JPH043226Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a waterproof structure for an odometer reset device in a two-wheeled vehicle instrument that is exposed to the outside.

[Technical background of the invention and its problems]

Generally, the mileage of a vehicle is displayed by arranging multiple numeric wheels on the shaft and carrying them up by driving the lower digits.For example, the mileage is displayed using a speedometer transmission cable or a pulse motor. The numerical values are obtained and visually confirmed through the window of the instrument housing.

Further, such a totalizer employs a so-called trip meter equipped with a zero reset mechanism, but its operating section must be led out of the instrument housing so that the driver can perform the reset operation at his/her discretion.

By the way, since the instrument housing of a two-wheeled vehicle is mounted in a state where it is exposed to the outside air, a waterproof structure is required to prevent the intrusion of rainwater and the like. In particular, since the reset operation section of the totalizer operates the internal mechanism of the instrument housing from the outside, it is desirable to have a structure that prevents water from entering through the hole through which the operation shaft passes.

Conventionally, as a waterproof structure for such a totalizer reset operating section, the operating shaft is covered with an elastic rubber member and the pressing stroke is ensured by the elasticity of the rubber member. Common.

However, the covering structure using the rubber member described above requires a relatively large installation area considering the elastic deformation of the rubber member relative to the diameter of the operating shaft, and also has a shape in which a large operating section is disposed on the front surface. Not only that, the elastic deformation of the rubber member itself is visible from the outside, giving a sense of discomfort to the original design of the instrument.

[Purpose of invention]

The present invention has a structure in which the totalizer reset operation part simply protrudes from the opening hole in the instrument housing.
To provide a waterproof structure for a reset device that prevents rainwater and the like from entering the instrument housing and allows the user to freely select the balance with the instrument design.

[Summary of the idea]

In order to achieve the above object, a pressure knob for pressing the totalizer reset operating shaft is inserted through a hole in the instrument housing, and a saucer part is integrally provided inside the housing of the pressure knob to cover the hole. It is also characterized by being provided with a drain pipe that hangs down from the saucer portion and continues to the outside of the housing.

[Example of idea]

FIG. 1 explains the typical structure of the reset device according to the present invention. The instrument housing 1 is composed of an upper case 2, a lower case 3, and left and right transparent windows 4. The housing 1 includes a speedometer. 5 and a tachometer 6 are housed therein. A totalizer 7 is installed on the speedometer 5 and is driven together with the speedometer 5 by a transmission cable (not shown).The totalizer 7 has a plurality of number wheels 8 arranged in a heart cam type, and displays the cumulative distance traveled. do. In addition, the zero reset of the totalizer 7 is performed by converting the vertical movement of the operating shaft 10 into rotational movement by the transmission plate 9 to the cam fixed to the rotating shaft end of the reset arm which releases the pinion gear and presses the heart cam. This can be done by communicating. Such a structure is known from Utility Model Publication No. 56-32929.

A through hole 12 for a press knob 11 for resetting the totalizer 7 is formed on the front side of the instrument housing 1. The pressing knob 11 is used to press the head of the operating shaft 10 to move it up and down as shown in FIG.
A saucer portion 13 that protrudes from the hole 12 to the front and covers the hole 12 is integrally formed inside the housing 1 . In the case of this embodiment, the operating section includes both the press knob 11 and the saucer section 13 made of a hard rubber material, and the peripheral end portion of the saucer section 13 is connected to the housing 1.
It is fixed to the inner surface by gluing or clamping. Furthermore, a drain pipe 14 is integrally formed at the bottom of the saucer portion 13, communicating with the space on the side of the hole 12 and facing the outside through an opening provided at the bottom of the housing 1.

According to the above structure, the reset operation of the totalizer 7 is performed by pressing the pressure knob 11, and the operation shaft 10 is reset.
This can be done in the same way as in the past by moving up and down.

