JP3946926B2 - Child seat fixing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a child seat fixing device for fixing a child seat on a vehicle seat.
[0002]
[Prior art and problems to be solved by the invention]
Conventional child seat fixing devices include a seat belt method in which a base is fixed on a vehicle seat using a three-point or two-point seat belt device, and then a child seat is mounted on the base. There is a connector method in which the rear end of a long connector disposed on both sides of the base is connected to a preset anchor member near the lower end of the seat back of the seat, and then the child seat is attached to the base. is there.
[0003]
In the case of the connector system, there is an advantage that the child seat can be easily mounted on the vehicle seat, but the connector system is still a new technology, so depending on the vehicle model, the vehicle seat is not a connector system specification. The anchor member may not be set near the lower end of the seat back of the seat for use.
[0004]
Under such a production situation, if a child seat fixing device dedicated for a connector system is produced, it cannot be applied to a vehicle type equipped with a seat for a vehicle of a seat belt system specification, and lacks versatility.
[0005]
In view of the above facts, an object of the present invention is to provide a child seat fixing device that can be applied to both a connector type vehicle seat and a seat belt type vehicle seat.
[0007]
[Means for Solving the Problems]
The child seat fixing device according to the first aspect of the present invention includes a restraining portion that is placed on the vehicle seat and fixed on the vehicle seat using the webbing of the seat belt device, and further includes a child seat. A base provided on both sides with roller insertion grooves serving as a track for the provided roller, a long connector provided on both sides of the base and arranged in the longitudinal direction of the vehicle front-rear direction, Locking means provided on the rear end side and engageable with an anchor member set in advance on the vehicle seat, and provided so as to be able to advance and retreat into the roller insertion groove of the base and enter the roller insertion groove Includes a release member that prevents the roller from being inserted into the roller insertion groove and allows the roller to be inserted into the roller insertion groove when retracted from the roller insertion groove. And a release means for releasing the engagement state between the lock means and the anchor member by performing a predetermined release operation using the release member, and provided in the base and capable of sliding the connector in the vehicle longitudinal direction. And a connector slide mechanism that brings the connector to a connector use position where the connector protrudes from the base to the vehicle rear side or a connector storage position where the connector is stored in the base according to the specifications of the vehicle seat, and release When the member and the locking means are connected, and the locking means is locked when the connector is used, the release member is retracted from the roller insertion groove, and the locking means is released when the connector is used The connecting means for allowing the release member to enter the roller insertion groove, the connector and the release member are connected, and the connector is stored. It is characterized and biasing means for biasing the releasing member in a direction to retreat from the roller insertion groove, in that it has at.
[0011]
According to the first aspect of the present invention, the child seat is fixed on the vehicle seat in the following manner according to the specification of the vehicle seat.
[0012]
When the anchor member is set in advance in the vehicle seat, the child seat is fixed on the vehicle seat by the connector method. Specifically, first, the connector is moved to the connector use position using the connector slide mechanism. Next, the base is placed on the vehicle seat. Next, the locking means provided on the rear end side of the connector and the anchor member are engaged to obtain a locked state. Thereby, the base is fixed on the vehicle seat. Further, when the locking means is locked, the release member is retracted from the roller insertion groove of the base by the connecting means. For this reason, the roller provided in the child seat can be inserted into the roller insertion groove of the base. Thereby, a child seat can be fixed on a vehicle seat via a base and a connector.
[0013]
In addition, when removing a child seat from a vehicle seat, the roller of a child seat is first extracted from the roller insertion groove of the base, and the child seat is removed from the base. Next, by performing a predetermined release operation using the release member, the engagement state between the locking means provided on the connector side and the anchor member provided on the vehicle seat side is released. Thereby, a base can be removed from a vehicle seat.
[0014]
In addition, due to incomplete fixing operation by the user, a situation occurs in which the locking means provided on the rear end side of the connector and the anchor member provided on the vehicle seat side are not completely engaged. Is also possible. In such a case, since the locking means is still in the released state, the releasing member is inserted into the roller insertion groove of the base by the connecting means. Therefore, the user cannot insert the child seat roller into the roller insertion groove of the base. Accordingly, the child seat is prevented from being attached to the base, and the user can be informed that the base fixing operation is incomplete.
