JP5343710B2 - Ottoman equipment - Google Patents

Description

  The present invention relates to an ottoman device that is displaceable between a stowed posture folded in a standing state at a front portion of a seat cushion and a use posture in which an occupant's legs can be placed.

  As this type of ottoman device, there are Patent Documents 1 to 3. The structure and movement of the ottoman main body in Patent Document 1 are the same as those of a conventional general ottoman body, and the one-component ottoman main body is folded along the front surface of the seat cushion and continuously from the seat cushion. And swing between the extended use posture. In Patent Document 2, the ottoman main body can be slid to the vehicle front side (in a direction away from the seat cushion) in the use posture so that the occupant's legs can be supported at the optimum position. In patent document 3, it has an ottoman main body (1st ottoman) and an auxiliary unit (2nd ottoman) which can be advanced / retracted from the front-end | tip of this 1st ottoman. The first ottoman swings between a storage posture folded along the front surface of the seat cushion and a use posture continuously extending from the seat cushion as in the conventional case. The second ottoman can be extended further forward from the front end of the first ottoman in the usage posture of the first ottoman.

JP 2006-239291 A JP 2006-239269 A JP-A-11-276296

  In Patent Document 1 in which the ottoman main body made of a single member simply swings between the storage posture and the use posture, the length of the ottoman main body is limited due to the convenience of the storage posture. The length is not secured sufficiently. Therefore, passenger comfort is limited. Therefore, in Patent Document 2, the ottoman body is slidable and the occupant's legs are supported at the optimum position to improve comfort. However, when the ottoman body is slid, a large space is generated between the seat cushion and the ottoman body. This has a problem that the occupant's legs cannot be supported in the space portion.

  On the other hand, in patent document 3, in addition to the 1st ottoman (ottoman main body), the 2nd ottoman (auxiliary unit) which can be moved forwards and backwards is provided, and the comfort of a passenger | crew is improved. However, even when the second ottoman is extended from the first ottoman, there is still a space between the two ottomans. In addition, both the first ottoman swing mechanism and the second ottoman advance / retreat mechanism are required, and the structure is inevitable. Further, since the second ottoman only extends linearly from the tip of the first ottoman, there is a problem in the tolerance of the physique difference of the occupant. That is, if the occupant's height, body shape, etc., especially the length of the leg, the position of the knee, the angle of bending of the leg, etc. naturally differ, but the second ottoman extends linearly from the tip of the first ottoman. Alone, there is concern about whether the physique difference can be covered accurately.

  Further, in Patent Document 2 and Patent Document 3, a two-step operation is required in which the ottoman body or the first ottoman is displaced to a use posture and then adjusted by a slide operation. In this case, the second-stage slide operation is complicated for the occupant, and the slide adjustment function is not always used, and there is a problem in terms of effective use of the function.

  SUMMARY OF THE INVENTION The present invention solves the above-described problems, and an object thereof is to provide an ottoman device having a simple structure and having a large mounting surface that is continuous in a use posture.

  The present invention relates to an ottoman device that is displaceable between a stowed posture folded in a standing state at a front portion of a seat cushion and a use posture in which an occupant's legs can be placed. A base member that can swing in the vehicle front-rear direction around the lower end is connected to the front portion of the seat cushion. Two ottomans, a first ottoman and a second ottoman, are connected to the upper end of the base member so as to be swingable in the vehicle longitudinal direction. In the storage posture, the base member is stored upright in the front portion of the seat cushion. At the same time, the first ottoman is folded and housed on the front side of the base member in the upright state. On the other hand, the second ottoman is folded and housed between the base member and the seat cushion on the rear surface side of the standing base member. Then, from such a storage posture, the base member tilts toward the vehicle front side, and the first ottoman swings toward the vehicle front side, while the second ottoman swings toward the vehicle rear side. Thus, the use posture is obtained. That is, it is noted that the first ottoman moves substantially in the same manner as in the prior art, but includes a second ottoman that swings to the opposite side.

  When the ottoman device is in a use posture, it is preferable to design the second ottoman so that the tip of the second ottoman is in contact with or close to the front end of the seat cushion.

