METHOD AND DEVICE FOR A CHILD'S CAR SAFETY-SEAT

Abstract: The invention relates to a device for a child's car safety seat (1) fastenable facing backwards on a car seat (2). This comprises a frame (1b) intended to carry an upholstered seat shell (1a) and when mounted on the seat (2b) of the seat (2) to support itself by a pair of feet (1b2) at the front edge (2b1) of the seat (2b) and to rest with a projecting arm (1b1) against the back rest (2a) of the seat (2). The seat shell (1a) is arranged displaceably on the arm (1b1) and is fixable by means of a locking mechanism (3) in one of several optional positions along the arm (1b1). To fasten the child's car safety seat (1) to the car seat (2) there are two closed loops connected to the seat shell (1a) for threading the seat belt belonging to the car seat (2) through. Following threading, this is disposed to be fastened in the conventional manner. The locking mechanism (3) is disposed on fixing in a chosen position to move the seat shell (1a) along the arm (1b1) in a direction tightening the seat belt (4).

Description: Method and device for a child's car safety seat The present invention relates to a device for a child's car safety seat which is fastenable facing backwards on a car seat, comprising a frame intended to carry an upholstered seat shell and when fitted on the seat of the car seat to support itself by a pair of feet at the front edge of the seat and to rest with a projecting arm against the back rest of the seat. The invention also relates to a method of fastening a child's car safety seat. In known car safety seats of the type named above, special straps are used for fastening the car safety seat and in combination with these or alone the seat belt belonging to the car seat. A common feature of these known car safety seats is that the straps or seat belt can be arranged incorrectly due to error or carelessness so that the fastening no longer meets the requirements set by the competent authority, and in an accident does not offer a child sitting in the car safety seat the intended protection. The object of the present invention is to achieve improved fastening of a rear- facing car safety seat. This is achieved in that the car safety seat has the features indicated in the characterizing part of claim 1. The invention is to be explained in greater detail below with reference to the enclosed drawing, in which Fig. 1 shows in diagrammatic form a car safety seat according to the invention mounted on the front passenger seat of a car. Fig. 2 shows clearly how the car safety seat is fastened by means only of the ordinary seat belt of the passenger seat. Figures 3a - 3d show different stages in the final fastening of the car safety seat to the car seat by tightening of the car seat belt. In Fig. 1, 1 generally describes a child's car safety seat which is fastenable facing backwards on a car seat 2. The car safety seat comprises an upholstered seat shell la which rests on a frame lb, which has a projecting arm lbl, intended when the car safety seat 1 is fitted on the car seat 2 to rest against the back rest 2a of the car seat and a pair of feet 1 b2 with the purpose of supporting themselves against the seat 2b of the car seat 2, preferably at its front edge 2b 1. According to the invention, the seat shell la is disposed displaceably on the ami lbl and is fϊxable by means of a locking mechanism 3 in one of several optional positions. In relation to Figures 3a - 3d it will be explained later how this locking mechanism 3 can be executed and can function. To fasten the car safety seat 1 on the car seat 2, the seat belt 4 belonging to the car seat and comprising a male connecting part 4a and a female connecting part 4b fixed to the car chassis is used on the one hand; and on the other hand two closed loops lal fixedly attached to the seat shell la. In this connection, the seat belt 4 with the male connecting part 4a is threaded through the loops lal, following which the male connecting part is fastened in the female connecting part 4b. The locking mechanism 3 is disposed according to the invention on fixing in a chosen position to move the seal shell la along the arm lb in a direction which means that the seat belt 4 is tightened. Figures 3a - 3d illustrate how such fixing / tightening can be achieved. Extending along at least a part of the aπn lbl is a rail 5 fixed on the arm, which rail has preferably equispaced and rectangular openings 5a. The locking mechanism 3 is a so-called eccentric lock manoeuvrable by a handle 3b, with a catch 3a which is insertable into a selected opening 5a. On movement of the handle 3b towards the fixing position of the eccentric lock, movement of the seat shell la in the direction tightening the seat belt 4 is achieved due to the engagement of the catch 3a in the opening 5a. On modern seat belts of the three-point type, there is a locking device in the belt mechanism which is intended to be used when fastening a child's car safety seat. The purpose of this locking device is to remove the flexibility which means that it is normally possible to move somewhat in the car seat without the seat belt being tightened. If a locking device of this kind is absent, this function must be replaced by a locking element 6 which can be affixed to the parts of the seat belt 4. In Fig. 2, this locking element consists of a locking clip which is generally S-shaped. In this connection, the parts of the belt are inserted into slots 6a open in two opposite directions, preferably so that the slots 6a then lie on both sides of the loop lal. It is evident that the invention can be modified in many ways in the scope of the inventive idea. This applies especially to the design of the locking mechanism 3 and the locking element 6. It is also understood that the child's car safety seat according to the invention can be used together with a seat belt of the two-point type which is now less common.

