JPH10329773A - Small vehicle with antitheft device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To store and hold an antitheft device without impairing an appearance in a model having no space to store the antitheft device under a seat or the like. SOLUTION: A motorcycle is provided with a main frame extending obliquely rearward from a head pipe 12 to support turnably a front fork 10 by the frame and a vertical down-frame 18 from the head pipe 12 to a front side of an engine 16. A U-shaped locking device 24 comprising a substantially U-shaped lock main body 20 and a key member 22 engaged with both end parts of the lock main body 20 is detachably mounted to the down-frame 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small vehicle such as a motorcycle provided with an anti-theft device.

[0002]

2. Description of the Related Art Recently, theft of two-wheeled or four-wheeled vehicles has become a problem. For motorcycles, Japanese Unexamined Patent Publication No. 6-2065
It is considered that a U-shaped lock device combining a U-shaped main body and a cylindrical key member is most effective in preventing theft as disclosed in JP-A-83-83 and the like. This kind of U
The character lock device inserts the one-sided arm of the U-shaped lock body between the spokes of the wheel, puts the tire in a state sandwiched by both arms, and fixes the key member to the tip of the arm, so that the motorcycle can be mounted on the wheel. It is to prevent rotation or to be fixed to a fixed object.

[0003] Therefore, the U-shaped locking device as described above,
Since it is desirable to be able to lock freely at a moving place, attention is now focused on how to accommodate and hold this device in a vehicle body. Although it is conceivable that the U-shaped locking device is simply tied to the carrier (loading bed), it becomes an obstacle when other luggage is to be put on the loading bed. Therefore, there is a high demand to secure a dedicated mounting place. Therefore, Japanese Patent Laid-Open No. 6-2
In Japanese Patent Application Laid-Open No. 06583b and Japanese Patent Application Laid-Open No. Hei 8-244661, a U-shaped lock device is accommodated in the lower surface of the carrier body of the carrier.

At present, there are some on-road vehicles and the like in which the seat is integrated in the front-rear direction and the seat is detachable. Also,
There is also a device in which a U-shaped lock device is detachably stored without removing a seat or a cover (see Japanese Patent Application Laid-Open No. 7-329847).

[0005]

However, in a motorcycle of a type in which a seat is provided at a lower position than a fuel tank or a rear fender such as an American model, there are restrictions such as a low seat height and a fixed seat type. For this reason, it was difficult to hold the U-shaped lock device because there was no room in space. Further, in the American type, a rear carrier is rarely provided due to a problem in appearance and harmony of appearance, and there is a problem that it is practically impossible to attach a U-shaped locking device to the rear carrier.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned conventional problems, and in a model having no space under a seat or the like, accommodates an anti-theft device such as a U-shaped lock device without losing its appearance. It is an object of the present invention to provide a small vehicle having an anti-theft device that can be held.

[0007]

The present invention has the following arrangement to solve the above-mentioned problems. An invention according to claim 1 is a small vehicle having a frame having a main frame extending rearward from a head pipe and a down frame hanging down from the head pipe forward of the engine. A small vehicle provided with an anti-theft device, wherein the anti-theft device comprising a key member engaged with both ends of the anti-theft device is detachably attached to the down frame.

According to a second aspect of the present invention, there is provided a small vehicle in which a radiator is provided on a front side of a down frame, wherein the U-shaped lock body and the key member are connected to a down frame on a rear side of the radiator. 2. The radiator is mounted between an engine cylinder and the radiator.
A small-sized vehicle provided with the anti-theft device according to (1).

According to the first aspect of the present invention, the anti-theft device is detachably attached to the down frame, so that an easy attachment portion of the anti-theft device is secured. In other words, when there is no space under the seat and the anti-theft device cannot be installed as in a motorcycle such as an American type motorcycle, there is a space around the down frame so that the anti-theft device can be installed. Large degree of freedom. Further, since the down frame is located in front of the engine and has no obstacles around the down frame, it is relatively easy to put in a hand and the anti-theft device can be easily attached and detached. Further, it does not hinder the riding posture and steering of the occupant, and does not cause problems such as a decrease in maneuverability.

