JP2016013237A - Reclining chair and massage machine including the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reclining chair where the rear space of a chair required for reclining a backrest is reduced, and also to provide a massage machine including the chair.SOLUTION: A reclining chair 10 includes: a base frame 20 constituting the base of a seat 11; a seat frame 30 to be movable in a front and rear direction with respect to the base frame 20; and a back frame 50 connected to the seat frame 30 so as to be turned with respect to the base frame 20 while moving in the front and rear direction in connection with the seat frame 30. The chair also includes: seat rails 25 fixed to the base frame 20 and extending in the front and rear direction with respect to the base frame 20; seat travel tools 34 supported by the seat rails 25 so as to be travel in the front and rear direction with respect to the seat rails 25 and also attached to the seat frame 30; and connection frames for allowing the base frame 20 and the seat frame 30 to be mutually connected so as to be moved or turned in the front and rear direction with respect to the base frame 20.

Description

  The present invention relates to a reclining chair and a massage machine including the same.

  A reclining chair that changes the posture of a user by reclining a backrest is known. Patent Document 1 discloses an example of a reclining chair.

JP 2002-17494 A

  In the reclining chair of Patent Document 1, the upper end of the backrest moves to the rear of the chair as the backrest reclines. For this reason, it is necessary to provide a space for reclining the backrest in advance behind the chair. For this reason, in order to arrange the reclining chair in a room or the like, a large space is required.

  The objective of this invention is providing the reclining chair which makes small the space behind the chair required in order to recline a backrest, and a massage machine provided with the same.

  According to one embodiment of the reclining chair, a base frame that constitutes the base of the seat, a seat frame that can move in the front-rear direction with respect to the base frame, and a front-rear direction with respect to the base frame in conjunction with the seat frame A back frame connected to the seat frame so as to be able to rotate with respect to the base frame while moving to a seat frame; and a seat rail fixed to the base frame and formed to extend in the front-rear direction with respect to the base frame; A seat running tool supported by the seat rail and attached to the seat frame so as to be able to run in the front-rear direction with respect to the seat rail; and the base frame so as to be able to move or rotate in the front-rear direction with respect to the base frame. And a connection frame for connecting the seat frame to each other.

  According to one form of the reclining chair and the massage machine including the same, the space behind the chair required for reclining the backrest can be reduced.

The perspective view of the massage machine of Embodiment 1. FIG. FIG. 3 is a perspective view of a frame of the reclining chair according to the first embodiment. The side view of the frame of the reclining chair of Embodiment 1. FIG. The side view which shows the state which the reclining chair of Embodiment 1 reclining. The side view which shows the state which the reclining chair of Embodiment 1 reclined further. The side view of the frame of the reclining chair of Embodiment 2. FIG. The side view which shows the state which the reclining chair of Embodiment 2 reclining. The side view which shows the state which the reclining chair of Embodiment 2 reclined further. The side view of the frame of the reclining chair of a modification. The side view of the frame of the reclining chair of another modification. The side view of the frame of the reclining chair of another modification.

(An example of the form that the reclining chair can take)
[1] According to one embodiment of the reclining chair, a base frame constituting a base of the seat, a seat frame that can move in the front-rear direction with respect to the base frame, and the base frame in conjunction with the base frame A back frame connected to the seat frame so that it can rotate with respect to the base frame while moving in the front-rear direction, and is fixed to the base frame and extends in the front-rear direction with respect to the base frame. A seat rail, a seat running tool supported by the seat rail so as to be able to travel in the front-rear direction with respect to the seat rail, and attached to the seat frame, so that the base frame can move or rotate in the front-rear direction A connection frame that connects the base frame and the seat frame to each other;

  According to the above reclining chair, when the seat frame and the back frame are moved forward relative to the base frame, the seat traveling tool travels forward with respect to the seat rail, and the connection frame is forward with respect to the base frame. Move or rotate to. The back frame moves forward and rotates relative to the base frame. That is, the back frame rotates while moving the connecting portion with the seat frame toward the front. For this reason, it becomes difficult for the back frame to move backward relative to the base frame as the back frame rotates. For this reason, the space behind the chair necessary for reclining the backrest can be reduced.

  [2] According to one embodiment of the reclining chair, a base frame constituting a base of the seat, a seat frame that can move in the front-rear direction with respect to the base frame, and the base frame in conjunction with the base frame A back frame connected to the seat frame so as to be able to rotate with respect to the base frame while moving in the front-rear direction, and fixed to the seat frame and formed to extend in the front-rear direction with respect to the base frame. A seat rail, a seat traveling tool attached to the base frame, and a connection frame that connects the base frame and the seat frame to each other so as to move or rotate in the front-rear direction with respect to the base frame. Further, the seat rail is supported by the seat travel tool so that the seat rail can move in the front-rear direction with respect to the seat travel tool.

  According to the above reclining chair, an operation according to the operation of the reclining chair of the above [1] is formed. For this reason, the effect similar to the effect acquired by the reclining chair of said [1] is acquired.

  [3] According to one embodiment of the reclining chair, the connection frame is a rotating frame that connects the base frame and the seat frame to each other so that the connection frame can be rotated in the front-rear direction with respect to the base frame and the seat frame. is there.

  According to the above reclining chair, an operation according to the operation of the reclining chair of the above [1] is formed. For this reason, the effect similar to the effect acquired by the reclining chair of said [1] is acquired.

  [4] According to one embodiment of the reclining chair, as the seat frame moves forward relative to the base frame, the front portion of the seat frame rises relative to the rear portion. The rotating frame is connected to the seat frame.

  A user who uses a reclining chair generally reclines a backrest after determining a sitting position, which is a position to sit on the seat. According to the reclining chair, as the seat frame moves forward relative to the base frame, the user's thigh moves relatively upward relative to the buttocks. For this reason, the state where it is difficult for the user's buttocks to move forward is formed. For this reason, even if the backrest is reclined, the seating position of the user is difficult to shift. This makes it difficult for the user to determine the seating position again.

  [5] According to one form of the reclining chair, after the seat frame has moved forward to a predetermined position so that the front portion of the seat frame is raised with respect to the rear portion, the seat frame As the frame moves further forward relative to the base frame, the rotating frame is connected to the seat frame such that the front portion of the seat frame is lowered relative to the rear portion.

  According to the above reclining chair, the seat frame moves forward to a predetermined position with respect to the base frame, whereby a posture is formed such that the seating position of the user is less likely to shift. Then, as the seat frame moves further forward from a predetermined position with respect to the base frame, a posture in which the user sleeps on the back is formed. For this reason, a user can take various postures.

  [6] According to one embodiment of the reclining chair, when the back frame forms a state of rotating most forward with respect to the base frame, the front side of the seat frame with respect to the base frame The rotating frame is connected to the base frame such that the tip portion of the base plate takes a position behind the base frame with respect to the connecting portion between the base frame and the rotating frame.

  When the front end of the seat rail is positioned in front of the base frame with respect to the front end of the base frame, the movement for the user to sit on the reclining chair and the movement for the user to leave the reclining chair may be prevented. There is. According to the above reclining chair, the front end portion of the seat rail is positioned behind the base frame with respect to the connecting portion between the base frame and the rotating frame. That is, the front end portion of the seat rail is positioned behind the base frame with respect to the front end portion of the base frame. For this reason, it becomes difficult to prevent the movement for the user to sit on the reclining chair and the movement for the user to leave the reclining chair.

  [7] According to one embodiment of the reclining chair, when the back frame forms a state of being most forwardly rotated with respect to the base frame, a connecting portion between the seat frame and the rotary frame is the seat The rotating frame is connected to the seat frame so as to take a position rearward with respect to the base frame with respect to the end portion of the rail.

  According to the above reclining chair, when the back frame forms the most forwardly rotated state with respect to the base frame, the rotary frame forms a state inclined toward the back frame from the base frame to the seat frame. To do. In this case, the rotating frame can be rotated forward with respect to the base frame to form a state in which the rotating frame is inclined toward the opposite side from the back frame from the base frame to the seat frame. That is, the connecting portion between the seat frame and the rotating frame moves largely forward with respect to the base frame. For this reason, when the back frame forms the most forward-rotated state with respect to the base frame, the seat frame is more than the configuration in which the rotary frame is not inclined toward the back frame side from the base frame to the seat frame. Can move further forward with respect to the base frame. That is, the back frame can move further forward with respect to the base frame. For this reason, the space behind the chair necessary for reclining the backrest can be further reduced.

  [8] According to one embodiment of the reclining chair, when the back frame forms a state of rotating most backward with respect to the base frame, a connection portion between the seat frame and the rotary frame is The rotating frame is connected to the seat frame so as to take a position in front of the base frame with respect to the front end portion of the seat rail.

