JPH0353993Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention relates to an improvement in a bicycle brake lever in which a lever pivotally mounted on a lever bracket is divided into a grip and a pivoting member.

[Conventional technology]

Conventionally, the grip part and the pivoting part of a lever that is pivotally connected to the lever bracket of a bicycle handlebar are integrally formed, so the grip is made of a metal material that has the strength required for the pivoting part, which requires rigidity. The parts are also integrally formed. Therefore, if the grip part is broken or damaged, it needs to be replaced even if there is no problem with the pivoting part, and conversely, if the pivoting part is damaged, it is necessary to replace the grip part as well. . Furthermore, since the grip portion and the pivoting portion are integral and made of the same material, it has been impossible to replace the grip portion with a synthetic resin material that has an excellent tactile feel. Therefore, in the brake lever for a two-wheeled vehicle disclosed in Utility Model Application No. 55-4916, the present applicant has provided a gripping piece made of synthetic resin with a locking hole for pivotally supporting the engaging element at the end of the operating wire, and a locking hole that is continuous with the locking hole. An engaging element insertion hole that opens on the lower surface and an operating wire pull-out groove that opens on the front side continuously with the insertion hole are provided, and a shaft support piece made of a sheet metal is provided with an engagement element insertion hole that is open on the lower surface of the gripping piece and that is connected to the insertion hole. A top wall having a groove for inserting an engager that matches the pull-out groove, and a pair of left and right side walls bent downward from both sides of the top wall and having a pin shaft support hole, the top wall of the shaft support piece; We have already proposed a structure in which the gripping piece is fastened to the lower surface of the gripping piece via a screw, and this has been able to solve the above-mentioned drawbacks and has achieved considerable results. According to the above structure, an engaging element insertion hole communicating with the shaft supporting hole is formed in the gripping piece, and a groove communicating with the engaging element insertion hole is formed in the top wall of the shaft supporting piece. In this case, the operating wire (inner wire of the brake wire) is always inserted and set into the shaft support hole from below the shaft support piece through the groove and further through the engagement element insertion hole. However, in the above configuration, it is necessary to form a locking hole in the gripping piece as well as a groove for inserting the engaging element that communicates with the locking hole and has approximately the same width as the groove and opens at the lower surface. Therefore, since the cavity consisting of the locking hole and the groove for inserting the engaging element is formed large, when the gripping piece is molded from synthetic resin, the locking hole and the groove for inserting the engaging element are made large for strength reasons. The formed portion had to be thicker, and the gripping piece as a whole had to be larger. Furthermore, in order to attach or detach the brake wire, the lever must be rotated to insert or remove the engager from the opening between the lever bracket and the lever, and it is not possible to directly insert or remove the engager from the outside (upward or lateral direction).

[Problem that the invention attempts to solve]

This idea was devised as a result of intensive research in view of the above circumstances, and its main problems were to miniaturize the grip by receiving the engager fitted in the storage part as a part of the pivoting member, and to reduce the size of the grip. To provide a bicycle brake lever in which the engaging element can be inserted into a storage part from the outside after the lever is assembled.

[Means to solve the problem]

In order to solve the above-mentioned problems, this invention includes a grip provided with a storage part for storing a brake wire engager, an insertion hole that communicates with the storage part and into which the engager is inserted, and a grip fixed to the grip. A bicycle brake lever comprising a pivot member pivotally attached to a side wall of a lever bracket attached to a handlebar of the bicycle, wherein: (a) the insertion hole opens at the side or top surface of the grip; (b) the pivot member the member has a grip attachment piece on its upper surface that is fixed to the lower part of the proximal end of the grip; (c) a part of the grip attachment piece is fitted into the housing so as to be in contact with the housing; A technical measure is taken to form the engaging element so that it can be received from below.

[Effect]

The grip is integrally fixed to the pivot member via fixing means on the grip attachment piece. A portion of the grip attachment piece portion contacts the storage portion and receives the engager fitted in the storage portion below, so that the grip does not need to be made large. Since the insertion hole opens at the side or top surface of the grip, the engager of the brake wire can be latched after the brake lever is assembled.