According to the second aspect of the present invention, the U-shaped lock body and the key member are mounted between the down frame on the rear side of the radiator and the engine cylinder and along the radiator. Even in a small vehicle having a radiator, the space between the down frame and the engine cylinder can be effectively used, and the space efficiency can be improved.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 are explanatory diagrams of a U-shaped lock device (corresponding to an anti-theft device) 24 provided in the motorcycle according to the embodiment.

As shown in FIGS. 1 and 2, the motorcycle has a main frame 14 extending slightly obliquely rearward from a head pipe 12 rotatably supporting a front fork 10; And a down frame 18 that hangs forward from the engine 16.
A U-shaped lock device 24 comprising a substantially U-shaped lock body 20 and key members 22 engaging with both ends 20a of the lock body 20 is detachably attached to the down frame 18. .

[0013] The motorcycle has a down frame 1.
A radiator (eg, an oil cooler) 26 having a substantially rectangular shape as viewed from the front is disposed on the front side of the U. 8, and the U-shaped lock main body 20 and the key member 22 are attached to the rear side of the radiator 26 at the rear side. The radiator 26 is mounted between the frame 18 and each of the cylinders 16 a and 16 b of the engine 16 and along the plane of the radiator 26.

Note that, as shown in FIG.
Are the front and rear cylinder cylinders 16a and 16b, respectively.
Is a V-type engine in which the engine oil is cooled by a radiator 26 and the rear wheel 8r is driven via a shaft 8p. It is also possible to use an engine that employs a water cooling system using a radiator.

At the lower part of the engine case 16c where the cylinder cylinders 16a and 16b are erected, a down frame 18 having an L-shape in side view extends around and extends rearward. Lower frame 18l
Are connected. The shaft 8p is connected to the lower frame 1
It extends through the inside of 8l to the drive gear box 8g of the rear wheel 8r.

In the engine case 16c, a cell motor 16d is installed at the front end of the front end of the cylinder cylinder 16a on the front side, and an oil filter 16e is installed below the front end. The battery housing case 1 is located in front of the front cell motor 16d and above the oil filter 16e.
6f is fixedly mounted on the down frame 18. A rider's seat 16g is provided behind and above the engine 16, and the level L of the seat surface of the rider's seat 16g is substantially close to or coincides with the upper ends of the engine cylinders 16a and 16b. The seat 1
On the rear side of 6g, a pillion sheet 16i is arranged on the upper surface of the rear end 16h.

Further, the present embodiment will be described in detail. As shown in FIG. 3, the motorcycle frame is a pipe frame entirely made of a pipe material. The head pipe 12 has an upper end 12a substantially perpendicular to the axis of the head hype 12 and a front end of the main frame. 14a is fixed by welding, and the central portion 1 of the head hype 12
The upper end 18a of the down frame 18 is fixed to the base 2b by welding.

The upper end 14a of the main frame and the upper end 18a of the down frame are connected to each other.
Both ends 28a and 28 of the bridge 28 made of pipe material
b is welded and fixed in a state in which it is tilted backward from the head hype 12, and the periphery of the head hype 12 is reinforced.

On the rear side surface near the welded continuous portion of the bridge portion 28 and the upper end portions 18 of the right and left down frames 18, first lean reinforcements 30, 30 each having a substantially triangular shape made of a plate and having a plane extending in the front-rear direction. Are fixed by welding on the left and right, and the first lean reinforcement 30 on the left and right,
30 has a U-shaped locking device 24 which is circular in side view.
Mounting hole 30a is formed.

As shown in FIG. 4, the down frame 18 extends diagonally downward from the head pipe 12 in a left-right pair so as to exhibit a Y-shape and bends inward from the middle (18b) to be parallel in the left and right directions. Extends to. Also, the rear side of the head hype 12 and the upper end 18 of the down frame.
A second lean hose 32 made of a plate material is welded and fixed from the lower portion of the continuous portion near the welded portion a to the inner surface of the down frame 18.

