IE65335B1 - A lock device and clasp - Google Patents

Description

The present invention relates a lock device and the invention also relates to a clasp comprising the lock device.

Where it is desired to lock a pair of members together, for example, a closure member such as a door to a door frame, it is common to use a bolt type clasp. In general, such bolt type clasps comprise a bolt member which is slidably mounted on a mounting member. The mounting member is generally mounted on the door and the bolt member is slidable longitudinally on the mounting member for releasably engaging a receiver mounted on the door frame. In general, provision is made for enabling the bolt member to be locked relative to the mounting member when the bolt member engages the receiver in the door frame. A padlock is required to lock the bolt member and mounting members relative to each other. Such padlocks normally comprise a body member and a U-shaped shackle member slidable into the body member to a locked position. Unfortunately, such padlocks suffer from a major disadvantage in that they may be readily easily opened by an unauthorised person, for example, the shackle member can relatively easily be severed by a hacksaw, wire cutter or the like, thereby permitting the bolt member to be disengaged from the receiver. Furthermore, because of the construction of the shackle member of the padlock, it is generally relatively easy to jemmy the shackle member open relative to the body member of the padlock, similarly facilitating disengagement of the bolt member from the receiver. No suitable satisfactory devices have been provided for securing a bolt member relative to a mounting member of a bolt type clasp. Indeed, there is also a need for a lock device which secures one member relative to another member. For example, there is a need for a lock device for securing a security barrier of the type which comprises an elongated horizontal barrier member supported between a pair spaced apart upstanding members, namely a mounting member and a receiving member. In such security barriers, the barrier member is generally slidably mounted on the mounting member, and is slidable from an open position disengaged from the receiving member to a closed position engaged with the receiving member. In practice, the horizontal barrier member is secured to the receiving member by a padlock, however, as a described above, such padlocks can readily easily be opened.

British Patent Specification No. 2,058,196A discloses a lock device for a casket, wherein the lock device secures a hinged lid of a casket to the body portion of the casket. A padlock slidably mounted in the lid carries a latch pin which is engagable with a catch member mounted on the body portion of the casket for securing the lid to the body portion. The padlock is of the type comprising a body member and a U-shaped shackle member slidable into the body member from an unlocked to a locked position. A block member mounted on the lid defines an elongated bore which slidably accommodates the body member of the padlock. The shackle member of the padlock is fixedly mounted to the lid. A latch pin is mounted onto the face of the body member of the padlock into which the shackle member is slidable. On the lid being pivoted into the closed position closing the casket, the body member of the padlock may be slid into the bore of the block member so that the latch pin extending from the padlock body engages the catch member on the casket body portion and the shackle member is locked in the padlock body. By releasing the shackle member from the padlock body, the padlock body slides outwardly of the bore in the block member and the latch pin disengages the catch member, thereby permitting opening of the lid of the casket.

This lock device suffers from a number of serious disadvantages. Firstly, by virtue of the fact that a latch pin has to be mounted onto the body member of the padlock, considerable damage may result to the padlock on the latch pin being secured to the padlock body.

For example, where the latch pin is welded to the padlock body, distortion of the body and the lock mechanism in the body can occur. Even if damage does not occur to the padlock body, where the latch pin is welded to the padlock body, the latch pin can readily easily be fractured from the padlock body by jemmying the lid of the casket relative to the casket body portion.

Even where the latch pin and padlock body are to be formed integrally during manufacture of the padlock, it is believed that the latch pin could readily easily be fractured from the padlock body by jemmying.

A further disadvantage of the lock device of British Patent Specification No. 2,058,196A relates to the cost of producing such a device. By virtue of the fact that a latch pin has to be secured to the body member, either the padlock has to be modified after manufacture, thus leading to relatively high costs, or alternatively, a special purpose padlock body has to be produced during manufacture of the padlock also leading to significant extra manufacturing costs.

There is therefore a need for a lock device which overcomes the problems of known lock devices. Furthermore, there is a need for a clasp which comprises such a lock device. There is also a need for a security barrier which comprises such a lock device.

The present invention is directed towards providing such a lock device, a clasp and a security barrier.

According to the invention, there is provided a lock device for securing a pair of members together, the lock device comprising: a catch means mounted on one of said members, a housing mounted on the other of said members, the housing defining a hollow interior region for receiving the catch means, and having a catch means accommodating opening for accommodating entry of the catch means into the housing, a padlock carrier member slidably mounted in the interior region of the housing and movable in the housing from an unlocked position to a locked position, latch means extending from the padlock carrier member for co-operating with the catch means for releasably retaining the catch means in the housing, the latch means retaining the catch means in the housing on the padlock carrier member being in the locked position, a padlock comprising a body means, and a shackle means, movable relative to the body means from an unlocked to a locked position, one of said means being fixedly mounted on the padlock carrier member and the other of said means being fixedly mounted to the housing so that as the means are moved from the unlocked to the locked positions, the padlock carrier member is moved from one of its said locked and unlocked positions to the other of said positions.

