WO2009146919A1

WO2009146919A1 - A device with a tilting bolt, and a lock system comprising a tilting bolt, mainly for sectional doors

Info

Publication number: WO2009146919A1
Application number: PCT/EP2009/004025
Authority: WO
Inventors: Ivo Finardi
Original assignee: Prefer Commerciale S.R.L.
Priority date: 2008-06-06
Filing date: 2009-06-02
Publication date: 2009-12-10
Also published as: ITTO20080441A1

Abstract

A device with a tilting bolt, and a lock system comprising a tilting bolt, mainly for sectional doors, wherein the device comprises a supporting structure (1-2) intended to be applied to a door (P), a tilting bolt (4) and a member (6) for blocking and unblocking the tilting bolt (4), the tilting bolt (4) is pivoted onto an axle (3) which is supported by the structure (1-2), is parallel to the door plane (P) and is perpendicular to the door displacement direction (D), and the blocking and unblocking member (6) is guided in the structure (1-2) for a displacement in a direction parallel to the door plane (P), at a short distance from this plane (P), and perpendicular to the door displacement direction (D), the blocking and unblocking member (6) being allowed to displace between a blocking position in which it interferes with the trajectory of the tilting bolt (4), thus blocking the displacement thereof, and an unblocking position in which it does not interfere with the trajectory of the tilting bolt (4), thus leaving free the displacement thereof.

Description

DESCRIPTION

A DEVICE WITH A TILTING BOLT, AND A LOCK SYSTEM COMPRISING A TILTING BOLT, MAINLY FOR SECTIONAL DOORS

FIELD OF THE INVENTION The subject of the present invention is a device with a tilting bolt, particularly suitable for equipping the locks of the sectional doors and the like, as for example the doors of garages and similar premises. This invention also refers to a system comprising a lock and a device with a tilting bolt.

BACKGROUND OF THE INVENTION The locks for sectional doors and the like are provided with bolts which operate sideways of the door, against the door guide section bars or against counteracting members solid with said section bars. These locks may be equipped with bolts of different kinds, and in particular with tilting bolts. The tilting bolts are known in the technique, for example by the Swiss Patent No. 254.744 and the Italian Patent Application No. BO 2005 A 000 505. With the tilting bolts cooperate blocking and unblocking members controlled by a lock.

However these known tilting bolts, like the bolts of several other kinds, along with the corresponding blocking and unblocking members, dis- place and operate within a common plane parallel to the door plane at a very short distance therefrom. . Therefore, the counteracting members with which these bolts cooperate need to be mounted at a very short distance from the door guide section bars. In some cases this need involves mounting difficulties, that may be serious.

SUMMARY OF THE INVENTION

In view of the above, the main object of this invention is to provide a device with a tilting bolt suitable for cooperating with a counteracting member mounted at a relatively important distance from the plane in which lie the door and its guide section bars, in order to eliminate any difficulty in those cases in which specific reasons hinder the mounting of the counteracting members close to the door guide section bars. Another object of the invention is to provide a device with a tilting bolt whose blocking and unblocking member displaces within a plane, different from the plane in which lies the tilting bolt, parallel to the door plane at a short distance therefrom, so that it can be operated by a pull rod or cable which extends close to the door plane.

Still another object of the invention is to provide a device with a tilting bolt whose manufacture is relatively simple and inexpensive, and whose operation is reliable and long lasting.

The device with a tilting bolt according to this invention comprises a supporting structure intended to be applied to a door, a tilting bolt and a member for blocking and unblocking the tilting bolt, and is characterized in that the tilting bolt is pivoted onto an axle which is supported by said structure, is parallel to the door plane and is perpendicular to the door displacement direction, whereas the blocking and unblocking member is guided in said structure for a displacement in a direction parallel to the door plane, at a short distance from said plane, and perpendicular to the door displacement direction, said blocking and unblocking member being allowed to displace between a blocking position in which it interferes with the tilting bolt trajectory, thus blocking the displacement thereof, and an unblocking position in which it does not interfere with the tilting bolt trajectory, thus leaving free the displacement thereof.

In this manner, unlikely the known devices in which the tilting bolt and its blocking and unblocking member are mounted, operate and displace in the same plane, said component parts are mounted, operate and displace within respectively perpendicular planes. As a consequence, the tilting bolt extends for its entire length away from the door plane, and it is suitable for cooperating with a counteracting member mounted at a relatively important distance from the plane wherein the door and its guide section bars lie, whereas the blocking and unblocking member is mounted and operates in a position adja- cent to the door, and it can be driven by a pull rod or cable coming from a lock and extending close to the door.