  Since the seat travel tool is supported by the seat rail so that it can travel in the front-rear direction with respect to the seat rail, the seat travel tool moves within the range of the seat rail. According to the reclining chair, the connecting portion between the seat frame and the rotating frame moves forward relative to the base frame rather than the tip portion of the seat rail. For this reason, the seat frame is further forward with respect to the base frame without changing the length of the seat rail, as compared to the configuration in which another seat traveling tool is attached to the connection portion between the seat frame and the rotary frame instead of the rotating frame. Can move to. That is, the back frame can move further forward with respect to the base frame. For this reason, the space behind the chair necessary for reclining the backrest can be further reduced.

[9] According to one embodiment of the reclining chair, the seat rail is straight.
According to the reclining chair, when the seat frame moves in the front-rear direction with respect to the base frame, the front portion of the seat frame rises or descends with respect to the rear portion. Such a relative change of the front part and the rear part of the seat frame can be formed, for example, by bending the seat rail. On the other hand, according to the above reclining chair, the front part of the seat frame can be raised or lowered with respect to the rear part by rotating the rotating frame with respect to the base frame. Can be formed. For this reason, the productivity of the seat rail is improved.

  [10] According to one embodiment of the reclining chair, the angle between the base frame and the rotating frame is set so that the rotating frame rotates within a range of 45 ° to 135 °.

  When the user sits on the seat, the rotating frame supports the force of the load. According to the reclining chair, the rotating frame rotates within a range of 45 ° to 135 ° between the rotating frame and the base frame. For this reason, the rotating frame is easier to support the component of the force received from above than the configuration of rotating beyond the range. For this reason, the load applied by the user is easily supported by the rotating frame.

  [11] According to one embodiment of the reclining chair, the back rail is fixed to the base frame and formed to extend in the front-rear direction with respect to the base frame, and can travel in the front-rear direction with respect to the back rail. A back running tool supported by the back rail and attached to the back frame.

  According to the reclining chair, the movement of the back frame in the front-rear direction with respect to the base frame and the rotation of the back frame with respect to the base frame are supported by the back travel tool traveling in the front-rear direction with respect to the back rail. Therefore, a change in the angle of the back frame with respect to the base frame can be easily formed by changing one or both of the angle of the back rail with respect to the base frame and the shape of the back rail. For this reason, the manufacturability of the back frame is improved.

  [12] According to one embodiment of the reclining chair, a back rail fixed to the back frame and formed to extend in the front-rear direction with respect to the base frame; and a back running tool attached to the base frame Furthermore, the back rail is supported by the back running tool so that the back rail can move in the front-rear direction with respect to the back running tool.

  According to the above reclining chair, an action according to the action of the above [11] reclining chair is formed. For this reason, the effect similar to the effect acquired by the reclining chair of said [11] is acquired.

  [13] According to one embodiment of the reclining chair, a first seat stopper formed at a front portion of the seat rail with respect to the base frame and capable of contacting the seat travel tool, and the seat rail A second seat stopper that can be in contact with the seat running tool, and formed in a front portion of the back rail with respect to the base frame. A first back stopper that can come into contact with the back running tool, and a second back stopper that is formed in a rear part of the back rail with respect to the base frame and can come into contact with the back running tool. At least one stopper is provided.

  According to the above reclining chair, when the seat frame moves in the front-rear direction with respect to the base frame, the seat running tool comes into contact with the seat stopper or the back running tool comes into contact with the back stopper, so that each running tool is Stop movement relative to the rail. For this reason, it becomes difficult to form the movement that each traveling tool exceeds the range of each rail. For this reason, it is difficult to form a state in which each traveling tool is detached from each rail.

  [14] According to one embodiment of the reclining chair, the base frame is formed so as to extend in the front-rear direction, which is the moving direction of the seat frame, and is disposed on the right side with an interval in the width direction of the seat frame. Installation frame and left installation frame, and a connection installation frame for connecting the right installation frame and the left installation frame to each other, the right installation frame, the left installation frame, and the connection installation Each of the frames constitutes a bottom of the base frame, and the rotating frame connects the seat frame and the installation frame, or the seat frame and the connection installation frame to each other.

  According to the reclining chair, the rotating frame is connected to the installation frame or the connection installation frame. For this reason, the load applied by the user is supported by the installation frame or the connection installation frame via the rotating frame. On the other hand, since the installation frame and the connection installation frame are installed on an installation surface such as a floor, it is easy to support the force applied from above. For this reason, the load applied by the user is more easily supported.

[15] According to one embodiment of the reclining chair, the rotating frame is connected to a front portion of the installation frame.
According to the reclining chair, the space between the base frame and the seat frame can be used more widely than the configuration in which the rotating frame is connected to a portion other than the front portion of the installation frame.

  [16] According to an embodiment of the reclining chair, the connection installation frame connects a front part of the right installation frame and a front part of the left installation frame to each other, and the rotation frame is the seat. The frame and the connection installation frame are connected to each other.

  According to the above reclining chair, the base frame and the seat frame are configured in a manner that the connecting installation frame connects the portion other than the front portion of the right installation frame and the portion other than the front portion of the left installation frame. The space between can be widely used.

  [17] According to one embodiment of the reclining chair, the first stopper, the second stopper, the third stopper, and the fourth stopper that regulate the rotation of the rotating frame by contacting the rotating frame. At least one stopper among the stoppers, wherein the first stopper is formed on a front side of a connection portion between the connection installation frame and the rotary frame, and the second stopper is formed by connecting the connection installation frame to the connection frame. The third stopper is formed on the front side of the connecting portion between the seat frame and the rotating frame, and the fourth stopper is formed on the seat frame and the rotating frame. It is formed on the rear side of the connection portion with the rotating frame.

  According to the reclining chair, when the seat frame moves in the front-rear direction with respect to the base frame, the rotation of the rotating frame is restricted by the rotating frame coming into contact with the stopper. For this reason, it becomes difficult to form a rotation in which the rotating frame exceeds a predetermined angle with respect to the base frame. For this reason, it becomes easy to maintain the state in which the load applied by the user is easily supported by the rotating frame.

  [18] According to one embodiment of the reclining chair, when the rotating frame and the stopper are in contact, between the seat running tool and the seat stopper, and between the back running tool and the back stopper. An interval is formed.

  The positions of the seat stopper that contacts the seat running tool, the back stopper that contacts the back running tool, and the stopper that contacts the rotating frame may vary due to manufacturing tolerances. For this reason, when it manufactures so that each running implement and each stopper, and each of a rotation frame and a stopper may contact simultaneously, the reclining chair which each does not contact simultaneously may be manufactured by the tolerance at the time of manufacture. That is, a reclining chair in which a gap is formed between the rotating frame and the stopper when each traveling tool and each stopper are in contact, or each traveling tool and each stopper when the rotating frame and the stopper are in contact with each other. There is a risk of manufacturing a reclining chair with a gap in between. For this reason, variation may occur in the structure of the manufactured reclining chair.

  The reclining chair is manufactured such that a space is formed between each traveling tool and each stopper when the rotating frame and the stopper are in contact with each other. For this reason, even if the position of each stopper varies due to manufacturing tolerances, the structure of the manufactured reclining chair is less likely to vary.

[19] According to one embodiment of the reclining chair, the seat rail is disposed below the seat frame, and the back rail is disposed below the back frame.
According to the configuration in which the seat rail is disposed on the side of the seat frame and the back rail is disposed on the side of the back frame, for example, when each rail is bent, each rail protrudes outside from the exterior covering the reclining chair. There is. According to the reclining chair, since the seat rail is disposed below the seat frame and the back rail is disposed below the back frame, a part of each rail is difficult to protrude to the outside. For this reason, it becomes difficult for a part of a user's body to contact a part of each rail, and it becomes difficult for a user to feel discomfort.

  [20] According to one embodiment of the reclining chair, one or both of the seat travel tool and the back travel tool is configured by a pinion gear, and corresponds to the pinion gear of the seat rail and the back rail. A rack gear is formed on the inner surface of one or both rails.

  According to the reclining chair, when the seat running tool is a pinion gear and a rack gear is formed on the inner surface of the seat rail, when the seat frame moves in the front-rear direction with respect to the base frame, the seat frame width direction Each of the corresponding pinion gears rotates in the same manner while meshing with the rack gear. For this reason, it becomes difficult to generate backlash in the width direction of the seat frame. For this reason, the movement of the seat frame in the front-rear direction is easily formed smoothly. The same effect can be obtained when the back running tool is a pinion gear and a rack gear is formed on the inner surface of the back rail.

  [21] According to one embodiment of the reclining chair, a base frame that constitutes the base of the seat, a seat frame that can move in the front-rear direction with respect to the base frame, and while moving in the front-rear direction with respect to the base frame A back frame connected to the seat frame so as to be rotatable with respect to the base frame, and moving one of the seat frame and the back frame in the front-rear direction with respect to the base frame, A drive unit that rotates relative to the base frame, a seat rail that is fixed to the base frame and that extends in the front-rear direction with respect to the base frame, and that it can travel in the front-rear direction with respect to the seat rail A seat travel tool supported by the seat rail and attached to the seat frame, wherein the drive unit is more than the back frame. They are arranged in a square space.

  According to the above reclining chair, an operation according to the operation of the reclining chair of the above [1] is formed. For this reason, the effect similar to the effect acquired by the reclining chair of said [1] is acquired.