In one embodiment of the invention, the padlock carrier member is retained in the locked position by the padlock when the body and shackle means of the padlock are in the locked position.

In another embodiment of the invention, the body means of the padlock is fixedly mounted on the padlock carrier member.

Preferably, the catch means comprises a catch member engagable with the latch means, the catch member being mounted on a spigot extending from the one of said members. Advantageously, the catch member comprises a disc extending transversely of the spigot, the area of the disc being greater than the transverse cross sectional area of the spigot.

Advantageously, the latch means comprises a latch member, the latch member being movable towards the spigot into the locked position in a generally transverse direction relative to the spigot.

Preferably, a spigot accommodating slot extends into the latch member from a free edge thereof, the spigot accommodating slot being defined by a pair of lugs extending from the latch member, and engagable with the spigot to prevent lateral movement of the housing relative to the spigot.

In one embodiment of the invention, the shackle means of the padlock comprises a U-shaped member and the body means comprises a body member, the U-shaped shackle member being slidable inwardly into the body member to the locked position.

Advantageously, the padlock carrier member comprises a base member, a pair of side members extending upwardly from the base member to engage corresponding side edges of the body member of the padlock, and front and rear end members extending upwardly from the base member for engaging front and rear end edges of the body member of the padlock, the padlock carrier member being slidable from the unlocked to the locked position longitudinally relative to the direction of motion of the shackle member to the body member, and transversely relative to the spigot. Preferably, the latch member extends from the base member outwardly of the front end member of the padlock carrier member.

In a still further embodiment of the invention, the housing comprises an elongated hollow member defining a hollow interior region of rectangular cross section, the mounting block being mounted at one end of the housing and the padlock carrier member being slidable in the hollow interior region of the housing at the other end thereof, and the catch means accommodating opening being provided in the housing intermediate the mounting block and the padlock carrier member.

Additionally, the invention provides a clasp comprising a mounting member, an elongated bolt member mounted on the mounting member and being axially slidable on the mounting member from an unlocked position to a locked position, and a lock device according to the invention mounted on the clasp for securing the bolt member in one of said locked and unlocked positions relative to the mounting member, the catch means of the lock device being mounted on one of said bolt and mounting members, and the housing being mounted on the other of said members. Preferably, the housing of the lock device is mounted on the bolt member and extends sidewardly therefrom. Advantageously, the bolt member is pivotal relative to the mounting member about the longitudinal axis of the bolt member from a position with the catch means in the interior region of the housing to a position with the catch means withdrawn from the interior region of the housing.

In one embodiment of the invention, a catch means support member extends from the mounting member sidewardly relative to the bolt member, the housing being pivotal towards and away from the catch means support member on pivoting of the bolt member.

Preferably, a protective member extends from the catch means support member to embrace portion of the housing to prevent jemmying of the housing away from the catch means support member.

In another embodiment of the invention, an engagement member extends sidewardly from the bolt member for engaging a receiver for the bolt member on a side of the receiver remote from the mounting member.

Additionally, the invention provides a security barrier comprising an upstanding support member and an upstanding receiving member spaced apart from the support member, and an elongated barrier member mounted on the support member and movable from an open position disengaged from the receiving member to a closed position engaged with the receiving member, and a lock device according to the invention for locking the barrier member to the receiving member or support member, the catch means of the lock device being mounted on one of said barrier and receiving or support members and the housing of the lock device being mounted on the other of said barrier and receiving or support members .

