JPH028856Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The disclosed technology belongs to the technical field of a stick-type parking brake lever structure provided in the driver's seat of a vehicle such as an automobile.

<Summary of the gist> This invention has a plunger attached to the frame, which has a pole-engaging ratchet (a ratchet that is engaged by the pole) on the upper part, which is provided in the driver's seat so that it can move forward and backward through the handle. It is inserted into a fixed guide sleeve through a provided guide bracket, and its tip is connected to the parking brake cable so that the brake can be applied by pulling out the handle and releasing the brake by pulling it back. This invention relates to a stick-type parking brake lever structure, in particular, a pole is formed in the shape, a pin is integrally installed at the lower part of the pole, and an inverted concave long groove is bored in the longitudinally lower part of the plunger. Also, a release lever is provided with engagement latches for the pins of the plurality of poles in the axial direction thereof at a pitch larger than the pitch of the upper pawl engagement latches, and is slidably inserted into the handle side of the plunger. is connected by a predetermined means to one end of a release rod that slides in the long groove by carving a pin-to-pin engagement ratchet at the lower part of the plunger with the same pitch as the pin-to-pin engagement ratchet at the bottom of the plunger, and at least one of the guide sleeves is connected to the release rod by a predetermined means. A pole supported via a pin is freely engaged with and releasable from a pair of pawl latches on the upper part of the plunger, and a lower pin of the pole is freely engaged with and releasable from a plurality of latches of the plunger and the release rod. This is an invention related to the stick-type parking brake lever structure.

<Prior Art> As is well known, automobiles are equipped with a parking brake device to maintain the stopped state of the vehicle when the vehicle is parked or stopped, and there are usually two types of parking brake levers: a side lever type and a stick plunger type. The latter is widely installed due to its ease of operation, as it is located close to the handle column.

As shown in FIG. 1, the stick plunger type parking brake lever 1 has a plunger 3 having a stick type handle 2 at the rear end.
is guided by a guide sleeve 6 of a guide bracket 5 provided on the frame 4, and a ratchet 8 formed at the upper part of the plunger 3 is engaged with and released from a pawl 7, and the tip thereof is connected to a lever pivotally supported on the frame 4. 9 via a pin, the amount of pull of the plunger 3 is replaced by the rotational moment of the lever 9, and the base of the bent parking brake cable 11 is hooked to the short lever 10 to increase the force, thereby increasing the force on the rear wheel (not shown). It is connected to the brake system.

<Problem to be solved by the invention> However, in this type of stick-type parking brake lever, as shown by arrow A, the pawl 7 of the guide bracket 5 is locked to the ratchet 8 of the plunger 3 by rotating the handle 2. released to
Since the parking brake is released when parking or stopping by returning the handle 2, the handle 2 is extended downward and the driver's knee or the like does not touch the handle 2 after operating the parking brake. There was a structural defect that the lower part of the unit easily came into contact with the unit.

In addition, the handle 2 is provided with space for assembling the parking brake lever so that the handle 2 does not interfere with other parts, such as a console box.
Since the rotation range of the
There was a problem with low flexibility in assembly space.

The purpose of this invention is to solve the problem of the stick-type parking brake lever based on the above-mentioned conventional technology. The present invention provides an excellent stick-type parking brake lever structure that benefits safety technology application fields in the automobile industry by allowing the parking brake to be released at the same time, preventing accidental brake release, and improving the effectiveness of the surrounding assembly space. This is what we intend to provide.

