• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A child car seat is capable of being easily set on a passenger seat (7) of a vehicle and of simply and sufficiently tightening a seat belt (4). The child car seat to be fixedly held on a passenger seat (7) of a vehicle by a seat belt (4) has a seat belt fastening mechanism (20) for fastening a diagonal section (4 a) of the seat belt (4), a seat belt tightening mechanism (11) for deflecting a lap section (4 b) of a fixed length of the seat belt (4), and a locking mechanism (15) for locking the seat belt tightening mechanism (11). The lap section (4 b) of the seat belt (4) extended across a base (10) is deflected and is kept in a deflected state to tighten the seat belt (4).
    公开号:US20010004163A1
    申请号:US09/741,428
    申请日:2000-12-21
    公开日:2001-06-21
    发明作者:Kojiro Yamazaki
    申请人:Combi Corp；
    IPC主号:B60N2-286
    专利说明:
    [0001] 1. Field of the Invention [0001]
    [0002] The present invention relates to a child car seat and, more particularly, to a child car seat to be mounted on a passenger seat of a vehicle and fastened to the passenger seat by a seat belt. [0002]
    [0003] 2. Description of Related Art [0003]
    [0004] Referring to FIG. 9, a known child car seat [0004] 1 has a seat body 2 and a base 3 supporting the seat body 2 thereon. The seat body 2 is formed integrally with the base 3 or is supported on the base 3 so as to be turnable or tiltable relative to the base 3.
    [0005] A seat belt [0005] 4 of the vehicle is passed through a belt hole 3 a formed in the base 3, and a tongue plate 5 connected to the seat belt 4 is engaged with a latch 6 anchored to the floor of the vehicle to hold the child car seat 1 fixedly on a passenger seat 7 of the vehicle.
    [0006] When fastening the child car seat [0006] 1 to the passenger seat 7 by a lap-and-diagonal seat belt 4, a belt section (diagonal section) 4 a extending from the tongue plate 5 is connected to a retractor, not shown, and hence is the diagonal section 4 a tends to become loose. Therefore, when the lap-and-diagonal seat belt 4 is used, the diagonal section 4 a and a belt section (lap section) 4 b extending from the tongue plate 5 are fastened together by a clip 8.
    [0007] A method of setting the child car seat [0007] 1 on the passenger seat 7 requires the diagonal section 4 a and the lap section 4 b to be tensioned sufficiently when fastening together the diagonal section 4 a and the lap section 4 b by the clip 8. When setting the child car seat 1 on the passenger seat 7, the diagonal section 4 a and the lap section 4 b are tensioned by attaching the clip 8 to the diagonal section 4 a and the lap section 4 b while the child car seat 1 is pressed firmly against the passenger seat 7 and the diagonal section 4 a is pulled. However, such child car seat mounting work needs to perform simultaneously two actions for pressing the child car seat 1 against the passenger seat 7 and pulling the diagonal section 4 a, which is very troublesome and requires both physical strength and skill. SUMMARY OF THE INVENTION
    [0008] It is an object of the present invention to provide a child car seat easy to set on a passenger seat of a vehicle and capable of enabling a seat belt for fastening the child car seat in place to be simply and sufficiently tensioned. [0008]
    [0009] According to the present invention, a child car seat to be set and fixedly held on a passenger seat of a vehicle by a seat belt extended between a retractor and a fixed member, comprises a base to be set on the passenger seat; a seat body to be set on the base; a seat belt fastening mechanism supported on the base and for fastening a predetermined portion of the seat belt extending to the retractor; a seat belt tightening mechanism supported on the base and for tightening a section extending between the fixed member and the predetermined portion of the seat belt by deflecting the same section toward the passenger seat; and a locking mechanism for locking the seat belt tightening mechanism to keep tight the seat belt tightened by the seat belt tightening mechanism. [0009]
    [0010] Preferably, the seat belt fastening mechanism includes a clip set on the base and capable of clipping a portion of the seat belt. [0010]
    [0011] Preferably, the seat belt tightening mechanism includes a shaft supported on the base and a lever having a base end supported on the shaft, and is capable of tightening the seat belt by deflecting the seat belt by turning the lever on the shaft. [0011]
