JPH026249A - Locking device for handle for automobile - Google Patents

Abstract

PURPOSE: To provide a steering wheel lock capable of securely operating it with a simple structure by providing an eccentric cam at the tip end of a key switch rotating shaft, engaging it between upper and lower flanges of a bush loosely fitted liftably to a steering wheel shaft, and providing a steering wheel rotation lock member on the upper part of the bush through a rod. CONSTITUTION: An eccentric cam 9 is provided at the tip end of a key switch rotating shaft, and engaged between upper and lower flanges 4 and 5 of a cylindrical bush 3 loosely fitted to a steering wheel shaft 1 so that the cylindrical bush 3 can be raised. A steering wheel rotation lock member 14 is installed on the upper flange 4 of the cylindrical bush 3 through the rod 11, and connected engageably to a notch 26 formed in an upper plug 28 provided at the center part of a steering wheel 10. When not in operation, the cylindrical bush 3 is raised by the eccentric cam 9 so as to lock a steering wheel by engaging the lock member 14 with the notch 26. Thus the entire structure can be simplified, and the lock operation can be performed securely.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application and Problem to be Solved by the Invention] The present invention, which is described in the main part of the present specification and with the aid of the accompanying drawings, relates to a steering wheel locking means for automobiles and trucks. , which is basically constructed to provide an effective anti-theft measure, in which the ignition key simultaneously locks the handle and when the ignition key switch is released, the handle is free. so that when operated, the steering wheel rotates freely, so the car cannot be steered and therefore the car cannot be stolen, and for the user, it is easy to install when in use, and the same Locking or unlocking can be achieved with the ignition key of the ignition key, offering the great benefit of complete certainty in the event of undesired damage or failure, the steering wheel always remaining locked and in the position in which the car is driven. It has been created to be a simple mechanism that is less likely to malfunction, and all this, together with its novel features and performance in practical use, has, as a result of the registration of this patent, granted the Spanish patent holder exclusive rights with respect to its manufacture and sale. This is a sufficient basis for the award to be given.

[Conventional technology]

The technology utilized in various anti-theft mechanisms and devices that have been used up to now is preferably researched to have a current interrupting microswitch at the disturbed location, and the starter has contacts connecting the pre-cut wire. In many cases, these methods were ultimately insufficient as they were discovered by skilled thieves.

[Means to solve the problem]

The device of the invention, which is the subject of this patent, overcomes the above-mentioned difficulties and drawbacks, so that the actuating cylinder of the ignition key switch is provided with a mechanism such that the spider acts as a medium for locking or unlocking the handle. Because it has an eccentric cam that displaces the mechanism in the axial direction,
The actuating ignition key is configured to provide, with its characteristic action, a locking or unlocking mechanism for the handle, and for this purpose the spider has a plurality of bushings formed in the handle which immobilize or unlock the handle. It is adapted to be housed inside the notch.

For a better understanding of the above general characteristics, a drawing is attached, which diagrammatically shows an embodiment of a steering wheel locking device for cars and trucks, and which provides better information. However, the drawings are to be considered in the broadest, non-limiting sense.

〔Example〕

FIG. 1 is an axial assembled sectional view of the mechanism constituting the invention, in which an eccentric cam is mounted on the shaft of the ignition key cylinder, with the internal spider in its lowest position, so that the distal end of the spider is attached to the steering shaft. The handle is connected and secured by fitting into a radial notch formed in the inner bushing that is tightly coupled to the handle.

Figure 2 is a cross-sectional view similar to Figure 1, with the ignition key removed and the ignition key placed in its original position without adjustment relative to the eccentric cam mounted on the cylinder shaft, which is in the highest position due to its eccentricity. in a state. The internal spider is moved upwards and an internal block is tightly coupled to the steering shaft, allowing the steering wheel to rotate freely.

FIG. 3 is an axial cross-sectional view of the device shown in FIGS. 1 and 2, in which an eccentric cam, which is attached to the cylinder shaft without adjustment, is disposed around the steering shaft.

FIG. 5 is a perspective view of the upper closure plug. A hole for a horn switch is provided on both sides, a square member for disassembly is provided in the center, and a neck with a threaded portion protrudes downward.
A radial notch is provided on both sides of the tube to accommodate a spider for internal fixation.

