WO2005053998A1 - チャイルドシート - Google Patents
チャイルドシート Download PDFInfo
- Publication number
- WO2005053998A1 WO2005053998A1 PCT/JP2004/018029 JP2004018029W WO2005053998A1 WO 2005053998 A1 WO2005053998 A1 WO 2005053998A1 JP 2004018029 W JP2004018029 W JP 2004018029W WO 2005053998 A1 WO2005053998 A1 WO 2005053998A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seat
- belt
- guide
- shoulder
- slider
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 claims description 90
- 230000000452 restraining effect Effects 0.000 claims description 31
- 238000004804 winding Methods 0.000 claims description 18
- 238000010586 diagram Methods 0.000 description 34
- 230000008859 change Effects 0.000 description 15
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 241000920340 Pion Species 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2803—Adaptations for seat belts
- B60N2/2806—Adaptations for seat belts for securing the child seat to the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2803—Adaptations for seat belts
- B60N2/2812—Adaptations for seat belts for securing the child to the child seat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2851—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle provided with head-rests
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2857—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle characterised by the peculiar orientation of the child
- B60N2/286—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle characterised by the peculiar orientation of the child forward facing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2872—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle provided with side rests
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2875—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle inclinable, as a whole or partially
- B60N2/2878—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle inclinable, as a whole or partially the back-rest being inclinable
Definitions
- the present invention relates to a child seat.
- the present invention relates to a child seat fixed to a vehicle seat using a seat belt, a child seat capable of adjusting a position of a belt for restraining an infant, and a child seat having a reclining function.
- a belt through hole is provided at a rear end side of a seat portion where an infant sits or a base portion that supports the seat portion.
- the waist belt portion of the seat belt is passed through the belt through hole, and the tether of the seat belt is connected to the buckle.
- the shoulder belt portion of the seat belt of the vehicle that is turned back at the stand is pulled up and guided along a predetermined route. As a result, a certain tension is applied to the vehicle seat belt, and the child seat is attached to the vehicle seat.
- a child seat having a reclining function is also known.
- the rear end of the seat cushion and the lower end of the seat back are rotatably connected so that the inclination of the seat back changes in conjunction with the movement of the seat cushion relative to the front and rear of the vehicle seat.
- a shoulder belt portion folded back with a tanda is located forward of a boundary between a seat cushion portion and a seat back portion of the child seat, or in a vehicle. Will be guided back to the front of the buckle position. For this reason, the inclination angle of the shoulder belt portion folded back by the tanda with respect to the waist belt portion becomes a relatively small acute angle, and the frictional force between the seat belt and the tanda increases.
- the above-described child seat disclosed in Japanese Utility Model Laid-Open Publication No. 6-42464 constitutes one unit including a seat portion on which an infant is seated and a restraining belt for restraining the infant, and the unit is mounted on a vehicle seat or seat. It is attached to the base fixed to. Accordingly, the number of parts in the seat portion increases, resulting in an increase in mass and an increase in the load applied to the connecting portion between the seat portion and the base portion.
- An operation section for adjusting the position of the restraint belt is provided on the back side of the seat section! /, So do not remove the seat section from the base section and flip it back and forth! / For this reason, there is a possibility that work outside the vehicle may be forced.
- a conventional child seat having a reclining function is configured to include a crotch belt and a shoulder belt for restraining a seated infant.
- the shoulder belt is connected via a buckle to the crotch belt connected to the seat cushion, and the end opposite to the connection point also passes through the front of the seatback and wraps around the back of the seatback, After being pulled out to the front of the seat cushion, it is connected to the seat cushion. Therefore, if the inclination of the seat back portion is changed by moving the seat cushion portion after restraining the seated infant, the length of the shoulder belt becomes too short or too long. As a result, the restraint of the seated infant by the belt is tighter or looser than at first.
- a first object of the present invention is to transmit a tension to a waist belt portion and a shoulder belt portion of a seat belt of a vehicle in a well-balanced manner so that the child seat can be easily and firmly fixed to the vehicle seat. It is an object of the present invention to provide a child seat that can be specified.
- a child seat has a seat cushion portion and a seat back portion, and utilizes a seat belt connected to a buckle of a vehicle. And is fixed to the seat of the vehicle in a forward facing posture. And a shoulder belt guiding force for guiding a shoulder belt portion of the seat belt of the vehicle lifted from a connection point with the buckle, the seat belt portion being on the same side as the position of the buckle in the left-right direction of the seat, and The seat back portion is disposed at a position closer to the seat back portion side than a boundary portion between the seat back portion and the seat back portion.
- the shoulder belt guide for guiding the shoulder belt portion is arranged as described above, the inclination angle of the shoulder belt portion folded back by the tundder with respect to the waist belt portion. Can be increased, thereby suppressing an increase in the frictional force between the seat belt and the tanda. Therefore, even if tension is applied to either the shoulder belt portion or the waist belt portion of the seat belt, the tension is easily transmitted to the shoulder belt portion or the waist belt portion that is turned back by the tanda. Therefore, the tension can be distributed to both the shoulder belt portion and the waist belt portion in a well-balanced manner, and the child seat can be easily and firmly fixed to the vehicle seat.
- the child seat according to the second aspect of the present invention is fixed to a seat of the vehicle in a forward position using a seat belt connected to a buckle of the vehicle.
- a shoulder belt guide that guides a shoulder belt portion of the seat belt of the vehicle lifted from a connection point with the buckle is disposed at a position deviated rearward from the position of the buckle in the front-rear direction of the seat. I have.
- the child seat of the second aspect it is possible to increase the inclination angle of the shoulder belt portion folded back by the tanda with respect to the waist belt portion, thereby reducing the frictional force between the seat belt and the tongue.
- the increase is suppressed. Therefore, even if tension is applied to either the shoulder belt portion or the waist belt portion of the seat belt, the tension is easily transmitted to the shoulder belt portion or the waist belt portion that is folded back by the tanda. Therefore, the tension can be distributed to both the shoulder belt portion and the waist belt portion in a well-balanced manner, and the child seat can be easily and firmly fixed to the vehicle seat.
- the shoulder belt guide is provided so as to be movable in a vertical direction of the seat.
- the seat belt may be provided with a shoulder belt guide position adjusting means for switching the release of the prohibition. If the shoulder belt guide having such a configuration is provided, the shoulder belt guide can be pulled up to apply tension to the shoulder belt portion and retighten the loosened seat belt.
- the seat cushion portion and the seat back portion may be supported by a frame, and the child seat is slidable with respect to the frame in a vertical direction of the seat.
- An operation assisting device comprising: an operating unit; and a connecting member that connects the operating unit and the shoulder belt guide, wherein the connecting member is rotatably provided around a fulcrum on the frame near the shoulder belt guide.
- a so-called lever device is provided in which a fulcrum on the frame, a connection point between the connecting member and the operation unit, and a connection point between the connecting member and the shoulder belt guide are a fulcrum, a force point, and an action point, respectively. The operating force for moving the shoulder belt guide can be reduced.
- the seat cushion portion and the seat back portion may be supported by a frame, and the child seat slides in a direction crossing the frame with respect to the frame.
- a possible operating portion, a connecting member for connecting the operating portion and the shoulder belt guide), and being bridged between the operating portion and one of the connecting members and the frame; May be provided in the operation direction. According to this aspect, since the operation unit is urged in the operation direction, the shoulder belt guide can be moved with a small force.
- a waist belt portion of a seat belt of the vehicle which is stretched from a connection point with the buckle to an opposite side in a left-right direction of the seat, is guided.
- the waist belt guide may be arranged at a position deviated more forward than the position of the buckle in the front-rear direction of the seat.
- the seatbelt is attached to the shoulder belt such that an angle formed by the shoulder belt portion and the waist belt portion with respect to a connection point with the bag becomes an obtuse angle above the seat. And guided by the belt guide and the waist belt guide.
- a guide device for a shoulder belt portion but also a device for guiding a waist belt such as a through hole is provided forward of a boundary between a seat cushion portion and a seat back portion, or a vehicle buckle. Is provided on the front side of the position. In such a child seat, the angle formed by the waist belt portion and the shoulder belt portion is further reduced, and there is a possibility that the frictional force due to the tanda is promoted.