  Further, according to the reclining chair in which the drive unit is disposed in the space between the base frame and the seat frame, when the ottoman is stored in the space between the base frame and the seat frame, the length of the seat in the front-rear direction Needs to be set longer. According to the above reclining chair, since the drive unit is disposed in the space behind the back frame, the ottoman is placed in the space between the base frame and the seat frame without setting the length of the seat in the front-rear direction. It is possible to secure a space for storing the. For this reason, since the ottoman can be stored and the length in the front-rear direction of the seat can be set short, the user can easily sit on the seat.

  [22] According to one embodiment of the reclining chair, a base frame that constitutes a base of the seat, a seat frame that can move in the front-rear direction with respect to the base frame, while moving in the front-rear direction with respect to the base frame A back frame connected to the seat frame so as to be rotatable with respect to the base frame, and moving one of the seat frame and the back frame in the front-rear direction with respect to the base frame, A drive unit that rotates with respect to the base frame; a seat rail that is fixed to the seat frame and that extends in the front-rear direction with respect to the base frame; and a seat travel tool that is attached to the base frame; The drive unit is disposed in a space behind the back frame, and the seat rail moves in the front-rear direction with respect to the seat traveling tool. It is supported by the seat driving tool to cut.

  According to the above reclining chair, an action according to the action of the reclining chair of the above [21] is formed. For this reason, the effect similar to the effect acquired by the reclining chair of said [21] is acquired.

[23] According to an embodiment of the massage machine, the recliner chair according to any one of [1] to [22] is provided.
According to the massage machine, the same effect as that obtained by the reclining chair can be obtained.

(Embodiment 1)
With reference to FIG. 1, the structure of the massage machine 1 is demonstrated.
The massage machine 1 includes a reclining chair 10 that reclines the backrest 12. The reclining chair 10 includes a seat 11, a backrest 12 provided behind the seat 11, armrests 13 provided on the right and left sides of the seat 11, and an ottoman 14 provided on the front of the seat 11.

  The backrest 12 is attached to the seat surface 11 </ b> A so as to be able to rotate around a connecting portion with the seat surface 11 </ b> A that is the upper surface of the seat 11. 11 A of seat surfaces are supported by the seat 11 so that it can move to the front-back direction. The backrest 12 is supported by the seat surface 11A so that it can move in the front-rear direction in conjunction with the movement of the seat surface 11A in the front-rear direction, and reclines in accordance with the movement in the front-rear direction. The ottoman 14 is attached to the seating surface 11A so as to be able to rotate around the connecting portion with the seating surface 11A.

  The massage machine 1 includes a massage mechanism (not shown) inside the backrest 12 and inside the ottoman 14. For example, a roller-type massage mechanism is provided in the backrest 12. The ottoman 14 is provided with an air massage mechanism, for example. As these massage mechanisms are driven, the user's body is massaged.

The internal configuration of the reclining chair 10 will be described with reference to FIG. In FIGS. 2 to 3C, the frames constituting the armrest 13 and the ottoman 14 are omitted.
The reclining chair 10 includes a base frame 20 that forms the base of the seat 11, a seat frame 30 that forms the seat 11, and a rotating frame 40 that is a connection frame that connects the base frame 20 and the seat frame 30 to each other. , And a back frame 50 constituting the backrest 12. The reclining chair 10 further includes an electric telescopic mechanism 60 that is a drive unit that reclines the backrest 12.

  The base frame 20 has a line-symmetric relationship with respect to the center line in the width direction of the base frame 20. The base frame 20 is disposed below the seat frame 30. The base frame 20 is formed so as to extend in the front-rear direction, which is the moving direction of the seat frame 30, and is installed on the installation surface 21 such as a floor and the installation frame 21, and faces the seat frame 30 side. The support frame 23 is extended.

  The installation frame 21 includes a right installation frame 21 and a left installation frame 21 that are spaced from each other in the width direction of the seat frame 30. The installation frames 21 are connected to each other by connecting frames 24A and 24B. The connecting frame 24A is disposed in front of the connecting frame 24B in the front-rear direction of the seat frame 30.

  Each installation frame 21 is provided with a front support frame 23A, an intermediate support frame 23B, and a rear support frame 23C as support frames 23, respectively. The front support frame 23 </ b> A is attached to a tip portion on the front side in the moving direction of the seat frame 30 in each installation frame 21. The intermediate support frame 23B is attached behind the front support frame 23A in each installation frame 21 and at a position corresponding to the connection frame 24A in the longitudinal direction of each installation frame 21. The rear support frame 23C is attached to the rear of the intermediate support frame 23B among the installation frames 21.

  The base frame 20 is a connecting installation frame 22 that connects the lower end of the front support frame 23A attached to the right installation frame 21 and the lower end of the front support frame 23A attached to the left installation frame 21 to each other. Is further provided. The connection installation frame 22 is disposed below the installation frames 21 and the entire bottom surface is installed on the installation surface.

  The seat rail 25 is disposed below the seat frame 30, and is fixed so as to straddle the upper ends of the front support frame 23A, the intermediate support frame 23B, and the rear support frame 23C. The seat rail 25 is formed to extend upward from the rear side to the front side, which is the moving direction of the seat frame 30. The seat rail 25 has a role of guiding the movement of the seat frame 30 in the front-rear direction. The seat rail 25 is straight.

  The back rail 26 is disposed below the back frame 50. The back rail 26 is fixed to the rear support frame 23C and is formed to extend toward the back frame 50 side. The back rail 26 serves to guide the movement of the back frame 50 in the front-rear direction. The back rail 26 is straight.

  The seat frame 30 has a line-symmetric relationship with respect to the center line in the width direction of the seat frame 30. The seat frame 30 includes a side frame 31 that is a frame on the seat rail 25 side in the width direction of the seat frame 30. The side frame 31 includes a right side frame 31 and a left side frame 31 that are spaced apart from each other in the width direction of the seat frame 30. The side frames 31 are connected to each other by a front frame 32. The front frame 32 connects the tip portions on the front side in the moving direction of the seat frame 30 among the side frames 31 to each other. Further, a connecting portion 35 connected to the back frame 50 is formed on the rear side in the moving direction of the seat frame 30 in each side frame 31.

  On the bottom surface of each side frame 31, a travel tool support 33 for supporting a seat travel tool 34 (see FIG. 3A) is formed. The traveling tool support 33 has a seat traveling tool 34 attached so that the seat frame 30 can rotate relative to the base frame 20 and the seat rail 25.

  An example of the shape of the seat travel tool 34 is a rectangular parallelepiped. The seat travel tool 34 is supported by a travel surface 25 </ b> A that is the inner surface of the seat rail 25 so that the seat travel tool 34 can travel in the front-rear direction with respect to the seat rail 25. For this reason, when the seat frame 30 moves in the front-rear direction, the seat travel tool 34 travels along the travel surface 25 </ b> A of the seat rail 25. In addition, a seat stopper for preventing the seat travel tool 34 from traveling with respect to the seat rail 25 is provided at an end of the seat rail 25 on the rear support frame 23C side, which is a rear portion of the base frame 20. (Not shown) is formed. When the seat travel tool 34 and the seat stopper come into contact, the seat travel tool 34 stops with respect to the seat rail 25, and the movement of the seat frame 30 in the front-rear direction stops.

  A hook 36 is attached to each side frame 31. The hook 36 is hung by an elastic body 37 provided below the seat surface 11A (see FIG. 1). A restriction frame 38 that restricts deformation of the elastic body 37 is attached below the elastic body 37. The restriction frame 38 connects a traveling tool support 33 formed on the right side frame 31 and a traveling tool support 33 formed on the left side frame 31 to each other. A connecting frame 39 connects the front frame 32 and the restriction frame 38 to each other.

  The back frame 50 has a line-symmetric relationship with respect to the center line in the width direction of the back frame 50. The back frame 50 includes a side frame 51 that is a frame on the back rail 26 side in the width direction of the back frame 50. The side frame 51 includes a right side frame 51 and a left side frame 51 that are spaced apart from each other in the width direction of the back frame 50. The side frames 51 are connected to each other by the upper frame 52. The upper frame 52 connects the upper ends of the side frames 51 to each other. Further, a connecting portion 55 that is connected to the connecting portion 35 of the seat frame 30 is formed in a lower portion of each side frame 51. In addition, the connection part which has connected the connection part 35 and the connection part 55 mutually is a connection part with the seat frame 30 for the back frame 50 to rotate.

  An angle formed by the line segment connecting the connecting portion and the seat travel tool 34 and the longitudinal direction of the seat rail 25 forms an obtuse angle. The angle formed is configured not to change from an obtuse angle to an acute angle when the seat frame 30 moves in the front-rear direction. For this reason, the seat frame 30 and the back frame 50 can move smoothly in conjunction with each other.

  On the back surface of each side frame 51, a running tool support 53 for supporting the back running tool 54 (see FIG. 3A) is formed. The traveling tool support 53 is provided with a back traveling tool 54 so that the back frame 50 can rotate relative to the base frame 20 and the back rail 26.