Here, according to the characteristic structure of this embodiment, the intrusion of rainwater etc. into the housing 1 can be almost completely prevented, and in terms of appearance, there are no restrictions on the design compared to the conventional waterproof structure. No free knob shape can be provided.

That is, water that has entered through the gap between the hole 12 of the meter housing 1 and the press knob 11 is received by the saucer portion 13 without scattering into the meter housing 1 and wetting the inner unit. The water remaining in the saucer portion 13 is successively drained out of the housing 1 through the drain pipe 14. Therefore, substantially the housing 1
The inside and outside of the press knob 11 are almost completely separated by the saucer part 13 and the drain pipe 14, and the press knob 11
The through hole 12 functionally exhibits the same effect as if it were provided outside the housing 1. This results in
The waterproof effect is almost complete.

In addition, since only the press knob 11 that passes through the hole 12 on the front surface of the instrument housing 1 is visible from the outside, the shape and size of the hole 12 and the press knob 11 that protrudes through it are determined by the internal waterproof structure. It is possible to design freely without affecting the instrument design in any way, and it is also possible to provide a good appearance that matches the instrument design.

FIG. 3 shows another embodiment of the present invention,
The operating section including the pressing knob 15 is made of synthetic resin. The saucer portion 16 is integrally molded with the pressure knob 15 together with the drain pipe 17, and all of these parts are attached to the pressure knob 1.
It moves up and down by the same stroke in conjunction with the press reset operation in step 5. In this case, the hole 12 of the housing 1
is provided with a waterproof wall 18 that hangs integrally from the inner surface of the housing 1 around the housing 1. This is due to the rising wall 1 of the saucer section 16 when it descends together with the press knob 15.
6a, which is effective in preventing direct opening from the hole 12. In addition, drain pipe 17
The pressure knob 15 also descends together with the pressure knob 15, but this may be structured to be able to move up and down by penetrating the bottom opening of the housing 1.

Note that if you do not like the drain pipe 17 to protrude outside the housing 1, only the drain pipe 17 portion may be formed of a rubber member and fitted into the saucer portion 16 as shown in FIG. 4, or as shown in FIG. As shown, shorten the drain pipe 17 and install the housing 1 to surround it.
A structure may be adopted in which a cylindrical portion 18 is integrally projected from the bottom and the drain pipe 17 is arranged to move up and down within the cylindrical portion 18. In either case, the housing 1
There is no change in the effect of drainage to the outside.

[Effect of idea]

According to the present invention, the inside and outside of the instrument housing can be almost completely separated by the saucer part and the drain pipe connected to the press knob, effectively preventing rainwater etc. from entering the housing, and improving the internal operation. can be protected. In addition, it is possible to freely select the knob shape and size to suit the instrument design without affecting the internal waterproof structure in any way, which has the excellent effect of increasing the degree of freedom in instrument design as well as being waterproof. It is something that plays.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing a typical structure of a meter equipped with a reset device according to the present invention, Fig. 2 is a sectional view of essential parts showing an embodiment of the waterproof structure of the reset device, and Figs. 3 to 5 FIG. 2 is a sectional view of a main part of another embodiment of a reset device having a waterproof structure according to the present invention. 1...Instrument housing, 2...Upper case, 3...
...Lower case, 4...See-through window, 5...Speedometer, 6
... Tachometer, 7... Totalizer, 8... Number wheel, 9...
. . . Transmission plate, 10 .

Claims (1)

[Scope of utility model registration request] The mileage totalizer is housed in the instrument housing,
This two-wheeled vehicle instrument in which the zero-resetting operation part of the totalizer is led out of the housing includes a pressing knob inserted through a hole in the meter housing so as to press the reset operation shaft of the totalizer. At the same time, a saucer portion covering the hole portion is integrally provided inside the housing of the press knob, and a drain pipe communicating with the space on the hole side is provided in the saucer portion, and its open end extends outside the instrument housing. A waterproof structure for a reset device in a two-wheeled vehicle totalizer, characterized in that the reset device is arranged so as to hang down so as to face the user.