CN108437857B

CN108437857B - Seat device

Info

Publication number: CN108437857B
Application number: CN201810148610.4A
Authority: CN
Inventors: 长尾裕; 中根正伸; 中山务
Original assignee: Koito Electric IndustriesLtd
Current assignee: Koito Electric IndustriesLtd
Priority date: 2017-02-13
Filing date: 2018-02-13
Publication date: 2022-01-18
Anticipated expiration: 2038-02-13
Also published as: CN108437857A; TWI744475B; TW201829230A

Abstract

The invention provides a reclining seat device which can restrain the arrangement space and the cost increase and can shield the sight of other people. The seat device (1) is capable of being changed to a reclining state in which the backrest (120) is tilted backward, and a plurality of seats are disposed adjacent to each other in the width direction (D14) of the seat device (1), and the seat device (1) is provided with: a spacer (160) that is disposed on the upper end side of an adjacent seat side surface (120a) of the backrest (120) facing the adjacent seat side, and that blocks the view from the adjacent seat side surface (120a) of a seated person (Y) who leans their back against the backrest (120) toward the head (Y1); and a spacer support portion that is fixed to the upper end side of the adjacent seat side surface (120a) and supports the spacer (160) so as to be movable in the front-rear direction (D14) between a predetermined storage position and a shielding position forward of the storage position.

Description

Seat device

Cross Reference to Related Applications

The present application claims priority to japanese patent application 2017-024207 filed on day 13 of 2017, month 2, and 2017-024208 filed on day 13 of 2017, month 2, the entire contents of which are incorporated herein by reference.

Technical Field

The present invention relates to a seating device such as a passenger seat for a vehicle.

Background

Conventionally, as a seat device such as a passenger seat, a seat device is known in which a reclining state in which a backrest is tilted rearward is changeable (for example, see patent document 1).

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2000-344097

Disclosure of Invention

Problems to be solved by the invention

Here, when the occupant leans against the backrest in a reclining state, for example, a situation of looking at the occupant of the seat device disposed rearward may occur depending on the tilting state of the backrest. In order to block the view of the other person, it is also conceivable to surround the seat device with a spacer, but such a configuration may increase the installation space and the cost.

Therefore, a first problem of the present invention is to provide a reclining seat device that can block the view of others while suppressing an installation space and an increase in cost.

However, in order to suppress a feeling of oppression to a seated person of the rear seat device when the backrest is tilted rearward, a structure is considered in which a rear housing is provided so as to cover the rear of the backrest and to stand upright without movement. A sufficient gap is provided between the backrest and the rear housing so as not to hinder movement of the backrest accompanying change to the reclining state. By providing such a rear housing standing upright, the movement of the backrest is hardly visible to a seat occupant of the seat device behind, and the feeling of oppression is suppressed.

Here, if a gap is provided between the backrest and the rear housing as described above, it is conceivable that various objects such as dust and lost objects enter the gap. If such an entering object is kept as it is, the movement of the backrest may be hindered, but on the other hand, it is often difficult to remove the entering object entering the gap as described above.

Therefore, a second problem of the present invention is to provide a seat device capable of easily removing an object that enters a gap between a backrest and a rear housing.

Means for solving the problems

A first aspect of the present invention made to solve the first problem is a seat device that is freely changeable to a reclining state in which a backrest is tilted rearward, and in which a plurality of seats are disposed adjacent to each other in a width direction of the seat device, the seat device including: a partition disposed on an upper end side of an adjacent seat side surface facing the adjacent seat side of the backrest, and blocking a line of sight of a person from the adjacent seat side surface facing a head of a person who leans back on the backrest; and a spacer support portion that is fixed to the upper end side of the adjacent seat side surface and supports the spacer so as to be movable in the front-rear direction between a predetermined storage position and a shielding position forward of the storage position.

A second aspect is the seat device according to the first aspect, wherein the spacer includes: a plate-shaped main body portion arranged along the side surface of the adjacent seat; and a movable rail that is fixed to a surface of the main body on the side of the adjacent seat and extends in the front-rear direction, wherein the spacer support portion includes a fixed rail that is fixed to the upper end of the side of the adjacent seat and extends in the front-rear direction, the movable rail is fitted to the fixed rail so as to be slidable in the front-rear direction, and at least one of the spacer and the spacer support portion includes a biasing member that biases the other member in the width direction.

A third aspect is the seat device according to the second aspect, wherein the biasing member of the one member is provided with a convex portion that protrudes toward the other member, the other member is provided with a concave portion, the convex portion is fitted into the concave portion so as to be engageable with and disengageable from the concave portion in accordance with movement of the spacer, and one of the convex portion and the concave portion is provided at a plurality of positions in the front-rear direction, the positions including at least positions corresponding to the storage position and the shielding position.

A fourth aspect is the seat device according to any one of the first to third aspects, wherein the spacer support portion includes, in the front-rear direction: a front stopper that restricts forward movement of the spacer beyond the shielding position; and a rear stopper that restricts rearward movement of the spacer beyond the storage position.

A fifth aspect of the present invention devised to solve the second problem is a seat device that is freely changeable to a reclining state in which a backrest is tilted rearward, the seat device including a rear case, the rear housing covers the rear of the backrest and is vertically provided in a state of being spaced from the backrest by a sufficient gap so as not to prevent the movement of the backrest accompanying the change to the reclining state, a discharge hole for discharging the entering object entering the gap from the gap is arranged on the rear shell, a guide sheet is arranged on the gap, the guide sheet extends from the backrest to the discharge hole of the rear housing so as to form a descending slope, guides the intake object to the discharge hole, and is deformable in accordance with movement of the backrest.

