JPS6313969Y2 - - Google Patents

Description

[Detailed Description of the Invention] The disclosed technology belongs to the technical field of a brake cable adjustment mechanism for a parking brake lever of an automobile.

Therefore, in this invention, a brake cable is routed along a cable guide provided on the side of a parking brake lever that is attached to a sector provided in the driver's seat of a car, and the brake cable is threaded onto a connecting bolt at the end of the cable guide. This invention relates to an adjustment nut holding tool in which a matching adjustment nut is pressed into contact with the end of the cable guide to prevent rotation by the lock nut, and in particular, after the adjustment nut is screwed, the set plate is inserted through the bolt through the hole. At the same time, when the lock nut is screwed into the adjustment nut, a detent part, which is interposed between the adjustment nut and the lock nut and extends integrally with the set plate, comes into contact with the parking brake lever, thereby locking the adjustment nut, bolt, and cable together. This relates to a parking brake lever adjustment nut holder that prevents rotation.

As is well known, automobiles are equipped with a parking brake device as one of the safety devices, and the operating section thereof is provided in the driver's seat, and there are manual types, stick type types, and side lever type types.

Among them, the side lever type is widely used because it hardly changes the driver's posture, maintains visibility, and has good operability.

As shown in FIG. 1, the side lever type brake lever is operated by inserting a brake lever 4 having a grip 3 through a slit 2 in a console box 1 provided on the floor tunnel.

Then, during periodic inspections and the like, the integral connection bolt of the cable end disposed along the cable guide attached to the brake lever is rotated back and forth using an adjustment nut to properly adjust its tension.

Further, after the adjustment, a lock nut is used to prevent loosening, but when adjusting the cable described above, it is unavoidable to loosen the lock nut and rotate the adjustment nut, which requires both hands. However, it is impossible to work through the slit 2 of the console box 1, and therefore the console box 1 has to be removed for work.

A design without the console box could be considered, but it would be unsightly, dangerous for the driver, and would damage the cover cloth.

The purpose of this invention was to take into consideration the problems with the adjustment nut attached to the side lever type parking brake lever based on the prior art described above, by inserting a presser interposed between the adjustment nut and the lock nut into the bolt, and further abutting the brake lever. By doing so, you can freely adjust the cable tension using the adjustment nut.
To provide an excellent parking brake lever adjustment nut holding tool capable of preventing rotation of the adjustment nut and co-rotation of the cable when tightening the lock nut.

The structure of this invention in accordance with the above-mentioned purpose is to remove the locking nut by passing it through a slit in the console box, etc., using a socket trench, etc., also removing the presser, and rotating the adjustment nut to adjust the cable tension to a specified level. After adjustment, make the hole in the set plate of the presser tool, insert the bolt, and then tighten the lock nut. When the side extension stopper integrated with the set plate of the presser tool comes into contact with the side surface of the brake lever, adjustment is made. The gist of this is to prevent the nut from rotating and to prevent it from loosening.

Next, one embodiment of this invention will be described below based on the drawings from FIG. 2 onwards. Furthermore, the first
Components having the same features as those in the drawings will be described using the same reference numerals.

A parking brake cable 4, which is inserted into a slit in a console box 1 provided in the floor tunnel of the driver's seat (not shown) and has a grip 3 at its tip, is routed via its pin 6 to a sector 5 fixed to the floor tunnel. A parking brake cable 8 connected to a brake of a wheel (not shown) is abutted and guided on a roughly J-shaped cable guide 7 which is movably supported and welded and fixed to the first side of the brake lever 4. A locking bracket 9 is appropriately fixed to the guide 7 and the brake lever 4, and the cable end is connected to an adjustment bolt 11 via a grip 10 as appropriate.

The above structure is the same as the conventional structure.

A notch 12 is formed in the upper surface 4' of the brake lever 4 from the upper surface 7' of the cable guide 7, and the adjustment nut 13 is screwed onto the bolt 11 through the notch 12, so that the upper surface of the cable guide 7 7' to apply a predetermined tension to the cable 8.

Reference numeral 14 denotes a presser which constitutes the gist of this invention, and is a stamped and molded product of a metal plate such as aluminum, with a hole 15 through which the bolt 11 can be inserted, and a ring-shaped presser which can be set in the notch 12. It consists of a set plate 16 and anti-rotation parts 17, 17 which are integrally provided with the set plate 16 and extend on both sides and come into contact with the side surfaces of the brake lever 4.

The holding tool 14 is inserted into the hole 15 onto the bolt 11, and the rotation prevention parts 17, 17 are brought into contact with the side surface of the brake lever 4, and are brought into surface contact with the adjustment nut 13, and the lock nut 18 is screwed onto the adjustment nut 13. ing.

