Ottoman device

Abstract

To realize an ottoman device which can be suitably used.SOLUTION: An ottoman device 100 comprises: a bracket 10 attached to a seat frame F of a seat S; a leg rest 20 for supporting a user's leg; a connection member 30 to which the leg rest 20 is attached; a pair of left and right link parts 40 of which one end part is rotatably connected to the bracket 10 with a width direction of the seat S as an axial direction, and the other end part is rotatably connected to the connection member 30; and a drive part 50 which switches arrangement of the leg rest 20 between a storage position and an actuation position. Since the leg rest 20 is supported by the bracket 10 via the connection member 30 and the pair of left and right link parts 40, and supported by the bracket 10 via the drive part 50 and a holding part 53, a support rigidity of the leg rest 20 is improved compared to a conventional ottoman device in which a leg rest is supported by a pair of left and right 4-bar link mechanisms, and a posture of putting a leg on the leg rest 20 is stabilized.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an ottoman device. [Background technology]

[0002] 2. Description of the Related Art Conventionally, an ottoman device provided on a seat of a vehicle such as an automobile is known (see, for example, Patent Document 1). This ottoman device works by using an actuator to operate a pair of four-bar link mechanisms on the left and right sides to move the leg rest from a stored position to an operating position, making it possible for the user to rest their legs on the leg rest that has been switched to the operating position. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-248109 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the case of the ottoman device in Patent Document 1, the load on the leg rest is supported by a pair of four-bar link mechanisms on the left and right, which means that the support rigidity is low and the position of the legs on the leg rest may be unstable, potentially compromising the feel of use.

[0005] An object of the present invention is to provide an ottoman device that can be used conveniently. [Means for solving the problem]

[0006] In order to solve the above problems, the invention described in claim 1 is: A bracket that is attached to the seat frame of the seat; A leg rest for supporting the user's legs; A connecting member to which the leg rest is attached; a pair of left and right link portions, one end of which is rotatably connected to the bracket and the other end of which is rotatably connected to the connecting member, with the width direction of the seat being an axial direction; a drive unit that switches the position of the leg rest unit between a storage position adjacent to the bracket and an operating position away from the bracket; An ottoman device comprising: The bracket includes a bottom plate portion and Bottom plate part and a top surface portion connecting upper ends of the pair of left and right standing wall portions, the connecting member has a left connecting portion connected to the left link portion of the pair of left and right link portions, a right connecting portion connected to the right link portion, and a front connecting portion connecting front ends of the left connecting portion and the right connecting portion, and the leg rest portion is attached to the front connecting portion, the drive unit includes a motor and a drive shaft rotated by the motor, the motor is fixed to the leg rest, and the drive shaft is rotatably held by a holder provided on the bracket so that its position can be changed; one end of the pair of left and right link portions is connected to the pair of left and right upright wall portions of the bracket, The holder for holding the drive shaft of the motor is provided on the bottom plate of the bracket.

[0007] The invention described in claim 2 is the ottoman device described in claim 1, The front connecting portion has a substantially U-shape, The leg rest is attached to the front connecting portion with a substantially U-shaped contact area, The motor is fixed to the leg rest at a position surrounded by the substantially U-shaped front connecting portion.

[0008] The invention described in claim 3 is the ottoman device described in claim 1 or 2, The seat frame includes a pan frame that is stretched across a pair of left and right side frames, The top surface of the bracket is attached to the pan frame.It is characterized by:

[0009] The invention described in claim 4 is the ottoman device according to any one of claims 1 to 3, The left connecting portion and the right connecting portion are each provided with a reinforcing member aligned along the extending direction thereof, The other end of the link portion is connected to the connecting member via the reinforcing member.

[0010] The invention described in claim 5 is the ottoman device according to any one of claims 1 to 4, each of the pair of left and right link portions includes a front link disposed near the front connecting portion and a rear link disposed rearward of the front link, The front link and the rear link are configured to have different lengths.

