JPS5845158Y2 - Vehicle master cylinder - Google Patents

Description

[Detailed description of the invention] The present invention relates to a mask cylinder for vehicles, particularly a mask cylinder for two-wheeled vehicles, and includes a reservoir provided on the mask cylinder body and a cap thereof extending around the mirror mounting boss portion integrally formed on the mask cylinder body. A cap suppressing and holding member with an elastic force that spans the top surface of the □ roller mounting boss and the top surface of the cap is loosely inserted into the mirror mounting shaft that is extended and screwed onto the mirror mounting boss, and the cap is suppressed by the mirror mounting shaft fixing member. The cap is attached to the reservoir via a holding member, and the mirror attachment shaft is fixed to the mirror attachment boss.The purpose of this feature is to attach the cap to a part of the reservoir at the same time as attaching the mirror. This reduces the number of parts and work steps, and prevents the risk of assembling the cap in the wrong direction.When removing the cap when refueling the reservoir, simply loosen the nut. It is not necessary to remove the cap suppressing and holding member from the cylinder body, and the reservoir is extended to the circumference of the mirror mounting boss to make the reservoir thicker, which allows for a larger volume of fluid. To provide a mask cylinder for a vehicle whose height can be reduced.

The illustrated embodiment will be described below.

First, an embodiment shown in FIGS. 1 and 2 will be explained. 1 is a mask cylinder body, 2 is a mirror mounting boss portion formed integrally with the body 1, and 3 is formed separately from the mask cylinder body 1. Mirror mounting boss part 2 with the reservoir
A bifurcated extension part 3 with one side extended to approximately half the circumference of the
a, 3b and are fixed to the mask cylinder body 1 with screws 4, 4.

Reference numeral 5 denotes a cap of the reservoir 3, which has a planar shape substantially the same as that of the reservoir 3, and has a bifurcated extending portion 5a extending from its negative side to approximately half the circumference of the mirror mounting boss portion 2;
5b, and the other side of the cap 5 is fixed to the other side of the reservoir 3 by screws 6.6.

Note that the cap 5 and the reservoir 3 are attached to the mask cylinder body 1 at the same time by using a long screw 6.6 instead of using the screw 4.4 that fixes the reservoir 3 to the mask cylinder body 1.
It may be fixed to

7 is a port that communicates between the reservoir 3 and the cylinder.

Reference numeral 8 denotes a mirror mounting shaft, which is screwed into a hole 9 formed in the gee mounting boss portion 2, and a nut 10 which is screwed onto the mounting shaft 8.
It is fixed to the mirror mounting boss part 2 by.

Reference numeral 11 denotes a cap suppressing and holding member, which has a hole 11c' into which the mirror mounting shaft 8 is loosely inserted, and a holding plate 11a having elasticity on both sides of the hole 11c.

11b is extended, and projections 12a, 12b are formed on the lower surfaces of the tips of the holding plates 11a, 11b.

A nut 10 is inserted into the hole 11c of the cap suppressing and holding member 11.
Loosely insert the mirror mounting shaft 8 screwed into the hole 9.
The protrusions 12a, 12b of the retaining plates 11a, 11b
The extended portion 5a of the cap 5.

5b, and tighten the nut 10 to fix the mirror mounting shaft 8 to the boss part 2, and also use the resilient force of the retaining plates 11a and 11b to hold the cap 5. Press and attach to reservoir 3.

The above-mentioned engagement between the actual marks 12a and 12b of the holding plates 11a and 11b and the recesses 13a and 13b of the cap 5 is for preventing rotation of the cap suppressing and holding member 11 when fixing with the nut 10 or for positioning after fixing. Alternatively, as shown in FIG. 3, locking pieces 14a and 14b may be formed on one side of the holding plates 11a and 11b of the cap pressing and holding member 11, and the locking pieces 14a and 14b may be locked on a shoulder on one side of the cap 5. good.

In this embodiment, the nut 10 is used as a mirror mounting shaft fixing member.

15 is a handlebar, 16 is an operating lever, and an operating lever mounting portion 17 formed in a forked shape on the mask cylinder body 1.
Insert between upper arm 17a and lower arm 17b, and tighten lever bolt 1.
8 to the hole 19a of the upper arm 1γa and the hole 16a of the operating lever 16
1. Pass through the hole 19b of the lower arm 17b, sandwich the washer 20, and screw it onto the operating lever mounting part 17 with the nut 21.
An operating lever 16 is rotatably supported on a lever bolt 18.

