JP2003146283A - Anti-theft lock structure for saddle of bicycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an anti-theft lock structure for a saddle of a bicycle. SOLUTION: A clasping rod seat is attached to one end of a saddle post of the bicycle, and a screw rod with a connection part pierces through the clasping rod seat. The connection part of the screw rod can be stored in a recessed groove of a gear piece. A bolt is pivotally attached to a quick handle with the gear piece and a pivot hole of the connection part, and a nut is tightened to be connected to a clasping bolt seat. The saddle is positioned without a possibility of being loosened and a lock bolt of a lock core put inside the quick handle is combined with projecting teeth of the gear piece to form the forced engagement condition, so that the saddle can be speedily attached/ detached and the theft of the saddle can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kind of bicycle anti-theft lock mechanism for a saddle, and more particularly, a nipping seat and a locking device are provided at the upper end of the nipping rod seat of the saddle of the bicycle. Fix the saddle,
In addition, a tight connection of the locking device is combined to achieve an anti-theft lock and a structure that does not cause wobbling.

[0002]

2. Description of the Related Art Due to the progress of science and technology, bicycles are becoming more and more precise and beautiful, and their selling costs are relatively increasing. For this reason, not only the entire bicycle but also the respective parts may be stolen, and the most common one is the theft of the bicycle saddle. FIG. 1 shows a well-known quick handle structure for attaching and detaching a bicycle saddle, which has a bolt seat 100 at the end of a saddle post 500.
The bolt 200 passes through the through hole 3002 of the quick handle 300 having the eccentric cam head 3001 and further penetrates the bolt seat 100 to tighten the stem 4001 of the saddle 400, which is the most basic and quick seat tension fixing. The structure has been achieved. When adjusting the altitude of the saddle 400, simply turn the quick handle 300 to loosen the bolt seat 100, and the saddle 400
Can be raised and lowered to adjust. However, such a structure
Achieves a quick pinching and positioning function, but saddle 400
The stem 4001 of FIG. 4 only slightly holds the stem 4001 of the saddle 400 by the bolt 200 and the quick handle 300, and when the stem 4001 turns the quick handle 300, the stem 4001 loosens between the saddle post 500 and the bolt seat 100. , Whole bolt sheet 1
00 loosens and the entire saddle 400 is thereby removed from the vehicle body, which may result in theft of the saddle.

[0003]

The known bicycle saddle construction suffers from the above-mentioned drawbacks. Therefore, in order to improve this, the present invention provides a kind of bicycle saddle anti-theft lock structure. It has a sandwich rod seat provided at one end of a saddle post of a bicycle, and a screw rod having a coupling portion penetrates the sandwich rod seat, and the joint portion of the screw rod can be accommodated in a groove of a gear piece. , The bolt is pivotally connected to the quick handle by the gear piece and the pivot hole of the joint, and the nut is tightened and connected to the clamping bolt seat, the saddle is positioned and there is no risk of loosening, and it is placed in the quick handle. The locked lock bolt of the lock core is combined with the convex tooth portion of the gear piece to form a press-contact engagement state, achieve quick detachment of the saddle, and prevent the saddle from being stolen.

[0004]

