CN104057855B - Vehicular seats legs and feet support device - Google Patents
Vehicular seats legs and feet support device Download PDFInfo
- Publication number
- CN104057855B CN104057855B CN201410079916.0A CN201410079916A CN104057855B CN 104057855 B CN104057855 B CN 104057855B CN 201410079916 A CN201410079916 A CN 201410079916A CN 104057855 B CN104057855 B CN 104057855B
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- Prior art keywords
- link
- leg
- base end
- rotation
- foot support
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- 230000008878 coupling Effects 0.000 description 12
- 238000010168 coupling process Methods 0.000 description 12
- 238000005859 coupling reaction Methods 0.000 description 12
- 230000003028 elevating effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Passenger Equipment (AREA)
- Seats For Vehicles (AREA)
Abstract
The present invention relates to vehicular seats legs and feet support device, legs and feet support zone reduces the inlet of the first cardinal extremity chaining part and the second cardinal extremity chaining part to the space between seat front and vehicle floor face when reception position.Vehicular seats legs and feet support device has：It is fixed on the fixed part of seat；The legs and feet support portion that can be moved between the reception position close to fixed part and the using area far from fixed part；Connecting portion and legs and feet support portion, the chaining part mechanism for making legs and feet support portion be moved to reception position and using area by stretching, chaining part mechanism have：First chaining part group, the first cardinal extremity chaining part that there is support legs and feet support portion and leave the first contact links part of fixed part and be rotatably coupled only with respect to the first contact links part and fixed part；Second chaining part group, the second cardinal extremity chaining part that there is support legs and feet support portion and leave the second contact links part of fixed part and be rotatably coupled only with respect to the second contact links part and fixed part.
Description
Technical Field
The present invention relates to a leg and foot support device (オットマン device) for a vehicle seat, which is used by being attached to a vehicle seat.
Background
As a conventional technique of a leg and foot support device for a vehicle seat, for example, there is a technique disclosed in patent document 1.
The leg/foot support device is provided with: the vehicle seat includes a fixing portion (bracket) fixed to a front portion of a seat cushion of the vehicle seat, a link mechanism having one end (rear end) supported by the fixing portion so as to be extendable and retractable, and a leg/foot support portion supported by the other end (front end) of the link mechanism.
The link mechanism includes a first link group and a second link group.
The first link group includes: the first base end link is rotatably connected with the fixed part, and the first link is connected with one end rotatably connected with the first base end link and the other end rotatably connected with the leg and foot supporting part.
On the other hand, the second link group includes: a second base end link rotatably connected to the fixed portion, and a second link (composed of a plurality of links) having one end rotatably connected to the second base end link and the other end rotatably connected to the leg/foot support portion.
In addition, an intermediate portion of a second link (one link constituting the second link) is rotatably connected to an intermediate portion of the first base-end link.
When the link mechanism is in a contracted state close to the fixing portion side, the leg-and-foot supporting portion is located at a storage position close to the fixing portion side.
On the other hand, when the link mechanism is in the extended state extending forward, the leg/foot support portion moves from the storage position to the use area forward. Therefore, the passenger seated on the seat can place his or her legs on the leg and foot support portions.
Documents of the prior art
Patent document
Patent document 1: japanese patent No. 4645315
Disclosure of Invention
(problems to be solved by the invention)
In general, a seat cushion of a seat is attached to a vehicle floor surface via a slide rail device or the like provided on the vehicle floor surface, and a space is formed between a front portion of the seat cushion and the vehicle floor surface. In addition, a slide driving device for driving a seat (an upper rail of the slide rail device) to slide with respect to a vehicle floor surface (a lower rail of the slide rail device), a lifting device for lifting and lowering a front portion of the seat cushion with respect to a rear portion, and the like are often disposed in the space.
The fixing portion of the leg supporting device is fixed to the front portion of the seat cushion, and therefore, when the link mechanism is in the retracted state with the leg supporting portion in the storage position, the first and second base end links enter the space between the front portion of the seat cushion and the floor surface of the vehicle.
However, since the slide drive device, the lift device, or the like is disposed in the space, when the amount of entry of the first base end link and the second base end link into the space when the leg/foot support section is in the storage position increases, there is a possibility that the first base end link and the second base end link may interfere with the slide drive device or the lift device.