  An example of the shape of the back running tool 54 is a rectangular parallelepiped. The back running tool 54 is supported by a running surface 26A (see FIG. 3A) that is an inner surface of the back rail 26 so that the back running tool 54 can run in the front-rear direction with respect to the back rail 26. For this reason, when the back frame 50 moves in the front-rear direction, the back traveling tool 54 travels along the traveling surface 26 </ b> A of the back rail 26. Further, a back stopper for preventing the back traveling tool 54 from traveling with respect to the back rail 26 is provided at an end of the back rail 26 on the rear support frame 23C side which is a front portion of the base frame 20. (Not shown) is formed. When the back running tool 54 and the back stopper come into contact, the back running tool 54 stops with respect to the back rail 26, and the movement of the back frame 50 in the front-rear direction stops.

  The rotating frame 40 is disposed in front of the seat traveling tool 34 in the front-rear direction of the seat frame 30. The rotating frame 40 is inclined toward the back frame 50 from the base frame 20 to the seat frame 30 when the back frame 50 forms a state where it is most forwardly rotated with respect to the base frame 20. The rotating frame 40 includes a right rotating frame 40 and a left rotating frame 40 that are spaced from each other in the width direction of the seat frame 30.

  The right rotating frame 40 connects the connecting installation frame 22 and the tip of the right side frame 31 to each other so as to be able to rotate in the front-rear direction with respect to the base frame 20 and the seat frame 30. The left rotating frame 40 connects the connecting installation frame 22 and the tip of the left side frame 31 to each other so as to be able to rotate in the front-rear direction with respect to the base frame 20 and the seat frame 30. For this reason, when the seat frame 30 moves forward, each rotary frame 40 rotates forward with respect to the base frame 20. Moreover, each rotation frame 40 is set so that the angle | corner with the connection installation frame 22 may rotate within the range of 45 degrees-135 degrees. The angle formed between each rotating frame 40 and the connecting installation frame 22 is substantially the same as the angle formed between each rotating frame 40 and the installation surface.

  A first rotation fulcrum 41 for rotating each rotary frame 40 relative to the connection installation frame 22 is formed at a connection portion between each rotation frame 40 and the connection installation frame 22. On the backrest 50 side, which is the rear side of the first rotation fulcrum portion 41, a stopper (not shown) for restricting the rotation of the rotary frame 40 toward the rear with respect to the base frame 20 is formed. The angle formed by the stopper and the connecting installation frame 22 is such that the rotation frame 40 and the stopper are located within the range in which the rotation frame 40 rotates, when the rotation frame 40 rotates to the maximum with respect to the base frame 20. It is set so that no space is formed between them. When the rotating frame 40 comes into contact with the stopper, the rotation of the rotating frame 40 toward the rear with respect to the base frame 20 is restricted, and the movement of the seat frame 30 in the front-rear direction is stopped. Further, when the rotary frame 40 is in contact with the stopper, there is a space between the seat travel tool 34 and the seat stopper and between the back travel tool 54 and the back stopper.

  A second rotation fulcrum portion 42 for rotating each rotary frame 40 relative to the seat frame 30 is formed at a connection portion between each rotary frame 40 and each side frame 31. A stopper (not shown) for restricting the rotation of the rotating frame 40 toward the front with respect to the base frame 20 is formed on the backrest 50 side, which is the rear side of the second rotation fulcrum portion 42. The angle formed by the stopper and the side frame 31 is between the rotating frame 40 and the stopper when the rotating frame 40 rotates forward with respect to the base frame 20 within the range in which the rotating frame 40 rotates. It is set so that no space is formed. When the rotating frame 40 comes into contact with the stopper, the rotation of the rotating frame 40 toward the front with respect to the base frame is restricted, and the movement of the seat frame 30 in the front-rear direction is stopped. Further, when the rotary frame 40 is in contact with the stopper, there is a space between the seat travel tool 34 and the seat stopper and between the back travel tool 54 and the back stopper.

  The electric telescopic mechanism 60 is disposed in a space between the base frame 20 and the seat frame 30. The electric telescopic mechanism 60 connects the connecting frame 24 </ b> A and the front frame 32 to each other so as to be able to rotate relative to the base frame 20 and the seat frame 30. The electric telescopic mechanism 60 extends so that the angle formed between the extending direction and the longitudinal direction of the seat rail 25 is maintained at 45 ° or less. The electric telescopic mechanism 60 forms the most contracted state when the back frame 50 is rotated forward most with respect to the base frame 20.

  The electric telescopic mechanism 60 includes an electric motor 61. An example of the electric telescopic mechanism 60 is a ball screw. In this case, the rotation of the output shaft of the electric motor 61 is transmitted to the ball screw via a gear such as a worm gear, and the position of the nut is displaced as the screw shaft rotates, so that the electric telescopic mechanism 60 expands and contracts.

  The electric telescopic mechanism 60 moves the seat frame 30 forward by extending toward the front frame 32. That is, as the electric telescopic mechanism 60 extends, the seat frame 30 and the back frame 50 move forward relative to the base frame 20, and the back frame 50 uses the connecting portion with the seat frame 30 as an axis. Rotate.

  The operation of the reclining chair 10 will be described with reference to FIGS. 3A to 3C. 3A to 3C omit some of the components arranged on the left side in the width direction of the reclining chair 10.

  As shown in FIG. 3A, the reclining chair 10 forms a first state in which the electric telescopic mechanism 60 is most contracted and the back frame 50 is rotated most forward with respect to the base frame 20. According to the first state, the front end portion of the seat rail 25 that is on the front side with respect to the base frame 20 and the connection portion between the rotating frame 40 and the connection installation frame 22 are approximately in the front-rear direction of the base frame. Take the same position. In addition, the connecting portion between the rotating frame 40 and the side frame 31 is positioned behind the base frame 20 with respect to the tip portion of the seat rail 25.

  When the seat frame 30 moves forward relative to the base frame 20 by the extension of the electric telescopic mechanism 60 from the first state, the seat travel tool 34 travels forward relative to the seat rail 25, and the rotating frame. 40 rotates forward with respect to the base frame 20. The back frame 50 rotates around the connection portion with the seat frame 30 while moving the connection portion with the seat frame 30 in conjunction with the movement of the seat frame 30.

  As shown in FIG. 3B, the reclining chair 10 forms a second state in which the electric telescopic mechanism 60 extends from the first state and the back frame 50 rotates backward from the first state with respect to the base frame 20. doing. When transitioning from the first state to the second state, as the seat frame 30 moves forward relative to the base frame 20, the front portion of the seat frame 30 rises relative to the rear portion.

  As shown in FIG. 3C, the reclining chair 10 forms a third state in which the electric telescopic mechanism 60 extends most and the back frame 50 rotates most backward with respect to the base frame 20. When transitioning from the second state to the third state, as the seat frame 30 moves further forward with respect to the base frame 20, the front portion of the seat frame 30 descends relative to the rear portion. According to the third state, the connecting portion between the rotating frame 40 and the side frame 31 is positioned in front of the base frame 20 with respect to the tip portion of the seat rail 25. Further, a space is formed between the front end portion of the seat rail 25 and the seat travel tool 34.

According to the reclining chair 10, the following effects can be obtained.
(1) According to the reclining chair 10, when the seat frame 30 and the back frame 50 move together and move forward with respect to the base frame 20, the seat travel tool 34 travels forward with respect to the seat rail 25 and rotates. The frame 40 rotates forward with respect to the base frame 20. Then, the back frame 50 rotates around the connection portion with the seat frame 30 while moving the connection portion with the seat frame 30 forward. For this reason, as the back frame 50 rotates, the back frame 50 is less likely to move backward with respect to the base frame 20. For this reason, the space behind the chair required for reclining the backrest 12 can be reduced.

  (2) A user who uses the reclining chair 10 generally reclines the backrest 12 after determining a seating position, which is a position to sit on the seat 11. According to the reclining chair 10, as the seat frame 30 moves forward with respect to the base frame 20, the front part of the seat frame 30 rises with respect to the rear part. For this reason, a user's thigh moves relatively upwards rather than a buttocks. For this reason, the state where it is difficult for the user's buttocks to move forward is formed. For this reason, even if the backrest 12 is reclined, the seating position of the user is difficult to shift. This makes it difficult for the user to determine the seating position again.

  (3) According to the reclining chair 10, as the seat frame 30 moves forward to a predetermined position with respect to the base frame 20, the front portion of the seat frame 30 rises with respect to the rear portion. . Then, as the seat frame 30 moves further forward from a predetermined position with respect to the base frame 20, the front part of the seat frame 30 descends with respect to the rear part. For this reason, a posture in which the user sleeps on the back is formed. For this reason, a user can take various postures.