According to a first aspect of the present invention, there is provided a quick handle having two fixed cam seats projecting outward at one end thereof, and a pivot hole is formed at an appropriate portion of the fixed cam seat. And a housing is formed between the two fixed cam seats, and a lock core is attached at an appropriate position in the center of the quick handle, and a convex block is provided at one end of the lock core so that an appropriate portion of the quick handle is provided. In combination with the hole that is installed horizontally, this convex block is a screw thread in this hole that is interlocked with the lock bolt that spring-provides the above-mentioned quick handle, which is a bolt and is screwed with a nut at one end. Is provided and a ring-shaped joint is provided at the other end, the bolt and the sandwiching rod sheet, two convex ears are extended from both sides, and a through hole provided for penetration of the bolt to the two convex ears. But The gripping rod sheet and the gear piece, which are scraped off, are provided with a concave groove for accommodating the joint portion of the bolt described above at an appropriate portion on one side, and a pivot hole is provided in the concave groove. A fixed slide block having a convex tooth portion formed on the circumferential side of the gear piece, a pressure contact portion extending on the side, and a pivot hole provided at an appropriate portion. , With the above fixed slide block, when the lock core of the quick handle is released with the key and the lock bolt is pulled out from the convex tooth part of the gear piece, push the quick handle backwards in one direction, In the relaxed state, the saddle height can be adjusted, and when the quick handle is pushed in the other direction, the elastic force of the spring is combined with the lock bolt inside the accommodation part of the quick handle, and the lock bolt is projected on the circumferential side of the gear piece. Pressed against the part, dissipate straining closing the clamping rod seat, subjected to the locking position the protruding teeth portion, characterized in that to achieve the anti-theft of the saddle, and the saddle antitheft locking structure of the bicycle. A second aspect of the present invention provides the bicycle saddle anti-theft lock structure according to the first aspect, wherein the fixed slide block is fitted and positioned to prevent a rotation phenomenon of the bolt during adjustment.

[0005]

2 is an exploded perspective view of an embodiment of the present invention. See also FIGS. The present invention is composed of a quick handle 1, a bolt 2, a holding rod sheet 3, a gear piece 4 and a fixed slide block 5. Of these, the handle portion 11 extends from one end of the quick handle 1, two fixed cam seats 12 project outwardly on both sides of the other end, and a pivot hole 121 is formed at an appropriate portion of the fixed cam seat 12. And the housing 123 is formed between the two fixed cam seats 12 (FIG. 3), the lock core 13 is attached to an appropriate position in the center of the quick handle 1, and the key 133 is provided on the outer end side of the lock core 13. Is provided with a lock hole 131, an eccentric convex block 132 is provided at the other end of the lock hole 131, and a hole 14 is laterally provided at an appropriate portion in the quick handle 1, and a spring 142 and a spring 142 are provided in the hole 14. A lock bolt 141 is attached so that the lock bolt 141 can form a linear reciprocating movement within the hole 14. The bolt 2 is a long metal rod and has a thread 22 that is screwed with a nut 23 at one end thereof.
A ring-shaped joint 21 is provided at the other end, and a hole 2 is formed in the joint 21.
11 are pierced. The sandwich rod sheet 3 has two convex ears 31 extending from both sides thereof.
1 is provided with a through hole 311 used for inserting the bolt 2. The gear piece 4 is provided with a concave groove 41 for accommodating the joint portion 21 of the above-described bolt 2 at an appropriate portion on one side, a pivotal contact hole 411 is provided in the concave groove 41, and a circumference of the gear piece 4. The convex tooth portion 42 is formed on the side. A pressure contact portion 51 extends from the side of the fixed slide block 5, and a pivotal contact hole 52 is provided at an appropriate portion.

At the time of combination, the saddle stem 611 of the saddle 61 is inserted into the sandwiching rod seat 3, and one end of the bolt 2 having the thread 22 is provided with the pivot hole 52 of the fixed slide block 5 and the sandwiching rod seat 3. One end of the bolt 2 which penetrates the through hole 311 and is provided with the joint portion 21 of the bolt 2 is housed in the concave groove 41 of the gear piece 4, and the joint portion 21 and the pivotal hole 311 of the gear piece 4. A nut 23 is screwed onto one end of the bolt 2 corresponding to 411, and the joint 21 of the gear piece 4 and the bolt 2 is placed in the accommodating portion 123 of the quick handle 1 and the bolt 122. Is a fixed cam seat 1 with a quick handle 1.
The quick handle 1 is pivoted on the bolt 2 (see FIG. 4) through the pivot hole 121 of the second gear, the joint portion 21 and the pivot holes 211, 411 of the gear piece 4 to complete the combination.

