JP4492514B2 - Vehicle seat canopy device - Google Patents

Description

  The present invention relates to a vehicle seat canopy device. More specifically, the present invention relates to a vehicle seat canopy device in which a canopy body capable of covering the head of an occupant seated on a rear seat of a vehicle is provided so as to protrude from the upper position of the seat to the front of the vehicle.

  In general, a seat used for an infant such as a stroller or a child seat is provided with a canopy device that protects the head of an occupant (infant) from sunlight and dust. For example, Patent Document 1 below discloses a technique in which a child seat is provided with a canopy device. In this disclosed technique, a canopy body (hood) formed of a flexible plastic film is covered with the head of an occupant. Here, the main body of the canopy is stretched over a plurality of skeletal frames formed in an arch shape, and is switched between a use state in which this is expanded in a dome shape and a storage state in which it is folded into a bellows shape. It is supposed to be. Specifically, each skeletal frame is attached so that both ends of the arch shape can be rotated on both sides of the seat. Therefore, the canopy body can be folded into a bellows shape by turning each skeleton frame so as to push it toward the backrest (back of the head) side of the seat. Moreover, the canopy main body can be made into the use condition which expanded the canopy main body by expanding each skeleton frame gathered near the backrest part toward the frontal head side.

JP-T-2001-521466

  However, in the above-described conventional technology, if the canopy device is provided on the vehicle seat itself for a general body occupant, the canopy main body may not be suitably stored. In other words, in order to adapt the canopy device to a general occupant, it is necessary to install the canopy body at a higher position of the seat and to make the shape of the canopy body larger than when the canopy device is provided on the child seat. Therefore, for example, even if the canopy body is configured to be folded in a bellows shape, the canopy body may interfere with the ceiling surface or be bulky and cannot be stored well.

  The present invention was devised to solve the above-described problems, and the problem to be solved by the present invention is that even if a canopy device is provided on the vehicle seat itself for use as a general body occupant, The object is to allow the canopy body to be stored suitably.

In order to solve the above problems, the vehicle seat canopy device of the present invention takes the following means.
In the first aspect of the invention, the rearmost seat of the vehicle has a cargo compartment adjacent to the rearward seat, and the canopy body that can cover the head of the passenger seated on the rearmost seat is the seat. Ru canopy device der of the vehicle seat which is arranged overhanging the upper side position in front of the vehicle. The vehicle seat canopy device includes a storage movement mechanism for storing and moving a canopy body disposed with respect to the rearmost seat in a luggage compartment formed adjacent to the rear portion of the seat, and a canopy body. to chromatic and deployed state of the head domed capable of covering, a contracted state of being contracted displaced in the longitudinal direction of the vehicle from the expanded state of the dome-shaped, and shrinkage deployment mechanism for switching operation to the. Accommodating movement mechanism, Ru four bar linkage der the canopy main body by arranged swing links side by side in the longitudinal direction and supports it swingably connected to the vehicle-side member of the vehicle. The canopy body is divided into a plurality of sections in the vehicle front-rear direction, and the contraction and deployment mechanism is brought into a contracted state by sequentially moving the front-side partition formation site of the canopy body over the rear-side partition formation site. There is . In the storing and moving mechanism, the swing link disposed on the rear side of the vehicle has a longer link length than the swing link disposed on the front side of the vehicle, and the connection position to the member on the vehicle side is set to a low position. in the state where the canopy body is expanded in a state in which the seat back is tilted backward, that have been configured to take a posture that is tilted to the vehicle rear side.
Here, the vehicle-side member is a member that constitutes the seat itself such as a seat back or a component that can support a canopy device such as a vehicle floor.
According to the first aspect of the present invention, the storing and moving mechanism stores and moves the canopy main body, which is disposed so as to protrude from the rearmost seat to the front of the vehicle, in the luggage compartment at the rear of the seat. As a result, the canopy body is retracted to a position that does not bother the passenger seated on the seat. During this movement, the posture angle of the canopy body with respect to each swing link is changed by swinging each swing link with respect to the vehicle-side member. Therefore, it is possible to move the canopy body so as to sink into the back of the seat in a lying posture without taking the standing posture with respect to the seat. Further, the canopy body is stored and moved in a state in which the canopy body is compactly folded by performing the storage movement of the canopy body in a state where the canopy body is switched to the contracted state by the contraction and deployment mechanism. Each swing link is formed so that the swing link disposed on the rear side of the vehicle is longer, and the canopy body is deployed with the rear swing link tilted backward in the seat back. In such a state, by being configured to take a state of being tilted backward, the relationship between the arrangement and the link length is such that the canopy main body can easily sink into a lower position behind the seat.