Therefore, it is desirable to reduce the amount of entry of the first base end link and the second base end link into the space when the leg/foot support portion is at the storage position.
However, in the leg support device of patent document 1, since the intermediate portion of the first base end link and the intermediate portion of the second link (one link constituting the second link) are rotatably connected, the first base end link and the second base end link mutually restrict the rotational movement of each other. Therefore, the degree of freedom in designing the turning trajectories of the first and second base end links is reduced, and it is therefore difficult to reduce the amount of entry of the first and second base end links into the space when the leg/foot support portion is at the storage position.
The invention provides a leg and foot support device for a vehicle seat, which can reduce the entering amount of a first base end link and a second base end link to a space between a seat front part and a vehicle floor surface when a leg and foot support part is positioned at a storage position.
(means for solving the problems)
The leg/foot support device of the present invention is characterized by comprising: a fixing portion fixed to a vehicle seat; a leg support portion movable between a storage position close to the fixing portion and a use area far from the fixing portion; a link mechanism that connects the fixed portion and the leg support portion and moves the leg support portion to the storage position and the use area by extending and contracting, the link mechanism including: a first link group having a first link member supporting the leg/foot support portion and separated from the fixing portion, and a first base link member rotatably connected only to the first link member and the fixing portion; and a second link group having a second link member supporting the leg-and-foot supporting portion and separated from the fixed portion, and a second base end link member rotatably connected only to the second link member and the fixed portion.
The leg and foot support device of the present invention may be as follows: the second base end link includes: a first connecting portion extending from a rotation center which is a rotation connecting portion with respect to the fixing portion and rotatably connected with respect to a restricting unit capable of restricting rotation of the second base end link; a second connecting portion extending from the rotation center in a direction intersecting with respect to the first connecting portion and rotatably connected to the second linking member.
The leg and foot support device of the present invention may be as follows: the second base end link includes: a first connecting portion extending from a rotation center which is a rotation connecting portion with respect to the fixing portion and rotatably connected with respect to a restricting unit capable of restricting rotation of the second base end link; and a second connecting portion that extends from the rotation center in a direction different from the first connecting portion and is rotatably connected to the second linking member, wherein a distance from the rotation connecting portion of the restriction unit and the first connecting portion to the rotation center and a distance from the rotation connecting portion of the second linking member and the second connecting portion to the rotation center are made different from each other.
The leg and foot support device of the present invention may be as follows: the limiting unit includes: a rotation restricting link rotatably connected with the first connecting portion; a locking unit which is linked with the rotation limiting link and can switch an unlocking state allowing the rotation of the rotation limiting link and a locking state limiting the rotation.
(Effect of the invention)
In the leg/foot support device for a vehicle seat according to the present invention, the first base end link is rotatably connected only to the first link and the fixing portion, and the second base end link is rotatably connected only to the second link and the fixing portion.
That is, since the first base end link and the second base end link are not rotatably connected to each other, the first base end link and the second base end link do not mutually restrict the rotational movement of each other.
Therefore, the degree of freedom in designing the turning locus of the first base end link and the second base end link is improved as compared with the case where the first base end link and the second base end link are rotatably connected. Therefore, when the leg/foot support portion is located at the storage position, the amount of entry of the first base end link and the second base end link into the space between the seat front portion and the vehicle floor surface can be reduced.
In the case where the second base end link is configured as a straight member as compared with the case where the second base end link is configured as a straight member, the amount of insertion of the second base end link into the space when the leg/foot support portion is located at the storage position can be further reduced.
With the configuration of the third aspect of the present invention, the amount of relative movement of the leg/foot support portion (link mechanism) with respect to the fixed portion can be adjusted.
With the configuration of the fourth aspect of the present invention, the restricting unit can be disposed in a limited space (the degree of freedom of disposition is improved).
Drawings
Fig. 1 is a side view showing a seat cushion of a vehicle seat and a leg supporting device attached to a front portion of the seat cushion according to an embodiment of the present invention, with a leg supporting portion being located at a storage position and a motor and an advancing and retreating member being omitted.
Fig. 2 is a side view of the leg/foot support device when the leg/foot support portion is moved to the front end position.
Fig. 3 is an exploded perspective view of the leg and foot support device.
Fig. 4 is a perspective view of the leg/foot support device when the leg/foot support portion is in the storage position.