[0011] The invention described in claim 6 is the ottoman device according to any one of claims 1 to 5, The seat frame includes a pan frame that is stretched across a pair of left and right side frames, and the pan frame is provided with a ventilation opening, The bracket of the ottoman device is characterized in that it is disposed below the pan frame and attached at a position that does not overlap with the opening. Effect of the Invention

[0012] According to the invention described in claim 1, the position of the leg rest of the ottoman device can be conveniently switched from the stored position to the operating position, and the user can place their legs on the leg rest that has been switched to the operating position. The leg rest of this ottoman device is supported on a bracket via a connecting member and a pair of left and right link sections, and is also supported on the bracket via a drive section and a retaining section. As a result, the support rigidity of the leg rest is improved compared to the ottoman device of Patent Document 1 above (an ottoman device in which the leg rest is supported by a pair of left and right four-bar link mechanisms), and the position of the legs resting on the leg rest is stable. Furthermore, since the pair of left and right link portions are connected to the connecting member and attached to the leg rest portion via the connecting member, the position in which the legs are placed on the leg rest portion can be easily stabilized. In addition, the pair of left and right link portions that support the leg rest of the ottoman device are connected to a pair of left and right vertical wall portions, and the pair of left and right vertical wall portions are connected together by a bottom plate portion. This makes it possible to increase the supporting rigidity of the leg rest by the pair of left and right link portions compared to when the left link portion and the right link portion are each connected to separate members. Furthermore, since the holder for holding the drive shaft of the motor is provided on the bottom plate of the bracket, the force supporting the leg rest can be distributed and supported on the bracket.

[0013] According to the invention described in claim 2, the leg rest of the ottoman device is attached with an approximately U-shaped contact area with the front connecting portion of the connecting member, and the motor of the drive unit is fixed at a position on the leg rest that is surrounded by the approximately U-shaped front connecting portion, thereby making it possible to further increase the support rigidity of the leg rest.

[0014] According to the invention described in claim 3, The same effects as those of the invention described in claim 1 can be obtained.

[0015] According to the invention recited in claim 4, reinforcing members are provided on the left and right connecting portions of the connecting member supporting the leg rest portion of the ottoman device, thereby making it possible to increase the supporting rigidity of the leg rest portion by the connecting member.

[0016] According to the invention as recited in claim 5, the pair of left and right link parts enables the position of the leg rest part to be smoothly switched.

[0017] According to the invention described in claim 6, the bracket of the ottoman device is attached at a position that does not overlap with the opening of the pan frame, so that, for example, it is possible for the airflow from a blower device attached to the underside of the pan frame to be blown to the upper surface of the seat. In this way, it is possible to ensure both an attachment area for the ottoman device and an attachment area for the air blower device or the like. [Brief description of the drawings]

[0018] [Figure 1] 1 is a perspective view showing an ottoman device according to an embodiment of the present invention, illustrating a state in which a leg rest is in a storage position. [Diagram 2] 1 is a perspective view showing the ottoman device of the present embodiment, illustrating a state in which the leg rest is in a first operating position. [Diagram 3] 1 is a perspective view showing the ottoman device of the present embodiment, illustrating a state in which the leg rest portion is in a second operating position. [Figure 4] 1 is a perspective view showing an ottoman device attached to a seat frame, with the leg rest portion being in a retracted position; FIG. [Diagram 5] FIG. 2 is a perspective view showing the ottoman device attached to the seat frame, showing a state in which the leg rest portion is in a first operating position. [Figure 6] 1 is a perspective view showing the ottoman device attached to the seat frame, with the leg rest portion in a second operating position. FIG. [Figure 7] FIG. 2 is a side view of the ottoman device, showing the leg rest portion in a retracted position. [Figure 8] FIG. 2 is a side view of the ottoman device, showing the leg rest portion in a first operating position. [Figure 9] FIG. 2 is a side view of the ottoman device, showing the leg rest in a second operating position. [Figure 10] FIG. 2 is a perspective view showing a seat frame to which the ottoman device is attached. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, an embodiment of the ottoman device according to the present invention will be described in detail with reference to the drawings. However, the embodiment described below is subject to various technically preferable limitations for implementing the present invention, but the scope of the present invention is not limited to the following embodiment and illustrated examples.