The invention will be more clearly understood from the following description of a preferred embodiment thereof, given by way of example only, with reference to the accompanying drawings, in which: Fig. 1 is a front elevational view of a clasp according to the invention comprising a locking device also according to the invention, Fig. 2 is a plan view of the clasp of Fig. 1, Fig. is an end view of the clasp of Fig. 1, Fig. 4 is a sectional elevational view of the clasp of Fig. 1 on the lines IV-IV of Fig. 2, Fig Fig is a sectional end view of the clasp of 1 on the line V-V of Fig. 1, Fig. 6 is a sectional elevational view of portion of the clasp of Fig. 1 on the line IV-IV of Fig. 2 Fig showing the lock device in a different position, Fig. 7 is an exploded perspective view of the clasp of Fig. 1, Fig. 8 is a perspective view of the clasp of Fig. 5 1 in use, Fig. 9 is a perspective view of the clasp of Fig. 1 in use in a different position, Fig. 10 is a perspective view of a clasp according to another embodiment of the invention in use, Fig. 11 is a perspective view of the clasp of Fig. in use in a different position, Fig Fig Fig Fig is an end elevational view of the clasp of 10, is an end elevational view of the clasp of 10 in a different position, Fig. 14 is a clasp of Fig perspective view of a 10, detail of the Fig. 15 is a perspective view of a security barrier also according to the invention comprising a lock device according to the invention, Fig. 16 is a perspective view of the securitybarrier of Fig. 15 in a different position, Fig. 17 is a perspective view of a detail of the security barrier of Fig. 15 illustrating the lock device according to the invention, and Fig. 18 is a sectional elevational view of portion of the security barrier of Fig. 15.

Referring to the drawings, and initially to Figs. 1 to 9, there is illustrated a clasp according to the invention, in this case a bolt type clasp indicated generally by the reference numeral 1 for securing a closure member to a frame, for example, for securing a door to a frame. Portion of the door 2 and portion of the frame 3 are illustrated in Figs. 8 and 9. The clasp 1 comprises a mounting member, namely a mounting plate 6 of steel for mounting on the door 2. An elongated bolt member 7 of circular cross section, hardened steel material having ends 8 and 9 is slidably mounted on the mounting plate 6. Eye brackets 10 and 11 of steel welded to the mounting plate 6 having bores 13 of circular cross section and of diameter substantially similar to that of the bolt member 7 slidably and pivotally mount the bolt member 7 on the mounting plate 6. The bolt member 7 is axially slidable in the direction of the arrow A from an unlocked position illustrated in Fig. 8 with the end 8 disengaged from a receiver 12 mounted on the frame 3, to a locked position illustrated in Fig. 9 with the end 8 of the bolt member 7 engaging the receiver 12.

A lock device also according to the invention and indicated generally by the reference numeral 15 is mounted on the clasp 1 for securing the bolt member 7 to the plate member 6 in the locked position. The lock device 15 comprises a housing 17 formed by an elongated hollow tubular member of steel of rectangular cross section which is welded to and extends sidewardly from the bolt member 7. The housing 17 as well as forming part of the lock device 15 also forms a handle by which the bolt 7 may be shot from the unlocked to the locked position and vice versa. The housing 17 comprises a top wall 18, a bottom wall 19 joined by side walls 20 which together define a hollow interior region 21. One end 22 of the housing 17 is open while the other end is closed by a mounting block 23 of steel which forms a tight fit in the interior region 21 of the housing 17, and which is also welded to the bolt member 7. The housing 17 when the bolt member 7 is in the locked position is aligned with a catch means support member, namely a support plate 24 of steel which extends from and is formed integrally with the mounting plate 6, see Figs. 1 to 4. Catch means comprising a catch member 25 formed by an annular disc of steel extending around and formed integrally with a spigot 27 of steel extending upwardly from the catch means support plate 24 engages the interior region 21 of the housing 17. A catch means accommodating opening 28 formed in the bottom wall 19 of the housing 17 accommodates the passage of the catch member 25 into the interior region 21 as the housing 17 is pivoted into abutment engagement with the support plate 24 on pivoting of the bolt member 7 in the direction of the arrow B, see Fig. 9. The catch means accommodating opening also engages the spigot 27 to prevent lateral movement of the housing 17 relative to the spigot 27.

A padlock carrier member 30 for carrying a padlock 31 as will be described below is slidably mounted in the interior region 21 of the housing 17 towards the open end 22. The padlock carrier member 30 is slidable longitudinally in the housing 17 and transversely relative to the spigot 27 in the direction of the arrows C and D. The padlock carrier member is of steel and comprises a base plate 32 having side walls 33 and front and rear end walls 34 and 35, respectively, extending therefrom. Latch means comprising a latch member 36 of steel plate extends from and is formed integrally with the base plate 32 of the padlock carrier member 30 for co-operating with the spigot 27 and catch member 25 for releasably retaining the catch member 25 in the interior region 21. A spigot accommodating slot 37 extends into the latch member 36 and defines a pair of lugs 38 which embrace the spigot 27 for preventing lateral movement of the housing 17 relative to the spigot 27. The width of the spigot accommodating slot 37 is substantially similar to the diameter of the spigot 27. The padlock carrier member 30 is slidable in the interior region 21 in the direction of the arrow C from an unlocked position illustrated in Figs. 4 and 5 to a locked position as illustrated in Fig. 6. In the unlocked position, the carrier member is disposed towards the open end 22 of the housing 7 and the latch member 36 completely clears the catch member 25 to permit the catch member 25 to be entered into and released from the interior region 21 of the housing 17. In the locked position illustrated in Fig. 6 the padlock carrier member 30 is disposed away from the open end 22 of the housing 17 towards the catch means accommodating opening 28 and the lugs 38 extend on each side of the spigot 27 so that the latch member 36 abuts the catch member 25 to prevent the catch member 25 being withdrawn from the housing 17, thereby retaining the housing 17 in abutment engagement with the support plate 24.