[0015]
On the other hand, when the anchor member is not set in advance in the vehicle seat, the child seat is fixed on the vehicle seat by the seat belt method. Specifically, first, the connector is moved to the connector storage position using the connector slide mechanism. Next, the base is placed on the vehicle seat. Next, the base is fixed on the vehicle seat, for example, by inserting the webbing of the seat belt device through the restraining portion of the base. Thereby, the base is fixed on the vehicle seat.
[0016]
Here, when the connector is stored in the base, the locking means of the connector is naturally unlocked, so that the release member is inserted into the roller insertion groove via the coupling means in the mode. (That is, a state where the child seat is inhibited from being attached to the base). However, in the present invention, the connector and the release member are connected by the urging means, and the urging force is applied to the release member in the direction of retracting from the roller insertion groove when the connector is retracted. It is held at a position retracted from the groove. Accordingly, the release member does not hinder insertion of the child seat roller into the roller insertion groove.
[0017]
As described above, the roller provided on the child seat can be inserted into the roller insertion groove of the base, and the child seat can be fixed on the vehicle seat via the base and the seat belt device.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the child seat fixing apparatus 10 according to an embodiment of the present invention will be described with reference to FIGS.
[0019]
[Schematic structure of child seat and vehicle seat]
FIG. 8 is a schematic perspective view showing the child seat fixing device 10 according to the present embodiment in a state separated from the child seat 12. FIG. 9 shows a schematic side view of the child seat 12 fixed to the vehicle seat 14 by the connector method. FIG. 10 is a schematic side view of the child seat 12 fixed to the vehicle seat 16 by the seat belt method. First, the configuration of the child seat 12 and the vehicle seats 14 and 16 serving as the fixing counterparts will be briefly described with reference to these drawings.
[0020]
As shown in FIGS. 8 to 10, the child seat 12 includes a seat portion 18, a backrest portion 20, a headrest portion 22, a side support portion 24, and the like. Note that which part of these elements is integrated with which part or which part is movable with respect to which part is appropriately selected according to the specifications of the child seat. For example, the headrest part 22 may be configured to be movable up and down with respect to the backrest part 20, or the angle of the side support part 24 may be configured to be changeable.
[0021]
A crotch belt 28 having a buckle device 26 at the tip is disposed on the front end side of the seat 18 of the child seat 12 described above. A pair of child restraining belts 32 through which tongue plates 30 are inserted are disposed on the upper end side of the backrest 20 of the child seat 12. Note that the child seated on the child seat 12 is restrained by the child restraining belt 32 by engaging the tongue plate 30 with the buckle device 26.
[0022]
In addition, a pair of upper and lower support rollers 34 and 36 are disposed on the back side of the child seat 12 described above. Furthermore, a holding mechanism for holding the child seat 12 at a predetermined reclining angle with respect to a seat base 52 described later is disposed on the rear surface side of the child seat 12.
[0023]
On the other hand, as shown in FIGS. 9 and 10, the vehicle seats 14 and 16 that are fixed counterparts of the child seat 12 include a seat cushion 38 on which an occupant is seated, and a seat back 40 that is a backrest when the occupant is seated. It is comprised including. As shown in FIG. 10, a three-point or two-point seat belt device 42 is disposed on the vehicle seats 14 and 16. Note that the seat belt device 42 is not shown in the vehicle seat 14 shown in FIG. The seat belt device 42 includes an occupant restraining webbing 44, and a tongue base 46 inserted through the webbing 44 is engaged with the buckle device 48, whereby a seat base 52 described later is fixed to the vehicle seat 16. It has become so. The configuration so far is the same for any of the vehicle seats 14 and 16.
[0024]
Further, in the case of the vehicle seat 14 shown in FIG. 9, a pair of anchor members 50 are set near the boundary between the rear end portion of the seat cushion 38 and the lower end portion of the seat back 40 in the vehicle seat 14. ing. The anchor member 50 has a shape such that a high-strength rod-like member is bent so as to have a U-shape in plan view.
[0025]
[Configuration of child seat fixing device]
Next, the structure of the child seat fixing device 10 for fixing the child seat 12 to the vehicle seat 14 will be described.
[0026]
The child seat fixing device 10 is mounted on a vehicle seat 14 and connected to a seat base 52 on which the child seat 12 is mounted, and a pair of anchor members 50 set in advance on the vehicle seat 14 side. The connecting device 54 is configured as a main part, and will be described below in this order.
