FI105542B - Lock for locking a bicycle - Google Patents

Abstract

The invention relates to a lock 3 that can be used for locking a bicycle or the like, having a first body part 8, which can fixed to one leg 1 of the wheel fork, and into which a first cylindrical lock part 5 has been fitted, through openings 13, 14 in which a cylindrical locking arm 4 can move in the longitudinal direction of the arm. Fitted to the second leg 2 of the wheel fork is a second body part 9, in which there is a second cylindrical lock part 6, in which there is an opening 15 for receiving the end 18 of the locking arm in the locking position. In the second lock part 6 there is a lock cylinder 20 and a bolt 21, which is connected thereto and which locks the locking arm 4 or releases it from its locked position. In the locking arm 4, at the end situated on the first body part, there is a section 11 of narrower diameter, which by way of an inclined shoulder 12, connects with the thicker section 10 of the locking arm. Inside the first lock part 5 is a snap arrangement 25, 26 guided by the narrower section 11 of the locking arm, by the inclined shoulder 12 and by the thicker section 10, and which prevents the locking arm 4 from pivoting away from a neutral position, which corresponds largely to the direction of the fork. <IMAGE>

Description

105542

BICYCLE LOCK - LÄS FÖR LÄSNING AV CYKEL

5

The invention relates to a lock for locking a bicycle or the like according to the preamble of claim 1.

Numerous locking devices are known to prevent unauthorized use of the bicycle. 10 Locks that are part of the fixed structure of the wheel and where the only detachable part is the key to the lock have been found to be good for convenience. As bicycle theft is common nowadays and the price of new bicycles is quite high, attention must be paid to the durability of the buckle against breakage. Because the bicycle lock is a mass-15 mass-produced product, its low cost manufacturing capability is important. The manufacture of the lock must be free of laborious work and expensive parts. Because the life cycle of a bicycle can be tens of years, it is necessary that the lock is also mechanically resistant.

Patent application F1 840028 discloses a bicycle lock which is of the same 20 basic types as the invention. The fixed parts of the known lock consist of external parts which can be easily damaged or removed by means of pipe clamps or the like. Except for the free rotation of the lock arm, the operation of the lock and the associated security measures are poorly described. DE 31 39 564 discloses a bicycle lock with a very complex configuration, with a large number of parts which require sophisticated design and installation. EP 530925 discloses a bicycle lock in which the locking arm can be completely detached from the lock. None of these locks corresponds to the purpose of the invention.

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The object of the invention is to provide a lock suitable for locking a bicycle or the like, which is simple to use and which is also easily industrially manufactured and at the same time is as reliable as possible, pit-5 and break-resistant. It is also intended that the locksmith can, if necessary, change the entire combination of the lock without changing the lock.

The object of the invention is achieved as set forth in claim 1. The lock according to the invention is attached to a part of a bicycle or the like which forms a fork extending on both sides of the lockable wheel. In this case, a first lock body piece is attached to the first fork leg and a second body piece is attached to the second leg of the fork. A cylindrical cover part is mounted on both frame members. The first frame member has a cylindrical locking arm, which allows it to move axially, rotate about its longitudinal axis and pivot between a fork-free position in the legs and a locking position between the surfaces of the locking wheel. The second body member and its cover portion have apertures for receiving the lock arm end in a locking position within the second body member where the lock cylinder and its associated bolt 20 lock or unlock the lock arm. The structure is robust, since the body parts and cover parts can be made of steel and the body parts can be welded to the fork legs. The cover portions can be tempered, which substantially strengthens the structure and greatly impedes breaking operations.

• · · I · «* · · * · ·: 25 Inside the first frame piece, the locking arm has a thinner diameter and a thicker area with an inclined shoulder. These parts of the lock arm affect the latch arrangement which, when in free position, prevents it from turning * * * '···' between the surfaces of the locking wheel. This is important because such a • V lock arm movement could cause a serious accident when the bicycle wheel 30 suddenly locks. Also, the bicycle and the lock could be damaged as the locking arm unintentionally turned between the surfaces of the wheel.

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If the latch arrangement includes a spring-loaded bogie located in the cavity of the inner member of the first body member, which extends to the insole of said body member with a barrier to prevent the locking arm from rotating, the latch assembly becomes simple and reliable in operation. Even when manufactured industrially, such parts are reasonably accurate and inexpensive.

If the inclined shoulder of the lock arm and the thicker arm region extending therewith are arranged to displace the latch assembly axle by the action of the barrier 10, when the thicker arm of the lock arm is pulled over the latch assembly, the structure is mechanically reliable and secure. For the lock wearer, the release action is simple because the lock lever only needs to be pulled from the operating knob to its end position and then turned.