Next, the second invention, in the first invention described above, shrinkage deployment mechanism is provided so as to be interlocked with the movement in the longitudinal direction of the vehicle canopy main body by accommodating the movement mechanism, housed mobile canopy main body Accordingly, the canopy body is switched to a contracted state.
According to the second aspect of the invention, the canopy body is automatically switched to the contracted state as the canopy body is stored and moved.

The present invention can obtain the following effects by taking the above-described means.
First, according to the first aspect of the present invention, the storage movement mechanism for storing and moving the canopy main body in the luggage compartment at the rear of the seat and the contraction and expansion mechanism for contracting and expanding the canopy main body itself are provided. It is configured as a four-bar linkage mechanism with a long link length set as a swing link, and the rear swing link is tilted rearward to the rear of the vehicle with the canopy body deployed when the seat back is tilted backward. With this configuration, when the canopy body is sunk from the deployed state to the vehicle rear side, the canopy body is moved rearward and downward so as not to interfere with the vehicle ceiling surface according to the rotation of the rear swing link. The canopy body can be stored in a compactly contracted state in the cargo compartment of the vehicle .
Further, according to the second invention, the canopy main body is moved between the retracted position at the rear of the seat and the deployed position at the front of the seat, and the canopy main body is contracted and expanded in a dome shape. Therefore, the canopy body can be stored and unfolded efficiently .

  Embodiments of the best mode for carrying out the present invention will be described below with reference to the drawings.

  First, a canopy device 4 for a vehicle seat 1 according to a first embodiment will be described with reference to FIGS. 1 is a perspective view showing a schematic configuration of the canopy device 4, FIG. 2 is an exploded perspective view of the canopy main body 10, FIG. 3 is a cross-sectional view of the canopy main body 10 in a contracted state, and FIG. 4 is a canopy device. FIG. 5 is a side view showing the storage state of the canopy device 4. 4 and 5, the left direction in the drawing is represented as the vehicle front direction.

The seat 1 of this embodiment is applied as a rear seat disposed at the rearmost part of the vehicle. As shown well in FIG. 1, the seat 1 includes a seat back 2 serving as a backrest portion and a seat cushion 3 serving as a seating portion. The seat back 2 is provided with a canopy device 4 that can be covered from above on the head Ch of the occupant C seated on the seat 1. Further, a luggage compartment T of the vehicle is formed adjacent to the rear portion of the seat 1, that is, the back side portion of the seat back 2.
Here, the canopy device 4 has a dome-shaped canopy body 10. The canopy body 10 can create a partitioned private space for the occupant C by covering the head Ch of the occupant C from above. The canopy body 10 is supported so as to be movable in the front-rear direction of the vehicle with respect to the seat back 2. Specifically, the canopy main body 10 is housed in a use state position that covers the head Ch of the occupant C indicated by a solid line in FIG. 1 and a luggage compartment T formed on the rear side of the seat 1 indicated by a virtual line. It is movable between the storage state position. The use state position of the canopy main body 10 is shown in detail in FIG. 4, and the storage state position is shown in detail in FIG. Further, the canopy main body 10 has a divided structure in which a plurality of sections are formed in the front-rear direction of the vehicle, as well shown in FIG. The canopy main body 10 having this divided structure is arranged in a dome-shaped deployed state that can cover the head Ch of the occupant C shown in FIG. 4 and a dome-shaped deployed state shown in FIG. Switching operation can be performed between the contracted and contracted states. Accordingly, as well shown in FIG. 5, the canopy body 10 can be moved between the use state position and the storage state position in a state where the canopy body 10 is contracted in a compact manner.
Hereinafter, the configuration of the canopy device 4 will be described in detail.

