CN201291782Y

CN201291782Y - Headrest controlling mechanism of safety seats for children in vehicle

Info

Publication number: CN201291782Y
Application number: CNU2008201657858U
Authority: CN
Inventors: 徐立宏
Original assignee: JUNSHENG PLASTIC CHILDRENS ARTICLE CO Ltd NINGBO
Current assignee: Max Inf Ningbo Baby Product Co Ltd
Priority date: 2008-10-09
Filing date: 2008-10-09
Publication date: 2009-08-19
Anticipated expiration: 2018-10-09

Abstract

The utility model discloses a headrest adjusting mechanism of a children`s safety seat for an automobile, which comprises a backrest (1), a headrest (2), a spring (3), a spring seat (5) and a guide post (6). A positioning groove (7) and a guide groove are arranged at the backrest (1), a bulge and a guide block (10) are arranged at the reverse side of the headrest (2), the guide post (6) comprises a large head (11) and a small head (12), one end of the spring (3) is leaned on a step face at the connection position between the large head (11) and the small head (12), the other end of the spring (3) is leaned on the step face with one end being concave inwards of the spring seat (5), the other end of the spring seat (5) is leaned on the backrest (1), the small head (12) of the guide post (6) is connected with the headrest (2) by penetrating through a through hole I (4) of the spring seat (5) and the guide groove, the guide block (10) is matched in the guide groove in a sliding manner, and the bulge is matched in the positioning groove (7). The headrest adjusting mechanism of the children`s safety seat for the automobile has the characteristics of convenient adjusting and high reliability without potential safety hazard.

Description

The headrest regulating mechanism of child safety seat for automobiles

Technical field

The utility model relates to a kind of child safety seat for automobiles, specifically is a kind of headrest regulating mechanism of child safety seat for automobiles.

Background technology

Along with living standard improves, automobile progressively becomes the vehicle of a lot of families, owing to often be loaded with children on the automobile, needs to use the safety that guarantees children specially at the child safety seat for automobiles of designed for children.Because children are limited by stature, head is far away from the head rest (part of something or somebody to fall back on the chair back) of the chair back, can't obtain and rely on effect preferably, and children's neck is than adult's fragility, after vehicle sharply turning or children were sleeping, children's neck may be because of the overflexing situation that causes compressing to breathe.So the chair back of the child safety seat for automobiles of prior art is provided with the U type headrest of protection children neck.

Consider that children can be with the needs that the age grows tall or the children of different heights ride, child safety seat for automobiles being provided with on the market can be regulated the headrest regulating mechanism of height of headrest now: be connected slide block and the regulating mechanism that is installed in the pilot bar sliding fit on the chair back with slide block as resting the head on; Maybe will rest the head on is connected with slide block, and the slide block sliding fit respectively is provided with the regulating mechanism of the limiting stopper of a band spring about slide block in the guide groove of the chair back, and the user presses left and right sides limiting stopper simultaneously, and just the energy head restraint and the chair back is spacing, thereby regulates the height of headrest.

There is following defective in the headrest regulating mechanism of the child safety seat for automobiles of above structure: if adopt first kind of mechanism, bear by pilot bar because the weight of headrest is most of, pilot bar is meticulous, and so reliability is low, there is potential safety hazard in fracture easily; If adopt second kind of mechanism, when the user adjusts height of headrest at every turn, all must with the hands go by limiting stopper, pulling is rested the head on up and down then, like this control process trouble effort.

The utility model content

The technical problems to be solved in the utility model is, the headrest regulating mechanism of the child safety seat for automobiles of the highly convenient and good reliability of a kind of adjusting, no potential safety hazard is provided.

Technical solution of the present utility model is, a kind of headrest regulating mechanism with child safety seat for automobiles of following structure is provided, and it comprises spring perch and a guidepost of the chair back, headrest, spring, band through hole I and indent step surface; The front of the described chair back is provided with a plurality of positioning grooves, is penetrated with a vertical guide groove on the described chair back, and the back side of described headrest is provided with at least one projection and at least one vertical orienting lug that matches with guide groove of cooperating with positioning groove; Described guidepost comprises major part and microcephaly, and major part and microcephaly's line of centers is located along the same line; One end of described spring is against on the step surface of major part and microcephaly junction, the other end is against on the step surface of spring perch one end indent, the other end of spring perch is against on the chair back, the through hole I that the microcephaly of described guidepost passes spring perch is connected with headrest with guide groove again, described orienting lug sliding fit is in guide groove, and the projection at the headrest back side is engaged in the fwd positioning groove of the chair back.

After adopting above structure, the headrest regulating mechanism of the utility model child safety seat for automobiles compared with prior art has the following advantages:

Headrest is by projection and positioning groove cooperatively interact location so firm position; And owing to the weight major part of headrest is born by the headrest mount pad and the chair back, so the reliability height has been eliminated potential safety hazard; When the height of customer requirement adjustment headrest, headrest is applied an application force perpendicular to the chair back, compression spring when feasible headrest drive guidepost moves, at this moment, the projection of headrest is left positioning groove, but orienting lug still matches with guide groove, the user moves up or down headrest along guide groove, feasible headrest reaches desirable position looses one's grip again, and guidepost drives headrest under the effect of spring, makes the projection at the headrest back side cooperate with the positioning groove of new location.Like this, the user is singlehanded just to adjust height of headrest, need not re-use both hands and regulate, so simple to operation.