15 It is recommended that, as a result of a compression spring inside the second frame member, the lock arm protrudes out of the other frame member when the lock cylinder is rotated to the lock lever release position. In this way, the desired smooth and unrestrained action when the lock is released is achieved by the force acting on the end of the lock arm. However, the structure is simple and inexpensive to manufacture.

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: If the aforesaid compression spring acts on the end of the locking arm via the pushing sleeve · * ·. it, the bushing and the space provided on it can be shaped as shoulders, «·« that the shoulders restrict the free movement of the bushing when the locking arm is absent::: 25 from the locking position. Then, no detachable parts are formed in the structure.

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It is recommended that the first and second body members be provided with internal members arranged in spaces for lock actuators. In this case, the actuators are protected and each in its own position, so that the structure can be easily assembled at the factory. If the inserts are made of plastic or similar, the insertion of 105542 inserts is simple and inexpensive, and the result is dimensionally accurate. No corrosion occurs either.

It is recommended that the first body member has a return spring which pivots the pivot to a non-locking end position. If the compression spring is provided with a space on the outer surface of the inner member of the first frame member, the spring installation is simple during installation. Such a spring is a cheap component and functions reliably.

10 It is recommended that the bracket on the lock cylinder and the end of the lock arm are provided with inclined surfaces for locking the lock without a key. In this case, the lock can be locked so that the end of the lock arm forces the lock to move against the spring due to the inclined surface of the lock and locking occurs without a key, which improves the lock's comfort.

15

It is recommended that the second cover section be mechanically secured, preferably by a pin. This is a safe and easy way to lock the parts together for good security. However, it is possible to drill the pin, for example, if the lock cylinder is to be changed ... 20 to another.

<«« * I 1. '. j It is recommended to have a knob or similar at the end of the first body of the lock arm. In this case, the use of the lock does not require a great deal of finger force and, at the same time, the release of the lock arm can be prevented when the lock is in the unlocked position.

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It is recommended that the second folder has a hole for the latch arm, which is larger than the corresponding hole in the second body member for the latch arm, and that the latch arm has a shoulder that restricts the movement of the latch arm to the other 30 body member. . In this case, tapping or similar operation to actuate the lock box 105542 is thus almost impossible due to the stepwise blocking structure.

The invention will now be described in more detail with reference to the accompanying drawing, in which Fig. 1 shows a lock according to the invention mounted on the bicycle's fork legs and locked, Fig. 2 shows the lock of Fig. 1 in section A-A, Fig. 3 A, 10 but with the locking arm axially displaced from the locking position, Fig. 4 shows a lock according to Fig. 1 in the open position, Fig. 5 shows a top view of the lock leg of the lock of Fig. 4, Fig. 6 shows a locking half of Fig. 5 Figure 6 shows the locking half of section 6 in section D-D, Figure 8 shows the locking half of figure 6 in section E-E, 20 - Figure 9 shows the locking half of figure 5 in section I f. !!!: FF, - Figure 10 Figure 9 cut in half direction =: ··; Fig. 11 shows the locking half of Fig. 10 in sectional direction H - H and Fig. 12 shows the locking half of Fig. 4 mounted in one leg of the fork K - K.

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: V In the drawing, 1 represents the first foot of the bicycle fork and 2 its' ··· * 30 second feet. The fork legs 1 and 2 are fitted with a lock according to the invention • · ·: 3, which includes a locking arm 4, shorter in the middle region in the figure, the first body 8 and its cover part 5 and the second body 9 and its cover part 6. There is an operating knob at the rear end of the lock arm 7. The locking wheel rim with tires or spokes or other bicycle parts are not shown.

5 The body parts 8 and 9 are welded to the forks 1 and 2 of the fork, but welding is recommended, although other methods of attachment are conceivable. The first body member 8 and the second body member 9 are cup-shaped, as well as the first body member 5 and the second body member 6. The cover members 5 and 6 and the body members 8 and 9 are sized such that said body members 10 fit almost completely within said cover members. Cover parts 5 and 6 should be hardened.

The locking arm 4 has a thicker central region 10 and a thinner rear end region 11. Between these is an inclined shoulder 12, which may be in the form of a truncated circular cone. 15 The first cover part 5 has a circular hole 13 where the area 11 of the locking arm 4 can move back and forth and rotate therein. With respect to the hole 13 of the first carrier portion 5, on the opposite side of the lid portion 5 there is a circular hole 14, where the middle region 10 of the locking arm can move back and forth and also rotate. Since the hole 13 is smaller in diameter than the central arm region 10 of the locking arm and a t nup knob 7 larger than the hole 13 is attached to the end of the locking arm, the locking arm will in no case be released from the lock.

