JPH048004Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a strut type suspension used in passenger cars and the like.

(Prior art) As a conventional strut type suspension, for example, Nitsusan Service Bulletin No. 445 (Showa
The one described on page 107 of Nissan Motor Co., Ltd., published in October 1956 is known.

This conventional suspension S', as shown in FIG. The caliper 5 was connected within the wheel house 7 via a hose bracket 6 and the intermediate clamp 3.

However, in such a conventional suspension S', since the brake hose 1 is piped inside the wheel house 7, there are the following problems.

The wheel house 7 does not have enough space to ensure the size of the engine room, etc., and the wheel house 7 of the front suspension of a front engine/front drive vehicle (hereinafter abbreviated as FF vehicle) is especially suitable for the drive shaft, etc. It is very difficult to arrange the piping of the brake hose 1 within the wheel house 7 due to its narrowness.

(Purpose of the invention) The present invention was made to solve the above-mentioned problems, and its purpose is to:
To provide a strut type suspension that does not require special piping layout of the brake hose and can reduce the influence from the road surface while ensuring followability of the brake hose to the expansion and contraction of a coil spring.

(Structure of the invention) That is, in order to achieve the above-mentioned object, the present invention includes a piston rod attached to the vehicle body side and provided with an upper spring seat, a strut attached to the wheel side and provided with a lower spring seat, In a strut type suspension having a coil spring interposed between the upper spring seat and the lower spring seat, a vehicle body side hose portion of a brake hose is connected to the upper spring seat, and the coil spring is interposed between the upper spring seat and the lower spring seat. The wheel-side hose part of the brake hose is connected to the seat, and the vehicle body-side hose part and the wheel-side hose part are connected by a strut insertion hose part that passes through the inside of the coil spring and has an allowance for hose length. The structure is characterized by the following.

(Effect of the invention) Therefore, in the strut type suspension of the present invention, as described above, the vehicle body side hose section connected to the upper spring seat and the wheel side hose section connected to the lower spring seat. Since the brake hose piping is connected to the strut insertion hose part that passes through the inside of the coil spring, the brake hose piping layout can be done regardless of the space in the wheel house, especially the brake hose piping layout. Further, the influence of flying stones from the road surface can be suppressed to a minimum, and the degree of freedom in layout of the wheel house and other members housed in the wheel house is increased.

Furthermore, since the strut insertion hose portion has a sufficient length, the brake hose can be easily and stably followed even when the coil spring expands and contracts.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
In describing this embodiment, a strut type suspension of an automobile will be taken as an example.

First, the structure of the first embodiment shown in FIGS. 2 to 4 will be explained.

Reference numeral 8 denotes a piston rod, which is attached to the vehicle body 4 side via a mount insulator (not shown).The piston rod 8 is installed by connecting the cap member 9 containing the mount insulator to the vehicle body 4. This is done by fixing the .
Incidentally, a bound bumper 10 and a dust cover 11 are provided on the outer periphery of the piston rod 8.

Reference numeral 12 denotes an upper spring seat, which is provided on the piston rod 8 side via a seat rubber 13, and this upper spring seat 12 is provided under pressure by a coil spring 14, which will be described later.

A strut 2 is attached to a knuckle arm (not shown) on the wheel side, and the inside of the strut 2 has a shock absorber structure.

A lower spring seat 15 is fixed to the circumferential surface of the strut 2 by welding or the like.

A coil spring 14 is interposed between the upper spring seat 12 and the lower spring seat 15, and the mounting position of the coil spring 14 is fixed by both spring seats 12 and 15.

Reference numeral 16 denotes a brake rotor, which is fixed to a front hub or the like on the wheel side. This brake rotor 16 is provided with a brake caliper 5 that is operated by hydraulic pressure or the like.

A brake hose 1 connects a brake pressure generation source and the brake caliper 5 and applies a predetermined fluid pressure to the brake caliper 5 during brake operation.
is piped from the upper spring seat 12 to the lower spring seat 15 by passing through the inside of the coil spring 14.

In addition, connect the brake hose 1 to both spring seats 1.
2 and 15, female hose connectors 17 and 18 are provided at both ends of the strut insertion hose portion 1a of the brake hose 1, and the female hose connectors 17 and 18 are connected to both spring seats 1 in advance.
2, 15, and then connect the hose part 1b on the vehicle body side.
Insert the male hose connectors 19 and 20 provided at the end of the wheel-side hose portion 1c, and connect the lock plate 2.
It is attached by locking at 1 and 22.