    [0012] Preferably, the seat belt tightening mechanism includes a support arm projecting from the base, and a screw provided in the support arm, and is capable of tightening the seat belt by deflecting the seat belt by propelling the screw. [0012]
    [0013] Preferably, the locking mechanism is capable of locking the seat belt tightening mechanism at one of a plurality of positions respectively corresponding to deflections of the seat belt deflected by the seat belt tightening mechanism. [0013]
    [0014] Preferably, the seat belt has a diagonal section extending from a tongue plate to be latched at a predetermined position on the vehicle to the retractor and a lap section extending from the tongue plate to the fixed member, the diagonal section is fastened by the seat belt fastening mechanism, and the lap section is tightened by the seat belt tightening mechanism. [0014]
    [0015] According to the present invention, the seat belt of the vehicle is put on the base, the length of a section of the seat belt is fixed by the seat belt fastening mechanism, and then the seat belt can be tightened by the seat belt tightening mechanism. Thus, work for setting the child car seat on the passenger seat of the vehicle does not need to perform simultaneously two actions for keeping the length of the seat belt fixed and tightening the seat belt. Consequently, the seat belt can be easily put on the child car seat and the seat belt used for fastening the child car seat to the passenger seat of the vehicle can be sufficiently tightened. [0015]
    [0016] According to the present invention, the clip set on the base may be used as the seat belt fastening mechanism and hence there might be no possibility that the clip is lost. When the clip is attached to the back part of the base, both hands can be used for engaging the seat with the clip at a high position, which facilitates work for fastening the seat belt. [0016]
    [0017] According to the present invention, the seat belt tightening mechanism may include the lever having the base end supported on the shaft supported on the base, and the lever may be turned on the shaft to press the seat belt by the free end of the lever. Thus, a sufficiently high tensile force can be exerted on the seat belt. [0017]
    [0018] According to the present invention, the seat belt tightening mechanism may include the screw supported on the support arm projecting from the base, and the screw may be propelled to press the seat belt. Thus, an optimum tensile force can be optionally selected. [0018]
    [0019] According to the present invention, the locking mechanism is capable of locking the seat belt tightening mechanism at an optional one of a plurality of positions respectively corresponding to deflections of the seat belt pressed by the seat belt tightening mechanism, so that an optimum tensile force can be optionally selected. [0019] BRIEF DESCRIPTION OF THE DRAWINGS
    [0020] FIG. 1 is a schematic perspective view of a child car seat in a preferred embodiment of the present invention; [0020]
    [0021] FIG. 2 is a perspective view of a seat belt tightening mechanism and a locking mechanism included in the child car seat shown in FIG. 1; [0021]
    [0022] FIG. 3 is a partly sectional, schematic side elevation of the locking mechanism included in the child car seat shown in FIG. 1; [0022]
    [0023] FIG. 4 is a perspective view of a seat belt fastening mechanism included in the child car seat shown in FIG. 1; [0023]
    [0024] FIG. 5 is a front elevation of the child car seat shown in FIG. 1, in which a seat belt is put on a base included in the child car seat; [0024]
    [0025] FIG. 6 is a sectional view taken on line VI-VI in FIG. 5; [0025]
    [0026] FIG. 7 is a schematic view of a locking mechanism in a modification of the locking mechanism included in the child car seat shown in FIG. 1; [0026]
    [0027] FIG. 8 is a schematic sectional view of a seat belt tightening mechanism in a modification of the seat belt tightening mechanism included in the child car seat shown in FIG. 1; and [0027]
    [0028] FIG. 9 is a perspective view of a conventional child car seat fastened to a passenger seat by a seat belt. [0028] DESCRIPTION OF THE PREFERRED EMBODIMENTS
    [0029] A child car seat in a preferred embodiment of the present invention will be described with reference to FIGS. [0029] 1 to 6.
