JPS632353Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hydraulic fluid reservoir for a tandem master cylinder used in a brake device of an automobile or the like.

Conventionally, this type of device includes a main body with an internal space, a float inserted into the internal space so as to be able to move up and down, a magnet provided at the bottom of the float, and a magnet that moves as the magnet approaches a predetermined position. A reed switch that is operable and is disposed on the lower exterior of the main body, and two cylindrical pipes that are independently connected to two fluid connections of a tandem master cylinder that is provided on the lower part of the main body, and to which hoses are connected. a joint portion; two protrusions provided on the outside of the main body;
It is known that these two protrusions are provided with a support part fixed to each row and a mounting fixture having a base part to be attached to the vehicle body.

However, in these conventional devices, the reservoir is located at a distance from the master cylinder, so the reed switch is directly exposed to the space where the reservoir is located, and after the reservoir is installed on the vehicle body, the reservoir cannot be opened. If other work is performed nearby, there is a problem in that the work tool may come into contact with the work tool and cause damage due to direct impact.

The present invention was made in view of the above problems, and an object of the present invention is to provide a hydraulic fluid reservoir for a tandem master cylinder that can prevent damage to a reed switch. This purpose, according to the present invention, includes a main body forming an internal space, a float inserted into the internal space so as to be movable up and down, a magnet provided at the bottom of the float, and a A reed switch that can be operated at the lower part of the main body and a tandem master cylinder provided at the lower part of the main body are independently connected to two liquid connection parts, and two cylinders to which hoses are connected are connected. A tandem vehicle comprising: a shaped joint portion; two protrusions provided on the outside of the main body; and a mounting fixture having a support portion that is separately fixed to the two protrusions and a base portion that is attached to the vehicle body. In the master cylinder hydraulic fluid reservoir, the two joints are arranged side by side, the reed switch is disposed between the joints, and the fitting is passed between the two joints or between the two hoses. This is achieved by a substantially U-shaped hydraulic fluid reservoir for the tandem master cylinder that straddles the lower part of the main body to cover the reed switch.

The details of the present invention will be explained below based on the illustrated embodiments.

In the figure, the hydraulic fluid reservoir for a tandem master cylinder of this embodiment is indicated as a whole by 1, and its main body 2 is made of synthetic resin, and has a space 3 therein for storing hydraulic fluid. This space 3 opens upward and is covered by a cap 4. The cap 4 is made of synthetic resin and consists of a combination of an upper cover part 5 and a lower cover part 6 shaped as shown in the figure, with a valve member 8 made of rubber interposed between them. The lower cover part 6 is the main body 2
The seal member 7 is fitted into the upper end of the seal member 7. Further, a plate-shaped wave shielding portion 9 is integrally formed at the lower end portion of the lower cover portion 6. Such a cap 4 prevents moisture from entering the space 3 of the main body 2 as much as possible, and even if not shown, the pressure in the space 3 storing hydraulic fluid up to a certain level is always kept from atmospheric pressure to a predetermined pressure. It is automatically adjusted by the valve member 8 so that it is within the range of .

A reed switch holding cylinder 10 is integrally formed in the center of the bottom of the main body 2, and a reed switch holding cylinder 12 with a reed switch 11 mounted therein is inserted into the reed switch holding cylinder 10 and is pulled out by its locking part 13. A stop is made. Two lead wires 14 are led out from the holding cylinder 12. A float 15 is disposed inside the main body 2 so as to be movable up and down while being guided by a guide 16 formed integrally with the main body 2 in the vertical direction, and a permanent magnet 17 is fixed to the lower part of the float 15 . In the illustrated state, no hydraulic fluid is stored, so the float 15 is at the lowest position, and the permanent magnet 17 is at a position where the reed switch 11 is actuated.

Liquid connection holes are further formed at the bottom of the main body 2 on both sides in the longitudinal direction of the reed switch holding cylindrical portion 10, and a cylindrical joint portion 18 is integrally connected to the liquid connection hole.
19 is formed. Hoses 20 and 21 are connected to the joints 18 and 19, respectively, and hose fasteners 22 and
23. The hoses 20 and 21 are connected to a tandem master cylinder, although not shown.