That is, the canopy device 4 includes a dome-shaped canopy main body 10, a storage movement mechanism 20, and a contraction and deployment mechanism 30, as well shown in FIG. 4.
First, as can be seen in FIG. 2, the canopy body 10 is divided into a plurality of compartments in the vehicle front-rear direction, and includes a smoke shield 12, a first compartment formation portion 13, a second compartment formation portion 14, Have
Specifically, the smoke shield 12 is disposed at the front side portion of the canopy body 10. The smoke shield 12 is made of polycarbonate, and is smoked so that the canopy body 10 can be easily seen through from the inside to the outside and hardly seen through from the outside. As a result, as well shown in FIG. 4, even when the canopy body 10 is covered by the head Ch of the occupant C, the field of view of the occupant C to the outside of the front can be secured.
Next, the first section forming portion 13 is disposed at the central portion of the canopy body 10 as well shown in FIG. Further, the second partition forming portion 14 is disposed on the rear surface side portion of the canopy main body 10. The outer shape of each of the first partition forming portion 13 and the second partition forming portion 14 is formed of a synthetic resin. In addition, the first partition forming portion 13 and the second partition forming portion 14 are pin-coupled together with the smoke shield 12 by overlapping the mounting holes 12a, 13a, 14a formed respectively. Accordingly, as well shown in FIG. 4, the smoke shield 12, the first partition forming portion 13, and the second partition forming portion 14 can be rotated relative to each other with the pin coupling position as the rotation center Rc. ing.
Here, the smoke shield 12 is formed slightly smaller than the outer shape of the first section forming portion 13 as well shown in FIG. Further, the first partition forming portion 13 is formed to be slightly smaller than the outer shape of the second partition forming portion 14. Therefore, as well shown in FIG. 4, when the smoke shield 12 is rotated so as to be pushed around the rotation center Rc to the vehicle rear side, the smoke shield 12 positioned on the front side is positioned in the first section. It is stored so as to be superimposed inside the formation site 13. Further, when the first partition forming portion 13 is rotated so as to be pushed to the vehicle rear side around the rotation center Rc, the first partition forming portion 13 positioned on the front side is positioned on the rear side. Are stored in such a manner that they are superimposed on each other. That is, by performing the above operation, as shown in FIG. 3, the smoke shield 12 and the first partition forming portion 13 are sequentially moved from the front side to the rear side in the second partition forming portion 14. The storage state can be a superposed state. Thereby, as shown by the phantom line in FIG. 5, the canopy body 10 can be brought into a contracted state in which the canopy body 10 is contracted and displaced from the dome-shaped deployed state toward the rear side of the vehicle.
2, the smoke shield 12, the first section forming portion 13, and the second section forming portion 14 have a relative rotation around the rotation center Rc at the center in the vehicle width direction. Slide rails (protruding rails 12b and 14b and concave rails 13b and 13c) are integrally provided. This slide rail is formed by inserting and fitting a rail member having a convex cross section (protruding rails 12b and 14b) extending in the longitudinal direction of the vehicle and a rail member having a concave cross section (concave rails 13b and 13c). It is configured to slide in the front-rear direction. Specifically, on the outer side surface (front side surface) of the smoke shield 12, a protruding rail 12b extending in the front-rear direction is disposed over the entire area. And the concave rail 13b inserted and fitted by the said convex rail 12b is arrange | positioned by the front-end part at the inner surface (back side) of the 1st division formation site | part 13. As shown in FIG. Further, on the inner side surface of the second section forming portion 14, a protruding rail 14b extending in the front-rear direction is disposed over the entire area. And the concave rail 13c inserted and fitted by the said convex rail 14b is arrange | positioned by the outer end surface of the 1st division formation site | part 13 at the rear-end part. The protruding rails 12b and 14b are provided with stoppers (not shown) that prevent the insertion fitting with the concave rails 13b and 13c from being removed. Thereby, the shape of the canopy main body 10 is maintained by restricting the rotation of each partition forming portion in the deployment direction at the deployed state position shown in FIG.