[0020] In the following description, the seat refers to a vehicle seat such as a car seat, an aircraft seat, or a ship seat, but is not limited to a vehicle seat. In the following description, the front-rear direction, left-right direction, and up-down direction are defined as shown in Fig. 4. Here, the side of the seat on which the ottoman device is disposed is the "front," the opposite side is the "rear," the left hand side when seated on the seat and looking forward is the "left," and the right hand side when seated on the seat and looking forward is the "right," and the up-down direction corresponds to the vertical direction. In other words, the width direction of the seat corresponds to the left-right direction.

[0021] The ottoman device 100 of this embodiment, as shown in Figures 1 to 3 and 4 to 6, comprises a bracket 10 attached to a seat frame F of a seat S, a leg rest 20 supporting the legs of the user, a connecting member 30 to which the leg rest 20 is attached, a pair of left and right link portions 40 having one end rotatably connected to the bracket 10 and the other end rotatably connected to the connecting member 30 with the width direction of the seat S as the axial direction, and a drive unit 50 for switching the position of the leg rest 20 between a stored position close to the bracket 10 and an operating position away from the bracket 10. In the figure, of the pair of left and right link portions 40, the right link portion 40 shown at the back is difficult to see, but the right link portion 40 is arranged symmetrically in the width direction of the sheet S with the left link portion 40 shown at the front. Although only the seat frame F of the seat S is shown in Figs. 4 to 6, a cushion and a cover are attached to the seat frame F to constitute the seat S on which a user sits.

[0022] The bracket 10 is a member formed, for example, by bending or welding a metal plate, and has a bottom plate portion 13, a pair of left and right vertical wall portions 11, 12 standing on either side of the bottom plate portion 13, and a top surface portion 14 connecting the upper ends of the pair of left and right vertical wall portions 11, 12. The bracket 10 is attached to the seat frame F by means of screws or the like, and the ottoman device 100 is assembled to the seat S. Specifically, the bracket 10 is attached to the front lower part of the cushion frame of the seat frame F, and the ottoman device 100 is disposed on the front lower part of the seat S.

[0023] The leg rest portion 20 is, for example, a flat metal plate member, and a connecting member 30 is attached to the rear side of this plate-like leg rest portion 20. The seat is used in such a manner that an ottoman pad (not shown) is attached to the leg rest portion 20.

[0024] The connecting member 30 is, for example, a member formed by bending a metal pipe, and has a left connecting portion 31 connected to the left link portion 40, a right connecting portion 32 connected to the right link portion 40, and a front connecting portion 33 connecting the front ends of the left connecting portion 31 and the right connecting portion 32. The leg rest portion 20 is attached to the front connecting portion 33 of the connecting member 30. The front connecting portion 33 has a substantially U-shape, and the leg rest portion 20 is attached to the front connecting portion 33 with a substantially U-shaped contact area therebetween.

[0025] Furthermore, the left connecting portion 31 and the right connecting portion 32 of the connecting member 30 are portions that extend linearly, and the left connecting portion 31 and the right connecting portion 32 are each provided with a reinforcing member 60 aligned along the extension direction. The reinforcing member 60 is a member formed by bending a metal plate, and is provided to increase the rigidity of the left connecting portion 31 and the right connecting portion 32. The reinforcing member 60 here has an edge portion 61 having a U-shape in cross section, and this edge portion 61 is disposed so as to surround the left connecting portion 31 and the right connecting portion 32 from three directions. The reinforcing member 60 may have an edge portion 61 having an "L" shape in cross section, and the edge portion 61 may be disposed so as to surround the left connecting portion 31 and the right connecting portion 32 from two directions.