A sixth aspect is the seat device according to the fifth aspect, wherein at least an end portion of the guide sheet on the side of the discharge hole is detachably joined to the rear housing.

A seventh aspect is the seat device according to the sixth aspect, wherein the end portion of the guide sheet is joined to the rear housing by a hook and loop fastener.

An eighth aspect is the seat device according to any one of the fifth to seventh aspects, wherein the backrest side of the guide sheet is integrally molded with an outer covering cloth that covers the backrest.

Effects of the invention

According to the first aspect, the view of another person can be blocked by moving the spacer to the blocking position. Further, since the spacer is configured to be supported by the spacer support portion on the upper end side of the adjacent seat side surface of the backrest, an increase in size and cost can be suppressed in connection with the addition of the spacer. As described above, according to the invention described in claim 1, in the reclining seat device, it is possible to block the view of other people while suppressing an increase in installation space and cost.

According to the second aspect, the increase in installation space and cost can be further suppressed by the simple structure of the movable rail on the side of the partitioning member and the fixed rail on the side close to the rear, and the play in movement that is likely to occur due to such a structure can be effectively suppressed by the urging member.

According to the third aspect, by engaging and disengaging at a plurality of positions including at least the positions corresponding to the storage position and the shielding position, a click feeling can be given to a seated person who moves the partitioning member to recognize the respective positions of the partitioning member, and operability can be improved.

According to the fourth aspect, the restriction by the front stopper and the rear stopper can avoid a situation in which a seated person who moves the partitioning member unnecessarily moves the partitioning member to an unexpected position. According to the fourth aspect, operability can be improved in this respect.

According to the fifth aspect, the inlet that enters the gap between the backrest and the rear housing is smoothly guided to the discharge hole along the formed descending slope by the guide sheet and discharged from the discharge hole. That is, according to the fifth aspect, the entering object entering the gap between the backrest and the rear housing can be easily removed.

According to the sixth aspect, the end portion of the guide sheet on the discharge hole side can be easily detached from the rear housing. In the case where the backrest side is integrally molded with an outer cover cloth covering the backrest, the guide sheet can be removed together with the outer cover cloth. Alternatively, when the guide sheet is detachably joined to the backrest, only the guide sheet can be removed. In any case, the guide sheet removed in this way can be washed, and the washed guide sheet and a new guide sheet can be easily attached.

According to the seventh aspect, since the attachment and detachment of the guide sheet by the hook and loop fastener is very easy, the operability of attachment and detachment of the guide sheet can be improved.

According to the eighth aspect, since the back side of the guide sheet is integrally molded with the outer covering cloth of the backrest, it is not possible to easily remove the outer covering cloth by a person other than a skilled maintenance worker who removes the outer covering cloth from the backrest. This makes it possible to facilitate the attachment and detachment of the end portion on the discharge hole side by the maintenance operator, and to prevent the guide sheet from being easily carried away by a malicious person.

Drawings

Fig. 1 is a perspective view of a seat device according to a first embodiment as viewed from the front of a seated person.

Fig. 2 is a perspective view showing the seat device after being changed to the reclining state.

Fig. 3 is a view showing the separator shown in fig. 1 and 2.

Fig. 4 is a perspective view of the spacer and the spacer support portion shown in fig. 3, as viewed from the backrest side.

Fig. 5 is a schematic view of the partitioning member shown in fig. 4 and the partitioning member support portion as viewed from the direction of arrow V11 in fig. 4.

Fig. 6 is a view showing a state in which the spacer is viewed from the back side and the thin metal plate is removed from the spacer support portion, as in the lower side view of fig. 4, with respect to the movement of the spacer between the storage position and the shielding position.

Fig. 7 is a diagram showing a positional relationship between two leaf springs constituting the urging member and a movable plate of the spacer with respect to the movement of the spacer between the storage position and the shielding position.

Fig. 8 is a view showing a state in which the partition located at the shielding position is viewed from the backrest side, as in the upper side view of fig. 4.

Fig. 9 is a perspective view of the seat device according to the second embodiment as viewed from the front of the seated person.

Fig. 10 is a perspective view of the seat device shown in fig. 9 viewed from the rear housing side.

Fig. 11 is a view showing the seat device in a state where the backrest is removed so that the discharge hole provided in the rear housing can be seen from the side of the gap between the backrest and the rear housing.

Fig. 12 is a view showing a structure for discharging an intake matter entering a gap between the backrest and the rear case from the discharge hole.

[ notation ] to show

1. 2 seating device

110. 210 seat part

120. 220 back support

120a adjacent to the side of the mat

121 projecting part

121a wall part

130. 230 rear shell

140. 240 leg support

150. 250 base

160 separator

160a holding part

161 main body part

162 movable rail

162a surround part

162a-1 fixing sheet

162a-2 upright piece

162a-3 extension piece

162a-4 resin block

162a-4a recess

170 spacer support

171 thin metal plate

171a window hole

171b front stop

172 fixed rail

172a step part

172b rear stop

173 forcing member

173a leaf spring

173a-1 convex part

174 screw

221 outer covering cloth

231 back table

232 small article hanging piece

233 beverage holder

234 exhaust hole

260 guide sheet

261 end portion

270 hook and loop fastener

D11 and D21 width directions

D12, D13, D22, D23 arrows

D14 and D24 in the front-rear direction

D111 pressing direction

S11, S21 gap

The person sitting in Y-shaped

Y1 head

Detailed Description

(first embodiment)

The seat device according to the first embodiment will be described below. Note that the up, down, left, right, front, and rear used in the following description are up, down, left, right, front, and rear as viewed from a seated person seated in the seat device.