Reference numeral 22 denotes a handle attachment part formed on the mask cylinder body 1, and an upper arm 22a and a lower arm 22b formed on the attachment part 22.
I'm holding a handlebar par 15.

Reference numeral 23 denotes a handle attachment member, and the upper arm 23a and lower arm 23b formed on the attachment member 23 sandwich the handle bar 15, and the upper arm 23a and the lower arm 23b are attached to the master cylinder body 1.
Upper arm 22a and lower arm 2 formed on the side handle attachment part 22
2b, respectively, by screwing the fixing poles 24a and 24b, and fixing the handle attachment member 23 to the handle attachment part 22 on the mask cylinder body 1 side by sandwiching the handlebar 15.

In the above embodiment, the reservoir 3 is formed separately from the mask cylinder body 1, but it is of course possible to form the reservoir 3 integrally with the mask cylinder body 1.

Further, the other side of the cap 5 is fixed to the reservoir 3 using elastic holding plates 25a and 2 having the same shape as the cap suppressing and holding member 11, as shown in FIG.
5b and screwed onto the reservoir 3 or the mask cylinder body 1 through the cap 3.

Next, another embodiment will be explained with reference to FIG.
0 is extended to form an extended part 31 that surrounds the entire circumference of the □ gee mounting boss part 2, and the cap 50 also has an extended part that surrounds the entire circumference of the mirror mounting boss part 2. 51, it is possible to make the volume of the reservoir 30 even thicker as in the previous embodiment. The height can be made lower.

Further, since the cap 50 is formed so as to surround the entire circumference of the mirror mounting boss portion 2, the cap 50 is formed so as to surround the entire circumference of the mirror mounting boss portion 2.
Even if it is removed from 0, it will not fall off from the mirror mounting boss portion 2 or the mirror mounting shaft 8.

In the present invention, as described above, the reservoir is extended to the periphery of the mirror mounting boss, so a large amount of liquid can be obtained and the volume is large, so that the height of the reservoir can be reduced accordingly.

In addition, since the cap can be fixed to a part of the reservoir in the same way as when attaching a mirror, the number of parts and work steps are reduced, and the cap can be easily attached to the reservoir. When removing the cap from the reservoir during refueling, etc., just loosen the nut, and there is no need to remove the mirror and the cap suppressing and holding member from the mask cylinder body.

Furthermore, since one side of the cap is formed to extend around the mirror mounting boss, this extended part serves as a positioner, making it difficult to assemble the cap so that the characters displayed on the cap surface are erroneously turned upside down. It will go away.

In addition, by providing a positioning means such as a protrusion or a locking piece on the holding plate of the cap pressing and holding member, the cap can always be pressed and held in the same position, which is extremely advantageous, such as ensuring good sealing with the inside of the reservoir. It is possible to achieve the following effects.

[Brief Description of the Drawings] Fig. 1 is a plan view showing one embodiment of the present invention, and Fig. 2 is a plan view showing an embodiment of the present invention.
Fig. 3 is a perspective view showing another embodiment of the cap suppressing and holding member, Fig. 4 is a plan view showing the main part of an example of fixing the attachment of the other side of the cap and the reservoir, FIG. 5 is a plan view showing another embodiment of the present invention. 1 is a mass cylinder body, 2 is a mirror mounting boss part, 3.
30 is the reservoir, 3a, 3b, 31 is the seventh extension part,
5, 50 are caps, 5a, 5b, 51 are extensions thereof,
8 is a mirror mounting shaft, 10 is a nut, and 11 is a cap suppressing and holding member.

Claims (3)

[Scope of utility model registration request] (1) The reservoir provided on the mask cylinder body and its cap are extended to the periphery of the mirror mounting boss portion integrally formed on the mask cylinder body, and the upper surface of the mirror mounting boss is attached to the mirror mounting shaft screwed onto the mirror mounting boss portion. A cap suppressing and holding member with elasticity that spans the upper surface of the cap is loosely inserted, and the cap is attached to the reservoir via the cap pressing and holding member using the mirror mounting shaft fixing member, and the mirror mounting shaft is fixed to the mirror mounting boss portion. A vehicle mask cylinder characterized by: (2) The mask cylinder for a vehicle according to claim 1, wherein the reservoir and the cap extend approximately halfway around the mirror mounting boss portion. (3) The master cylinder for a vehicle according to claim 1, wherein the reservoir and its cap surround the entire periphery of the mirror mounting boss portion.