  A link mechanism may be provided between the first ottoman and the second ottoman so that the first ottoman and the second ottoman swing simultaneously. Specifically, the link mechanism includes a first link connected to the first ottoman, a second link connected to the second ottoman, the first link and the second link. And an intermediate link connecting the two. In this case, the swing limit angle of the second ottoman relative to the base member is designed to be smaller than the swing limit angle of the first ottoman relative to the base member due to the length relationship between the links. It is preferable. If the swing limit angles of the first and second ottomans with respect to the base member are different from each other, when the ottoman device is in the use posture, the mounting surface of the leg composed of the first ottoman and the second ottoman is flat. Instead, a bent mounting surface is formed.

  The present invention also includes a second ottoman that swings in the opposite direction in addition to the first ottoman that moves in substantially the same manner as the prior art. As a result, the length of the first ottoman is made equal to that of the prior art, and the length of the second ottoman is added thereto, so that the leg placement surface can be enlarged. Since the said 1st and 2nd ottoman is each connected with the upper end part of a base member, the 1st ottoman and the 2nd ottoman are parallel in the use attitude | position. Thereby, the mounting surface of the continuous leg can be formed. Further, since the second ottoman swings in the vehicle rear side, that is, in a direction approaching the seat cushion, a large space (gap) is not generated between the second ottoman and the seat cushion in the use posture.

  In the present invention, since a base member that can swing in the vehicle front-rear direction is provided at the front portion of the seat cushion, the first ottoman and the second ottoman are only swingably connected to the base member. The structure is simple. Moreover, since the 2nd ottoman provided for expansion of the mounting surface of a leg (expansion of ottoman length) can also rock | fluctuate, a passenger | crew's physique difference can be accept | permitted effectively. Furthermore, since the first and second ottomans swing to the use posture as the base member tilts, the occupant is sufficient with a one-touch operation. That is, unlike the prior art, a two-stage operation is not required in which the slide operation is performed after the swing operation to the use posture. Therefore, usability is also high.

  If the front end of the second ottoman is in contact with or close to the front end of the seat cushion in the use posture, the seating surface of the leg is reliably continuous with the seat cushion, so that the occupant can more comfortably place the leg. be able to.

  If the first ottoman and the second ottoman are configured to swing via a link mechanism provided between them, the swing operation can be efficiently performed with a simple configuration. In addition, if the swing limit angle of the second ottoman relative to the base member is smaller than the swing limit angle of the first ottoman relative to the base member, a smooth curved surface shape is applied from the seat cushion to the first ottoman in the use posture. The mounting surface can be formed. As a result, the comfort of the occupant is improved and the physique difference of the occupant can be covered more efficiently.

It is a side view of a sheet. It is a side view of the ottoman device in a stowed position. It is a side view of the ottoman device in a posture between a storage posture and a use posture. It is a side view of the ottoman device in a use posture. It is a block diagram of the coupling apparatus used with the modification of an ottoman apparatus.

  Hereinafter, representative examples of the ottoman device according to the present invention will be described with reference to the drawings as appropriate. However, the present invention is not limited thereto, and various modifications can be made without departing from the scope of the present invention. is there.

(Example)
The ottoman device of the present invention can be suitably applied to various seats including a vehicle seat. As shown in FIG. 1, the seat 1 includes a seat cushion 2 that serves as a seating part for the occupant, a seat back 3 that serves as a backrest, and a headrest 4 that indicates the head of the occupant. Reference numeral 5 denotes a side cover that covers the side surface of the seat cushion 2 and various devices below the seat cushion 2. And the ottoman apparatus 10 of this invention is provided in the front part of the seat cushion 2. FIG. The ottoman device 10 includes a base member 11 that can swing in the vehicle front-rear direction with respect to the seat cushion 2, and first and second ottomans 12 and 13 that are swingably connected to the base member 11. The ottoman device 10 is folded in a standing state at the front portion of the seat cushion 2, the storage position shown in FIG. 1, the storage posture shown in FIG. 2, the imaginary line in FIG. It can be displaced between postures.