The padlock 31 comprises a body means, namely a body member 40 and a shackle means, namely a U-shaped shackle member 42 which comprises a pair of side arms 43 and 44 joined by a curved portion 45. The shackle member 42 is slidable in the body member 40 from an unlocked position illustrated in Figs. 4 and 5 with the side arm 44 disengaged from the body member 40 to a locked position illustrated in Fig. 6 with the side arms 43 and 44 engaged in the body member 40. A key operated barrel lock 46 is mounted in the body member and extends in from a rear face 47 of the body member 40 for locking the shackle member 42 in the locked position. The body member 40 is mounted on the padlock carrier member 30 and is fixedly retained therein by the side walls 33 which engage side faces 48 of the body member 40 and the front and rear end walls 34 and 35 which engage a front face 49 and the rear face 47, respectively, of the body member 40. A key accommodating aperture 41 in the rear wall 35 provides access to the barrel lock 46. The base plate 32 of the padlock carrier member 30 and the top wall 18 of the housing 17 co-operate to retain the padlock body 40 on the padlock carrier member 30. The shackle member 42 is fixedly mounted in the housing 17 in a shackle accommodating recess 50 formed in the mounting block 23. A pin 51 extending through the bottom wall 19 of the housing 17 and the mounting block 23 extends across the recess 15 for retaining the shackle member 42 captive in the recess 50. Accordingly, with the shackle member 42 fixedly retained in the housing 17 movement of the body member 40 of the padlock 31 in the direction of the arrow C from the unlocked to the locked position moves the padlock carrier member 30 and in turn the latch member 36 into the locked position to engage and retain the catch member 25 in the housing 17. Accordingly, with the padlock 31 locked the latch member 36 is locked in engagement with the catch member 25. Movement of the body member 40 of the padlock 31 in the reverse direction, namely the direction of the arrow D into the unlocked position moves the padlock carrier member 30 and the latch member 36 into the unlocked position, thus disengaging the catch member .

As can be seen, the catch means accommodating opening 28 in the housing 17 is disposed between the padlock carrier member 30 and the mounting block 23.

A protective means to prevent jemmying of the housing 17 away from the support plate 24 comprises a protective member 52 of steel extending from the support plate 24 which extends along the side walls 20 and the open end 22 of the housing 17 thereby embracing the housing 17 to prevent a jemmy being inserted between the housing 17 and the support plate 24.

The bolt member 7 at the end 9 carries a plug 54 of hardened steel. A spigot 55 extending from the plug 54 engages a bore 58 co-axial with the bolt member 7. The plug member 54 is engaged in the bolt member 7 after the bolt member 7 has been assembled in the eye brackets 10 and 11 for retaining the bolt member 7 in the eye brackets. The bore 13 in the eye bracket 10 is countersunk at 59 and 60 at respective ends of the bore 13 to facilitate assembly of the bolt member 7 onto the mounting plate 6. During assembly of the bolt member 7 to the mounting plate 6, the bolt member 7 with the housing 17 welded thereto is assembled so that the end of the bolt member 7 is passed through the eye bracket 10 at an angle to the axis of the bore 13. The bolt member 7 is accommodated at an angle to the axis of the bore 13 by the countersunk ends 59 and 60 so that the bolt member 7 passes on the outside of the eye bracket 11. On the bolt member 7 being positioned with the housing 17 abutting the eye bracket 10 and the end of the bolt member clearing the eye bracket 11, the bolt member 7 is aligned with the bore 13 of the eye bracket 11 and passed therethrough. The plug member 54 is then pressed onto the end 9 of the bolt member 7, thereby extending the length of the bolt member 7 at the end 9 to prevent removal of the bolt member 7 from the eye bracket 11 and in turn the mounting plate 6.

Countersunk screw accommodating holes 61 in the mounting plate 6 and the support plate 24 accommodate screws 62 for securing the mounting plate 6 to the door 2.