<Means/effects for solving the problem> In order to solve the above-mentioned problems, the structure of this invention, which is based on the above-mentioned utility model registration claims, has a handle at the rear end and a guide sleeve. A plunger is inserted along the parking brake cable so that it can move forward and backward, and has a pole engagement ratchet on the top that engages with the pole only when the handle is pulled back.The plunger is connected to the parking brake cable so that it can be pulled back, and when the handle is pulled out, the parking brake is actuated. In the stick-type parking brake lever structure in which the parking brake is released by pulling back, the pole is formed into a shape, and a locking pin is provided at the lower part, so that the lever engages with the pawl engagement ratchet by its own weight. The plunger is supported by a pin on the guide sleeve, and the plunger is inserted through the pole, and a locking pin engagement ratchet having a larger pitch than the upper pole engagement ratchet is provided at the lower part of the plunger. A long groove is bored in the longitudinal direction, and the long groove has a plurality of locking pin engaging latches that engage with the locking pin in the axial direction and have the same pitch as the locking pin engaging latches at the lower part of the plunger. A release rod formed at the bottom is slidably embedded, and a release lever fitted on the handle side of the plunger is connected to the end of the release rod on the handle side, so that when the release lever is operated, the release lever is inserted into the plunger. The parking brake lever has a stick-type parking brake lever structure in which a locking pin of at least one pawl pivotally supported on a guide sleeve is capable of engaging and separating from a pair of locking pin engagement ratchets of a plunger and a release rod.

<Function> Thus, the plunger having a handle at its rear end is inserted into the guide sleeve supported by the frame so that it can move forward and backward while being restricted in the axial direction, and the handle can be pulled and operated when braking when parking or stopping. As a result, the upper part of at least one shaped pawl pivotally supported on the upper part of the guide sleeve is urged by gravity to lock against the pair of pawl latches carved in the upper part of the plunger, and the pawl is The locking pin provided across the lower part of the plunger simultaneously locks with a pair of locking pin engagement latches carved in the lower part of the plunger with a pitch larger than the pitch of the upper pair of pole engagement latches. The brake is applied via the parking brake cable connected to the base of the plunger, and when the brake is released, the release lever inserted into the groove at the bottom of the plunger is pulled toward the handle side. A release rod that is slidable in a bored long groove and has a locking pin engaging ratchet at its lower part that is in the same phase as the locking pin engaging ratchet at the lower part of the plunger and has an equal pitch to the ratchet. slides the lower part of the plunger and the locking pin engaging ratchet of the release rod into the closed state, and as a result, the lower pin of the pawl rotates downward and the upper part of the pawl also rotates upward, causing the pawl to close. A technical measure is taken to release the locking state of each ratchet engaging the pawl and the locking pin at both the upper and lower portions of the parking brake, and to release the parking brake when the handle is not rotated.

<Example> Next, an example of this invention will be described below based on the drawings from FIG. 2 onwards.

In the embodiment shown in Figs. 2 to 7b, 1' is a stick-type parking brake lever that is the central point of this invention, and is installed in the driver's seat of a car, and is fixed to the frame 4. A guide sleeve 6' and a sleeve bracket 12 integrally formed with the guide sleeve 6' are fixed to the pair of guide brackets 5', 5' in the lower longitudinal direction thereof,
As shown in FIG. 5, at a predetermined position above the sleeve bracket 12, the bases of a pair of front view type poles 7', 7' are spaced apart from each other in the front and rear direction. The head of one of the poles 7' is pivotably supported by pins 13, 13, and the head of one of the poles 7' is positioned at a predetermined pitch in the upper setting position of the plunger 3', which is inserted so as to be movable back and forth along the guide sleeve 6'. It can be freely engaged and separated from a pawl engagement ratchet 8 that is carved therein.

Further, as shown in FIG. 3, an inverted concave long groove 14 of a predetermined length is bored on the lower side in the longitudinal direction of the plunger 3' from the middle to the rear part thereof, and in the axial direction of the lower part of the plunger 3'. A predetermined number of locking pin engagement latches 15 are carved for the locking pin 20 at the bottom of the pole 7', which are formed at twice the pitch of the pair of pawl latches 8 at the top;
Further, the tip of the plunger 3' is pin-locked to a lever 9 that is pivotally supported on the frame 4, and a short lever 10 at the top of the lever 9 is connected to a parking brake cable 11 connected to a rear wheel brake device (not shown). The base of is locked.