The seat device 1 of the present embodiment is a passenger seat to be mounted in a passenger compartment of a vehicle such as a railway vehicle, and two seats are disposed adjacent to each other in the width direction D11. The seat device 1 includes a seat 110, a backrest 120, a rear case 130, a leg rest 140, and a base 150, and is a device that can be freely changed to a reclining state described below upon receiving an operation by a seated user.

Fig. 2 is a perspective view showing the seat device after being changed to the reclining state. In fig. 2, one of the two seats disposed adjacent to each other on the front side in the figure is shifted to the reclining state.

The reclining state is basically a state in which the backrest 120 is tilted rearward as indicated by an arrow D12 in fig. 1. In fig. 1, both seats are shown in an upright state in which the backrest 120 stands upright.

The backrest 120 is pivotally connected to the rear end side of the seat 110 so as to be able to shift from the standing state to the reclining state. Further, in the present embodiment, the seat section 110 projects forward so that the rear end side sinks and the front end side rises as indicated by an arrow D13 in fig. 1 while the backrest 120 is tilted. By such movement, the seated person Y can sit in a state of enhanced sense of stability by leaning the back against the backrest 120 in a state of waist sinking in the reclining state. The seated person Y can arbitrarily set the tilt angle of the backrest 120 in the reclining state within a predetermined angle range. The seat 110 and the backrest 120 are supported by the base 150 via a link mechanism, not shown, so as to be switchable to such a reclining state.

The rear case 130 is disposed rearward of the backrest 120 in the front-rear direction D14. The rear case 130 is fixed to the base 150 in a state where it is not moved in the front-rear direction D14. In the non-reclining state shown in fig. 1, a sufficient gap S11 is provided between the backrest 120 and the rear housing 130 so as not to interfere with the movement of the backrest 120 to be changed to the reclining state. When the reclining state is changed, the rear housing 130 remains stationary, and the backrest 120 falls rearward as indicated by an arrow D12. In the present embodiment, the tilt angle of the backrest 120 can be set within an angular range from the upright position in the upright state shown in fig. 1 to a position where the backrest 120 slightly contacts the rear housing 130.

By providing the rear housing 130 standing upright on the base 150 without any movement, the movement of the backrest 120 indicated by the arrow D12 is hardly seen by the occupant of the seat device at the rear, and the feeling of oppression is suppressed.

Although not shown, a back table, a small article hanger, a beverage holder, and the like for a seated person of the seat device behind are attached to the rear case 130 that does not move relative to the movement of the backrest 120. Since the rear case 130 is not moved, articles placed on the back table, a bag hooked on a small article hanger, a beverage bottle held in a beverage holder, and the like are not affected by the movement of the backrest 120. Therefore, the back table, the small article hanging member, and the beverage holder can be comfortably used by the rear seated person.

The leg rest 140 is pivotally connected to the front end side of the seat 110 so as to be rotatable between a hanging position shown in fig. 1 and a pop-up position shown in fig. 2. For example, as shown in fig. 2, the seated person Y can move the leg rest 140 to the bounce position by performing a predetermined operation in the reclining state.

Here, in the present embodiment, both sides of the backrest 120 in the width direction D11 are projected forward, and a recessed shape that stably accommodates the back of the seated person Y is formed on the front surface of the backrest 120. Further, the projecting portions 121 on both sides in the width direction D11 are provided at their upper end sides with wall portions 121a of a sufficient size to project further forward and allow the head Y1 of the seated person Y to rest thereon.

In the present embodiment, a spacer 160 described below is provided on the upper end side of the adjacent seat side surface 120a of the backrest 120 facing the adjacent seat side.

Fig. 3 is a view showing the separator shown in fig. 1 and 2.

The spacer 160 is a plate-like member provided on the upper end side of the adjacent seat side surface 120a of the backrest 120, that is, on the surface facing the adjacent seat side of the wall portion 121 a. The spacer 160 functions as a shielding plate that blocks a view from others on the side of the adjacent seat side surface 120a toward the head Y1 of the occupant Y who leans against the backrest 120 with his back.

A spacer support portion 170 is fixed to a surface of the wall portion 121a facing the adjacent seat side. The spacer support portion 170 is fixed to the surface of the wall portion 121a, and supports the spacer 160 so as to be movable between a predetermined storage position and a shielding position forward of the storage position in the front-rear direction D14. In fig. 3, the storage position of the partitioning member 160 is shown on the left side in the drawing, and the shielding position of the partitioning member 160 is shown on the right side in the drawing.

In the present embodiment, the seated person Y moves the spacer 160 to store it in the storage position or moves it to the shielding position. On the front end side of the spacer 160, a grip portion 160a is provided to be gripped by the occupant Y at this time. The storage position is a position at which the spacer 160 is retracted rearward to such an extent that the grip portion 160a is not blocked by the wall portion 121a of the backrest 120, as viewed from the occupant Y.

Fig. 4 is a perspective view of the spacer and the spacer support portion shown in fig. 3, as viewed from the backrest side. In fig. 4, the upper side of the drawing shows a state where a thin metal plate 171 is provided as one of the constituent members of the spacer support portion 170, and the lower side of the drawing shows a state where the thin metal plate 171 is removed.

As shown in fig. 4, the separator 160 includes: a plate-shaped body portion 161, the body portion 161 being disposed along the adjacent seat side surface 120a of the backrest 120; and a movable rail 162 fixed to the surface of the main body 161 on the side of the seat side surface 120a and extending in the front-rear direction D14.

