JP2022011192A - Table unit - Google Patents

Abstract

To make a base part compact in a table unit including the base part attached to a vehicle interior part and a table body which is pivotally supported so as to be openable or closable relative to the base part.SOLUTION: A table unit includes: a base part attached to a vehicle interior part; a table body which is pivotally supported by a rotary shaft provided at the base part; a functional member which is pivotally supported by the rotary shaft so that the functional member can independently rotate relative to the table body; and a holding mechanism which is provided around the rotary shaft and can hold a rotation position of the functional member relative to the base part to at least a storage position and a usage position where an angle relative to the base part is larger than that in the storage position.SELECTED DRAWING: Figure 10

Description

The present invention relates to a table unit.

Patent Document 1 discloses a table unit including a base panel attached to the back surface of a seat back (an example of a vehicle interior portion), and a table body vertically supported by the base panel so as to be openable and closable. A cup holder is rotatably supported on the base panel of this table unit. Further, the base panel is formed with a recess for accommodating the cup holder, and when the cup holder is accommodated in this recess, the engaging protrusion provided on the cup holder is provided in the recess. It is designed to engage with and maintain the housed state of the cup holder.

Japanese Patent No. 6663318

In the table unit of Patent Document 1, a cup holder is pivotally supported on a base panel, and a mechanism for maintaining a housed state of the cup holder is provided in a recess for accommodating the cup holder. Therefore, the base panel needs to have a certain size.

In the market, it is desired to make the base panel (base part) compact from the viewpoint of the design of the table unit and the degree of freedom in design.

In consideration of the above facts, an object of the present invention is to make the base portion compact in a table unit including a base portion attached to the vehicle interior portion and a table body vertically supported by the base portion. do.

The table unit according to the first aspect of the present invention has a base portion attached to the vehicle interior portion, a table body pivotally supported by a rotation shaft provided on the base portion, and the rotation shaft independent of the table body. The functional member rotatably supported by the shaft and the rotation position of the functional member provided around the rotation axis with respect to the base portion are at least at a storage position and an angle with respect to the base portion from the storage position. It is equipped with a holding mechanism that can be held in a large usage position.

In the table unit of the first aspect, the table body and the functional member are independently and rotatably supported by a rotating shaft provided on the base portion. That is, the table body and the functional member share the same rotation axis. Therefore, in the table unit, for example, the base portion can be made more compact than the configuration in which the rotating shaft for the functional member is provided on the base portion separately from the rotating shaft for the table body.

Further, in the table unit of the first aspect, when the functional member is rotated from the storage position to the use position with respect to the base portion, the table body is held at the use position by the holding mechanism. Further, when the functional member is rotated from the used position to the stored position with respect to the base portion, the table body is held at the stored position by the holding mechanism. Here, since the holding mechanism is provided around the rotation axis in the table unit, the base portion can be made more compact than, for example, a configuration in which the holding mechanism is provided at a position away from the rotation axis in the base portion.

From the above, in the table unit of the first aspect, the degree of freedom of the table unit installation space in the vehicle interior portion can be increased by making the base portion compact. Further, in the table unit, since the same rotation axis is shared between the table body and the functional member, for example, as compared with the configuration in which the rotation axis for the functional member is provided separately from the rotation axis for the table body in the base portion, the base is used. The structure of the part can be simplified and the number of parts can be reduced.

The table unit of the second aspect of the present invention is the table unit of the first aspect, and the functional member is provided with a cylindrical bearing portion through which the rotating shaft penetrates.

In the table unit of the second aspect, since the shape of the bearing portion is tubular, for example, the bearing is compared with a configuration using a tubular (so-called C-shaped) bearing portion in which a part in the circumferential direction is divided. The portion is prevented from falling off the rotating shaft. In addition, the cylindrical shape increases the rigidity of the bearing portion, so that the durability of the functional member is improved.

The table unit according to the third aspect of the present invention is the table unit according to the second aspect, wherein the holding mechanism includes an engaging portion provided on a portion of the base portion facing the outer periphery of the bearing portion and the bearing portion. A first engaged portion that is provided on the outer periphery and engages with the engaging portion when the functional member is in the retracted position, and a first engaged portion that is provided on the outer periphery of the bearing portion and the functional member is in the used position. It has a second engaged portion that engages with the engaging portion when it is in.

In the table unit of the third aspect, the functional member is held in the retracted position by engaging the engaging portion of the base portion and the first engaged portion of the bearing portion. Further, the functional member is held at the used position by engaging the engaging portion with the second engaged portion of the bearing portion. Here, in the table unit, the rotational position of the functional member can be held by a simple structure in which the engaging portion of the base portion and the engaged portion of the bearing portion are engaged.

The table unit according to the fourth aspect of the present invention is the table unit according to the third aspect, wherein the first engaged portion and the second engaged portion are provided at both ends of the bearing portion in the tubular axial direction, respectively. The engaging portions are provided on the base portion at intervals in the axial direction of the rotating shaft.

In the table unit of the fourth aspect, the first engaged portion and the second engaged portion are provided at both ends of the bearing portion in the tubular axis direction, respectively, and these first engaged portions and second engaged portions are provided. Engaging portions are provided on the base portion at positions corresponding to the engaging portions at intervals in the axial direction of the rotating shaft. Here, in the table unit, since the first engaged portion and the second engaged portion are provided at both ends of the bearing portion in the tubular axis direction, for example, the first engaged portion and the second engaged portion. 2 Compared with the configuration in which the engaged portion is provided only in the central portion in the tubular axis direction of the bearing portion, the rotational operation of the functional member is stable. In addition, the durability of the holding mechanism is improved.

The table unit according to the fifth aspect of the present invention is the table unit according to the third or fourth aspect, in which the bearing portion is provided on a substantially annular support portion for supporting the rotating shaft and the outer periphery of the support portion. It has a first claw portion as the first engaged portion and a second claw portion as a second engaged portion provided on the outer periphery of the support portion, and the engaging portion is the base. It is a protruding portion that protrudes from the facing portion of the portion toward the outer periphery of the support portion, and the first claw portion is elastically deformable in the radial direction of the support portion.

In the table unit of the fifth aspect, the functional member is held in the retracted position by engaging the protruding portion, which is the engaging portion, with the first claw portion. Further, the functional member is held at the position of use by engaging the protruding portion with the second claw portion. Here, since the first claw portion can be elastically deformed in the radial direction of the support portion, when the functional member is rotationally moved from the storage position to the use position, the first claw portion is moved in the radial direction of the support portion by the protruding portion. It is pushed by and elastically deformed. When the protruding portion reaches the second claw portion due to the rotational movement of the functional member, the first claw portion elastically returns, and the protruding portion is held between the first claw portion and the second claw portion. As described above, the table unit has a simple configuration in which the first claw portion and the second claw portion are provided on the outer periphery of the support portion and the first claw portion can be elastically deformed in the radial direction of the support portion. The sex member can be held in the storage position and the use position.

The table unit according to the sixth aspect of the present invention is the table unit according to the fifth aspect, wherein the first claw portion is a plate-shaped spring material, both ends are connected to the support portion, and the intermediate portion is the support. The second claw portion is separated from the outer periphery of the portion, and the second claw portion is a plate-shaped spring material, one end of which is connected to the support portion and the other end of which is a free end and is separated from the outer periphery of the support portion. ..

In the table unit of the sixth aspect, since the first claw portion and the second claw portion are each made of a plate-shaped spring material, the functional member can be held in the storage position and the use position with a simple spring structure. .. Further, when a load in the rotational direction is applied to the functional member in a state where the protruding portion of the base portion is engaged with the second claw portion, that is, in a state where the functional member is in the used position, the second claw portion The other end, which is a free end, bends so as to approach the outer periphery of the support portion, and the protruding portion of the base portion gets over the outer surface of the second claw portion. As described above, in the above table unit, when the functional member is in the use position, even if a load in the rotational direction is applied to the functional member, the protruding portion can get over the second claw portion, so that the protruding portion or the second claw portion can be overcome. Damage to the nails can be suppressed.

