JPH051777Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to a device for preventing the separation of gaskets that have a waterproof effect and are incorporated into indicating instruments such as vehicle speedometers, tachometers, and alarm indicators. be.

[Conventional technology]

Indicators used for motorcycles, for example, are generally used with a portion exposed in the natural environment, so waterproof gaskets are provided to prevent rainwater from entering through the divided parts of the instrument case. For example, Utility Model 60-11019
No. 59-134016, No. 55-179322, etc. These are examples with a single instrument case, and a see-through plate is placed in front of the instrument case, and a roughly U-shaped cross section is placed around the periphery of the see-through plate to prevent water from entering through the joint between the instrument case and the see-through plate. A gasket made of an elastic material is crimped or fitted, and the gasket and a flange formed around the upper opening of the instrument case are crimped and fixed using an annular frame edge, and the gasket is pressed into contact with the instrument case to provide a waterproof effect. This is the configuration to obtain.

By the way, with the above configuration, it is possible to obtain a waterproof effect, but the crimping work is complicated,
Once assembled, problems arise such as the inability to replace parts inside the instrument case, so a configuration shown in FIG. 5 has been proposed to solve this problem. That is, for example, an indicating instrument 1 for a vehicle such as a speedometer, a tachometer, an alarm indicator, etc. is provided with an instrument body 4 in a lower case 3 of an instrument case 2 which is divided into two parts.
is stored and fixed, and the dial plate 5 is placed on the top of this instrument body 4.
and a pointer 6, and a gasket 8 made of an elastic body having a U-shaped cross section is provided at the upper open end 7 of the lower case 3.
The endpaper 9 fitted around the periphery is brought into contact with the endpaper 9. This endpaper 9 guides the light beam from the illumination lamp 10 attached to the bottom of the lower case 3 to the display section 11 constituted by the dial 5 and the pointer 6, and also This prevents the inside of the lower case 3 from being directly visible through the gap between the lower case 3 and the side peripheral surface of the lower case 3.

On the other hand, the upper case 12 that constitutes the instrument case 2 together with the lower case 3 has a transparent see-through plate 13 fixed to the upper surface 12a that makes the display section 11 visible.
Further, a flange portion 14 is formed at the lower opening.
A flange portion 15 is formed in which the inner side of the upper surface 12a of the upper case 12 is brought into contact with the packing 8, and the flange portion 14 is formed to protrude from the side peripheral surface of the lower case 3.
and these flange parts 14 and 15
upper case 1 by tightening with screws 16.
A gasket 8 is press-fitted between the upper surface 12a of the lower case 3 and the upper opening end 7 of the lower case 3, thereby providing a waterproof effect in the divided portions of the instrument case 2 and fixing the instrument case 2.

[Problem that the invention attempts to solve]

In the conventional example, the gasket 8 having a U-shaped cross section is attached to the periphery of the facing 9 by press-fitting or fitting into the U-shaped opening, so there is a problem that the pressing force or fitting force is small and it is easy to separate. be. In particular, when a plurality of instrument bodies 4 are housed in the instrument case 2 and a plurality of display sections 11 are provided, and these display sections 11 are divided by a single endpaper 9, the endpaper 9 is used as shown in FIG. The external shape of the gasket 8 may be complicated, and even if the gasket 8 is molded to match this shape, the installation work of crimping or fitting the gasket 8 to the periphery of the facing 9 is complicated, and furthermore, There was a problem in that the bent portion 17 of the gasket 8 floated outward and separated from the endpaper 9 after attachment.

In addition, since the packing 8 is an elastic body, it can be attached to the periphery of the endpaper 9 by utilizing its elasticity while absorbing slight positional deviation. There is also the problem that when stress is concentrated, it cannot be absorbed and detaches.

[Purpose of invention]

This invention was devised by focusing on the problems of the conventional example, and aims to provide a packing separation prevention device that strengthens the packing attached to the periphery of the endpaper and prevents it from coming off.

[Summary of the idea]

In order to achieve the above-mentioned object, this invention provides a cover in front of a plurality of display sections, a display window that partitions each of the display sections on the cover, and a packing made of an elastic material around the periphery of the cover. In the attachment, a connecting portion is formed on the gasket and is located outside the display window and connects the separated portions of the gasket.

[Effect]

According to this invention, by connecting the separated parts of the packing, the packing is prevented from shifting outward compared to the conventional method.

〔Example〕

Figures 1 and 2 show an embodiment of this invention applied to a vehicle indicator.

