CN102632816B - Seat-adjustable ISOFIX (International Standards Organisation FIX) system of vehicle-mounted children safety-restraint system - Google Patents

Abstract

The invention relates to a seat-adjustable ISOFIX system of a car safety restraint system for children on a vehicle, comprising a base frame, a FIX joint, an adjustment dial and an adjustment mechanism. The mechanism includes a front support plate, a rear slide plate, a gear adjustment sliding tooth, a pneumatic spring, a bayonet column and a gear lock plate. One end of the gear sliding tooth is supported in the gear locking plate in a sliding state along the front and rear directions of the base frame, the other end of the shift sliding tooth is connected to the FIX joint through the rear sliding plate, and the front support plate and the rear sliding plate are connected by a pneumatic spring. The lower end of the shifting plate is connected to the front support plate through a spring, and the adjusting shifting plate is provided with a bayonet column corresponding to the upper tooth mouth of the shifting sliding tooth. The seat is adjustable and fixed, and its overall structure is simple and compact, with few transmission parts, stable locking, and time-saving and labor-saving operation.

Description

Seat-adjustable ISOFIX system of vehicle safety restraint system for children

technical field

The invention relates to a vehicle safety restraint system for children, in particular to an ISOFIX system for adjusting seats of the vehicle safety restraint system for children.

Background technique

The full name of ISOFIX is "International Standards Organization FIX", which means in Chinese: International Organization for Standardization Fixtures. It is a new standard for placing child seats in cars. This standard is being adopted by many car manufacturers and its role is to make the installation of child seats quick and easy. Traditional child seats are placed on the car seat and secured using a cross-body strap (and sometimes just a lap belt), however different models of cars have different seats, belts and methods of securing them. Different shapes of car seats, shorter belt lengths and different anchor point locations can cause some child seats to sit further forward or further back, factors that make it difficult to manufacture a child seat that fits all car models. Developing ISO FIX is to solve all these problems. Its ultimate goal is to make any ISO FIX child seat you buy fit your car, you just need to simply plug it into the child seat interface.

For example, the patent No. 200780049276.7 discloses a device for operating the anchoring system of a baby seat in a car, the anchoring system includes a pair of hooks integral with a bar along which the baby seat can move, and the operating device includes a pair of a locking element which locks the movement of the infant seat relative to the bar, said locking element being movable between a locked position and a released position under the action of elastic means, said locking element being The pawl meshes with the teeth on the rod. The device can be quickly connected to the ISOFIX interface of the car through the hook to realize the quick connection and installation of the baby seat and the car. The elastic device controls the ratchet locking of the locking element and releases the teeth on the bar to realize the front and rear position adjustment and fixation of the baby seat. , the baby seat is easy to install and adjust, but its disadvantage is that the adjustment and fixation of the baby seat on the bar is realized by the elastic element controlling the pawl release of the locking element and the teeth on the locking bar. In the long-term stretched or compressed state, the elastic element is very easy to fail and the baby seat cannot be adjusted. In addition, the pawl and teeth are easy to wear after long-term use, resulting in clamping failure and short service life. It is easy to loosen suddenly during use and cause safety accidents, and the safety performance is low.

Therefore, the ISOFIX system of the car child safety seat with the patent number 201120052830.0, which the applicant applied for earlier, uses the co-adjustment and position-limiting action of the bayonet column in the chute, the oblique groove and the sliding tooth to realize the activity adjustment and positioning of the baby seat. Positioning and locking, effectively realizing fast installation and seat adjustment, the adjustment principle is: the shifting block drives the toothed column to move up and down in the chute through the oblique groove, so that the toothed column moves upwards away from the sliding tooth or the locking tooth The column is stuck downwards into the state of sliding teeth, and its transmission is completely dependent on the oblique cut groove of the gear shift block and the gear lock cover to cooperate with the extrusion of the card tooth column to break away from the sliding teeth, the oblique cut groove, the gear lock cover and the lock. The tooth columns are in a hard extrusion state for a long time, and there are still shortcomings such as short service life, large required force, and difficult operation.

Contents of the invention

In order to solve the deficiencies such as easy wear and damage, short service life and difficult operation of the adjustment and fixing device of the ISOFIX system of the car child safety seat in the prior art, the present invention provides a compact structure, easy operation, stable adjustment structure, easy to use The invention relates to an adjustable ISOFIX system with long service life and low manufacturing and use costs for vehicle safety restraint system for children.

The technical solution adopted in the present invention is: a seat-adjustable ISOFIX system of a car safety restraint system for children on a vehicle, including a base frame, a FIX joint, an adjustment dial and an adjustment mechanism, and the adjustment dial is connected and slidably supported on the bottom of the base frame by the adjustment mechanism The technical feature of the FIX joint is that the adjustment mechanism includes a front support plate, a rear slide plate, a shift sliding tooth, a pneumatic spring, a bayonet column and a gear lock plate, and the front support plate is fixedly connected to the front end of the base frame, and the gear position The locking plate is set on the front support plate, one end of the gear shifting tooth is supported in the gear locking plate and slides along the front and rear direction of the base frame, the other end of the shifting tooth is connected to the FIX joint through the rear sliding plate, the front support plate and the rear The slide plates are connected by pneumatic springs, and the lower end of the adjustment dial is connected to the front support plate by a spring, and the adjustment dial is provided with a bayonet post corresponding to the upper tooth opening of the shift gear.

