JP4014157B2 - Hand brake lever device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hand brake lever device, and more particularly to a hand brake lever device that is characterized by the configuration of a grip molded product attached to a hand brake lever body.
[0002]
[Background]
Generally, a hand brake lever device has a ratchet plate fixed to the vehicle body side, and a hand brake lever main body that is rotatably attached to the ratchet plate, and a grip portion of the hand brake lever main body is provided. A grip can be attached (see Patent Document 1).
[0003]
In addition, depending on the product, a grip molded product that integrally forms a grip part that covers the grip part of the hand brake lever body and a cover part that extends from the grip part to the vicinity of the center of rotation of the hand brake lever body. Is also known.
[0004]
[Patent Document 1]
JP-A-6-239 211
[Problems to be solved by the invention]
In such a grip molded product in which the grip part and the cover part are formed integrally, the cover part spreads in a skirt shape, so that it deforms due to its own weight or hangs down due to aging, and both sides of the cover part There is a problem that the part bulges outward and interferes with surrounding parts or deteriorates in appearance when mounted on the vehicle.
[0006]
An object of the present invention is to provide a hand brake lever device capable of preventing both sides from swelling outward due to aging of a cover portion covering from the grip portion to the vicinity of the rotation center of the hand brake lever body. is there.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a hand brake lever device according to the present invention includes a ratchet plate fixed to the vehicle body side, a hand brake lever main body rotatably attached to the ratchet plate, and the hand brake lever main body. A grip molded product to be attached,
The grip molded product has a grip portion that covers a grip portion of the hand brake lever main body, and a cover portion that spreads from the grip portion to the vicinity of the rotation center of the hand brake lever main body in a skirt shape,
The both sides near the end are connected at predetermined intervals to the inner surface of the back at least near the end opposite to the grip portion of the cover to prevent both sides near the end from bulging outward. A plurality of ribs are provided so as to be inclined in a die cutting direction at the time of injection molding of the cover portion .
[0008]
According to the present invention, the rib provided on the inner surface near the end opposite to the grip portion of the cover portion prevents deformation due to its own weight due to secular change or sagging, and both side portions near the end are It is possible to reliably prevent outward swelling, and to prevent interference with surrounding parts and deterioration of appearance.
[0009]
In addition, since the rib is provided at least on the back part near the end part, both sides near the end part of the cover part bulge outward by preventing deformation from hanging due to the weight of the back part of the skirt part that easily deforms. Can be surely prevented.
[0010]
[0011]
Moreover, the rib is because it is more provided connecting both sides of the vicinity of the end portion at a predetermined interval, it is possible to both sides of the vicinity of the end portion of the cover portion is reliably prevent bulging of the outward.
[0012]
[0013]
Further, since the plurality of ribs are formed to be inclined in the die-cutting direction at the time of injection molding, it is easy to perform die-cutting of the grip molded product after injection molding despite the plurality of ribs being formed. It can be carried out.
[0014]
[0015]
[0016]
[0017]
[0018]
[0019]
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0021]
1-6 is a figure which shows the handbrake lever apparatus which concerns on one embodiment of this invention.
[0022]
FIG. 1 is an overall side view showing the hand brake lever device according to the present embodiment in a partially broken view. The hand brake lever device 10 includes a ratchet plate 12, a hand brake lever body 14, a ratchet 16, A push rod 18, an operation knob 20, and a grip molded product 22 are provided.
[0023]
The ratchet plate 12 is configured such that a base end portion 24 is fixed to a floor of a vehicle body (not shown), and sector-shaped meshing teeth 26 are formed on a distal end side over a predetermined range.
[0024]
The hand brake lever main body 14 is plate-shaped and is in a state of spreading toward the base end side, and is attached to the ratchet plate 12 via the lever connecting pin 28 on the base end side. .
[0025]
Further, the base end side of the hand brake lever main body 14 is connected to a brake cable or the like (not shown) via a joint member 30, and a hand brake operating portion (not shown) is operated via the brake cable or the like. It has become.
[0026]
The full stroke position due to the rotation of the hand brake lever main body 14 during braking is regulated by the head 32 of the joint member 30 coming into contact with the full stroke regulating position 34 of the ratchet plate 12.
[0027]
Further, the hand brake lever main body 14 is provided with a stopper pin 36, and the release position is regulated by the stopper pin 36 coming into contact with the lower end portion of the guide hole 38 formed in the ratchet plate 12. .
[0028]
The ratchet 16 is rotatably attached to the hand brake lever main body 14 via a ratchet connecting pin 40, and a claw 42 at the tip of the ratchet 16 can be engaged with the meshing teeth 26 of the ratchet plate 12.
[0029]
One end of the push rod 18 is coupled to the ratchet 16 via a push rod coupling pin 44 and is movably attached to the hand brake lever main body 14.