  (4) When the back frame 50 is in a state of being most forwardly rotated with respect to the base frame 20, the front end portion of the seat rail 25 is positioned ahead of the base frame 20 relative to the front end portion of the base frame 20. The movement for the user to sit on the reclining chair 10 and the movement for the user to leave the reclining chair 10 may be hindered. According to the reclining chair 10, the front end portion of the seat rail 25 and the connection portion between the connecting and setting frame 22 and the rotating frame 40 take approximately the same position in the front-rear direction of the base frame 20. That is, the front end portion of the seat rail 25 and the front end portion of the base frame 20 take approximately the same position in the front-rear direction of the base frame 20. For this reason, it becomes difficult to prevent the movement for the user to sit on the reclining chair 10 and the movement for the user to leave the reclining chair 10.

  (5) According to the reclining chair 10, when the back frame 50 forms the most forwardly rotated state with respect to the base frame 20, the rotating frame 40 extends from the base frame 20 to the seat frame 30 toward the back frame 50 side. It is inclined towards. In this case, the rotating frame 40 can form a state in which the rotating frame 40 is inclined toward the opposite side from the back frame 50 from the base frame 20 to the seat frame 30 by rotating forward with respect to the base frame 20. That is, the connecting portion between the rotating frame 40 and the side frame 31 moves largely forward with respect to the base frame 20. For this reason, when the back frame 50 forms a state of rotating most forward with respect to the base frame 20, the rotation frame 40 is not inclined toward the back frame 50 side from the base frame 20 to the seat frame 30. The seat frame 30 moves further forward with respect to the base frame 20. That is, the back frame 50 can move further forward with respect to the base frame 20. For this reason, the space behind the chair necessary for reclining the backrest 12 can be further reduced.

  (6) The seat travel tool 34 is supported by the travel surface 25 </ b> A so as to travel in the front-rear direction with respect to the seat rail 25, and thus moves within the range of the seat rail 25. According to the reclining chair 10, when the back frame 50 is rotated most backward with respect to the base frame 20, the connection portion between the rotary frame 40 and the side frame 31 is located on the base frame 20 rather than the tip portion of the seat rail 25. Take forward position. That is, the connecting portion between the rotating frame 40 and the side frame 31 moves forward relative to the base frame 20 rather than the tip portion of the seat rail 25. Therefore, instead of the rotating frame 40, the seat frame 30 can be the base frame without changing the length of the seat rail 25, compared to a configuration in which another seat traveling tool is attached to the connection portion between the side frame 31 and the rotating frame 40. 20 can move further forward. That is, the back frame 50 can move further forward with respect to the base frame 20. For this reason, the space behind the chair necessary for reclining the backrest 12 can be further reduced.

  Further, according to the reclining chair 10, since the length of the seat rail 25 is not changed, the seat rail 25 hardly protrudes from the exterior covering the reclining chair 10. For this reason, the length in the front-rear direction of the entire reclining chair 10 when the back frame 50 is rotated most backward with respect to the base frame 20 can be set to a preferred length. For this reason, it can contribute to the improvement of the designability of the reclining chair 10.

  (7) According to the reclining chair 10, when the seat frame 30 moves in the front-rear direction with respect to the base frame 20, the front portion of the seat frame 30 is raised or lowered relative to the rear portion. Such a relative change of the front part and the rear part of the seat frame 30 can be formed by bending the seat rail 25 as an example. On the other hand, according to the reclining chair 10, the front part of the seat frame 30 can be raised or lowered relative to the rear part by rotating the rotary frame 40 relative to the base frame 20. The rail 25 can be formed straight. For this reason, the productivity of the seat rail 25 is improved.

  (8) When the user sits on the seat 11, the rotating frame 40 supports the force of the load. According to the reclining chair 10, the rotating frame 40 rotates within a range of 45 ° to 135 ° between the rotating frame 40 and the connection installation frame 22. For this reason, the rotating frame 40 is easier to support the component of the force received from above than the configuration of rotating beyond the range. For this reason, the load applied by the user is easily supported by the rotating frame 40.

  (9) According to the reclining chair 10, the back running tool 54 moves in the front-rear direction with respect to the back rail 26 when the back frame 50 moves in the front-rear direction with respect to the base frame 20 and rotates with respect to the base frame 20. Supported by running. Therefore, a change in the angle of the back frame 50 with respect to the base frame 20 can be easily formed by changing one or both of the angle of the back rail 26 with respect to the base frame 20 and the shape of the back rail 26. For this reason, the manufacturability of the back frame 50 is improved.

  (10) According to the reclining chair 10, a seat stopper for preventing the seat traveling tool 34 from traveling with respect to the seat rail 25 is formed in a portion of the seat rail 25 behind the base frame 20. ing. Further, a back stopper for preventing the back traveling tool 54 from traveling with respect to the back rail 26 is formed at a portion of the back rail 26 in front of the base frame 20. For this reason, when the seat frame 30 moves in the front-rear direction with respect to the base frame 20, the seat travel tool 34 comes into contact with the seat stopper or the back travel tool 54 comes into contact with the back stopper. 54 stops moving relative to the rails 25 and 26. For this reason, it becomes difficult to form movements in which the traveling tools 34 and 54 exceed the range of the rails 25 and 26. For this reason, it is difficult to form a state in which the traveling tools 34 and 54 are detached from the rails 25 and 26.

  (11) According to the reclining chair 10, the rotating frame 40 is connected to the connection installation frame 22. For this reason, the load applied by the user is supported by the connection installation frame 22 via the rotating frame 40. On the other hand, since all of the bottom surfaces of the connection installation frame 22 are installed on the installation surface, it is easy to support the force applied from above. For this reason, the load applied by the user is more easily supported.

  (12) According to the reclining chair 10, a stopper is provided on the rear side of the first rotation fulcrum portion 41 to restrict the rotation of the rotating frame 40 toward the rear with respect to the base frame 20. Further, a stopper for restricting forward rotation of the rotary frame 40 relative to the base frame 20 is formed on the rear side of the second rotation fulcrum portion 42. For this reason, when the seat frame 30 moves in the front-rear direction with respect to the base frame 20, the rotation of the rotation frame 40 is restricted by the rotation frame 40 coming into contact with the stopper. For this reason, it becomes difficult to form rotation that the rotation frame 40 exceeds a predetermined angle with respect to the base frame 20. For this reason, the state in which the load applied by the user is easily supported by the rotary frame 40 is easily maintained.

  Further, since the stopper restricts the rotation of the rotating frame 40, the stopper can be used for positioning the rotating frame 40 at the time of manufacture. For this reason, the manufacturability of the reclining chair 10 is improved.

  (13) The positions of the seat stopper that contacts the seat travel tool 34, the back stopper that contacts the back travel tool 54, and the stopper that contacts the rotating frame 40 may vary depending on manufacturing tolerances. For this reason, when it manufactures so that each traveling tool 34,54 and each stopper and each of the rotation frame 40 and a stopper may contact simultaneously, the reclining chair 10 which does not contact each other simultaneously by the tolerance at the time of manufacture is manufactured. There is. That is, the reclining chair 10 in which a space is formed between the rotating frame 40 and the stopper when the traveling tools 34 and 54 are in contact with the stopper, or the traveling is performed when the rotating frame 40 and the stopper are in contact with each other. There is a possibility that the reclining chair 10 in which a space is formed between the tools 34 and 54 and each stopper is manufactured. For this reason, variation may occur in the structure of the manufactured reclining chair 10.

  According to the reclining chair 10, when the rotary frame 40 is in contact with the stopper, a space is formed between the seat traveling tool 34 and the seat stopper and between the back traveling tool 54 and the back stopper. Manufactured. For this reason, even if the position of each stopper varies due to manufacturing tolerances, the structure of the manufactured reclining chair 10 is less likely to vary.

  Moreover, according to this reclining chair 10, after the rotary frame 40 and a stopper contact and the stopper is damaged etc., each traveling tool 34 and 54 and each stopper contact. For this reason, it is more difficult to form a state in which the traveling tools 34 and 54 are detached from the rails 25 and 26.

  (14) According to the configuration in which the seat rail 25 is disposed on the side of the seat frame 30 and the back rail 26 is disposed on the side of the back frame 50, for example, when the rails 25 and 26 are bent, the rail 25 , 26 may protrude from the exterior covering the reclining chair 10 to the outside. According to the reclining chair 10, the seat rail 25 is disposed below the seat frame 30, and the back rail 26 is disposed below the back frame 50. For this reason, a part of each rail 25 and 26 becomes difficult to protrude outside. For this reason, it becomes difficult for a part of a user's body to contact a part of each rail 25 and 26, and it becomes difficult for a user to feel discomfort. In addition, the design of the reclining chair 10 can be improved.

  (15) According to the reclining chair 10, the electric telescopic mechanism 60 is disposed in the space between the base frame 20 and the seat frame 30 and is connected to the connecting frame 24 </ b> A and the front frame 32 so as to extend toward the front frame 32. Are connected to each other. In this case, the smaller the angle between the extending direction of the electric telescopic mechanism 60 and the longitudinal direction of the seat rail 25, the easier it is to transmit the component of the force that the electric telescopic mechanism 60 applies to the seat frame 30. For this reason, it can contribute to the improvement of the power transmission efficiency of the electric telescopic mechanism 60.