Claims: Claims 1. Device for a child's car safety seat (1) fastenable facing backwards on a car seat (2), comprising a frame (lb) intended to carry an upholstered seat shell (la) and when mounted on the seat (2b) of the car seat (2) to support itself by a pair of feet (lb2) at the front edge (2b 1) of the seat (2b) and to rest with a projecting arm (lbl) against the back rest (2a) of the seat (2), characterized in that the seat shell (la) is arranged displaceably on the arm (lbl) and is fixable by means of a locking mechanism (3) in one of several optional positions along the arm (lbl), that to fasten the car safety seat (1) to the car seat (2) there are two closed loops connected to the seat shell (la) for threading the seat belt belonging to the car seat (2) through, which belt, following threading, is disposed to be fastened in a conventional way and that the locking mechanism (3) is disposed on fixing in a chosen position to move the seat shell (la) along the arm (lbl) in a direction tightening the seat belt (4). 2. Device according to claim 1 , in the case of a seat belt of the three-point type, characterized in that the device comprises a locking element (6) attachable to the parts of the seat belt and disposed to disable the reeling function of the seat belt (4). 3. Device according to claim 1 or 2, characterized in that extending along at least a part of the arm (lbl) is a rail (5) fixed on the arm, which rail has preferably rectangular openings (5a), that the locking mechanism has a catch (3a) insertable into the openings (5a) for engagement with the rail (5), which catch is operatively connected to an eccentric lock manoeuvrable by means of a handle (3b), which eccentric lock is disposed on movement of the handle (3b) towards the fixing position to achieve movement of the seat shell (la) in the direction tightening the seat belt (4). 4. Device according to claim 2, characterized in that the locking element (6) comprises a generally S-shaped locking clip with two slots (6a) open in opposite directions, into which the belt parts (4) are insertable. Method of fastening a child's car safety seat (1) to a car seat, a first frame part (lbl) of the car safety seat being carried by the seat (2b) of the car seat (2) and a second frame part (lbl) being caused to rest against the back rest (2a) of the car seat (2), characterized in that for fastening the seat belt (4) belonging to the car seat (2) is led through at least one closed loop (lal) operatively connected to the seat shell (la) of the car safety seat (1), following which the seat belt (4) is locked in a conventional manner, and that to post-tension the seat belt (4) holding the car safety seat (1) fast, the seat shell (la), which is displaceable along the first frame part (lbl), is moved a way along the first frame part (lbl) in a direction tightening the seat belt (4) to be fixed thereafter on said first frame part (lbl). AMENDED CLAIMS [received by the International Bureau on 29 August 2000 (29.08.00) original claims 1-4 replaced by new claims 1-4 (2 pages)] 1. Device for a child's car safety scat (1) fastenable facing backwards on a car seat (2), comprising a frame (lb) intended to carry an upholstered seat shell (la) and when mounted on the seat (2b) of the car seat (2) to support itself by a pair of feet (lb2) at the front edge (2bl) of the seat (2b) and to rest with a projecting arm (lbl) against the back rest (2a) of the scat (2), characterized in that the seat shell (1 a) is arranged displaceably on the arm (lbl) and is fixable by means of a locking mechanism (3) in one of several optional positions along the arm (lbl), that to fasten the car safety scat (1) to the car seat (2) there are two closed loops connected to the seat shell (la) for threading the seat belt belonging to the car seat (2) through, which belt, following threading, is disposed to be fastened in a conventional way, that the locking mechanism (3) is disposed on fixing in a chosen position to move the scat shell (la) along the arm (lbl ) in a direction tightening the seat belt (4) and that the device comprises a locking element (6) attachable to the parts of the seat belt and disposed to prevent movement of the seat belt (4). 2. Device according to claim 1 or 2, characterized in that extending along at least a part of the arm (1 bl) is a rail (5) fixed on the arm. which rail has preferably rectangular openings (5a), that the locking mechanism has a catch (3a) insertable into the openings (5a) for engagement with the rail (5), which catch is operatively connected to an eccentric lock manoeuvrable by means of a handle (3b), which eccentric lock is disposed on movement of the handle (3b) towards the fixing position to achieve movement of the seat shell (la) in the direction tightening the seat belt (4). 3. Device according to claim 2, characterized in that the locking element (6) comprises a generally S-shaped locking clip with two slots (6a) open in opposite directions, into which the belt parts (4) are insertable. 4. Device according to any of the preceeding claims, characterized in that the device comprises an elongated adjustable member operatively connected to the seat shell and arranged to support the shell (la) against the floor of the car. Method of fastening a child's car safety scat (1) to a car seat, a first frame part (lbl ) of the car safety seat being carried by the seat (2b) of the cai- seat (2) and a second frame part (lbl) being caused to rest against the back rest (2a) of the car seat (2), characterized in that for fastening the seat belt (4) belonging to the car seat (2) is led through at least one closed loop (l l) operatively connected to the seat shell (la) of the car safety seat (1), following which the seat belt (4) is locked in a conventional manner, and that to post-tension the seat belt (4) holding the car safety seat (1) fast, the seat shell (la), which is displaceable along the first frame part (lbl), is moved a way along the first frame part ( 1 b 1 ) in a direction tightening the seat belt (4) to be fixed thereafter on said first frame part (lbl) and in that further movement of the belt is prevented by attaching a locking element to the parts of the seal belt.

Inventors: SKOELD BJOERN-AAKE, SKOELD, BJOERN-AAKE
Applicants: BJOERN AAKE SKOELD DESIGN AB, SKOELD BJOERN AAKE, BJOERN-AAKE SKOELD DESIGN AB, SKOELD, BJOERN-AAKE
Application year: 2000
Main classification: B60N2
IPC codes: B60N2