On the other hand, the spacer support portion 170 includes a fixing rail 172, and the fixing rail 172 is fixed to the wall portion 121a, which is the upper end side of the adjacent seat side surface 120a of the backrest 120, and extends in the front-rear direction D14. The movable rail 162 of the spacer 160 is fitted to the fixed rail 172 so as to be slidable in the front-rear direction D14. Further, in the present embodiment, the spacer support portion 170 includes the biasing member 173, and the biasing member 173 biases the spacer 160 in the pressing direction D111 in the width direction D11, in which the movable rail 162 of the spacer 160 is pressed. The biasing member 173 is formed of two plate springs 173a extending in a belt-like shape in the front-rear direction D14 and arranged in the front-rear direction D14.

As shown in fig. 4 and 5, the fixing rail 172 of the spacer support 170 is a member having a T-shaped cross section as follows: in a rectangular plate whose front-rear direction D14 is a longitudinal direction in plan view, the vicinity of both long sides is made stepwise thinner from the backrest 120 side by a predetermined width. The fixing rail 172 is fixed to the thin metal plate 171 with six screws 174.

The spacer support 170 is formed with a convex portion 173a-1 formed by bending the front end portion in the front-rear direction D14 of each of the two plate springs 173a constituting the biasing member 173 in an arc shape so as to protrude toward the spacer 160. The two plate springs 173a are arranged in parallel with the upper step 172a of the two long step 172a of the fixed rail 172 in each of fig. 4 and 5, and are fixed to the thin metal plate 171. The thin metal plate 171 is provided with a window hole 171a through which the projection 173a-1 provided at the tip end of each leaf spring 173a passes. The convex portion 173a-1 of each leaf spring 173a protrudes through the window hole 171a, and the tip of the convex portion 173a-1 protrudes toward the stepped portion 172a on the upper side of the fixed rail 172.

The movable rail 162 of the spacer 160 includes a pair of embracing members 162a that engage with the stepped portions 172a on the two long sides of the fixed rail 172 in an embracing manner. Each of the embracing members 162a includes a fixing piece 162a-1, an upright piece 162a-2, and an extending piece 162 a-3. The fixing piece 162a-1 is fixed to the main body 161 of the spacer 160 by screwing, and the standing piece 162a-2 stands from the fixing piece 162a-1 toward the backrest 120. The protruding piece 162a-3 is a portion protruding from the standing piece 162a-2 in the opposite direction of the fixing piece 162a-1 with an interval corresponding to the thickness of the step portion 172a of the fixing rail 172 between the protruding piece and the main body 161 of the spacer 160.

The pair of embracing members 162a are fixed to the main body portion 161 between the protruding pieces 162a-3 and the main body portion 161 of the spacer 160 so as to enter into the step portions 172a on both long sides of the fixed rail 172, respectively, to constitute the movable rail 162.

Further, in the present embodiment, a rectangular parallelepiped resin block 162a-4 extending in the front-rear direction D14 is attached to the surface of the protruding piece 162a-3 of each embracing member 162a on the side close to the back side. The resin block 162a-4 is provided with an arc-shaped concave portion 162a-4a corresponding to the arc-shaped curved shape of the convex portion 173a-1 of the plate spring 173a at the center in the front-rear direction D14.

The convex portion 173a-1 of the plate spring 173a is fitted into the concave portion 162a-4a of the resin block 162a-4 of the upper surrounding member 162a in each of fig. 4 and 5, of the pair of surrounding members 162a so as to be engageable with and disengageable from the movement of the spacer 160.

Here, in the present embodiment, the pair of embracing members 162a are formed as members having the same shape as each other, including the resin blocks 162 a-4. Thus, the surrounding member 162a can be used as a member having one shape, and the manufacturing cost can be reduced.

As shown in fig. 5, in the present embodiment, almost all of the spacer support portion 170 except for a portion of the fixed rail 172 on the spacer 160 side is embedded in the cushion member constituting the wall portion 121a of the backrest 120. The movable rail 162 of the spacer 160 slides along the fixed rail 172 while almost all of the pair of embracing members 162a are inserted into the wall portion 121 a.

Fig. 4 shows a state in which the partitioning member 160 is located at the storage position shown on the left side in fig. 3 with respect to the partitioning member support portion 170. As shown in fig. 4, at this time, the convex portion 173a-1 of the rear leaf spring 173a shown on the left side in the figure is fitted in the concave portion 162a-4a of the embracing member 162a on the upper side in the figure.

Here, in the present embodiment, the rear end portions of the pair of step portions 172a of the fixed rail 172 on the left side in fig. 4 stand up in a wall shape, and thereby form the rear stoppers 172b with which the rear end portions of the embracing member 162a located at the storage position abut. The rear stopper 172b restricts the movement of the partitioning member 160 in the rearward direction beyond the storage position. The rear stopper 172b is fixed to the main body portion of the fixed rail 172 by two screws, and the rear stopper 172b can be removed by removing the two screws. That is, the spacer 160 is detachable from the fixed rail 172, i.e., the spacer support 170. Thus, the partition 160 can be attached after covering the skin of the backrest 120 at the time of assembly. In addition, the partition 160 can be easily detached from the backrest 120 for maintenance.

When the spacer 160 moves forward and is located at the shielding position shown on the right side in fig. 3, the convex portion 173a-1 of the front leaf spring 173a shown on the right side in fig. 4 is fitted in the concave portion 162a-4a of the upper embracing member 162a in the drawing.

At this time, the front end portion of the thin metal plate 171 shown on the upper side in fig. 4 on the right side in fig. 4 is bent toward the spacer 160, and thereby, a front stopper 171b is formed to be abutted by the front end portion of the embracing member 162a located at the shielding position. The front stopper 171b restricts forward movement of the divider 160 beyond the shielding position.