[0027]
<Configuration of seat base>
As shown in FIGS. 1 to 3 and FIGS. 8 to 10, the seat base 52 has a curved shape in a side view, and a pair of rail portions 56 are formed on both sides. In the vicinity of the middle portion of the rail portion 56 in the longitudinal direction (closer to the top), a recess 58 is formed that is used when the seat base 52 is fixed to the vehicle seat 16 using the seat belt device 42.
[0028]
In addition, roller insertion grooves 60 and 62 serving as tracks of a pair of upper and lower support rollers 34 and 36 of the child seat 12 are formed in the inner side of each rail portion 56. Most of the roller insertion grooves 60 and 62 are configured to have a top wall portion 56A and a bottom wall portion 56B of the rail portion 56 at the top and bottom, but as shown in FIGS. The vicinity does not have the top wall portion 56A and the bottom wall portion 56B. As a result, a roller insertion opening 64 is formed on the top wall portion 56A side in the vicinity of the longitudinal middle portion of the rail portion 56, and a release lever entry opening 66 is formed on the bottom wall portion 56B side. ing. A roller insertion opening 68 (see FIG. 8) for inserting the upper support roller 36 is formed at the upper end of the upper roller insertion groove 62. Further, a front side mounting seat 70 and a rear side mounting seat 72 each having an internal thread formed on the shaft core portion are integrally formed on the back side of the front and rear portions of the release lever entry opening 66 in the bottom wall portion 56B. ing.
[0029]
<Configuration of coupling device>
As shown in FIGS. 1 to 10, the connecting devices 54 for connecting the seat base 52 to the anchor member 50 of the vehicle seat 14 are arranged in the vicinity of the lower end portions on both sides of the seat base 52. Two elongated connectors 74 are configured as main parts. The connector 74 includes a high-strength connector base 76 (see FIGS. 1, 5, 6, etc.) that is formed in a U-shaped cross-section with the upper side open, and is arranged with the vehicle longitudinal direction as the longitudinal direction. A long groove-like engagement groove 78 (see FIGS. 1 to 3) is formed in parallel at the rear end portions of both side walls of the connector base 76, and the distal end portion of the anchor member 50 is inserted into these engagement grooves 78. (A portion along the width direction of the vehicle seat 14) 50A is engaged.
[0030]
As shown in FIGS. 1 to 3, a latch 82 that is rotatable around the support shaft 80 is disposed above the closed end of the engagement groove 78 of the connector base 76. The latch 82 is formed in a substantially F shape, and includes a pair of engaging pieces 82A and 82B extending substantially in parallel to each other, and a stopper piece extending perpendicularly to the engaging pieces 82A and 82B. 82C. A lock groove 84 into which the tip 50A of the anchor member 50 can be inserted is formed between the pair of engagement pieces 82A and 82B, and a substantially triangular engagement recess is formed at the lower edge of the one engagement piece 82A. 86 is formed.
[0031]
Further, a first spring locking portion 88 is formed by cutting and raising on the rear end side of one side wall of the connector base 76, and the first spring locking portion 88 is a first spring constituted by a compression coil spring. An eject spring 90 is inserted and locked. The front end of the first eject spring 90 is abutted and locked in the thin eject cover 92, and always presses and urges the eject cover 92 rearward. Furthermore, the tip end portion of the eject cover 92 is engaged with an engagement recess 86 (see FIG. 1) of the latch 82 when released.
[0032]
Further, a second spring locking portion 94 is formed by cutting and raising near the middle portion of one side wall of the connector base 76. The second spring locking portion 94 is a second spring constituted by a compression coil spring. An eject spring 96 is inserted and locked. The distal end portion of the second eject spring 96 is inserted and locked to the lower portion on the front end side of the stopper holder 98 having a thickness about the height of the connector base 76, and always presses and urges the stopper holder 98 rearward. ing. On the rear end side of the stopper holder 98, a stopper accommodating portion 100 formed in an elongated rectangular shape in a side view is formed. A rectangular flat plate-like stopper 102 is held in the stopper accommodating portion 100 in plan view. Both end portions of the stopper 102 in the width direction are inserted into stopper guide holes 104 formed on both side walls of the connector base 76. The front-rear dimension (stroke) of the stopper guide hole 104 is set to about twice the front-rear width of the stopper 102.