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The cylindrical side of the second body member 9 has a circular hole 15 for inserting the end 16 of the locking rod ··· v to the locking point. There is a conical point 17 near the end of the lock arm 16, which has a shorter cylindrical area 18 which is smaller than the diameter of the central area 10 of the lock arm. There is a locking groove 19 in the area 18 · · · • * * johon which is engaged by the lock 21 acting on the lock cylinder 20 by the action of the spring 22. The shaft 21 has an inclined surface 23 of the locking arm 4 in which the conical point 17 of the locking arm 4 contacts the locking arm 4 as it is pushed into the locking position. In this case, the latch 21 gives way under tension • «* v: compression spring 22. As the latch arm 4 is pushed further, the latch 21 engages in the locking groove 19. The second locking half is held together by a pin 41 which connects the second cover part 6, the second body member 9 and the second inner part 24b therein into a stationary assembly.

5, the end 16 of the lock arm 4 has moved away from the lock position so that the lock arm is completely outside the second cover part 6. This situation is achieved by turning the lock cylinder 20 in the opening position with the key (not shown). At the end of the lock cylinder 20 is an eccentrically movable pin 29, which moves in a hole made in the bolt 21. The rotation of the key causes the shaft 10 21 to move away from the locking groove 19 while the compression spring 22 is tensioned, whereby the pushing sleeve 30, by the action of the compression spring 31, pushes the end 16 of the lock arm 4 some distance. The pushing sleeve 30 can only travel a limited distance, because the step 32 on the outer surface of said sleeve collides with an obstruction point in the hole 34. This design prevents the push-in sleeve and springs from being removed from position 15. The shoulder 12 of the lock arm 4 is shown near the latch plate 25. As the latch 7 is pulled from the knob 7, the latch plate 25 still starts to move due to the inclination of the latch 12 and the spring 26 is compressed. As the knob 7 is pulled in, the latch plate 25 moves past the shoulder 12 and begins to touch the thick point 10 of the latch arm. The effect of the displacement movement of the latch plate 25 is explained in the description of Figures 10 and 20 11. The first body member 8 has a first inner member 24a, which is provided with not only a space for running the lock arm 4, but also a latch plate 25 with springs 26 and a space 27 for a return spring 28. The inner members 24a and 24b are good:

In Fig. 4, the lock 3 is shown in the neutral position allowing the bicycle to be used.

The end of the locking arm 4 points downward and the knob 7 is pushed as far downward as possible, although the locking arm 4 moves downward even under the influence of the earth's gravity.

The rotation of the lock arm 4 by about 90 degrees is explained in the description of Figure 6.

Fig. 5 shows that the knob 7 in the free position of the locking arm 4 is close to the claw ν ': the first leg 1 of the lug, but still conveniently accessible.

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Figure 6 shows how the locking arm 4 can rotate about 90 degrees from the vertical to the horizontal position. The first body member 8 has pivoting openings 35 and 36 which are dimensioned such that the thinner region 11 of the lock arm can pass through the pivot opening 35 and the thick middle region 10 of the lock arm accommodates about 90 degrees of pivoting. The pivot openings are arranged symmetrically with each other on opposite sides of the body member 8. The locking arm 4 can rotate freely about its own axis in any position. Thus, rotation of the lock arm does not break the lock, but it does not open the lock-10 as well, and therefore the structure is well protected in this respect as well.

Figure 7 shows the position 11 of the locking arm 4 and the pivot opening 35.

Fig. 8 shows the state 27 of the return spring 28 which is in the circumferential region of the first inner member 15a. The first body member 8 also has a mating surface of the 28 ends of the return spring.

Figure 9 shows the location of the return spring 28 in space 27. As the locking lever 4 is pivoted from the knob 7, the end surface of the space 27 begins to tension the compression spring 28; 20 against the counter surface of the first body member 8. Since the circumferential direction of space 27 is <I · ·; ·; This length corresponds to a rotation angle of about 180 degrees, turning the locking arm 4: * · [about 90 degrees compresses the spring 28 to about half the length of the spring.