Hereinafter, the movement of the spacer 160 between the storage position and the shielding position will be described with reference to fig. 6 to 8.

Fig. 6 is a view showing the movement of the spacer between the storage position and the shielding position, as in the lower side view of fig. 4, when the spacer is viewed from the back side and the thin metal plate is removed from the spacer support portion. Fig. 7 is a diagram showing a positional relationship between two leaf springs constituting the urging member and a movable plate of the spacer with respect to the movement of the spacer between the storage position and the shielding position. Fig. 8 is a view of the partition located at the shielding position as viewed from the back side, similarly to the view shown on the upper side of fig. 4. In fig. 6 and 8, the right side in the drawing is forward of the front-rear direction D14, the left side in the drawing is rearward of the front-rear direction D14, and in fig. 7, the left side in the drawing is forward of the front-rear direction D14 and the right side in the drawing is rearward of the front-rear direction D14, on the contrary.

As shown in fig. 6 and 7, when the spacer 160 is at the storage position, the convex portion 173a-1 of the rear leaf spring 173a of the pair of leaf springs 173a constituting the biasing member 173 is fitted in the concave portion 162a-4a of the embracing member 162 a. In this state, the plate spring 173a on the rear side biases the spacer 160. The protruding piece 162a-3 to which the resin block 162a-4 is attached is pressed against the surface of the stepped portion 172a of the fixed rail 172 by this biasing force.

In addition, the convex portion 173a-1 of the front plate spring 173a abuts against the step portion 172a of the fixed rail 172. Further, at this time, the rear end portion of the embracing member 162a abuts against the rear stopper 172b of the fixed rail 172, and the movement of the partitioning member 160 in the rear direction beyond the storage position is restricted.

When the spacer 160 is moved forward from the storage position by the pulling of the occupant, first, the convex portion 173a-1 of the rear plate spring 173a is disengaged from the concave portion 162a-4a, and the surface of the resin block 162a-4 is pressed and subjected to sliding friction. During this time, the projecting piece 162a-3 moves forward while being pressed against the surface of the stepped portion 172a of the fixed rail 172.

When the spacer 160 further moves forward, the convex portion 173a-1 of the rear leaf spring 173a is disengaged from the rear end portion of the embracing member 162a and reaches an intermediate position where it abuts against the step portion 172a of the fixed rail 172. At this intermediate position, the front end of the embracing member 162a abuts against the convex portion 173a-1 of the front leaf spring 173 a. At the intermediate position, the following state is formed: both the plate springs 173a constituting the biasing member 173 press the step portion 172a of the fixed rail 172, and the embracing member 162a, i.e., the spacer 160 is retracted by the biasing force of the biasing member 173.

When the spacer 160 reaches the intermediate position, the occupant who pulls the spacer 160 can feel a click feeling when the convex portion 173a-1 of the plate spring 173a is disengaged from the embracing member 162 a.

When the spacer 160 moves further forward from the intermediate position, first, the convex portion 173a-1 of the front leaf spring 173a rises upward from the rear end of the resin block 162a-4 of the embracing member 162a toward the front surface. To assist this jump, the rear end of the resin block 162a-4 is formed in a curved shape. After the jump, the convex portion 173a-1 of the front leaf spring 173a presses the surface of the resin block 162a-4 and performs sliding friction. During this time, the projecting piece 162a-3 moves forward while being pressed against the surface of the stepped portion 172a of the fixed rail 172.

When the spacer 160 further moves forward, the convex portion 173a-1 of the front leaf spring 173a reaches the shielding position where it is fitted in the concave portion 162a-4a of the embracing member 162 a. In this state, the plate spring 173a on the front side biases the spacer 160. The protruding piece 162a-3 to which the resin block 162a-4 is attached is pressed against the surface of the stepped portion 172a of the fixed rail 172 by this biasing force.

In the shielding position, as shown in fig. 7 and 8, the front end of the embracing member 162a abuts against the front stopper 171b of the thin metal plate 171, thereby restricting the forward movement of the separator 160 beyond the shielding position.

When the partitioning member 160 reaches the shielding position, a seated person who pulls the partitioning member 160 is made to feel a click feeling when the convex portions 173a-1 of the plate spring 173a are fitted with the concave portions 162a-4a of the embracing member 162 a.

Further, when the partition 160 is returned to the storage position, the seated person first feels a click feeling when the partition 160 reaches the intermediate position. When the spacer 160 reaches the storage position and the convex portion 173a-1 of the rear leaf spring 173a is fitted into the concave portion 162a-4a of the embracing member 162a, a click feeling can be felt.

According to the seat device 1 of the present embodiment described above, the spacer 160 is moved to the shielding position, so that the sight of another person can be shielded. In fig. 2, the spacer 160 of the seat device 1 in the reclined state is pulled out forward and positioned at the shielding position. When the occupant Y leans against the backrest 120 in the reclining state, depending on the tilting state or the like, the occupant may look at not only the adjacent seat device 1 but also the occupant of the seat device disposed rearward (particularly obliquely rearward) in some cases. In the event of such a situation, according to the seat device 1 of the present embodiment, the partitioning member 160 is pulled out and moved to the shielding position, thereby blocking the sight lines of the adjacent another person and the other person behind.

Further, since the spacer 160 is configured to be supported by the spacer support portion 170 on the upper end side of the adjacent seat side surface 120a of the backrest 120, an increase in size and cost can be suppressed in the point of adding the spacer 160. As described above, according to the seat device 1 of the present embodiment, in the reclining seat device 1, it is possible to block the view of another person while suppressing an increase in installation space and cost.

