a range of 0 ° to 90 ° with respect to the mediating member 47, in other words, the first member 41 and the second member. The depression angle with 42 can be changed within a range of 0 ° to 180 °.

  The third member 43 and the fourth member 44 include a hinge mechanism 43a fixed to the third member 43, a hinge mechanism 44a fixed to the fourth member 44, and an intermediary member 48 that connects these hinge mechanisms 43a and 44a. Connected by. By the hinge mechanisms 43a and 44a, the third member 43 and the fourth member 44 can rotate within the range of 0 ° to 90 ° with respect to the mediating member 48, in other words, the third member 43 and the fourth member. The depression angle with 44 can be changed within a range of 0 ° to 180 °. Here, the hinge mechanisms 44a to 44d correspond to a second variable angle mechanism.

  The hinge mechanisms 41a, 42a, 43a, 44a and the hinge mechanisms 31a, 32a, 33a, 34a in the seat frame 30 are provided at corresponding positions in the left-right direction of the user. More specifically, the hinge mechanisms 31a, 33a, 41a, 43a are located on the same straight line, and the hinge mechanisms 32a, 34a, 44a, 42a are located on the same straight line.

  With such a configuration, the second left frame formed by the first member 41 and the third member 43 and the second right frame formed by the second member 42 and the fourth member 44 are 0 ° with respect to each other. It can be rotated within a range of ˜180 °. A reinforcing member 49a is provided between the end of the first member 41 where the hinge mechanism 41a is provided and the end of the third member 43 where the hinge mechanism 43a is provided. Further, a reinforcing member 49b is provided between the end portion of the second member 42 where the hinge mechanism 42a is provided and the end portion of the fourth member 44 where the hinge mechanism 44a is provided.

  A plurality of support wires 70 are provided at substantially the same interval in the left-right direction of the user over the entire back frame 40. These support wires 70 extend substantially along the vertical direction of the user and have a function of supporting the user's body together with other members of the backrest frame 40.

  The first member 41 of the backrest main frame 40A is connected to the first member 31 of the seat main frame 30A via the hinge mechanism 51, and the second member 42 of the backrest main frame 40A is connected to the hinge mechanism 52. Via the second member 32 of the seat main frame 30A. These hinge mechanisms 51 and 52 are ratchet mechanisms. By these hinge mechanisms 51 and 52, the backrest main frame 40A (backrest frame 40) is within a predetermined angle range β (100 ° to 180 ° in this embodiment) with respect to the seat main frame 30A (seat frame 30). It is rotatably connected and can be fixed at a position at a predetermined angle in the angle range β. In other words, the backrest frame 40 is connected to the seat frame 30 so as to be rotatable along the front-rear direction of the user, and the user places the backrest frame 40 relative to the seat frame 30 according to his / her preference. The position can be fixed at a predetermined angle within the angle range β.

  A back support frame 45 is provided on the right side of the user in the main back frame 40A. The backrest auxiliary frame 45 is fixed to the backrest main frame 40A by welding or rivets, and has two fixed portions 45b corresponding to both ends of the rotation portion 45a. An end portion (upper end portion) located on the upper side of FIG. 2 among both ends of the rotating portion 45a is connected to a corresponding fixing portion 45b via a hinge mechanism 45c, and FIG. 2 among both ends of the rotating portion 45a. An end portion (lower end portion) located on the lower side is connected to a corresponding fixing portion 45b via a hinge mechanism 45d. The hinge mechanism 45c includes a ratchet mechanism. With this hinge mechanism 45c, the upper end portion of the rotating portion 45a has an angle range γ (150 ° to 180 ° in this embodiment) with respect to the fixed portion 45b, ie, the backrest main frame 40A. ) And can be fixed at a position at a predetermined angle in the angle range γ. On the other hand, the hinge mechanism 45d is a free hinge and supports the lower end of the rotating portion 45a so as to freely rotate. According to such a configuration, the backrest auxiliary frame 45 can rotate with respect to the backrest main frame 40A within an angle range γ, and the user can place the backrest auxiliary frame 45 within the angle range γ with respect to the backrest main frame 40A according to his / her preference. Can be fixed at a predetermined angle.

  A back assist frame 46 is provided on the left side of the user in the backrest main frame 40A. The backrest auxiliary frame 46 also includes a rotation part 46a, a fixed part 46b, a hinge mechanism 46d that is a free hinge, and a hinge mechanism 46c including a ratchet mechanism, and the structure thereof is the same as that of the backrest auxiliary frame 45. Description is omitted.

  As described above, the sofa 1 is configured by the support structure 1A that is provided inside and serves as a skeleton, and the cushion body 1B that covers the entire support structure 1A. Since the backrest frame 40 is rotatable with respect to the seat frame 30 within an angle range β, as shown in FIG. 5, when the user sits on the seat 10 and uses the sofa 1, the backrest 20 is moved. The angle between the backrest 20 and the seat portion 10 can be adjusted according to the user's preference by turning the user back and forth.

  Further, as described above, the user can fix the seat auxiliary frame 35, 36 at a predetermined angle within the angle range α with respect to the seat main frame 30A according to his / her preference. Further, the user can fix the back support frames 45 and 46 at a predetermined angle within the angle range γ with respect to the back main frame 40A according to his / her preference. Therefore, as shown in FIG. 5, the user can set the auxiliary seats 11A and 11B to the main seat 11 and the auxiliary backs 21A and 21B to the main back 21 at a predetermined angle according to his / her preference. Can be fixed in the position.

