JP2971836B2 - Bicycle control cable end cap - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an end cap mounted on an end portion of an outer tube of a control cable for a bicycle, for example, a control cable such as a brake cable or a transmission cable.

[0002]

2. Description of the Related Art In a conventional bicycle control cable such as a brake cable or a transmission cable, an outer tube constituting the cable is made of a flexible resin material. In order to attach such a control cable to a control cable mounting seat (stopper) provided on a bicycle frame, a manufacturer has to use a metal cable at one end or both ends of the outer tube when creating the control cable. Caulking the end cap or fixing the hard plastic end cap. As described above, the control cable is usually shipped as a control cable with an end cap attached. At this time, in order to prevent rust of the inner wire and reduce friction with the outer tube, before inserting the inner wire into the outer tube, inject lubricant such as grease into the outer tube. Is desirable. However, the operation of injecting the lubricant into the outer tube is extremely time-consuming, and the injected lubricant is not removed when the inner wire passes through the outer tube (i.e., the outlet of the inner wire). ) Leaks out from the end cap attached to), so that there is a problem that the lubricant is wasted.

[0003] The applicant of the present invention has disclosed in Japanese Patent Laid-Open No. 5-509.
No. 78 proposes a bicycle control cable of a type with an end cap attached to solve the above-described problem. In this control cable, a metal end cap having a shield portion is caulked and fixed to both ends of the outer tube, thereby preventing grease from leaking from between the outer tube and the inner wire. The grease is maintained in the inner wire insertion space in the outer tube. According to such a bicycle control cable, the grease hardly deteriorates for a relatively long time, and the grease hardly leaks due to the provision of the shield portion, and exists in the outer tube for a long time. As a result, it is possible to exert a lubricating action for a long period of time and prevent intrusion of muddy water and moisture.

[0004] More specifically, as shown in FIG. 12, a metal end cap 1 is fixed to both ends of a resin outer tube 3b by crimping the bicycle control cable 3. Further, inside the end cap 1, a grease shield portion 11 is formed at the end of the outer tube 3b by a plurality of rubber shield members 8 and a plurality of bushes 6. The shield member 8 and the bush 6 are formed in a ring shape so that the inner wire 3a can penetrate and slide, and the bush 6 holds the shield member 8 and forms a grease chamber 9. Have been. By forming the grease shield portions 11 at both ends of the outer tube 3b, grease G is supplied from the shield portion 11 at one end to the inner wire insertion space formed between these shield portions 11. ing.

However, such a bicycle control cable 3 with the end cap mounted thereon requires a plurality of shield members 8 and a plurality of bushes 6 to form a grease chamber 9 inside the end cap 1. Therefore, not only the number of parts increases but also the configuration becomes complicated. Therefore, it takes much time and effort to produce the end cap 1, and the productivity is low. Also,
Since the end cap 1 is caulked and fixed to both ends thereof so as to be integrated with the outer tube 3b, the grease G filled in the grease chamber 9 is consumed as the end cap 1 is used, and the operability of the bicycle control cable 3 is poor. If this happens, the outer tube 3b cannot be reused by replacing only the end cap 1. Further, since the end cap 1 is provided with the shield member 8, it is not possible to replenish and inject the grease G into the end cap 1 from the outside. Therefore, the entire bicycle control cable 3 must be replaced.

[0006] Such a bicycle control cable 3 with the end cap mounted thereon is already manufactured in a predetermined length and dimensions as ordered from the bicycle assembling manufacturer when shipped from the manufacturer. However, since the size and length of the control cable used vary depending on the type of bicycle, such a ready-made bicycle control cable 3 cannot be used for a bicycle assembly manufacturer that produces a small number of vehicles. For this reason, bicycle assembly manufacturers purchase and manufacture roll-wrapped outer tubes from control cable manufacturers instead of control cables with end caps, in order to quickly respond to the diversity and demand. Depending on the type of car, it may be cut to the required length and used by attaching an end cap to the control cable by yourself. Even when assembling the control cable in this way, in order to prevent rust on the inner wire and reduce friction with the outer tube, a lubricant such as grease is put inside the outer tube before passing the inner wire through the outer tube. Is desirably injected. However, such an operation of injecting the lubricant is not only very troublesome, but also, as described above, when the inner wire passes through the outer tube, the injected lubricant is applied to the other end of the outer tube (ie, It leaks from the end cap attached to the inner wire outlet).