In use, with the mounting plate 6 mounted on a door 2 and the receiver 12 mounted on the frame 3 the bolt member 7 is shot in the direction of the arrow A from the unlocked position illustrated in Fig. 8 into the locked position illustrated in Fig. 9 whereby the end 8 of the bolt member 7 engages the receiver 12. While the bolt member 7 is being axially shot from the locked to the unlocked position, the bolt member 7 is also pivoted in the direction of the arrow E so that the housing 17 is pivoted outwardly relative to the support plate 24 and the housing 17 clears the catch member 25. On the bolt member 7 being shot into the locked position and with the catch member 25 aligned with the catch means accommodating opening 28 in the housing 17, the bolt member 7 is pivoted in the direction of the arrow B, thereby pivoting the housing 17 in the direction of the arrow B until the housing 17 abuts the support plate 24 with the catch member 25 engaged in the catch means accommodating opening 26. The padlock carrier member 30 is then pushed in the direction of the arrow C by the thumb or a finger so that the lugs 38 of the latch member 36 engage around the spigot 27 and the padlock 31 is moved into the locked position. Thus, the latch member 36 is locked in the locked position and prevents disengagement of the catch member 35 from the interior region 21 of the housing 17. The lugs 38 on each side of the spigot 27 prevent lateral movement of the housing 17 relative to the spigot and accordingly prevent axial movement of the bolt member 7 relative to the mounting plate 6. Thereby the bolt member 7 is locked in the locked position relative to the mounting plate 6. The catch means accommodating opening 28 also assists in preventing lateral movement of the housing 17 relative to the spigot 27, as does the protective member 52.

To unlock the bolt member 7 from the receiver 12, the padlock 31 is opened by inserting an appropriate key in the barrel lock 46 and rotating the barrel lock 46.

This releases the shackle member 42 from the body member 40 and the body member 40 is moved in the direction of the arrow D into the unlocked position under the action of a spring (not shown) which biases the shackle member 42 and body member 40 apparatus.

Accordingly, the padlock carrier member 30 and latch member 36 are moved into the unlocked position and the latch member 36 disengages the catch member 35 thereby permitting the catch member 35 to pass through the catch member accommodating opening 28. The housing 17 is pivoted in the direction of the arrow E by pivoting the bolt member 7 in the eye brackets 10 and 11. On the housing 17 clearing the catch member 25 the bolt member 7 is slid axially through the bores 13 of the eye brackets 10 and 11 into the unlocked position illustrated in Fig. 8.

Referring now to Figs. 10 to 14 there is illustrated a clasp according to another embodiment of the invention indicated generally by the reference numeral 65. The clasp 65 is substantially similar to the clasp 1 and similar components are identified by the same reference numeral. In this embodiment of the invention, the clasp 65 is particularly suitable for securing a pair of gates or doors closed, whereby the clasp 65 is mounted on one of the gates or doors and a receiver 66 is mounted on the other of the two gates or doors. In Figs. 10 and 11 the clasp 65 is illustrated mounted on one gate 67, while the receiver 66 is illustrated mounted on the other gate 68. A conventional bolt clasp 69 is mounted on the gate 68 for engaging a receiver (not shown) in the ground to retain the gate in the closed position, see Fig. 10. In this embodiment of the invention, an engagement member provided by an engagement pin 71 extends transversely from the end 8 of the bolt member 7. The engagement pin 71 is disposed on the bolt member 7 at right angles to the housing 17 so that on the housing 17 abutting the support plate 24 the engagement pin 71 extends from the bolt member 7 in a direction substantially perpendicular to the mounting plate 6 so that the engagement pin 71 engages a side face 72 of the receiver 66 remote from the clasp 65. Accordingly, on the clasp 65 being locked with the latch member 36 engaging the catch member 25 and the end 8 of the bolt member 7 engaged in the receiver 6 6, the engagement pin 71 acts with the receiver 66 to prevent withdrawal of the end 8 of the bolt member 7 from the receiver 66 should an attempt be made to pivot the gates 67 and 68 into their open position.

The engagement pin 71 comprises a spirally rolled pin of the type sold under the Trade Mark SPIROL. A pin of hardened steel is mounted in a bore extending the length of the roll pin 73. A transverse bore 75 in the end 8 of the bolt member 7 receives the engagement pin 71. To assemble the engagement pin 71 in the bore 75, the roll pin 73 is first inserted in the bore 75. The hardened pin 74 is then pressed into the bore of the roll pin 73. This ensures an interference fit of the engagement pin 71 in the bore 75 and further prevents extraction of the engagement pin 71 from the bore 7 5.