[0030]
Further, a push rod spring 46 is attached to the push rod 18, and the push rod spring 46 is biased in the meshing direction of the ratchet 16, that is, the distal end direction of the hand brake lever main body 14. Yes.
[0031]
The push rod spring 46 is supported by a plate 48 projecting from the hand brake lever main body 14 at the base end side, and is attached to the base end side of the operation knob 20 at the distal end side.
[0032]
The amount of protrusion of the push rod 18 from the front end of the hand brake lever body 14 is determined by the urging force of the push rod spring 46 and the contact force of the ratchet 16 on the ratchet plate 12 at the release position. .
[0033]
Further, an anti-vibration rubber 50 is attached to the midway position of the push rod 18 to prevent interference between the push rod 18 and the hand brake lever main body 14.
[0034]
The operation knob 20 is attached to the other end of the push rod 18 and protrudes from the tip of the hand brake lever main body 14.
[0035]
The operation knob 20 is formed in an angular cross section, specifically, a substantially quadrangular cross section.
[0036]
Such an operation knob 20 generally has a relatively low degree of design freedom due to mounting restrictions and the like, and generally has a circular cross section.
[0037]
For example, an operation knob with a circular cross section is screwed in while rotating the operation knob with respect to a screw formed at the tip of the push rod, and the overall length is adjusted. If you try to adjust the overall length by rotating it like the operation knob, the length will be determined at a halfway rotation angle, and the length cannot be adjusted, or the shape of the opening part of the grip tip There was a situation that the operation knob could not be rotated.
[0038]
Therefore, the operation knob 20 is constituted by the knob main body 52 and the knob cover 54 while the operation knob 20 has a square cross section, thereby eliminating the mounting restrictions.
[0039]
Specifically, at the time of injection molding of the knob body 52, the other end of the push rod 18 is inserted into an injection mold, and the knob body 52 is integrally attached to the other end of the push rod 18 in advance by injection molding. I am doing so.
[0040]
This eliminates the need to adjust the overall length by rotating the knob body 52 relative to the push rod 18.
[0041]
Then, in a state where the hand brake lever main body 14 to which the push rod 18 with the knob main body 52 is attached is covered with the grip molded article 22, the knob cover is exposed to the knob main body 52 exposed from the opening at the tip of the grip molded article 22. 54 is inserted into the grip molded product 22 from the distal end side of the grip molded product 22 so as to cover the knob main body 52 from the distal end side, so that the rectangular operation knob 20 can be attached.
[0042]
Further, as shown in FIGS. 3 (1) to 3 (3), the knob main body 52 is in a state in which the elastically deformable engaging claws 56 protrude outward from both side surfaces, and the knob cover 54 is shown in FIG. ), An engagement hole 58 for receiving and engaging the engagement claw 56 is formed at a position corresponding to the engagement claw 56 on the side portion, and the engagement claw 56 and the engagement hole 58 are engaged with each other. The knob cover 54 is engaged and fixed to the main body 52.
[0043]
In this case, the knob cover 54 is formed of a hard synthetic resin, for example, ABS resin, and the knob main body 52 is formed of a synthetic resin softer than the knob cover 54, for example, polypropylene. Assembling is facilitated by securing the engaged state by the engaging claws 56 while ensuring the texture at the time of contact.
[0044]
The knob cover 54 may be made of a hard resin so that it can be plated, has various colors to improve the appearance, and the knob main body 52 is made of polypropylene or the like to be relatively inexpensive. it can.
[0045]
Further, as shown in FIGS. 1A and 1B, a guide convex portion 60 is formed on the inner lower surface of the knob cover 54 along the insertion direction of the knob cover 54, and the guide convex portion on the lower surface of the knob main body 52 is formed. A guide recess 62 is formed at a position corresponding to the portion 60 to facilitate insertion and assembly of the knob cover 54.
[0046]
Further, as shown in FIGS. 1 and 2, a guide cap 64 for guiding the operation knob 20 is provided in the distal end portion of the grip molded product 22, and the guide cap 64 guides the engagement hole 58 of the operation knob 20. By accommodating the operation knob 20 in the cap 64, the appearance is improved so that the engagement hole 58 is not visible from the outside.
[0047]
The guide cap 64 is insert-molded in the distal end portion of the grip molded product 22 and serves as a guide when the knob cover 54 is attached to the knob main body 52. As shown in FIG. A stopper 65 that protrudes from the inner end of the knob cover 54 and restricts the pushing position when the operation knob 20 is pushed is formed.
[0048]
Further, when the push knob 18 is moved by operating the operation knob 20, the connecting portion between the push rod 18 and the ratchet 16, that is, the push rod connecting pin 44 moves along a rotation locus centering on the ratchet connecting pin 40. Therefore, the height of the end portion of the push rod 18 on the ratchet 16 side changes.