The table unit according to the seventh aspect of the present invention is the table unit according to the fifth or sixth aspect, wherein the rotating shaft is made of metal, the bearing portion is made of resin, and the bearing portion is formed. The support portion, the first claw portion, and the second claw portion are integrally formed.

In the table unit of the seventh aspect, since the rotation shaft is made of metal, the durability can be improved. Further, in the above table unit, the bearing portion is made of resin, and the support portion, the first claw portion, and the second claw portion constituting the bearing portion are integrally formed. Therefore, for example, the first claw portion is relative to the support portion. The number of parts can be reduced as compared with the case where the claw portion and the second claw portion are separated. In addition, the bearing portion can be easily manufactured.

The table unit according to the eighth aspect of the present invention is the table unit according to the third or fourth aspect. An elastically deformable support portion arranged coaxially with the annular portion on the inner side in the radial direction and supporting the rotation axis, and a first concave portion as the first engaged portion provided on the outer periphery of the annular portion. It has a second recess as the second engaged portion provided on the outer periphery of the annular portion, and the engaging portion is directed from the facing portion of the base portion toward the outer periphery of the annular portion. It is a protruding portion, and the opening of the support portion is located radially inside the portion between the first recess and the second recess in the annular portion.

In the table unit of the eighth aspect, the functional member is held in the retracted position by engaging the protruding portion, which is the engaging portion, with the first concave portion. Further, the functional member is held at the used position by engaging the protruding portion with the second concave portion. Here, since the support portion is partially divided in the circumferential direction and can be elastically deformed, when the functional member is rotationally moved from the storage position to the use position, the protrusion portion causes the first recess and the second recess in the annular portion. The portion between the recess and the recess is pushed, and the position of the annular portion is displaced with respect to the rotation axis. At this time, since the opening of the support portion is located radially inside the portion between the first recess and the second recess in the annular portion, the opening of the support portion is opened by the pressing force from the protruding portion. When pressed against the rotating shaft, the opening opens (elastically deforms to open), and the position of the annular portion shifts with respect to the rotating shaft. Then, when the protruding portion fits into the second recess due to the rotational movement of the functional member, the rotation shaft moves inside the support portion, and the protruding portion is held by the second recess. As described above, in the table unit, the first recess and the second recess are provided on the outer periphery of the annular portion, and the opening of the support portion of the elastically deformable bearing portion is provided between the first recess and the second recess. The functional member can be held in the retracted position and the used position with a simple configuration in which the portion is positioned radially inside.

In the table unit of the ninth aspect of the present invention, in the table unit of the eighth aspect, elastically deformable plate-shaped portions extending toward the inner surface of the annular portion are provided at both ends of the opening of the support portion. The tip of the plate-shaped portion is connected to a portion of the annular portion between the first recess and the second recess.

In the table unit of the ninth aspect, elastically deformable plate-shaped portions extending toward the inner surface of the annular portion are provided at both ends of the opening of the support portion, and the tip of the plate-shaped portion is used as the first recess in the annular portion. It is connected to the portion between the second recess. Therefore, in the table unit, even if the rotation shaft comes out of the opening of the support portion, the rotation shaft can be returned to the inside of the support portion by being guided by the pair of plate-shaped portions.

The table unit according to the tenth aspect of the present invention is the table unit according to the eighth aspect or the ninth aspect, wherein the outer peripheral portion of the annular portion has a third concave portion on the opposite side of the first concave portion with the second concave portion interposed therebetween. It is provided.

In the table unit of the tenth aspect, when a load in the rotational direction is applied to the functional member in a state where the protruding portion of the base portion is engaged with the second concave portion, that is, in a state where the functional member is in the used position, The support portion is elastically deformed, and the position of the annular portion is displaced with respect to the rotation axis. Then, the protruding portion of the base portion escapes from the second concave portion, moves on the outer peripheral surface of the annular portion, and engages with the third concave portion. As described above, in the above table unit, when the functional member is in the used position, even if a load in the rotational direction is applied to the functional member and the protruding portion exits the second recess, the protruding portion is engaged with the third recess. By combining them, it is possible to prevent the functional member from turning too much.

The table unit according to the eleventh aspect of the present invention is the table unit according to any one of the first to tenth aspects, in which the base portion is attached to the back surface of the seat back as the vehicle interior portion.

In the table unit of the eleventh aspect, since the base portion is attached to the back surface of the seat back, the degree of freedom of the table unit installation space on the back surface of the seat back can be increased.

INDUSTRIAL APPLICABILITY According to the present invention, the base portion can be made compact in a table unit including a base portion attached to the vehicle interior portion and a table body vertically supported by the base portion.

It is a perspective view of the table unit which concerns on 1st Embodiment of this invention. It is a top view of the table unit of FIG. It is a side view of the table unit of FIG. It is a side sectional view which shows the state which the table body is in the storage position in the table unit of FIG. It is a side sectional view (cross-sectional view along the 5X-5X line of FIG. 2) which shows the state which the table body is in the use position in the table unit of FIG. FIG. 3 is a side sectional view showing a state in which the table body is in a forced opening position in the table unit of FIG. 1. FIG. 3 is a side sectional view of the table unit and the seat back showing a state in which the table unit of FIG. 1 is attached to the back surface of the seat back. It is an enlarged side sectional view around the bearing part of the cup holder which shows the state which the cup holder is in the retracted position in the table unit of FIG. It is an enlarged side sectional view around the bearing part of the cup holder which shows the state which the cup holder is rotationally moved from the storage position to the use position in the table unit of FIG. It is an enlarged side sectional view around the bearing part of the cup holder which shows the state which the cup holder is in the retracted position in the table unit of FIG. 1 (the sectional view along the 10X-10X line of FIG. 2). It is an enlarged side sectional view around the bearing part of the cup holder which shows the state which the cup holder is rotationally moved from the use position to the forced opening position in the table unit of FIG. It is an enlarged side sectional view around the bearing part of the cup holder which shows the state which the cup holder is in the forced opening position in the table unit of FIG. It is a top view which shows around the bearing part of the cup holder used in the table unit of FIG. It is a side view which shows around the bearing part of the cup holder used in the table unit of FIG. It is an enlarged side sectional view around the bearing part of the cup holder which shows the state which the cup holder is in the retracted position in the table unit of 2nd Embodiment. It is an enlarged side sectional view around the bearing part of the cup holder which shows the state which the cup holder is rotationally moved from the storage position to the use position in the table unit of 2nd Embodiment. It is an enlarged side sectional view around the bearing part of the cup holder which shows the state which the cup holder is in the retracted position in the table unit of 2nd Embodiment. It is an enlarged side sectional view around the bearing part of the cup holder which shows the state which the cup holder is rotationally moved from the use position to the forced opening position in the table unit of 2nd Embodiment. It is an enlarged side sectional view around the bearing part of the cup holder which shows the state which the cup holder is in the forced opening position in the table unit of 2nd Embodiment. It is a top view which shows around the bearing part of the cup holder used in the table unit of 2nd Embodiment. It is a side view which shows around the bearing part of the cup holder used in the table unit of 2nd Embodiment.

[First Embodiment]
The table unit according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 14.