  In the present embodiment, since the angle range β is set to 100 ° to 180 °, the sofa 1 is adjusted to a flat shape (β = 180 °) and used as a bed as shown in FIG. Can do. In this case, by adjusting the angle between the auxiliary seat portions 11A, 11B and the main seat portion 11 and the angle between the auxiliary backrests 21A, 21B and the main backrest 20, these auxiliary seat portions 11A, 11B. The auxiliary backrests 21A and 21B can have a pillow function.

  The first left frame and the first right frame of the seat main frame 30A are rotatable with respect to each other within a range of 0 ° to 180 °, and the second left frame and the second right frame of the backrest main frame 40A. And can be rotated within a range of 0 ° to 180 ° with respect to each other. Further, the hinge mechanisms 41a, 42a, 43a, 44a in the backrest main frame 40A and the hinge mechanisms 31a, 32a, 33a, 34a in the seat frame 30 in the seat main frame 30A correspond to positions in the left-right direction of the user. Is provided. Therefore, the sofa 1 has a straight line in which the hinge mechanisms 31a, 33a, 41a, 43a are located and the hinge mechanisms 32a, 34a, 44a, 42a from the state adjusted to a flat shape as shown in FIGS. Along the straight line, the two symmetrical parts can be folded so as to overlap. FIG. 6 shows a state of the sofa 1 folded in this way.

According to the present embodiment, the following effects can be obtained.
(1) The angle between the seat auxiliary frames 35 and 36 and the seat main frame 30A can be changed within the range α, and the angle between the back assist frames 45 and 46 and the back main frame 40A is within the range γ. Since the user can change the seat 10 and the backrest 20 of the sofa 1, the portions corresponding to the seat support frames 35 and 36 and the back support frames 45 and 46, that is, the auxiliary seats 11A and 11B and the backrest 21A, 21B can be adjusted to an appropriate angle with respect to itself. Thereby, compared with the case where a user's body is supported only by seat part main frame 30A and backrest main frame 40A, a user's body can be supported in more directions. As a result, the user's body can be stably and comfortably supported in accordance with the direction.
(2) The left and right portions of the backrest 20 and the seat portion 10 are symmetric along the straight line where the hinge mechanisms 31a, 33a, 41a and 43a are located and the straight line where the hinge mechanisms 32a, 34a, 44a and 42a are located. It can be folded so that the two parts completely overlap. Therefore, when the sofa 1 is stored, the left and right portions of the backrest 20 and the seat portion 10 can be folded up to completely overlap, and the sofa can be stored compactly.

This embodiment can also be modified as follows.
In the above-described embodiment, the angle between the seat auxiliary frames 35 and 36 and the seat main frame 30A and the angle between the back assist frames 45 and 46 and the back main frame 40A can be adjusted to 150 ° to 180 °. However, the present invention is not limited to this, and the adjustable range of these angles may be set to other values.
In the above-described embodiment, the back assist frames 45 and 46 are provided on the left and right sides of the user in the main back frame 40A. However, the present invention is not limited to this, and any one of the left and right sides of the user in the back back main frame 40A is provided. Only the back support frame may be provided.
In the above-described embodiment, the seat auxiliary frames 35 and 36 are provided on the left and right sides of the user in the seat main frame 30A. However, the present invention is not limited to this, and any of the left and right sides of the user in the seat main frame 30A is provided. You may provide the seat part auxiliary | assistant frames 35 and 36 only in one.
In the above-described embodiment, the left and right portions of the backrest 20 and the seat portion 10 can be folded by the first angle variable mechanism and the second angle variable mechanism so that the two symmetrical parts are completely overlapped. However, the present invention is not limited to this, and the first angle variable mechanism and the second angle variable mechanism may be omitted if the degree of freedom in storage is not high. Moreover, you may employ | adopt the structure which can fold to the state which the backrest 20 and the right and left both parts of the seat part 10 do not overlap completely, and have a predetermined angle.
-Although the above-mentioned embodiment illustrated the case where this invention was applied to a support structure and a sofa provided with this support structure, this invention can also be applied to a seat chair provided with such a support structure. When the present invention is applied to a seat chair provided with the above support structure, the same effect can be obtained.

Claims (6)

In a support structure pair comprising a seat frame and a back frame that is connected to the seat frame so that the angle can be changed,
The seat frame includes a seat main frame, and a seat auxiliary frame provided on at least one of the left and right sides of the user in the seat main frame, the seat main frame and the seat The angle between the part auxiliary frame can be changed,
The back frame includes a back main frame and a back assist frame provided on at least one of the left side and the right side of the user of the back main frame, and the back frame is between the back main frame and the back assist frame. The support structure characterized in that the angle of the can be changed. The support structure according to claim 1,
The backrest auxiliary frame is provided on each of the left and right sides of the user in the backrest main frame. The support structure according to claim 1 or 2,
The support structure according to claim 1, wherein the seat part auxiliary frame is provided on each of right and left sides of the user in the seat part main frame and the backrest main frame. The support structure according to any one of claims 1 to 3,
The seat main frame is composed of a first left frame and a first right frame arranged along the left-right direction of the user, and the first left frame and the first right frame are formed by a first variable angle mechanism. The included angle is connected to the change angle,
The backrest main frame is constituted by a second left frame and a second right frame arranged along the left-right direction of the user, and the second left frame and the second right frame are inclined by a second angle variable mechanism. Are variably linked,
The first angle varying mechanism and the second angle varying mechanism are provided at corresponding positions in the left-right direction of the user. The support structure according to claim 4,
The depression angle between the 1 left frame and the 1 right frame, and the 2 left frame and the 2 right frame can be changed within a range of 0 ° to 180 °.   A sitting chair or a sofa configured by the support structure according to any one of claims 1 to 5 and a cushion portion covered with the support structure.

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