The receiver 66 is provided with a rectangular shaped opening 76 for receiving the end 8 of the bolt member 7. The opening 76 is so shaped to accommodate the engagement pin 71 as the end 8 and engagement pin 71 are being slid through the receiver 66, see Fig. 12.

To pass the engagement pin 71 through the opening 76, the bolt member 7 is pivoted in the direction of the arrow F so that the housing 17 is extending substantially perpendicularly to the mounting plate 6. On the engagement pin 71 passing through the opening 76 the bolt member 7 is then pivoted in the direction of the arrow G so that the housing 17 abuts the support plate 24 and the engagement pin 71 engages against the side face 72 of the receiver 66. A further advantage of providing the opening 76 of rectangular shape is that any sagging which may occur in one gate relative to another is accommodated.

Otherwise, use of the clasp 65 is identical to use of the clasp 1.

Referring now to Figs. 15 to 18 there is illustrated a security barrier also according to the invention indicated generally by the reference numeral 80. The security barrier 80 comprises a pair of upstanding spaced apart members, namely, a support member 81 and a receiving member 82, both of hollow section steel. An elongated horizontal barrier member 83 also of hollow section steel extends between the members 81 and 82.

The barrier member 83 is slidably mounted in a bore 84 in the support member 81 and is slidable from an open position illustrated in Fig. 16 with the barrier 83 extending on the side of the support member 81 remote from the receiving member 82 to a closed position illustrated in Fig. 15 with an end 85 of the barrier member 83 engaged in a recess 86 in the receiving member 82. A lock device according to the invention indicated generally by the reference numeral 87 which is substantially similar to the lock device 15 described and illustrated in the clasp 1 with reference to Figs. 1 to 9 is mounted on the receiving member 82 and barrier member 83 for securing the barrier member 83 engaged in the recess 86 of the receiving member 82. The lock device 87 comprises a catch member 88 which is identical to the catch member 25 and which is mounted on a spigot 89 identical to the spigot 27. The spigot 89 extends axially from the end 85 of the barrier member 83 and is accommodated by an aperture 90 in a wall 91 forming the recess 86. A housing 92 identical to the housing 17 is pivotally mounted on the wall 91 by means of a pivot bar 93. The pivot bar 93 is pivotally engaged in bores 94 of a pair of eye brackets 95 which are welded to the wall 91. The housing 92 is welded to the pivot bar 93 in similar fashion to the manner in which the housing 17 is welded to the bolt member 7. The housing 92 as well as being similar to the housing 17 also comprises all the components mounted in the housing 17 of the lock device 15 of Figs. 1 to 9, and for convenience the components mounted in the housing 17 are identified by the same reference numeral as the components mounted in the housing 17 of the lock device 15 of the clasp 1 of Figs. 1 to 9.

A pair of ground engaging plates 96 of steel are provided on the support member 81 and receiving member 82 for securing the members 81 and 82 to the ground.

Operation of the lock device 87 is identical to that of the lock device 15 and accordingly will only briefly be described here.

In use, the barrier member 83 is engaged in the recess 86 with the catch member 88 and spigot 89 extending through the aperture 90 in the wall 91. The housing 92 is pivoted downwardly in the direction of the arrow H so that the catch member 88 extends into the interior region 21 of the housing 92 through the catch means engaging opening 28. The padlock carrier member 30 is then moved upwardly in the direction of the arrow C so that the padlock 31 is locked and the padlock carrier member 30 is moved into the locked position with the lugs 38 of the latch member 36 engaging the catch member 88 to prevent removal of the catch member 88 from the housing 92. To open the security barrier 80, the padlock 31 is unlocked and the padlock carrier member 30 is moved into the unlocked position, so that the catch member 88 is disengaged by the latch member 36. The barrier member 83 is then disengaged from the recess 86 and slid through the bore 84 in the support member 81.

While the housing 92 of the lock device 87 of the security barrier 80 has been described as being pivotally mounted on the receiving member 82, while this is advantageous, it is not essential. The housing 92 may be fixedly mounted on the receiving member 82.

While a particular construction of barrier member has been described with reference to Figs. 15 to 18 any other construction of barrier member may be used. For example, in certain cases, it is envisaged that the barrier member may be mounted on the support member to be pivotal from a vertical open position to a horizontal closed position. Further, the catch means, instead of extending axially from the barrier member may extend transversely from the barrier member, and in which case, the catch means would extend through an aperture in an appropriate wall in a recess in the receiving member. Suitable means to facilitate entry of the catch member into the aperture would be provided.

