JPH10162688A - Depressing operation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide excellent waterproofness and improve the fitting strength of a dustproof member by providing a peripheral wall section toward the inner face side of a case on an operation hole section, providing a bottom wall section continuously to the peripheral wall section, and providing an integrally erected inner periphery erect wall section continuously to the bottom wall section. SOLUTION: The water directly entering from the outside of a case 1 is cut off by an erect peripheral wall section integrally provided from the case 1. A dustproof member E is satisfactorily release-stop-supported on the bottom wall section 6 of the case 1. Since the erect peripheral wall section 8 is covered by a cover section 12 provided on the dustproof member E in addition to the erect peripheral wall section 8, water is further cut off. A space section S is formed by the erect peripheral wall section 8 and the cover section 12 provided at the peripheral edge of a pressing operation section 9, and the moisture transferred from contact positions by a capillary phenomenon is cut off by the space section S having the prescribed interval.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push operation device provided with an operation portion such as a switch of a timepiece and an operation portion such as an operation shaft such as a trip counter from the outside of a case.

[0002]

2. Description of the Related Art As this type of pressing operation device, for example, the one shown in FIGS. 4 and 5 is known. In the case of this conventional structure, an operation section b, for example, an operation section b which is pressed when resetting a clock or adjusting time, is provided in a case a, and an operation hole c is formed in the case a, for example, a front cover a. An elastically deformable, for example, rubber dustproof member d is fitted into the operation hole c.

In the pressing operation device having the conventional structure, the dustproof member d is formed with a mounting portion e having an annular groove to be fitted into the operation hole c of the front cover a.
A pressing bottom portion f of the dustproof member d provided so as to be continuous with the mounting portion e and corresponding to the operation portion b is formed.

[0004]

The pressing operation device may be installed at a location exposed to rainwater or the like depending on the use conditions. Therefore, the operation hole c of the front cover a and the mounting portion e of the dustproof member d are provided. There is a problem that sealing must be performed by applying an adhesive g or the like so that water or the like does not intrude from the space between them, which is troublesome in assembling workability. It may not be possible to keep watertight between the operation hole c of the cover a and the dustproof member d.

Accordingly, an object of the present invention is to provide a pressing operation device which is excellent in waterproofness without using an adhesive and can maintain good mounting strength of a dustproof member.

[0006]

According to the present invention, there is provided an operation portion which is pressed in a case, an operation hole is provided at a position of the case opposite to the operation portion, and the operation hole has an elasticity. An extendable dustproof member is disposed, a pressing bottom of the dustproof member is disposed toward an operation unit in the case, and a pressing operation unit of the dustproof member is pressed to press the operation unit. In the configured pressing operation device, the operation hole portion includes:
A peripheral wall portion provided toward the inner surface side of the case, a bottom wall portion provided integrally with the peripheral wall portion toward the center direction of the operation hole, and a bottom wall portion provided continuously with the bottom wall portion; An inner peripheral rising wall portion integrally provided toward the outer surface side, and a rising peripheral wall portion integrally provided from the case on the outer surface side of the case are provided, and the dustproof member is fitted into the operation hole portion. A pressing operation portion operable from the outside, a locking portion provided on a peripheral edge of a pressing bottom portion of the pressing operation portion, for retaining and supporting the bottom wall portion of the operation hole portion; And a covering portion surrounding the rising peripheral wall portion of the case integrally with the periphery. Further, in claim 1, between the outer peripheral wall surface of the rising peripheral wall portion and the inner peripheral wall surface of the covering portion, between the rising peripheral wall portion provided integrally from the case and the covering portion provided on the peripheral edge of the pressing operation portion. In that a space is provided.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An operation hole provided in a case is provided with a peripheral wall toward the inner surface side of the case, and a bottom wall is formed integrally with the peripheral wall toward the center of the operation hole. By providing an inner peripheral rising wall that rises integrally toward the outer surface side of the case continuously with the bottom wall, it is possible to fix and hold the elastically expandable dustproof member while increasing the mounting strength thereof, and With the rising peripheral wall portion integrally provided from the case on the outer surface side of the case, it is possible to block water that is going to directly enter,
The dustproof member provided with a pressing operation portion which is fitted into the operation hole portion and can be operated from the outside is provided on a peripheral portion of a pressing bottom portion of the pressing operation portion so as to prevent the bottom wall portion of the operation hole portion from coming off. A stopping portion is provided, and a covering portion is provided around the rising peripheral wall portion of the case integrally with the periphery of the pressing operation portion, so that the dustproof member can prevent the case from coming off from the case. In addition to the rising peripheral wall portion of the case, the covering portion can directly block water that is likely to intrude from the outside, and the rising peripheral wall portion integrally provided from the case and the pressing operation By providing a space between the outer peripheral wall surface of the rising peripheral wall portion and the inner peripheral wall surface of the coating portion in the covering portion provided on the peripheral edge of the portion, water is turned by capillary action. It is possible to prevent the Rukoto.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As a pressing operation device to which the present invention is applied, a timepiece assembled in a meter case for a motorcycle exposed to an external atmosphere will be described in detail as an example. Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIGS. 1 to 3 show a first embodiment of the present invention, in which a printed circuit board 2 is disposed in a case 1 for accommodating a motorcycle meter and the like.
A display 3 made of liquid crystal or the like, circuit components (not shown), and the like are assembled on the printed circuit board 2. The display of the display 3 is further switched on the printed circuit board 2, and the display value of the display 3 is corrected. Switch 4 to be the operation unit
Is assembled.