In addition, the strut insertion hose portion 1a of the brake hose 1 is gently bent to have an allowance in length, so that even if the coil spring 14 expands and contracts, it can follow the expansion and contraction easily and stably.

A hose bracket 23 is fixed to the outer peripheral surface of the strut 2, and the hose bracket 23 regulates the piping position of the wheel side hose portion 1c.

Reference numeral 7 denotes a wheel house 7, which is formed by the vehicle body 4, and whose shape is determined by taking into consideration the operation and accommodation of the strut type suspension S of the embodiment, wheels, etc. be.

Next, the effect will be explained.

First, when piping the brake hose 1, since the strut insertion hose part 1a is provided in advance, all that is required is to insert the male hose connectors 19 and 20 between the vehicle body side hose part 1b and the wheel side hose part 1c. Can be piped.

Furthermore, even if the coil spring 14 is in an extended state (as shown in FIG. 2) or in a shortened state (as shown in FIG. 4) after the brake hose 1 is installed, the flexibility of the brake hose 1 and the length of the hose can be adjusted. By allowing some leeway, it is possible to respond to tracking, and it does not affect the strut performance.

Therefore, in the strut type suspension S of the first embodiment, since the brake hose 1 is piped through the inside of the coil spring 14, the wheel house 7
The brake hose 1 can be piped independently of the brake hose 1, there is no need to perform a particular piping layout for the brake hose 1, and the degree of freedom in layout of the wheel house 7 and other members housed within the wheel house 7 is increased. .

In addition, in the first embodiment, the strut insertion hose portion 1a is fixed in advance to both the spring seats 12 and 15, and the male and female hose connectors 1a are fixed in advance.
7, 18, 19, and 20, piping workability is also good.

Next, a second embodiment shown in FIG. 5 will be described.

In this embodiment, the coil spring 14 is covered with an elastic body 24 made of extremely flexible urethane rubber or the like, and can prevent the brake hose 1 from being caught in the coil spring 14.

For other configurations and other effects, see Part 1.
Since this is the same as the embodiment, the explanation will be omitted.

Next, a third embodiment shown in FIG. 6 will be described.

In this embodiment, the coil spring 14 is covered with an elastic body 25, and the strut insertion hose portion 1a of the brake hose 1 is also covered with the elastic body 25.
This is an example of embedding in a spiral shape in 4.

Therefore, the brake hose 1 can be prevented from getting caught in the coil spring 14, and the bound bumper 10 provided on the outer periphery of the piston rod 8 can be prevented.
It is also possible to prevent contact interference with the dust cover 11 and the like.

For other configurations and other effects, see Part 1.
Since this is the same as the embodiment, the explanation will be omitted.

Next, a fourth embodiment shown in FIGS. 7 and 8 will be described.

In this embodiment, a hose attachment link 26 is inserted into the coil spring 14, and a strut insertion hose portion 1a of the brake hose 1 is inserted into the hose attachment link 26 in a spiral manner.
6 regulates the piping position of the strut insertion hose portion 1a, and as in the third embodiment described above, contact interference with the coil spring 14, hound bumper 10, etc. can be prevented.

For other configurations and other effects, see Part 1.
Since this is the same as the embodiment, the explanation will be omitted.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention may be modified without departing from the gist of the present invention. included.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a conventional strut type suspension, FIG. 2 is a front view showing a strut type suspension according to the first embodiment of the present invention, and FIG. 3 is an enlarged view of part A in FIG. Figure 4 is a front view showing the coil spring in a shortened state in the suspension of the first embodiment, Figure 5 is a front view of the suspension of the second embodiment, and Figure 6 is a front view of the suspension of the third embodiment. 7 is a front view showing the suspension of the fourth embodiment, and FIG. 8 is a sectional view taken along the line of FIG. 7. 1... Brake hose, 2... Strut, 4
...Vehicle body, 8...Piston rod, 12...Upper spring seat, 14...Coil spring, 15...Lower spring seat.

Claims (1)

[Claims for Utility Model Registration] A piston rod attached to the vehicle body and provided with an upper spring seat, a strut attached to the wheel side and provided with a lower spring seat, and the upper spring seat and the lower spring seat. In a strut type suspension having a coil spring interposed between the strut type suspension, a vehicle body side hose portion of a brake hose is connected to the upper spring seat, and a wheel side hose portion of the brake hose is connected to the lower spring seat. A strut type suspension characterized in that the vehicle body side hose part and the wheel side hose part are connected by a strut insertion hose part which is passed through the inside of a coil spring and has a length of the hose.