[0026] Each of the pair of left and right link portions 40 includes a front link 41 disposed near the front connecting portion 33 and a rear link 42 disposed rearward of the front link 41. The front link 41 and the rear link 42 have different lengths, with the front link 41 being longer than the rear link 42. The front link 41 and the rear link 42 are disposed in the front-rear direction along a direction intersecting the width direction of the seat S (here, a direction perpendicular to the width direction). The front link 41 and the rear link 42 each have one end (lower end) rotatably connected to the vertical wall portions 11, 12 of the bracket 10, and the other end (upper end) rotatably connected to the connecting member 30 (left connecting portion 31, right connecting portion 32). The pair of left and right link parts 40 thus configured allows the position of the leg rest part 20 to be smoothly switched.

[0027] Here, the other end (upper end) of the front link 41 and the rear link 42 are rotatably connected to a reinforcing member 60 arranged in the left connecting portion 31 and the right connecting portion 32, and the front link 41 and the rear link 42 are connected to the left connecting portion 31 and the right connecting portion 32, respectively, via the reinforcing member 60. In other words, the reinforcing member 60 also has the function of connecting the link portion 40 and the connecting member 30 . Alternatively, the other end (upper end) of the front link 41 and the rear link 42 may be connected to the left connecting part 31 and the right connecting part 32, respectively, without using the reinforcing member 60.

[0028] The driving unit 50 includes a motor 51 and a driving shaft 52 that is rotated by the motor 51. The motor 51 is a so-called screw motor, and the driving shaft 52 is a screw shaft. The motor 51 is fixed to the rear surface side of the leg rest 20. In particular, the motor 51 is fixed to the leg rest 20 at a position surrounded by the front connecting portion 33 having a substantially U-shape. The drive shaft 52 is rotatably held by a holding portion 53 provided on the bottom plate portion 13 of the bracket 10 so that its position can be changed. The holding portion 53 is erected on the bottom plate portion 13 of the bracket 10, and supports a nut 53a corresponding to the drive shaft 52 of the motor 51 in a swingable manner on its upper portion. The drive shaft 52 of the motor 51 is screwed into a nut 53a that is supported in a swingable manner on the holding portion 53, and while the drive shaft 52 is screwed into the nut 53a of the holding portion 53, the drive shaft 52 is capable of rotating with its axial direction intersecting the width direction of the sheet S.

[0029] Next, the operation of the ottoman device 100 of this embodiment will be described with reference to FIGS. 1 to 3, 4 to 6, and 7 to 9. FIG. In the side views of the ottoman device 100 shown in FIGS. 7 to 9, the connecting member 30, the link portion 40, and the reinforcing member 60 are omitted in order to make it easier to visually confirm the operating state and posture of the driving portion 50.

[0030] When the ottoman device 100 is not in use, the leg rest portion 20 is disposed in a storage position adjacent to the bracket 10, as shown in Figs. At this time, as shown in FIG. 7, the amount of movement of the drive unit 50 is "0 mm", and the nut 53a of the holding unit 53 is at the base position of the drive shaft 52 closer to the motor 51.

[0031] In order to use the ottoman device 100, a switch (not shown) is operated to drive the motor 51 so that the operating amount of the drive unit 50 is set to, for example, "20 mm," and the drive shaft 52 is rotated in the forward direction. As shown in Figures 2, 5, and 8, the nut 53a of the holding portion 53 moves toward the tip side of the drive shaft 52, causing the drive unit 50 to move forward relatively from the holding portion 53, the front link 41 and the rear link 42 each tilt forward, and the foot rest portion 20 attached to the connecting member 30 is positioned in a first operating position spaced away from the bracket 10. For example, when the amount of movement of the drive portion 50 is "20 mm," the nut 53a of the holding portion 53 is located at a position toward the center of the drive shaft 52, as shown in FIG.

