JP2006006718A - Ottoman device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ottoman device capable of giving sufficient comfort to a user. <P>SOLUTION: In the ottoman device 10 provided with an X type arm member 10a which can be housed in a seat device 50 and unfolded to the front part of the seat device 50 and a footrest member 19 which is positioned at the front end of the X type arm member 10a and can be housed in linkage with the X type arm member 10a and unfolded in linkage with the X type arm member 10a, the X type arm member 10a is provided with a spring S1 for energizing the footrest member 19 upwards and a slit part 141a and a projection part 141b for preventing more than prescribed force of loads from being put on the spring S1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an ottoman device that can be stored in a seat and can be deployed in front of the seat.

  As a conventional ottoman device, the one described in Patent Document 1 is known. In the ottoman device, a pivot is fixed to the front surface of a seat cushion frame of a seat so as to be rotatable, and an arm member as a support frame is provided from the pivot so as to be able to expand or retract. A footrest member as a footrest member as a movable body is provided at the front end of the arm member so that the footrest member can be developed or stored. At that time, a support bar is interposed between the arm members located on both side surfaces of the footrest member, and the tip of the main link is rotatably connected to the center of the support bar. The main link extends to the lower surface side of the seat cushion frame, and the rear end of the main link is connected to a gear unit and a motor fixed to the inner lower surface of the seat cushion frame. That is, the rear end of the main link is connected to the motor via the gear unit. Thus, an external power source, an operation unit, and the like are connected to the motor.

In such an ottoman device, the motor is operated by an external power source and an operation unit. Then, the main link is pushed out while rotating through the gear unit, and the support rod is pushed out together with the main link. When the support bar is pushed out, both arm members are deployed forward, and the footrest member is also deployed forward together with both arm members. Further, when the main link is rotated in the reverse direction and the main link is pushed back while rotating, the support rod is pushed back and both the arm members are housed in their original positions. And a footrest member will be accommodated in the original position with both arm members.
JP-A-11-332688

  However, the ottoman device described above absorbs a load caused by the weight of the user's foot only by the elasticity of the footrest member. For this reason, it is difficult to say that the user has sufficient comfort.

  In this regard, even if a footrest member with improved elasticity is used, the load on the entire ottoman device cannot be sufficiently reduced due to the load due to the weight of the user's foot.

  The present invention has been made in view of the above-described conventional situation, and provides an ottoman device that can provide sufficient comfort to the user and can reduce the load on the entire device. This is a problem to be solved.

  The technical means taken in the present invention in order to solve the above-mentioned problem, as claimed in claim 1, is a support member that can be stored in a seat and can be deployed in front of the seat, An ottoman device that is located at the front end and can be stored in conjunction with the support member and can be deployed in conjunction with the support member, wherein the support member includes the footrest member. An urging member for urging upward and stopper means for preventing the urging member from being loaded with a predetermined force or more are provided.

  Further, the technical means taken in the present invention includes, as described in claim 2, the support member as an X-type arm member having an arm member that rotates around a rotation center member, and the footrest member. The urging member attached to the arm member connected to the lower part, and the arm member having the urging member is extendable, and the stopper means for restricting expansion and contraction beyond a predetermined length is provided. It is characterized by having.

  Furthermore, the technical means taken in the present invention includes, as described in claim 3, the support member as an X-type arm member having an arm member that rotates about a rotation center member, and the rotation center member. And an urging member that urges the arm member in one direction with respect to the rotation center member, and the arm member rotates more than a predetermined angle. It is characterized by comprising the stopper means for limiting the above.

  According to the first aspect of the present invention, the supporting member is provided with the urging member, and the footrest member is urged upward by the urging member. For this reason, when the user's foot is placed on the footrest member, the urging member increases the elasticity. For this reason, the load which arises from a user's leg | foot weight can be absorbed, and sufficient comfort can be given to a user. Further, the stopper means prevents a load exceeding a predetermined force from being applied to the urging member, so that it is difficult to apply a load to the support member via the urging member. For this reason, the load concerning the whole apparatus can be reduced.

  Therefore, in the ottoman device of the present invention, sufficient comfort can be given to the user, and the load on the entire device can be reduced.

  According to the invention described in claim 2, the X-type arm member includes the arm member connected to the lower portion of the footrest member, and the urging member is attached to the arm member. The arm member can be expanded and contracted, and the biasing member can be expanded and contracted together with the arm member. For this reason, the load applied to the footrest member is transmitted from the arm member to the urging member, and is reliably absorbed by the urging member. And if the load more than predetermined is applied, since expansion / contraction of an arm member will be restrict | limited by a stopper means, failure of an urging member etc. can be avoided.

  If the urging member urges the center lower side of the footrest member, the load applied to the footrest member can be absorbed in a balanced manner.