Further, a pair of protrusions 24 and 25 are formed on the outside of the main body 2 on the left and right sides in FIG. 2, and a substantially U-shaped fixture 26 is fixed to these. That is, both ends of the fixture 26 are bent to form the supporting parts 27,
28, and threaded cylinders 29 and 30 having threads formed therein are fixed by welding. Projection 2
The fitting 26 is fixed to the reservoir body 2 by inserting the double washers 31, 32 into the screw insertion holes formed in the screw holes 4, 25, inserting the screws 33, 34, and screwing them into the screw cylinders 29, 30 and tightening them. Ru. As shown in FIG.
21 and extends across the reed switch holding cylinder 10, and two mounting bolts 36 are fixed to its base 35 by welding. is fixed to a part of the vehicle body (not shown).

As shown in FIG.
A lead wire support portion 38 is integrally formed on one side wall portion of the reed switch holding cylinder portion 10 at an angle θ with respect to the joint portions 18 and 19. That is, the joint portion 18,
19 and the lead wire support part 38 are molded in the same mold frame. Lead wire guide surface 38 of lead wire support portion 38
The lead wire 14 is guided on the guide surface 38a.
It is bent almost at right angles at one edge and guided in the Y direction. The lead wire 14 is connected to an alarm device 37 including a power source, a buzzer, and the like.

The embodiment of the present invention is configured as described above,
The function of this reservoir 1 is similar to that of a normal reservoir, so a description thereof will be omitted. However, it has the following unique effects.

That is, the fitting 26 connects the two joints 18, 1
9 or between the two hoses 20 and 21, and extends so as to straddle the reed switch holding cylindrical portion 10. Further, since the joint parts 18, 19 and the hoses 20, 21 are located on both sides of the reed switch holding cylinder part 10, the holding cylinder part 10 is surrounded by these parts. Therefore, even if some work is performed in this vicinity, the tool is prevented from coming into contact with the lead wire holding cylinder section 10. That is, the reed switch 11 mounted on the lead wire holding cylinder 10 is protected from impact caused by a tool, etc., and is prevented from being damaged.

In addition, as shown in FIG. 3, the lead wire support portion 38
is inclined at an angle θ with respect to the bottom 2a of the reservoir body 2, so it can be pulled toward the Y direction, that is, the alarm device 37 side, but the edge of the lead wire guide surface 38a is in the X direction, that is, the reed switch side. Since the lead wire 14 tries to get caught between the bottom part 2a of the main body 2 and the bottom part 2a of the main body 2, it cannot be pulled out. This prevents the lead wire 14 from sagging between the lead switch 11 and the lead wire support portion 38 after wiring. As described above, such a lead wire support portion 38 can be easily molded because it has the same inclination angle as the joint portions 18 and 19.

Although the embodiments of the present invention have been described above, the present invention is of course not limited thereto, and various modifications can be made based on the technical idea of the present invention.

As described above, according to the hydraulic fluid reservoir for a tandem master cylinder of the present invention, the reed switch is surrounded by two joints, hoses, fittings, and the main body of the reservoir, and is directly connected to the reed switch. Since impact can be prevented from acting, damage to the reed switch can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a side view of a hydraulic fluid reservoir for a tandem master cylinder according to an embodiment of the present invention, FIG. 2 is a cross-sectional view along the - line in FIG. 1, and FIG.
It is a partial enlarged sectional view in the - line direction in the figure. In the figure, 1... hydraulic fluid reservoir for tandem master cylinder, 2... body, 3... space,
10...Reed switch holding cylinder part, 11...Reed switch, 15...Float, 17...Permanent magnet, 18, 19...Joint part, 20, 21...Hose, 24, 25...Protrusion, 26 ...Mounting tool, 2
7, 28...support part, 35...base.

Claims (1)

[Scope of utility model registration request] A main body forming an internal space, a float inserted into the internal space so as to be movable up and down, a magnet provided at the bottom of the float, and a magnet that is operable when the magnet approaches a predetermined position and is located below the main body. A reed switch disposed externally, two cylindrical joints provided at the bottom of the main body that are independently connected to the two fluid connection parts of the tandem master cylinder, and to which hoses are connected; A hydraulic fluid reservoir for a tandem master cylinder, comprising two protrusions provided externally, and a fixture having a support part fixed to each row of the two protrusions and a base part to be attached to the vehicle body, The two joint parts are arranged side by side and the reed switch is disposed between the joint parts, and the fitting is passed between the two joint parts or between the two hoses to cover the reed switch. A hydraulic fluid reservoir for a tandem master cylinder that is substantially U-shaped and straddles the lower part.