  (16) When the seat travel tool 34 travels along the travel surface 25A of the seat rail 25, friction occurs between the seat travel tool 34 and the travel surface 25A. This friction is more likely to occur as the user's weight is heavier. In addition, the greater the friction, the less easily the seat frame 30 moves in the front-rear direction.

  According to the reclining chair 10, a load applied by the user is supported by the seat traveling tool 34 and the rotating frame 40. For this reason. Friction is less likely to occur than in a configuration in which the user's load is supported only by the seat travel tool 34. For this reason, the movement of the seat frame 30 in the front-rear direction is easily formed smoothly.

  (17) According to the reclining chair 10, the shape of the seat traveling tool 34 and the back traveling tool 54 is a rectangular parallelepiped. For this reason, the contact area of each traveling tool 34,54 and each traveling surface 25A, 26A is larger than the case where the shape of each traveling tool 34,54 is a rotary body. For this reason, the load applied by the user is easily supported.

(Embodiment 2)
The reclining chair 10 of the second embodiment is different from the reclining chair 10 of the first embodiment in the points described below, and has substantially the same configuration as the reclining chair 10 of the first embodiment in other points. . In addition, the description of the reclining chair 10 of Embodiment 2 attaches | subjects the same code | symbol to the structure which is common in the reclining chair 10 of Embodiment 1, and has abbreviate | omitted a part or all of description of the structure.

  As shown in FIG. 4A, the seat rail 125 is disposed below the seat frame 30, and is fixed so as to straddle the upper ends of the front support frame 23A, the intermediate support frame 23B, and the rear support frame 23C. ing. The seat rail 125 includes a first seat rail 125A, a second seat rail 125B, and a third seat rail 125C that are continuously formed from the rear side to the front side in the moving direction of the seat frame 30.

  The first seat rail 125A is formed to extend downward from the rear side to the front side, which is the moving direction of the seat frame 30. The second seat rail 125B is formed to extend upward from the rear side to the front side, which is the moving direction of the seat frame 30. The third seat rail 125C is formed to extend upward from the rear side to the front side, which is the moving direction of the seat frame 30, so that the inclination with respect to the base frame 20 is smaller than that of the second seat rail 125B. . The connecting portion between the first seat rail 125A and the second seat rail 125B and the connecting portion between the second seat rail 125B and the third seat rail 125C are gently curved. An example of the shape of the seat traveling tool 34 that travels with respect to the seat rail 125 is a rotating body that can rotate relative to the seat rail 125.

  The operation of the reclining chair 10 will be described with reference to FIGS. 4A to 4C. 4A to 4C omit some of the components arranged on the left side in the width direction of the reclining chair 10.

  As shown in FIG. 4A, the reclining chair 10 forms a first state in which the electric telescopic mechanism 60 is most contracted and the back frame 50 is most forwardly rotated with respect to the base frame 20.

  As shown in FIG. 4B, the reclining chair 10 forms a second state in which the electric telescopic mechanism 60 extends from the first state and the back frame 50 rotates backward from the first state with respect to the base frame 20. doing. When transitioning from the first state to the second state, as the seat frame 30 moves forward relative to the base frame 20, the front portion of the seat frame 30 rises relative to the rear portion. According to this second state, the first seat rail 125 </ b> A and the second seat in which the rotating frame 40 is close to the state where it is most raised with respect to the connection installation frame 22 and the seat traveling tool 34 is the lowermost on the seat rail 125. A state close to the state in which the rail 125B is connected to the connecting portion is formed. For this reason, the inclination with respect to the base frame 20 of the seat frame 30 becomes still larger. For this reason, even if the backrest is reclined, the seating position of the user is more difficult to shift forward.

  As shown in FIG. 4C, the reclining chair 10 forms a third state in which the electric telescopic mechanism 60 extends most and the back frame 50 rotates most backward with respect to the base frame 20. When transitioning from the second state to the third state, as the seat frame 30 moves further forward with respect to the base frame 20, the front portion of the seat frame 30 descends relative to the rear portion.

  According to the reclining chair 10 of the second embodiment, effects according to the effects (1) to (6) and (8) to (16) obtained by the reclining chair 10 of the first embodiment are obtained.

(Modification)
The concrete form which the reclining chair according to one form of the present invention can take is not limited to the form illustrated in the above embodiments. The reclining chair according to one embodiment of the present invention can take various forms different from the above-described embodiments as long as the object of the present invention is achieved. The modification of each said embodiment shown below is an example of the various forms which the reclining chair according to one form of this invention can take.

  -As shown in FIG. 5, according to the reclining chair 10 of the modification of Embodiment 1, the rotation coupling frame (illustration omitted) which has connected the right rotation frame 40 and the left rotation frame 40 mutually is provided. . Further, the electric telescopic mechanism 60 connects the connection frame 24A (see FIG. 2) and the rotation connection frame to each other so as to be able to rotate relative to the base frame 20 and the rotation connection frame.

  The electric expansion / contraction mechanism 60 extends toward the rotation connecting frame and rotates each rotation frame 40 toward the front. That is, when the electric telescopic mechanism 60 is extended, the respective rotating frames 40 are rotated in the same manner, and the seat frame 30 and the back frame 50 are moved forward with respect to the base frame 20 while the back frame 50 is moved. It rotates around the connecting portion with the seat frame 30 as an axis. For this reason, according to the reclining chair 10 of this modification, the space behind the chair necessary for reclining the backrest 12 can be reduced.

  Further, according to the reclining chair 10 of this modified example, each rotating frame 40 rotates in the same manner as the electric expansion / contraction mechanism 60 extends, so that it is difficult for rattling to occur in the width direction of the seat frame 30. For this reason, the movement of the seat frame 30 in the front-rear direction is easily formed smoothly.

  -According to the reclining chair 10 of the modification of Embodiment 1, as shown in FIG. 6, it replaces with the structure by which the electric expansion-contraction mechanism 60 is arrange | positioned in the space between the base frame 20 and the seat frame 30, and is a back. It is arranged in a space behind the frame 50. The electric telescopic mechanism 60 connects the connecting frame 24 </ b> B and a support frame 56 formed on the back surface of the back frame 50 so as to be rotatable relative to the base frame 20 and the back frame 50. The electric telescopic mechanism 60 extends so that the angle formed between the extending direction and the longitudinal direction of the back rail 26 is maintained at 45 ° or less. The electric telescopic mechanism 60 forms a state where it extends most toward the base frame 20 when the back frame 50 is rotated forward most with respect to the base frame 20.

  The electric telescopic mechanism 60 moves the back frame 50 forward by contracting. That is, as the electric telescopic mechanism 60 contracts, the seat frame 30 and the back frame 50 move forward relative to the base frame 20, and the back frame 50 uses the connection portion with the seat frame 30 as an axis. Rotate. For this reason, according to the reclining chair 10 of this modification, the space behind the chair necessary for reclining the backrest 12 can be reduced.

  Further, according to the reclining chair 10 of this modification, the electric telescopic mechanism 60 is disposed in the space behind the back frame 50. Therefore, the length of the seat 11 in the front-rear direction can be set shorter than the configuration in which the electric telescopic mechanism 60 is disposed in the space between the base frame 20 and the seat frame 30, and the base frame 20 and the seat frame 30 can be set. A space for storing the ottoman 14 can be secured in the space between the two. For this reason, since the ottoman 14 can be accommodated and the length of the seat 11 in the front-rear direction can be shortened, the user can easily sit on the seat 11.

  -According to the reclining chair 10 of the modification of Embodiment 1, as shown in FIG. 7, it replaces with the rotation frame 40 which has mutually connected the base frame 20 and the seat frame 30, and is different from the seat frame 30. A rotating frame 40A that connects the internal mechanisms to each other is provided. An example of another internal mechanism is an armrest frame (not shown) constituting an armrest (see FIG. 1).

  The rotating frame 40 </ b> A is disposed behind the seat traveling tool 34 in the front-rear direction of the seat frame 30. Further, when the back frame 50 forms a state where the back frame 50 rotates most forward with respect to the base frame 20, the rotation frame 40 </ b> A forms a state inclined toward the back frame 50 side from the armrest frame to the seat frame 30. The rotating frame 40A includes a right rotating frame 40A and a left rotating frame 40A that are spaced from each other in the width direction of the seat frame 30.

  The right rotating frame 40A and the left rotating frame 40A connect the rear portion of the side frame 31 and the armrest frame to each other so as to be able to rotate in the front-rear direction with respect to the seat frame 30 and the armrest frame. For this reason, when the seat frame 30 moves forward, each rotating frame 40A rotates toward the front. A rotation fulcrum portion 43 for rotating each rotary frame 40A relative to the seat frame 30 is formed at a connection portion between each rotary frame 40A and the side frame 31.

  According to the reclining chair 10 of this modification example, the electric telescopic mechanism 60 extends toward the front frame 32, whereby the seat frame 30 and the back frame 50 move forward relative to the base frame 20, The back frame 50 rotates about the connecting portion with the seat frame 30 as an axis. For this reason, the space behind the chair required for reclining the backrest 12 can be reduced.

