CN2277912Y

CN2277912Y - Safety foot support-board

Info

Publication number: CN2277912Y
Application number: CN 96218644
Authority: CN
Inventors: 斯蒂芬K·陈; 保罗H·法里斯
Original assignee: AMERICAN CHESJIE CHILDREN ARTICLE Co Ltd
Current assignee: AMERICAN CHESJIE CHILDREN ARTICLE Co Ltd
Priority date: 1996-08-13
Filing date: 1996-08-13
Publication date: 1998-04-08
Anticipated expiration: 2006-08-13

Abstract

The utility model relates to a safe toe board. The toe board is connected with a backrest through a cable; when the backrest lies in a lying position, the toe board automatically rises to an upper position because of the traction function of the cable; the toe board is stopped at the position of a front leading handle of a baby carrier; so, a leg stretching port is covered to prevent a baby form sliding out; when the backrest lies in an upright sitting position, the toe board automatically lowers down to a lower position because of the action of the gravity; in addition, a buffer gear and a gear shifting mechanism are also arranged to guarantee safety and effectiveness.

Description

Safe footrest apparatus

The utility model relates to perambulator, especially a kind of parts that are specially adapted for perambulator.

The brace panel that can adapt to link pin is arranged on the common toe board, and this link pin is used to connect toe board to frame for baby cart.Conventional route is by a metal radius stay toe board to be put into different positions to regulate the seat, and this radius stay inserts from brace panel, then it is fixed to the certain position place of frame for baby cart.There is a breach that radius stay is snapped on the brace panel, thereby makes toe board can be placed on different positions.The method of this routine needs customer or user to adjust the toe board position at needs to manually locate when adapting to the seat.In use people often need set level spinal support so that allow the baby lie low or sleep.Because easily carelessness and toe board is not navigated to upperly of people promptly covers the position of port for stretching legs, the baby might skid off from port for stretching legs, even it is injured or dead to be fasten, and child also easily because since curiosity and labour contractor stretch into port for stretching legs and fasten.So common perambulator toe board design safety inadequately.Because the above-mentioned toe board of use system has caused the ID incident, the US Department of Commerce Consume Product Safety Commission has proposed a Compulsory Feature, and promptly toe board must be at vertical position so that toe board can cover the port for stretching legs between edge-of-the-seat and leading handle when the seat gets off.Can prevent like this when bed flat position is set level fully in the seat that the baby slides into one of them port for stretching legs and injured or strangle.Also avoided simultaneously child because curious labour contractor stretches into port for stretching legs and strangled.

The purpose of this utility model is to provide a kind of safe footrest apparatus, make toe board can the seat backrest fold-down when lying low automatically to the upper port for stretching legs that covers, and make the seat that accidental moving can not taken place, safety and comfort prevent the accident generation more.

The utility model is achieved in that a kind of safe footrest apparatus, include toe board, spinal support and gear mechanism, spinal support can be in three positions respectively, the position lies low, lean to position and perpendicular seat, toe board is connected with one or more than one cables with spinal support, cable is by front wheel on the vehicle frame and back pulley, the length of cable equals cable attachment point on the toe board and adds that to the distance of front wheel the advancing slip distance that takes turns to back pulley adds the distance of back pulley to the cable attachment point of spinal support, the wherein advancing slip distance that takes turns to back pulley is a definite value, toe board cable attachment point when the next equals back pulley to the distance of front wheel and toe board cable attachment point when upper to the difference of the distance of front wheel and is in the distance of the cable attachment point when lying low to spinal support, like this when spinal support lies low, toe board arrives upper owing to the draw of cable automatically, be parked in the leading of perambulator the place, therefore just covered port for stretching legs, prevent that the baby from skidding off, when spinal support erects seat, toe board arrives the next automatically owing to the effect of gravity, it is safer effective to guarantee also to be provided with buffer gear and gear mechanism in addition.

The utility model is owing to adopted the safe footrest apparatus that can cover port for stretching legs automatically, can prevent that the baby from skidding off from port for stretching legs, avoid being not suitable for the seat adjustment of child safety, eliminate the safety hazard in the pram designs, met or exceeded the requirement of US Department of Commerce Consume Product Safety Commission.

Describe the utility model in detail below in conjunction with accompanying drawing.

Fig. 1 is the structural representation of the utility model safety footrest apparatus;

Fig. 2 is a toe board scheme drawing of the present utility model;

Fig. 3 is an action scheme drawing of the present utility model;

Fig. 4 is the folded state scheme drawing of Fig. 1;

Fig. 5 is a cable scaling system of the present utility model;

Fig. 6 is a gear plate structure scheme drawing of the present utility model;

Fig. 7 is a gear structural scheme of mechanism of the present utility model;

Fig. 8 is the perambulator front elevation that covers infantees.