A release lever 16 is fitted on the rear side of the plunger 3' so that its base can slide freely along the plunger 3'.
The lower part of the plunger 3' is slidable in the long groove 14 bored in the lower part of the plunger 3', and has a pair of locking pins at the same pitch as the locking pin engagement latches 15 at the lower part of the plunger 3'. The rear part of the release rod 18, which has a pin engagement ratchet 17 carved in its lower part, is fastened via a bolt 19, and
A handle 2' is fixed to the rear end of the plunger 3' by a predetermined means.

Incidentally, when the parking brake lever 1' is operated, the release lever 16 moves together with the handle 2' while maintaining a set interval, and also moves between the locking pin engaging ratchet 15 at the bottom of the plunger 3' and the release lever 16. As shown in Fig. 4, the locking pin engagement ratchet 17 at the bottom of the release rod 18, which is fastened to The plunger 3' is locked by its own weight to the upper pawl engaging ratchet 8, and the locking pin 20 at the lower part of the pole 7' is locked to each of the pair pin engaging latches 15, 17 in the same phase. It's becoming like that.

In the above configuration, when applying the parking brake when parking or stopping from the parking brake non-operating state, hold the handle 2' and move the arrow B in FIG.
When pulled in the direction of , the plunger 3' is pulled along the guide sleeve 6', and with a predetermined stroke, the plunger 3' is pivotally supported by the sleeve bracket 12 integrally formed with the guide sleeve 6' via pins 13, 13. The head of one of the pair of poles 7', 7' is hooked by its own weight to a pawl engagement ratchet 8 carved into the upper part of the plunger 3', and the locking pin 20 at the lower part of the pole 7' a pair of locking pin engagement ratchets 15 carved into the lower part of the plunger 3', and a release rod 18 inserted into the long groove 14 of the lower part of the plunger 3' in phase with the pair of locking pin engagement ratchets 15. The parking brake cable 11 is also pulled by a predetermined stroke by the rotation of the lever 9, which is engaged with the lower counter-locking pin engaging ratchet 17 and which is fixed by the pin at the tip of the plunger 3', and the parking brake cable 11 is pulled by a predetermined stroke through the rear wheel braking device (not shown). Apply the parking brake and maintain the braking state.

When releasing the brake, when the release lever 16 fitted in a predetermined position behind the plunger 3' is pulled toward the handle 2' at the rear end of the plunger 3', a release lever 16 is engaged with the lower part of the release lever 16. The released release rod 18 slides in the long groove 14 toward the handle 2', and as a result, the locking pin engagement latch 15 at the bottom of the plunger 3', which had been in the same phase until now, and the locking pin at the bottom of the release rod 18 are now locked. The pin engagement latches 17 are displaced from each other, and as shown in Figures 6, 7a, and 7b, the ratchet structure is in the closed state, and as a result, the locking pins are latched onto the respective pair of locking pin engagement latches 15, 17. The locking pin 20 at the lower part of the pawl 7', which had been held, is released from each pair of locking pin engagement latches 15 and 17 by rotating the pawl 7' in the opposite direction against the weight of the head of the pawl 7'. The head of the pawl 7' is also released from the anti-pole latch 8 on the upper part of the plunger 3', and when the handle 2' is pushed back and operated backward from this state, the parking brake cable 11 is pulled back and the brake is released, and the above-mentioned The release lever 16 is returned to its initial state.

In this way, the handle 2' can be rotated simply by pulling the release lever 16.
The brake can be released.

The pair of pawls 7' and 7' are arranged so that the pair of pawls and the locking pin engagement ratchet are engaged alternately, and the tooth profile of each pair of pawls and the locking pin engagement ratchet is formed to be large. This makes manufacturing easier and ensures that the pair of poles and the locking pin engaging ratchet are locked.

Another embodiment shown in FIG. 8 is a stick-type parking brake lever 1'' in which one pawl 7' is pivotally supported on the sleeve bracket 12 via a pin 13. Similar to the above-described embodiment, the disengagement from the pair of pawls and the pin engagement ratchet is ensured when the brake is released.

It goes without saying that the embodiment of this invention is not limited to the above-mentioned embodiments. For example, it is possible to apply only gravity bias so that the head of the pole is always biased toward the pole engagement ratchet at the top of the plunger. First, there are various methods such as attaching a spring to the pole, or using a spring to bias the pin-engaging ratchet at the bottom of the release rod and the locking pin-engaging ratchet at the bottom of the plunger so that they are always open in the same phase. Aspects can be adopted.