  Further, according to the invention described in claim 3, since the X-type arm member as the support member is provided with the biasing member that biases the arm member in one direction at the rotation center member, the same as described above. The effect of can be obtained. Moreover, since it is not necessary to expand and contract the arm member, the structure is simple. Then, if the arm member rotates more than a predetermined angle around the rotation center member, the rotation of the arm member is restricted by the stopper means, so that the failure of the urging member or the like can be avoided.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS The best mode for carrying out the present invention will be described below with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1, the ottoman device 10 according to the first embodiment is stored in a folded state in a lower portion on the front side of the seat cushion member 50 a in a seat device 50 as a seat including the seat cushion member 50 a.

  As shown in FIG. 2, the ottoman device 10 includes an X-type arm member 10 a that engages the rear end in a seat cushion member 50 a, and a footrest member that engages with the front end of the X-type arm member 10 a. The legrest member 19 (or footrest member) is provided.

  As shown in FIG. 3, the X-type arm member 10 a includes a first arm member 12, and a drive gear 12 a is formed at the rear end of the first arm member 12. The drive gear 12a is rotatably engaged by a drive motor M attached in the seat cushion member 50a, and the drive motor M is connected to an external switch (not shown) via a control device (not shown).

  A second arm member 14 is pivotally connected to the tip of the first arm member 12 of the X-type arm member 10 a, and the tip of the second arm member 12 is pivotable to the central lower surface of the legrest member 19. It is connected. As shown in FIG. 4, the second arm member 14 includes a cylindrical member 14a having an opening at the tip, and a sliding member 14b protruding from the opening and slidable within the cylindrical member 14a. The cylindrical member 14a is formed with a slit portion 141a, and the sliding member 14b is formed with a convex portion 141b that engages with the slit portion 141a. Thus, the slit means 141a and the convex part 141b constitute stopper means. A spring S1 as an urging member is interposed between the outer peripheral rear end side of the cylindrical member 14a and the outer peripheral front end side of the sliding member 14b, and the sliding member 14b is pushed out of the cylindrical member 14a by the spring S1. It is energized to be. As shown in FIG. 3, the tip of the sliding member 14 b is located on the side (central portion 19 a) of the lower surface of the center of the legrest member 19.

  Below the first arm member 12, a third arm member 16 that engages the rear end of the seat cushion member 50a is provided, and a fourth arm member 18 is rotatable at the tip of the third arm member 16. Is engaged. The center of the fourth arm member 18 and the center of the second arm member 12 are rotatably engaged by a rotation center member 12b, and the tip of the fourth arm member 18 is on the lower surface of the rear end of the leg rest member 19. It is rotatably connected to the side (rear end 19b). The legrest member 19 has a frame (not shown) on the lower surface and a cushion positioned on the upper surface of the frame.

  Thus, the first to fourth arm members 12 to 18 constitute the X-type arm member 10a, and the two X-type arm members 10a are located on both sides of the lower surface of the legrest member 19 from both side surfaces of the seat cushion member 50a. is doing.

  In the ottoman device 10 of the first embodiment configured as described above, the drive motor M shown in FIG. 1 is operated by operating an external switch (not shown). As shown in FIG. 2, the drive gear 12a is rotated by the operation of the drive motor M, and the first arm member 12 is rotated by the rotation of the drive gear 12a. As the first arm member 12 rotates, the second to fourth arm members 14 to 18 also rotate. In this way, the X-type arm member 10a is deployed forward of the seat device 50. At this time, the first to fourth arm members 12 to 18 can be rotated to a predetermined angle. And the legrest member 19 will also be expand | deployed with expansion | deployment of the 1st-4th arm members 12-18.

  In such a state, if the user sits on the seat device 50 and the user's foot is placed on the legrest member 19 of the ottoman device 10, the weight of the user's foot is placed on the legrest 19. The load which arises from will be applied. Although the load applied to the legrest 19 is absorbed to some extent by the cushion of the legrest member 19, most of the load is transmitted to the second arm member 14.

  In the second arm member 14 shown in FIG. 4A, the sliding member 14b slides in the cylindrical member 14a as shown in FIG. 4B. At that time, the load transmitted to the second arm member 14 is absorbed by the spring S1 interposed between the outer peripheral rear end side of the cylindrical member 14a and the outer peripheral front end side of the sliding member 14b. Then, if a load exceeding a predetermined value is applied, the convex portion 141b is locked to the rear end of the slit portion 141a, and the second arm member is restricted from being reduced to a predetermined length or more. For this reason, since it is possible to prevent a further load from being applied to the spring S1, failure of the spring S1 can be avoided. Moreover, since it becomes difficult to apply a load to the 2nd arm member 14 via the spring S1, the load concerning the whole apparatus can be reduced.

  Thus, the second arm member 14 of the X-type arm member 10a is provided with the spring S1, and the leg rest member 19 is biased upward by the spring S1. For this reason, when the user's foot is placed on the legrest member 19, the elasticity is increased by the spring S1. For this reason, the load which arises from a user's leg | foot weight can be absorbed, and sufficient comfort can be given to a user.