Fig. 5 is a perspective view of the leg/foot support device when the leg/foot support portion is at the front end position.
Description of the symbols
10 vehicle seat
11 seat cushion
13 leg and foot supporting device
14A fixed part
14B fixing part
15-link mechanism
15A first Link group
15B second Link group
16 connecting shaft (limiting unit)
17 first base end link (restriction unit)
17a concave part for combination
18 second base end link
18a center hole of rotation (center of rotation)
18b first connection part
18c second connecting part
20 rotating connecting pin
21 leg and foot supporting part side rear link (first link)
22 swivel connecting pin
24 intermediate link (second link connector)
25. 26 rotating connecting pin
28 leg and foot support side front Link (second Link)
29 rotating connecting pin
31 integral rotating link (restriction unit) (rotating restriction link)
31a coupling recess
33 interlocking link (restriction unit) (rotation restriction link)
34. 35, 36, 37 rotating connecting pin
38 leg and foot supporting part
39 substrate
40 seat cushion
42 drive support member
45 driving device
46 spindle (limiting unit)
47 rotating connecting pin
49 Motor (restriction unit) (locking unit)
50 casing
51 cylindrical projection
52 motor through hole
54 advancing and retreating member (restricting unit)
55 fixed hole
56 mounting plate
57 mounting hole
59 rotating connecting pin (limiting unit)
And (4) an S space.
Detailed Description
An embodiment of the present invention will be described below with reference to the drawings. Note that directions in the following description are based on directions of arrows in the drawings.
A pair of left and right slide rail devices (not shown) is provided on a floor surface in a vehicle interior of a vehicle having a vehicle seat 10 shown in fig. 1. The left and right slide rail devices include a lower rail fixed to the floor surface of the vehicle and extending in the front-rear direction, and an upper rail slidably supported by the lower rail. A seat cushion 11 of the vehicle seat 10 is fixed to the upper surfaces of the left and right upper rails, and a seat back (not shown) is rotatably attached to the rear portion of the seat cushion 11. As shown in the drawing, a space S is formed between the front portion of the seat cushion 11 and the floor surface of the vehicle. A slide rail motor (not shown) fixed to the lower rail is disposed in the space S. When the motor for the slide rail is rotated forward, the upper rails (the seat cushion 11 and the seat back) move forward relative to the lower rails, and when the motor for the slide rail is rotated backward, the upper rails (the seat cushion 11 and the seat back) move backward relative to the lower rails.
A lifting mechanism (not shown) is provided between the front portion of the upper rail and the front portion of the seat cushion 11. The lifting mechanism is provided with a lifting link mechanism which can be extended and retracted in the vertical direction, and a lifting motor for extending and retracting the link mechanism. The lifting mechanism is also disposed in the space S. When the elevating motor is rotated forward, the elevating link mechanism is extended, and therefore, the front portion of the seat cushion 11 is lifted upward relative to the rear portion. On the other hand, when the elevating motor is reversed, the elevating link mechanism is retracted, and the front portion of the seat cushion 11 is lowered relative to the rear portion.
A power type leg/foot support device 13 is attached to a front end portion of a lower surface of a seat cushion 11 of the vehicle seat 10.
The leg/foot support device 13 has a structure as described below.