Figure 10 shows the structure of the latch plate 25. The spring 26 pushes the latch plate 25 against the region 11 of the latch arm 4. The tip portion 37 of the latch plate 25 extends to the insole of the first body member 8 with a raised fixed barrier point. The tip portion 37 moves in a circular area. The locking arm 4 is rotated while the barrier 38 is inclined in one direction so that the tip portion 37 of the latch plate 25 is slidable in the other direction along the inclined surface of the barrier. After passing barrier 38, tip 37 clicks spring 26 • · ·: as a result of behind barrier 38 in a locked position with tip M »• ·

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· · · 9 105542 37 is pressed against the insole of the first body member 8 by the force of the spring 26. Thus, the locking lever 4 reliably stays upright and in no way gets between the wheel surfaces. It should be noted that, after unlocking with the lock key, the above-described operation of the latch plate will automatically occur when the latch arm 4 is rotated about 90 degrees.

Figure 11 shows an obstacle position 38 and an area 39 where the tip portion 37 of the latch plate moves. The height of the barrier 38 is about 1 ... 3 mm.

Figure 12 shows how the bolt 21 has moved to its locking position by the action of the spring 22. The pin 29 of the lock cylinder 20 is located in the opening 40 of the shaft 21, which is shaped and dimensioned so that the spring 21 always reaches its locking position by the action of the spring 22 unless it is forced out of this position by rotating the lock cylinder 20 with a key. The end of the pushing sleeve 30 is also shown.

15

The invention is not limited to the embodiments shown, but many variations thereof are conceivable within the scope of the appended claims.

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Claims (11)

1. For reading a bicycle or corresponding useful load (3) with a first body part (8) attachable to one leg (1) of a wheel fork, to which a first cylindrical lid part (5) has been inserted, through the openings (13,14 ) a cylindrical reading arm (4) can move in the longitudinal direction of the arm, and a second body part (9) attachable in the second leg (2) of the wheel fork, in which there is a cylindrical second lid part (6), in which there is an opening (15) for inserting the reading arm end (18) into the reading position into said second lid portion (6), in which a reading cylinder (20) and a reading piston (21) connected to the laser arm (4) respectively detach it from the its reading, characterized in that the laser arm (4) at the end which is located at the first body part has a diametrically thinner section (11), which, via a slanted shoulder (12), joins the thicker section (10) of the reading arm and one inside the first snap member (5) existing snap device (25, 26), so m is guided from the thinner section (11) and from the inclined shoulder 20 (12) and from the thicker section (10) and which prevents the reading arm (4) from pivoting away from a position which closely corresponds to the direction of the first fork. shank (1). * m m * · · 2. Read according to claim 1, characterized in that the snap device comprises a spring-loaded piston (25) located in a hollow in the inner part (24a) of the first body part, which extends to the inner bottom of said body part, at which a locking section (38) is provided for preventing the swing of the reader arm (4). : 30 3. Read according to claim 2, characterized in that the thicker arm portion (10) of the reading arm (12) and the thinner arm portion (10) thereto is arranged as follows. In that they move the piston (25) of the snap device away from the influence of the locking section (38), the thicker section (10) of the reader arm is pulled to the position of the snap device (25). 4. Welding according to any of the preceding claims, characterized in that in the interior of the second body part (9) there is a compression spring (31) which impacts the end of the laser arm (4), so that the reading arm (4), in the reading cylinder (20) does not -read position, pushed out of the second body part (9). 5. Welding according to claim 4, characterized in that the compression spring (31) pushes the end of the laser arm via a pressure sleeve (30). 6. Weld according to any of the preceding claims, characterized in that inside the first part (15a, 24b) in which the reading element is provided is arranged within the first body part (24a, 24b). 7. A load according to any of the preceding claims, characterized in that in the first body part (8) there is a return spring (28) which strives to swing the reading arm (4) to a non-reading end position. 20 8. Read according to some of the above claims, characterized in that oblique surfaces (23,17) are provided in the reading piston (21) connected to the reading cylinder (20) and correspondingly at the end of the reading arm (18). making reading the reading without a key. 25 9. Read according to some of the above claims, characterized in that the retention of the second lid part (6) in its position relative to the second body part (9) is mechanically secured, preferably with a pin (41). 14 105542 10. Read according to some of the above claims, characterized in that in the end of the reading arm (4) at the end of the first body part there is a knob (7) or equivalent. 5 11. Read according to any of the above claims, characterized in that in the second lid part (6) there is a shark (15) for the reading arm, which has a larger diameter than the corresponding shark for the reading arm in the second body part (9) and that the arm (4) has a shoulder dimensioned to limit the insertion of the reading arm into the second body part (9). • »• * • m • m • · · · <o« · t m • · »• · · · · m • · · m m 9 m mmm mmm m m« «« · • · ·