In addition, according to the seat device 1 of the present embodiment, the increase in installation space and cost can be further suppressed by the simple structure of the movable rail 162 on the spacer 160 side and the fixed rail 172 on the backrest 120 side. In addition, the biasing member 173 can effectively suppress the movement fluctuation that is likely to occur in such a structure.

In addition, according to the seat device 1 of the present embodiment, the engagement and disengagement of the convex portion 173a-1 of the plate spring 173a with and from the concave portion 162a-4a of the embracing member 162a are generated at two positions corresponding to the storage position and the shielding position of the spacer 160. Thus, when the spacer 160 reaches the storage position and the shielding position, the feeling of clicking can be given to the occupant Y who moves the spacer 160, and the occupant Y can be made aware of the respective positions of the spacer 160, thereby improving operability.

Further, in the present embodiment, the intermediate position between the storage position and the shielding position is a position that gives the clicking sensation to the seated person Y when the convex portion 173a-1 of the plate spring 173a is disengaged from the embracing member 162 a. As described above, in the present embodiment, the three positions provide a click feeling to the occupant Y depending on the situation, and the occupant Y is made aware of the respective positions of the spacers 160, thereby improving the operability.

Further, according to the seat device 1 of the present embodiment, the situation in which the partitioning member 160 is unnecessarily moved to an unintended position by the occupant Y who moves the partitioning member 160 can be avoided by the restriction of the front stopper 171b and the rear stopper 172 b. The seat device 1 according to the present embodiment can improve the operability also in this respect.

Here, for example, in the first embodiment, the seat device 1 in which two seats are arranged adjacent to each other in the width direction D11 is illustrated as an example of the seat device. However, the seat devices are not limited to this, and the number of the seat devices may be three or more.

In the first embodiment, the following seat device 1 is illustrated as an example of the seat device: the change to the reclining state can be performed not only in such a manner that the backrest 120 is tilted but also in such a manner that the rear end of the seat 110 is lowered and protrudes forward. However, the seat device is not limited to this, and may be configured such that only the backrest is tilted without moving the seat, for example. The structure of the backrest is not particularly limited to the structure connected to the seat, as long as it can be changed to the reclining state, and may be a structure connected to another frame or the like, instead of being connected to the seat.

In the first embodiment, the seat device 1 provided with only one spacer 160 is illustrated as an example of the seat device. However, the seating device is not limited thereto. For example, the seat device may have the following structure: other seats are disposed adjacent to each other on both sides, such as a seat in which the centers of three seats are arranged, and two spacers are provided in total by providing one on each of both sides in the width direction.

In the first embodiment, the following seat device 1 is illustrated as an example of the seat device: the spacer 160 is movably supported by fitting the movable rail 162 of the spacer 160 to the fixed rail 172 of the spacer support 170. However, the seat device is not limited to this, and the specific support structure thereof may be any as long as the spacer is movably supported by the spacer support portion. However, as described above, the simple support structure such as the fitting of the rails can further suppress an increase in installation space and cost of the spacer.

In the first embodiment, the biasing member 173 including the two plate springs 173a provided only on the spacer support portion 170 is illustrated as an example of the biasing member. However, the biasing member is not limited to this, and may be provided on the spacer, or on both the spacer support portion and the spacer, for example. The urging force generating portion is not limited to a plate spring, and may be, for example, a coil spring, and the number thereof is not limited to two, and may be set to any number such as one, three or more.

In the first embodiment, as an example of the convex portion, the urging member 173 is provided with one convex portion 173a, and two convex portions 173a-1 are provided at two positions in the front-rear direction D14. In addition, as an example of the concave portion, one concave portion 162a-4 provided in the upper surrounding member 162a of the pair of surrounding members 162a of the movable rail 162 is illustrated. However, the convex and concave portions are not limited thereto. The convex portion and the concave portion may be, for example, a single convex portion provided on the biasing member, concave portions disposed at a plurality of positions in the front-rear direction on the movable rail, or the like.

(second embodiment)

The seat device according to the second embodiment will be described below. Note that the up, down, left, right, front, and rear used in the following description are up, down, left, right, front, and rear as viewed from a seated person seated in the seat device.

The seat device 2 of the present embodiment is a passenger seat to be mounted in a passenger compartment of a vehicle such as a railway vehicle, and two seats are disposed adjacent to each other in the width direction D21 of the seat device 2. The seat device 2 includes a seat 210, a backrest 220, a rear case 230, a leg rest 240, and a base 250, and the seat device 2 is a device that can be freely changed to a reclining state described below in response to an operation of a seat occupant.

The reclining state is basically a state in which the backrest 220 is tilted rearward as indicated by an arrow D22. Fig. 9 shows a standing state in which the back rests 220 of the seat devices 2 of both seats stand upright.

The backrest 220 is pivotally connected to the rear end side of the seat 210 so as to be able to shift from the standing state to the reclining state. Further, in the present embodiment, while the backrest 220 is tilted, the seat section 210 projects forward so that the rear end side sinks and the front end side rises, as indicated by an arrow D23 in fig. 9. By such movement, the seated person can sit in a state of enhanced sense of stability by leaning the back against the backrest 220 in a state of waist sinking in the reclining state. In addition, the seated person can arbitrarily set the tilt angle of the backrest 220 in the reclining state within a predetermined angle range. The seat 210 and the backrest 220 are supported by the base 250 via a link mechanism, not shown, so as to be switchable to such a reclining state.