As shown in FIGS. 2 and 7, the table unit 20 of the present embodiment is attached to the vehicle interior portion. Specifically, the table unit 20 is attached to a portion (vehicle interior portion) constituting the interior of an automobile as a vehicle, and in the present embodiment, the back surface of the seat back 102 of the automobile seat 100 is attached. It is attached to 102A. In the present embodiment, the table unit 20 is attached to the seat 100 for an automobile, but the present invention is not limited to this configuration, and a seat having a seat back (for example, an aircraft seat, a train seat, etc.) is used. If so, the table unit 20 of the present embodiment can be attached. The arrow W in FIG. 2 indicates the width direction of the seat 100 (hereinafter, appropriately referred to as “seat width direction”). Further, the arrow U in FIG. 7 indicates the upper side of the seat 100 (hereinafter, appropriately referred to as “upper seat”), and the arrow R indicates the rear side of the seat 100 (hereinafter, appropriately referred to as “rear seat”). Is shown.

As shown in FIGS. 1 to 3, the table unit 20 of the present embodiment includes a base portion 30 as an example of the base portion and a table main body 40. The arrows W and U in FIGS. 1 to 12 indicate the directions in which the table unit 20 is attached to the seat 100.

(Base part)
As shown in FIG. 7, the base portion 30 is a member attached to the back surface 102A of the seat back 102. The base portion 30 is made of a resin material (for example, plastic). Further, the base portion 30 has a substantially long rectangular shape having a long sheet width direction in a plan view. The base portion 30 is fastened and fixed to the mounting portion 102B (see FIG. 7) provided on the back surface of the seat back 102 by a fixing member such as a screw material or a fastener. Further, in a state where the base portion 30 is attached to the mounting portion 102B, the mounting portion 102B is covered with the base portion 30.

Further, a rotation shaft 32 extending along the seat width direction is provided at the lower portion of the base portion 30. Specifically, both ends in the axial direction of the rotating shaft 32 are supported by bearing portions 33 provided on both sides of the base portion 30 in the width direction (synonymous with the axial direction of the rotating shaft 32). The rotating shaft 32 is made of metal.

(Table body)
As shown in FIGS. 4 to 6, the table body 40 is pivotally supported by a rotation shaft 32 provided on the base portion 30. Specifically, the table body 40 is pivotally supported by the rotation shaft 32 of the base portion 30 and can be opened and closed with respect to the base portion 30. The table body 40 is made of a resin material (for example, plastic). Further, as shown in FIG. 2, the table main body 40 has a substantially long rectangular shape having a long sheet width direction in a plan view. The length L2 of the table body 40 is longer than the length L1 of the base portion 30. In other words, the length L1 of the base portion 30 is shorter than the length L2 of the table body 40. The length L2 referred to here is a length along a direction orthogonal to the seat width direction (hereinafter, appropriately referred to as “horizontal direction”) of the table body 40 in a plan view (hereinafter, appropriately “vertical direction”). By the way, it refers to the length from the center 32CL of the rotating shaft 32 to the tip of the table body 40. Further, the length L1 is a length in a direction (longitudinal direction) orthogonal to the seat width direction (horizontal direction) of the base portion 30 in a plan view, and is a length from the center 32CL of the rotation axis 32 to the tip end (upper end) of the base portion 30. ) Refers to the length.

Further, the table unit 20 of the present embodiment further includes a hinge mechanism 50 as shown in FIGS. 4 to 6. The hinge mechanism 50 is configured so that the opening / closing position of the table body 40 with respect to the base portion 30 can be adjusted in multiple stages. Further, in the hinge mechanism 50 of the present embodiment, the opening / closing position of the table body 40 with respect to the base portion 30 is at least a retracted position (see FIG. 4), a used position (see FIG. 5), and a forced opening position (see FIG. 6). It is said that it can be held in.

FIG. 4 shows a state in which the table body 40 is in the storage position with respect to the base portion 30. When the table body 40 is in the retracted position, the base portion 30 is covered by the table body 40 when viewed from the rear of the seat. Further, the table body 40 of the present embodiment has a shape seen from the seat width direction along the back surface 102A of the seat back 102. Specifically, when viewed from the seat width direction, the shape of the outer surface 40C of the table body 40 follows the shape of the corresponding portion of the back surface 102A of the seat back 102 at the storage position. Therefore, when the table main body 40 is in the storage position, the table main body 40 is along the back surface 102A of the seat back 102 when viewed from the seat width direction. In the present embodiment, the surface of the table body 40 opposite to the outer surface 40C is the mounting surface 40D for placing an object on the table body 40. The mounting surface 40D and the outer surface 40C are flat surfaces, respectively.

Further, in the present embodiment, as shown in FIG. 4, when the table body 40 is in the storage position, the tip portion 40A of the table body 40 is located above the seat as compared with the case where the table body is in the use position.

FIG. 5 shows a state in which the table body 40 is in the used position with respect to the base portion 30. The position where the table body 40 is used is a position where the opening / closing angle θ with respect to the base portion 30 is larger than the storage position. The opening / closing angle θ referred to here refers to an angle between the axis line (including the extension line of the axis line) 56AL of the coil spring 56, which will be described later, and the outer surface 40C of the table body 40. When the table body 40 is in the used position, the table body 40 is substantially parallel to the horizontal direction when viewed from the seat width direction. Specifically, when the table body 40 is in the used position, the table body 40 is substantially parallel to the horizontal direction when viewed from the seat width direction in a normal standing state in which the seat back 102 of the seat 100 is slightly tilted backward. become. When the seat back 102 is tilted by the reclining mechanism, the horizontal state of the table body 40 also changes according to the reclining angle.

FIG. 6 shows a state in which the table body 40 is in a forced opening position with respect to the base portion 30. The forced opening position of the table body 40 is a position where the opening / closing angle θ with respect to the base portion 30 is larger than the used position. When the table body 40 is in the forced opening position, the tip portion 40A of the table body 40 faces diagonally downward when viewed from the seat width direction.

As shown in FIGS. 4 to 6, the hinge mechanism 50 includes a first cam body 52, a second cam body 54, and a coil spring 56 as an example of the urging member.

As shown in FIGS. 4 to 6, the first cam body 52 is provided on the base end portion 40B side of the table main body 40 around a rotation shaft 32 that pivotally supports the base portion 30 and the table main body 40. There is.

A cam surface 52A in contact with the cam surface 54A of the second cam body 54 is formed on the outer peripheral surface of the first cam body 52. The cam surface 52A is provided with a first engaging portion 58, a second engaging portion 59, and a third engaging portion 60, respectively, along the outer periphery thereof. The first engaging portion 58 and the third engaging portion 60 are portions where the cam surface 52A is projected (specifically, a portion where the cam surface 52A is projected), and the second engaging portion 59 is a portion. It is a portion (specifically, a portion recessed in a valley shape) in which the cam surface 52A is recessed between the first engaging portion 58 and the third engaging portion 60.

The second cam body 54 is provided on the base portion 30 as shown in FIGS. 4 to 6. Specifically, the base portion 30 is provided with a cam case 34 for accommodating the second cam body 54, and the second cam body 54 is configured to be slidable in the cam case 34. The cavity 35 accommodating the second cam body 54 of the cam case 34 extends in a direction orthogonal to the rotation shaft 32, and a part of the second cam body 54 protrudes from the opening on the rotation shaft 32 side. A cam surface 54A is formed at the tip of the protruding portion. The shape of the hollow portion 35 of the cam case 34 is such that the second cam body 54 can slide and move in the hollow portion 35. The second cam body 54 is urged by the coil spring 56 in a direction orthogonal to the rotation axis 32 and pressed against the first cam body 52. Specifically, the second cam body 54 is urged and the cam surface 54A is pressed against the cam surface 52A of the first cam body 52.

Further, the cam surface 52A of the second cam body 54 is provided with an engaged portion 62 capable of engaging with the first engaging portions 58, 59, 60 of the first cam body 52. The engaged portion 62 is a portion (specifically, a portion protruding in a mountain shape) on which the cam surface 54A is projected, and is formed on the seat front side of the cam surface 54A. On the other hand, the remaining portion of the cam surface 54A is a flat surface 54B.