Preferably, said axle on which there is pivoted the tilting bolt also forms a guide means for the locking and unlocking member.

It is of advantage that a helical compression spring is inserted on said axle and elastically pushes the locking and unlocking member towards its locking position, whereby it activates the locking in automatic manner when the tilting bolt, by cooperating with the counteracting member, attains its engagement position.

Preferably, said structure also comprises a covering member which covers and protects all the component parts of the device and from which protrudes said tilting bolt.

It is of advantage that the device also includes, as an implement, a counteracting member comprising an engagement portion, a stop portion and a mounting portion, all these portions extending in reciprocally perpendicular planes in such a manner that, by considering the counteracting member in its operating condition, said engagement portion extends parallel to the door plane, said stop portion projects perpendicular towards the door plane, and said mounting portion extends perpendicular to the door plane and parallel to the door displacement direction, whereby this latter portion is suitable for being easily mounted on members solid with the door guide section bars or on other fixed members.

Brief description of the drawings

These and other features, objects and advantages of the subject of the present invention will appear more clearly from the following description of an embodiment, being a non limiting example, with reference to the appended drawings, wherein:

Figure 1 represents in perspective the device with tilting bolt, in its rest position.

Figure 2 shows, in a way similar to Figure 1 , the device with tilting bolt, in its engagement position.

Figure 3 shows the operation principle, per se known, of a tilting bolt.

Figure 4 represents in an exploded view the component parts of the device with tilting bolt.

Figure 5 represents a counteracting member intended for cooperating with the device with tilting bolt.

Figure 6 is a perspective view of a door portion, the guide section bars, a lock system comprising a tilting bolt applied to the door, and a counteracting member applied at a certain distance from the door guide section bars. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

With reference to the Figures, the device with tilting bolt according to the invention comprises a supporting structure shaped as a bracket with a plate 1 intended to be applied to a door and with two arms 2 extending from plate 1 and supporting an axle 3 which, in the operating conditions, extends parallel to the door plane and perpendicular to the door displacement direction D. The door 1 is guided by section bars G applied to a wall or to another fixed structure.

On the axle 3 is pivoted a tilting bolt 4, which is provided with a tooth 5 for blocking the bolt. A blocking and unblocking member 6 is slidably mounted on the axle 3 and it can slide along a direction perpendicular to the plane of the tilting bolt 4. Member 6 has a maneuver rod 7 protruding from the supporting structure 1. A helical compression spring 6 is inserted on axle 3 and, by resting against one of the arms 2 of the supporting structure, elas- tically pushes the blocking and unblocking member 6 towards the tilting bolt 4. The blocking and unblocking member 6 is so shaped as to cooperate with tooth 5 of the tilting bolt 4 in order to block the bolt when this latter attains its engagement position (Figure 2), and to unblock the bolt when a traction is exerted on the maneuver rod 7 against the action of spring 8. Finally, a cover box 9 (not represented in Figures 1 and 2) covers the described mechanisms; the tilting bolt 4 projects from box 9.

In its rest position (Figure 1), the tilting bolt 4 is free to rotate within certain limits, and it is directed downwards with a prefixed slope, for example of 60°. The blocking and unblocking member 6, pushed by spring 8, rests against the tilting bolt- 4, but it cannot engage the tooth 5 which is not in register with it, and does not hinder the movement of the tilting bolt 4.

On the contrary, in the engagement position, when the tilting bolt 4 has an erected position (Figure 2), the blocking and unblocking member 6, pushed by spring 8, engages the tooth 5 of the tilting bolt 4 and thus blocks the bolt. It can be disengaged therefrom only by applying a traction onto the maneuver rod 7.

The tilting bolt 4 is foreseen for cooperating with a counteracting member, represented in Figure 5, which comprises an engagement portion 10, a stop portion 12 and a mounting portion 13. In the operating conditions, the engagement portion 10 extends parallel to the plane of door P, and it is provided with an opening 1 1 suitable for receiving the tilting bolt 4. The stop portion 12 projects perpendicularly from the engagement portion 10 towards the plane of door P₁ and it is arranged for acting against the end of the tilting bolt 4 when this latter, during the downwards displacement of door P₁ con- tacts the stop portion 12. The mounting portion 13 extends perpendicular to the plane of door P and parallel to the door displacement direction D, whereby the mounting portion 13 is suitable for being easily mounted on a member, such as a support S₁ solid with the section bars G or however fixed.