Next, the storage movement mechanism 20 includes swing links 21 and 22, a drive motor Mr, a drive pulley P1, a driven pulley P2, and a transmission belt V, as well shown in FIG. Here, the drive motor Mr, the drive pulley P 1, the driven pulley P 2, and the transmission belt V are disposed inside the seat back 2.
Specifically, the swing links 21 and 22 are arranged side by side in the front-rear direction of the vehicle, and end portions thereof are pivotally supported by the second section forming portion 14 and the seat back 2 of the canopy body 10 so as to be rotatable. ing. Here, the swing link 21 is disposed on the front side of the vehicle, and the swing link 22 is disposed on the rear side of the vehicle. The swing links 21 and 22 are provided at both side positions in the vehicle width direction, and support the second partition forming portion 14 in a pair of left and right. Specifically, as shown in FIG. 2, a support frame F for rotatably connecting and supporting the upper ends of the swing links 21 and 22 is provided on the inner surface of the second partition forming portion 14. It is fixed integrally. As shown well in FIG. 4, support brackets B are integrally fixed to both side portions of the seat back 2 so that the lower ends of the swing links 21 and 22 are rotatably connected and supported. Yes. Then, both ends of the swing links 21 and 22 are pivotally supported with respect to the support frame F and the support bracket B, respectively. Here, the swing link 22 disposed on the rear side of the vehicle has a longer link length than the swing link 22 disposed on the front side of the vehicle, and the connection position with respect to the seat back 2 is set to a low position. Further, as shown in FIG. 4, the swing link 22 having a long link length is arranged so as to be inclined to the rear side of the vehicle when the canopy body 10 is deployed.
According to the four-joint link mechanism configured as described above, the canopy body 10 can be housed and moved at a compact posture angle by swinging the swing links 21 and 22 toward the rear side of the vehicle with respect to the seat back 2. it can. That is, when the swing links 21 and 22 are swung clockwise from the unfolded use position shown in FIG. 4, the canopy body 10 narrows the posture angle of the vehicle front side with respect to the swing links 21 and 22. However, it sinks behind the seat 1. Accordingly, the canopy main body 10 can be stored and moved to the storage state position shown in FIG. 5 while maintaining a compact posture state without causing the canopy main body 10 to largely project and move above the seat 1.
Next, the drive motor Mr rotates forward / reversely in accordance with a switching operation of an operation switch (not shown) installed at an appropriate position of the vehicle. The driving pulley P1 transmits the rotational force input by the driving motor Mr to the driven pulley P2 via the transmission belt V. The driven pulley P2 is connected or integrally fixed to the swing link 22 disposed on the rear side of the vehicle so as to be able to transmit the rotational force, and the swing link 22 is rotated around the rotational center Rr by the input rotational force. Rotate around.

Next, the contraction and deployment mechanism 30 is provided in the canopy body 10 and has a drive motor Mc, a spring member S, and a cable K, as well shown in FIG.
Specifically, the drive motor Mc is disposed at the rear end portion of the canopy body 10 and rotates forward / reversely according to the switching operation of the operation switch (not shown) described above. That is, the drive motor Mc is arranged to be operable in conjunction with the drive motor Mr (see FIG. 4) of the storage movement mechanism 20 described above by switching operation of the operation switch.
Next, the spring member S is disposed between the smoke shield 12, which is the partition formation portion, the first partition formation portion 13, and the second partition formation portion 14, in order to bias the canopy body 10 toward the deployed state. It is provided at each pin coupling position. This spring member S is a winding spring, and rotates and biases the smoke shield 12 in a direction in which the smoke shield 12 is deployed and moved with respect to the first section forming portion 13, that is, in a counterclockwise direction in FIG. Further, the first partition forming portion 13 is rotationally biased in a direction in which the first partition forming portion 13 is deployed and moved with respect to the second partition forming portion 14.
Next, as well shown in FIG. 2, the cable K is arranged along the inner surface of the canopy body 10 in the front-rear direction of the vehicle. The end of the cable K is hooked on the hooking member 12c provided on the smoke shield 12, and the other end is hooked on the winding member J rotated by the drive motor Mc described above. Yes. As a result, the cable K is wound up or drawn out around the winding member J as the drive motor Mc rotates forward and backward. Therefore, by the operation of winding up the cable K, the smoke shield 12 and the first partition forming portion 13 are rotated in the clockwise direction against the bias of the spring member S from the deployed state shown in FIG. It is possible to switch to the contracted state shown by the phantom line in FIG. That is, the smoke shield 12 and the first partition forming portion 13 can be stored inside the second partition forming portion 14. Further, the smoke shield 12 and the first partition forming portion 13 are moved in the counterclockwise direction in accordance with the bias of the spring member S from the contracted state shown by the phantom line in FIG. Can be switched to the unfolded state shown in FIG. In other words, the smoke shield 12 and the first partition formation site 13 can be unfolded forward from the second partition formation site 14.
Note that the drive motor Mc (see FIG. 2) operates in an operation direction (in which the canopy body 10 is switched to a contracted state) when the canopy body 10 is moved and moved (moved clockwise in FIG. 4) by the storage movement mechanism 20. For example, forward rotation). Then, when the canopy body 10 is deployed and moved toward the use state position (moved counterclockwise in FIG. 5), the canopy body 10 is rotated in an operation direction (for example, reverse rotation) for switching to the deployed state.

