GB2172046A - Locking arrangement - Google Patents
Locking arrangement Download PDFInfo
- Publication number
- GB2172046A GB2172046A GB08505932A GB8505932A GB2172046A GB 2172046 A GB2172046 A GB 2172046A GB 08505932 A GB08505932 A GB 08505932A GB 8505932 A GB8505932 A GB 8505932A GB 2172046 A GB2172046 A GB 2172046A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bolt
- striker
- striker member
- housing
- locking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C3/00—Fastening devices with bolts moving pivotally or rotatively
- E05C3/12—Fastening devices with bolts moving pivotally or rotatively with latching action
- E05C3/16—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
- E05C3/22—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled
- E05C3/24—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled in the form of a bifurcated member
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
A locking arrangement comprises a lock member having a locking bolt 30, and a striker assembly 28 comprising a housing 32 having an aperture 36 to receive the bolt. A striker member 40 rotatably mounted within the housing has an abutment portion 48 such that upon insertion of the bolt 30 into the housing the bolt 30 engages the abutment portion 48 and turns the striker member 40 from a first position to a second position. The housing also contains a latch member 52 arranged to latch the striker member 40 in the second position automatically upon rotation of the striker member to the second position. The striker member further has a locking portion 49 to engage the bolt 30 when the striker member 40 is in the second position to prevent withdrawal of the bolt from the housing, and the striker assembly further includes means to permit authorised release of the latch member to permit the striker member to be turned to the first position and to permit withdrawal of the bolt from the housing. In one embodiment the locking arrangement is for locking a commercial vehicle roller shutter. <IMAGE>
Description
SPECIFICATION
Locks
This invention relates to a locking arrangement particularly, but not exclusively, for locking a commercial vehicle rolling shutter.
According to the invention, there is provided a locking arrangement comprising a lock member having a locking bolt; and a striker assembly comprising a housing having an aperture to receive the bolt; and a striker member rotatably mounted within the housing and having an abutment portion such that upon insertion of the bolt into the housing the bolt engages the abutment portion and turns the striker member from a first position to a second position, the housing further containing a latch member arranged to latch the striker member in the second position automatically upon rotation of the striker member to the second position, the striker member further having a locking portion to engage the bolt when the striker member is in the second position to prevent withdrawal of the bolt from the housing, and the striker assembly further including means to permit authorised means to permit authorised release of the latch member to permit the striker member to be turned to the first position and to permit withdrawal of the bolt from the housing.
There follows a description, by way of example, of a specific embodiment of the present invention, reference being made to the accompanying drawings, in which:
Figure 1 is a rear view of a lorry having a known locking arrangement for a rolling shutter;
Figure 2 is a rear view of a lorry having a locking arrangement according to the present invention; and
Figure 3 is a perspective view looking to the rear of part of the locking arrangement of
Fig. 2 when demounted from the shutter.
Referring to Fig. 1, a lorry 10 has a rear rolling shutter 12 which can be raised and lowered to open and close the goods carrying space of the lorry. In order to lock the shutter 12 in the closed position the lower slat 14 of the shutter is fitted with a pivoting locking lever 16. One arm 18 of the lever can be engaged beneath a pin 20 projecting from the tailboard 22 of the lorry, and the other arm 24 can be padlocked to an eyelet 26 to hold the lever 16 in the locked position.
The arrangement shown in Fig. 1 is commonly used and suffers from a disadvantage.
In the case of a delivery lorry, the driver can sometimes not be bothered to lock and unlock the shutter at every stop and leaves it unlocked, and thus theft is a problem.
The present invention provides a self-locking arrangement which can be used simply to convert the known arrangement to provide a far more satisfactory locking system.
Referring to Fig. 2, the eyelet 26 is simply replaced by a striker assembly 28, and the end 30 the arm 24 is used as the bolt for the striker assembly.
Referring to Fig. 3, the striker assembly comprises a housing 32 having an open side which is closed when the housing is riveted by holes 34 to the lower slat 14 of the rolling shutter.
A cut-away 36 is provided in the upper side 38 of the housing to receive the bolt 30 of the locking lever 24 when the bolt 30 is moved generally vertically downwardly. A striker member 40 is mounted within the housing on a pivot 42 which projects within the housing from the rear face 44 of the housing. Adjacent the path of the bolt 30 upon insertion into the housing a bite 46 is taken out of the striker member 40 to form an abutment lip 48 and a locking nose 49. On the opposite side of the striker member 40 a notch 50 is formed to receive a latch member 52, which is spring-loaded by a spring 54 into engagement with the striker member 40 and which is mounted on a lock assembly 55. A key can be inserted into an exteriorly accessible key-hole 56 (see Fig. 2) of the lock assembly and turned to pivot the latch member 52 out of engagement with the striker member 40.
In operation, after the shutter 14 has been closed, the locking lever 16 is turned to engage the pin 20 and the bolt 30 is inserted in the striker assembly. The lower end of the bolt 30 engages the abutment lip 48 and forces the striker member 40 to rotate clockwise (as viewed in Fig. 3). The locking nose 49 thus enters a hole 58 in the bolt.
Furthermore, the latch member engages the notch 50 and thus locks the striker member 40, which accordingly, by means of engagement of the nose 49 in the hole 58 of the bolt 30, locks the bolt in the striker assembly.