The leg/foot support device 13 includes a pair of left and right fixing portions 14A, 14B. Both ends of a cylindrical coupling shaft 16 extending in the left-right direction are rotatably fitted into circular holes formed in the left and right fixing portions 14A, 14B, respectively. The coupling concave portions 17a formed on both left and right side walls of the first base end link 17 having the コ -shaped cross section are fitted in a fixed state at two positions of the coupling shaft 16. Further, a pair of left and right second base end links 18 are rotatably connected to the left and right fixing portions 14A and 14B, respectively, by a pair of rotating connecting pins 20 extending in the left and right direction. The second base link 18 is substantially L-shaped in side view, and includes a first connection portion 18b linearly extending from a pivot center hole 18a (pivot center) through which the pivot connecting pin 20 passes, and a second connection portion 18c linearly extending from the pivot center hole 18a in a direction different from that of the first connection portion 18 b. At the front end portions of both side walls of the first base end link 17, the rear end portions of a pair of left and right leg supporting portion side rear links 21 (first link links) are rotatably connected by a pair of left and right rotating connecting pins 22 extending in the left and right directions. At the front end of the second connecting portion 18c of the left and right second base end links 18, the rear end of an intermediate link 24 (second link) extending in a direction substantially parallel to the first base end link 17 is rotatably connected. The intermediate link 24 is formed in a cross-sectional shape of コ, and rear end portions of both left and right side walls thereof are rotatably connected to front end portions of the second connecting portions 18c of the left and right second base link 18, respectively, by a pair of pivot connecting pins 25 extending in the left-right direction. Further, the intermediate portions of the left and right leg supporting portion side rear link 21 and the intermediate portions of the left and right side walls of the intermediate link 24 are rotatably connected to each other by a pair of rotating connecting pins 26 extending in the left-right direction. Further, rear end portions of a pair of left and right leg support side front links 28 (second links) parallel to the leg support side rear links 21 are rotatably connected to each other at front end portions of both left and right side walls of the intermediate link 24 by a pair of rotating connecting pins 29 extending in the left-right direction. As shown, the overall length of the leg-foot supporting-side forward link 28 is substantially half of the leg-foot supporting-side rearward link 21.
Further, the integral pivotal links 31 (pivotal restricting links) having a substantially triangular shape in side view are respectively positioned on both left and right sides of the first base end link 17, are recessed in the coupling recesses 31a of the left and right integral pivotal links 31, and are respectively fitted in the vicinity of both left and right ends of the coupling shaft 16 in a fixed state. A pair of left and right interlocking links 33 (rotation restricting links) are located outside the left and right integral pivotal links 31, respectively, and one end of the interlocking link 33 is rotatably connected to an end of the integral pivotal link 31 opposite to the coupling recess 31a via a pair of pivotal connecting pins 34 extending in the left-right direction. The other end portions of the left and right link links 33 are rotatably connected to the distal end portions of the first connecting portions 18b of the left and right second base end links 18 via a pair of pivot connecting pins 35 extending in the left-right direction. As shown, the straight distance from the pivot connecting pin 20 (the pivot center hole 18a of the second base end link 18) to the pivot connecting pin 25 is longer than the straight distance from the pivot connecting pin 20 to the pivot connecting pin 35.
The coupling shaft 16, the first base end link 17, the second base end link 18, the pivot connecting pin 20, the leg support portion side rear link 21, the pivot connecting pin 22, the intermediate link 24, the pivot connecting pin 25, the pivot connecting pin 26, the leg support portion side front link 28, the pivot connecting pin 29, the integral pivot link 31, the interlocking link 33, the pivot connecting pin 34, and the pivot connecting pin 35 described above are components of the link mechanism 15. The coupling shaft 16, the first base link 17, the leg-and-foot-supporting-portion-side rear link 21, and the pivot connecting pin 22 are components of the first link group 15A, and the second base link 18, the pivot connecting pin 20, the intermediate link 24, the pivot connecting pin 25, the leg-and-foot-supporting-portion-side front link 28, and the pivot connecting pin 29 are components of the second link group 15B. The link mechanism 15 can be deformed into a contracted state shown in fig. 1 and 4, a maximum expanded state shown in fig. 2 and 5, and a state between the contracted state and the maximum expanded state.
A leg support portion 38 is attached to the front end portions of the left and right leg support portion side rear links 21 and the leg support portion side front links 28 of the link mechanism 15. The leg support portion 38 includes a rectangular base plate 39 that is long in the left-right direction, and a seat cushion 40 (see the imaginary line in fig. 1) that is fixed to the surface and the peripheral surface of the base plate 39.
The ends of the left and right leg support side front links 28 are rotatably connected to the left and right side walls of the base plate 39 by a pair of left and right rotation connecting pins 36 extending in the left and right directions. Further, the ends of the left and right leg supporting portion side rear link 21 are rotatably connected to both left and right side walls of the base plate 39 by a pair of left and right rotation connecting shafts 37 extending in the left and right direction. Since the leg support portion 38 is supported by the link mechanism 15 (the leg support portion side rear link 21 and the leg support portion side front link 28) so as to be rotatable in this way, it changes the distance in the front-rear direction with respect to the fixing portions 14A and 14B in conjunction with the contraction operation and the expansion operation of the link mechanism 15. That is, when the link mechanism 15 is in the contracted state, the leg/foot support portion 38 is located at the storage position shown in fig. 1 and 4, and when the link mechanism 15 in the contracted state is extended toward the front, the leg/foot support portion 38 moves to the use area (the area further forward than the storage position). When the link mechanism 15 is maximally extended forward, the leg/foot support portion 38 is located at the front end position (front end position of the use area) shown in fig. 2 and 5.
Both end portions of the drive device supporting member 42 extending in the left-right direction are fixed to the rear end portions of the left and right fixing portions 14A, 14B, and the drive device 45 is supported by the drive device supporting member 42.
The driving device 45 includes, as large components: a main shaft 46, a motor 49 (locking unit), and an advancing and retreating member 54.
A rear end portion of a linearly extending main shaft 46 is rotatably attached to a bracket fixed to a central portion of a front surface of the drive device support member 42 via a rotation connecting pin 47 extending in the left-right direction. A thread groove (not shown) is formed on the outer peripheral surface of the main shaft 46.
A motor 49 is fixed to the main shaft 46. The motor 49 includes: a housing 50, and a rotation driving unit provided inside the housing 50. A cylindrical projection 51 projects from the front portion of the housing 50, and the motor 49 includes a motor through-hole 52 that penetrates the entire housing 50 (including the cylindrical projection 51) in the front-rear direction. The main shaft 46 penetrates a motor through hole 52 of the motor 49, and the thread groove of the main shaft 46 meshes with a worm wheel (not shown) which is an output part of the rotation driving part inside the motor 49.
An advancing-retreating member 54 extending in the left-right direction is fixed to the cylindrical projection 51 of the motor 49. A fixing hole 55 is formed in the center of the advancing-retreating member 54. The fixing hole 55 of the advancing-retreating member 54 is fitted to the cylindrical protrusion 51 from the front, and the fixing hole 55 and the cylindrical protrusion 51 are fixed to each other. Further, the pair of attachment pieces 56 formed by bending both left and right end portions of the advancing-retreating member 54 are formed with attachment holes 57. The left and right attachment pieces 56 of the advancing-retreating member 54 face the inner surfaces of the left and right side walls of the first base end link 17, and the left and right attachment pieces 56 are rotatably attached to the left and right side walls of the first base end link 17 via the pivot connecting pins 59 extending in the left and right direction penetrating the left and right attachment holes 57.
In the above-described configuration, the coupling shaft 16, the first base end link 17, the integral pivotal link 31, the interlocking link 33, the main shaft 46, the motor 49, the advancing/retreating member 54, and the pivotal connecting pin 59 are components of the restricting unit.
When an operation switch (not shown) provided in the vehicle seat 10 is in the OFF position, electric power generated by a power supply (not shown) provided in the vehicle is not supplied to the electric motor 49, and therefore the electric motor 49 does not operate.
When the operation switch is operated from the OFF position to the normal rotation operation position, the electric power generated by the power supply is supplied to the motor 49, and the motor 49 performs a normal rotation operation (the motor 49 is in the unlocked state). Then, the link mechanism 15 is deformed in the extending direction, and the leg support portion 38 moves toward the front end position side. When the operation switch is operated to the reverse operation position, the motor 49 performs a reverse operation (the motor 49 is in an unlocked state). Then, the link mechanism 15 is deformed in the contracting direction, and the leg support portion 38 moves toward the storage position.
Since the motor 49 is restricted from rotating about the main shaft 46 by the advancing-retreating member 54 (and the first base end link 17), the motor 49 slides forward relative to each other along the main shaft 46 when the motor 49 is operated in the normal rotation direction. Then, the forward moving force of the motor 49 is transmitted to the first base end link 17 via the advancing-retreating member 54 and the pivot connecting pin 59, and the link mechanism 15 performs the unfolding operation because the first base end link 17 rotates clockwise in fig. 1 and 2 about the coupling shaft 16. Further, when the motor 49 is operated in reverse, the motor 49 slides relatively backward along the main shaft 46, and therefore, the backward moving force of the motor 49 is transmitted to the first base end link 17 via the advancing/retreating member 54 and the pivot connecting pin 59. Then, the first base end link 17 rotates counterclockwise in fig. 1 and 2 about the coupling shaft 16, and the link mechanism 15 performs a retracting operation.