Further, the control cable assembled in this manner has a poor sealing property of the end cap. Therefore, after being attached to the control cable attachment seat provided on the bicycle, the lubricant leaks from the end cap during use. As a result, the bicycle becomes dirty, and lubricity between the outer tube and the inner wire is reduced.

[0008]

The problem to be solved by the present invention is that even if a bicycle assembly manufacturer or the like attaches an end cap to the end of the outer tube and assembles the control cable, it can be easily detachably attached. It is possible to provide an end cap.

Another object to be solved by the present invention is to provide an end cap capable of exhibiting a lubricating effect for a long period of time and preventing the intrusion of muddy water and moisture while maintaining the sealing performance of a control cable at a conventional level. It is to provide. Yet another object of the present invention is to provide a nose-type end cap that can maintain the sealing performance of the end cap for a longer period of time.

Still another object of the present invention is to provide an end cap which can further enhance the connection with a rubber boot when a nose type end cap is used. Still another object to be achieved by the present invention is to provide an end cap in which the remaining state of the lubricant injected into the end cap can be visually recognized from the outside.

[0011]

SUMMARY OF THE INVENTION According to one embodiment of the present invention, an end cap 1 includes a bicycle control cable 3.
An end cap 1 attached to the end of the outer tube 60, comprising a hollow cylindrical housing 10 and a ring-shaped shield member 20 disposed coaxially adjacent to the first opening 12 of the housing 10. And the shield member 2
0 and coaxially adjacent to the outer tube 60.
Ring-shaped bottom plate 30 for receiving the end of the housing, a room-temperature low-flow lubricant 40 injected into the housing from the second opening 14 of the housing 10, and a shield member 2
0, and the lubricant 40 is provided in the first opening 1.
And a film 24 for preventing leakage from the two sides.

End cap 1 according to another aspect of the invention
In the end cap 1 described above, a wax-like substance 50 filled in at least the center hole 32 of the bottom plate 30 is provided instead of the film 24. When the end cap 1 is attached to the end of the outer tube of the control cable for a bicycle, since the lubricant 40 having low flowability at room temperature has already been injected into the housing 10, the inner wire is connected to the first opening of the end cap. When inserted into the outer tube from the part 12, the lubricant 40 always penetrates,
The inner wire is automatically covered with the lubricant 40. As a result, the rust prevention effect of the inner wire can be obtained, the frictional resistance of the inner wire can be reduced, and the shield member 20 can prevent intrusion of muddy water and moisture.

The shield member 20 of the housing 10
The end cap 1 is attached to the end of the outer tube of the bicycle control cable by means of the membrane 24 arranged in the center hole 22 or the wax-like substance 50 filled at least in the center hole 32 of the bottom plate 30. It is possible to prevent the lubricant 40 from leaking from the first opening 12 side of the housing 10 due to the pressing force at that time.

Further, such an end cap 1
Since it is composed of only the housing 10, one shield member 20, one bottom plate 30, and the lubricant 40, the structure is very simple, and it can be easily attached to and detached from the end of the outer tube of the bicycle control cable. It can be attached and used as a repair part. Therefore, even if the lubricating effect of the lubricant 40 is reduced, only the end cap 1 can be replaced, so that it is not necessary to replace the entire bicycle control cable.

An end cap 1 ′ according to still another embodiment of the present invention is an end cap 1 ′ attached to an end of an outer tube 60 of a bicycle control cable 3.
And a housing 10 having a hollow cylindrical large-diameter main body 11, and a pipe-shaped small-diameter nose 13 extending coaxially to the outside from outside the first opening 12 of the large-diameter main body 11. A ring-shaped shield member 20 disposed coaxially adjacent to the first opening portion 12 of the large-diameter main body portion 11, and an end portion of the outer tube 60 disposed coaxially adjacent to the shield member 20. Ring-shaped bottom plate 3 for receiving
0, a low temperature fluidity lubricant 40 injected into the inside of the large-diameter main body 11 from the second opening 14 of the large-diameter main body 11.
And a film 24 provided in the center hole 22 of the shield member 20 to prevent the lubricant 40 from leaking from the first opening 12 side.