The coil spring 56 is provided on the base portion 30 as shown in FIGS. 4 to 6. Specifically, the coil spring 56 is housed in the hollow portion 35 of the cam case 34 of the base portion 30, and the second cam body 54 is urged toward the rotating shaft 32 in a direction orthogonal to the rotating shaft 32. ing. In this embodiment, a plurality of (three) coil springs 56 are housed in the cam case 34 side by side in the seat width direction. By arranging the plurality of coil springs 56 in the seat width direction in this way, for example, one long coil while shortening the vertical dimension of the base portion 30 as compared with the configuration using one long coil spring. A force equal to or higher than that of a spring can be obtained.

When the table body 40 is in the retracted position, the first engaged portion 58 and the engaged portion 62 are engaged as shown in FIG. Specifically, the curved top surface 62A of the engaged portion 62, which is a mountain-shaped protruding portion, abuts on the curved top surface 58A of the first engaging portion 58, which is a mountain-shaped protruding portion, and the state thereof. Then, the second cam body 54 is pressed against the first cam body 52 by the urging force of the coil spring 56. In the state where the top surface 62A is pressed against the top surface 58A in this way, the state in which the table body 40 is in the retracted position is maintained by the urging force of the coil spring 56. That is, the table body 40 is held at the storage position.

When the table body 40 is in the used position, the second engaged portion 59 and the engaged portion 62 are engaged as shown in FIG. Specifically, the slope 62B on the seat front side of the engaged portion 62, which is a mountain-shaped protruding portion, is in contact with the slope 59A of the second engaging portion 59, which is a valley-shaped concave portion. Further, in the present embodiment, the flat surface 54B is a curved apex of a mountain-shaped protruding portion 64 formed between the second engaging portion 59 and the first engaging portion 58 in the rotation direction of the first cam body 52. It is in contact with the surface 64A. In the contact state, the second cam body 54 is pressed against the first cam body 52 by the urging force of the coil spring 56. In the state where the slope 62B is pressed against the top surface 58A and the flat surface 54B is pressed against the top surface 64A, the urging force of the coil spring 56 keeps the table body 40 in the used position. That is, the table body 40 is held at the used position. In particular, in the present embodiment, since the slope 62B is pressed against the top surface 58A and the flat surface 54B is pressed against the top surface 64A, the table body 40 is supported at two points by the second cam body 54. The holding force for holding the table body 40 at the used position is improved.

When the table body 40 is in the forced opening position, the third engaging portion 60 and the engaged portion 62 are engaged as shown in FIG. Specifically, the curved top surface 62A of the engaged portion 62, which is a mountain-shaped protruding portion, abuts on the curved top surface 60A of the third engaging portion 60, which is a mountain-shaped protruding portion, and the state thereof. Then, the second cam body 54 is pressed against the first cam body 52 by the urging force of the coil spring 56. In the state where the top surface 62A is pressed against the top surface 60A in this way, the state in which the table body 40 is forcibly opened is maintained by the urging force of the coil spring 56. That is, the table body 40 is held in the forced opening position.

Further, in the present embodiment, the first cam body 52, the second cam body 54, the coil spring 56, and the cam case 34 are provided on both ends of the rotating shaft 32, respectively.

As shown in FIGS. 8 to 12, the table unit 20 of the present embodiment further includes a cup holder 70 as an example of the functional member and a holding mechanism 80.

(Cup holder)
The cup holder 70 is a member for holding an article such as a cup. The cup holder 70 is rotatably and independently supported on the rotating shaft 32 with respect to the table body 40. In this embodiment, as shown in FIGS. 8 to 12, the table body 40 and the cup holder 70 rotate (rotate and move) around the rotation shaft 32. In FIGS. 8 to 12, the rotation direction in the opening direction of the cup holder 70 is indicated by the arrow R1, and the rotation direction in the closing direction of the cup holder 70 is indicated by the arrow R2.

Further, as shown in FIG. 3, the cup holder 70 is arranged between the base portion 30 and the table main body 40 in the rotation direction of the table main body 40. Further, in the present embodiment, as shown in FIGS. 1 and 2, cup holders 70 are provided on both sides of the rotating shaft 32 in the axial direction, respectively. Further, the size of the cup holder 70 is set to be such that the table body 40 is covered with the table body 40 when viewed from the rear of the seat when the table body 40 is in the storage position.

Further, the cup holder 70 includes a bearing portion 72 (see FIGS. 13 and 14), a holding portion 74 (see FIGS. 1 and 2), and a connecting portion 76 (see FIGS. 1 and 13).

As shown in FIGS. 13 and 14, the bearing portion 72 has a cylindrical shape, and the rotation shaft 32 penetrates the inside of the cylinder (see FIG. 8). As shown in FIGS. 13 and 14, support portions 73 formed in a substantially annular shape are provided at both ends of the bearing portion 72, that is, both ends of the bearing portion 72 in the tubular axial direction. .. The inner surface of the support portion 73 is in contact with the outer surface of the rotary shaft 32 to support the rotary shaft 32. The term "substantially annular" as used herein includes an annular ring that is continuous in the circumferential direction and an annular ring that is partially divided in the circumferential direction. Further, in the present embodiment, the bearing portion 72 including the support portion 73 is integrally formed. The present invention is not limited to this configuration, and the tubular portion of the bearing portion 72 and the support portion 73 may be separate bodies.

As shown in FIG. 2, the holding portion 74 has an annular shape in a plan view, and can hold an article such as a cup inside the annular shape.

As shown in FIG. 1, the connecting portion 76 connects the tubular portion of the bearing portion 72 and the holding portion 74.

(Holding mechanism)
The holding mechanism 80 of the present embodiment is configured to be able to hold the rotational position of the cup holder 70 with respect to the base portion 30 in multiple stages. Further, in the holding mechanism 80 of the present embodiment, the rotation position of the cup holder 70 with respect to the base portion 30 is at least a retracted position (see FIG. 8), a used position (see FIG. 10), and a forced opening position (see FIG. 12). It is said that it can be held in.

FIG. 8 shows a state in which the cup holder 70 is in the retracted position with respect to the base portion 30. Specifically, FIG. 8 shows a state in which the table body 40 is in the used position and the cup holder 70 is in the stored position. As described above, when the cup holder 70 is in the storage position and the table body 40 is also in the storage position, the cup holder 70 is covered with the table body 40 when viewed from the rear of the seat. That is, the length L3 from the center of the bearing portion 72 of the cup holder 70 (same as the center 32CL of the rotating shaft 32) to the tip 74A of the holding portion 74 is shorter than the length L1 of the table body 40. Further, in the present embodiment, the length L3 of the cup holder 70 is longer than the length L2 of the base portion 30.

FIG. 10 shows a state in which the cup holder 70 is in the used position with respect to the base portion 30. Specifically, FIG. 10 shows a state in which the table body 40 is in the used position and the cup holder 70 is also in the used position. The position where the cup holder 70 is used is a position where the angle α with respect to the base portion 30 is larger than the storage position. The angle α here refers to the angle between the axis 56AL of the coil spring 56 and the outer surface 70A of the cup holder 70 (in this embodiment, the outer surface of the connecting portion 76). Further, as shown in FIG. 3, when the cup holder 70 in the used position is viewed from the seat width direction, the holding portion 74 capable of holding the cup or the like faces upward from the table body 40.

FIG. 12 shows a state in which the cup holder 70 is in the forced opening position with respect to the base portion 30. The forced opening position of the cup holder 70 is a position where the angle α with respect to the base portion 30 is larger than the used position.

Further, the holding mechanism 80 is provided around the rotating shaft 32 as shown in FIGS. 8 to 12. The holding mechanism 80 has a protruding portion 82 as an example of an engaging portion, a first claw portion 84 as an example of a first engaged portion, and a second claw portion 86 as an example of a second engaged portion. And have.