- the angle formed by the waist belt portion and the shoulder belt portion that are folded back by the tanda is increased, so that an increase in frictional force due to the tanda can be effectively suppressed, and the child seat
- the fixing force on the vehicle seat can be further increased.
- a second object of the present invention is to provide a child seat whose position can be adjusted without removing a restraining belt that restrains an infant.
- the child seat according to the third aspect of the present invention includes a base portion fixed to a vehicle seat, and the base portion in a posture facing forward with respect to the seat. And a seat part attachable on the part.
- the base portion includes a base body fixed to the seat, a restraint belt device including a pair of shoulder belts for restraining an infant seated on the seat portion, and a shoulder for guiding the shoulder belt.
- the restraint belt device and the belt guide adjusting mechanism are provided on the base portion fixed to the seat of the vehicle. Therefore, the seat portion on which the infant is seated is light-weighted, and the load applied to the connecting portion with the base portion is small.
- the belt guide position adjusting mechanism prohibits the movement of the shoulder belt guide in a vertical direction of the seat by operating an operation unit, and prohibits the prohibition of the movement.
- the operating portion which may include a restraining means for switching the release, is provided at a position where the front side force of the seat portion can be operated.
- a belt guide position adjustment mechanism that adjusts the position of the restraint belt is provided on the base unit.Therefore, it is easy to adjust the position in a vehicle where it is not necessary to remove the seat unit and turn it back and forth. Can be.
- the base body may include a pair of frames, and the restraining means may move up and down along the pair of frames. And a shaft that can be inserted into and removed from holes formed in the pair of frames. Since the restraint means for switching the prohibition of movement of the shoulder belt guide and the release of the prohibition move vertically between the pair of frames, sufficient strength can be secured. Further, since the restraining means is positioned with respect to the frame by the shaft, the position of the shoulder belt guide can be surely adjusted.
- the shoulder belt is arranged so as not to interfere with the seat portion attached to the base portion, from the rear side of the pair of frames to the front side of the seat portion. You may have been guided to. In this case, since the shoulder belt does not interfere with the seat portion, the reliability of restraining the infant seated on the seat portion is improved.
- the child seat according to the fourth aspect of the present invention is fixed to a vehicle seat in a forward position, and the child seat restrains the child.
- the belt guide position adjusting mechanism includes a restraining means for switching between prohibition of movement of the shoulder belt guide in the vertical direction of the seat and release of the prohibition by operation of an operation unit, wherein the operation unit is provided with the seat. It is provided at a position that can be operated from the front side.
- the operation portion of the belt guide position adjusting mechanism is provided at a position where the front side force of the seat can be operated. Position adjustment can be easily performed in a vehicle where there is no need to adjust the position of the belt device.
- a third object of the present invention is to provide a child seat capable of suppressing fluctuations in belt slack even when the inclination of the seat back portion is changed.
- a child seat includes a base portion disposed on a vehicle seat, and a child seat having a forward position with respect to the vehicle seat. And a sheet portion arranged on the base portion. And in the base part, A base body fixed to the seat, a slider connected to the base body such that the position of the vehicle seat can be adjusted in the front-rear direction, and a pair of shoulder belts for restraining an infant seated on the seat portion One end side is connected to the shoulder belt on the back side of the seat portion, and the other end side is provided with a binding belt device having an adjustment belt pulled out in front of the slider, and in accordance with the movement of the slider. A slack adjustment mechanism for changing the guide path of the adjustment belt is provided.
- the guide path of the adjustment belt can be changed in accordance with the movement of the slider, even if the position of the slider changes, the change in the slack amount of the shoulder belt can be suppressed. Infants seated on the seat can be restrained appropriately.
- the slack adjustment mechanism is arranged adjacent to the guide path and provided so as to be able to advance and retreat in a direction crossing the guide path.
- a guide block, an intervening member that moves along the guide block to move the guide block forward and backward, and a link that connects the slider and the intervening member may be provided.
- the guide block is gradually advanced in accordance with the backward movement of the slider, and the adjustment belt is gradually guided forward. Therefore, even if the position of the slider changes, the change in the slack amount of the shoulder belt can be suppressed.
- the slack adjustment mechanism is provided adjacent to the in-plan path so as to be rotatable with respect to the base body.
- a linking means for linking the forward and backward movement of the slider and the rotational movement of the force member.
- the cam member provided adjacent to the guide path of the adjustment belt rotates in conjunction with the advance / retreat of the slider, and can bypass the guide path. The change in the amount of slack can be suppressed.
- the slack adjustment mechanism comprises: A guide member which is provided adjacent to the guide path and movably with respect to the base body, and which cooperates with the guide member for detouring the guide path by the movement thereof; And a linking means for performing the operation.
- the guide member provided adjacent to the adjustment belt guide path moves in conjunction with the advance and retreat of the slider, the guide path of the adjustment belt can be bypassed, so that the position of the slider changes. Therefore, the change of the slack amount of the shoulder belt can be suppressed.
- the adjustment belt or the shoulder belt may include a portion configured such that a plurality of belts face each other via the slack adjustment mechanism.
- the slack adjustment mechanism can be operated so as to push and spread the portion where the belt faces each other. Can be more reliably changed. The same applies to the shoulder belt.
- the child seat according to the sixth aspect of the present invention comprises: a base portion disposed on a vehicle seat; And a sheet portion arranged on the base portion.
- the base portion includes a base body fixed to the seat, a slider connected to the base body so as to adjust a position of the seat of the vehicle in the front-rear direction, and an infant seated on the seat portion.
- a pair of shoulder belts for restraining and one end side are connected to the shoulder belt on the back side of the seat portion, and the other end side is provided with a binding belt device having an adjustment belt pulled out in front of the slider.
- a seat cushion connected to the slider and a seat rotatably connected to a rear end of the seat cushion so as to be rotatable about an axis extending in the left-right direction of the seat.
- a back portion, and the seat back portion is provided with a slack adjusting mechanism for changing a guide path of the adjusting belt in accordance with the movement of the slider. .
- the guide path of the adjustment belt can be changed by using a seatback whose inclination changes with the movement of the slider. Therefore, even if the position of the slider changes, the change in the amount of slack of the shoulder belt can be suppressed and the infant seated on the seat can be restrained appropriately.
- the child seat according to the seventh aspect of the present invention comprises a base portion disposed on a vehicle seat and the child seat in a posture facing forward with respect to the vehicle seat. And a sheet portion arranged on the base portion.
- the base portion includes a base body fixed to the seat, a slider connected to the base body so as to adjust a position of the seat of the vehicle in the front-rear direction, and an infant seated on the seat portion.
- a restraining belt device for restraining, the restraining belt device includes a pair of shoulder belts, an adjustment belt connected to the shoulder belts, and a winding mechanism for winding the adjustment belt in response to movement of the slider. Is provided.
- one end of the adjustment belt which is not so tender when erecting the seat back portion, is wound up.
- a part of the adjustment belt wound up by the winding mechanism is rewound. Therefore, even if the reclining angle changes due to the movement of the slider, the change in the slack of the shoulder belt can be suppressed, and the infant seated on the seat can be appropriately restrained.
- FIG. 1 is a diagram showing a basic configuration of a child seat according to a first embodiment of the present invention.
- FIG. 2 is a view showing a specific configuration of the child seat according to the first embodiment of the present invention.
- FIG. 3 is a perspective view showing details of a base portion by removing a seat portion in FIG. 2.
- FIG. 4 is a perspective view showing details of a shoulder belt guide.
- FIG. 5A is a view showing an example of a position adjusting unit in a state where a guide main body is removed.
- FIG. 5B is a perspective view showing the back of the position adjusting means of FIG. 5A.
- FIG. 6 is a diagram showing another example of the position adjusting means.
- FIG. 7 is a view showing an operation assisting device that assists a movement operation of a shoulder belt guide.
- FIG. 8 is a diagram showing another example of the operation assisting device.
- FIG. 9 is a diagram showing an outline of a child seat according to a second embodiment of the present invention.
- FIG. 10 is a perspective view in which an upper part of a child seat according to a second embodiment of the present invention is enlarged and a part thereof is cut.
- FIG. 11 is a perspective view showing the details of a base portion with a seat portion removed.
- FIG. 13A is a perspective view showing details of a belt guide position adjusting mechanism.
- FIG. 13B is a perspective view showing a state when the belt guide position adjusting mechanism is operated.