[0033]
Furthermore, a wire locking groove 106 cut out from the upper surface side is formed in the upper part on the front end side of the stopper holder 98. One end 108 </ b> A of the wire 108 is inserted and locked in the wire locking groove 106. The other side wall of the connector base 76 is formed with a flange 110 having a circular hole at the center, and a wire guide 112 is attached to the circular hole of the flange 110.
[0034]
Note that the rear portion of the connector 74 in which the functional parts are disposed as described above is covered with a connector cover 114.
[0035]
On the other hand, as shown in FIGS. 1 to 5, there are a front mounting seat 70 and a rear seat at a predetermined position of the bottom wall portion 56 </ b> B of the pair of rail portions 56 in the seat base 52 (front and back surfaces of the release lever entry opening 66). The side mounting seat 72 is formed as described above, but a bracket 116 having a predetermined shape is mounted on the front mounting seat 70 and the rear mounting seat 72. The bracket 116 includes a plate-like bottom wall portion 116A, a substantially triangular side wall portion 116B formed by bending on one side portion of the bottom wall portion 116A, and a front end portion of the side wall portion 116B by bending. The formed hook-shaped front wall portion 116C and the rear wall portion 116D formed by bending the rear end portion of the bottom wall portion 116A by a predetermined angle, and the front wall portion 116C is a front-side mounting portion. The rear wall 116 </ b> D is fixed to the rear mounting seat 72.
[0036]
A release lever 118 formed in a substantially triangular shape in a side view is pivotally supported on the side wall 116B of the bracket 116 so as to be swingable around the support shaft 120. The distal end 118A side of the release lever 118 is thickened, and the proximal end 118B side is thinned (see FIG. 4). The thick leading end portion 118A is allowed to enter the roller insertion groove 60 from the release lever entry opening 66, and is thickened so as to block the insertion space of the support roller 34 below the child seat 12. Yes. A slit-like concave groove 122 is formed in the thin base end portion 118 </ b> B, and the other end portion 108 </ b> B of the wire 108 is inserted and locked in the concave groove 122. Further, a hook portion 124 is formed at the lower end of the base end portion 118 </ b> B, and one end portion of the tension coil spring 126 is locked to the hook portion 124. The base end portion 118B is thinned to avoid interference with the other end portion 108B of these wires 108, the tension coil spring 126, and the like.
[0037]
A wire guide 128 is attached to the front wall portion 116 </ b> C of the bracket 116, and the vicinity of the other end portion 108 </ b> B of the wire 108 is inserted into the wire guide 128. The release lever 118 and the stopper holder 98 of the connector 74 are connected to each other by the wire 108. The other end of the tension coil spring 126 is locked in a spring locking hole 130 formed in the front wall of the connector base 76. As a result, the lower end portion of the release lever 118 and the front wall of the connector base 76 are connected to each other.
[0038]
<Configuration of connector slide mechanism>
As shown in FIGS. 5 to 7 and 9 to 10, the pair of left and right connectors 74 described above can be slid in the longitudinal direction of the base by a connector slide mechanism 132. The position of the connector 74 shown in FIGS. 2 and 9 is the connector use position, the position of the connector 74 shown in FIGS. 3 and 10 is the connector storage position, and between these connector use position and connector storage position. Is the movement stroke of the connector 74 of this embodiment.
[0039]
More specifically, as shown in FIG. 5, a long rail 134 is disposed in the center of the front portion of the seat base 52. The rail 134 has a length that is about half of the length of the seat base 52 in the front-rear direction, and a bulging portion 134A that bulges in the plate thickness direction is integrally formed at an intermediate portion in the width direction. A plurality of engagement holes 136 are formed at predetermined intervals along the longitudinal direction of the bulging portion 134A of the rail 134. Furthermore, the surface side of the bulging portion 134A of the rail 134 is covered with a sheet 138 having a predetermined shape (see FIGS. 6 and 7). A plurality of fitting portions 140 that are fitted into the plurality of engagement holes 136 are integrally formed on the sheet 138. As shown in FIG. 7, the rear end side of each fitting portion 140 is configured as a vertical surface 140A, whereas the front end side is configured as an inclined surface 140B. Furthermore, the surface side of the rail 134 is covered with a shoe 142 (see FIG. 6).