Subsequently, a method of using the present embodiment will be described.
That is, as well shown in FIG. 4, the canopy body 10 is in the deployed state at the use state position covered by the head Ch of the occupant C. Therefore, from this state, in order to store and move the canopy main body 10, an operation switch (not shown) is operated to operate the storage moving mechanism 20 and the contraction and deployment mechanism 30. As a result, the canopy body 10 is switched to the contracted state shown by the phantom line in FIG. 5 and moves around the rotation center Rr toward the rear of the vehicle. At this time, the canopy body 10 is switched to a compact shape by the contraction and deployment mechanism 30 and is stored and moved at a compact posture angle by the movement trajectory of the four-bar link in the storage and movement mechanism 20. Thereby, the canopy main body 10 can be accommodated and moved without interfering with the ceiling surface D of the vehicle located on the upper surface of the seat 1. And the canopy main body 10 is accommodated in the luggage compartment T formed in the back side position of the sheet | seat 1, as shown by the continuous line of FIG.
The canopy main body 10 moved to the storage state position is shown in FIG. 4 by operating the storage movement mechanism 20 and the contraction / deployment mechanism 30 in the opposite direction by operating an operation switch (not shown). It can be moved to the use state position and can be switched to the unfolded state. Also in this case, the canopy main body 10 is switched to a compact shape state by the contraction and deployment mechanism 30 and is deployed and moved at a compact posture angle by the movement trajectory of the four-bar link in the storage movement mechanism 20.

  Thus, according to the canopy device 4 for the vehicle seat 1 of the present embodiment, the canopy main body 10 that is provided protruding from the upper side position of the seat 1 to the front of the vehicle is switched to the contracted state to be in a compact shape state. Then, it is possible to sink into the rear of the seat 1 in a lying posture without being in a standing posture with respect to the seat 1 and to be stored and moved in the cargo compartment T of the vehicle. Further, by adjusting the link length and arrangement of the swing links 21 and 22 in the storage movement mechanism 20, the canopy body 10 can be moved in a posture state that does not interfere with the ceiling surface D of the vehicle, or the storage state position is compact. It can be moved to fit in Thereby, the canopy main body 10 at the time of non-use can be suitably accommodated in the position where it does not become troublesome for the seated passenger C. Furthermore, even if the canopy main body 10 is covered with the head Ch of the occupant C, the smoke shield 12 can ensure visibility of the occupant C to the outside. Furthermore, by providing the storage movement mechanism 20 with respect to the seat back 2, the canopy body 10 can be moved relative to the seat back 2. Therefore, for example, even when the seat 1 is slid in the front-rear direction of the vehicle or the seat back 2 is reclined and rotated, the canopy body 10 is used in a use state position that matches the seating posture of the occupant C. It becomes easy to move to the storage state position. Further, since the storage movement mechanism 20 and the contraction and deployment mechanism 30 can be interlocked, the storage / deployment operation of the canopy body 10 can be easily performed according to a predetermined storage mode.