[0049]
When the amount of change in height is large, the angle of the end of the push rod 18 on the side of the operation knob 20 also changes, the operation knob 20 interferes with the inner surface of the guide cap 64, and the sliding performance of the operation knob 20 is deteriorated. As a result, the operability is reduced.
[0050]
Therefore, as shown in FIGS. 2 and 4, the stroke position L / 2 of 1/2 of the entire stroke L of the push rod connecting pin 44 when the operation knob 20 is pushed and not pushed is set to the rotation center O of the ratchet 16. The push rod 18 is set on a straight line S perpendicular to the planned movement direction line P.
[0051]
In other words, push rod connection at the time of pushing and non-pushing at an equal distance stroke position around a straight line S that is orthogonal to a predetermined movement direction line P of the push rod 18 and passes through the rotation center O of the ratchet 16. The position of the pin 44 is set.
[0052]
By doing so, the height change amount h at the end of the push rod 18 on the ratchet 16 side can be minimized, and the operability can be minimized by minimizing the interference between the operation knob 20 and the guide cap 64. Can be improved.
[0053]
The grip molded product 22 includes a grip portion 66 that covers a grip portion of the hand brake lever main body 14 and a skirt-like cover that covers from the grip portion 66 to the vicinity of the lever connecting pin 28 that is the rotation center of the hand brake lever main body 14. It has the state which has the part 68 integrally.
[0054]
A longitudinal rib 84 is formed on the back portion 74 of the grip molded product 22 so as to fill a gap between the grip portion 22 and the hand brake lever main body 14.
[0055]
The cover portion 68 is flat from the grip portion 66 side to the vicinity of the opposite end portion, and is spread in a skirt shape in accordance with the spread of the handbrake lever main body 14, and the inside is a space. Therefore, the end portion of the cover portion 68 is deformed by its own weight or hangs down due to secular change, and the both side portions 70 bulge outward, interfere with surrounding parts, and easily deteriorate. .
[0056]
Therefore, as shown in FIGS. 1, 5, and 6, the reinforcement that prevents the side portions 70 near the end from swelling outwardly on the inner surface near the end opposite to the grip portion 66 of the cover 68. A plurality of ribs 72 are provided as parts.
[0057]
The ribs 72 are provided at predetermined intervals on the back 74 and the abdomen 76 near the ends, and connect both side portions 70 near the ends.
[0058]
Further, the plurality of ribs 72 are formed so as to be inclined in the die cutting direction A at the time of injection molding, so that the die cutting can be easily performed.
[0059]
The plurality of ribs 72 are provided on both the back portion 74 and the abdominal portion 76, but it is preferable that the plurality of ribs 72 be provided on the back portion 74 that is easily bent by its own weight.
[0060]
[0061]
[0062]
[0063]
The present invention is not limited to the embodiment described above, and can be modified into various forms within the scope of the gist of the present invention.
[0064]
For example, in the above-described embodiment, the square operation knob including the knob main body and the knob cover is used. However, the present invention is not limited to this example, and an operation knob having a circular cross section including one component may be used. .
[0065]
Moreover, in the said embodiment, although the grip molded product shall have a grip part and a cover part integrally, these can also be formed as a different thing.
[Brief description of the drawings]
FIG. 1 is an overall side view showing a part of a handbrake lever device according to an embodiment of the present invention in a cutaway manner.
FIG. 2 is a partially enlarged view of the hand brake lever device of FIG.
3 is a rear view of the operation knob shown in FIGS. 1 and 2, FIG. 2 is a sectional view taken along line II-II in FIG. 1, and FIG. 3 is a line III-III in FIG. FIG.
4 is an explanatory view showing a position setting state of the push rod connecting pin of FIG. 2; FIG.
FIG. 5 is a partial enlarged view showing a state of a rib of the cover part in FIG. 1;
6 is a cross-sectional view taken along line VI-VI in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Hand brake lever apparatus 12 Ratchet plate 14 Hand brake lever main body 16 Ratchet 18 Push rod 20 Operation knob 22 Grip molded product 66 Grip part 68 Cover part 70 Side part 72 Rib 74 Back part

Claims (1)

A ratchet plate fixed to the vehicle body side, a hand brake lever body rotatably attached to the ratchet plate, and a grip molded product attached to the hand brake lever body;
The grip molded product has a grip portion that covers a grip portion of the hand brake lever main body, and a cover portion that spreads from the grip portion to the vicinity of the rotation center of the hand brake lever main body in a skirt shape,
The both sides near the end are connected at predetermined intervals to the inner surface of the back at least near the end opposite to the grip portion of the cover to prevent both sides near the end from bulging outward. A hand brake device characterized in that a plurality of ribs are provided so as to be inclined in a die-cutting direction at the time of injection molding of the cover portion .

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