- FIG. 14 is a diagram showing a basic configuration of a child seat according to a third embodiment of the present invention.
- FIG. 15A is a view showing a state in which a seat back portion is raised.
- FIG. 15B is a diagram showing a state in which the seat back portion is turned down.
- FIG. 16 is a view showing a specific configuration of the child seat according to the third embodiment of the present invention.
- FIG. 17 is a perspective view showing the details of the base portion with the seat portion of FIG. 17 removed.
- FIG. 18 is a perspective view showing details of a slack adjusting mechanism.
- [ ⁇ 19A] is a diagram showing a state in which the infant is restrained by raising the seat back portion.
- FIG. 19B is a diagram showing a state in which the infant is restrained by tilting the seat back portion.
- FIG. 19C is a diagram showing a state where the infant is restrained by further tilting the seat back portion.
- FIG. 21A A diagram showing another embodiment using a cam member as a slack adjustment mechanism.
- FIG. 21B is a view showing still another embodiment in which a cam member is used as a slack adjustment mechanism.
- FIG. 22A A diagram showing another embodiment using a wrapping pin as a slack adjusting mechanism.
- FIG. 22B is a diagram showing a modification of the slack adjusting mechanism of FIG. 22A.
- FIG. 22C is a diagram showing another modification of the slack adjustment mechanism in FIG. 22A.
- FIG. 22D A diagram showing still another mode in which a wrap pin is used as a slack adjusting mechanism.
- FIG. 23A is a diagram showing another form of the slack adjusting mechanism and the adjusting belt.
- FIG. 23B is a view showing another embodiment in which the slack adjustment mechanism is changed from that of FIG.
- FIG. 23C is a view showing still another embodiment in which the slack adjustment mechanism is changed from that of FIG. 23A.
- FIG. 23D A diagram showing a form in which a balloon is provided as a slack adjustment mechanism.
- FIG. 24A illustrates a further form of the slack adjusting mechanism.
- FIG. 24B is a diagram showing a form in which the slide block of the slack adjustment mechanism is changed.
- FIG. 24C is a diagram showing a form in which a winding mechanism is provided as a slack adjustment mechanism.
- FIG. 25A is a diagram showing an embodiment in which a slack adjustment mechanism is provided in a seat back portion.
- FIG. 25B is a diagram showing a mode in which a slack adjustment mechanism is provided on a slider.
- FIG. 25C is a diagram showing a form in which a slack adjustment mechanism is provided on the back surface of the slider.
- FIG. 26A is a diagram showing an embodiment in which a slack adjustment mechanism is configured by combining a plurality of mechanisms.
- FIG. 26B is a view showing another embodiment in which a slack adjustment mechanism is configured by combining a plurality of mechanisms.
- the child seat 1 includes a base portion 2 and a seat portion 3 detachably mounted on the base portion 2.
- the base portion 2 is fixed so as to be in contact with a seat cushion 101 and a seat back 102 of a vehicle seat 100 using a vehicle seat belt.
- the base portion 2 includes a base body 2a fixed to the seat 100, a restraint belt device 4 for restraining an infant, and a slider 5 capable of adjusting the position of the seat 100 in the front-rear direction with respect to the base body 2a.
- the seat portion 3 is connected to the slider 5 via a seat cushion portion 6 integrally connected to the slider 5 so as to be adjustable and detachable, and a support shaft 7 extending in the left-right direction of the seat 100.
- a seat back portion 8 rotatably connected to a rear end portion of the cushion portion 6 and a rear surface side detachably connected to the base portion 2.
- FIG. 2 is a perspective view showing an outline of the child seat 1.
- the child seat 1 includes the base portion 2 and the seat portion 3 detachably attached to the base portion 2.
- the base part 2 is provided with a restraint belt device 4.
- FIG. 3 is a view showing the details of the base 2 with the seat 3 removed.
- the base section 2 includes a base body 2a.
- the base body 2a is a support base as a bottom support.
- a back frame 12 as a back support portion extending upward from the rear end side of the support base 11.
- the back frame 12 includes a pair of main frames 13 that stand rearward from both sides of the support base 11 and a connecting portion 14 disposed between the main frames 13.
- Each of the pair of main frames 13 is provided with a shoulder belt guide 150 and a lock-off device 16 as a restraining device.
- FIG. 3 shows only the shoulder belt guide 150 of one main frame 13 and the lock-off device 16 of the other main frame 13.
- the shoulder belt guide 150 is used to fix the base 2 to the seat 100 (see FIG. 1) by attaching the tanda 103A, through which the shoulder belt portion 104 of the vehicle's seat belt is passed, to the buckle 103B.
- the lock-off device 16 is a known device that fixes the shoulder belt portion 104 to the base portion 2 by sandwiching the shoulder belt portion 104 guided to the rear side of the frame 12 between a pair of claws.
- a shoulder belt portion 104 passed between an anchor (not shown) of the vehicle and a position fixed by the buckle 103 B is provided along a shoulder belt guide 150 provided on one main frame 13 of the base portion 2. It is guided to the rear side of the frame 12 and is sandwiched by a lock-off device 16 provided on the opposite main frame 13. As a result, the belt length of the waist belt portion 105 up to the anchor force lock-off device 16 is fixed at a constant value, and the base portion 2 is fixed to the seat 100. The reason why the shoulder belt portion 104 is not passed through the front side of the base portion 2 is to avoid interference between the shoulder belt portion 104 and the shoulder belt 30 of the restraint belt device 4.
- the mounting positions of the shoulder belt guide 150 and the lock-off device 16 are the same height of the main frame 13 on the opposite side. The position can be changed.
- the shoulder belt guide 150 is disposed at a position deviated rearward from the position of the buckle 103B in the front-rear direction of the vehicle seat 100.
- the child seat 1 With reference to the child seat 1, it is on the same side as the position of the buckle 103B in the left-right direction of the vehicle seat 100, and is closer to the seat back portion 8 than the boundary between the seat cushion portion 6 and the seat back portion 8. It can be rephrased that they are arranged in a position biased toward (see also Fig. 2).
- shoulder Since the belt guide 150 is arranged in this way, the horizontal lifting angle of the shoulder belt portion 104 can be kept small, and the frictional force between the seat belt used for fixing the child seat 1 and the tundler 103A is reduced. Increase can be suppressed.
- a waist belt guide 34 for guiding a waist belt portion 105 of the vehicle is provided so as to protrude from both sides of the slider 5.
- the position of these waist belt guides 34 in the front-rear direction is determined so that the waist belt portion 105 is located further forward than the crotch belt fixing portion 33 even when the slider 5 moves to the front end of its movable range. RU Therefore, the waist belt guide 34 holds the waist belt portion 105 at a position between the base portion 2 and the seat cushion portion 6 and at a position closer to the front end than the center in the front-rear direction of the base portion 2. Is done.
- the inclination angle of the waist belt portion 105 extending from the vehicle anchor and buckle 103B toward the base portion 2 with respect to the horizontal direction is reduced, and the effect of the waist belt portion 105 restraining the base portion 2 in the front-rear direction is reduced.
- the shoulder belt portion 104 that is folded back from the waist belt portion 105 by the tanda 103B is guided by the shoulder belt guide 150 to a position deviated rearward from the buckle 103A as described above. Accordingly, the angle of the waist belt portion 105 and the shoulder belt portion 104 with respect to the position above the seat 100 is larger than when the waist belt guide 34 is disposed near the buckle 103A.
- the angle formed by the shoulder belt portion 104 and the waist belt portion 105 around the connection point with the buckle 103A is a pure angle above the seat 100. .
- the waist belt guide 34 holds the belt-shaped waist belt portion 105 in an upright position, in other words, holds the belt-shaped waist belt portion 105 in a posture in which the width direction of the belt-shaped waist belt portion 105 is directed substantially vertically. Formed in By passing the waist belt portion 105 through the waist belt guide 34 in such a posture, the base body 2a of the base portion 2 can be firmly held by the waist belt portion 105 against a forward impact acceleration.
- FIG. 4, FIG. 5A, and FIG. 5B are diagrams showing details of the shoulder belt guide 150.
- FIG. The shoulder belt guide 150 is provided so as to be vertically movable with respect to the main frame 13. See Figure 4 Then, the shoulder belt guide 150 is provided with a concave portion 150b for winding the guide body 150a and the shoulder belt portion 104, and switching between prohibition of movement of the shoulder belt guide 150 and release of the prohibition. It may be referred to as position adjustment means.) 151. Since the shoulder belt guide 150 is configured in this manner, by moving the shoulder belt guide 150 upward with respect to the seat 100, the shoulder belt portion 104 wrapped around the shoulder belt guide 150 is pulled upward, and the child seat The seat belt of the vehicle used for fixing can be refastened.
- FIG. 5A and FIG. 5B are diagrams showing an example of the position adjusting means 151.
- FIG. 5A is a perspective view showing the details of the position adjusting means 151 with the guide body 150a removed
- FIG. 5B is a perspective view showing the back surface of FIG. 5A.
- the position adjusting means 151 includes a slide member 153 that slides along the main frame 13, a guide shaft 157 that is attached to the main frame 13 and regulates a moving range of the slide member 153, and a slide member 153.
- a lever 152 for inhibiting movement of the frame 13 and releasing the movement.
- a lock pin 154 that can be inserted into and removed from a plurality of lock holes 158 provided in the main frame is attached to lever 152.
- the lock pin 154 is provided with a coil spring 156 that biases the lock pin 154 and the lever 152 in a direction to be inserted into the lock hole 158.
- the lock pin 154 and the lock hole 158 are fitted to each other, and the movement with respect to the frame 13 is prohibited.
- the position adjusting means 151 is configured as described above, the position of the shoulder belt guide 150 can be selectively adjusted according to the position of the lock hole 158.
- FIG. 6 shows another example of the position adjusting means 151.
- an inclined surface 154a that is inclined with respect to the lock hole 158 is formed at the tip of the lock pin 154. Therefore, when the shoulder belt guide 150 is moved to the side where the inclined surface 154a is formed (upward in the figure), the release operation by the lever 152 is not required. Therefore, in this embodiment, while the movement of the shoulder belt guide 30 in the direction in which the seat belt is pulled up is free, the movement in the opposite direction is prohibited unless a predetermined release operation is performed. [0053] A seat belt that secures the child seat is wound around the shoulder belt guide 150. For this reason, a certain amount of operating force is required to move it.
- FIG. 7 and 8 are views showing an operation assisting device 160 for assisting the operation of moving the shoulder belt guide 150 with respect to the frame 13.
- the operation assisting device 160 is disposed between the main frames 13 and 13 and is slidable up and down with respect to the seat 100 of the vehicle.
- the connecting member 162 is provided rotatably about a fulcrum F on the frame 13 near the shoulder belt guide 150.
- the operation unit 161 has a long hole 161a, and the operation unit 161 is further provided with a sliding piece 161b movable in the long hole 161a.
- One end of a connecting member 162 is rotatably connected to the sliding piece 161b.
- a shoulder belt guide 150 is rotatably connected to the other end of the connecting member 162. Therefore, according to this example, the fulcrum F on the frame 13, the connection point between the connection member 162 and the operation unit 162, and the connection point between the connection member 162 and the shoulder belt guide 150 are defined as a fulcrum, a force point, and an action point, respectively.
- a so-called leverage device is configured to reduce the operating force for moving the shoulder belt guide 150.
- FIG. 8 is a diagram showing another example of the operation assisting device 160.
- the operation assisting device 160 includes an operating portion 163 slidable with respect to the frame 13 in a direction transverse thereto, and a connecting member for connecting the operating portion 163 to the shoulder belt guide 150. 164, and a coil spring 165 as a biasing means bridged between the connecting member 164 and the frame 13.
- the operation unit 163 is provided with a long hole 163a orthogonal to the moving direction of the operation unit 163.
- One end of the connecting member 164 is inserted into the long hole 163a, and the connecting member 164 is connected to the operation unit 163 in a rotatable and slidable manner within the long hole 163a.
- the other end of the connecting member 164 is rotatably connected to the shoulder belt guide 150.
- a coil spring 165 is bridged between the connecting member 1 64 and the frame 13, and the coil spring 165 urges the operation section 163 in the operation direction. Therefore, according to this example, when the operation unit 163 is moved from the position indicated by the solid line to the position indicated by the imaginary line in FIG. Therefore, the operating force required to move the shoulder belt guide 150 can be reduced.
- the coil spring 165 serving as the urging means is bridged between the frame 13 and the operation unit 163 instead of being bridged between the frame 13 and one end of the connecting member 164.
- a belt guide 35 for guiding the pair of shoulder belts 30 of the restraint belt device 4 is provided below the connecting portion 14 of the frame 12.
- the shoulder belt 30 guided to the rear side of the frame 12 by the belt guide 35 is connected to one adjustment belt 37 via a connecting member 36.
- the adjustment belt 37 is wound around the connecting shaft 38 and guided between the support base 11 and the slider 5, and the tip 37 a of the adjustment belt 37 is passed through a belt adjuster 39 provided at the front end of the slider 5 so as to be passed through the child seat.
- the belt adjuster 39 is a known belt length adjusting device that allows the adjusting belt 37 to be pulled out forward and prevents the adjusting belt 37 from returning backward unless a releasing operation is performed.
- the tip 37a of the adjustment belt 37 is pulled out forward to be fed out between the fixed portion 31 and the belt guide 35.
- the length of the shoulder belt 30 can be adjusted to a desired value.
- a bearing portion 42 for rotatably connecting the seat cushion portion 6 is provided at the rear end of the slider 5.
- the seat cushion section 6 has a cushion 45 on which an infant sits, and side supports 46 provided on both sides of the cushion 45.
- the seat back portion 8 includes a backrest 48 for supporting the back of the infant, a headrest 49 for supporting the back of the head, and side supports 50 and 51 protruding to the sides.
- the shoulder belt 30 of the restraint belt device 4 is drawn out of the gap between the side supports 50 and 51 toward the front side of the seat portion 3.
- the present invention is not limited to the first mode, and may be implemented in various modes.
- the number of the belt guides 34 on the base is not limited to two, and the number may be changed as necessary to hold the waist belt portion 105.
- the belt guide 34 may be provided continuously over the entire width of the slider 5.
- the present invention is applicable irrespective of the presence or absence of the reclining mechanism using the slider 5, and the configuration of the seat portion may be such that the seat cushion portion and the seat back portion are formed in a body.
- the present invention is applied to a child seat having a so-called shell structure in which a base part 2 and a seat part 3 attached to a vehicle seat are separable. it can.
- FIG. 9 and FIG. 13B show a child seat according to a second embodiment of the present invention.
- portions common to the first embodiment are denoted by the same reference numerals.
- the child seat 1 includes a base portion 2 and a seat portion 3 detachably mounted on the base portion 2.
- the base portion 2 is fixed so as to be in contact with a seat cushion 101 and a seat back 102 of a vehicle seat 100 using a vehicle seat belt.
- the base portion 2 includes a base body 2a fixed to the seat 100, a restraint belt device 4 for restraining an infant, and a slider 5 capable of adjusting the position of the seat 100 in the front-rear direction with respect to the base body 2a.
- the seat portion 3 is connected to the slider 5 via a seat cushion portion 6 which is integrally connected to the slider 5 so that the position can be adjusted and detached, and a support shaft 7 extending in the left-right direction of the seat 100.
- a seat back portion 8 rotatably connected to a rear end portion of the cushion portion 6 and a rear surface side detachably connected to the base portion 2.
- FIG. 10 is a perspective view in which the upper portion of the child seat 1 is enlarged and a part thereof is cut.
- the seatback section 8 includes a backrest 48 for supporting the back of the infant, a headrest 49 for supporting the back of the infant, and two upper and lower side supports 50 and 51 projecting to the sides.
- the shoulder belt 30 of the restraint belt device 4 is drawn out of the gap between the side supports 50 and 51 toward the front side of the seat portion 3.
- a belt guide 35 for guiding the shoulder belt 30 is provided on the base portion 2.
- the belt guide 35 is provided through the cover 10 so as to expose a part thereof.
- FIG. 11 is a view showing the details of the base portion 2 with the seat portion 3 removed.
- the base section 2 includes a base body 2a.
- the base body 2a includes a support base 11 as a bottom support and a back frame 12 as a back support extending upward from the rear end of the support base 11.
- the back frame 12 includes a pair of main frames 13 that stand rearward from both sides of the support base 11 and a connecting portion 14 disposed between the main frames 13.