An operation hole H is provided in the upper case 1 portion facing the switch 4 serving as the operation portion.
An elastically expandable and contractible dustproof member E such as synthetic rubber for operating the switch 4 is inserted into the operation hole H.

In the first embodiment, the operation hole H of the case 1 is provided with a peripheral wall 5 toward the inner surface side of the case 1, and the operation hole H is connected to the peripheral wall 5. A bottom wall 6 is provided integrally toward the center of the case 1, and an inner peripheral rising wall 7 is provided continuously rising from the bottom wall 6 toward the outer surface of the case 1. An annular rising peripheral wall 8 is provided integrally with the case 1 on the outer surface side of the case 1.

The dustproof member E has an operation hole H
A pressing operation portion 9 is provided which is fitted into the case 1 and which can be operated from the outside. The pressing bottom portion 10 of the pressing operation portion 9 is disposed toward the switch 4 serving as the operation portion in the case 1. A locking portion 11 is provided at a peripheral portion of the bottom wall portion 6 of the operation hole portion H to prevent the operation hole portion H from falling off, and an inner peripheral rising wall portion of the case 1 is integrally formed from a peripheral edge of the pressing operation portion 9. 7 is provided with a covering portion 12.

In this case, the locking portion 1 is
1 is formed so as to be tapered and divergent, so that it can be easily inserted when the dustproof member E is assembled into the operation hole H, and can be supported by the locking portion 11 after the insertion.

The outer peripheral wall 8A of the annular rising peripheral wall 8 includes a rising peripheral wall 8 provided integrally with the case 1 and a covering portion 12 provided on the periphery of the pressing operation portion 9 of the dustproof member E. A predetermined space portion S is provided between the cover portion 12 and the inner peripheral wall surface 12A.

In the pressing operation device having the above structure, the rising peripheral wall portion 8 integrally provided from the case 1 on the outer surface side of the case 1 blocks water that is going to directly enter from the outside of the case 1. The dust-proof member E fitted with the operation hole H and provided with the pressing operation portion 9 which can be operated from the outside of the case 1 is provided on the periphery of the pressing bottom portion 10 provided on the bottom surface portion of the pressing operation portion 9. The operation hole H is satisfactorily supported on the bottom wall 6 of the case 1 by the locking portion 11 having a diameter larger than the diameter of the bottom wall 6 of the operation hole H.

Also, in addition to the rising peripheral wall portion 8,
By covering the rising peripheral wall portion 8 with the covering portion 12 provided on the dustproof member E, it is possible to block water that is going to directly enter from the outside, and is provided integrally with the case 1. A space S is provided between the outer peripheral wall surface 8A of the rising peripheral wall portion 8 and the inner peripheral wall surface 12A of the covering portion 12 in the raised peripheral wall portion 8 and the covering portion 12 provided on the peripheral edge of the pressing operation portion 9. Accordingly, it is possible to prevent the water flowing from the portion where the rising peripheral wall portion 8 and the covering portion 12 are in contact with each other due to the capillary phenomenon from being transmitted by the space S having a predetermined interval. There is.

