RU2190527C1 - Method of connection of automobile auxiliaries - Google Patents

Abstract

FIELD: automotive industry; passive safety. SUBSTANCE: invention is aimed at provision of safety of driver and passengers in service owing to absence of fasteners at adhesive attachment of automobile auxiliary articles of plane of sun visors. Said method is based on holding mass of auxiliary article using adhesive properties of foamed polyurethane mixture. Sun visor skeleton is placed in split mould into which foamed polyurethane mixture is fed. Sun visor mould is kept in contact with plane of auxiliary article till complete hardening of mixture at maximum adhesive connection of surfaces. Then edges of article are subjected to full loading within the limits of its sinking flush with mould. After extraction of sun visor spatial frame with self-lockable axial members provided with conical lock in base is installed relative to embedded skeleton. End face surfaces of axial members hold spatial frame relative to auxiliary article secured in spatial frame and limited by clearance of working field frame. Foamed polyurethane in process of hardening features high adhesive properties making it possible to dispense with fasteners from sun visor attachment units used in transport. Practical approbation of result of destruction of mirror at high speeds has proved high adhesive properties of mirror fitting to mixture of foamed polyurethane. Contact speeds at which tests have been carried out are 248,2 km/h, 123,2 km/h, 132 km/h, 131 km/h, 130,9 km/h, 129 km/h at equal deceleration of impact for each speed being 3 μs. Results obtained has proved high efficiency of new method facilitating production and fastening of auxiliaries at improved design and ergonomic characteristics of articles. EFFECT: improved passive safety of driver and passengers at driving speeds dangerous to life. 4 dwg

Description

 The invention relates to the field of design and installation of objects in the automotive industry and can be used to increase the passive safety of people during the operation of vehicles.

 Known prototype - patent GB 2317865 A, class. In 60 R 7/05, published. 04/08/1998, p. fifteen.

 The disadvantages of the known technical solutions include the reduced technological capabilities of the prefabricated frame structure, which are not designed for the safe installation of service items, including a mirror, computer or computer equipment, a flat radar or a television, subject to the relevant measures and conditions of passive and fire safety with an adhesive two-coordinate fixing items of automobile service.

 In addition, the lack of the possibility of constructive variation of various types of service items does not allow to quickly readjust their production for any series of types of sun visors, which makes the manufacturing process lengthy and somewhat unprofitable for market demand.

 The objective of the invention is to increase the passive safety of people during the operation of vehicles.

 The problem is achieved in that the method of connecting automotive service items with a sun visor, performed by maintaining the mass of an automotive service item, in which the automotive service item is installed by using the adhesive properties of the polyurethane foam with parallel interaction of its surface with the sun visor frame, obtain a full volumetric loading on the edges of an automobile service subject within the limits of its drowning in polyurethane foam, characterized the fact that the sunflower visor frame is placed in a detachable form used to fill the polyurethane foam, the polyurethane foam mixture is poured into a detachable form, maintain the shape of the sun visor in contact with the plane of the automobile service item until the mixture completely hardens with maximum adhesive adhesion of the surfaces to be connected with the area and partially high-altitude periphery subject of automobile service, full volume loading on the edges of the subject of automobile service within its drowning, and foam polyurethane with a height parameter of at least 1 mm removes the frozen form of the sun visor with the subject of automobile service, and a spatial frame is installed relative to the embedded frame with self-locking axial elements having a tapered element at the base, the end surfaces of which create retention of the spatial frame relatively limited clearance of the scope of the working field, fixed to it the subject of automobile service, after which otivosolnechny visor, together with the object mounted thereon is suitable for final operations, providing marketable and technological assembly with elements of the coordination space.

 Graphic images: figure 1 - table 1 is a diagram of the test sun visor on the ability to absorb shock at a speed at the time of contact 24.8 km / h; figure 2 is a test chart of the sun visor on the ability to absorb shock at a speed at the moment of contact 12.32 km / h; figure 3 is a test chart of the sun visor for the ability to absorb shock at a speed at the time of contact of 13.2 km / h; figure 4 is a test chart of the sun visor on the ability to absorb shock at a speed at the time of contact 13.11 km / h

 Description of the possibilities of the method of the sun visor, taking into account the distinctive features of the prototype / 1 /.