In the above configuration, the brake lever 4 is rotated around the sector 5 in the state shown in the figure, and braking and release are repeated in a predetermined manner.

Therefore, the brake cable 8 becomes loose over time, and its tension must be adjusted periodically or irregularly.

To make this adjustment, insert the socket trench through the slit 2 of the console box 1, easily remove the lock nut 18 through the notch 12, remove the presser 14 using a screwdriver, etc. through the notch 12, and insert the socket trench again to make the adjustment. Rotate the nut 13 to move the bolt 11 forward or backward, and set the tension of the cable 8 to the set tension.

During this process, the cable 8 is prevented from rotating by the detent block 9.

When the tension adjustment is completed, make a hole in the presser 14 through the notch 12, insert it into the bolt 11, bring the detents 17, 17 into contact with the brake lever 4, and place it on the adjustment nut 13. Then, screw the lock nut 18 onto the bolt 11 and tighten it with a socket trench.

Then, in the process of applying a washer action to the presser holder 14, the lock nut 18 attempts to apply a rotational moment as the surface pressure against the presser 14 increases, but the rotation stopper 17 comes into contact with the side surface of the brake lever 4. The rotation is restrained, and therefore, the adjusting nut 13 also does not rotate, maintains the adjusted position, and ends the locking action.

Also, when repeatedly braking and releasing,
Due to the action of the detents 17, 17, the presser 14
Since the lock nut 18 and the adjusting nut 13 do not rotate, the cable does not become loose.

The embodiments shown in FIGS. 6, 7, and 8 are other embodiments, in which the U-shaped presser 14' when viewed from the side is a detent that is integrally reversed from one detent part 17 of the presser 14 of the above-mentioned embodiment. hole 1 of the same size.
A notch 15' is formed in the set plate 16' having a set plate 16' having a hole 15', and a notch 15' is formed in the set plate 16' to communicate with the hole 15. They are inserted and engaged through the elasticity of the locking nut 16' to form an assembly, and the presser 14' can be easily set and reset by setting and resetting the lock nut 18'.

Of course, in this embodiment as well, the set plate 16
There is no difference in the anti-rotation action and effect on the adjusting nut 13.

It is needless to say that the embodiment of this invention is not limited to the above-mentioned embodiments, and various embodiments may be adopted, such as, for example, the presser is made into a groove-engaging assembly on the adjusting nut side.

As mentioned above, according to this invention, when the adjustment nut is used to adjust the tension of the brake cable on the side-lever type parking brake lever, the holding tool is not connected to the adjustment nut during the final tightening process. Since it is interposed between the lock nuts and its anti-rotation part abuts and engages with the side surface of the brake lever, the holding tool does not rotate and therefore the adjusting nut also does not rotate, which prevents the adjusted cable tension from being rotated. It has an excellent effect that does not change your condition.

Also, after completing the first adjustment, brake,
Even when the release is repeated, since the presser does not rotate, the lock nut and adjustment nut also do not rotate, and an excellent effect is achieved in that no loosening occurs.

Furthermore, if the brake lever is set in the console box, the lock nut, presser, and adjustment nut can be operated with one hand using a socket trench or the like through the slit in the console box, so there is no need to remove the console box. It also has the effect of allowing you to work more smoothly and accurately.

Since the presser has a simple structure in which a set plate with bolt insertion holes is integrally formed with a detent part that abuts and engages with the brake lever, it is easy to manufacture and can be manufactured at low cost. It has the advantage of being easy to operate.

In addition, since it can be made more secure by engaging the nut with a groove, it is possible to manage the number of parts and prevent parts from being lost during adjustment work.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the position of the parking brake lever, Fig. 2 is an overall schematic explanatory diagram of one embodiment of this invention, Fig. 3 is an explanatory cross-sectional diagram of Figs. 2 A to D, and Fig. 4 is a perspective view of the presser. 5 is a plan view as seen from FIG. 3E, FIG. 6 is a perspective view of another embodiment of the presser, FIG. 7 is a side view of a lock nut for the presser, and FIG. FIG. 3 is an explanatory diagram of the attachment of the attachment tool. 4... Parking brake lever, 7... Cable guide, 8... Cable, 11... Bolt,
13...adjusting nut, 14,14'...presser,
15... hole, 16, 16'... set plate,
17... Detent portion.

Claims (1)

[Scope of utility model registration request] An adjustment nut holder that engages an adjustment nut threaded onto a bolt at the upper end of a cable routed along the cable guide of the parking brake lever and also engages the parking lever, the adjustment nut holder having a hole through which the bolt can be inserted, and 1. A parking brake lever adjustment nut holder, characterized in that a set plate interposed between the adjustment nut and the lock nut extends integrally with a rotation preventing portion that abuts the parking brake.