  The base member 11 is a plate-like member and is connected to the front lower end portion of the side cover 5 via the shaft pin 15 at the lower end portion thereof. Thereby, the base member 11 can swing in the vehicle front-rear direction around the shaft pin 15. The base member 11 is bent at an intermediate portion so as to be along the front surface of the seat cushion 2 in the stored posture, and is wide from the bent portion to the upper end portion (swinging tip portion). As a result, the rigidity of the base member 11 is enhanced, and the upper end portion of the base member 11 has a width sufficient to connect both the first and second ottomans 12 and 13 as will be described later.

  The first ottoman 12 and the second ottoman 13 are coupled to the upper end of the base member 11 so as to be swingable in the vehicle front-rear direction via shaft pins 16 and 17, respectively. The shaft pin 16 that is the center of swinging of the first ottoman 12 is provided near the front end of the base member 11, and the first ottoman 12 can swing on the front side of the base member 11. . On the other hand, the shaft pin 17 serving as the swing center of the second ottoman 13 is provided near the rear end of the base member 11, and the second ottoman 13 can swing on the rear surface side of the base member 11. ing. The first and second ottomans 12 and 13 have substantially the same lateral width as the seat cushion 2, and the base member 11 has two left and right edge portions of the first and second ottomans 12 and 13. Is provided.

  A link mechanism is provided between the first ottoman 12 and the second ottoman 13. Specifically, the first link 20 connected to the first ottoman 12 so as to be swingable integrally with the shaft pin 16 as a center, and the second link ottoman 13 about the shaft pin 17 as a center. It has the 2nd link 21 connected so that movement was possible, and the intermediate link 22 which connects the 1st link 20 and the 2nd link 21. As shown in FIG. The first link 20 is longer than the second link 21, and the intermediate link 22 is longer than the first link 20. Between the first link 20 and the intermediate link 22, a spring 23 (torsion coil spring) that urges the links 20 and 22 in a direction to separate them is disposed. Thereby, both the 1st ottoman 12 and the 2nd ottoman 13 are always urged | biased in the direction (usage attitude | position direction) which is separated from the base member 11. FIG. One end of the spring 23 is locked to a protrusion 24 provided on the first link 20, and the other end of the spring 23 is locked to a protrusion 25 provided on the intermediate link 22.

  An operation lever 30 for releasing the lock of the ottoman device 10 is provided on the outer surface of the side cover 5 so as to be swingable in the vertical direction. A hook 31 for locking the base member 11 is provided on the inner surface of the side cover 5. Is provided so as to be swingable in the vertical direction. The operation lever 30 and the hook 31 are connected to each other by a cable 32 arranged on the inner surface side of the side cover 5. Reference numeral 33 denotes an engaging protrusion that engages with the hook 31. The engagement protrusion 33 is provided on the base member 11. The operation lever 30 is always urged downward by a tension spring 35, and the hook 31 is always urged downward by a tension spring 36. One end of each of the tension springs 35 and 36 is hooked to the side cover 5. The hook 31 has two claws. Specifically, it has a first claw 31 a formed integrally with the hook 31 in the middle of the longitudinal direction, and a second claw 31 b formed integrally with the tip of the hook 31. The second claw 31b is longer than the first claw 31a. Further, the distance between the first claw 31 a and the second claw 31 b is substantially the same as the diameter of the engagement protrusion 33.

  Next, an operation method of the ottoman device 10 will be described. The ottoman device 10 is basically in the stowed position as shown in FIG. In the storage posture, the engagement protrusion 33 is engaged with the rear surface side of the first claw 31 a of the hook 31, and the base member 11 extends along the front surface of the seat cushion 2 at the front surface portion of the seat cushion 2. Standing up. On the other hand, the first ottoman 12 is folded and stored on the front side of the base member 11 in the standing state. The second ottoman is folded and stored between the base member 11 and the seat cushion 2 on the rear surface side of the standing base member 11. The first and second ottomans 12 and 13 are always urged by a spring 23 in a direction away from the base member 11 (direction of use posture). However, since the second ottoman 13 is sandwiched between the base member 11 locked by the hook 31 and the seat cushion 2, together with the first ottoman 12 linked to the second ottoman 13, The spring 23 is held in the stowed position against the urging force of the spring 23.