An end cap 1 'according to still another embodiment of the present invention is the same as the above-described end cap 1'
Instead of 4, a wax-like substance 50 is provided at least in the center hole 32 of the bottom plate 30. Such a nose-type end cap 1 ′ has a large-diameter main body 1.
1 has a pipe-shaped small-diameter nose portion 13 extending coaxially outward from the outside of the first opening portion 12, so that the inner wire passing through the end cap 1 'is always connected to the shield member 20 of the end cap 1'. Maintained on the same axis, the shield member 20 is less likely to break. As a result, the sealing performance can be maintained for an even longer period.

Preferably, the wax-like substance 50 is further filled in the first opening 12. It is preferable that a projection 16 for strengthening the connection with the rubber boot is formed on the outer periphery of the tip of the small-diameter nose portion 13. The protrusion 16 further enhances the locking force between the nose portion 13 of the end cap 1 ′ and the rubber boot, and prevents the rubber boot from separating or falling off from the nose portion 13 of the end cap 1 ′. be able to.

It is preferable that at least a part of the housing 10 is a transparent part in which the state of the lubricant 40 injected therein can be visually recognized from the outside. Accordingly, the remaining state of the lubricant 40 injected into the housings of the end caps 1 and 1 'can be visually recognized from the outside, so that the time to replace the end caps 1 and 1' can be easily grasped. The lubricant 40 and the wax-like substance 50 are preferably grease that does not flow out at 80 ° C. or less.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an end cap according to the present invention will be described with reference to the drawings. First Embodiment FIG. 1 is a sectional view showing an end cap according to a first embodiment of the present invention, and FIGS. 2 to 6 show a bicycle control cable in which the end cap of the first embodiment is mounted on an outer tube. It is explanatory drawing of each process of assembling. The end cap 1 is a normal type end cap, and is attached to both ends of a resin outer tube 60 of a bicycle control cable such as a bicycle brake cable or a transmission cable. The housing 10 of the end cap 1 is hollow and has a substantially cylindrical shape, and the inner diameter is substantially the same as or slightly larger than the outer shape of the outer tube 60. A first opening 12 having an inner diameter smaller than the inner diameter of the housing 10 is formed at a front end side (right side in the drawing) of the housing 10, and a housing 10 is formed at a rear end side (left side in the drawing) of the housing 10. Opening 1 having an inner diameter substantially the same as the inner diameter of
4 are formed.

At a position adjacent to the first opening 12 inside the housing 10, a shield ring 20 having a substantially “engineered” cross section is provided coaxially with the first opening 12. At the center of the shield ring 20, a center hole 22 having an inner diameter substantially equal to the outer diameter of the inner wire 70 (described later) is formed. At a substantially intermediate position of the center hole 22, a thin film 24 for completely sealing the center hole 22 is provided. A ring-shaped bottom plate 30 is provided coaxially adjacent to the shield ring 20. Bottom plate 30
Is for receiving the distal end portion 62 of the outer tube 60 when the end cap 1 is attached to the end of the outer tube 60, and has a center hole 32 formed in the inner peripheral portion. Also, inside the housing 10, the second
The space between the opening 14 and the bottom plate 30 is defined as a lubricant chamber 15, and an inner wire 70 described later is provided in the lubricant chamber 15.
A lubricant 40 having low flowability at room temperature, which is used for the purpose of preventing rust and lubrication, is injected from the second opening 14. In consideration of various environmental conditions and handling at the time of shipment or transportation of the product, the lubricant 40 injected into the lubricant chamber 15 is such that the first opening 12 and the second opening 14 are vertically moved by the end cap 1. A lubricant having low flowability at room temperature is employed so that the lubricant does not flow out of the second opening 14 even when the upright state is set in the upright direction. The lubricant is preferably a grease that does not flow out of the end cap 1 at 80 ° C. or less.

Next, a process of assembling the bicycle control cable by attaching the end cap 1 according to this embodiment to the outer tube 60 will be described with reference to FIGS. FIG. 2 shows a state where the end cap 1 has begun to be mounted on the outer tube 60, and the distal end portion 62 of the outer tube 60 has been inserted into the lubricant chamber 15 from the second opening 14 of the end cap 1.