  -According to the reclining chair 10 of the modification of each embodiment, the seat traveling tool 34 is configured by a pinion gear, and a rack gear is formed on the traveling surface 25A of the seat rail 25. For this reason, when the seat frame 30 moves in the front-rear direction with respect to the base frame 20, each of the corresponding pinion gears in the width direction of the seat frame 30 rotates in the same manner while meshing with the rack gear. For this reason, backlash is less likely to occur in the width direction of the seat frame 30. For this reason, the movement of the seat frame 30 in the front-rear direction is easily formed smoothly.

  Moreover, according to the reclining chair 10 of this modification, it may replace with the electric expansion-contraction mechanism 60 and the electric motor 61, and may provide another electric motor. For example, the other electric motor is connected to a shaft that connects one pinion gear and the other pinion gear to each other. In this case, the rotation of the output shaft of another electric motor is transmitted to the shaft via gears such as a plurality of gears, and the respective pinion gears are rotated by the rotation of the shaft. Thereby, the seat frame 30 and the back frame 50 move in the front-rear direction relative to the base frame 20 in conjunction with each other.

  -According to the reclining chair 10 of the modified example of each embodiment, the back travel tool 54 is configured by a pinion gear, and a rack gear is formed on the travel surface 26A of the back rail 26. For this reason, when the back frame 50 moves in the front-rear direction with respect to the base frame 20, the corresponding pinion gears in the width direction of the back frame 50 rotate in the same manner while meshing with the rack gear. For this reason, it becomes difficult to generate backlash in the width direction of the back frame 50. For this reason, the movement of the back frame 50 in the front-rear direction is easily formed smoothly.

  Moreover, according to the reclining chair 10 of this modification, it may replace with the electric expansion-contraction mechanism 60 and the electric motor 61, and may provide another electric motor. For example, the other electric motor is connected to a shaft that connects one pinion gear and the other pinion gear to each other. In this case, the rotation of the output shaft of another electric motor is transmitted to the shaft via gears such as a plurality of gears, and the respective pinion gears are rotated by the rotation of the shaft. Thereby, the seat frame 30 and the back frame 50 move in the front-rear direction relative to the base frame 20 in conjunction with each other.

  -According to the reclining chair 10 of the modified example of each embodiment, the electric telescopic mechanism 60 has a space between the base frame 20 and the back frame 50 in addition to the space between the base frame 20 and the seat frame 30. Placed in.

-Whether or not the seat rail 25 is disposed below the seat frame 30 is an arbitrary choice.
Whether or not the back rail 26 is disposed below the back frame 50 is an optional item.

  -According to the reclining chair 10 of the modification of each embodiment, when the rotary frame 40 and the stopper on the backrest 50 side of the first rotation fulcrum 41 are in contact, The seat stopper comes into contact. Further, when the rotary frame 40 and the stopper on the backrest 50 side of the second rotation fulcrum part 42 are in contact, the back travel tool 54 and the back stopper come into contact with the contact.

  -According to the reclining chair 10 of the modification of each embodiment, when the seat traveling tool 34 and the seat stopper are in contact with each other, an interval is formed between the rotating frame 40 and the stopper. Further, when the back running tool 54 and the back stopper are in contact with each other, an interval is formed between the rotating frame 40 and the stopper.

Whether or not the stopper for restricting the rotation of the rotating frame 40 is formed on the opposite side of the backrest 50 that is the front side of the first rotation fulcrum 41 is an optional item.
Whether or not the stopper for restricting the rotation of the rotating frame 40 is formed on the backrest 50 side, which is the rear side of the first rotation fulcrum 41, is an optional item.

Whether or not the stopper for restricting the rotation of the rotating frame 40 is formed on the opposite side of the backrest 50 on the front side of the second rotation fulcrum portion 42 is an optional item.
Whether or not the stopper for restricting the rotation of the rotary frame 40 is formed on the backrest 50 side, which is the rear side of the second rotation fulcrum portion 42, is an optional item.

  -According to the reclining chair 10 of the modification of each embodiment, the connection installation frame 22 connects the front part of the right installation frame 21 and the front part of the left installation frame 21 to each other. In this modified example, whether or not the connection installation frame 22 is connected to a portion in front of the installation frame 21 is an arbitrary selection item.

  Whether or not to include the connection installation frame 22 in the base frame 20 is an optional item. According to the reclining chair 10 of the modified example, the rotating frame 40 connects the installation frame 21 and the side frame 31 to each other.

  -According to the reclining chair 10 of the modification of each embodiment, the right rotating frame 40 connects the front part of the right installation frame 21 and the tip part of the right side frame 31 to each other. Further, the left rotating frame 40 connects the front part of the left installation frame 21 and the tip part of the left side frame 31 to each other.

Whether or not the seat stopper that comes into contact with the seat travel tool 34 is formed in the front portion of the seat rail 25 with respect to the base frame 20 is an optional item.
Whether or not the seat stopper that comes into contact with the seat travel tool 34 is formed in the rear portion of the seat rail 25 with respect to the base frame 20 is an arbitrary selection matter.

Whether or not the back stopper that comes into contact with the back running tool 54 is formed in the front portion of the back rail 26 with respect to the base frame 20 is an optional item.
Whether or not the back stopper that comes into contact with the back running tool 54 is formed in the rear portion of the back rail 26 with respect to the base frame 20 is an optional item.

  -According to the reclining chair 10 of the modification of each embodiment, it replaces with the back rail 26 and the back running tool 54, and is provided with a rotation frame. The rotary frame connects the base frame 20 and the back frame 50 to each other so as to be able to rotate in the front-rear direction with respect to the base frame 20 and the back frame 50. For this reason, when the back frame 50 moves forward, the rotating frame rotates forward with respect to the base frame 20.

The operation range in which the rotating frame 40 rotates is an arbitrary selection item as to whether or not the angle between the rotating frame 40 and the connection installation frame 22 is within a range of 45 ° to 135 °.
When the back frame 50 is rotated most backward with respect to the base frame 20, the connecting portion between the rotary frame 40 and the side frame 31 is positioned forward of the base frame 20 with respect to the tip portion of the seat rail 25. Whether or not to take is an optional choice.

  When the back frame 50 is rotated most forward with respect to the base frame 20, the connecting portion between the rotary frame 40 and the side frame 31 is located behind the base frame 20 with respect to the front end portion of the seat rail 25. Whether or not to take is an optional choice.

  When the back frame 50 is rotated most forward with respect to the base frame 20, the connecting portion between the rotating frame 40 and the connection installation frame 22 and the tip portion of the seat rail 25 are in the front-rear direction of the base frame 20. Whether or not to take approximately the same position is an arbitrary choice. According to the reclining chair 10 of the modified example, when the back frame 50 is rotated most forward with respect to the base frame 20, the front end portion of the seat rail 25 is more than the connection portion between the rotating frame 40 and the connection installation frame 22. A rear position is taken with respect to the base frame 20.

  As the seat frame 30 moves forward with respect to the base frame 20, whether or not the front part of the seat frame 30 rises with respect to the rear part is an arbitrary choice. According to the reclining chair 10 of the modified example, when the seat frame 30 moves forward relative to the base frame 20, the seat frame 30 moves parallel to the base frame 20.

  As the seat frame 30 moves further with respect to the base frame 20 after the seat frame 30 moves forward to a predetermined position so that the front portion of the seat frame 30 rises with respect to the rear portion, Whether or not the front part of the seat frame 30 is lowered with respect to the rear part is an optional matter.

Whether or not the seat travel tool 34 is attached so that the seat frame 30 can rotate relative to the base frame 20 and the seat travel tool 34 is an optional matter.
Whether or not the back running tool 54 is attached so that the back frame 50 can rotate relative to the base frame 20 and the back running tool 54 is an arbitrary selection.

  -According to the reclining chair 10 of the modification of each embodiment, the seat rail 25 is fixed to the seat frame 30, and the seat traveling tool 34 is attached to the base frame 20. For this reason, when the seat frame 30 moves in the front-rear direction with respect to the base frame 20, the seat rail 25 moves in the front-rear direction with respect to the seat travel tool 34. In addition, according to the reclining chair 10 of this modified example, whether or not the seat traveling tool 34 is attached to the base frame 20 so as to be rotatable relative to the base frame 20 is an arbitrary selection item.

  -According to the reclining chair 10 of the modification of each embodiment, the back rail 26 is fixed to the back frame 50, and the back running tool 54 is attached to the base frame 20. For this reason, when the back frame 50 moves in the front-rear direction with respect to the base frame 20, the back rail 26 moves in the front-rear direction with respect to the back traveling tool 54. According to the reclining chair 10 of this modification, whether or not the back traveling tool 54 is attached to the base frame 20 so as to be able to rotate relative to the base frame 20 is an arbitrary selection item.