The rear case 230 is disposed rearward of the backrest 220 in the front-rear direction D24. The rear case 230 is fixed to the base 250 in a state where it is not moved in the front-rear direction D24. In the non-reclining state shown in fig. 9, a sufficient gap S21 is provided between the backrest 220 and the rear case 230 so as not to hinder the movement of the backrest 220 that is switched to the reclining state. When the reclining state is changed, the rear case 230 remains stationary, and the backrest 220 falls rearward as indicated by an arrow D22. In the present embodiment, the tilt angle of the backrest 220 can be set within an angular range from the upright position in the erected state shown in fig. 9 to a position where the backrest 220 slightly contacts the rear housing 230.

By providing the rear housing 230 standing upright on the base 250 without any movement, the movement of the backrest 220 indicated by the arrow D22 is hardly seen by the occupant of the seat device at the rear, and the feeling of oppression is suppressed.

Further, a back table 231, a small article hanging member 232, a beverage holder 233, and the like, which are used by a seated person of the seat device behind, are attached to the rear case 230 that does not move relative to the movement of the backrest 220. Since the rear case 230 is not moved, articles placed on the back table 231, a bag hooked on the small article hanging tool 232, a beverage bottle held by the beverage holder 233, and the like are not affected by the movement of the backrest 220. Therefore, the rear seated person can comfortably use the back table 231, the small article hanging member 232, and the beverage holder 233.

The leg rest 240 is pivotally connected to the front end side of the seat section 210 so as to be able to pivot between a hanging position shown in fig. 9 and a pop-up position popped up upward. The seated person can move the leg rest 240 to the sprung position by performing a predetermined operation in the reclining state, for example.

Here, in the present embodiment, a discharge hole 234 for discharging various entering objects such as trash and lost objects entering the gap S21 between the backrest 220 and the rear case 230 from the gap S21 is provided below the back table 231 of the rear case 230.

As shown in fig. 11, the inside of the rear case 230 has a complicated concave-convex shape, and the gap S21 between the backrest 220 and the rear case 230 decreases as it goes downward. If such an entering object enters such a narrow portion, it is difficult to remove such an entering object. Therefore, in the present embodiment, in order to discharge such an inlet from the discharge hole 234 without directing it downward, a structure described below is provided.

Fig. 12 is a view showing a structure for discharging an intake matter entering a gap between the backrest and the rear case from the discharge hole. Such a configuration is schematically illustrated in fig. 12 by a simplified longitudinal section through the seat arrangement 2. Fig. 12 shows two states of the seat device 2, namely, an upright state and a reclining state. In the standing state, the backrest 220 stands up, the seat 210 retreats rearward, and the leg rest 240 hangs down. In the reclining state in fig. 12, the backrest 220 is tilted in the direction of arrow D22, the rear end of the seat section 210 sinks downward and protrudes forward, and the leg rest 240 is sprung up. In the standing state, the following state is formed: a gap S21 is spaced between the backrest 220 and the rear housing 230, and the gap S21 opens upward. On the other hand, in the reclining state in which the backrest 220 is tilted at the maximum, the following state is formed: the gap S21 is narrowed, and the upper end of the rear case 230 contacts the backrest 220 at the upper side to close the opening.

Here, in the present embodiment, the guide sheet 260 is provided in the gap S21, and the guide sheet 260 extends to form a descending slope from the backrest 220 to the discharge hole 234 of the rear case 230, and guides the entering object to the discharge hole 234. In the present embodiment, the guide sheet 260 is made of a soft fabric and can be deformed in accordance with the movement of the backrest 220 accompanying the change to the reclining state.

The end 261 of the guide sheet 260 on the discharge hole 234 side is detachably joined to the rear case 230. Specifically, the end 261 is joined to the rear case 230 by a hook and loop fastener 270 such as Velcro (registered trademark). In the present embodiment, as shown in fig. 10 and 11, the exhaust hole 234 is formed in an elongated hole shape extending in the width direction D24 of the seat device 2. The lower edge of the support member protrudes inward of the gap S21 in a shelf-like manner. The rear case 230 side of the hook and loop fastener 270 is attached to the shelf-like projecting portion, and the guide sheet 260 side of the hook and loop fastener 270 is attached to a position overlapping the projecting portion. The end portion 261 of the guide sheet 260 is engaged with the rear case 230 due to the overlapping of the above-described two portions of the hook and loop fastener 270, and the end portion 261 of the guide sheet 260 is detached from the rear case 230 by tearing the above-described two portions. In the present embodiment, the backrest 220 side of the guide sheet 260 is integrally molded with the outer cover cloth 221 covering the backrest 220.

Here, although not particularly limited, the guide sheet 260 may be molded integrally with the outer cover cloth 221 on the backrest 220 side as follows. That is, the guide sheet 260 may be formed as an extension of the outer covering cloth 221, or an end of the guide sheet 260 formed in a separate structure may be sewn to the outer covering cloth 221.

According to the seat device 2 of the present embodiment described above, the entering object that enters the gap S21 between the backrest 220 and the rear housing 230 is smoothly guided to the discharge hole 234 along the descending slope formed by the guide sheet 260 and is discharged from the discharge hole 234. That is, according to the seat device 2 of the present embodiment, it is possible to easily remove an object that enters the gap S21 between the backrest 220 and the rear case 230.

In addition, according to the seat device 2 of the present embodiment, the end portion 261 of the guide sheet 260 on the discharge hole 234 side can be easily detached from the rear housing 230. The back side is integrally molded with an outer cover cloth 221 covering the back 220, and therefore, the guide sheet 260 can be removed together with the outer cover cloth 221. The guide sheet 260 removed in this way can be washed, and the washed guide sheet 260 and a new guide sheet 260 can be easily attached.

In addition, according to the seat device 2 of the present embodiment, since the seat device is very easily attached and detached by the engagement of the hook and loop fastener 270, the operability of attaching and detaching the guide sheet 260 can be improved.

