RU67518U1 - VEHICLE DEVICE CONTROL BUTTON - Google Patents

Abstract

The invention relates to the field of measurement technology and can be used in automotive instrumentation, in particular, to control the functions of a speedometer or a combination of vehicle devices. The objectives of the proposed technical solutions are: simplification of the design, reducing the complexity; increased dust protection; noise reduction. The tasks are solved in that the control button is made as a single part. The part of the button that extends through the hole in the glass to the outside has a smaller diameter than the part of the button located under the glass. The protrusion of the button, formed by the difference in diameters, has a spherical shape. The hole in the glass for the button has a protrusion in which the contact surface of the button with the glass is spherical and has the same radius as the spherical surface of the protrusion of the button.

This design:

- reduces the complexity of the assembly of devices, because the control button is made as a single part;

- increases the dust protection of devices, tk. a tension-compression spring presses the spherical protrusion on the control button to the spherical surface of the hole in the glass and thereby eliminates the gap between the button and the glass;

- reduces noise since the absence of a gap between the control button and the glass eliminates the vibration of the button in the hole when the vehicle is moving.

Description

The utility model relates to the field of measurement technology, and can be used in automotive instrumentation, in particular, to control the functions of a speedometer or a combination of vehicle devices.

Vehicle devices are known in which for resetting the daily odometer there is a reset button that goes out through an opening in the glass. Through the gap formed between the side surfaces of the button and the hole in the glass, dust penetrates the scale. In addition, when the vehicle is moving, rattling of a button in the glass opening causes noise.

Known odometer reset button for a vehicle instrument cluster according to US patent No. 5038877 (IPC: G01D 11/00, patent holder: "SAGEM" (FR), where the design of the odometer reset button of a vehicle instrument cluster consists of two parts: an axis made of plastic material, and a cap extending out through an opening in the glass and made of elastic material. Six conical ribs are located on the periphery of the cap. A tension-compression spring presses the button so that the ribs of the elastic cap The cup rests against the edge of the hole in the glass, which eliminates the rattling of the button in the hole and, accordingly, eliminates noise.

The disadvantages of this solution are:

- the complexity of the design of the push button (consists of two parts - the axis and the cap);

- insufficient dust protection of the instrument cluster (dust can penetrate through the gaps between the conical ribs on the periphery of the elastic cap and the glass hole, in particular on the scale).

The tasks solved by the proposed utility model are:

- simplification of the design;

- decrease in labor input;

- increased dust protection.

The tasks are solved in that the control button is made of plastic material, mounted on a printed circuit board and through the holes in the case, scale and glass facing out, made a single part. The upper part of the button extending behind the glass has a smaller diameter than the part of the button located under the glass, the protrusion formed by the difference in diameters has a spherical shape corresponding to the spherical surface of the entrance part of the glass opening (the corresponding surfaces have the same radii).

The design made in this way allows:

- reduce the complexity of the assembly of devices, because the control button is made as a single part;

- increase the dust protection of devices, tk. a tension-compression spring presses the spherical protrusion on the control button to the spherical surface of the hole in the glass and thereby eliminates the gap between the button and the glass;

- the absence of a gap between the control button and the glass eliminates the rattle of the button when the vehicle is moving;

The proposed utility model is illustrated by the following drawings:

Figure 1, and figure 2 - Structural diagrams of the control buttons of the vehicle

The control button 1 (Fig. 1) of the vehicle device with the lower part 2 is installed in the hole on the printed circuit board 3, the main part of the control button 4 passes through the holes in the box 5 and scale 6.

The upper part of the button 7 (figure 1 and figure 2) passing through the hole 8 in the glass 9 has a smaller diameter than the part 4 located behind the glass.

The tension-compression spring 10 provides a snug fit of the spherical protrusion 11 of the control button to the spherical surface 12 of the hole in the glass.

At the bottom of the control button there is a protrusion 13, which, when pressed by the control button, switches the button 14 located on the printed circuit board.

The design of the control button made in this way reduces the laboriousness of the assembly of devices, increases dust protection, and also eliminates the noise from the vibration of the control button in the glass hole.

Claims (1)

The control button of the vehicle’s device, installed on the printed circuit board and through the holes in the housing, scale and glass, comes out, characterized in that it is made as a single part, and the part of the button that goes out through the hole in the glass has a smaller diameter than the part of the button located behind glass, the protrusion formed by the difference in diameters has a spherical shape corresponding to the spherical surface of the inlet part of the hole in the glass.