On the other hand, when the motor 49 is stopped (when the motor 49 is in the locked state) (when the operation switch is in the OFF position), a braking force (frictional resistance) is generated between the thread groove of the main shaft 46 and the worm wheel of the motor 49. This braking force is transmitted to the first base link 17 via the advancing and retreating member 54 and the pivot connecting pin 59, and further transmitted to the second base link 18 via the first base link 17, the connecting shaft 16, the integral pivot link 31, and the interlink 33. Therefore, when the motor 49 is stopped, the relative sliding of the motor 49 with respect to the main shaft 46 is restricted, and the extending and contracting operation of the link mechanism 15 is restricted. Therefore, regardless of the position of the leg/foot support portion 38, the motor 49 is stopped (the operation switch is set to the OFF position), and the leg/foot support portion 38 (and the link mechanism 15) can be held at that position.
In addition, the leg/foot support device 13 of the present embodiment exerts a significant effect when the leg/foot support portion 38 is located at the storage position.
That is, the first base end link 17 of the leg support device 13 is rotatably connected only to the fixing portions 14A, 14B and the leg support portion side rear link 21, while the right and left second base end links 18 are rotatably connected only to the fixing portions 14A, 14B, the intermediate link 24, and the interlocking link 33. In this way, since the first base end link 17 and the second base end link 18 are not mutually rotatably connected, the first base end link 17 and the second base end link 18 do not restrict the rotational movement of each other. Therefore, the degree of freedom in designing the turning locus of the first base end link 17 and the second base end link 18 is improved as compared with the case where the first base end link 17 and the second base end link 18 are rotatably connected. Therefore, the leg support device 13 (link mechanism 15) can be designed such that the amount of entry of the first base end link 17 and the second base end link 18 into the space S is reduced when the leg support portion 38 is at the storage position. Therefore, when the leg/foot support portion 38 is located at the storage position, the first base end link 17 or the second base end link 18 can be prevented from interfering with the slide rail motor or the lifting mechanism disposed in the space S.
Further, since the second base end link 18 is formed in a non-linear shape, the amount of entry of the second base end link 18 into the space S when the leg/foot support portion 38 is located at the storage position can be further reduced as compared to the case where the second base end link 18 is formed as a linear member.
Further, since the linear distance from the pivot connecting pin 20 (the pivot center hole 18a of the second base end link 18) to the pivot connecting pin 25 (hereinafter, "distance 1") and the linear distance from the pivot connecting pin 20 to the pivot connecting pin 35 (hereinafter, "distance 2") are made different from each other, the amount of relative movement of the leg/foot support portion 38 (link mechanism 15) with respect to the fixing portions 14A, 14B can be adjusted. That is, if the distance 1 is longer than the distance 2 as in the present embodiment, the amount of forward movement of the intermediate link 24 when the leg/foot support portion 38 moves from the storage position to the use area is increased, and therefore, the leg/foot support portion 38 can be moved further forward. On the other hand, when the distance 1 is shorter than the distance 2, the amount of forward movement of the leg/foot support portion 38 can be reduced.
The present invention has been described above based on the above embodiments, but the present invention is not limited to the embodiments and can be implemented by being variously modified.
For example, the link mechanism 15 may be a link mechanism having another structure by changing the number and arrangement of the links or the specific shape of each link. As an example, a first link connecting the first base end link 17 and the leg/foot support portion 38 may be formed by a plurality of link members, or a second link connecting the second base end link 18 and the leg/foot support portion 38 may be formed by one link member or three or more link members.
In addition, the drive device 45 may be omitted, and a manual lock unit that can switch between a locked state and an unlocked state may be attached to the link mechanism 15 (the integral pivotal link 31 is directly or indirectly connected to the lock unit), so that the leg support device 13 may be changed to a manual leg support device.
In the above embodiment, the adjacent link elements are connected to each other so as to be rotatable relative to each other by using the separate rotating connecting pin different from the link elements, but a convex portion may be integrally provided on one of the two adjacent link elements, and a concave portion or a through hole into which the convex portion is rotatably fitted may be formed on the other.
Further, the linear distance (distance 1) from the pivot connecting pin 20 (the pivot center hole 18a of the second base end link 18) to the pivot connecting pin 25 and the linear distance (distance 2) from the pivot connecting pin 20 to the pivot connecting pin 35 may be the same distance.