Although the embodiment of the present invention has been described with one example, the present invention can be implemented in various forms in addition to the above example.
For example, the storage movement mechanism may support the canopy body so as to be movable with respect to a member separate from the seat such as a vehicle floor. However, in this case, it should be noted that the relative position of the canopy body with respect to the occupant changes as the seat slides in the front-rear direction of the vehicle or the seat back rotates reclining.
In addition, the smoke shield may be formed on the side surface portion of the canopy body or may be formed on the entire surface. However, in this case, it is preferable to ensure the rigidity of the canopy body by providing a skeleton frame separately.
Moreover, you may switch to a contracted state in the aspect which superposed | stacked the canopy main body on the bellows shape by a contraction expansion | deployment mechanism.
Moreover, the structure which guides shrinkage | contraction and expansion | deployment rotation of each division formation part of a canopy main body is not limited to the slide rail shown in the said Example. Moreover, you may make it ensure the structure to guide said by the pin coupling which connects each division formation part so that relative rotation is possible.
In addition, the operation timing of the storage movement mechanism and the contraction / deployment mechanism is appropriately determined according to the purpose of use of the canopy device and the size of the interior space in which the canopy body can be moved. For example, when the interior space in which the canopy body can be moved is small, the canopy body may be switched to a contracted state and put into a compact shape prior to storing and moving the canopy body. In addition, when the interior space in which the canopy body can be moved is widely secured, the storage time of the canopy body can be shortened by simultaneously moving the canopy body and switching to the contracted state. it can.
Further, the link length and arrangement of the four-barrel link in the storage movement mechanism may be determined as appropriate according to the purpose of use of the canopy device and the size of the interior space in which the canopy body can be moved.

It is a perspective view showing a schematic structure of a canopy device. It is a disassembled perspective view of a canopy main body. It is sectional drawing which represented the shrinkage | contraction state of the canopy main body in front view. It is a side view showing the use condition of a canopy apparatus. It is a side view showing the storage state of the canopy device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Seat 2 Seat back 3 Seat cushion 4 Canopy apparatus 10 Canopy main body 12 Smoke shield 12a Mounting hole 12b Projection rail 12c Latching member 13 1st division formation site 13a Installation hole 13b Concave rail 13c Concave rail 14 Formation of 2nd division Part 14a Mounting hole 14b Convex rail 20 Storage movement mechanism 21 Oscillation link 22 Oscillation link 30 Shrinkage deployment mechanism Mr drive motor Mc drive motor J winding member P1 drive pulley P2 driven pulley V transmission belt T luggage compartment C occupant Ch head Part Rr Rotation center Rc Rotation center B Support bracket F Support frame S Spring member K Cable D Ceiling surface

Claims (2)

The rearmost seat of the vehicle is formed with a cargo compartment adjacent to the rear portion thereof, and the canopy body that can cover the head of an occupant seated on the rearmost seat is positioned forward of the vehicle from the upper position of the seat. A canopy device for a vehicle seat disposed so as to overhang,
A storage movement mechanism for storing and moving the canopy body disposed with respect to the rearmost sheet in a luggage compartment formed adjacent to a rear portion of the sheet;
A contraction and deployment mechanism for switching the canopy main body between a dome-shaped deployment state capable of covering the head of the occupant and a contracted state in which the dome-shaped deployment state is contracted and displaced in the front-rear direction of the vehicle; Have
The storing and moving mechanism is a four-bar linkage mechanism that supports the canopy body so as to be swingable with respect to the vehicle-side member by swing links arranged side by side in the vehicle front-rear direction.
The canopy main body is divided into a plurality of sections in the vehicle front-rear direction, and the contraction and deployment mechanism sequentially moves the front-side partition formation site of the canopy main body onto the rear-side partition formation site. made things der is,
In the storing and moving mechanism, the swing link disposed on the rear side of the vehicle has a longer link length than the swing link disposed on the front side of the vehicle, and the connection position with respect to the member on the vehicle side is set to a low position. The vehicle seat canopy device is configured to assume a posture state in which the seat back is tilted rearward and the canopy main body is unfolded while the seat back is tilted rearward . The vehicle seat canopy device according to claim 1,
The shrinkage deployment mechanism, the housing is provided to be interlocked by the moving mechanism to move back and forth direction of the vehicle of the canopy main body, switch between the the canopy main body with the housing movement of the canopy main body contracted state A canopy device for a vehicle seat.

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