- Each of the pair of main frames 13 is provided with a fixing belt guide (sometimes simply referred to as a belt guide) 15 and a lock-off device 16 as a restraining device.
- the belt guide 15 is used to secure the base portion 2 to the seat 100 (see FIG. 9) by attaching the tanda 103 A through which the shoulder belt portion 104 of the vehicle's seat belt is passed to the buckle 103 B, and fixing the base portion 2 to the seat belt 100. This is for guiding 104 to the rear side of the frame 12.
- a shoulder belt guide 150 of the first embodiment may be used.
- the lock-off device 16 is a known device that fixes the shoulder belt portion 104 to the base portion 2 by sandwiching the shoulder belt portion 104 guided to the rear side of the frame 12 between a pair of claws.
- the shoulder belt portion 104 passed between the vehicle anchor (not shown) and the fixing position by the buckle 103B is provided along the belt guide 15 provided on one main frame 13 of the base portion 2 along with the back frame. It is guided to the rear side of 12 and is sandwiched between lock-off devices 16 provided on the main frame 13 on the opposite side. As a result, the belt length from the anchor of the waist belt portion 105 to the lock-off device 16 is fixed to a fixed value, and the base portion 2 is fixed to the seat 100. The reason why the shoulder belt portion 104 is not passed through the front side of the base portion 2 is to avoid interference between the shoulder belt portion 104 and the shoulder belt 30 of the restraint belt device 4.
- the mounting positions of the belt guide 15 and the lock-off device 16 are respectively the same height of the main frame 13 on the opposite side. The position can be changed.
- a fixing portion 31 of the pair of shoulder belts 30 of the restraint belt device 4 and a fixing portion 33 of the crotch belt 32 of the restraint belt device 4 are provided on the upper surface of the slider 5. These fixing portions 31 and 33 are provided so as to protrude from the upper surface of the slider 5 so that the belts 30 and 32 can be fixed at substantially the same height as the seat surface of the seat cushion portion 6 mounted on the slider 5.
- a waist belt guide 34 for guiding the waist belt portion 105 of the vehicle is provided so as to project to both sides of the slider 5.
- the positions of the waist belt guides 34 in the front-rear direction are determined so that the waist belt portion 105 is located further forward than the crotch belt fixing portion 33 even when the slider 5 moves to the front end of its movable range. Accordingly, the waist belt guide 34 holds the waist belt portion 105 at a position between the base portion 2 and the seat cushion portion 6 and at a position closer to the front end side than the center portion in the front-back direction of the base portion 2. . From this, the vehicle's anchor and buckle 103B also reduce the inclination angle of the waist belt portion 105 with respect to the horizontal direction, which is extended toward the base portion 2, and the waist belt portion 105 restrains the base portion 2 in the front-rear direction. The effect can be increased.
- a shoulder belt guide 35 for guiding the pair of shoulder belts 30 of the restraint belt device 4 is provided below the connecting portion 14 of the frame 12.
- the shoulder belt 30 guided to the back side of the frame 12 by the shoulder belt guide 35 is connected to a single adjustment belt 37 via a connector 36 (see also FIG. 9).
- the adjustment belt 37 is wound around the connection shaft 38 parallel to the support shaft 7 attached between the lower ends of the main frame 13 and is positioned between the support base 11 and the slider 5.
- the slider 5 is passed through a belt adjuster 39 provided at the front end of the slider 5 and pulled out of the child seat 1.
- the tip 37a of the adjustment belt 37 is pulled out forward, so that the gap between the fixed part 31 and the shoulder belt guide 35 is obtained.
- the length of the shoulder belt 30 can be adjusted to a desired value.
- FIG. 12 shows details of the connecting portion 14 provided on the back frame 12 for connecting the seat back portion 8 to the base portion 2.
- the connecting portion 14 includes a pair of crossbars 65 bridged between the main frames 13, upper and lower guide rods 66 crossed between the crossbars 65, the guide rods 66 and the main frame 13. It has a slider 67 that can be guided and moved up and down. At the center of the upper part of the slider 67, a center support portion 68 protruding forward is provided, and pin insertion holes 68a are formed on both sides (only one side is shown in the figure) of the center support portion 68.
- a connecting pin 75 that fits into the pin insertion hole 68a of the slider 67 is mounted on the back side of each side support 50 of the seat back portion 8 so as to be slidable in the left and right direction.
- the connecting pins 75 are inserted into the pin insertion holes 68a provided in the slider 67 of the connecting portion 14, the seat back portion 8 is connected to the back frame 12 via the slider 67 (see FIG. 9). It is rotatably connected around the connecting pin 75.
- a slide guide 71 that slides along the main frame 13 is provided below the slider 67. Further, the above-described belt guide 35 is provided inside the slide guide 71. Therefore, the belt guide 35 moves up and down together with the support portions 68 and 69. As a result, the shoulder belt guide 35 is always positioned in the gap between the side supports 50 and 51 of the seat back portion 8 connected to the slider 67, so that the position where the shoulder belt 30 is pulled out with respect to the seat portion 3 can be prevented from changing.
- the slide guide 71 includes an operation unit 71a. By operating the operation section 71a, the position of the shoulder belt guide 35 can be changed with respect to the slider 67, and the position where the shoulder belt 30 is pulled out with respect to the seat section 3 can be changed according to the physical size of the infant.
- the slide guide 71 forms a part of a belt guide position adjusting mechanism that movably connects the shoulder belt guide 35. The details of the belt guide position adjusting mechanism will be described below.
- FIGS. 13A and 13B are perspective views showing details of the belt guide position adjusting mechanism.
- the belt guide position adjusting mechanism includes a base 74 and a slide guide 71 as a restraining means for switching movement of the shoulder belt guide 35 and release of the inhibition.
- the base 74 is provided so as to be able to slide with respect to the guide rod 66 in the vertical direction of the seat 100 (see FIG. 9). Further, a shoulder belt guide 35 is attached to the base 74, and further, shaft holders 74a and 74b for receiving the shaft 73 machined in a substantially U shape and defining the movement range thereof are provided. ! /
- the slide guide 71 is arranged along the inside of the frame 13.
- a shaft 73 is attached to the slide guide 71 via shaft holders 74a and 74b of a base 74.
- the shaft 73 is attached so that its end is exposed from the slide guide 71.
- a pair of coil springs 72 is provided between the slide guide 71 and the shaft retainer 74a. It is mounted in a compressed state on each side of the shaft 71 and the shaft retainer 74a.
- the slide guide 71 is urged by the coil spring 71a so as to press the frame 13 from the inside of the frame 13 while moving the slide guide 71 with respect to the base 74 together with the shaft 73 in the left-right direction. Therefore, the end of the shaft 73 exposed from the slide guide 71 is fitted into the plurality of insertion holes 13a formed in the frame 13, and the movement of the shoulder belt guide 35 is prohibited.
- the operation unit 71a provided on the slide guide 71 Is pulled inward against the urging force of the coil spring 72, the end of the shaft 73 is pulled out from the insertion hole 13a, and the prohibition of the movement of the shoulder belt guide 35 is released. Then, while maintaining the released state, the shoulder belt guide 35 is moved to the position indicated by the two-dot chain line, and then the operating portion 7la is opened, and the end of the shaft 73 is fitted into the insertion hole 13a of the moving destination. To connect the slide guide 71. Since a plurality of insertion holes 13a formed in the frame 13 are provided at predetermined positions, the position of the shoulder belt guide 35 can be selectively changed by the belt guide adjusting mechanism.
- the seat portion 3 and the base portion 2 are configured such that, when they are combined, the operation portion 71a of the above-described position adjustment mechanism is located in the gap between the side supports 50 and 51. Accordingly, the position of the shoulder belt guide 35 can be adjusted with respect to the front side force of the seat portion 3.
- the seat back portion 8 is configured so that the gap between the side supports 50 and 51 of the seat back portion 8 can be moved in accordance with the change in the position of the shoulder belt guide 35. Therefore, even after attaching the child seat 1, the position of the shoulder belt guide 35 can be changed without interference between the shoulder belt 30 and the seat back portion 8.
- the present invention is not limited to the second embodiment, and may be implemented in various embodiments.
- the present invention can be applied to the child seat described above.