【Example】

Preferred embodiments of this invention will be described below with reference to the drawings. A bicycle brake lever 1 shown in FIG. 1 has a structure in which a lever consisting of a pivoting member 3 and a grip 4 is pivotally attached to a lever bracket 2 attached to a handlebar H of a bicycle. The pivot member 3 has a pair of left and right side pieces 31 and 32 that are fitted along the inner walls on both sides of the hollow portion 2A of the lever bracket 2, as shown in FIGS. 3a and 3b. , 32 are bent at the base ends of the grip attachment pieces 35, which extend substantially horizontally toward the opposite side, and are connected to each other. The grip attachment piece 35 has a transparent hole H1 for inserting a tightening screw V1 for fixing the grip 4, and the side pieces 31 and 32 have holes for attaching a pivot P at opposing positions, respectively. Parts H2 and H3 are provided transparently. Further, the grip attachment piece 35 is formed with a front locking piece 7A that is curved in an arc shape toward the front side and has a longitudinal groove in the center. The lower part of the engager T of the brake wire W is rotatably latched. Further, on the rear side of the grip attachment piece 35, there is a plate-shaped rear locking piece 7B that extends downwardly.
is formed. Next, the grip 4 is made of a synthetic resin material, and has a fitting recess 40 on its front inner surface, as shown in FIG. It consists of a recess corresponding to the outer shape of the attaching piece 35 and the front locking piece 7A and the rear locking piece 7B connected to the front and rear thereof, into which they are completely fitted. Therefore, there is no possibility that the grip 4 will shift in the left-right direction due to the engagement between the grip attachment piece 35, the front locking piece 7A, and the rear locking piece 7B. The grip 4 also has an opening 41 that expands on the outside and has a horizontal inner wall, and a through hole 42 that penetrates inward from the opening 41. Hole H1 and through hole 42
The rear end side extends rearward along the extending direction of the bicycle handlebar H. In this embodiment, the head of the tightening screw V1 or the shaft in the vicinity thereof is bent along the shape of the opening 41, so that the head does not protrude from the outer surface of the grip 4 during tightening. (See Figure 2). On the front side of the grip 4, a known bicycle brake (not shown) (caliper brake,
A configuration is provided for latching a brake wire W consisting of a combination of an inner wire and an outer wire that operate a disc brake or other braking mechanism. That is, an entry/exit groove 60A for leading out the brake wire (inner wire) W, a communicating hole-shaped storage section 60B for rotatably storing the above-mentioned engaging element (tyco) T, and an opening formed in the extending direction thereof. It is composed of an insertion hole 60C. Here, a part of the lower part of the storage part 60B is open, and the front locking piece 7A is arranged so as to cover the opening and form a part of the peripheral wall. Further, the arrangement shape of the insertion opening 60C is not limited to the above-described configuration, and may be formed so that the engaging element T can be inserted from the upper surface of the grip 4, for example. Then, the grip 4 is tightened with a tightening screw V from above.
1 passes through the hole H of the grip attachment piece 35.
1 and tightened, the grip 4 and the grip attachment piece 35 can be fixed together. The pivoting member 3 integrated with the grip 4 in this way extends the side pieces 31 and 32 of the pivoting member 3 to the inner walls 21 on both sides of the hollow portion 2A of the lever bracket 2.
are fitted along the lever bracket 2 and are pivotally connected together by a pivot shaft P that passes through the lever bracket 2 laterally. This lever bracket 2 has a clamp 2C screwed to it by a mounting screw V2 which vertically passes through the middle part of the pivot shaft P through a base (not shown), and can be attached to a handle H such as a drop handle by means of the clamp 2C. It has a known configuration to which a brake lever 1 is attached. Therefore, the user riding the bicycle operates the lever via the pivot member 3 using the grip 4, and uses the pivot P as a lever fulcrum to operate the engager T, which is latched to the brake wire connecting portion 6 which becomes the point of action. The brake wire W can be controlled in the brake application direction or brake release direction via the brake wire W. Further, in this invention, the lever may be used as a grip alone, or a safety lever (not shown) may be attached together with the grip. In this case, the safety lever is
They are both pivotally connected to the pivot P with latching means for latching. Alternatively, the safety lever may be fixedly connected to the grip attachment piece 35 or the side pieces 31 and 32 of the pivot member 3 so as to be interlocked therewith. FIG. 4 shows a bicycle brake lever 1 of this invention in which the grip 4 has a different shape. Since the configuration other than the shape of the grip 4 is the same as that of the previous embodiment, a description thereof will be omitted, but it goes without saying that the lever operation can produce the same effects as the previous embodiment. In this invention, the grip 4 and the pivot member 3 are made of different materials, but they may be made of the same material, and the material may be of any type as long as it has the strength required for the brake lever. Although the type of grip is not limited, it is preferable to use a synthetic resin material for the grip as in this embodiment because it facilitates molding, provides an excellent grip feeling, and reduces costs. Alternatively, one or both of the side pieces of the pivot member may be fitted along the outside of the side wall of the lever bracket.

[Effect of the idea]

This idea divides the lever, which is pivotally connected to the lever bracket, into a grip part and a pivot part, making it possible to partially replace the lever, and also making it possible to mold the lever from a different material, extending the life of the brake lever. In addition, it is advantageous in that costs can be reduced. Furthermore, since the grip portion does not need to be enlarged, even if it is molded from synthetic resin, it provides excellent braking sensation and improves aesthetics. Furthermore, since the brake wire can be directly taken in and taken out from the engaging element storage portion from the outside (upward or lateral direction), the attachment/detachment work is further simplified.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing an embodiment of the bicycle brake lever according to the invention in which a brake wire connecting portion is provided in the grip, Fig. 2 is a sectional view showing the same brake lever, and Fig. 3a shows its pivoting motion. FIG. 4 is a plan view of the member, b is a side view thereof, and FIG. 4 is a side view showing an embodiment of the grip having a different shape. 1... Bicycle brake lever, 2... Lever bracket, 3... Pivoting member, 4... Grip,
7A...Front locking piece, 7B...Backward locking piece, P...
... Pivot, H ... Handle, W ... Brake wire, T ... Engagement element, V1 ... Tightening screw.

Claims (1)

[Claims for Utility Model Registration] (1) A grip provided with a storage part for storing a brake wire engaging element, an insertion hole communicating with the housing part and into which the engaging element is inserted, and a grip fixed to the grip. A bicycle brake lever comprising a pivoting member pivotally attached to a side wall of a lever bracket attached to a handlebar of the bicycle, wherein the insertion hole opens on a side or top surface of the grip, and the pivoting member opens on the top surface of the grip. has a grip attachment piece that is fixed to the lower part of the proximal end of the grip;
A bicycle brake lever characterized in that a portion of the grip attachment piece is formed so as to be in contact with the storage section and receive an engaging element latched to the storage section below. (2) A utility model characterized in that an arcuately curved front locking piece is protruded from the tip of the grip attachment piece to rotatably support the brake wire engager stored in the storage part. A bicycle brake lever according to claim 1. (3) The bicycle brake lever according to claim 1, wherein the grip is made of a synthetic resin material.