  -According to the reclining chair 10 of the modification of each embodiment, it replaces with the rotation frame 40, and the connection frame which connects the base frame 20 and the seat frame 30 mutually so that it can move to the front-back direction with respect to the base frame 20 Is provided. According to an example of this configuration, the electric telescopic mechanism 60 connects the connection frame and the base frame 20 to each other so as to extend toward the connection frame. In addition, a rail is formed on the base frame 20, and a traveling tool is attached to the base frame 20 side of the connection frame so that the connection frame can travel in the front-rear direction with respect to the rail.

  The electric telescopic mechanism 60 extends along the rail formed on the base frame 20 by extending toward the connection frame. For this reason, the seat frame 30 and the back frame 50 move in conjunction with each other and move forward with respect to the base frame 20, and the back frame 50 rotates around the connection portion with the seat frame 30.

-The number of sitting implements 34 is an optional item.
Whether or not the shape of the seat traveling tool 34 is a rectangular parallelepiped is an arbitrary selection item.
-The number of back running tools 54 is an arbitrary choice.

Whether or not the shape of the back running tool 54 is a rectangular parallelepiped is an arbitrary selection item.
The number of rotating frames 40 is an arbitrary choice.
-Whether or not to include the ottoman 14 in the reclining chair 10 is an arbitrary choice.

  -According to the reclining chair 10 of the modification of each embodiment, it is comprised as one object independent from the massage machine 1. FIG.

DESCRIPTION OF SYMBOLS 1 ... Massage machine 10 ... Reclining chair 11 ... Seat 20 ... Base frame 21 ... Installation frame 22 ... Connection installation frame 25 ... Seat rail 26 ... Back rail 30 ... Seat frame 34 ... Seat running tool 40 ... Rotation frame 50 ... Back frame 54 ... Back runner 125 ... Seat rail

Claims (23)

A base frame that constitutes the base of the seat,
A seat frame that can move in the front-rear direction with respect to the base frame;
A back frame connected to the seat frame so as to be able to rotate relative to the base frame while moving in the front-rear direction relative to the base frame in conjunction with the seat frame;
A seat rail fixed to the base frame and formed to extend in the front-rear direction with respect to the base frame;
A seat running tool supported by the seat rail and attached to the seat frame so that it can run in the front-rear direction with respect to the seat rail;
A reclining chair comprising: a connection frame that connects the base frame and the seat frame to each other so that the base frame and the seat frame can move or rotate in the front-rear direction with respect to the base frame. A base frame that constitutes the base of the seat,
A seat frame that can move in the front-rear direction with respect to the base frame;
A back frame connected to the seat frame so as to be able to rotate relative to the base frame while moving in the front-rear direction relative to the base frame in conjunction with the seat frame;
A seat rail fixed to the seat frame and formed to extend in the front-rear direction with respect to the base frame;
A seat running tool attached to the base frame;
A connection frame that connects the base frame and the seat frame to each other so that the base frame can move or rotate in the front-rear direction,
A reclining chair supported by the seat travel tool so that the seat rail can move in the front-rear direction with respect to the seat travel tool. The reclining chair according to claim 1 or 2, wherein the connection frame is a rotary frame that connects the base frame and the seat frame to each other so that the base frame and the seat frame can be rotated in the front-rear direction. The rotary frame is connected to the seat frame so that a front part of the seat frame rises with respect to a rear part as the seat frame moves forward with respect to the base frame. The reclining chair according to 3. As the seat frame moves further forward with respect to the base frame after the seat frame moves forward to a predetermined position so that the front portion of the seat frame rises with respect to the rear portion. The reclining chair according to claim 4, wherein the rotating frame is connected to the seat frame such that a front portion of the seat frame is lowered with respect to a rear portion. When the back frame forms a state of rotating most forward with respect to the base frame, a front end portion of the seat rail with respect to the base frame is located between the base frame and the rotary frame. The reclining chair according to any one of claims 3 to 5, wherein the rotating frame is connected to the base frame so as to take a rear position with respect to the base frame with respect to a connection portion. When the back frame forms a state of rotating most forward with respect to the base frame, a connection portion between the seat frame and the rotary frame is rearward with respect to the base frame with respect to a front end portion of the seat rail. The reclining chair according to claim 6, wherein the rotating frame is connected to the seat frame so as to take the position of the reclining chair. When the back frame forms a state in which the back frame rotates most rearward with respect to the base frame, a connection portion between the seat frame and the rotary frame is closer to the base frame than to a front end portion of the seat rail. The reclining chair according to any one of claims 3 to 7, wherein the rotary frame is connected to the seat frame so as to take a forward position. The reclining chair according to any one of claims 4 to 8, wherein the seat rail is straight. The reclining chair according to any one of claims 3 to 9, wherein the angle between the base frame and the rotating frame is set so that the rotating frame rotates within a range of 45 ° to 135 °. A back rail fixed to the base frame and formed to extend in the front-rear direction with respect to the base frame;
The reclining chair according to any one of claims 1 to 10, further comprising: a back travel tool supported by the back rail and attached to the back frame so as to travel in the front-rear direction with respect to the back rail. A back rail fixed to the back frame and formed to extend in the front-rear direction with respect to the base frame;
A back running tool attached to the base frame, and
The reclining chair according to any one of claims 1 to 10, wherein the back rail is supported by the back running tool so that the back rail can move in the front-rear direction with respect to the back running tool. A first seat stopper formed in a portion of the seat rail in front of the base frame and capable of contacting the seat running tool;
A second seat stopper formed in a rear portion of the seat rail with respect to the base frame and capable of contacting the seat running tool;
A first back stopper formed on a portion of the back rail in front of the base frame and capable of contacting the back running tool;
The reclining according to claim 11, further comprising at least one stopper of a second back stopper that is formed at a rear portion of the back rail with respect to the base frame and can come into contact with the back running tool. Chair. The base frame is formed to extend in the front-rear direction, which is the moving direction of the seat frame, and is disposed on the right side and the left side of the seat frame at intervals in the width direction of the seat frame, and the right side A connecting installation frame for connecting the installation frame and the left installation frame to each other;
Each of the right installation frame, the left installation frame, and the connection installation frame constitutes the bottom of the base frame,
The rotation frame connects the seat frame and the installation frame, or the seat frame and the connection installation frame to each other. 14. The method according to claim 4, wherein the rotation frame is directly or indirectly cited. Recliner chair listed. The reclining chair according to claim 14, wherein the rotating frame is connected to a front portion of the installation frame. The connecting installation frame connects the front part of the right installation frame and the front part of the left installation frame to each other;
The reclining chair according to claim 14, wherein the rotating frame connects the seat frame and the connection installation frame to each other. Comprising at least one of a first stopper, a second stopper, a third stopper, and a fourth stopper that regulate the rotation of the rotating frame by contacting the rotating frame;
The first stopper is formed on a front side of a connection portion between the connection installation frame and the rotation frame,
The second stopper is formed on a rear side of a connection portion between the connection installation frame and the rotation frame,
The third stopper is formed on the front side of the connection portion between the seat frame and the rotating frame,
The reclining chair according to claim 14 or 16, wherein the fourth stopper is formed on a rear side of a connection portion between the seat frame and the rotating frame. 14. When the rotating frame and the stopper come into contact with each other, spaces are formed between the seat running tool and the seat stopper and between the back running tool and the back stopper. The reclining chair according to claim 17 to be cited. The seat rail is disposed below the seat frame;
The said back rail is arrange | positioned below the said back frame. Reclining as described in any one of Claims 11-18, or Claim 13 or 18 which quotes 11 or 12 directly or indirectly. Chair. One or both of the seat travel tool and the back travel tool is constituted by a pinion gear,
13. A rack gear is formed on the inner surface of one or both of the seat rail and the back rail corresponding to the pinion gear, or directly or indirectly cited in claim 11 or 12. The reclining chair according to any one of claims 13 to 19. A base frame that constitutes the base of the seat,
A seat frame that can move in the front-rear direction with respect to the base frame;
A back frame connected to the seat frame so as to be able to rotate with respect to the base frame while moving in the front-rear direction with respect to the base frame;
A drive unit for rotating the back frame relative to the base frame by moving one of the seat frame and the back frame in the front-rear direction with respect to the base frame;
A seat rail fixed to the base frame and formed to extend in the front-rear direction with respect to the base frame;
A seat running tool supported by the seat rail and attached to the seat frame so as to be able to run in the front-rear direction with respect to the seat rail;
A reclining chair in which the drive unit is disposed in a space behind the back frame. A base frame that constitutes the base of the seat,
A seat frame that can move in the front-rear direction with respect to the base frame;
A back frame connected to the seat frame so as to be able to rotate with respect to the base frame while moving in the front-rear direction with respect to the base frame;
A drive unit for rotating the back frame relative to the base frame by moving one of the seat frame and the back frame in the front-rear direction with respect to the base frame;
A seat rail fixed to the seat frame and formed to extend in the front-rear direction with respect to the base frame;
A seat running tool attached to the base frame,
The drive unit is disposed in a space behind the back frame;
A reclining chair supported by the seat travel tool so that the seat rail can move in the front-rear direction with respect to the seat travel tool.   A massage machine provided with the reclining chair as described in any one of Claims 1-22.