  When the operating lever 30 is operated as shown in FIG. 3 in this retracted position, the cable 32 is pulled, the hook 31 swings upward, and the engagement between the first claw 31a and the engaging protrusion 33 is released. The As a result, the base member 11 is tilted forward of the vehicle by the weight of the ottoman device 10. At the same time, the first link 20 and the intermediate link 22 are opened by the spring 23, and the first ottoman 12 begins to swing integrally with the first link 20 while the first link 20 and the intermediate link 22 start to swing toward the vehicle front side. The second ottoman 13 begins to swing toward the vehicle rear side integrally with the two links 21.

  The base member 11 is further tilted toward the vehicle front side from the state of FIG. 3, and the engagement protrusion 33 is in contact with the second claw 31b longer than the first claw 31a, whereby the tilt limit of the base member 11 is regulated. The If the base member 11 does not tilt further toward the front side of the vehicle, the operation lever 30 may be released. As a result, the hook 31 swings downward by the urging force of the tension spring 36, and as shown in FIG. 4, the engaging projection 33 is held between the first claw 31a and the second claw 31b, and the base member 11 Is locked in the use posture. At the same time, the first ottoman 12 and the second ottoman 13 are also swung to the rocking limit position, so that the occupant's legs can be placed.

  Thus, in addition to the first ottoman 12 that swings in the same manner as in the prior art, the second ottoman 13 that swings toward the rear of the vehicle also has a leg mounting surface length. Further, in the usage posture of the ottoman device 10, the first ottoman 12 and the second ottoman 13, and the tip of the second ottoman 13 and the front end of the seat cushion 2 are in contact with or close to each other. As a result, a continuous leg placement surface is formed from the seat cushion 2 to the first ottoman 12. Further, the swing limit angle of the second ottoman 13 relative to the base member 11 is smaller than the swing limit angle of the first ottoman 12 relative to the base member 11. As a result, a curved leg placement surface is formed from the seat cushion 2 to the first ottoman 12, so that not only the comfort of the occupant is improved, but also the physique difference of the occupant can be efficiently covered. In particular, the first and second ottomans 12 and 13 are biased to the swing limit angle position in the use posture, but the swing to the storage posture side (downward) is not restricted. Accordingly, the first and second ottomans 12 and 13 can swing downward against the urging force of the spring 23 by receiving the load of the occupant's legs. Thereby, an occupant's physique difference can be accept | permitted more correctly.

  To return the ottoman device 10 from the use posture to the stowed posture, the operation lever 30 is operated again, and the ottoman device 10 is moved to the seat cushion 2 side in a state where the engagement between the first claw 31a and the engagement protrusion 33 is released. Push it back. Accordingly, the first and second ottomans 12 and 13 and the base member 11 are folded and stored by the movement opposite to the above. When the operation lever 30 is released when the ottoman device 10 is in the storage posture, the base member 11 is locked in the storage posture, and the first and second ottomans 12 and 13 are held in the storage posture.