As shown in FIG. 4 and FIG. 5, the second lean hosement 32 has a C-shape that is opened substantially downward when viewed from the front of the vehicle body. In order to fix the 2 holder 38 and the radiator 26, one bracket portion 34R, 34L, 34L from the right side and the left side of the vehicle body protrudes from the right side of the vehicle body in the vehicle width direction inside below the lean hose 32. Mounting bolt holes 34a, 34a, 34a are formed in these bracket portions 34R, 34L, 34L. A bolt hole 34b for fastening the upper end of the radiator 26 is formed in the upper portion of the second lean hosement 32, and a bracket 26a fixed to the upper end of the radiator 26 is fastened to the bolt hole 34b. It has become.

Here, the U-shaped locking device 24 is a
As shown in the figure, the first and left and right first and second lockers 24 are attached to the front of the engine 16 behind the down frame 18 at the attachment position of the radiator 26 and to hold the lock body 24a of the U-shaped lock device 24 as described above. Mounting holes 30a, 30a are formed in the lean hosements 30, 30. However, if only the thickness of the lean hosements 30a and 30a is used, there is a possibility that a play of the attached lock body 20 or a malfunction of the lock body 20 may occur.

Therefore, in the embodiment, as shown in FIGS. 4 and 5, one arm portion 20b1 of the lock body 20 is provided.
Through the left and right lean reinforcement 3
A first holder body 36 made of an integral pipe material is fixed to the mounting holes 30a, 30a between the holes 0, 30 by welding or the like.
In this case, both ends of the first holder body 36 are attached to the inside of the lean reinforcement 30, 30 and the mounting holes 30a, 30.
It corresponds to the surrounding position of a and the like, and also serves as a bridge for the frame in terms of strength and rigidity.

If the other arm portion 20b2 of the lock body 20 is not held, the U-shaped locking device 24 will flutter. Therefore, the U-shaped lock device 24 is held through the arm portion 20b2 to prevent fluttering. As shown in the second
A holder body 38 is provided on the rear side of the radiator 26 and in contact with the rear side of the down frame 18. That is, the second holder body 38 is made of an integral pipe material that traverses the left and right down frames 18 and 18 and that the left end 381 projects longer than the right end 38r, as shown in FIGS. A lower outer surface 40a of a bracket 40 having a crank shape as viewed in the pipe axial direction is fixed to the central portion 38c by welding.
In this case, the upper outer side surface 40b is formed at a position in contact with the brackets 34L and 34R of the second leanment 32.

As shown in FIG. 6, bolt holes with welding nuts 40c are formed on the left and right sides of the upper back surface of the bracket 40, and the upper outer side surface 40b is formed on the second lean hose 32. Tighten to the brackets 34L, 34R with mounting bolts according to the brackets 34L, 34R.

The left end 38l of the second holder body 38
, A hook body 44 for locking the band body 42 is fixed by welding. As shown in FIG. 7, the band body 42 is formed by connecting a metal rectangular ring body 42b to both ends of a band-like body 42a made of an elastic body such as an elastomer or rubber.

When the key member 22 is engaged with the lock body 20, the band member 42 is hooked on the hook member 44 to be locked, so that the outer surface of the key member 22 is pressed by the rubber band member 42. And the inner surface of the key member 22 is brought into contact with the left end 381 of the second holder body 38. In this way, the key member 22 is pressed down from both side surfaces and regulated, so that the U-shaped lock device 24 does not flutter in the left-right direction.