Therefore, in the conventional configuration, it was necessary to apply an adhesive or the like due to the problem of airtightness. However, the pressing operation device having the configuration of the present invention can maintain the waterproofness and can prevent the dustproof member from being pressed. The mounting strength can be kept good while taking into account the assembling workability.

Although not shown, the height and width of the rising peripheral wall integrally provided from the case on the outer surface side of the case, or the like, in terms of the mounting strength and the degree of retaining of the dustproof member, the airtightness, and the like. The shape and thickness of the pressing operation portion of the dustproof member and the shape and thickness of the locking portion provided on the peripheral portion of the pressing bottom of the pressing operation portion may be appropriately set.

[0018]

According to the pressing operation device of the present invention, it is possible to shut off water that directly intrudes from the outside of the case by the rising peripheral wall integrally provided from the case on the outer surface of the case. Also, the locking portion provided on the dustproof member provided with the pressing operation portion which is fitted into the operation hole portion and can be operated from the outside of the case is satisfactorily supported against the bottom wall portion of the operation hole portion. Further, in addition to the rising peripheral wall portion, the covering portion provided on the dustproof member covers the rising peripheral wall portion, so that water that is likely to directly enter from the outside can be shut off. By providing a space between the outer peripheral wall of the rising peripheral wall portion and the inner peripheral wall surface of the covering portion, in the rising peripheral wall portion integrally provided from the case and the covering portion provided on the periphery of the pressing operation portion, It is possible to shut off the water flowing from the space where the rising peripheral wall portion and the covering portion are in contact with each other due to the capillary phenomenon, and the water transmitted by the space portion having a predetermined interval. In the configuration of the above, it was necessary to apply an adhesive or the like due to the problem of airtightness, but it is said that the pressing operation device having the configuration of the present invention can maintain the waterproofness. , There is an effect that it is possible to maintain even better attachment strength taking into account the assembling workability of the dustproof member.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a pressing operation device according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a main part of the pressing operation device according to the first embodiment of the present invention.

3 is a cross-sectional view showing a state before assembling a dustproof member of the pressing operation device in FIG. 2;

FIG. 4 is a sectional view showing a conventional pressing operation device.

FIG. 5 is a sectional view showing a main part of the pressing operation device of FIG. 4;

[Explanation of symbols]

 E Dust-proof member H Operation hole S Space 1 Case 3 Display 4 Switch (operation part) 5 Peripheral wall 6 Bottom wall 7 Inner peripheral rising wall 8 Rising peripheral wall 9 Pressing operation part 10 Pressing bottom part 11 Locking part 12 Coating

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI H01H 13/06 H01H 13/06 A

Claims (2)

[Claims] 1. An operation part to be pressed is provided in a case, an operation hole is provided at a position facing the operation part of the case, and an elastically expandable and contractible dustproof member is provided in the operation hole. In the pressing operation device, the pressing bottom of the dust-proof member is disposed toward the operation portion in the case, and the pressing operation portion of the dust-proof member is pressed to press the operation portion. A peripheral wall portion provided toward the inner surface side of the case, a bottom wall portion provided integrally with the peripheral wall portion toward the center of the operation hole, and a bottom wall portion provided at the operation hole portion. And an inner peripheral rising wall portion integrally provided upright toward the outer surface side of the case, and a rising peripheral wall portion integrally provided from the case on the outer surface side of the case, and the dustproof member includes A press operation unit fitted into the operation hole and operable from outside; A locking portion provided on a peripheral portion of a pressing bottom portion of the pressing operation portion, for retaining and supporting the bottom wall portion of the operation hole portion; and a rising peripheral wall portion of the case integrally formed from a peripheral edge of the pressing operation portion. And a covering portion surrounding and disposed on the pressing operation device. 2. A space between an outer peripheral wall surface of the rising peripheral wall portion and an inner peripheral wall surface of the covering portion in a rising peripheral wall portion provided integrally from the case and a covering portion provided on a peripheral edge of the pressing operation portion. The pressing operation device according to claim 1, further comprising a portion.