  Therefore, in the ottoman device 10 of the first embodiment, sufficient comfort can be given to the user, and the load on the entire device can be reduced.

(Embodiment 2)
In the ottoman device 10 of the second embodiment, as shown in FIG. 5, the first arm member 12 of the X-type arm member 10a is a rear first arm member 121a extending from the seat device 50a to the rotation center member 12b. And a first arm member 121b on the front side extending from the rotation center member 12b to the rear end of the second arm member 14. The first arm member 121a on the rear side and the first arm member 121b on the front side can be rotated with each other by the rotation center member 12b.

  The center of the fourth arm member 18 intersects with the front end of the first arm member 121a on the rear side and the rear end of the first arm member 121b on the front side, and the fourth arm member 18 is formed by the rotation center member 12b. The rear first arm member 121a and the front first arm member 121b are rotatably engaged.

  The rotation center member 12 is provided with a spiral spring S2 as an urging member. At this time, one end of the spiral spring S2 is locked to the rotation center member 12b of the first arm member 12, and the other end is locked to a locking pin 12c protruding from the rear end of the first arm member 12 on the front side. It is locked. Thus, the spiral spring S2 urges the front first arm member 121b upward with respect to the rear first arm member 121a.

  A key-shaped convex part 122b (stopper means) as stopper means protrudes upward from the first arm part 121b on the front side, and when the first arm member 121b and the fourth arm member 18 on the front side become narrower than a predetermined angle. The convex portion 122 b is engaged with the fourth arm member 18. Thus, the first arm portion 121b on the front side is restricted from rotating upward by a predetermined angle or more. Other configurations are the same as those of the first embodiment.

  In the ottoman device 10 of the second embodiment configured as described above, if the user's foot is placed on the legrest member 19 of the ottoman device 10, the weight of the user's foot is placed on the legrest 19. The resulting load will be applied. Although the load applied to the legrest 19 is absorbed to some extent by the cushion of the legrest member 19, most of the load is transferred to the front first arm member 121 a and the rear first arm member via the second arm member 14. It will be transmitted to 121b. Thus, the tip of the first arm member 121a on the front side is biased upward by the spiral spring S2, and the legrest member 19 is biased upward via the second arm member 14. For this reason, when a user's foot | rest is mounted on the legrest member 19, elasticity will increase with the spiral spring S2. For this reason, sufficient comfort can be given to the user.

  Further, when a load exceeding a predetermined value is applied, the convex portion 122b is locked to the fourth arm member 18, and the front first arm portion 121b is not rotated upward by a predetermined angle or more. For this reason, since it is possible to prevent a further load from being applied to the spiral spring S2, a failure of the spiral spring S2 can be avoided. Moreover, since it becomes difficult to apply a load to the first arm member 121b on the rear side via the spiral spring S2, the load applied to the entire apparatus can be reduced.

  Therefore, even the ottoman device 10 of the second embodiment can provide sufficient comfort to the user, and the load on the entire device can be reduced. Other functions and effects are the same as those of the first embodiment.

1 is an overall side view of a sheet apparatus according to Embodiment 1. FIG. 1 is an overall side view of a sheet apparatus according to Embodiment 1. FIG. FIG. 3 is an enlarged side view of the ottoman device according to the first embodiment. FIG. 4 is a partially enlarged side view of the ottoman device according to the first embodiment. It is an enlarged side view of the ottoman device according to the second embodiment.

Explanation of symbols

50 ... Seat (seat device)
10a, 12, 14, 16, 18 ... support member (10a ... X-type arm member, 12 ... first arm member, 14 ... second arm member, 16 ... third arm member, 18 ... fourth arm member, 121a ... First arm member on the front side, 121b... First arm member on the rear side)
19 ... Foot rest member (foot rest member)
141a, 141b, 122b ... stopper means (141a ... slit part, 141b ... convex part, 122b ... convex part)
10 ... Ottoman device S1, S2 ... Biasing member (S1 ... Spring, S2 ... Spiral spring)
12b ... Rotation center member

Claims (3)

A support member that can be stored in a seat and that can be deployed in front of the seat; a support member that is located at the front end of the support member, can be stored in conjunction with the support member, and can be deployed in conjunction with the support member In the ottoman device provided with a footrest member,
The support member includes an urging member that urges the footrest member upward, and stopper means that prevents the urging member from being loaded with a predetermined force or more. apparatus.   The support member as an X-type arm member having an arm member that rotates around a rotation center portion, and the biasing member attached to the arm member connected to a lower portion of the footrest member, the biasing The ottoman device according to claim 1, wherein the arm member having a member is extendable and includes the stopper means for restricting expansion and contraction beyond a predetermined length.   The support member as an X-type arm member having an arm member that rotates about a rotation center member, and is attached between the rotation center member and the arm member, and the arm with respect to the rotation center member 2. The ottoman according to claim 1, further comprising: the urging member that urges the member in one direction, and the arm member includes the stopper unit that restricts the rotation of the arm member beyond a predetermined angle. apparatus.

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