[0040]
Returning to FIG. 5, the front end flange portion 134 </ b> B and the rear end flange portion 134 </ b> C are integrally formed at the front and rear ends of the rail 134 with the base width direction as the longitudinal direction and used as a mounting seat. Immediately above the front end flange portion 134B and the rear end flange portion 134C in the seat base 52, anchor plates (not shown) having substantially the same shape as these flange portions are respectively arranged. Weld bolts are fixed downward at both ends of the anchor plate in the longitudinal direction. These weld bolts are inserted into cylindrical bosses (not shown) formed in the seat base 52, and further penetrate the front end flange portion 134B and the rear end flange portion 134C, respectively, and nuts 144 are respectively provided at the through end portions. By being screwed together, the rail 134 is supported by a pair of anchor plates.
[0041]
The left and right connectors 74 are slidably supported on the rail 134. Specifically, a bent flange portion 146 is formed at the front portion of the inner side wall of each connector base 76 so as to protrude toward the rail 134. On the lower surface of the flange portion 146, an end portion of a substantially rectangular flat plate-like upper slider 148 is fixed by a weld bolt 150 and a nut 152. Further, a lower slider 154 is fixed to the lower surface of the intermediate portion in the width direction of the upper slider 148 by a bolt 156 and a weld nut 158. A rail 134 is sandwiched between the upper slider 148 and the lower slider 154. Thus, the pair of left and right connectors 74 can slide along the rail 134 via the upper slider 148 and the lower slider 154.
[0042]
A slide piece 160 and a piece guide 162 are disposed on the rail 134 of the upper slider 148. As shown in FIG. 7, the slide piece 160 has a substantially wedge shape in a side view, and extends in parallel with each other from the block-shaped pressing portion 160 </ b> A and the predetermined range of the upper end portion. And a pair of leg portions 160B. The tip of each leg 160B is formed in a bowl shape. The piece guide 162 has a predetermined shape that covers the tip end side of the leg portion 160 </ b> B of the slide piece 160, and is fixed to the upper slider 148 with a clip 164. Further, an adjuster pin 166 having an axial direction perpendicular to the plane of the rail 134 is accommodated inside the piece guide 162. A pair of guide protrusions 168 are formed on the peripheral surface of the upper end portion of the adjuster pin 166 and are locked to the distal end portions of the pair of leg portions 160B of the slide piece 160. Further, the pair of guide protrusions 168 of the adjuster pins 166 are slidably inserted into a pair of parallel guide grooves 170 formed on the inner peripheral surface of the piece guide 162. Further, an intermediate portion of the adjuster pin 166 in the axial direction is inserted into a boss 172 formed on the upper slider 148, and a lower end portion of the adjuster pin 166 is engaged and disengaged into the engagement hole 136 of the rail 134. Note that a return spring (not shown) is disposed in the piece guide 162 and constantly presses and biases the adjuster pin 166 toward the engagement hole 136 side.
[0043]
As described above, when the connector 74 is slid along the rail 134, the adjuster pin 166 is selectively engaged into the engagement hole 136 of the rail 134 by the urging force of the return spring, and the engagement state is released. Is configured to press the pressing portion 160A of the slide piece 160 in the direction of the arrow P and slide the adjuster pin 166 relatively upward.
[0044]
Next, the operation and effect of this embodiment will be described.
[0045]
When the anchor member 50 fixes the child seat 12 to the vehicle seat 14 set in advance, as an example, the anchor member 50 is fixed in the following manner.
[0046]
First, the pair of anchor members 50 are taken out from the vicinity of the boundary between the rear end portion of the seat cushion 38 of the vehicle seat 14 and the lower end portion of the seat back 40 and are made ready for use. In parallel with this, as shown in FIG. 1, the pair of connectors 74 are pulled out to the use position in advance from both side portions of the seat base 52. Although the use position of the connector 74 differs slightly depending on the vehicle type, the connector 74 is adjusted to an optimum position by moving the connector 74 forward and backward with respect to the seat base 52 using the connector slide mechanism 132.
[0047]
In the above state, the tip of the eject cover 92 that has received the urging force of the first eject spring 90 is engaged with the engagement recess 86 of the one engagement piece 82A of the latch 82. Held in the unlocked position. Accordingly, the connector 74 is unlocked with respect to the anchor member 50. At this time, the stopper holder 98 is slid to the front side against the urging force of the second eject spring 96 by the stopper piece 82C of the latch 82. Therefore, the stopper 102 is also moved to the front side in the stopper accommodating portion 100. Is retained. Further, the release lever 118 connected to the stopper holder 98 via the wire 108 receives the urging force of the tension coil spring 126 and swings counterclockwise around the support shaft 120 and passes through the release lever entry opening 66 to move the tip. The portion 118 </ b> A side is in the state of entering the roller insertion groove 60. Therefore, the child seat 12 cannot be mounted on the seat base 52 in this state.