    [0030] Referring to FIG. 1, a child car seat in a preferred embodiment of the present invention includes a base [0030] 10 to be set on a passenger seat 7 of a vehicle, and a seat body, not shown, to be set on the base 10. The base 10 has a back plate 10 a, a bottom plate 10 b and side plates 10 c and 10 c extended between the sides of the back plate 10 a and the bottom plate 10 b, respectively. Recesses 10 d and 10 d are formed in inclined surfaces of the side plates 10 c and 10 c, respectively. The seat body may be similar to that of the conventional child car seat as shown in FIG. 9 and may be attached to the base 10 by a method similar to a conventional method.
    [0031] The base [0031] 10 is fastened to the passenger seat 7 by a lap-and-diagonal seat belt 4. The seat belt 4 has a diagonal section 4 a extending between a tongue plate 5 (FIG. 5) to be engaged with a latch 6 (FIG. 5) connected to the floor of the vehicle and a retractor, not shown, and a lap section 4 b extending between the tongue plate 5 (FIG. 5) and an anchor (fixed member) 9 (FIG. 5).
    [0032] A seat belt tightening mechanism [0032] 11 is set on the back plate 10 a of the base 10. The seat belt tightening mechanism 11 includes a lever 12 for pressing the lap section 4 b of the seat belt 4 toward the passenger seat 7.
    [0033] The lever [0033] 12 has a base end supported on a shaft 13 supported on the side walls of an opening 14 formed in the back plate 10 a. The lever 12 is turned on the shaft 13 to press the lap section 4 b of the seat belt 4 to tighten the same. The lever 12 is biased constantly upward by a spring, not shown.
    [0034] Referring to FIG. 2, a locking mechanism [0034] 15 for locking the lever 12 is disposed near the base end of the lever 12 to keep the lap section 4 b of the seat belt 4 being tightened. The locking mechanism 15 has a toothed disk 16 provided with a plurality of teeth 16 a on its circumference, and fixedly combined with the lever 12. The locking mechanism 15 has a retaining pawl 17 having a working end 17 a. The retaining pawl 17 is supported for turning on the back plate 10 a of the base 10 by a pin 17 b. The retaining pawl 17 is biased toward the toothed disk 16 by a plate spring 18 so that the working end 17 a of the retaining pawl 17 engages the teeth 16 a of the toothed disk 16 selectively. Thus, the lever 12 can be locked at a desired one of a plurality of positions respectively corresponding to deflections of the lap section 4 b of the seat belt 4.
    [0035] An operating rod [0035] 19 is supported for sliding on the base 10. The operating rod 19 has one end engaging the retaining pawl 17 and the other end provided with a knob 19 a. The knob 19 a of the operating rod 19 projects forward through an opening formed in the back plate 10 a of the base 10 as shown in FIG. 1. The knob 19 a is pulled forward to disengage the working end 17 a of the retaining pawl 17 from the tooth 16 a of the toothed disk 16 by turning the retaining pawl 17 on the pin 17 b.
    [0036] A seat belt fastening mechanism [0036] 20 set on the back plate 10 a of the base 10 as shown in FIG. 1. The seat belt fastening mechanism 20 has a rotary disk 21. As shown in FIG. 4, the rotary disk 21 is provided with a slot 22, through which the diagonal section 4 a of the seat belt 4 is extended. A clip 23 is fastened to the bottom surface 22 a of the slot 22. The clip 23 is formed by bending a plate in a shape having a U-shaped cross section. The clip 23 has a back wall fastened to the bottom surface 22 a of the slot 22, and a front wall provided with two slits 23 a and 23 a dividing the front wall into a middle portion 23 b and two side portions 23 c and 23 c lying on the opposite sides of the middle portion 23 b, respectively. The lower end of the middle section 23 b is inserted in one of the side walls of the slot 22. The lower ends of the side portions 23 c and 23 c are free.