- a child seat having a reclining mechanism using the slider 5 is described as an example, but the present invention is applicable regardless of the presence or absence of the reclining mechanism. (Third embodiment)
- FIGS. 14 and 26B show a child seat according to the third embodiment of the present invention.
- portions common to the first or second embodiment are denoted by the same reference numerals.
- the child seat 1 includes a base part 2 and a seat part 3 detachably mounted on the base part 2.
- the base portion 2 is fixed so as to be in contact with a seat cushion 101 and a seat back 102 of a vehicle seat 100 using a vehicle seat belt.
- the base portion 2 includes a base body 2a fixed to the seat 100, a restraint belt device 4 for restraining an infant, and a slider 5 capable of adjusting the position of the seat 100 in the front-rear direction with respect to the base body 2a.
- Both ends 4a and 4b of the restraint belt device 4 are connected to the slider 5, respectively.
- the base portion 2 is provided with a slack adjustment mechanism 81 that changes the guide route of the restraint belt device 4 in conjunction with the forward and backward movement of the slider 5.
- the seat portion 3 is rotated to a rear end portion of the seat cushion portion 6 via a support shaft 7 extending in the left-right direction of the seat 100 and a seat cushion portion 6 integrally connected to the slider 5.
- a seat knock portion 8 which is connected to the base portion 2 so as to be detachably connected to the base portion 2.
- the slider 5 is moved back and forth together with the seat cushion 6 as shown in Figs. 15A and 15B, so that the seat back 8 is moved around the support shaft 7. It can be rotated to change its reclining angle.
- the child seat 1 is configured such that the slack adjustment mechanism 81 changes the guide route of the restraint belt device 4 in conjunction with the forward and backward movement of the slider 5 (change in the inclination of the seat back portion 8). This corresponds to the fluctuation of the looseness of the belt of the restraint belt device 4.
- FIG. 16 is a perspective view showing an outline of the child seat 1.
- the child seat 1 includes the base portion 2 and the seat portion 3 detachably attached to the base portion 2.
- the base part 2 is provided with a restraint belt device 4.
- FIG. 17 is a view showing the details of the base portion 2 with the seat portion 3 removed.
- the base section 2 includes a base body 2a.
- the base body 2a includes a support base 11 as a bottom support and a back frame 12 as a back support extending upward from the rear end of the support base 11.
- the back frame 12 includes a pair of main frames 13 that stand rearward from both sides of the support base 11 and a connecting portion 14 disposed between the main frames 13.
- Each of the pair of main frames 13 is provided with a fixing belt guide (sometimes simply referred to as a belt guide) 15 and a lock-off device 16 as a restraining device.
- the belt guide 15 is used to secure the base portion 2 to the seat 100 (see FIG. 14) by attaching the tanda 103A, through which the shoulder belt portion 104 of the vehicle's seat belt is passed, to the buckle 103B. To the rear side of the back frame 12.
- a shoulder belt guide 150 of the first embodiment may be used.
- the lock-off device 16 is a known device that fixes the shoulder belt portion 104 to the base portion 2 by sandwiching a shoulder belt portion 104 guided to the back side of the back frame 12 between a pair of claws.
- the shoulder belt portion 104 passed between the vehicle anchor (not shown) and the fixing position by the buckle 103B is attached to the back frame along the belt guide 15 provided on one main frame 13 of the base portion 2. It is guided to the rear side of 12 and is sandwiched between lock-off devices 16 provided on the main frame 13 on the opposite side. As a result, the belt length from the anchor of the waist belt portion 105 to the lock-off device 16 is fixed to a fixed value, and the base portion 2 is fixed to the seat 100.
- a waist belt guide 34 for guiding a waist belt portion 105 of the vehicle is provided so as to protrude to both sides of the slider 5.
- the slider 5 of the base portion 2 is connected to the upper surface side of the support base 11 of the base body 2a so as to be adjustable in the front-rear direction.
- a pair of restraint belt devices 4 A fixing portion 31 of the shoulder belt 30 and a fixing portion 33 of the crotch belt 32 of the restraint belt device 4 are provided. These fixing portions 31 and 33 are also provided with a projecting upper surface force of the slider 5 so that the belts 30 and 32 can be fixed at substantially the same height as the seating surface of the seat cushion portion 6 mounted on the slider 5.
- the seat cushion section 6 includes a cushion 45 on which an infant sits and side supports 46 provided on both sides of the cushion 45.
- the seat back portion 8 includes a backrest 48 for supporting the back of the infant, a headrest 49 for supporting the back of the head, and side supports 50 and 51 protruding to the sides.
- the crotch belt 32 of the restraint belt device 4 is drawn out to the front side of the seat portion 3 through a through hole formed in the cushion 45.
- the gap formed between the side supports 50 and 51 is also drawn out to the front side of the sheet portion 3.
- a pair of support shafts 7 are provided at the rear end of the seat cushion portion 6 (see Fig. 14), and the seat cushion portion 6 is rotatable around the lower end of the seat back portion 8 and the support shaft 7.
- the seat cushion 6 is integrally mounted on the slider 5 and moves with the slider 5 forward and backward. Therefore, as the slider 5 moves back and forth, the inclination (reclining angle) of the seat back portion 8 rotatably connected to the seat cushion portion 6 changes.
- the seatback section 8 is connected to the base section 2 by connecting pins (not shown). Even if the distance between the support shaft 7 and the connecting pin changes as the slider 5 moves back and forth, the change is absorbed by the expansion and contraction mechanism of the seat back portion 8.
- a belt guide 35 for guiding the pair of shoulder belts 30 of the restraint belt device 4 is provided below the connecting portion 14 in the base portion 2.
- the shoulder belt 30 guided through the gap between the side supports 50 and 51 from the front side of the seat portion 2 to the back side of the back frame 12 by the vein guide 35 is connected to a single adjustment belt 3 7 via a connecting member 36. Is linked to
- FIG. 18 is a perspective view showing a slack adjusting mechanism 81 provided on the base portion 2.
- the slack adjusting mechanism 81 includes a guide block 82 for guiding the adjusting belt 37 to a predetermined position, and is disposed adjacent to a guide path of the adjusting belt 37 from the connecting tool 36 to the connecting shaft 38.
- the guide route of the adjustment belt 37 is as follows. Adjusting belt 37 is below connecting tool 36 While being wound around the provided guide shaft 10, it is also wound around the connecting shaft 38 via the front surface of the guide block 82 and the belt adjuster 39.
- the adjustment belt 37 is further guided between the support base 11 and the slider 5, passed through an opening / closing lever 43 provided at the front end of the slider 5, and guided along a path such that the adjustment belt 37 is pulled out to the front of the child seat 1.
- the opening / closing lever 43 is a lever that opens and closes the belt adjuster 39.
- the tundle 40 provided on the shoulder belt 30 is buckled to the tip of the crotch belt 32.
- the belt adjuster 39 allows a pull-out operation of the adjustment belt 37 to the front, and prevents a return of the adjustment belt 37 to the rear unless a predetermined release operation is performed. It is.
- FIGS. 19A to 19C are diagrams showing a state in which the seat dummy portion CH is moved and the inclination of the seat back portion 8 is changed after the dummy CH of the infant is restrained by the restraint belt device 4. is there.
- FIG. 19A shows the maximum standing position where the seat back portion 8 is most upright
- FIG. 19C shows the minimum standing position where the seat back portion 8 is most inclined
- FIG. FIG. 5 is a diagram showing an intermediate position in an intermediate state between them.
- the lengths of the belts 32 and 30 required to restrain the dummy CH are substantially invariable from the maximum standing position to the minimum standing position, but the belt guide 35 is not changed.
- the guide route of the adjustment belt 37 guided to the back side of the seat back portion 8 at each position is different at each position by the looseness adjustment mechanism 81. If the guide route of the adjustment belt 37 is not changed, the following problem occurs.
- the adjustment belt 37 is prevented from returning backward by the belt adjuster 39 described above. For this reason, for example, when the adjustment belt 37 is pulled out from the front of the seat cushion portion 6 and is fixed so that a proper tightening state is obtained at the maximum standing position, the slider 5 (the seat cushion) is moved from the maximum standing position. When the part 6) is moved forward, the length of the belts 30, 32 pulled out to the front side of the seat part 3 becomes insufficient, and the slackness of the belt gradually decreases as the force is directed to the maximum standing position. Therefore, when the inclination of the seat back portion 8 changes, the belt gradually tightens.