Furthermore, it goes without saying that the shape of the sleeve bracket is not limited to a circular shape.

<Effects of the invention> As described above, according to this invention, the plunger has a handle at the rear end and a pawl engagement ratchet on the upper part that is inserted so as to be freely advanced and retracted along the guide sleeve, and can be freely pulled back to the parking brake cable. In the stick-type parking brake lever structure that is linked to the
A locking pin is provided at the lower part of the plunger, a long groove is bored in the lower part of the plunger in the longitudinal direction, and a locking pin engagement ratchet for a plurality of the pins is formed in the axial direction of the lower part, and the locking pin is fitted onto the handle side of the plunger. The inserted release lever forms a pair of locking pin engagement latches at the lower part of the plunger with the same pitch as the pair of locking pins of the plunger, and is connected to one end of the release rod that slides in the long groove, and is connected to one end of the release rod that slides in the long groove. The locking pin at the bottom of at least one pole pivotally supported by the plurality of counter-locking pin engagement latches can be freely engaged with and retracted from the locking pin, so that the parking brake can be released toward the handlebar after parking or stopping. An excellent effect can be achieved in that the operation can be performed smoothly and easily by simply pulling the lever without rotating the handle.

Furthermore, as mentioned above, since the parking brake can be released without the steering wheel turning, the driver's knees, etc. do not touch the steering wheel when parking or stopping, and the driver's steering operation during parking is not obstructed. This has the advantage of improving handle operability.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram of a stick-type parking brake lever structure based on the prior art, Figure 2 and the following are explanatory diagrams of embodiments of this invention;
A schematic enlarged side view of the embodiment, FIG. 3 is the − of FIG. 2.
4 is a partial sectional view of FIG. 2, FIG. 5 is a perspective view of the pawl, FIG. 6 is a side view of the release lever operation, and FIGS. 7a and 7b are schematic views of the pawl and ratchet in a disengaged state. , FIG. 8 is a partial sectional side view corresponding to FIG. 2 of another embodiment. 2'... Handle, 6', 12... Guide sleeve, 7'... Pole, 8... Pole engagement ratchet, 3', 3''... Plunger, 11... Parking brake cable, 1', 1 ″... Stick-type parking brake lever, 14... Long groove, 15
... Pair locking pin engagement ratchet, 16 ... Release lever, 17 ... Pair locking pin engagement ratchet, 18
... Release rod, 20 ... Locking pin at the bottom of the pole.

Claims (1)

[Scope of utility model registration request] A plunger, which has a handle at its rear end, is inserted along the guide sleeve so that it can move forward and backward, and has a pole engagement ratchet at the top that engages with the pole only when the handle is pulled back, is connected to the parking brake cable so that it can be pulled back. , the parking brake is activated by pulling out the above handle,
In the stick-type parking brake lever structure in which the parking brake is released by pulling back, the above-mentioned pole is formed into a shape, a locking pin is provided at the lower part, and the above-mentioned pole is configured to engage with the above-mentioned pawl engagement ratchet by its own weight. The plunger is supported by a pin on the guide sleeve, and is provided through the pole, and a pair-locking pin engagement ratchet having a larger pitch than the upper pawl-engagement ratchet is provided at the lower part of the plunger, and the lower part of the plunger is A long groove is bored in the hand direction, and a plurality of pair-locking pin-engaging latches that engage with the locking pin in the axial direction and have the same pitch as the pair-locking pin-engaging latches at the bottom of the plunger are provided at the bottom of the long groove. A release rod formed in the plunger is slidably embedded, and a release lever fitted on the handle side of the plunger is connected to the end of the release rod on the handle side, so that operation of the release lever releases the guide. A stick-type parking brake lever structure characterized in that a locking pin of at least one pole pivotally supported on a sleeve can be freely engaged and separated from a pair of locking pin engagement ratchets of a plunger and a release rod.