FIG. 3 shows a state in which the end cap 1 is mounted on the outer tube 60. At this time, the lubricant 40 injected into the lubricant chamber 15 is pressed by the distal end portion 62 of the outer tube 60. As a result, the lubricant 40 moves toward the bottom plate 30, and a part of the lubricant 40 enters the inside of the outer tube 60 or the center hole 32 of the bottom plate 30. FIG.
Shows a state in which the end cap 1 is completely attached to the outer tube 60, and the distal end portion 62 of the outer tube 60 is in contact with the contact surface 34 of the bottom plate 30. The lubricant 40 further moves toward the bottom plate 30 by the pressing force of the distal end portion 62 of the outer tube 60, and fills the space from the center hole 32 of the bottom plate 30 to the center hole 22 of the shield ring 20. In addition, a part of the lubricant 40 has entered the inside of the outer tube 60. At this time, since the film 24 is provided in the center hole portion 22 of the shield ring 20, the movement of the lubricant 40 is prevented by the film 24, and does not further move to the first opening 12 side of the end cap 1. . That is, when the end cap 1 is attached to the outer tube 60, the lubricant 40 flows from the center hole 22 of the shield ring 20 to the first hole of the end cap 1. Leakage to one opening 12 is prevented.

FIG. 5 shows a state in which the inner wire 70 is inserted into the end cap 1, and in the state shown in FIG.
The inner wire 70 is inserted into the end cap 1 from the first opening 12, breaks the film 24 of the center hole 22 of the shield ring 20, and the tip of the inner wire 70 is
We have just begun to get inside zero. FIG. 6 shows a state in which the inner wire 70 is inserted through the outer tube 60. When the inner wire 70 is further inserted into the outer tube 60 in the state of FIG. The surface of the inner wire 70 penetrating and penetrating through 40 is covered with the lubricant 40.

As described above, when assembling the bicycle control cable, according to the present invention, the end cap 1 is attached to the outer tube 60 without fixing the end cap 1 to the outer tube 60 as in the related art. The leakage of the lubricant 40 can be prevented only by a simple operation of inserting the inner wire 70 from the first opening 12 of the end cap 1 into the outer tube 60. Furthermore, a control cable for a bicycle having the end cap 1 that can exert the rust-preventing effect and the lubricating effect of the inner wire 70 for a long period of time and that can prevent intrusion of muddy water or moisture can be obtained. Further, since the housing 10 is provided with one shield ring 20 and one bottom plate 30 as components, and then only by injecting the lubricant 40, the end cap 1 can be formed, so that the structure becomes very simple. Further, the end cap 1 is easily and detachably attached to an end of the outer tube 60. As a result, it can be used as a repair part, and the lubricant 40
Even if the lubrication effect is reduced, only the end cap needs to be replaced, so that it is not necessary to replace the entire bicycle control cable. In addition, when the housing 10 is made of a transparent material, the remaining state of the lubricant 40 injected into the housing can be visually recognized from the outside, so that it is possible to easily grasp the time to replace the end cap 1.

Second Embodiment FIG. 7 is a sectional view showing a nose type end cap 1 'according to a second embodiment of the present invention. In the figure, the same components as those in the first embodiment are denoted by the same reference numerals, and only the differences from the first embodiment will be described here to simplify the description. As shown in FIG. 7, the difference between the second embodiment and the first embodiment lies in the shape of the housing 10,
Housing 10 of end cap 1 'of the second embodiment
Has a hollow, substantially cylindrical large-diameter main body 11 and a pipe-shaped small-diameter nose 13 extending coaxially outward from the outside of the first opening 12 of the large-diameter main body 11. A protrusion 16 for strengthening the connection with the rubber boot 90 may be provided on the outer periphery of the tip of the nose portion 13.