While the lock device has been described for securing a bolt type clasp and a security barrier, the lock device may be used for securing any other pairs of members together. Needless to say, where the lock device is used for securing a bolt member to a mounting plate of a bolt type clasp, the housing of the lock device may be mounted on the mounting member, while the catch means would be mounted on the bolt member. Similarly in the case of the security barrier, the housing may be mounted on the barrier member while the catch means would be mounted on the receiving member. Indeed, in the case of the security barrier, the lock device may, if desired, be mounted on the support member instead of the receiving member.

Further, while it is preferable that the body member of the padlock should be mounted on the carrier member, in certain cases, it is envisaged that the shackle means of the padlock may be fixedly mounted on the carrier member and the body means of the padlock would be fixedly mounted to the housing. Further, while the padlock has been described as comprising a shackle means formed by a U-shaped shackle member, the padlock may be provided with any other suitable shackle means. Needless to say, while the padlock has been described with the shackle means slidable inwardly and outwardly of the body means, it is envisaged that the shackle means may be pivotally mounted relative to the body means and in which case the shackle means would be pivotal relative to the body means. In such a case, the movement of the padlock carrier member in the interior region of the housing would be appropriately arranged.

It is also envisaged that in certain cases the bottom wall of the housing may be dispensed with. In such cases, the catch member would be retained solely by the latch member 36 and lateral movement of the housing relative to the spigot would be prevented by the lugs 38 of the latch member 36.

Needless to say, while a specific construction of housing has been described, any other suitable construction of housing may be provided. Needless to say, it is not necessary that the housing should define a hollow interior region of rectangular cross section, the interior region of the housing may be of any desirable or suitable cross section.

While a particular shape and construction of catch means has been described, any other suitable catch means may be provided. Indeed, in certain cases, it is envisaged that the catch means may comprise a catch member with an aperture engagable with the latch member. Furthermore, while a particular construction of latch member has been described, any other suitable construction may be provided without departing from the scope of the invention. Needless to say, the latch member may be provided with a straight edge without the spigot accommodating slot 37.

Claims (32)

1. A lock device for securing a pair of members together, the lock device comprising: a catch means mounted on one of said members, a housing mounted on the other of said members, the housing defining a hollow interior region for receiving the catch means, and having a catch means accommodating opening for accommodating entry of the catch means into the housing, a padlock carrier member slidably mounted in the interior region of the housing and movable in the housing from an unlocked position to a locked position, latch means extending from the padlock carrier member for co-operating with the catch means for releasably retaining the catch means in the housing, the latch means retaining the catch means in the housing on the padlock carrier member being in the locked position, a padlock comprising a body means, and a shackle means, movable relative to the body means from an unlocked to a locked position, one of said means being fixedly mounted on the padlock carrier member and the other of said means being fixedly mounted to the housing so that as the means are moved from the unlocked to the locked positions, the padlock carrier member is moved from one of its said locked and unlocked positions to the other of said positions.

2. A lock device as claimed in Claim 1 in which the padlock carrier member is retained in the locked position by the padlock when the body and shackle means of the padlock are in the locked position. 5

3. A lock device as claimed in Claim 1 or 2 in which the body means of the padlock is fixedly mounted on the padlock carrier member.

4. A lock device as claimed in any preceding claim in which the catch means comprises a catch member 10 engagable with the latch means, the catch member being mounted on a spigot extending from the one of said members.

5. A lock device as claimed in Claim 4 in which the catch member comprises a disc extending transversely of 15 the spigot, the area of the disc being greater than the transverse cross sectional area of the spigot.

6. A lock device as claimed in Claim 4 or 5 in which the latch means comprises a latch member, the latch member being movable towards the spigot into the locked 20 position in a generally transverse direction relative to the spigot.

7. A lock device as claimed in Claim 6 in which a spigot accommodating slot extends into the latch member from a free edge thereof, the spigot accommodating slot being defined by a pair of lugs extending from the 5 latch member, and engagable with the spigot to prevent lateral movement of the housing relative to the spigot.

8. A lock device as claimed in any preceding claim in which the shackle means of the padlock comprises a Ushaped member and the body means comprises a body 10 member, the U-shaped shackle member being slidable inwardly into the body member to the locked position.

9. A lock device as claimed in Claim 8 in which the padlock carrier member comprises a base member, a pair of side members extending upwardly from the base member 15 to engage corresponding side edges of the body member of the padlock, and front and rear end members extending upwardly from the base member for engaging front and rear end edges of the body member of the padlock, the padlock carrier member being slidable from 20 the unlocked to the locked position longitudinally relative to the direction of motion of the shackle member to the body member, and transversely relative to the spigot.