[0048]
Next, the distal end portion 50 </ b> A of the anchor member 50 is inserted into the engagement groove 78 formed at the rear end portion of each connector base 76. When the distal end portion 50A of the anchor member 50 is inserted into the engagement groove 78, one engagement piece 82A of the latch 82 is pressed forward by the distal end portion 50A. Therefore, as shown in FIG. 2, the latch 82 rotates clockwise around the support shaft 80 against the urging force of the first eject spring 90, so that the engagement groove 78 and the lock groove 84 are orthogonal to each other. The tip portion 50A of the anchor member 50 is restrained in a sandwiched form. This state is a locked state of the connector 74 with respect to the anchor member 50.
[0049]
In this locked state, the stopper holder 98 is slid rearward by the urging force of the second eject spring 96, and the stopper 102 held by the stopper holder 98 is also slid rearward. As a result, the stopper 102 is positioned directly below the stopper piece 82C of the latch 82, and the rotation of the latch 82 in the unlocking direction is prevented. Furthermore, as the stopper holder 98 is slid rearward, the wire 108 locked to the stopper holder 98 is pulled. Therefore, the release lever 118 with which the other end 108B of the wire 108 is locked is rotated clockwise around the support shaft 120 against the urging force of the tension coil spring 126. As a result, the distal end 118A side of the release lever 118 is retracted from the roller insertion groove 60, and the lower support roller 34 of the child seat 12 can be inserted.
[0050]
Therefore, next, the child seat 12 is mounted on the seat base 52. Specifically, the lower support roller 34 of the child seat 12 is moved from the roller insertion opening 64 into the lower roller insertion groove 60, and the upper support roller 36 is moved from the roller insertion opening 68 to the upper roller insertion groove. Each is inserted into 62 and fixed at an appropriate reclining angle. As a result, the child seat 12 is fixed to the anchor member 50 of the vehicle seat 14 using the child seat fixing device 10.
[0051]
When removing the child seat 12 from the vehicle seat 14, first, the upper and lower support rollers 34 and 36 of the child seat 12 are extracted from the roller insertion openings 64 and 68 of the seat base 52, and the child seat 12 is removed from the seat base 52. . Next, a finger is put on the tip 118A of the release lever 118 in the state shown in FIG. 2 and rotated around the support shaft 120 in the counterclockwise direction. As a result, the release lever 118 is in the state shown in FIG. 1, and the tip end 118A side of the release lever 118 is re-entered into the roller insertion groove 60, and the other end 108B side of the wire 108 is pulled. For this reason, the stopper holder 98 is forcibly slid forward, and the stopper 102 held by the stopper holder 98 is also slid forward and retracted from directly below the stopper piece 82C of the latch 82. Accordingly, the latch 82 rotates counterclockwise around the support shaft 80 by the urging force of the first eject spring 90, and the engaged state with the distal end portion 50A of the anchor member 50 is released. Thereby, the seat base 52 can be removed from the vehicle seat 14.
[0052]
On the other hand, when the child seat 12 is fixed to the vehicle seat 16 on which the anchor member 50 is not installed in advance, the connector 74 cannot be used. Therefore, as shown in FIG. 74 is stored in the seat base 52. As shown in FIGS. 5 to 7, the storing operation of the connector 74 is performed by sliding the upper slider 148 and the lower slider 154 along the rail 134. Further, the adjuster pin 166 is selectively engaged with the engagement hole 136 at the foremost position of the rail 134 by the biasing force of the return spring, whereby the holding state of the connector 74 in the retracted position is maintained.
[0053]
Here, when the connector 74 is stored in the seat base 52, the latch 82 of the connector 74 is naturally in an unlocked state. Therefore, in the mode, the tip end portion 118A side of the release lever 118 is connected via the wire 108. The state is entered into the roller insertion groove 60 (that is, the state where the child seat 12 is prevented from being attached to the seat base 52). However, in this embodiment, the front end portion of the connector 74 and the lower end portion of the release lever 118 are connected by the tension coil spring 126, and the connector is retracted from the roller insertion groove 60 when the connector is stored, as shown in FIG. Since the urging force in the direction is applied, the distal end 118A side of the release lever 118 is held in a position where it is forcibly retracted from the roller insertion groove 60. Therefore, the release lever 118 does not hinder insertion of the support roller 34 of the child seat 12 into the roller insertion groove 60.