As shown in FIGS. 8 to 12, the protruding portion 82 is provided on the portion 30B of the base portion 30 facing the outer periphery of the bearing portion 72. Specifically, the protruding portion 82 protrudes from the facing portion 30B of the base portion 30 toward the outer periphery of the support portion 73 of the bearing portion 72. The protruding portion 82 has a substantially trapezoidal shape when viewed from the width direction of the base portion 30. Further, the protruding portion 82 is integrally formed with the base portion 30. The present invention is not limited to this configuration, and the protruding portion 82 and the base portion 30 may be configured by assembling separate bodies.

Further, the protruding portions 82 are provided on the opposing portions 30B of the base portion 30 at intervals in the axial direction of the rotating shaft 32. Specifically, the protruding portions 82 are provided at positions corresponding to the pair of support portions 73 (see FIG. 13) in the axial direction of the rotating shaft 32 in the opposing portions 30B of the base portion 30.

Further, the protruding portion 82 is integrally formed with the base portion 30.

As shown in FIG. 8, the first claw portion 84 is provided on the outer periphery of the bearing portion 72, more specifically, on the outer periphery of the support portion 73, and when the cup holder 70 is in the retracted position, the first claw portion 84 and the protruding portion 82 are provided. Engage. Specifically, as shown in FIGS. 8 to 12, the first claw portion 84 is a plate-shaped spring material, both ends of the plate are connected to the support portion 73, and the intermediate portion 84A is a support portion. It is separated from the outer circumference of 73. Further, in the intermediate portion 84A of the first claw portion 84, a convex portion 84B that is convex toward the radial outer side of the support portion 73 is formed. The convex portion 84B is formed by extruding a part of the intermediate portion 84A toward the radial outer side of the support portion 73 (see FIG. 14). Further, the convex portion 84B has a mountain shape when viewed from the tubular axis direction of the bearing portion 72. The slope 84C of the convex portion 84B has a larger inclination angle with respect to the radial direction of the support portion 73 than the slope 84D. The slope 84C of the convex portion 84B is a slope on the rotation direction R1 side of the convex portion 84B, and the slope 84D is a slope on the opposite side (rotation direction R2 side) of the convex portion 84B from the rotation direction R1.
Here, since both ends of the first claw portion 84 are connected to the support portion 73 and the intermediate portion 84A is a plate-shaped spring material separated from the outer periphery of the support portion 73, for example, the convex portion 84B is the support portion 73. When pushed inward in the radial direction, the intermediate portion 84A bends (elastically deforms) inward in the radial direction of the support portion 73, as shown in FIG.

As shown in FIG. 10, the second claw portion 86 is the outer circumference of the bearing portion 72, more specifically, the outer circumference of the support portion 73 and is opposite to the rotation direction R1 from the first claw portion 84 (rotation direction R2). It is provided on the side) and engages with the protrusion 82 when the cup holder 70 is in the used position. Specifically, as shown in FIGS. 8 to 12, the second claw portion 86 is a plate-shaped spring material, one end of the plate is connected to the support portion 73, and the other end is supported by a free end. It is separated from the outer periphery of the portion 73. Further, at the other end of the second claw portion 86, a convex portion 86A that is convex toward the radial outer side of the support portion 73 is formed. The convex portion 86A has a mountain shape when viewed from the tubular axis direction of the bearing portion 72. The slope 86B of the convex portion 86A is set to have substantially the same inclination angle with respect to the radial direction of the slope 86C and the support portion 73. The slope 86B of the convex portion 86A is a slope on the rotation direction R1 side of the convex portion 86A, and the slope 86C is a slope on the opposite side (rotation direction R2 side) of the convex portion 86A from the rotation direction R1.
Here, since one end of the second claw portion 86 is connected to the support portion 73 and the other end is a plate-shaped spring material separated from the outer periphery of the support portion 73 by a free end, for example, the convex portion 86A supports the second claw portion 86. When the portion 73 is pushed inward in the radial direction, the other end side of the second claw portion 86 bends (elastically deforms) inward in the radial direction of the support portion 73, as shown in FIG.

Further, the first claw portion 84 and the second claw portion 86 are integrally formed with the support portion 73.

Next, the operation of this embodiment will be described.
In the table unit 20 of the present embodiment, the table body 40 and the cup holder 70 are independently and rotatably supported by a rotating shaft 32 provided on the base portion 30. That is, the table body 40 and the cup holder 70 share the same rotating shaft 32. Therefore, in the table unit 20, for example, the base portion 30 can be made more compact than the configuration in which the rotating shaft for the cup holder 70 is provided on the base portion 30 separately from the rotating shaft 32 for the table main body 40. Specifically, the vertical dimension of the base portion 30 can be reduced.

Further, in the table unit 20 of the present embodiment, when the cup holder 70 is rotated from the storage position (see FIG. 8) to the use position (see FIG. 10) with respect to the base portion 30, the table body 40 is used by the holding mechanism 80. Held in position. Further, when the cup holder 70 is rotated from the used position to the stored position with respect to the base portion 30, the table body 40 is held at the stored position by the holding mechanism 80.
Here, since the holding mechanism 80 is provided around the rotating shaft 32 in the table unit 20, for example, the base portion 30 is provided at a position away from the rotating shaft 32 in the base portion 30. Can be made compact. Specifically, the vertical dimension of the base portion 30 can be reduced.

By making the base portion 30 compact as described above, the weight of the base portion 30 can be reduced. Further, by making the base portion 30 compact, the design of the table unit 20 is improved, the limitation of the mounting space for the seat back 102 is relaxed, and the degree of freedom in design is improved.
Further, in the table unit 20, since the same rotation shaft 32 is shared by the table body 40 and the cup holder 70, for example, the base portion 30 is provided with a rotation shaft for the cup holder 70 separately from the rotation shaft 32 for the table body 40. Compared with the configuration, the structure of the base portion 30 can be simplified and the number of parts can be reduced.

Furthermore, in the table unit 20 of the present embodiment, as shown in FIGS. 4 and 5, when the table body 40 is rotated from the storage position to the use position with respect to the base portion 30, the hinge mechanism 50 causes the table body 40 to rotate. Is held in the used position. Further, when the table body 40 is rotated from the used position to the stored position with respect to the base portion 30, the table body 40 is held at the stored position by the hinge mechanism 50. In this way, in the table unit 20, since the table body 40 is held at the storage position by the hinge mechanism 50, for example, a lock mechanism for holding the table body at the storage position is provided in the base portion separately from the hinge mechanism. In comparison, the base portion 30 can be made compact. Specifically, the vertical dimension of the base portion 30 can be reduced.

Further, in the table unit 20, the second cam body 54 provided on the base portion 30 is pressed against the first cam body 52 provided on the table main body 40, so that the table main body 40 is stored in the storage position with respect to the base portion 30. And held in the position of use. Here, in the table unit 20, since the second cam body 54 is urged in the direction orthogonal to the rotation axis 32 and pressed against the first cam body 52, for example, the second cam body is urged in the rotation axis direction. The dimension along the rotation axis direction of the hinge mechanism 50 (axial direction of the rotation shaft 32, in other words, lateral direction) can be reduced as compared with the configuration in which the hinge mechanism 50 is pressed against the first cam body. In this way, since the dimensions of the hinge mechanism 50 along the rotation axis direction can be reduced, the design of the table unit 20 is further improved, and the degree of freedom in designing the seat back 102 is further improved.

In the table unit 20 of the present embodiment, since the shape of the bearing portion 72 (the shape of the central portion of the bearing portion 72 in the cylindrical axial direction) is tubular, for example, a tubular shape (so-called) in which a part in the circumferential direction is divided is formed. As compared with the configuration using the C-shaped bearing portion, the bearing portion 72 is prevented from falling off from the rotating shaft 32. Further, the cylindrical shape increases the rigidity of the bearing portion 72, so that the durability of the cup holder 70 is improved.