10. A lock device as claimed in Claim 9 in which a key accommodating aperture is provided in the rear end member of the padlock carrier member.

11. A lock device as claimed in Claim 9 or 10 in which the latch member extends from the base member outwardly of the front end member of the padlock carrier member.

12. A lock device as claimed in any of Claims 8 to 11 in which a mounting block for engaging the shackle member fixedly mounts the shackle member to the housing.

13. A lock device as claimed in Claim 12 in which a shackle member accommodating recess extends into the mounting block for accommodating portion of the shackle member, the recess extending from the hollow interior region of the housing, and a pin in the mounting block extending across the recess retains the shackle member captive in the recess.

14. A lock device as claimed in Claim 12 or 13 in which the housing comprises an elongated hollow member defining a hollow interior region of rectangular cross section, the mounting block being mounted at one end of the housing and the padlock carrier member being slidable in the hollow interior region of the housing at the other end thereof, and the catch means accommodating opening being provided in the housing intermediate the mounting block and the padlock carrier member.

15. A lock device as claimed in preceding claim in 5 which the housing is pivotally mounted to one of said members and is pivotal from a position with the catch means disengaged from the housing to a position with the catch means extending into the interior region of the housing. 10

16. A lock device substantially as described herein with reference to and as illustrated in the accompanying drawings.

17. A clasp comprising a mounting member, an elongated bolt member mounted on the mounting member and being 15 axially slidable on the mounting member from an unlocked position to a locked position, and a lock device as claimed in any of Claims 1 to 16 mounted on the clasp for securing the bolt member in one of said locked and unlocked positions relative to the mounting 20 member, the catch means of the lock device being mounted on one of said bolt and mounting members, and the housing being mounted on the other of said members.

18. A clasp as claimed in Claim 17 in which the housing of the lock device is mounted on the bolt member and extends sidewardly therefrom.

19. A clasp as claimed in Claim 17 or 18 in which the bolt member is pivotal relative to the mounting member 5 about the longitudinal axis of the bolt member from a position with the catch means in the interior region of the housing to a position with the catch means withdrawn from the interior region of the housing.

20. A clasp as claimed in any of Claims 17 to 20 in 10 which a catch means support member extends from the mounting member sidewardly relative to the bolt member, the housing being pivotal towards and away from the catch means support member on pivoting of the bolt member. 15

21. A clasp as claimed in Claim 20 in which the catch means support member comprises a plate member for engaging the housing in abutment engagement on the catch means extending into the interior region of the housing. 20

22. A clasp as claimed in Claim 20 or 21 in which a protective member extends from the catch means support member to embrace portion of the housing to prevent jemmying of the housing away from the catch means support member.

23. A clasp as claimed in any of Claims 17 to 22 in which an engagement member extends sidewardly from the bolt member for engaging a receiver for the bolt member on a side of the receiver remote from the mounting member.

24. A clasp as claimed in Claim 23 in which the engagement member is moved from a position disengaging the receiver to a position engaging the receiver on the bolt member being pivoted from the position with the catch means disengaged from the housing to the position with the catch means engaged in the housing.

25. A clasp as claimed in Claim 23 or 24 in which the engagement member is an elongated engagement pin extending from the bolt member.

26. A clasp as claimed in any of Claims 23 to 25 in which the engagement member is of hardened steel.

27. A clasp as described herein with reference to and as illustrated in the accompanying drawings.

28. A security barrier comprising an upstanding support member and an upstanding receiving member spaced apart from the support member, and an elongated barrier member mounted on the support member and movable from an open position disengaged from the receiving member to a closed position engaged with the 5 receiving member, and a lock device as claimed in any of Claims 1 to 16 for locking the barrier member to the receiving member or support member, the catch means of the lock device being mounted on one of said barrier and receiving or support members and the housing of the 10 lock device being mounted on the other of said barrier and receiving or support members.

29. A barrier as claimed in Claim 28 in which the catch means is mounted on the barrier member and the housing of the lock device is mounted on the receiving 15 member.

30. A barrier as claimed in Claim 28 or 29 in which the housing of the lock device is pivotally mounted on the receiving member and is pivotal from a position disengaged from the catch means to a position with the 20 catch means engaged in the housing.

31. A barrier as claimed in any of Claims 28 to 30 in which a recess is formed in the receiving member for engaging an end of the barrier member, an aperture being formed in a wall of the recess for accommodating the catch means extending therethrough for engagement with the housing of the lock device.

32. A barrier substantially as described herein with reference to and as illustrated in the accompanying