    [0037] The diagonal section [0037] 4 a of the seat belt 4 is tucked in spaces under the side portions 23 c and 23 c so that the diagonal section 4 a is buckled and extends under the side portions 23 c and 23 c and over the middle portion 23 b as indicated by two-dot chain lines in FIG. 4.
    [0038] A procedure for fixedly setting the child car seat on the passenger seat [0038] 7 of the vehicle will be described hereinafter.
    [0039] Step 1: The base [0039] 10 is set on the passenger seat 7 of the vehicle.
    [0040] Step 2: The tongue plate [0040] 5 of the seat belt 4 is engaged with the latch 6 with the lap section 4 b of the seat belt 4 extended under the lever 12 of the seat belt tightening mechanism 11.
    [0041] Step 3: The diagonal section [0041] 4 a of the seat belt 4 is pulled toward the tongue plate 5 and is engaged with the clip 23 of the seat belt fastening mechanism 20.
    [0042] Step 4: The lever [0042] 12 of the seat belt tightening mechanism 11 is turned downward to deflect the lap section 4 b downward. Consequently, the lap section 4 b extending between the recesses 10 d and 10 d of the base 10 is deflected downward by a distance L as shown in FIG. 6. Since the seat belt 4 is held fixedly by the anchor 9 and the seat belt fastening mechanism 20, the length of the lap section 4 a extending between the recesses 10 d and 10 d of the base 10 is fixed. Therefore, the child car seat sinks into the passenger seat 7 by a depth corresponding to the deflection L, and the lap section 4 b is tightened when the lap section 4 b is depressed by the deflection L.
    [0043] This tight state of the seat belt [0043] 4 is maintained by the locking mechanism 15 that locks the lever 12.
    [0044] When removing the child car seat from the passenger seat [0044] 7 of the vehicle, the lever 12 is unlocked by pulling the knob 19 a of the operating rod 19 (FIGS. 2 and 3). Consequently, the seat belt 4 is relaxed. Then, the tongue plate 5 is disengaged from the latch 6, the seat belt 4 is separated from the seat belt fastening mechanism 20 and the child car seat is removed from the passenger seat 7 of the vehicle.
    [0045] Thus, the seat belt [0045] 4 can be tightened by operating the lever 12 of the seat belt tightening mechanism 11 after the length of a section of the seat belt 4 has been fixed by the seat belt fastening mechanism 20. Therefore, work for setting the child car seat on the passenger seat of the vehicle does not need to perform simultaneously two actions for keeping the length of the seat belt fixed and tightening the seat belt. Consequently, the seat belt can be easily put on the child car seat and the seat belt used for fastening the child car seat to the passenger seat of the vehicle can be sufficiently tightened.
    [0046] It is to be understood that the foregoing embodiment is only an example of the present invention and the present invention is not limited thereto in its practical application. [0046]
    [0047] For example, a locking mechanism [0047] 15 shown in FIG. 7 may be employed. This locking mechanism 15 has a locking lever 30 provided with a plurality of teeth 30 a, having a base end pivotally supported on the bottom plate 10 b of the base 10, and biased clockwise, as viewed in FIG. 7, by a spring 31. When tightening the seat belt 4, the lever 12 is turned counterclockwise, as viewed in FIG. 7, and the locking lever 30 is turned clockwise to engage a desired one of the teeth 30 a of the locking lever 30 with the front end of the lever 12.