[0032] Furthermore, by operating a switch (not shown) to drive motor 51 so that the operating amount of drive unit 50 is, for example, "40 mm," and drive shaft 52 is rotated in the forward direction, as shown in Figures 3, 6, and 9, nut 53a of holding portion 53 moves further toward the tip of drive shaft 52, causing drive unit 50 to move relatively further forward from holding portion 53, and causing front link 41 and rear link 42 to each tilt further forward, and leg rest portion 20 attached to connecting member 30 to be positioned in a second operating position further away from bracket 10. For example, when the amount of movement of the drive portion 50 is "40 mm," the nut 53a of the holding portion 53 is at a position on the shaft tip side of the drive shaft 52, as shown in FIG.

[0033] In this manner, the leg rest portion 20 of the ottoman device 100 is placed in the first operating position or the second operating position, and the user places his / her legs on the leg rest portion 20 for use. Although the position of the leg rest portion 20 has been described here as being switchable between two operating positions, a first operating position (operating amount "20 mm") and a second operating position (operating amount "40 mm"), the position of the leg rest portion 20 may be arbitrary within the range in which the nut 53a can move along the drive shaft 52. For example, the position of the leg rest portion 20 may be switched so that the operating amount of the drive portion 50 is "15 mm" or "35 mm".

[0034] When the user wishes to stop using the ottoman device 100, a switch (not shown) is operated to drive the motor 51 so as to set the operating amount of the drive unit 50 to "0 mm" and rotate the drive shaft 52 in the reverse direction. As shown in Figures 1, 4 and 7, the nut 53a of the holding portion 53 moves toward the base side of the drive shaft 52, causing the drive unit 50 to move relatively backward, the front link 41 and the rear link 42 to rise, and the foot rest portion 20 attached to the connecting member 30 to be returned to the storage position close to the bracket 10.

[0035] As described above, the ottoman device 100 of this embodiment can suitably switch the position of the leg rest portion 20 from the stored position to the operating position, and the user can place their legs on the leg rest portion 20 that has been switched to the operating position.

[0036] The leg rest portion 20 of this ottoman device 100 is supported on the bracket 10 via a connecting member 30 and a pair of left and right link portions 40, and is also supported on the bracket 10 via a drive portion 50 and a holding portion 53. Therefore, the support rigidity of the leg rest portion 20 is improved compared to the ottoman device of Patent Document 1 mentioned above (an ottoman device in which the leg rest portion is supported by a pair of left and right four-bar link mechanisms), and the position of the legs placed on the leg rest portion 20 is stable. In particular, since the pair of left and right link portions 40 are connected to the connecting member 30 and attached to the leg rest portion 20 via the connecting member 30, the posture in which the legs are placed on the leg rest portion 20 is easily stabilized.

[0037] In addition, the leg rest portion 20 of this ottoman device 100 is attached with a substantially U-shaped contact area with the front connecting portion 33 of the connecting member 30, and the drive unit 50 is fixed at a position on the leg rest portion 20 surrounded by the substantially U-shaped front connecting portion 33, thereby further improving the support rigidity of the leg rest portion 20.

[0038] In addition, the pair of left and right link portions 40 supporting the leg rest portion 20 of this ottoman device 100 are connected to a pair of left and right vertical wall portions 11, 12, and the pair of left and right vertical wall portions 11, 12 are connected together by a bottom plate portion 13, thereby improving the supporting rigidity of the leg rest portion 20 by the pair of left and right link portions 40 compared to when the left link portion 40 and the right link portion 40 are each connected to separate members.

[0039] In addition, a reinforcing member 60 is provided on the left connecting portion 31 and the right connecting portion 32 of the connecting member 30 that supports the leg rest portion 20 of this ottoman device 100, thereby improving the supporting rigidity of the leg rest portion 20 by the connecting member 30.

[0040] In this manner, the ottoman device 100 of this embodiment has improved support rigidity in each portion that supports the leg rest portion 20, and the position in which the legs are placed on the leg rest portion 20 is stable, making it suitable for use.