(Modification)
In the above embodiment, the first and second ottomans 12 and 13 are in a freely rotating state. However, as shown in FIG. 5, the posture angle of the seat back 3 is set on the shaft pin 16 of the first ottoman 12. Similar to the reclining device to be adjusted, a joint device (lock device) 40 having an internal gear 41 and an external gear 42 may be provided so that the postures of the first and second ottomans 12 and 13 can be locked. . In this case, the coupling device 40 is provided with a release lever 43 that is pivotable about the shaft pin 16, and the operating force from the release lever 43 rotates integrally with the release lever 43 about the shaft pin 16. It is transmitted to the external gear 42 via the moving cam member 44. The release lever 43 is connected to the operation lever 30 via a cable 45 that is different from the cable 32 that connects the operation lever 30 and the hook 31. Therefore, when the operation lever 30 is operated, both the hook 31 and the release lever 43 are pulled. When the release lever 43 is pulled by the cable 45 and rotated, the cam member 44 also rotates. Then, the external gear 42 is pressed inward by the cam member 44, and the unlocked state is released in which the engagement between the internal gear 41 and the external gear 42 is released. In this way, the locked state of the joint device 40 is also released in conjunction with the forward movement of the base member 11, and the first and second ottomans 12 and 13 are deployed by the biasing force of the torsion spring 23. If the operation lever 30 is released when the ottoman device 10 is displaced to the use posture, the first and second ottomans 12 and 13 are locked in the use posture. When the ottoman device 10 is stored, the movement is the reverse of the above. Reference numeral 46 denotes an internal gear guide, and reference numeral 47 denotes an external gear guide. Reference numeral 48 denotes a torsion spring that constantly biases the cam member 44 in the locking direction. Therefore, the external gear 41 and the release lever 43 are also always urged in the locking direction via the cam member 44. Reference numeral 41a is a use posture locking internal tooth for locking in the use posture, and reference numeral 41b is a storage posture locking internal tooth for locking in the storage posture. That is, when the ottoman device 10 is in the use posture, the use posture locking inner teeth 41a and the external gear 42 are fitted, and when the ottoman device 10 is in the storage posture, the storage posture locking inner teeth 41b are engaged. The external gear 42 is fitted.

(Other variations)
In the above embodiment, the first and second ottomans 12 and 13 are swung by the urging force of the spring 23, but can be swung by driving means such as a motor instead of the spring 23. In this case, any one of the first ottoman 12, the second ottoman 13, the first link 20, the second link 21, and the intermediate link 22 may be operated by the driving means.

  Moreover, in the said Example, although the base member 11 becomes a structure inclined by the dead weight of the ottoman apparatus 10, a spring member is provided between the inner surface of the side cover 5 and the base member 11, and the base member 11 is a vehicle. It is also preferable to always urge so as to incline forward. It is also preferable to interlock the unlocking of the ottoman device 10 and the unlocking of the reclining mechanism that adjusts the reclining angle of the seat back 3.

  The tip of the second ottoman 13 and the front end of the seat cushion 2 do not necessarily have to be close to each other as long as a large space is not formed. Further, the swing limit angle of the first ottoman 12 and the second ottoman 13 may be the same. That is, a configuration in which a flat leg placement surface is formed in the use posture may be used. Even in this case, since the first and second ottomans 12 and 13 can swing toward the storage posture in the use posture, the physique difference of the occupant can be allowed.

2 Seat cushion 5 Side cover 10 Ottoman device 11 Base member 12 First ottoman 13 Second ottoman 20 First link 21 Second link 22 Intermediate link 23 Spring 30 Operation lever 31 Hook 31a First claw 31b Second Claw 32 cable 33 engagement protrusion

Claims (3)

An ottoman device that is displaceable between a stowed posture folded in a standing state on the front portion of the seat cushion and a use posture in which the occupant's legs can be placed,
A base member connected to the front portion of the seat cushion so as to be swingable in the vehicle front-rear direction around the lower end;
First and second ottomans swingably connected to the upper end of the base member;
In the stowed position, the first ottoman is folded and housed on the front side of the base member in an upright state, while the second ottoman is placed on the rear surface side of the base member with the base member and the seat cushion. Is folded and stored between
From the stowed position, the base member tilts toward the front side of the vehicle and the first ottoman swings toward the front side of the vehicle, while the second ottoman swings toward the rear side of the vehicle. Ottoman device, characterized in that   The ottoman device according to claim 1, wherein when the ottoman device is in a use posture, a tip of the second ottoman is in contact with or close to a front end of the seat cushion. A link mechanism is provided between the first ottoman and the second ottoman,
The link mechanism includes a first link connected to the first ottoman, a second link connected to the second ottoman, and an intermediate connecting the first link and the second link. Composed of links and
The ottoman device according to claim 1 or 2, wherein a swing limit angle of the second ottoman relative to the base member is smaller than a swing limit angle of the first ottoman relative to the base member.

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