In the table unit 20 of the present embodiment, the cup holder 70 is held in the retracted position by engaging the protruding portion 82 of the base portion 30 and the first claw portion 84 (specifically, the convex portion 84B) of the bearing portion 72. Will be done. Further, the cup holder 70 is held at the used position by engaging the protruding portion 82 with the second claw portion 86 (specifically, the convex portion 86A) of the bearing portion 72. Here, in the table unit 20, the rotational position of the cup holder 70 can be held by a simple structure in which the protruding portion 82 of the base portion 30 and the engaged portion of the bearing portion 72 are engaged with each other.

Further, in the table unit 20 of the present embodiment, the support portions 73 provided with the first claw portion 84 and the second claw portion 86 are provided at both ends of the bearing portion 72 in the tubular axis direction, for example. Compared with the configuration in which the support portion 73 is provided only at one end of the bearing portion 72 in the tubular axis direction or only at the central portion in the tubular axis direction, the rotational operation of the cup holder 70 is stable. Further, since the load on the holding mechanism 80 is reduced, the durability of the holding mechanism 80 is improved.

Further, in the table unit 20 of the present embodiment, the first claw portion 84 is elastically deformable in the radial direction of the support portion 73. Here, when the cup holder 70 is rotationally moved from the retracted position to the used position, the protruding portion 82 first rides on the convex portion 84B of the first claw portion 84 (see FIG. 9), and the intermediate portion 84A including the convex portion 84B is included. Is pushed inward in the radial direction from the protrusion 82 and bends (elastically deforms). Next, when the protruding portion 82 descends from the convex portion 84B of the first claw portion 84, the bent intermediate portion 84A elastically returns, and the protruding portion 82 has the convex portion 86A and the first claw portion 84 of the second claw portion 86. It is held between the convex portion 84B and the convex portion 84B (see FIG. 10). In this embodiment, the protruding portion 82 engages with the convex portion 86A of the second claw portion 86 due to the gravity acting on the table body 40.
On the other hand, when the cup holder 70 is rotationally moved from the used position to the retracted position, the protruding portion 82 rides on the convex portion 84B of the first claw portion 84, and the intermediate portion 84A including the convex portion 84B moves from the protruding portion 82 to the supporting portion 73. It is pushed inward in the radial direction and bends (elastically deforms). Next, when the protruding portion 82 descends from the convex portion 84B of the first claw portion 84, the bent intermediate portion 84A elastically returns, and the protruding portion 82 is on the rotation direction R1 side of the convex portion 84B of the first claw portion 84. It is held in the state where it has reached. In this embodiment, the protruding portion 82 engages with the convex portion 84B of the first claw portion 84 due to the gravity acting on the table body 40.
Here, in the table unit 20, a simple first claw portion 84 and a second claw portion 86 are provided on the outer periphery of the support portion 73, and the first claw portion 84 can be elastically deformed in the radial direction of the support portion 73. In the configuration, the cup holder 70 can be held in the storage position and the use position.

In the table unit 20 of the present embodiment, since the first claw portion 84 and the second claw portion 86 are each made of a plate-shaped spring material, the cup holder 70 is held in the storage position and the use position with a simple spring structure. be able to. Further, in a state where the protruding portion 82 of the base portion 30 is engaged with the convex portion 86A of the second claw portion 86, that is, in a state where the cup holder 70 is in the used position, the cup holder 70 is along the rotation direction R1. When a load is applied, as shown in FIG. 11, the other end of the free end of the second claw portion 86 bends so as to approach the outer periphery of the support portion 73, and the protruding portion 82 of the base portion 30 bends toward the second claw portion 86. Overcome the convex part 86A of. Specifically, when an external force along the rotation direction R1 acts on the cup holder 70 in a state where the protrusion 82 is engaged with the protrusion 86A, the other end of the second claw portion with respect to the protrusion 82 Since the protrusion 82 bends toward the outer periphery of the support portion 73, the protrusion 82 gets over the convex portion 86A and reaches the side opposite to the convex portion 86A in the rotation direction R1 (see FIG. 12).
As described above, in the table unit 20, when the cup holder 70 is in the used position, even if a load is applied to the cup holder 70 along the rotation direction R1, the protruding portion 82 makes the convex portion 86A of the second claw portion 86. Since it can be overcome, damage to the protruding portion 82 and the second claw portion 86 can be suppressed.

Further, in the table unit 20 of the present embodiment, since the rotating shaft 32 is made of metal, the durability of the rotating shaft 32 can be improved. Further, in the table unit 20, the bearing portion 72 is made of resin, and the support portion 73, the first claw portion 84, and the second claw portion 86 constituting the bearing portion 72 are integrally formed. Therefore, for example, the support portion. The number of parts can be reduced as compared with the case where the first claw portion 84 and the second claw portion 86 are separated from the 73. In addition, the bearing portion 72 can be easily manufactured.

In the table unit 20 of the present embodiment, when the table body 40 is rotated from the storage position to the use position with respect to the base portion 30, the second engaging portion 59 and the engaged portion 62 are engaged with each other. The table body 40 is held in the used position. Further, when the table body 40 is rotated from the used position to the stored position with respect to the base portion 30, the first engaged portion 58 and the engaged portion 62 are engaged with each other, and the table body 40 is held in the stored position. To. Here, in the table unit 20, the engagement between the first engaging portion 58 and the second engaging portion 59 and the engaged portion 62 is used to maintain the position of the table main body 40 by the hinge mechanism 50. The table body 40 can be reliably held in the storage position and the usage position.

Further, in the table unit 20, the table body 40 rotates with respect to the base portion 30 around a rotation shaft 32 extending along the seat width direction. Further, when the table main body 40 is in the storage position, the tip portion 40A of the table main body 40 is located upward as compared with the case where the table main body 40 is in the use position. That is, in the table unit 20, the table body 40 reaches the used position by rotationally moving the tip portion 40A of the table body 40 in the storage position to the lower side of the seat around the rotation shaft 32. In other words, by lowering the table body 40 in the storage position, the table body 40 reaches the use position and is held. In this way, in the table unit 20, the table body 40 can be held in the used position by lowering the table body 40 in the stored position. Therefore, for example, the table body in the stored position is lifted and the table body is held in the used position. As compared with this, the force required to open the table body 40 to the used position can be reduced.

Since the first cam body 52 and the second cam body 54 are provided on both ends of the rotating shaft 32 in the table unit 20, the rotational operation of the table body 40 with respect to the base portion 30 is stable. Further, the holding force for holding the table body 40 at the storage position and the use position is also improved.

Further, in the table unit 20, since the length L1 of the base portion 30 and the length L3 of the cup holder 70 are shorter than the length L2 of the table main body 40, respectively, the base is when the table main body 40 is in the storage position. The tip portion 30A of the portion 30 and the cup holder 70 are covered with the table body 40. This improves the appearance, that is, the designability of the table unit 20 when the table body 40 is in the storage position.

[Second Embodiment]
Next, the table unit 90 according to the second embodiment of the present invention will be described. The description of the same configuration as that of the table unit 20 of the first embodiment will be omitted.

The table unit 90 of the present embodiment includes a base portion 30, a table main body 40, and a hinge mechanism 50, similarly to the table unit 20 of the first embodiment.

Further, the table unit 90 of the present embodiment includes a cup holder 91 and a holding mechanism 96 as shown in FIGS. 15 to 21.

(Cup holder)
The cup holder 91 is a member for holding an article such as a cup. The cup holder 91 is rotatably and independently supported on the rotating shaft 32 with respect to the table body 40. In this embodiment, as shown in FIGS. 15 to 19, the table body 40 and the cup holder 91 rotate (rotate and move) around the rotation shaft 32. In FIGS. 15 to 19, as in the first embodiment, the rotation direction in the opening direction of the cup holder 91 is indicated by the arrow R1, and the rotation direction in the closing direction of the cup holder 91 is indicated by the arrow R2.