Further, the gear lock plate is provided with a limit waist hole, and the bayonet column penetrates through the limit waist hole to correspond to the upper sliding tooth of the gear shifting sliding tooth.

When the present invention is in use, the adjustment dial is toggled, and the adjustment dial drives the locking column to rise, and the locking column rises to engage with the upper tooth opening of the shifting sliding tooth, and the pneumatic spring acts backward on the rear sliding plate, and passes through the rear sliding plate. Push the FIX connector to stretch out backwards to connect with the FIX interface of the car; after the FIX connector is connected, loosen the adjusting dial, and the adjusting dial will reset under the action of the spring, and the locking column and the upper gear mouth of the shifting gear will be engaged. Together, the system is fixed without looseness.

Adopting the above technical scheme, the beneficial effect of the present invention is: use the bayonet column to break away from the tooth opening of the shifting sliding tooth upwards, and the pneumatic spring drives the FIX joint to protrude to realize the installation and adjustment of the ISOFIX system; the bayonet post snaps downward into the shifting gear The tooth opening of the sliding tooth and the locking column lock the shifting sliding tooth under the common limit of the limit groove of the gear lock plate and the tooth opening of the shifting sliding tooth to realize the positioning and locking of the ISOFIX system. The locking column is used Small wear, not easy to fail, long service life, stable clamping, no safety hazard.

The invention adopts the adjusting dial to control the clamping and disengagement of the bayonet column and the gear shifting sliding tooth, and cooperates with the pneumatic spring to make the FIX joint clamp or disengage the automobile FIX interface under the condition that the bayonet column and the gear mouth are disengaged, so as to realize the seat The chair is adjustable and fixed, and its overall structure is simple and compact, with few transmission parts, stable locking, and time-saving and labor-saving operation.

Description of drawings

Figure 1 is a schematic diagram of the three-dimensional structure of the present invention.

In the figure: base frame 1, front support plate 2, rear slide plate 3, FIX joint 4, adjustment dial 5, gear lock plate 6, spring 7, bayonet post 8, shift gear sliding tooth 9, pneumatic spring 10, Limiting groove 11.

Detailed ways

The present invention will be further described below in conjunction with drawings and embodiments.

As shown in Fig. 1, a seat-adjustable ISOFIX system base frame of a car safety restraint system for children on a vehicle 1, a front support plate 2, a rear slide plate 3, a FIX joint 4, an adjustment dial 5, a gear locking plate 6, and a spring 7 , bayonet post 8, gear shift sliding tooth 9 and pneumatic spring 10. The lower front end of the base frame 1 of the vehicle-mounted child car safety restraint system seat is fixedly connected to the front support plate 2, the bottom of the base frame 1 is connected to the FIX joint 4 that slides forward and backward along the base frame 1, and the front support plate 2 is connected to the adjustment dial via a spring 7 5. There is a tooth column 8 on the adjusting dial 5, a gear lock plate 6 is set on the front support plate 2, a limit groove 11 is set on the gear lock plate 6, and a gear lock plate 6 is equipped with Gear adjustment sliding tooth 9, one end of the gear adjustment sliding tooth 9 can slide in the gear lock plate along the front and rear direction of the base frame, the other end of the gear adjustment sliding tooth 9 is connected to the rear slide plate 3, and the rear slide plate 3 is connected to the FIX joint 4, the locking tooth column 8 is connected in the limit groove 11 and is correspondingly snapped into or disengaged from the tooth opening of the shifting sliding tooth 9, and the front support plate 2 and the rear sliding plate 3 are connected through the pneumatic spring 10.

Claims (2)

1. A seat-adjustable ISOFIX system of a vehicle safety restraint system for children, comprising a base frame, a FIX joint, an adjustment dial and an adjustment mechanism, the adjustment dial is connected to the FIX joint slidably supported at the bottom of the base frame by the adjustment mechanism, and its characteristics That is: the adjustment mechanism includes a front support plate, a rear slide plate, a shift gear, a pneumatic spring, a bayonet column and a gear lock plate, the front support plate is fixedly connected to the front end of the base frame, and the gear lock plate is arranged on the front On the support plate, one end of the gear shifting tooth is supported in the gear lock plate and slides along the front and rear directions of the base frame. The other end of the shifting tooth is connected to the FIX joint through the rear sliding plate, and the front support plate and the rear sliding plate are connected by a pneumatic spring. connected, the lower end of the adjustment dial is connected to the front support plate via a spring, and the adjustment dial is provided with a bayonet column corresponding to the upper tooth mouth of the shift sliding tooth. 2. The seat-adjustable ISOFIX system of a vehicle-mounted child car safety restraint system according to claim 1, characterized in that: the gear locking plate is provided with a limiting waist hole, and the bayonet column is connected to the limiting position. The waist hole corresponds to the upper sliding tooth of the gear shifting sliding tooth.

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