As shown in Figure 1, toe board 1 is connected with spinal support 4 by cable 2, the vehicle frame 5 of perambulator comprises leading 51 and armrest support 52, be provided with front wheel 501 and back pulley 502 above, cable 2 from the cable attachment point on the toe board 1 101 by front wheel 501 and the back pulley 502 cable attachment point 401 to the spinal support 4.Be provided with a sponge 6 below the toe board 1, be used for when toe board is about in the of 1, rising buffer action.In conjunction with Fig. 3 and Fig. 8, spinal support 4 be because the effect of gear mechanism 3 can be in three positions respectively, the position 41 that promptly lies low, leans to position 42 and perpendicular seat 43, upper 11, interposition 12 and the next 13 that toe board 1 correspondingly is in.Lie low the position 41 the time when spinal support 4 is in, because the draw of cable 2, toe board 1 is automatically to upper 11, is parked in leadingly before 51, covers port for stretching legs 58; When spinal support 4 was in perpendicular seat 43, because the effect of gravity, toe board 1 to the next 13, exposed port for stretching legs 58 (as shown in Figure 8) automatically.Cable 2 is to make with soft and very long-lived material such as nylon.Cable 2, front wheel 501, back pulley 502, vehicle frame 5 etc. cover with infantees, and not only attractive in appearance but also safety is avoided scratching or card is hindered etc.

As shown in Figure 2, cable attachment point 101 on the toe board 1 be about to the distance of toe board center of turn 102 toe board 1 total length 1/3rd, make weight arm greater than tension arm, leave the position 41 that lies low to leaning to 42 or during perpendicular seat 43 when spinal support 4 like this, toe board 1 is subjected to the effect of gravity and arrives interposition 12 automatically or the next 13, and need not the position of hand adjustment toe board 1.

Fig. 4 is a folded state scheme drawing of the present utility model, packs up the not time spent when perambulator, and cable 2 is just in time tensioning also, does not have unnecessary length, thereby makes folding safer.

The length computation of cable 2 sees also Fig. 5.Among Fig. 5, AB represents cable attachment point 101 on the toe board 1 to the distance of front wheel 501, and BC represents the distance of front wheel 501 to back pulley 502, and CD represents the distance of the cable attachment point 401 of back pulley 502 to the spinal support 4, three positions corresponding to spinal support 4 have distance A respectively ₁B, CD ₁, A ₂B, CD ₂, A ₃B, CD ₃The E point is the center of turn 102 of toe board 1, and the G point is the center of turn 402 of spinal support 4; The length of cable 2 is AD, AD=AB+BC+CD.BC and GC are because frame for baby cart 5 structures are definite, so be definite value.CD ₁=A ₃B-A ₁B, the A point position (apart from EG) on toe board 1 is about 1/3rd of toe board 1 total length, and the position of toe board 1 and spinal support 4 is decided by the structure of vehicle frame 5, is given value herein, so A ₁B and A ₃B also is a given value.By CD ₁Length, GC is known, spinal support 4 position 41 that lies low is known with the angle of perpendicular seat 43, can determine that the D point is the position of cable attachment point 401 on spinal support 4.

Referring to Fig. 6 and Fig. 7, be gear plate structure scheme drawing and gear structural scheme of mechanism.Gear mechanism 3 comprises gear plate 31, gear shift lever 32 and pull bar 33.Three gear grooves 311 and two gear teeth 312 are arranged on the gear plate 31, be parallel to each other.When gear shift lever 32 was positioned at gear groove 311, spinal support 4 was in corresponding position.Structure by gear groove 311 shown in the figure and gear tooth 312, spinal support 4 makes when will be reorientated, no matter move to and lean to position 42 or perpendicular seat 43 from the position 41 that lies low, still opposite sense moves, all must at first spur pull bar 33 drive gear shift levers 32 and leave gear groove 311, promote spinal support 4 then to new position, gear shift lever 32 enters gear groove 311 once more, and spinal support 4 just has been in new position.Because the effect of cable 2, spinal support 4 and toe board 1 are interlocks, and promptly three positions are one-to-one relationships, can only be in three positions so the structure of gear mechanism 3 has guaranteed spinal support 4, and accidental moving can not taken place.

Claims

1. safe footrest apparatus, include toe board (1), spinal support (4) and gear mechanism (3), spinal support (4) can be in three positions respectively, position (41) lies low, lean to position (42) and perpendicular seat (43), it is characterized in that toe board (1) is connected with one or more than one cables (2) with spinal support (4), cable (2) is by front wheel (501) and back pulley (502) on the vehicle frame (5), the length (AD) of cable (2) equals toe board (1) and goes up cable attachment point (101) and add that to the distance (AB) of front wheel (501) front wheel (501) adds the distance (CD) that back pulley (502) arrives the cable attachment point (401) of spinal support (4) to the distance (BC) of back pulley (502), wherein front wheel (501) is a definite value to the distance (BC) of back pulley (502), and toe board (1) attachment point (101) when the next (13) arrives the distance (A of front wheel (501) ₃B) with toe board (1) when upper (11) attachment point (101) to the distance (A of front wheel (501) ₁B) difference equals back pulley (502) and is in the distance (CD of the cable attachment point (401) of position when (41) that lie low to spinal support (4) ₁).

2. safe footrest apparatus according to claim 1, it is characterized in that cable (2) can be with nylon or other very the long-lived again material of softness make, cable (1) and pulley (501,502) all are arranged in the infantees.

3. safe footrest apparatus according to claim 1 is characterized in that being provided with shock absorber (6) in the below of toe board (1), and this shock absorber (6) is a sponge.

4. safe footrest apparatus according to claim 1 is characterized in that three gear grooves (311) and two gear teeth (312) of the gear plate (31) of gear mechanism (3) are parallel to each other.

5. safe footrest apparatus according to claim 1 is characterized in that the distance that the last cable attachment point (101) of toe board (1) leaves center of turn (102) is about 1/3rd of toe board (1) total length.