FIG. 8 is a sectional view showing the relationship between the end cap 1 'of FIG. 7 and other members. A control cable attachment seat (stopper) 82 for attaching a bicycle control cable is provided on the surface of the frame portion 80 of the bicycle, and the control cable attachment seat 82 has a middle hole 84 formed therein. The rubber boot 90 is used at the boundary between the inner wire 70 and the end cap 1 ′ during transmission of the bicycle control cable, and the connecting opening 92 is formed between the rubber boot 90 and the nose 13. And the insertion opening 94 is an insertion opening of the inner wire 70 into the rubber boot 90.

When a bicycle control cable is constructed by assembling the outer tube 60, the end cap 1 ', the rubber boot 90, and the inner wire 70,
As in the case of the first embodiment, first, the outer tube 6
0 is inserted from the second opening 14 of the end cap 1 ′ until the distal end 62 contacts the contact surface 34 of the bottom plate 30.
Next, the nose portion 13 of the end cap 1 ′ is passed through the middle hole 84 of the control cable mounting seat 82, inserted into the rubber boot 90 from the connection opening 92 of the rubber boot 90, and connected to the rubber boot 90. At this time, the nose portion 13 is inserted into the rubber boot 90 until the projection 16 formed on the outer periphery of the tip of the nose portion 13 is engaged with the step portion 96 formed inside the rubber boot 90. as a result,
The end cap 1 'and the rubber boot 90 are securely connected. In this state, the bicycle control cable is inserted by inserting the inner wire 70 into the rubber boot 90 from the inner wire insertion opening 94 of the rubber boot 90 and inserting the inner wire 70 through the nose portion 13. Constitute.

According to the end cap 1 ', the end cap 1' has the pipe-shaped small-diameter nose 13 extending coaxially outward from the outside of the first opening 12 of the large-diameter main body 11. Is always kept coaxial with the shield ring 20 of the end cap 1 '. Therefore, the shield ring 20 is less likely to be broken, and the sealing ability can be maintained for a longer time than the end cap 1 of the first embodiment.

Third Embodiment FIG. 9 shows an end cap 1 according to a third embodiment of the present invention.
FIG. In the figure, the same components as those of the first embodiment are denoted by the same reference numerals, and in order to simplify the description,
Here, only differences from the first embodiment will be described. FIG.
As shown in FIG. 7, the difference between the third embodiment and the first embodiment is that the lubricant 40 is prevented from leaking from the center hole 22 to the first opening 12 in the center hole 22 of the shield ring 20. This is a point that a film for performing the process is not formed. Instead, by filling the central hole 32 of the bottom plate 30 and the front and rear sides thereof with the wax-like substance 50, the lubricant 40
Is prevented from leaking into the first opening 12. This wax-like substance 50 is preferably a wax that does not flow out of the end cap 1 at 80 ° C. or lower, like the lubricant 40 injected into the lubricant chamber 15. In this embodiment, the same effects as those of the end cap 1 according to the first embodiment are obtained, and since the central hole 32 and the front and rear sides thereof are filled with the wax-like substance 50, the lubricity of the inner wire 70 at room temperature is improved. Even higher.

Fourth Embodiment FIG. 10 is a sectional view showing an end cap 1 'according to a fourth embodiment of the present invention. Since the end cap 1 'according to the fourth embodiment is also a nose-type end cap similar to the second embodiment, the same components as those in the second embodiment are denoted by the same reference numerals in the drawings, and the description is simplified. To
Here, only differences from the second embodiment will be described.

As shown in FIG. 10, the difference between the fourth embodiment and the second embodiment is that a lubricant 40 is provided in the center hole 22 of the shield ring 20 from the center hole 22 to the first opening. 12 is that no film is formed to prevent leakage to the surface 12. Instead, the center hole 3 of the bottom plate 30
By filling the wax 2 and the wax-like substance 50 on both sides thereof, the lubricant 40 is prevented from leaking into the first opening 12. This wax-like substance 50 is also in the lubricant chamber 1
It is preferable that the wax is such that it does not flow out of the end cap 1 at 80 ° C. or lower, like the lubricant 40 injected into the inside 5. The end cap 1 'according to the fourth embodiment has the same effects as the end cap 1' according to the second embodiment. In addition, since the center hole 32 and the front and rear sides thereof are filled with the wax-like substance 50, the end cap 1 'according to the fourth embodiment can be used at room temperature. , The lubricity of the inner wire 70 is further increased.