Description of drawings

Fig. 1 is the front structure scheme drawing of the chair back of the headrest regulating mechanism of the utility model child safety seat for automobiles.

Fig. 2 is the structure scheme drawing of headrest of the headrest regulating mechanism of the utility model child safety seat for automobiles.

Fig. 3 is the semi-sictional view blast structural representation of the headrest regulating mechanism of the utility model child safety seat for automobiles.

Fig. 4 is the partial side sectional structure scheme drawing of the headrest regulating mechanism of the utility model child safety seat for automobiles.

Shown in the figure 1, the chair back, 2, headrest, 3, spring, 4, through hole I, 5, spring perch, 6, guidepost, 7, positioning groove, 8, guide groove, 9, projection, 10, orienting lug, 11, major part, 12, the microcephaly, 13, hollow space, 14, the headrest mount pad, 15, fastening nut, 16, screw, 17, through hole II, 18, through hole III.

The specific embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the headrest regulating mechanism of the utility model child safety seat for automobiles, it comprises the screw 16 of the spring perch 5 of the

chair back

1,2, springs of headrest 3, band through hole I4 and indent step surface, a guidepost 6 and a band fastening nut 15.The described chair back 1 is provided with hollow space 13, and described hollow space 13 is equipped with headrest mount pad 14, and described headrest mount pad 14 something or somebody to fall back on rest the head on 2 one side and are provided with a plurality of positioning grooves 7; Be penetrated with a vertical guide groove 8 on the described headrest mount pad 14.The back side of described headrest 2 is provided with three projection 9 and two vertical orienting lugs 10 that match with guide groove 8 of cooperating with positioning groove 7, described guidepost 6 comprises major part 11 and microcephaly 12, major part 11 and microcephaly's 12 line of centers is located along the same line, one end of described spring 3 is against on the step surface of major part 11 and microcephaly 12 junctions, the other end is against on the step surface of spring perch 5 one end indents, the other end of spring perch 5 is against on the chair back 1, and the through hole I4 that the microcephaly 12 of described guidepost 6 passes spring perch 5 is connected with headrest 2 with guide groove 8 again.The microcephaly 12 of described guidepost 6 is connected and is meant with headrest 2, described guidepost 6 is penetrated with through hole II17 along its length, the center of described headrest 2 back is provided with through hole III18, and described screw 16 via through holes II17, through hole III18 and fastening nut 15 screw.Described orienting lug 10 sliding fits are in guide groove 8, and the projection 9 at 2 back sides of resting the head on is engaged in the positioning groove 7 that headrest mount pad 14 something or somebody to fall back on rest the head on 2 one side.

Below only be described, but can not be interpreted as it is restriction claim with regard to the utility model preferred embodiment.The utility model not only is confined to above embodiment, and its concrete structure allows variation, as: the described chair back 1 also can not established hollow space 13 and headrest mount pad 14, but described positioning groove 7 and guide groove 8 are set directly on the chair back 1; Deng.All various variations of being done in the protection domain of the utility model independent claims are all in protection domain of the present utility model.

Claims

1, a kind of headrest regulating mechanism of child safety seat for automobiles, it comprises the chair back (1) and headrest (2), it is characterized in that: it also comprises a spring (3), a spring perch (5) and a guidepost (6) of being with through hole I (4) and indent step surface; The front of the described chair back (1) is provided with a plurality of positioning grooves (7), be penetrated with a vertical guide groove (8) on the described chair back (1), the back side of described headrest (2) is provided with at least one and the projection (9) of positioning groove (7) cooperation and the orienting lug (10) that matches with guide groove (8) that at least one is vertical; Described guidepost (6) comprises major part (11) and microcephaly (12), and major part (11) and microcephaly's (12) line of centers is located along the same line; One end of described spring (3) is against on the step surface of major part (11) and microcephaly (12) junction, the other end is against on the step surface of spring perch (5) one end indents, the other end of spring perch (5) is against on the chair back (1), the through hole I (4) that the microcephaly (12) of described guidepost (6) passes spring perch (5) is connected with headrest (2) with guide groove (8) again, described orienting lug (10) sliding fit is in guide groove (8), and the projection (9) at headrest (2) back side is engaged in the fwd positioning groove (7) of the chair back (1).

2, the headrest regulating mechanism of child safety seat for automobiles according to claim 1, it is characterized in that: the described chair back (1) is provided with hollow space (13), described hollow space (13) is equipped with headrest mount pad (14), the front of the described chair back (1) is provided with a plurality of positioning grooves (7), is meant that the one side of described headrest mount pad (14) something or somebody to fall back on pillow (2) is provided with a plurality of positioning grooves (7); Be penetrated with a vertical guide groove (8) on the described chair back (1), be meant to be penetrated with a vertical guide groove (8) on the described headrest mount pad (14).

3, the headrest regulating mechanism of child safety seat for automobiles according to claim 1, it is characterized in that: it also comprises the screw (16) of a band fastening nut (15), the microcephaly (12) of described guidepost (6) is connected and is meant with headrest (2), described guidepost (6) is penetrated with through hole II (17) along its length, the center of described headrest (2) back is provided with through hole III (18), and described screw (16) via through holes II (17), through hole III (18) screw with fastening nut (15).