During use, the lock bolt 141 in the quick handle 1 is combined with the elastic action of the spring 142, the lock bolt 141 is pressed against the convex tooth portion 42 of the gear piece 4, and the holding rod seat 3 presses the saddle stem 611. (FIGS. 6 and 7) to prevent the saddle 61 from being stolen. In addition, by fitting and positioning the fixed slide block 5, the phenomenon of rotation of the bolt 2 at the time of adjustment is prevented, and the fixed slide block 5 also has a function of pressing. Key 1 when adjusting
33, the lock core 13 of the quick handle 1 is released to cause the lock bolt 141 to release the engagement state with the convex tooth portion 42 of the gear piece 4 (FIG. 6), and the quick handle 1
Is pushed backward in the clockwise direction as shown by the arrow in the figure, the sandwiching rod seat 3 is in a relaxed state, that is, the height of the saddle 61 can be adjusted, or the saddle 61 after the vehicle is stopped.
Theft can be prevented.

[0008]

As can be seen from the above, the bicycle saddle antitheft lock structure of the present invention has the effect of reliably preventing the saddle theft and solves the conventional problem of the theft of the saddle. The structure of the present invention is new and novel.

[Brief description of drawings]

FIG. 1 is a view showing a known saddle lock structure.

FIG. 2 is an exploded perspective view of an embodiment of the present invention.

FIG. 3 is a perspective view of a quick handle structure according to an embodiment of the present invention.

FIG. 4 is a combined perspective view of an embodiment of the present invention.

FIG. 5 is an enlarged view of the combination of the embodiments of the present invention.

FIG. 6 is a diagram showing a use operation according to the embodiment of the present invention.

FIG. 7 is a diagram showing a use operation according to the embodiment of the present invention.

FIG. 8 is a diagram showing a use operation according to the embodiment of the present invention.

[Explanation of symbols]

1,300 Quick handle 11 Handle portion 12 Fixed cam seat 122 Bolts 121, 211, 411, 52 Pivoting hole 123 Housing portion 13 Lock core 131 Lock hole 132 Eccentric convex block 133 Key 14 hole 141 Lock bolt 142 Spring 100 Binding ring 2, 200 screw rod 23, 2001 nut 3 clamping rod seat 31 convex ear 311 3002
Through hole 4 Gear piece 41 Recessed groove 42 Convex tooth portion 5 Fixed slide block 51 Pressure contact portion 6 Car body 61,400 Saddle 611,4001 Saddle stem 500 Saddle post 3001 Eccentric cam head

Claims (2)

[Claims] 1. A quick handle, one end of which has two fixed cam seats projecting outwardly, and a pivot hole is formed at an appropriate portion of the fixed cam seats, and is housed between the two fixed cam seats. Part is formed, and the lock core is attached to an appropriate position in the center of the quick handle, and a convex block is provided at one end of the lock core so as to be combined with a hole provided at an appropriate portion of the quick handle. This convex block is used as the above-mentioned quick handle that interlocks with the lock bolt provided with the spring in this hole, and is provided with a screw thread for screwing with a nut at one end, and a ring-shaped joint at the other end. The above-mentioned holding rod sheet, in which the above-mentioned bolt and the holding rod sheet are provided, two convex ears are extended from both sides, and through-holes for passing the bolt are provided in the two convex ears. , A gear piece, a concave groove for accommodating the joint portion of the above-mentioned bolt is provided at an appropriate portion of one side, a pivot hole is provided in the concave groove, and a peripheral side of the gear piece is provided. A fixed slide block having a convex tooth portion formed thereon, a fixed slide block, a pressure contact portion extending on a side, and a pivot hole provided at an appropriate portion; , When the lock bolt of the quick handle is released with the key and the lock bolt is retracted from the convex tooth of the gear piece, pushing the quick handle backward in one direction causes the pinching rod seat to loosen and adjust the saddle height. When the quick handle is pushed in the other direction, the elastic force of the spring is combined with the lock bolt in the accommodating part of the quick handle, and the lock bolt comes into pressure contact with the convex tooth portion on the circumferential side of the gear piece, and the clamping rod seat. Together to tense closure,
A bicycle saddle anti-theft lock structure characterized by receiving the locking positioning of the convex teeth to achieve anti-theft of the saddle. 2. The bicycle saddle anti-theft lock structure according to claim 1, wherein the fixed slide block is fitted and positioned to prevent the rotation phenomenon of the bolt during adjustment.