    [0048] The lap section [0048] 4 b of the seat belt 4 may be tightened by a seat belt tightening mechanism formed by projecting a support arm 32 provided with a threaded hole from the back plate 10 a of the base 10, screwing a screw 33 in the threaded hole of the support arm 32 and rotatably connecting a belt holder 34 to the extremity of the screw 33. When tightening the lap section 4 b of the seat belt 4, the lap section 4 b is extended under the belt holder 34 and the screw 33 is propelled in the threaded hole of the support arm 32 to deflect the lap section 4 b by a desired deflection so that the lap section 4 b may be tightened.
    权利要求:
    Claims (6)
    [1" id="US-20010004163-A1-CLM-00001] 1. A child car seat to be set and fixedly held on a passenger seat of a vehicle by a seat belt extended between a retractor and a fixed member, said child car seat comprising:
    a base to be set on the passenger seat;
    a seat body to be set on the base;
    a seat belt fastening mechanism supported on the base and for fastening a predetermined portion of the seat belt extending to the retractor;
    a seat belt tightening mechanism supported on the base and for tightening a portion extending between the fixed member and the predetermined section of the seat belt by deflecting the same section toward the passenger seat; and
    a locking mechanism for locking the seat belt tightening mechanism to keep tight the seat belt tightened by the seat belt tightening mechanism.
    [2" id="US-20010004163-A1-CLM-00002] 2. The child car seat according to
    claim 1 , wherein the seat belt fastening mechanism includes a clip set on the base and capable of clipping a portion of the seat belt.
    [3" id="US-20010004163-A1-CLM-00003] 3. The child car seat according to
    claim 1 , wherein the seat belt tightening mechanism includes a shaft supported on the base and a lever having a base end supported on the shaft, and is capable of tightening the seat belt by deflecting the seat belt by turning the lever on the shaft.
    [4" id="US-20010004163-A1-CLM-00004] 4. The child car seat according to
    claim 1 , wherein the seat belt tightening mechanism includes a support arm projecting from the base, and a screw supported in the support arm, and is capable of tightening the seat belt by deflecting the seat belt by propelling the screw.
    [5" id="US-20010004163-A1-CLM-00005] 5. The child car seat according to
    claim 1 , wherein the locking mechanism is capable of locking the seat belt tightening mechanism at one of a plurality of positions respectively corresponding to deflections of the seat belt deflected by the seat belt tightening mechanism.
    [6" id="US-20010004163-A1-CLM-00006] 6. The child car seat according to
    claim 1 , wherein the seat belt has a diagonal section extending from a tongue plate to be latched at a predetermined position on the vehicle to the retractor and a lap section extending from the tongue plate to the fixed member, the diagonal section is fastened by the seat belt fastening mechanism, and the lap section is tightened by the seat belt tightening mechanism.
    类似技术:
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    同族专利:
    公开号 | 公开日
    DE60019393D1|2005-05-19|
    DE60019393T3|2009-10-15|
    EP1110806B2|2009-04-01|
    ES2238246T5|2009-06-19|
    US6508510B2|2003-01-21|
    JP4846080B2|2011-12-28|
    KR20010067441A|2001-07-12|
    EP1110806A1|2001-06-27|
    DE60019393T2|2006-03-09|
    EP1110806B1|2005-04-13|
    JP2001180348A|2001-07-03|
    ES2238246T3|2005-09-01|
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    法律状态:
    2000-12-21| AS| Assignment|Owner name: COMBI CORPORATION, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:YAMAZAKI, KOJIRO;REEL/FRAME:011398/0473 Effective date: 20001212 |
    2006-06-19| FPAY| Fee payment|Year of fee payment: 4 |
    2010-08-30| REMI| Maintenance fee reminder mailed|
    2011-01-21| LAPS| Lapse for failure to pay maintenance fees|
    2011-02-21| STCH| Information on status: patent discontinuation|Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
    2011-03-15| FP| Expired due to failure to pay maintenance fee|Effective date: 20110121 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP1999-362980||1999-12-21||
    JP36298099A|JP4846080B2|1999-12-21|1999-12-21|child seat|
    JP11-362980||1999-12-21||
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