The operation principle of the tilting bolt, per se known, is remem- bered in Figure 3. During the closure downward movement of a door, the tilting bolt 4 comes down along the direction of arrow F until its end contacts the stop portion 12 of the counteracting member. Then the bolt 4, being free to rotate, tilts whereas its end enters the opening of the engagement portion 10 of the counteracting member, until the position 4" is reached. At this point the tooth 5 of the bolt is engaged by the locking and unlocking member 6 which immobilize the same, thus preventing any displacement of the tilting bolt 4 and therefore preventing the lifting of door P. The rotation of bolt 4 and the lifting of the door P can then be unblocked only by applying a traction to the maneuver rod of the blocking and unblocking member 6, in order to disengage this latter from the tooth 5 of the tilting bolt 4.

As shown by Figure 6, the maneuver rod 7 of the blocking and unblocking member can be operated by a pull cable or rod 14 connected to a lock 15. As it may be observed, thanks to the arrangements according to the invention, the tilting bolt 4 cooperates with a counteracting member 10 mounted at a relatively important distance from door P, but nonetheless the tilting bolt 4 can be operated by a rod 14 extending immediately adjacent the plane of door P.

Therefore, as it appears from the foregoing, by the application of the invention may be provided a lock system comprising a tilting bolt, which sys- tern, without having protruding members that may disturb, cooperates with a counteracting member installed at a relatively important distance from the door guide section bars, said distance being substantially determined by the length allocated to the tilting bolt. Moreover, the device with tilting bolt can be industrially manufactured in a simple and inexpensive manner, and it does not com- prise component parts subjected to easy damage or having a short duration. It is to be understood that this invention is not limited to the embodiment which has been described and shown as an example. Several possible modifications have been stated in the description, and others are available to those skilled in the art. These modifications and others, as well as any replacement by technically equivalent means, may be applied to what has been described and shown, without departing from the spirit of this invention as defined by the appended Claims.

Claims

1 . A device with a tilting bolt comprising a supporting structure (1 -2) intended to be applied to a door (P), a tilting bolt (4) and a member (6) for blocking and unblocking the tilting bolt (4), characterized in that the tilting bolt (4) is pivoted onto an axle (3) which is supported by said structure (1 -2), is parallel to the door plane (P) and is perpendicular to the door displacement direction (D)₁ and that the blocking and unblocking member (6) is guided in said structure (1-2) for a displacement in a direction parallel to the door plane (P)₁ at a short distance from said plane, and perpendicular to the door dis- placement direction (D), said blocking and unblocking member (6) being allowed to displace between a blocking position in which it interferes with the trajectory of the tilting bolt (4), thus blocking the displacement thereof, and an unblocking position in which it does not interfere with the trajectory of the tilting bolt (4), thus leaving free the displacement thereof.

2 . A device with a tilting bolt as set forth in Claim 1 , characterized in that said axle (3) on which there is pivoted the tilting bolt (4) also forms a guide means for the locking and unlocking member (6).

3 . A device with a tilting bolt as set forth in Claim 1 , characterized in that a helical compression spring (8) is inserted on said axle (3) and elasti- cally pushes the locking and unlocking member (6) towards its locking position, whereby the member (6) activates the locking in automatic manner when the tilting bolt (4), by cooperating with a counteracting member (10-13), attains its engagement position.

4 . A device with a tilting bolt as set forth in Claim 1 , characterized in that said structure (1-2) also comprises a covering member (9) which covers and protects all the component parts of the device and from which protrudes said tilting bolt (4).

5 . A device with a tilting bolt as set forth in Claim 1 , characterized in that the device also includes, as an implement, a counteracting member (10-13) comprising an engagement portion (10), a stop portion (12) and a mounting portion (13), all these portions extending in reciprocally perpen- dicular planes in such a manner that, by considering the counteracting member (10-13) in its operating condition, said engagement portion (10) extends parallel to the door plane (P), said stop portion (12) projects perpendicular towards the door plane (P), and said mounting portion (13) extends perpen- dicular to the door plane (P) and parallel to the door displacement direction (D), whereby the mounting portion (13) is suitable for being easily mounted on a member (S) solid with the door guide section bars (G) or on other fixed members.

6 . A system including a lock (15), a device with a tilting bolt (4), and a pull rod or cable (14) that connects said lock (15) and said device with tilting bolt (4) by extending in a plane intended to be arranged adjacent to a door (P), characterized in that said device with tilting bolt (4) conforms one or more of the foregoing Claims.