[0054]
After the connector 74 is held in the retracted position in this manner, the seat base 52 is fixed on the seat cushion 38 of the vehicle seat 16 using the seat belt device 42 as shown in FIG. Specifically, when the webbing 44 of the seat belt device 42 is wound around the recess 58 of the seat base 52 and the tongue plate 46 is engaged with the buckle device 48, the seat base 52 is placed on the seat cushion 38 of the vehicle seat 16. Fixed to. Thereafter, the support rollers 34 and 36 of the child seat 12 may be inserted into the corresponding roller insertion grooves 60 and 62, respectively.
[0055]
As described above, in the child seat fixing device 10 according to the present embodiment, the child seat 12 can be mounted and the seat base 52 provided with the recess 58 for fixing on the vehicle seat 16 using the webbing 44 of the seat belt device 42. The connector 74 is slidably supported in the vehicle longitudinal direction, and the connector 74 is projected from the seat base 52 to the vehicle rear side according to the specifications of the vehicle seats 14 and 16 (the presence or absence of the anchor member 50). Since the connector slide mechanism 132 that brings the connector 74 to the position or the connector storage position where the connector 74 is stored in the seat base 52 is provided, the connector-type vehicle seat 14 and the seatbelt-type vehicle seat 16 are provided. It can be applied to any of the above and can increase versatility. That.
[0056]
Further, according to the child seat fixing apparatus 10 according to the present embodiment, the child seat 12 can be prevented from being attached to the seat base 52 in a state where the rear end portion of the connector 74 is not connected to the anchor member 50. That is, when the anchor member 50 fixes the child seat 12 to the vehicle seat 14 set in advance, the latch 82 provided on the rear end side of the connector 74 for incomplete fixing operation of the user or the like. Is not completely engaged with the anchor member 50 on the vehicle seat 14 side, the latch 82 remains in the released state. That is, it remains as shown in FIG. For this reason, the distal end 118A side of the release lever 118 is advanced into the roller insertion groove 60 of the seat base 52 by the wire 108, and the lower support roller 34 of the child seat 12 is inserted into the roller insertion groove 60 of the sheet base 52. I can't. As a result, the child seat 12 is prevented from being attached to the seat base 52, and the user can be notified that the seat base 52 is not fully fixed. As a result, according to the present embodiment, not only can it be applied to both the connector-type vehicle seat 14 and the seatbelt-type vehicle seat 16, but also misuse by the user. Can be prevented.
[0057]
Furthermore, according to the present embodiment, since the release lever 118 for releasing the locked state by the latch 82 is also used as a misuse prevention member, it is not necessary to install a dedicated part for preventing misuse. Therefore, according to this embodiment, the structure of the child seat fixing device 10 can be simplified.
[0058]
[Supplement of Embodiment]
<Correspondence with Claims>
In the above configuration, the latch 82, the second eject spring 96, the stopper holder 98, and the stopper 102 correspond to the “locking means” in the present invention, the release lever 118 (corresponding to the “release member”), the first eject spring 90, The eject cover 92 corresponds to “release means” in the present invention, the wire 108 corresponds to “connecting means” in the present invention, the tension coil spring 126 corresponds to “biasing means” in the present invention, and the recess 58 corresponds to “ It corresponds to “restraint part”.
[0060]
<Mention about the extension of the invention>
In the above-described embodiment, the release lever 118 which is a lever-like member is used as the “release member”. However, the present invention is not limited to this, and a cam-like member or an arm-like member may be used.
[0061]
Further, in the above-described embodiment, the configuration in which the release lever 118 and the stopper holder 98 are coupled by the wire 108 is employed.
[0062]
Further, in the present embodiment described above, the support rollers 34 and 36 are provided on the child seat 12 side, and the support rollers 34 and 36 are inserted into the roller insertion grooves 60 and 62 of the sheet base 52, whereby the child seat 12 is seated. Although the configuration for mounting on the base 52 is adopted, any configuration can be applied as long as the child seat can be mounted on the seat base.
[0063]
Further, in the above-described embodiment, the configuration in which the front end portion of the connector 74 and the lower end portion of the release lever 118 are connected by the tension coil spring 126 is employed. However, the tension coil spring 126 is not necessarily used, and the connector is stored. Any configuration that can be grasped as a biasing means that biases the release lever 118 in a direction in which the release lever 118 is retracted from the roller insertion groove 60 is applicable.