Fifth Embodiment FIG. 11 is a sectional view showing an end cap 1 'according to a fifth embodiment of the present invention. Since the end cap 1 'according to the fifth embodiment is also a nose-type end cap as in the fourth embodiment, the same components as those in the fourth embodiment are denoted by the same reference numerals in the drawing, and the description will be simplified. Here, only the differences from the fourth embodiment will be described.

As shown in FIG. 11, the difference between the fifth embodiment and the fourth embodiment is that in the end cap 1 'according to the fourth embodiment, only the center hole 32 of the bottom plate 30 and the front and rear sides thereof are provided with wax. The end cap 1 'according to the fifth embodiment is further filled with the wax-like substance 50 in the end cap 1' according to the fifth embodiment. Since the nose portion 13 is further filled with the wax-like substance 50, the lubricity of the inner wire 70 at room temperature is further improved as compared with the case of the fourth embodiment.

[0034]

When the normal type end cap of the present invention is used by attaching it to the end of the outer tube of the bicycle control cable, a lubricant 40 having low flow at room temperature is already injected into the housing. Therefore, when the inner wire is inserted from the first opening of the end cap into the outer tube, the lubricant must be penetrated. Therefore, the inner wire is automatically coated with the lubricant, so that the rust prevention effect of the inner wire can be obtained and the frictional resistance of the inner wire can be reduced. As a result, the operability of the bicycle control cable is improved, and the shield member can prevent intrusion of muddy water and moisture.

Further, since a film is provided in the center hole of the shield member of the housing, or at least the center hole of the bottom plate is filled with a wax-like substance, the end cap is attached to the end of the outer tube. It is possible to prevent the lubricant from leaking from the first opening side of the housing due to the pressing force. Further, since the end cap according to the present invention is composed of only the housing, one shield member, one bottom plate and the lubricant, the structure is very simple, and the end of the outer tube of the control cable is easily formed. It can be detachably attached to.
For this reason, it can be used as a repair part, and even when the lubricating effect of the lubricant is reduced, only the end cap needs to be replaced, so that it is not necessary to replace the entire control cable as in the related art.

The nose-type end cap of the present invention has a pipe-shaped small-diameter nose extending coaxially outward from the outside of the first opening of the large-diameter main body.
The inner wire passing through the end cap is always kept on the same axis as the shield member of the end cap, so that the shield member is not easily broken. Therefore, the sealing performance can be maintained for a longer time than the normal type end cap.

Further, since a projection for reinforcing the connection with the rubber boot is provided on the outer periphery of the tip of the small diameter nose portion of the end cap, the connection between the nose type end cap and the rubber boot is further improved. Be strengthened. As a result, it is possible to prevent the rubber boot from separating or falling off from the nose portion of the end cap. When the housing is made of a transparent material, the remaining state of the lubricant 40 injected into the housing can be visually recognized from the outside, so that the end cap replacement time can be easily grasped.

Further, according to the present invention, when a bicycle control cable manufacturer or a bicycle assembler assembles a bicycle control cable,
The operation of injecting a lubricant such as grease into the outer tube as in the related art can be omitted. Further, the conventional problem that the lubricant leaks from the other end of the outer tube and contaminates the control cable itself and the work place can be solved.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a normal type end cap according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a state in which the end cap has been started to be mounted on the outer tube when the bicycle control cable is assembled by mounting the end cap according to the first embodiment on the outer tube.

FIG. 3 is a diagram showing a state in which an end cap is being attached to an outer tube.

FIG. 4 is a view showing a state in which the end cap is completely attached to the outer tube.

FIG. 5 is a view showing a state where an inner wire is inserted into an end cap.

FIG. 6 is a diagram showing a state in which an inner wire is inserted into an outer tube.

FIG. 7 is a sectional view showing a nose type end cap according to a second embodiment of the present invention.

FIG. 8 is a sectional view showing a combination relationship between the nose type end cap of FIG. 7 and another member.

FIG. 9 is a sectional view showing an end cap according to a third embodiment of the present invention.

FIG. 10 is a sectional view showing a nose type end cap according to a fourth embodiment of the present invention.

FIG. 11 is a sectional view showing a nose type end cap according to a fifth embodiment of the present invention.