The indicator 18 has upper and lower cases 19 made of synthetic resin.
A plurality of instrument bodies 22, such as a speedometer, a tachometer, and a fuel gauge, are housed and fixed in the lower case 20 of an instrument case 21 consisting of a dial 23 and a A pointer 24 for indicating the measured value is provided in comparison with display indicators (not shown) such as scales and numbers provided on the dial plate 23, and the display unit 25 is constituted by the display indicator and the pointer 24,
Above this display section 25 is the bottom surface 2 of the lower case 20.
The light beam from the illumination lamp 26 attached to the display unit 25 is guided to the display unit 25, and the display unit 25
A cover 27 is provided to prevent the inside of the lower case 20 from being directly viewed through the gap between the side circumferential surface 20b of the lower case 20, and the cover 27 has a display partitioning each of the plurality of display sections 25. The window 28 and a wide partition 27a that connects the display windows 28 and partitions the display section 25 are formed, and a gasket 29 made of an elastic body having a substantially U-shaped cross section is provided around the periphery of the endpaper 27. Groove 30 opening in a letter shape
The upper opening end 2 of the lower case 20 is attached via this gasket 29 by press-fitting or fitting the peripheral edge into the upper opening end 2 of the lower case 20
A flange portion 31 formed at the lower opening end of the upper case 19 by placing the peripheral edge of the endpaper 27 on the upper case 19 and positioning and abutting the gasket 29 on the upper case 19, which is a see-through plate made of a transparent synthetic resin material; By tightening the flange portion 32 protruding from the side circumferential surface 20b of the lower case 20 and the mounting portion 34 of the protective cover 33 divided into upper and lower parts that covers the instrument case 21 with screws 35, the upper case 19 and the lower case are connected. The instrument case 21 is fixed by press-fitting the gasket 29 between the instrument case 20 and the instrument case 20, thereby making it possible to obtain a waterproof effect at the divided portions of the instrument case 21, thereby completing the assembly work.

On the other hand, the gasket 29 attached to the periphery of the endpaper 27 forms a flat connecting portion 36 which is located on the upper surface side of the partition portion 27a outside the display window 28 of the endpaper 27 and connects the separated portion.

That is, the packing 29 is prevented from expanding outward by the connecting portion 36, and is also prevented from bending inward by the partition portion 27a of the endpaper 27, so that it can be separated from the periphery of the endpaper 27. You can prevent them from leaving. Also, endpaper 27
is assembled into the instrument case 21 while the gasket 29 is in contact with the side surface of the upper case 19, so the gasket 29 has a facing 27 during assembly.
Frictional force is applied downward to the periphery of the facing, but since the connecting portion 35 is formed on the upper surface side of the endpaper 27,
It is possible to prevent the seal 29 from separating downward from the periphery of the facing 27, improving work efficiency.

Furthermore, even when the packing 29 is attached to a relatively large endpaper 27, the separated parts are connected by the connecting part 36, so it is difficult to deform, and compared to the conventional case, there is no misalignment, especially when bending. It also has the effect of preventing lifting that tends to occur in bent portions where stress is easily applied.

In addition, in the above embodiment, the shape of the connecting portion 36 formed on the packing 29 is
However, as shown in FIG. Substantially the same effect as in the above embodiment can be obtained using the material, and it is not necessarily necessary to form it into the same shape. Note that the shape of the partition portion 27a may also be set as appropriate.

Further, as shown in FIG.
By drilling 9, the packing 2 is further improved.
It can absorb the misalignment and loosening of 9 and prevent it from coming off. At this time, considering the magnitude of bending stress,
It is also possible to reduce the wall thickness by using the through hole 39 instead.

In each of the above embodiments, the connecting portion 36 or 38 of the packing 29 is arranged on the upper surface side of the endpaper 27.
Depending on the direction of the frictional force applied to 9, the endpaper 27
It can also be arranged on the lower surface side or on both upper and lower surfaces.

Furthermore, the display section in this invention is not limited to the one consisting of the pointer 24 and the display index provided on the dial 23 as shown in the above embodiment, but also includes a liquid crystal element, a fluorescent display tube, or a pilot lens. It may also be a lens part of an alarm indicator that displays one or more alarm indicators by blinking lamps.

Furthermore, the packing 29 is not limited to waterproofing, but can also be applied to vibration-proofing and cushioning.

[Effect of idea]

In this invention, a cover is disposed in front of a plurality of display sections, a display window is provided on the cover that separates the display sections, and a packing made of an elastic material is attached to the periphery of the cover.
A connecting part is formed on the packing, which is located outside the display window and connects the separated parts of the packing, and the packing is prevented from shifting outwards even due to external interference compared to the conventional case. It does not easily separate from the periphery. In addition, since the packing is less likely to deform and positioning during installation is easier, it is possible to further prevent separation of the packing, thereby providing a device for preventing separation of the packing which has great practical value.

[Brief explanation of the drawing]

Figures 1 and 2 show an embodiment of this invention,
Figure 1 is a sectional view, Figure 2a is an exploded perspective view of a main part, and Figures 2b and c are sectional views showing the assembled state taken along lines AA and BB in Figure 2a. Figure 3, 4th
The figures are all perspective views of essential parts showing other embodiments of this invention, and FIGS. 5 and 6 are sectional views and plan views of essential parts showing conventional examples. 25...display section, 27...endpaper, 28...display window, 29...packet, 36, 38...connection section.

Claims (1)

[Scope of utility model registration request] A cover is disposed in front of a plurality of display sections, a display window is provided on the cover that separates each of the display sections, and a gasket made of an elastic material is attached to the periphery of the cover, the cover being located outside the display window. 1. A packing detachment prevention device, characterized in that a connecting portion is formed on the packing to connect separated parts of the packing.