FIG. 6 is a perspective view of the internal fixing spider, which has a hole in the center of the main body for the conductor of the horn, has two arms projecting at opposite positions in the radial direction, and has a hole for the conductor of the horn, and has two arms protruding at opposite positions in the radial direction, and is attached to the cylinder of the ignition key. A hole is provided at the end of said arm such that it can be connected to a lifting rod forming a part movable along an associated eccentric cam.

FIG. 7 shows a bushing having an elongated conical axial hole drilled therein to be assembled with a steering shaft, the attachment being made by nuts and washers, with radial holes in two radially opposite positions. A notch is provided for internal fixation of the spider.

FIG. 8 is a perspective view of the parts moving around the eccentric cam. It is in the form of a spool with two parallel, spaced flanges, with an axial hole with sufficient clearance for the steering shaft to pass through, and is mounted between the upper smaller flanges, with the spool inside and a rising rod attaching a fixed spider, which is kept in its lowest position as shown in FIG. 1 to provide contact and connection with the steering shaft and handle.

FIG. 4 is a plan view of the mechanism without the top closing plug. The internal fastening spider is shown with its ends housed in a radial notch in the external body of the mechanism. In this cutout, the lower cutout extends towards the lower part, in the internal bushing, which tightly engages the steering shaft, in order to obtain internal fixation of the handle, and the flange has a connecting It has a raised rod with a stepped end to which an internal fastening spider is attached and fastened with a nut.

In the accompanying drawings, the steering shaft (1) is surrounded by a bushing (2), a thread-like spool (3) is disposed in the bushing (2), and the reel-shaped member (3) is surrounded by an upper flange (4). ), a lower flange (5), and a cylindrical body (6) in the center, and a steering shaft (1) is loosely fitted into the cylindrical body (6). The bushing (2) is
A joint bushing (7) is provided protruding from the side, and the bushing (7) is a cylindrical body (for ignition and starting of automobiles).
8) is housed therein, and the shaft of the cylindrical body (8) projects inward and is provided with an eccentric cam (9) (Fig. 3). This eccentric cam (9) has a rigid cylindrical body (8) so that the handle (10) can be mechanically locked or unlocked.
) is combined with

This eccentric cam (9) is attached to the upper flange (
4) and the lower flange (5), thereby allowing the spool (3) to move up and down in the axial direction.

Three rods (11) are erected vertically in parallel at radially symmetrical positions on the upper flange (4).
) is the upper block (
12), and its upper end protrudes to form a stepped portion (13).
) fits into a hole (15) drilled in the spider (14) with which the end of the rod (11) is engaged, and the threaded part (16) at the end is not tightened (17 ) and inserted into radial grooves 18 cut in two radially opposite locations in the upper block (12).

The steering shaft (1) has a circular grooved end (19) in its upper part combined with an inner block (20), and a threaded end (21) with a washer (22) and a neck (23). is tightly fastened. As shown in Figs. 1 and 3, this internal block (20) is connected to the eccentric cam (20) when the ignition key switch is turned on.
When the handle (9) is set in a low position, the handle (10)
) is internally locked with the steering shaft (1), thereby forming an extension of the steering shaft (1) with respect to rotational movements. When this eccentric cam (9) is set in the lower position, the spider (14) is inserted into the radial notch (24) in the inner block (20).
and at the same time its end enters the radial groove (18) of the upper block (12) supporting the handle (10), which is rigidly connected to the steering shaft.

To freely rotate the handle (10), turn the ignition key (25) and rotate the eccentric cam (9).

Set it to the highest position as shown in 2, and stop the engine at the same time. In this case the spider (14) has an inner block (20
) in the downward neck (28) of the upper plug (28).
7) into a notch (26) carved in the radial direction. This plug (28) has a threaded portion (29) and is fastened to the upper block (12).
) and is provided with a prismatic protrusion (30) on its upper part so that it can be disassembled with suitable tools for inspection and repair.

The inner block (20) is provided with one or more blind holes (31) into which springs and balls (32) are inserted so as to be able to lock at one point during rotation. The upper block (12) also has a handle (10
) through holes (33
) is provided. This through hole (33) also serves to pass the conductor that operates the horn. Spike-(14
) also passes through the central hole (34) for operating the horn, which passes through a hole in the center of the steering shaft to complete the circuit.