FIG. 12 is a sectional view showing a conventional bicycle control cable.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1 'End cap 3 Bicycle control cable 10 Housing 11 Large diameter main body part 12 First opening part 13 Nose part 14 Second opening part 16 Projection part 20 Shield member (shield ring) 22 Center hole part 24 Film 30 Bottom plate 32 Center hole 40 lubricant 50 wax-like substance 60 outer tube

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) F16C 1/00-1/28 B62M 25/02

Claims (9)

(57) [Claims] An end cap mounted on an end portion of an outer tube of a bicycle control cable, wherein the end cap has a hollow cylindrical housing, and is coaxial with and adjacent to a first opening of the housing. A ring-shaped shield member 20 disposed thereon; a ring-shaped bottom plate 30 disposed coaxially adjacent to the shield member 20 to receive an end of the outer tube 60; (2) A lubricant 40 having low flowability at room temperature injected into the housing from the opening 14 and provided at the center 22 of the shield member 20 so that the lubricant 40 leaks from the first opening 12 side. End cap 1 comprising: 2. An end cap 1 attached to an end of an outer tube 60 of a bicycle control cable 3. The end cap 1 is coaxial with a hollow cylindrical housing 10 and a first opening 12 of the housing 10. A ring-shaped shield member 20 disposed thereon; a ring-shaped bottom plate 30 disposed coaxially adjacent to the shield member 20 to receive an end of the outer tube 60; (2) A room temperature, low fluidity lubricant 40 injected into the housing from the opening 14, and at least the center hole 32 of the bottom plate 30 is filled in advance, and the lubricant 40 is filled from the first opening 12 side. An end cap 1 comprising a wax-like substance 50 for preventing leakage. 3. An end cap 1 'attached to an end of an outer tube 60 of a bicycle control cable 3.
A large-diameter main body 11 having a hollow cylindrical shape, and the large-diameter main body 11
And a pipe-shaped small-diameter nose portion 13 extending coaxially from the outside of the first opening portion 12 to the outside.
A ring-shaped shield member 20 disposed coaxially adjacent to the first opening 12 of the large-diameter main body portion 11; and an outer tube 60 disposed coaxially adjacent to the shield member 20. A ring-shaped bottom plate 30 for receiving an end of the large-diameter main body 11, a room-temperature low-flow lubricant 40 injected into the large-diameter main body 11 from the second opening 14 of the large-diameter main body 11.
And an end cap 1 ′ provided in the center hole 22 of the shield member 20 and preventing the lubricant 40 from leaking from the first opening 12 side. 4. An end cap 1 'attached to the end of the outer tube 60 of the bicycle control cable 3.
A large-diameter main body 11 having a hollow cylindrical shape, and the large-diameter main body 11
And a pipe-shaped small-diameter nose portion 13 extending coaxially from the outside of the first opening portion 12 to the outside.
A ring-shaped shield member 20 disposed coaxially adjacent to the first opening 12 of the large-diameter main body portion 11; and an outer tube 60 disposed coaxially adjacent to the shield member 20. A ring-shaped bottom plate 30 for receiving an end of the large-diameter main body 11, and a normal-temperature low-fluidity lubricant 40 injected into the large-diameter main body 11 from the second opening 14 of the large-diameter main body 11.
And a wax-like substance 50 which is filled at least in the center hole 32 of the bottom plate 30 in advance and prevents the lubricant 40 from leaking from the first opening 12 side. . 5. The end cap 1 'according to claim 4, wherein said wax-like substance (50) is further filled in said first opening (12). 6. The end cap 1 'according to claim 4, wherein a projection 16 for strengthening connection with a rubber boot is formed on an outer periphery of a tip of said small diameter nose portion 13. 7. The end cap 1, 1 ′ according to claim 2, wherein the wax-like substance 50 is a wax that does not flow out at a temperature of 80 ° C. or less. 8. At least a portion of the housing 10
The end cap 1, 1 ′ according to claim 1, wherein the end cap 1, 1 ′ is a transparent portion in which a state of the lubricant 40 injected therein can be visually recognized from the outside. 9. The end cap 1, 1 'according to claim 1, wherein said lubricant 40 is grease which does not flow out at a temperature of 80 ° C. or less.