According to the embodiment, since the U-shaped lock device 24 is detachably attached to the down frame 18, the U-shaped lock device 24 is mounted without a space below the seat as in a motorcycle such as an American type motorcycle. If it is impossible to do so, if the down frame is 18, there is a space around it, and the U-shaped lock device 24 can be easily attached and can be held in an optimum place. Further, since the down frame 18 is located in front of the engine and has no obstacles around it, the down frame 18 is relatively easy to reach, and the U-shaped lock device 24 can be easily attached and removed. Further, the U-shaped lock device 24 mounted and held on the down frame 18 does not hinder the occupant's riding posture and steering, and does not cause problems such as deterioration in maneuverability.

The U-shaped lock body 20 and the key member 22
Means that the radiator 26 is mounted between the down frame 18 on the rear side of the disposition position of the radiator 26 and the front cylinder 16a of the engine 16 and along the plane direction of the radiator 26. Even with a certain motorcycle, the down frame 18 and the engine cylinder 16a
Can be used effectively, and the space utilization efficiency can be improved.

Further, the left and right first leanment 3
Attachment holes 30a, 30a are formed in 0, 30, and a first holder 36 made of a pipe is fixed thereto by welding, and the holder 36 is held through one arm portion 20b1 of the lock body 20 of the U-shaped lock device 24. . Therefore,
Since the reinforcement 30 and the bridge 28 of the frame can be used, there is no problem in appearance and manufacturing.

At the same time, the second holder 38 is fastened to the second lean hose 32 and the second holder body 3
8 through the other arm portion 20b2 of the lock body 20. As described above, the U-shaped lock device 24 can be attached to and detached from the vehicle body by engaging and disengaging only the key member 22.

The second holder 38 is connected to the radiator 26
Since it is fastened to the frame (specifically, the second lean hosement 32) on the back side, even if the second holder 38 for mounting the U-shaped locking device 24 is removed and brought into the standard state, the appearance does not change, and the removal is performed. The appearance quality is improved without any discomfort even in the state. Also, a small U-shaped locking device 24
It is also possible to tentatively run with only the upper part attached to the first holder 36.

The mounting hole 30a of the first lean hosement 30 is formed by inserting a rubber cap into the mounting hole 30a.
Even when the character lock device 24 is not held, the appearance quality does not deteriorate. Further, the mounting hole 30a can be used as a rope passing hole for towing.

[0034]

As described above, according to the first aspect of the present invention, in a model having no space for accommodating a U-shaped lock device under a seat or the like, it is possible to hold the U-shaped lock device without losing its appearance. According to the second aspect of the invention, even in a small vehicle having a radiator, the space between the down frame and the engine cylinder can be effectively used, and the space efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is an overall side view of a motorcycle including a U-shaped lock device according to an embodiment of the present invention.

FIG. 2 is a detailed view of a mounting portion of the U-shaped lock device of FIG.

FIG. 3 is an explanatory view of a frame around a mounting portion of the U-shaped lock device.

FIG. 4 is a detailed front view of the U-shaped lock device.

FIG. 5 is a detailed perspective view of a U-shaped locking device.

FIGS. 6 (a), (b), and (c) are front, side, and plan views of a second holder for mounting a U-shaped lock device.

FIGS. 7A and 7B are a plan view and a side view of a band body.

[Explanation of symbols]

 Reference Signs List 16 engine 18 down frame 20 lock body 22 key member 24 U-shaped lock device 26 radiator 30 first lean hosement 30a mounting hole 32 second lean hosement 36 first holder 38 second holder

Claims (2)

[Claims] 1. A small vehicle in which a frame has a main frame extending rearward from a head pipe and a down frame hanging down from the head pipe forward of the engine, wherein a substantially U-shaped lock body and both ends of the lock body are provided. A small vehicle equipped with an anti-theft device, wherein an anti-theft device comprising a key member engaged with a part is detachably attached to the down frame. 2. A small vehicle having a radiator disposed on a front side of a down frame, wherein the U-shaped lock body and a key member are disposed between a down frame and an engine cylinder on a rear side of a position where the radiator is disposed. A small vehicle equipped with the anti-theft device according to claim 1, wherein the small vehicle is mounted along the radiator.