In the seat device 2 of the present embodiment, as described above, the backrest 220 side of the guide sheet 260 is integrally molded with the outer cover cloth 221 of the backrest 220. Therefore, it is not easy to detach the outer cover cloth 221 by a person other than a careful maintenance operator or the like. This facilitates the attachment/detachment of the end portion 261 on the drain hole 234 side by the maintenance operator, and prevents the guide sheet 260 from being easily taken away by a malicious person.

Here, for example, in the second embodiment, the seat device 2 in which two seats are arranged adjacent to each other in the width direction D21 is illustrated as an example of the seat device. However, the seat device is not limited to this, and the number of the arrangement thereof may be arbitrarily set.

In the second embodiment, the following seat device 1 is illustrated as an example of the seat device: the seat 210 can be changed to the reclining state not only in such a manner that the backrest 220 is tilted but also in such a manner that the rear end thereof sinks down and protrudes forward. However, the seat device is not limited to this, and may be configured such that only the backrest is tilted without moving the seat, for example. The structure of the backrest is not particularly limited to the structure connected to the seat, as long as it can be changed to the reclining state, and may be a structure connected to another frame or the like, instead of being connected to the seat.

In the second embodiment, the guide sheet 260 made of cloth is illustrated as an example of the guide sheet. However, the guide sheet is not limited to this, and may be formed in a sheet shape by sewing a plurality of thin tape plates made of a flexible resin sheet, resin, or the like in parallel to each other.

In the second embodiment, the guide sheet 260 is detachably joined to the rear case 230 via the hook and loop fastener 270, as an example of the guide sheet joined to the rear case. However, the guide sheet is not limited to this, and may be, for example, a structure that is joined to the rear case by a button, a hook, a zipper, or the like. However, as described above, the hook and loop fastener which can be attached and detached very easily is employed as the detachable joining structure, and thus the workability of attaching and detaching the guide sheet can be improved.

In the second embodiment, the guide sheet 260 in which the backrest 220 side and the outer cover cloth 221 of the backrest 220 are integrally molded is illustrated as an example of the guide sheet. However, the guide sheet is not limited to this, and may be configured such that the back side is also detachably joined to the back rest. However, as described above, if the back side and the outer cover cloth are integrally molded, it is possible to prevent the guide sheet from being easily taken away by a malicious person.

In the second embodiment, the guide sheet 260 detachably joined to the rear case 230 is illustrated as an example of the guide sheet. However, the guide sheet is not limited to this, and may be bonded to the rear case in a non-detachable state by bonding or the like, for example. However, as described above, if the guide sheet is detachably joined to the rear housing, the guide sheet can be easily washed, and a new product can be easily replaced.

The embodiments described above are merely representative embodiments of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention. It is needless to say that the seat device of the present invention is provided with such a modification, and the modification is included in the scope of the present invention.

Claims

1. A seat device in which a reclining state in which a backrest is tilted backward is freely changed and a plurality of seats are arranged adjacent to each other in the width direction of the seat device,

the seat device is characterized by comprising:

a spacer that is disposed on an upper end side of an adjacent seat side surface of the backrest facing the adjacent seat side and blocks a line of sight of a person from the adjacent seat side surface facing a head of a person who leans back on the backrest; and

a spacer support portion that is fixed to the upper end side of the adjacent seat side surface and supports the spacer so as to be movable in the front-rear direction between a predetermined storage position and a shielding position forward of the storage position,

the separator is provided with: a plate-shaped main body portion arranged along the side surface of the adjacent seat; and a movable rail fixed to a surface of the main body on the side of the adjacent seat and extending in the front-rear direction,

the spacer support portion includes a fixed rail fixed to the upper end side of the side surface of the adjacent seat and extending in the front-rear direction, the movable rail is fitted to the fixed rail so as to be slidable in the front-rear direction,

at least one member of the spacer and the spacer support portion includes a biasing member that biases the other member in the width direction,

the biasing member of the one member is formed of a plate spring extending in a band-like shape in the front-rear direction and having a convex portion at an end portion thereof projecting toward the other member,

a concave portion is provided in the other member, the convex portion is fitted in the concave portion so as to be capable of engaging with and disengaging from the concave portion in accordance with the movement of the spacer,

one of the convex portions and the concave portions is arranged at a plurality of positions including at least positions corresponding to the housing position and the shielding position in the front-rear direction.

2. A seat device in which a reclining state in which a backrest is tilted backward is freely changed and a plurality of seats are arranged adjacent to each other in the width direction of the seat device,

the seat device is characterized by comprising:

the spacer support portion includes a biasing member that biases the movable rail of the spacer in the width direction,

two convex portions protruding toward the partitioning member are provided in the force application member in the front-rear direction,

a holding member that engages with a side of the fixed rail extending in the front-rear direction in a holding manner, and a block that is attached to the surface on the back side of the holding member and extends in the front-rear direction are provided in the movable rail of the spacer, and the block is provided with a recess into which the projection is fitted so as to be engageable with and disengageable from the recess in accordance with movement of the spacer,

the spacer is held at a receiving position where a rear-side convex portion of the two convex portions in the front-rear direction fits in the concave portion, a shielding position where a front-side convex portion of the two convex portions in the front-rear direction fits in the concave portion, and an intermediate position where the rear-side convex portion is separated from a rear end portion of the embracing member and a front end portion of the embracing member abuts against the front-side convex portion.

3. The seating arrangement according to claim 1 or 2,

the spacer support portion includes, in the front-rear direction: a front stopper that restricts forward movement of the spacer beyond the shielding position; and a rear stopper that restricts rearward movement of the partitioning member beyond the storage position.