A check spring (
35) is disposed, and this spring (35) pushes the spider (14) upward to release the upper plug (28).
) into the notch 26 of the spider (14).
and the upper plug (28). Along with this,
The spool (3) is placed in the highest position and the spool (3)
The eccentric cam (9) is supported by a lower flange (5) provided at the lower flange (5), which is allowed to rotate freely to reduce friction.

Regarding the component parts for the automobile steering wheel lock device detailed above, there remains the possibility that various parts can be manufactured according to changes in material, size, and shape, and from a practical standpoint, the recommended structure is The above modifications may be incorporated into the above configuration as long as they do not change the essential points targeted by the present invention.

[Brief explanation of the drawing]

FIG. 1 is an assembled sectional view in the axial direction of the embodiment of the present invention with the handle fixed, FIG. 2 is a cross-sectional view similar to FIG. 1 with the handle released, and FIG. A cross-sectional view of the state shown in Fig. 1 taken from a position shifted by 90 degrees, Fig. 4 is a cross-sectional view of the state shown in Fig. 3.
Main part plan view with the upper closing plug removed from the figure, No. 5
The figure shows a perspective view of the upper closure plug, FIG. 6 a perspective view of the internal fastening spider, FIG. 7 a perspective view of the bushing in combination with the steering shaft, and FIG. 8 a perspective view of the spool-shaped flange. 3...Hollow cylindrical bush, 9...Eccentric cam, 10...Hand knob 1/
. 24.26...notch. Procedural amendment (method) % formula % Display of the case 1999 Patent Application No. 39182 Name of the invention Person who amends locking device for automobile steering wheel / 4th day 6, Subject of amendment (1) Power of attorney (2) Details (3) Drawing 7, content of amendment (1) As attached (2) Engraving of the specification (no change in content) (3) Engraving of drawings (no change in content) 8. List of attached documents (1) ) Power of attorney and translation (2) Engraved specifications (3) Engraved drawings (1 each) Address Name: Shizuka Toranomon Building, 8-10 Toranomon-chome, Minato-ku, Tokyo 105 Telephone: 504-0721 Patent Attorney (6579) ) blue
Ki Akira (-′・1 ・ (4 others)

Claims (1)

[Claims] 1. A steering wheel locking device for an automobile, wherein the vehicle ignition key switch has an eccentric cam rigidly connected to the lower end of its rotating shaft, and this cam is axially crossed by the steering wheel shaft. The handle shaft is housed between two encircling parallel flanges forming part of a hollow cylindrical bushing, the handle shaft forming a guide for the upward and downward sliding movement of the actuating bush, the upper circular flange forming part of the two diameter having a plurality of rising rods rigidly joined in directionally opposed positions, these rods perpendicularly within an outer preferably metal block which is rigidly joined to the handle and forms a step reducing its diameter; A handle locking device, comprising a handle shaft for the handle, to which a spider is attached and fixed, and which constitutes a locking means at its lowermost position or an unlocking means at its uppermost position. . 2. includes an inner cylindrical housing housed within the outer block abutting at its lower part an inner rim located within the working outer block, the inner housing having a grooved conical shape for connection and attachment of the handle shaft; the handle shaft has an axial through hole, the threaded end of the handle shaft projects at its upper part for assembly and fixing by means of a nut and washer, and the inner bushing is located at two diametrically opposed positions on its upper periphery; , having a plurality of grooves or notches for accommodating all or part of a locking spider, said locking spider being held rigidly fixed to the vertical mounting rod by a nut, said notches of the inner housing being formed in the outer block; The steering wheel lock for an automobile according to claim 1, characterized in that the steering wheel is tightly joined to the steering wheel shaft through the spider and by the outer block groove and the inner bushing groove. Device. 3. Contains an outer top closure plug which remains screwed into the outer block, the protruding neck of which is accommodated at a greater depth, having a plurality of grooves or notches with the same characteristics as those of the inner bushing; The groove or notch is aligned with the inner bushing so that it is in its highest position when the eccentric cam is actuated to interrupt the ignition circuit, and the spider is received within the notch in the plug and engages the notch in the inner bushing. Claim 1 or 2 characterized in that when the handle is removed, the handle becomes unlocked and the handle can rotate freely.
A steering wheel locking device for automobiles and trucks described in .