Further, the cup holder 91 is arranged between the base portion 30 and the table body 40 in the rotation direction of the table body 40, and is arranged on both sides of the rotation shaft 32 in the axial direction, like the cup holder 70 of the first embodiment. Each is provided. Further, the size of the cup holder 91 is set to be such that the table body 40 is covered with the table body 40 when viewed from the rear of the seat when the table body 40 is in the storage position.

Further, the cup holder 91 includes a bearing portion 92 (see FIGS. 20 and 21), a holding portion 74 (see FIGS. 1 and 2), and a connecting portion 76 (see FIGS. 1 and 13). That is, the structure of the cup holder 91 excluding the bearing portion 92 is the same as that of the cup holder 70 of the first embodiment.

As shown in FIGS. 20 and 21, the bearing portion 92 has a cylindrical shape, and the rotation shaft 32 penetrates the inside of the cylinder (see FIG. 15). As shown in FIGS. 20 and 21, at both ends of the bearing portion 92, that is, at both ends of the bearing portion 92 in the tubular axial direction, an annular portion 93 formed in an annular shape and an annular portion 93 of the annular portion 93. A support portion 94 arranged on the inner side in the radial direction is provided.

The support portion 94 has an annular shape (so-called C-shape) in which a part in the circumferential direction is divided, and is elastically deformable. Further, the support portion 94 is arranged coaxially with the annular portion 93 inside the annular portion 93 in the radial direction. The inner surface of the support portion 94 is in contact with the outer surface of the rotary shaft 32 to support the rotary shaft 32. When the cup holder 91 is at least in the retracted position and the used position, the center of the support portion 94 coincides with the center 32CL of the rotating shaft 32. Further, in the present embodiment, the bearing portion 92 including the support portion 94 is integrally formed. The present invention is not limited to this configuration, and the tubular portion of the bearing portion 92 and the support portion 94 may be separate bodies.

As shown in FIGS. 15 to 19 and 21, the opening (C-shaped opening) of the support portion 94 is a portion of the annular portion 93 between the first recess 97 and the second recess 98, which will be described later. It is located inward in the radial direction. The portion between the first recess 97 and the second recess 98 in the annular portion 93 here refers to the range from the slope 97A of the first recess 97 in the annular portion 93 to the slope 98B of the second recess 98. .. Further, it is preferable that a straight line extending from the center of the opening of the support portion 94 along the radial direction of the support portion 94 passes through the center of the first recess 97 and the second recess 98 on the outer periphery of the support portion 94.

Further, at both ends of the opening of the support portion 94, elastically deformable plate-shaped portions 95 extending toward the inner surface of the annular portion 93 are provided. The spacing between these plate-shaped portions 95 is set to be substantially constant from the opening of the support portion 94 toward the inner surface of the annular portion 93. Further, the tip of these plate-shaped portions 95 is connected to a portion of the annular portion 93 between the first recess 97 and the second recess 98.

(Holding mechanism)
The holding mechanism 96 of the present embodiment is configured to be able to hold the rotational position of the cup holder 91 with respect to the base portion 30 in multiple stages. Further, in the holding mechanism 96 of the present embodiment, the rotation position of the cup holder 91 with respect to the base portion 30 is at least a retracted position (see FIG. 15), a used position (see FIG. 17), and a forced opening position (see FIG. 19). It is said that it can be held in.

FIG. 15 shows a state in which the cup holder 91 is in the retracted position with respect to the base portion 30. Specifically, FIG. 15 shows a state in which the table body 40 is in the used position and the cup holder 91 is in the stored position. Similarly to the cup holder 70 of the first embodiment, when the cup holder 91 is in the storage position and the table body 40 is also in the storage position, the cup holder 91 is covered with the table body 40 when viewed from the rear of the seat.

FIG. 17 shows a state in which the cup holder 91 is in the used position with respect to the base portion 30. Specifically, FIG. 17 shows a state in which the table body 40 is in the used position and the cup holder 91 is also in the used position. The position where the cup holder 91 is used is a position where the angle α with respect to the base portion 30 is larger than the storage position. The angle α here refers to the angle between the axis 56AL of the coil spring 56 and the outer surface 91A of the cup holder 91 (in this embodiment, the outer surface of the connecting portion 76).

FIG. 19 shows a state in which the cup holder 91 is in the forced opening position with respect to the base portion 30. The forced opening position of the cup holder 91 is a position where the angle α with respect to the base portion 30 is larger than the used position.

Further, the holding mechanism 96 is provided around the rotating shaft 32 as shown in FIGS. 15 to 19. The holding mechanism 96 has a protruding portion 82 (same as in the first embodiment) as an example of an engaging portion, a first recess 97 as an example of a first engaged portion, and an example of a second engaged portion. The second recess 98 and the like are provided.

As shown in FIGS. 15 and 21, the first recess 97 is provided on the outer periphery of the bearing portion 92, more specifically, on the outer periphery of the annular portion 93, and is a protruding portion when the cup holder 91 is in the retracted position. Engage with 82. Further, the first recess 97 has a valley shape when viewed from the cylinder axis direction of the bearing portion 92. The slope 97A of the first recess 97 has a smaller inclination angle with respect to the radial direction of the support portion 73 than the slope 97B. The slope 97A of the first recess 97 is a slope on the rotation direction R1 side of the first recess 97, and the slope 97B is a slope opposite to the rotation direction R1 of the first recess 97 (rotation direction R2 side). ..

As shown in FIG. 17, the second recess 98 is the outer circumference of the bearing portion 92, more specifically, the outer circumference of the annular portion 93, which is opposite to the first recess 97 in the rotation direction R1 (rotation direction R2 side). The cup holder 91 engages with the protrusion 82 when in use. Further, the second recess 98 has a valley shape when viewed from the cylinder axis direction of the bearing portion 92. The slope 98A of the second recess 98 is set to have substantially the same inclination angle with respect to the radial direction of the slope 98B and the support portion 73. The slope 98A of the second recess 98 is a slope on the rotation direction R1 side of the second recess 98, and the slope 97B is a slope opposite to the rotation direction R1 of the second recess 98 (rotation direction R2 side). ..

Further, a third recess 99 is provided on the outer circumference of the bearing portion 92, specifically, on the outer circumference of the annular portion 93 and on the side opposite to the rotation direction R1 (rotation direction R2 side) from the first recess 97. .. The third recess 99 engages with the protrusion 82 when the cup holder 91 is in the forced opening position.

Next, the operation of this embodiment will be described. Since the action and effect obtained by the same configuration as that of the first embodiment can be obtained by the present embodiment, the description thereof will be omitted.

In the table unit 90 of the present embodiment, the cup holder 91 is held in the retracted position by engaging the protruding portion 82 with the first recess 97 (see FIG. 15). Further, the cup holder 91 is held at the used position by engaging the protruding portion 82 with the second recess 98 (see FIG. 17). Here, since the support portion 94 is partially divided in the circumferential direction and can be elastically deformed, the protrusion portion 82 is shown in FIG. 17 when the cup holder 91 is rotationally moved from the storage position to the use position. The portion of the annular portion 93 between the first recess 97 and the second recess 98 is pushed, and the position of the annular portion 93 is displaced with respect to the rotating shaft 32. At this time, since the opening of the support portion 94 is located radially inside the portion between the first recess 97 and the second recess 98 in the annular portion 93, the support is supported by the pressing force from the protrusion 82. The opening of the portion 94 is pressed against the rotating shaft 32, the opening is opened (elastically deformed so as to open), and the position of the annular portion 93 is displaced with respect to the rotating shaft 32. Then, when the protrusion 82 engages (fits) with (fits) the second recess 98 due to the rotational movement of the cup holder 91, the rotation shaft 32 moves inside the support portion 94, and the protrusion 82 is moved to the second recess 98. Be retained. As described above, in the table unit 90, the first recess 97 and the second recess 98 are provided on the outer periphery of the annular portion 93, and the opening of the support portion 94 of the elastically deformable bearing portion 92 is provided with the first recess 97 and the second recess 97. The cup holder 91 can be held in the storage position and the use position by a simple configuration in which the portion between the two recesses 98 and the recess 98 is located inward in the radial direction.