[0041] The present invention is not limited to the above-described embodiment. For example, as shown in FIG. 10, a seat frame F includes a pair of left and right side frames 1, 1 and a pan frame 2 that is suspended between the side frames 1, 1, and the pan frame 2 is provided with a ventilation opening 2a. The bracket 10 of the ottoman device 100 is disposed below the pan frame 2 and attached at a position not overlapping with the opening 2 a of the pan frame 2 . Here, the bracket 10 is attached in such a position that the top surface 14 does not overlap with the opening 2 a of the pan frame 2 .

[0042] The opening 2a of the pan frame 2 is provided to correspond to the mounting area of ​​a blower device (not shown) such as a small fan, so that, for example, air from a blower device (not shown) mounted on the underside of the pan frame 2 can be blown so that the airflow passes through to the upper surface of the seat. This makes it possible to ensure both an installation area for the ottoman device 100 and an installation area for the air blower device. The opening 2a of the pan frame 2 need not be used as an attachment area for the air blower device, but may also be used as an attachment area for other devices, such as an electronic control unit.

[0043] The application of the present invention is not limited to the above-described embodiment, and can be modified as appropriate without departing from the spirit of the present invention. [Explanation of symbols]

[0044] 10 Bracket 11 Vertical wall 12 Vertical wall 13 Bottom plate part 14 Top section 20 Leg rest 30 Connecting members 31 Left side connection part 32 Right side connection part 33 Front connection part 40 Link section (pair of left and right links) 41 Front link 42 Rear link 50 Drive unit 51 Motor 52 Drive shaft 53 Holding part 53a Nut 60 Reinforcement member 61 Edge 100 Ottoman device S Seat Seat frame, front 1 Side frame 2 Pan Frame 2a opening

Claims

1. A bracket that is attached to the seat frame of the seat; A leg rest for supporting the user's legs; A connecting member to which the leg rest is attached; a pair of left and right link portions, one end of which is rotatably connected to the bracket and the other end of which is rotatably connected to the connecting member, with the width direction of the seat being an axial direction; a drive unit that switches the position of the leg rest unit between a storage position adjacent to the bracket and an operating position away from the bracket; An ottoman device comprising: the bracket has a bottom plate portion, a pair of left and right standing wall portions standing on either side of the bottom plate portion, and a top surface portion connecting upper ends of the pair of left and right standing wall portions, the connecting member has a left connecting portion connected to the left link portion of the pair of left and right link portions, a right connecting portion connected to the right link portion, and a front connecting portion connecting front ends of the left connecting portion and the right connecting portion, and the leg rest portion is attached to the front connecting portion, the drive unit includes a motor and a drive shaft rotated by the motor, the motor is fixed to the leg rest, and the drive shaft is rotatably held by a holder provided on the bracket so that its position can be changed; one end of the pair of left and right link portions is connected to the pair of left and right upright wall portions of the bracket, The ottoman device according to claim 1, wherein the holder for holding the drive shaft of the motor is provided on the bottom plate of the bracket.

2. The front connecting portion has a substantially U-shape, The leg rest is attached to the front connecting portion with a substantially U-shaped contact area, 2. The ottoman device according to claim 1, wherein the motor is fixed to the leg rest portion at a position surrounded by the substantially U-shaped front connecting portion.

3. The seat frame includes a pan frame that is stretched across a pair of left and right side frames, 3. The ottoman device according to claim 1, wherein the top surface of the bracket is attached to the pan frame.

4. The left connecting portion and the right connecting portion are each provided with a reinforcing member aligned along the extending direction thereof, 4. The ottoman device according to claim 1, wherein the other end of the link portion is connected to the connecting member via the reinforcing member.

5. each of the pair of left and right link portions includes a front link disposed near the front connecting portion and a rear link disposed rearward of the front link, 5. The ottoman device according to claim 1, wherein the front link and the rear link are configured to have different lengths.

6. The seat frame includes a pan frame that is stretched across a pair of left and right side frames, and the pan frame is provided with a ventilation opening, The ottoman device according to any one of claims 1 to 5, characterized in that the bracket of the ottoman device is positioned below the pan frame and attached in a position that does not overlap with the opening.

Images