A method of connecting automobile service items with an anti-sun visor, performed by retaining the mass of an automobile service subject, in which an automobile service object is established by using the adhesive properties of a polyurethane foam with parallel interaction of its surface with a sun visor frame, a full volume loading on the edges of the automobile service object is obtained within its drowning in polyurethane foam, characterized in that:
- the frame of the sun visor is placed in a detachable form used to fill the polyurethane foam;
- a mixture of polyurethane foam is served in a split mold;
- maintain the shape of the sun-visor in contact with the plane of the automobile service item until the mixture completely hardens with maximum adhesive adhesion of the surfaces to be connected with the area and partially high-altitude periphery of the automobile service item, full volume loading on the edges of the object of the automobile service within the limits of its drowning;
- polyurethane foam in terms of height parameter is at least 1 mm;
- produce the extraction of the frozen form of the sun visor with the subject of automobile service;
- relative to the embedded frame, a spatial frame is installed with self-locking axial elements having a tapered conical element at the base, the end surfaces of which create a spatial frame retention with respect to the lumen of the working field frame fixed to it by an automobile service item;
- the sun visor, together with the object fixed on it, is suitable for final operations providing a presentation and technological assembly with elements of coordination in space.

 An example of the implementation of the method of installation of automotive service items.

A method of connecting automobile service items with an anti-sun visor, performed by retaining the mass of an automobile service subject, in which an automobile service object is established by using the adhesive properties of a polyurethane foam with parallel interaction of its surface with a sun visor frame, a full volume loading on the edges of the automobile service object is obtained within the limits of its drowning in polyurethane foam, it is carried out in such a way that:
1. the frame of the sun visor is placed in a detachable form used to fill polyurethane foam;
2. a mixture of polyurethane foam is served in a split mold;
3. maintain the shape of the sun-visor in contact with the plane of the subject of the automobile service until the mixture completely hardens with maximum adhesive adhesion of the surfaces to be connected with the area and partially high-altitude periphery of the automobile service subject, full volume loading on the edges of the subject of the automobile service within its drowning;
4. polyurethane foam is at least 1 mm in height;
5. extract the frozen form of the sun visor with the subject of automobile service;
6. relative to the embedded frame, a spatial frame is installed with self-locking axial elements having a tapered conical element at the base, the end surfaces of which create a spatial frame retention with respect to the lumen of the working field frame fixed to it by an automobile service item;
7. The sun visor, together with the object fixed on it, is suitable for final operations providing a presentation and technological assembly with elements of coordination in space.

As a result of tests, it was found that:
- adhesion contributes to the absorption of impact energy caused by regulatory tests at an impact speed of 24.6 km / h with a maximum deceleration of 78.48 g, which causes the appearance of fragments of a size not exceeding 5 mm, which remain in the body of the matrix of the gasket of the sun visor;
- adhesion causes a level of deceleration of the layout of the head of the robotic arm when striking the mirror for 0.003 s, which is in the range of 63-73.98 g with a maximum deceleration in the range of 128-172.7 g, which contributes to the reference point for the appearance of cracks on the surface of the mirror at the level of deceleration of the head layout when striking a radius of 21 for 0.003 s, it is 75.3 g -78.48 g, which is comparable to the time of shock absorption;
- the service item is fixed with a spatial structure frame, which is fixed in the packing due to self-locking pins.

 The industrial usefulness of the new technical solution lies in its versatility in deciding the choice of a specific technologically applicable sun visor design from the point of view of passive safety and ease of use in accordance with ISO 9000 and 9001, to which AvtoVAZ switched to from the beginning of 2000.

 The proposed method has passed appropriate tests.

 The economic usefulness of the new technical solution lies in the possibility of the appearance on the market of competitive products for organizations involved in the manufacture of sun visors, not only for automobiles, but also for underwater and surface vehicles.

Claims (1)

 A method of connecting automobile service items with an anti-sun visor made by retaining the mass of an automobile service object, in which an automobile service object is established by using the adhesive properties of a polyurethane foam with parallel interaction of its surface with a sun-visor frame, full volume loading on the edges of the automobile service object is obtained within the limits of its drowning in polyurethane foam, characterized in that the anti-sun trump frame ka is placed in a detachable form used to fill polyurethane foam, the polyurethane foam mixture is fed into a detachable form, kept in the shape of an anti-sun visor in contact with the plane of the automobile service item until the mixture completely hardens with maximum adhesive adhesion of the surfaces to be connected with the area and partially high-rise periphery of the automobile service item, full volumetric loading on the edges of the subject of automobile service within the limits of its drowning, and polyurethane foam in terms of height parameter, At least 1 mm is used to remove the hardened form of the anti-sun visor with the subject of automobile service, and a spatial frame with self-locking axial elements having a tapered conical element at the base, the end surfaces of which create retention of the spatial frame with respect to the clearance of the working field frame, is installed relative to the embedded frame fixed to it the subject of automobile service, after which the sun visor with fixed The subject used on it is suitable for final operations providing a presentation and technological assembly with elements of coordination in space.

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