Further, in the table unit 90 of the present embodiment, elastically deformable plate-shaped portions 95 extending toward the inner surface of the annular portion 93 are provided at both ends of the opening of the support portion 94, and the tip of the plate-shaped portion 95 is provided. It is connected to a portion of the annular portion 93 between the first recess 97 and the second recess 98. Therefore, in the table unit 90, even if the rotary shaft 32 comes out of the opening of the support portion 94, the rotary shaft 32 can be guided to the inside of the support portion 94 by being guided by the pair of plate-shaped portions 95.

Further, in the table unit 90 of the present embodiment, the protruding portion 82 of the base portion 30 is engaged with the second recess 98, that is, the cup holder 91 is in the used position, and the cup holder 91 is rotated in the rotational direction. When the load is applied, the support portion 94 is elastically deformed, and the position of the annular portion 93 is displaced with respect to the rotating shaft 32. Then, the protruding portion 82 of the base portion 30 escapes from the second recess 98, moves on the outer peripheral surface of the annular portion 93, and engages with the third recess 99. As described above, in the table unit 90, when the cup holder 91 is in the used position, even if a load in the rotational direction is applied to the cup holder 91 and the protruding portion 82 exits the second recess 98, the protruding portion 82 is the third. By engaging with the recess 99, it is possible to prevent the cup holder 91 from turning too much.

In the above-described embodiment, the cup holder 70 is provided on both sides of the rotating shaft 32 in the axial direction, but the present invention is not limited to this configuration. The cup holder 70 may be provided only on one side in the axial direction of the rotating shaft 32, or may be provided in three or more at intervals in the axial direction of the rotating shaft 32.

Further, in the above-described embodiment, the table body 40 is configured to be held by the hinge mechanism 50 at a multi-step opening / closing position (rotational position) with respect to the base portion 30, but the present invention is limited to this configuration. However, the hinge mechanism 50 may be configured such that the table body 40 is held at a multi-step opening / closing position with respect to the base portion 30 by using a hinge mechanism having a different structure from the hinge mechanism 50.

In the above-described embodiment, the functional member in the present invention is a cup holder 70 for holding an article such as a cup, but the present invention is not limited to this configuration. It may be a holder for holding items other than cups (for example, food and drink, mobile phones, writing utensils). Further, instead of the cup holder 70, a tray of articles, a mat of articles, or a partition plate may be used as the functional member in the present invention.

Further, in the first embodiment, the table unit 20 is attached to the back surface 102A of the seat back 102 that supports the back of the seated person, but the present invention is not limited to this configuration. For example, it may be attached to the side surface of the seat cushion (not shown) on which the seated person sits (side surfaces on both sides in the seat width direction with the seat surface of the seat cushion interposed therebetween). Specifically, the table unit 20 may be attached to the side surface of the seat cushion on the passenger seat side of the driver's seat. In this case, the base portion 30 is attached to the side surface of the seat cushion so that the front-rear direction of the seat (synonymous with the front-rear direction of the vehicle) is the axial direction of the rotating shaft 32. The mounting direction of the base portion 30 may be such that the rotating shaft 32 is above the seat or below the seat with respect to the base portion 30. Further, the base portion 30 of the table unit 20 may be attached to the door trim (inside of the door) of the vehicle door or the like. The side surface of the seat cushion and the door trim are examples of the vehicle interior portion.
Further, the configuration in which the table unit 20 is attached to other than the back surface 102A of the seat back 102 described above may be applied to the table unit 90 of the second embodiment.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and can be modified in various ways other than the above within a range not deviating from the gist thereof. Of course.

20 Table unit 30 Base 32 Rotating shaft 40 Table body 70 Cup holder (functional member)
72 Bearing part 73 Support part 80 Holding mechanism 82 Protruding part (engaging part)
84 1st claw part (1st engaged part)
86 Second claw part (second engaged part)
90 Table unit (functional member)
91 Cup holder 92 Bearing part 93 Ring part 94 Support part 95 Plate-shaped part 96 Holding mechanism 97 First recess (first engaged part)
98 Second recess (second engaged part)
99 Third recess 100 Seat 102A Back of seat back (vehicle interior)

Claims (11)

The base part attached to the vehicle interior part and
A table body pivotally supported by a rotation shaft provided on the base portion,
A functional member rotatably supported on the rotating shaft independently of the table body,
A holding mechanism provided around the axis of rotation and capable of holding the rotational position of the functional member with respect to the base portion at least in a storage position and a usage position in which an angle with respect to the base portion is larger than the storage position.
Table unit with. The table unit according to claim 1, wherein the functional member is provided with a cylindrical bearing portion through which the rotating shaft penetrates. The holding mechanism is provided on the outer periphery of the bearing portion and the engaging portion provided on the portion of the base portion facing the outer periphery of the bearing portion, and is engaged when the functional member is in the storage position. A first engaged portion that engages with the mating portion and a second engaged portion that is provided on the outer periphery of the bearing portion and engages with the engaging portion when the functional member is in the used position. 2. The table unit according to claim 2. The first engaged portion and the second engaged portion are provided at both ends of the bearing portion in the tubular axis direction, respectively.
The table unit according to claim 3, wherein the engaging portion is provided on the base portion at intervals in the axial direction of the rotating shaft. The bearing portion is provided on a substantially annular support portion that supports the rotating shaft, a first claw portion as the first engaged portion provided on the outer periphery of the support portion, and an outer periphery of the support portion. It has a second claw portion as a second engaged portion, and has.
The engaging portion is a protruding portion that protrudes from the facing portion of the base portion toward the outer periphery of the support portion.
The first claw portion is elastically deformable in the radial direction of the support portion.
The table unit according to claim 3 or 4. The first claw portion is a plate-shaped spring material, both ends of which are connected to the support portion and an intermediate portion is separated from the outer periphery of the support portion.
The table unit according to claim 5, wherein the second claw portion is a plate-shaped spring material, one end of which is connected to the support portion and the other end of which is a free end and is separated from the outer periphery of the support portion. .. The rotating shaft is made of metal and is made of metal.
The bearing portion is made of resin and is made of resin.
The table unit according to claim 5 or 6, wherein the support portion, the first claw portion, and the second claw portion constituting the bearing portion are integrally formed. The bearing portion has an annular portion and an annular portion that is partially divided in the circumferential direction, is arranged coaxially with the annular portion on the radial inside of the annular portion, and is elastically deformable to support the rotation axis. A support portion, a first recess as the first engaged portion provided on the outer periphery of the annular portion, and a second recess as the second engaged portion provided on the outer periphery of the annular portion. Have,
The engaging portion is a protruding portion that protrudes from the facing portion of the base portion toward the outer periphery of the annular portion.
The table unit according to claim 3 or 4, wherein the opening of the support portion is located radially inside the portion between the first recess and the second recess in the annular portion. At both ends of the opening of the support portion, elastically deformable plate-shaped portions extending toward the inner surface of the annular portion are provided.
The table unit according to claim 8, wherein the tip of the plate-shaped portion is connected to a portion of the annular portion between the first recess and the second recess. The table unit according to claim 8 or 9, wherein a third recess is provided on the outer periphery of the annular portion on the side opposite to the first recess with the second recess interposed therebetween. The table unit according to any one of claims 1 to 10, wherein the base portion is attached to the back surface of the seat back as the vehicle interior portion.

Images