AU725532B2 - Tubular lockset - Google Patents

Description

P/00/011 28/5/91 Regulation 3.2

AUSTRALIA

Patents Act 1990

ORIGINAL

COMPLETE SPECIFICATION STANDARD PATENT c Name of Applicant: Actual Inventor(s): Taiwan Fu Hsing Industrial Co., Ltd.

Chao-Ming Huang Address for service is: WRAY ASSOCIATES 239 Adelaide Terrace Perth, WA 6000 Attorney code: WR Invention Title: Tubular Lockset o Details of Associated Provisional Application No(s): The following statement is a full description of this invention, including the best method of performing it known to me:- -2- Tubular Lockset Field of the Invention The present invention related to a tubular lockset and, more particularly, to an improved tubular lockset with an adjustable device which is more convenient to assemble on the door.

Description of the Related Art Commonly, tubular locksets are manufactured in either of two sizes, namely and 70mm locks, representing the different distances between an operating aperture and a faceplate of the lock. In order to meet different needs, manufactures have to make two different sizes of tubular locksets, and retailers are obliged to have more space for stocking such tubular locksets, and buyers may be confused in selecting locks unless they have a knowledge of the same.

U. S. Pat. No. 4,767,140, issued August 30, 1988 to Lin, discloses a tubular lock with an adjustable device for two-size setting. Changing the lock into two sizes is accomplished by two different combinations of the U-shaped hole of an inside cylinder with a projected ball of an outside cylinder and the two different combinations of the U-shaped hole of a location tube inside a dead bolt with the teeth of a moving plate. U. S. Pat. No.

4,890,871, issued January 2, 1990 to Lin, discloses a tubular door lock making use of two pairs of motive teeth in a pulling plate for an actuating wheel (two-tooth gear) to selectively mesh with for an motive action. The actuating wheel is confined within a hole cut in a moving shell, which can move outside along the assembling plates and be fixed to keep a hole in it to exactly face against a hole in the assembling plates so as to enable the foot post of the door lock to penetrate through the both holes, whether this lock is adjusted in the short or in the long size.

In these conventional tubular locks with an adjustable device for two-size setting, the actuating wheel fails to be retained in place very well between the assembling plates.

Besides, the structural strength of these conventional tubular locks still can be improved so as to lifetime of the tubular locks.

Summary of the Invention The main object of the present invention is to provide a more convenient and simpler tubular lockset with an adjustable device for setting the dead bolt.

Another object of the present invention is to provide a tubular lockset with an adjustable device in which the actuating wheel is securely retained in place between the assembling plates.

The further object of the present invention is to provide a tubular lockset with an adjustable device of which the structural strength is enhanced.

The tubular lockset according to the present invention mainly comprises a lock case, two assembling plates, an actuating wheel, a fixing plate and a moving shell. The lock case contains a dead bolt therein and has a slot at its bottom for a pulling plate to extend therethrough. The pulling plate comprises two pairs of up-right protrusions for meshing with the teeth of the actuating wheel so as to provide mutual movement. The assembling plates include two plates, wherein the first plate is provided with a pair of extending .15 position members at its end to extend through a slot of the bottom of the lock case in order to hold a spring and the second plate is provided with plate hooks at its end for hooking ooo..i the bottom of the lock case. Each assembling plate has two round holes and an elliptical hole. The elliptical hole is used for restricting the actuating wheel to move in a linear direction. A fixing plate has a hole for the insertion of the actuating wheel. At least o. 0 two bulges are provided at the fixing plate for positioning the actuating wheel such that the actuating wheel can slide more smoothly along the elliptical holes of assembling plates.

The moving shell is provided with two holes for the round circumference of the actuating wheel to go in and to revolve therein.

Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

Brief Description of the Drawings The present invention will now be described in detail with reference to the accompanying drawings wherein; Fig. 1 is an exploded perspective view, partly cut away, of a first embodiment of a tubular lockset with an adjustable device in accordance with the present invention; Fig. 2 is a front view of a first embodiment, in the short size, of a tubular lockset with an adjustable device in accordance with the present invention; Fig. 3 is a perspective top view of a first embodiment, in the short size, of a tubular lockset with an adjustable device in accordance with the present invention; Fig. 4 is a cross-sectional view on line 4-4 of Fig. 3 of a first embodiment, in the short size, of a tubular lockset with an adjustable device in accordance with the present invention; Fig. 5 is a perspective front view of a first embodiment, in the short size, of a tubular lockset with an adjustable device in accordance with the present invention; Fig. 6 is a front view of a first embodiment, in the long size, of a tubular lockset with an adjustable device in accordance with the present invention; Fig. 7 is a perspective top view of a first embodiment, in the long size, of a tubular lockset with an adjustable device in accordance with the present invention; Fig. 8 is a perspective front view of a first embodiment, in the long size, of a tubular lockset with an adjustable device in accordance with the present invention; -Detailed Description of the Invention Referring to Fig. 1, a tubular lockset in accordance with the present invention mainly comprises a lock case 1, two assembling plates 2, an actuating wheel 3, a fixing plate 4 .20 and a moving shell The lock case 1 contains a dead bolt 11 therein and has a slot at its bottom for a pulling plate 12 to extend therethrough. The pulling plate 12 comprises two pairs of upright protrusions 13, 14 for meshing with the teeth 31 of the actuating wheel 3 so as to provide mutual movement.