- the seat 1 is provided with a slack adjusting mechanism 81 for changing the guide route of the adjusting belt 37 to cope with a change in the slack degree of the belt caused by a change in the inclination of the seatback portion 8.
- the slack adjusting mechanism 81 includes a guide block 82, an intervening member 83, and a link 84.
- the guide block 82 is provided on the bridge portion 27 bridged between the pair of main frames 13.
- the guide block 82 is adjacent to the guide path of the adjustment belt 37 described above and moves forward and backward in a direction crossing this path.
- the intervening member 83 is provided so as to be slidable with respect to the bridge 27 in the vertical direction of the seat 100.
- the intervening member 83 moves along the guide block 82 to move the guide block 82 forward and backward.
- the link 84 connects the slider 5 and the intervening member 83 to link the forward and backward movement of the slider 5 and the sliding movement of the intervening member.
- the bridge portion 27 has a protruding portion 27a that protrudes downward from a central portion thereof.
- a pair of guide plates 86 are provided at both ends of the protrusion 27a in the left-right direction of the seat 100 so as to stand in front of the seat 100, respectively.
- Each guide plate 86 is formed with a long hole 86a, and the opening direction of the long hole 86a is oriented in the left-right direction of the seat 100.
- the above-described guide block 82 is disposed between the pair of guide plates 86.
- a pair of pins 82a provided on the guide block 82 are inserted into the elongated holes 86a of the guide plate 86 (see also FIG. 20).
- the guide block 82 can move within the range of the long hole 86a while fitting the pin 82a and the long hole 86a.
- a pair of pins 27b is provided at both ends of the protruding portion 27a of the bridge portion 27, respectively.
- a spring means 85 extends between the pin 27b and the pin 82a of the guide block 82. As a result, the guide block 82 is biased rearward of the seat 100 (in a direction away from the seat back portion 8).
- the intervening member 83 is provided on the protruding portion 27a of the bridge 27 so as to be movable in the upward and downward directions of the seat 100 along the elongated hole 27c formed in the bridge 27.
- the intervening member 83 has a contact surface 83a that comes into contact with the guide block 82 and is inclined at an acute angle above the seat 100.
- FIGS. 20A and 20B when the intervening member 83 moves above the seat 100 (upward in the figure), the intervening member 83 slides between the protrusion 27a and the guide block 82, and the tension of the spring means 85 is pulled. Push the guide block 82 against the force in front of the seat 100 (seat back In the direction approaching the lock section 8).
- the guide block 82 is urged rearward of the seat 100, and thus moves rearward of the seat 100 along the contact surface 83a.
- the intervening member 83 and the slider 5 are connected by a pair of links 84.
- the link 84 links the forward and backward movement of the slider 5 and the up and down movement of the interposition member 83.
- the link 84 has one end inserted into an elongated hole 83b formed in the interposition member 83, and is connected to the seat 100 so as to be movable and rotatable upward and downward in the range of the elongated hole 83b (FIGS. 20A and 20A). (See also Figure 20B).
- the other end of the link 84 is inserted into a hole of the connecting portion 5a provided on the slider 5, and is rotatably connected to the hole.
- the slider member 83 moves along the protrusion 27a via the link 84. Then, the guide block 82 that comes into contact with the contact surface 83a of the slider member protrudes forward of the seat 100, and the adjustment belt 37 wound around the guide block 82 between the guide shaft 10 and the connection shaft 38 is attached to the seat 100. Gently push forward. Therefore, the slack of the adjustment belt, which is not so likely as the seat back portion 8 stands up, can be adjusted to an appropriate amount. On the other hand, when the slider 5 moves forward with respect to the seat 100, the adjustment belt 37 is guided rearward by the guide block 82 while gradually changing its guide path.
- the slack of the adjustment belt 37 which tends to be insufficient, can be adjusted to an appropriate amount. Therefore, even if the position of the slider 5 changes, the change in the amount of slack of the shoulder belt 30 can be suppressed, and the infant seated on the seat can be appropriately restrained.
- the slack adjusting mechanism 81 is not limited to the above-described embodiment.
- FIGS. 21A to 25C are diagrams showing other forms of the slack adjusting mechanism.
- FIG. 21A and FIG. 21B are diagrams in which the slackness adjusting mechanism 81 is configured using a cam member.
- the cam member 89 is disposed adjacent to the guide path of the adjustment belt 37.
- the rotation shaft of the cam member 89 is attached to the base body 2a.
- the cam member 89 and the slider 5 are connected via a link 90 as a linking means. Therefore, when the slider 5 moves backward, the cam member 89 rotates counterclockwise via the link 90, and pushes back the adjusting belt 37 drawn between the guide shaft 10 and the slider 5 to retreat. of Detour the guidance route. Thereby, the slack of the adjustment belt 37 can be adjusted.
- FIG. 21A the cam member 89 is disposed adjacent to the guide path of the adjustment belt 37.
- the rotation shaft of the cam member 89 is attached to the base body 2a.
- the cam member 89 and the slider 5 are connected via a link 90 as a linking means. Therefore, when the slider 5 moves backward, the cam member
- 21B is a diagram showing an example in which, instead of the link 90, a pion 97 provided on the cam member 89 and a rack 96 provided on the slider 5 are used as linking means.
- a pion 97 provided on the cam member 89 and a rack 96 provided on the slider 5 are used as linking means.
- FIGS. 22A to 22D are diagrams showing a configuration of the slack adjusting mechanism 81 using the wrap pin 91 as a guide member.
- the wrap pin 91 is provided on the link 90 while wrapping the adjustment belt 37.
- One end of the link 90 is rotatably connected to the slider 5.
- the other end of the link 90 is inserted into a curved groove 95 provided on the base body 2a, and is connected to the base body 2a so as to be movable in the groove 95.
- the link 90 and the groove 95 function as linking means for linking the forward and backward movement of the slider 5 and the movement of the wrap pin 91.
- the other end of the link 90 moves to the upper side of the seat 100 along the groove 95 via the link 90, and the adjustment belt 37 wound around the winding pin 91 is guided upward.
- the guide route is bypassed.
- the slack of the adjustment belt 37 can be adjusted according to the movement of the slider 5.
- the groove 95 may be arranged so that when the slider 5 is moved to the rear of the seat 100, the other end of the link 90 moves below the seat 100.
- two links 90 may be used as means for moving the winding pin 91.
- the link 90 may be provided rotatably about a fulcrum 98 fixed on the base body 2a.
- a linking means for linking the forward and backward movement of the slider 5 with the movement of the winding pin 91 a pinion 97 provided with the winding pin 91 and a rack 96 provided on the slider 5 are provided. It may be configured in combination.
- FIG. 23A to FIG. 23D show other forms of the slack adjusting mechanism 81 and the adjusting belt 37.
- the adjustment belt 37 is configured so that the belts have portions facing each other, and the slack adjustment mechanism 81 is arranged between them. . According to this, a more reliable operation is possible than changing the guide route of the adjustment belt 37 in one direction.
- the portion where the belts face each other may be configured by stacking two adjustment belts 37, or may be configured by dividing one belt into two.
- figure 23A The same components as those described above among the configurations shown in FIG. 23D are denoted by the same reference numerals, and detailed description thereof will be omitted. In FIG.
- a balloon 88 that expands or contracts with the movement of the slider 5 is used as the slack adjusting mechanism 81.
- a piston is connected to the slider 5, and the balloon 88 can be expanded or contracted by moving the piston in the cylinder.
- the guide route of the adjustment belt 37 can be changed.
- the shoulder belt 30 may be configured as described above.
- FIG. 24A to FIG. 24C show still another embodiment of the slack adjusting mechanism 81.
- FIG. 24A shows a modification of the cam member 89 using a disk 89a.
- the disk 89a rotates around a central axis fixed on the base body 2a, and is connected to the slider 5 via the link 90.
- the disk 89a is provided with a belt adjuster 39, which restrains the upward movement of the adjustment belt 37. Therefore, when the slider 5 moves backward, the disk 89a rotates counterclockwise, and the adjustment belt 37 can be pulled down to adjust the slack of the adjustment belt 37.
- the end of the adjustment belt 37 may be fixed to the disk 89a instead of the belt adjuster 39.