[0065]
【The invention's effect】
As described above, the child seat fixing device according to the first aspect of the present invention retracts the release member from the roller insertion groove when the locking means is locked when the connector is used, and when the connector is used, When the locking means is in the released state, the connector and the releasing member are connected to each other with the connecting means for allowing the releasing member to enter the roller inserting groove, and the releasing member is removed from the roller inserting groove when the connector is stored. Since the biasing means for biasing in the retracting direction is provided, the release member can be retracted from the roller insertion groove when the connector is stored in the base, and as a result, the vehicle seat and the seat belt of the connector system specification Not only can it be applied to any type of vehicle seat, it can also prevent misuse by the user. It has an excellent effect that it is.
[Brief description of the drawings]
FIG. 1 is a longitudinal cross-sectional view showing an unlocked state when a connector of a child seat fixing device according to an embodiment is used.
FIG. 2 is a longitudinal section showing a locked state when the connector of the child seat fixing device shown in FIG. 1 is used.
FIG. 3 is a longitudinal section showing a connector retracted state in the child seat fixing device shown in FIG. 1;
4 is a side view showing a state in which the release lever shown in FIG. 1 is assembled to a bracket, and a plan view of the release lever. FIG.
FIG. 5 is a plan view showing a configuration of a connector slide mechanism in the child seat fixing device according to the present embodiment.
6 is a cross-sectional view taken along line 6-6 of FIG. 5, showing the main part of the connector slide mechanism shown in FIG.
7A is a cross-sectional view taken along line 7 (A) -7 (A) in FIG. 5 showing a locked state by the connector slide mechanism shown in FIG. 5, and FIG. 7B shows a unlocked state. It is sectional drawing, (C) is a perspective view shown in the state which isolate | separated the slide piece and the adjuster pin.
FIG. 8 is a schematic perspective view showing the child seat fixing device according to the present embodiment in a state separated from the child seat.
FIG. 9 is a schematic side view of a child seat fixed to a vehicle seat by a connector method.
FIG. 10 is a schematic side view of a child seat fixed to a vehicle seat by a seat belt method.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Child seat fixing device 12 Child seat 14 Vehicle seat 16 Vehicle seat 34 Support roller 36 Support roller 42 Seat belt device 44 Webbing 50 Anchor member 52 Seat base 58 Recessed part (restraint part)
60 Roller insertion groove 62 Roller insertion groove 74 Connector 82 Latch (locking means)
90 First eject spring (release means)
92 Eject cover (release means)
96 Second eject spring (locking means)
98 Stopper holder (locking means)
102 Stopper (locking means)
108 wire (connection means)
118 Release lever (release member, release means)
126 Tension coil spring (biasing means)
132 Connector slide mechanism

Claims (1)

A restraint portion is mounted on the vehicle seat and fixed on the vehicle seat using the webbing of the seat belt device. Further, the roller insertion groove serving as a roller track provided on the child seat is provided on both sides. With a base for
A long connector provided on both sides of this base and arranged with the vehicle longitudinal direction as the longitudinal direction;
Locking means provided on the rear end side of the connector, and capable of being engaged with an anchor member set in advance in the vehicle seat;
The roller is inserted into the roller insertion groove of the base so as to be able to advance and retreat, and when inserted into the roller insertion groove, the insertion of the roller into the roller insertion groove is prevented and when the roller is retracted from the roller insertion groove, the roller is inserted. A release member configured to include a release member that allows insertion into the groove, and further, when a predetermined release operation using the release member is performed, a release unit that releases the engagement state between the lock unit and the anchor member;
The connector is provided in the base and supports the connector so as to be slidable in the longitudinal direction of the vehicle, and the connector is used in the position where the connector protrudes from the base to the vehicle rear side in accordance with the specifications of the vehicle seat. A connector slide mechanism for bringing the connector to the retracted position;
The release member and the lock means are connected, and when the lock means is locked when the connector is used, the release member is retracted from the roller insertion groove, and the lock means is released when the connector is used. A connecting means for allowing the release member to enter the roller insertion groove,
An urging means for coupling the connector and the release member, and for urging the release member in a direction to retract the roller insertion groove when the connector is retracted;
A child seat fixing device comprising:

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