The actuating wheel 3 have two teeth 31 and an annual flange 32. The actuating wheel 3 further have a square hole 33 at its center for the insertion of the square shaft of the door lock (not shown) The teeth 31 can mesh with the protrusions 13, 14 of the pulling plate 12 to move the pulling plate 12 while the actuating wheel 3 is turning around.

The assembling plates 2 include two plates. The first plate 2 includes a pair of extending position members 21 at its end to extend through a slot of the bottom of the lock case 1 in order to hold a spring 15. The second plate 2 is provided with plate hooks hooking at the bottom of a lock case 1. The first plate 2 includes two pairs of mounting ears 24 and the second plate 2 is provided with two pairs of notches 26 at its edge corresponding to the mounting ears 24 in order to receive the two pairs of mounting ears 24 of the first plate 2. Each assembling plate 2 has holes 22 and an elliptical hole 23.

The elliptical hole 51 is used for restricting the actuating wheel 3 to move in a linear direction. A fixing plate 4 has a hole 41 for the insertion of the actuating wheel 3. At least two bulges 42 are formed thereon for engaging with the annual flange 32 of the actuating wheel 3 so as to force the actuating wheel 3 securely retained in place between the assembling plates 2.

The moving shell 5 is combined lengthwise at the outside of the assembling plates 2 and able to move along the assembling plates 2. Two holes 51 on the moving shell 5 are facing exactly against the holes 22 of the assembling plates 2. The moving shell 5 is 15 provided with two holes 52 for the round circumference of the actuating wheel 3 to go and to revolve therein.

Referring to Fig. 2, 3, 4 and 5 illustrate an embodiment of a tubular lockset with an adjustable device adjusted in the short size. The pulling plate 12 possesses two pairs of up-right protrusions 13 meshing with the teeth 31 of the actuating wheel 3 so as to give 20 mutual movement. Plate hooks 25 hook at the bottom of a lock case 1. The moving shell 5 is combined lengthwise at the outside of the assembling plates 2 and able to move along the assembling plates 2. For this embodiment adjusted in the short size, two holes 51 Son the moving shell 5 are facing exactly against the left hole 22 of the assembling plates 2.

The actuating wheel 3 are positioned at the front of the elliptical hole 23. Additionally, 25 fixing plate 4 keeps the actuating wheel 3 at the front of the elliptical hole 23.

Referring to Fig. 6, 7 and 8 illustrate an embodiment of a tubular lock with an adjustable device adjusted in the long size. The pulling plate 12 possesses two pairs of up-right protrusions 14 meshing with the teeth of the actuating wheel 3 so as to give mutual movement. A pair of protrusions 21 extends through a slot of the bottom of a lock case 1 in order to hold a spring 15. Plate hooks 25 hook at the bottom of a lock case 1.

The moving shell 5 is combined lengthwise at the outside of the assembling plates 2 and -6able to move along the assembling plates 2. For this embodiment adjusted in the long size, two holes 51 on the moving shell 5 are facing exactly against the right hole 22 of the assembling plates 2. The actuating wheel 3 are positioned at the rear of the elliptical hole 23. Additionally, fixing plate 4 keeps the actuating wheel 3 at the rear of the elliptical hole 23.

Although the invention has been described in detail with reference to its presently preferred embodiment, it will be understood by one of ordinary skill in the art that various modifications can be made without departing from the spirit and the scope of the invention, as set forth in the appended claims.

Throughout the specification (including the claims if present), unless the context requires otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated integer or group of integers but not the exclusion of any other integer or group of integers.

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Claims (2)

1. A tubular lockset comprising: a lock case; a dead bolt mounted in the lock case and having a pulling plate with two pairs of upright protrusions; a pair of assembling plates fixed to the lock case and each including an elliptical hole formed therein; an actuating wheel slidably engaging to the elliptical holes of the assembling plates and slideable between the up-right protrusions of the pulling plate; a fixing plate having a hole defined therein for insertion of the actuating wheel and at least two bulges formed thereon for engaging with the annual flange of the actuating wheel so as to force the actuating wheel 15 securely retained in place between the assembling plates; and a a moving shell disposed lengthwise at the outside of the assembling .plates and able to move along the assembling plates, said moving shell 0 be being provided with two holes for the annual flange of said actuating wheel to go and to revolve therein.

2. A tubular lockset substantially as herein described a l* g Dated this Eighth day of August 2000 bt 25 Taiwan Fu Hsing Industrial Co., Ltd o5 Applicant Wray Associates Perth, Western Australia Patent Attorneys for the Applicant