- FIG. 24B shows another embodiment of the slide block 82 described above.
- the moving amount of the adjustment belt 37 can be changed intermittently instead of continuously.
- FIG. 24C is a diagram showing a configuration using the winding mechanism 92 as a means for adjusting the slack of the belt.
- a pion 97 provided with a drum 93 for winding up the adjustment belt 37 and a rack 96 provided on the slider 5 are combined.
- the pions 97 engaging with the rack 96 rotate, and the rotation of the drums 93 provided on the pions 97 rotates the adjustment belt 37 by a predetermined amount. Can be taken. Therefore, it is possible to adjust the slack of the adjustment belt 37.
- the adjustment belt 37 wound on the drum 93 is rewound by a predetermined amount. Therefore, according to this configuration, it is possible to adjust the slack of the adjustment belt 37 in accordance with the movement of the slider 5.
- FIG. 25A to FIG. 25C are diagrams showing a form in which the arrangement of the slack adjusting mechanism 81 is changed.
- the slack adjusting mechanism 81 is provided in the seat back portion 8.
- the seat back portion 8 and the seat cushion portion 6 (slider 5) are connected rotatably about a support shaft 7.
- the seat cushion section 8 is provided with a winding pin 91 around which the adjustment belt 37 is wound.
- the seat cushion 8 (slider 5) is moved rearward, the seatback 8 rises, and this movement is used to pull up the adjustment belt 37 wound around the winding pin 91.
- FIG. 25B shows an embodiment in which the slider 5 is provided with the slack adjusting mechanism 81.
- one end of the crotch belt 31 constituting the restraint belt device 4 is provided on the base main body 2a so as to penetrate the slider 5, and the upper surface force of the slider 5 is also increased to the fixed point of the crotch belt 32 to the crotch belt 31.
- a winding pin 91 is provided in the middle of the guide route. Accordingly, when the slider 5 moves rearward, the wrapping pin 91 moves rearward together with the slider 5, and the crotch belt 32 wrapped around the pin 91 is pushed back and moved back, and the belt 30 fed out to the front of the seat portion 3. , 32 are adjusted in conjunction with the movement of the slider 5.
- a part of the crotch belt 32 functions as the adjustment belt 37.
- FIG. 25C shows an example in which the slack adjusting mechanism 81 is provided on the back surface side of the slider 5.
- the cam member 89 is rotatably provided on the base body 2a below the slider 5. Further, the cam member 89 and the slider 5 are rotatably provided via a link 90. Therefore, when the slider 5 is moved backward, the cam member 89 is rotated clockwise by the link 90, and the adjustment belt 37 wound around the guide shafts 10, 10 is pushed away. The slack of the adjustment belt 37 can be adjusted in conjunction with the movement.
- FIGS. 26A and 26B One example is shown in FIGS. 26A and 26B.
- a pin 97 provided with a wrapping pin 91 and rotatable with respect to the base body 2a and a rack 97 provided on the slider 5 are combined.
- the rear end of the slider 5 is provided so as to interfere with the guide path of the adjustment belt 37 as the slider 5 moves. Therefore, when the slider 5 moves rearward, the wrapping pin 91 moves forward while winding the adjustment belt 37, and at the same time, the rear end of the slider 5 moves the adjustment belt 37 rearward. Push away.
- FIG. 26B is a diagram showing an embodiment in which the mechanism using the cam member 89 described in FIG. 21A and the mechanism shown in FIG. 25B are combined to form the slackness adjusting mechanism 81.
- the action of pushing the adjustment belt 37 backward by the cam member 89 and the action of pulling down the crotch belt 32 that has penetrated the slider 5 work simultaneously, and the adjustment is performed in conjunction with the movement of the slider 5.
- the slack of the belt 37 can be adjusted.
- the base part 2 is fixed by using fixing means other than the vehicle seat belt, such as a fixing device conforming to the ISOFIX method, such as a force for fixing the child seat using the vehicle seat belt. It may be fixed to the seat 100.
- fixing means other than the vehicle seat belt such as a fixing device conforming to the ISOFIX method, such as a force for fixing the child seat using the vehicle seat belt. It may be fixed to the seat 100.
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- General Health & Medical Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
Description
Claims
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003407086A JP2005162150A (ja) | 2003-12-05 | 2003-12-05 | チャイルドシート |
JP2003407059A JP4520733B2 (ja) | 2003-12-05 | 2003-12-05 | チャイルドシート |
JP2003-407112 | 2003-12-05 | ||
JP2003-407059 | 2003-12-05 | ||
JP2003407112A JP4520734B2 (ja) | 2003-12-05 | 2003-12-05 | チャイルドシート |
JP2003-407086 | 2003-12-05 |
Publications (1)
Publication Number | Publication Date |
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WO2005053998A1 true WO2005053998A1 (ja) | 2005-06-16 |
Family
ID=34657742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/018029 WO2005053998A1 (ja) | 2003-12-05 | 2004-12-03 | チャイルドシート |
Country Status (2)
Country | Link |
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TW (1) | TW200520994A (ja) |
WO (1) | WO2005053998A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8038212B2 (en) | 2005-06-04 | 2011-10-18 | Space Net Technology Limited | Child vehicle seating system |
US8152182B2 (en) | 2005-06-04 | 2012-04-10 | Space Net Technology Limited | Pushchair |
CN105492248A (zh) * | 2013-08-23 | 2016-04-13 | 康贝株式会社 | 儿童座椅 |
CN105730292A (zh) * | 2014-12-09 | 2016-07-06 | 宝钜儿童用品香港股份有限公司 | 安全座椅底座 |
WO2022136371A1 (en) * | 2020-12-25 | 2022-06-30 | Bambino Prezioso Switzerland Ag | Safety belt adjustment mechanism and safety seat using the same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020019150A1 (en) * | 2018-07-24 | 2020-01-30 | Britax Childcare (Zhongshan) Company Limited | Child safety seat |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS53121634U (ja) * | 1977-03-04 | 1978-09-27 | ||
JPH0286812U (ja) * | 1988-12-24 | 1990-07-10 | ||
JP2001138787A (ja) * | 1999-11-16 | 2001-05-22 | Minoru Kasei Kk | 背もたれ付ジュニアシート |
JP2001277918A (ja) * | 2000-03-31 | 2001-10-10 | Riiman Kk | チャイルドシートの安全ベルト長さ調整装置 |
JP2003104100A (ja) * | 2001-09-27 | 2003-04-09 | Combi Corp | チャイルドシート |
-
2004
- 2004-12-03 WO PCT/JP2004/018029 patent/WO2005053998A1/ja active Application Filing
- 2004-12-03 TW TW093137397A patent/TW200520994A/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53121634U (ja) * | 1977-03-04 | 1978-09-27 | ||
JPH0286812U (ja) * | 1988-12-24 | 1990-07-10 | ||
JP2001138787A (ja) * | 1999-11-16 | 2001-05-22 | Minoru Kasei Kk | 背もたれ付ジュニアシート |
JP2001277918A (ja) * | 2000-03-31 | 2001-10-10 | Riiman Kk | チャイルドシートの安全ベルト長さ調整装置 |
JP2003104100A (ja) * | 2001-09-27 | 2003-04-09 | Combi Corp | チャイルドシート |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8038212B2 (en) | 2005-06-04 | 2011-10-18 | Space Net Technology Limited | Child vehicle seating system |
US8152182B2 (en) | 2005-06-04 | 2012-04-10 | Space Net Technology Limited | Pushchair |
CN105492248A (zh) * | 2013-08-23 | 2016-04-13 | 康贝株式会社 | 儿童座椅 |
CN105492248B (zh) * | 2013-08-23 | 2020-06-30 | 康贝株式会社 | 儿童座椅 |
CN105730292A (zh) * | 2014-12-09 | 2016-07-06 | 宝钜儿童用品香港股份有限公司 | 安全座椅底座 |
CN105730292B (zh) * | 2014-12-09 | 2018-07-17 | 宝钜儿童用品香港股份有限公司 | 安全座椅底座 |
WO2022136371A1 (en) * | 2020-12-25 | 2022-06-30 | Bambino Prezioso Switzerland Ag | Safety belt adjustment mechanism and safety seat using the same |
Also Published As
Publication number | Publication date |
---|---|
TW200520994A (en) | 2005-07-01 |
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