The latch member 42 is disposed on the opposite side of the housing to the cut-away 36 to prevent the latch being released by insertion of a tool through the cut-away 36.
In order to release the lock, the appropriate key is inserted into the keyhole 56 of the lock assembly 55 and is turned against the spring 54 to release the latch member 52 from the notch 50 in the striker member 40. The striker member 40 is then free to rotate anticlockwise (as seen in Fig. 3) and the bolt 30 can be withdrawn.
The pivot 42 for the striker member 40 is offset from the centre of gravity of the striker member 40 so that the striker member tends to rotate anticlockwise (as seen in Fig. 3).
Thus, if the striker member is inadvertently moved to the latched position without the bolt 30 being inserted, the striker member will, under its own weight, pivot anticlockwise once the latch member is released.
Claims (8)
1. A locking arrangement comprising a lock
member having a locking bolt; and a striker
assembly comprising a housing having an
aperture to receive the bolt; and a striker
member rotatably mounted within the housing
and having an abutment portion such that
upon insertion of the bolt into the housing the
bolt engages the abutment portion and turns
the striker member from a first position to a
second position, the housing further containing
a latch member arranged to latch the striker
member in the second position automatically
upon rotation of the striker member to the
second position, the striker member further
having a locking portion to engage the bolt
when the striker member is in the second po
sition to prevent withdrawal of the bolt from
the housing, and the striker assembly further
including means to permit authorised release
of the latch member to permit the striker
member to be turned to first position and to
permit withdrawal of the bolt from the hous
ing.
2. An arrangement as claimed in Claim 1,
wherein the abutment portion and the locking
portion are provided to one side of the striker
member and the latch member engages to the
other side of the striker member, the striker
member being pivotally mounted between
those two sides of the striker member.
3. An arrangement as claimed in Claim 2,
wherein the bolt is arranged to be inserted
into the housing generally tangentially to the
striker member.
4. An arrangement as claimed in Claim 2
or 3, wherein the pivotal mounting of the
striker member is offset from the centre of
gravity of the striker member such that the
striker member is gravity-biassed towards said
first position.
5. An arrangement as claimed in any pre
ceding claim, wherein the striker member has
a peripheral slot engageable by the latch
member to lock the striker member in said second postion.
6. An arrangement as claimed in any pre
ceding claim, wherein the bolt is formed with
a hole and the locking portion of the striker
member is formed as a nose engageable in
the hole.
7. A vehicle rolling shutter provided with a
locking arrangement as claimed in any preced
ing claim.
8. A vehicle having a rolling shutter as
claimed in Claim 7, wherein the housing is
mounted on the shutter, the bolt being pro
vided at one end of a lever, the other end of
which is engageable with an abutment on the
vehicle when the shutter is closed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08505932A GB2172046A (en) | 1985-03-07 | 1985-03-07 | Locking arrangement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08505932A GB2172046A (en) | 1985-03-07 | 1985-03-07 | Locking arrangement |
Publications (2)
Publication Number | Publication Date |
---|---|
GB8505932D0 GB8505932D0 (en) | 1985-04-11 |
GB2172046A true GB2172046A (en) | 1986-09-10 |
Family
ID=10575609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08505932A Withdrawn GB2172046A (en) | 1985-03-07 | 1985-03-07 | Locking arrangement |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2172046A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2190129A (en) * | 1986-05-01 | 1987-11-11 | Southco | Over centre fastening |
GB2228972A (en) * | 1989-02-23 | 1990-09-12 | Daimler Benz Ag | Rotary-latch lock |
GB2298675A (en) * | 1995-03-09 | 1996-09-11 | Thomas Keith Brown | Security locking device |
US6010168A (en) * | 1995-11-13 | 2000-01-04 | Johnson; James B. | High security rotary latch |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB875345A (en) * | 1959-04-07 | 1961-08-16 | Trico Products Corp | Remotely actuated boot lock arrangements for motor vehicles |
GB1574763A (en) * | 1978-04-27 | 1980-09-10 | Swallow W | Door latching devices |
-
1985
- 1985-03-07 GB GB08505932A patent/GB2172046A/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB875345A (en) * | 1959-04-07 | 1961-08-16 | Trico Products Corp | Remotely actuated boot lock arrangements for motor vehicles |
GB1574763A (en) * | 1978-04-27 | 1980-09-10 | Swallow W | Door latching devices |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2190129A (en) * | 1986-05-01 | 1987-11-11 | Southco | Over centre fastening |
GB2190129B (en) * | 1986-05-01 | 1990-10-17 | Southco | Over centre toggle fastener |
GB2228972A (en) * | 1989-02-23 | 1990-09-12 | Daimler Benz Ag | Rotary-latch lock |
GB2228972B (en) * | 1989-02-23 | 1992-05-27 | Daimler Benz Ag | Rotary-latch lock |
GB2298675A (en) * | 1995-03-09 | 1996-09-11 | Thomas Keith Brown | Security locking device |
US6010168A (en) * | 1995-11-13 | 2000-01-04 | Johnson; James B. | High security rotary latch |
Also Published As
Publication number | Publication date |
---|---|
GB8505932D0 (en) | 1985-04-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |