JPH05306946A - Closed type display - Google Patents

Abstract

PURPOSE:To obtain a closed type display which has a high productivity and can prevent a sealant from being released. CONSTITUTION:In this display 1, a transparent body 6 is sealed in a display window part 3 of a case 2 where a meter display part is laid out, with a sealant 7 and an engagement step part 4 which engages the transparent body 6 in formed to the display window part 3. In a supporting part 5 which is positioned between the upper surface of the engagement step part 4 and the transparent body 6, the transparent body 6 is provided so that it is lifted from the engagement step part 4 and the sealant 7 is included between the transparent body 6 and the engagement step part 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a closed type display device provided in, for example, an automobile or a motorcycle.

[0002]

2. Description of the Related Art For example, a motorcycle is equipped with a tachometer, a speedometer, an odometer, a trip meter, etc., and the meter display portions of these meters are arranged in a display window portion of a sealed display device. Is sealed with a transparent body such as transparent glass or transparent resin so that water and dust do not enter from the outside. The closed structure of the display window is shown in FIG. The transparent body 103 is provided on the engagement step portion 102 formed in the display window portion 101 of the case 100 via the sealant 104.

[0003]

As described above, the transparent body 10 is provided.
3 is the sealant 10 on the engagement step 102 of the display window 101.
The display window portion 101 is hermetically sealed by being engaged through the transparent body 10 and the transparent body 10 with respect to the engagement step portion 102 at the time of assembly.
Since the sealant is applied with the end of the transparent body 103 being in contact with the upper surface of the engagement step 102 in order to accurately position 3, the thickness of the sealant 104 cannot be secured sufficiently.

Therefore, when the sealed display device is affected by heat, the transparent body 103 is in close contact with the upper surface of the engaging stepped portion 102 due to the difference in thermal expansion coefficient between the case 100 and the transparent body 103. Then, a problem such as peeling of the sealant 104 occurs.

Here, it is conceivable to increase the thickness of the sealing agent in order to prevent the peeling of the sealing agent, but in order to increase the thickness of the sealing agent, the gap between the transparent body and the engaging step portion is simply widened. Since it becomes difficult to position the two during assembly, the productivity is reduced.

The present invention has been made in view of the above points, and an object of the present invention is to provide a hermetically-sealed display device which has high productivity and can prevent peeling of a sealant.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, a transparent body for covering the display window portion is provided in a display window portion of a case in which a meter display portion of the meter is arranged with a sealant. In a hermetically-sealed display device that is hermetically sealed, an engaging step portion for coupling a transparent body is formed in the display window portion, and the transparent portion is formed by a support portion located between the upper surface of the engaging step portion and the transparent body. It is characterized in that a body is provided so as to be floated from the engagement step portion, and a sealant is interposed between the transparent body and the engagement step portion.

[0008]

According to the present invention, the transparent body is provided in a state of being floated from the engaging step portion by the support portion located between the upper surface of the engaging step portion of the display window portion of the case and the transparent body. A sufficient thickness of the sealant interposed between the upper surface of the step and the transparent body is ensured. Therefore, even if it is affected by heat, the sealing property is improved without peeling off the sealant due to the difference in thermal expansion coefficient between the case and the transparent body. Further, the positioning of the transparent body with respect to the engagement step portion when applying the sealant is performed by supporting the transparent body with the support portion.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. 1 is a plan view of a sealed display device to which the present invention is applied, FIG. 2 is a sectional view taken along line II-II of FIG. 1, FIG. 3 is a sectional view taken along line III-III of FIG. 1, and FIG. FIG. 6 is a front view of an engagement step portion of the portion and a plan view of an engagement step portion of the display window portion of the case of FIG. 5.

In the figure, reference numeral 1 is a closed type display device, and a case 2 of the closed type display device 1 is made of, for example, a synthetic resin. The case 2 is formed with a rectangular display window portion 3, and a meter display portion such as a tachometer, a speedometer, an odometer, and a trip meter (not shown) is arranged in the display window portion 3.

Engaging step portions 4 are formed in the display window portion 3, and columnar supporting portions 5 are integrally formed at two lateral positions on the upper surface of the engaging step portions 4 and at one longitudinal position. Has been formed.
Further, the upper corner portion 4a and the lower corner portion 4b of the engagement step portion 4 are chamfered over the entire circumference to form cutting portions 4c and 4d.

A transparent body 6 is provided on the engagement step portion 4 of the display window portion 3.
, And the transparent body 6 is made of, for example, transparent glass or transparent resin. At the time of assembly, the transparent body 6 is placed on the upper surface of the support portion 5 to position the transparent body 6 with respect to the engagement step portion 4, and the sealing agent 7 is interposed between the transparent body 6 and the engagement step portion 4. Then, the display window portion 3 is sealed. The sealing agent 7 is made of, for example, silicon resin and is applied between the lower cutting portion 4d and the upper cutting portion 4c of the engagement step portion 4.

As described above, the transparent body 6 is engaged with the engagement step portion 4 of the display window portion 3, and the support portion 5 located between the engagement step portion 4 and the transparent body 6 forms the transparent body. 6 is entirely floated from the engagement step portion 4, whereby a wide space can be provided between the transparent body 6 and the engagement step portion 4, and the thickness of the sealing agent 7 is sufficiently secured. Therefore, even if it is affected by heat,
Due to the difference in thermal expansion coefficient between the case 2 and the transparent body 6, the sealing agent 7 is not peeled off and the sealing property is improved.

Further, by providing the engaging step portion 4 with the lower cutting portion 4d and the upper cutting portion 4c, the lower corner portion 4b of the engaging step portion 4 is provided.
Also, the thickness of the sealant 7 between the upper corner portion 4a and the transparent body 6 is sufficiently secured, and sufficient sealing is performed. Further, the positioning of the transparent body 6 with respect to the engagement step portion 4 when applying the sealing agent 7 can be performed by applying the transparent body 6 to the upper surface of the support portion 5, so that workability is improved. Even if the sealant 7 enters between the transparent body 6 and the upper surface of the support body 5, the amount thereof is small as compared with the place where the support portion 5 is not provided, and the workability is not impaired.

FIG. 6 is a sectional view of another embodiment of this closed type display device at the same position as in FIG. In this embodiment, the lower corner portion 4b of the engagement step portion 4 is chamfered over the entire circumference to form a lower cutting portion, but the upper corner portion 4a of the engagement step portion 4 is not chamfered. Thus, the sealing agent 7 is prevented from being exposed on the front side.

In both of the above embodiments, the columnar support portion is formed integrally with the engaging step portion of the case, but the columnar support portion may be formed integrally with the transparent body,
It may be separate from the engagement step and the transparent body. Further, the support portion is not limited to a columnar shape, and may have any shape as long as it can support the transparent body in a floating state on the engagement step portion.

[0017]

As described above, according to the present invention, the display window portion is formed with the engagement step portion for engaging the transparent body, and the support is located between the upper surface of the engagement step portion and the transparent body. Part, the transparent body is provided so as to float above the engagement step portion, and the sealant is interposed between the transparent body and the upper surface of the engagement step portion. Therefore, the space between the transparent body and the upper surface of the engagement step portion should be wide. The thickness of the sealant is sufficiently secured, and even if it is affected by heat, the sealant does not peel off due to the difference in the thermal expansion coefficient between the case and the transparent body, and the sealability is improved. improves.

Further, since the transparent body can be positioned with respect to the engaging step portion when applying the sealant by supporting the transparent body on the supporting portion, the transparent body can be easily positioned with respect to the engaging step portion. , Productivity is improved.

[Brief description of drawings]

FIG. 1 is a plan view of a sealed display device.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a sectional view taken along the line III-III in FIG.

FIG. 4 is a front view of an engagement step portion of a display window portion of the case.

FIG. 5 is a plan view of an engagement step portion of a display window portion of the case.

FIG. 6 is a cross-sectional view of another embodiment of the hermetically sealed display device at the same position as in FIG.

FIG. 7 is a cross-sectional view showing a closed structure of a display window portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sealed display device 2 Case 3 Display window part 4 Engagement step part 5 Support part 6 Transparent body 7 Sealant

Claims (1)

[Claims] 1. A hermetically sealed display device in which a transparent body covering the display window is sealed in a display window of a case in which a meter display of the meter is arranged with a sealant. An engaging step portion is formed, and the support is located between the upper surface of the engaging step portion and the transparent body, and the transparent body is provided so as to float from the engaging step portion. A hermetically sealed display device, characterized in that a sealant is interposed between the engaging step portion.