The second base link 18 may be configured as a straight member.
Claims (4)
1. A leg and foot support device for a vehicle seat, characterized in that,
the disclosed device is provided with:
a fixing portion fixed to a vehicle seat;
a leg support portion movable between a storage position close to the fixing portion and a use area far from the fixing portion;
a link mechanism connecting the fixed portion and the leg/foot support portion and moving the leg/foot support portion to the storage position and the use area by extending and contracting,
the link mechanism includes:
a first link group having a first link member supporting the leg/foot support portion and separated from the fixing portion, and a first base link member rotatably connected only to the first link member and the fixing portion;
a second link group having a second link member supporting the leg-and-foot supporting portion and separated from the fixing portion, and a second base end link member rotatably connected only with respect to the second link member and the fixing portion,
the first base end link rotates around a connecting shaft connected to the fixing portion,
the second base end link rotates around a pivot connecting pin connected to the fixed portion.
2. The leg-and-foot support device for a vehicle seat according to claim 1,
the second base end link includes:
a first connecting portion extending from a rotation center which is a rotation connecting portion with respect to the fixing portion and rotatably connected with respect to a restricting unit capable of restricting rotation of the second base end link;
a second connecting portion extending from the rotation center in a direction intersecting with respect to the first connecting portion and rotatably connected to the second linking member.
3. The leg-and-foot support device for a vehicle seat according to claim 1,
the second base end link includes:
a first connecting portion extending from a rotation center which is a rotation connecting portion with respect to the fixing portion and rotatably connected with respect to a restricting unit capable of restricting rotation of the second base end link;
a second connecting portion extending from the rotation center in a direction different from the first connecting portion and rotatably connected to the second linking member,
wherein,
the distance from the rotation connecting portion of the restricting unit and the first connecting portion to the rotation center and the distance from the rotation connecting portion of the second linking member and the second connecting portion to the rotation center are made different from each other.
4. The leg and foot support device for a vehicle seat according to claim 2 or 3,
the limiting unit includes:
a rotation restricting link rotatably connected with the first connecting portion;
a locking unit which is linked with the rotation limiting link and can switch an unlocking state allowing the rotation of the rotation limiting link and a locking state limiting the rotation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013058255A JP6084871B2 (en) | 2013-03-21 | 2013-03-21 | Ottoman device for vehicle seat |
| JP2013-058255 | 2013-03-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104057855A CN104057855A (en) | 2014-09-24 |
| CN104057855B true CN104057855B (en) | 2018-07-17 |
Family
ID=51545884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410079916.0A Expired - Fee Related CN104057855B (en) | 2013-03-21 | 2014-03-06 | Vehicular seats legs and feet support device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6084871B2 (en) |
| CN (1) | CN104057855B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018177162A (en) * | 2017-04-21 | 2018-11-15 | トヨタ紡織株式会社 | Ottoman apparatus for vehicular seat |
| CN113212278A (en) * | 2021-06-16 | 2021-08-06 | 湖南智行达科技有限公司 | DC locomotive lifting pedal |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5222497B2 (en) * | 2007-07-04 | 2013-06-26 | 日本発條株式会社 | Ottoman equipment |
| US7959221B2 (en) * | 2008-08-29 | 2011-06-14 | B/E Aerospace, Inc. | Integrated linkage/pinch guard system for leg rests |
| JP5447146B2 (en) * | 2010-04-27 | 2014-03-19 | トヨタ紡織株式会社 | Ottoman equipment |
| JP5494302B2 (en) * | 2010-07-07 | 2014-05-14 | トヨタ紡織株式会社 | Folding ottoman device for vehicle seat |
| JP5767001B2 (en) * | 2011-04-08 | 2015-08-19 | 備前発条株式会社 | Ottoman equipment |
-
2013
- 2013-03-21 JP JP2013058255A patent/JP6084871B2/en not_active Expired - Fee Related
-
2014
- 2014-03-06 CN CN201410079916.0A patent/CN104057855B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP6084871B2 (en) | 2017-02-22 |
| JP2014180994A (en) | 2014-09-29 |
| CN104057855A (en) | 2014-09-24 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
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Granted publication date: 20180717 Termination date: 20210306 |