DOOR SAFETY MECHANISM

Technical Field

This invention involves a door safety mechanism that is used on guillotine doors having rope pulleys for security purposes.

Known Status of Technique

Automatic door system is the name typically given to all door systems that operate automatically (by means of a sensor or control system) in order to facilitate the entrance/exit of people and vehicles and to provide control.

Automatic door system not only ensures the door to open and close automatically, but also provides ease of entrance/exit, saving of time and labour.

Although automatic door systems are regarded as secure in general, damaging or break-down of a part negatively affects door security.

In the present technique, automatic doors are used in nearly all fields. They are utilized for facilitating the entrance/exit of individuals, vehicles or any object in all kinds of areas.

Generally, automatic door types are named according to their opening movements. They are categorized such as sliding doors, swing doors, rolling doors, guillotine doors, etc.

The door type named "guillotine door" bears such a name because of its similarity to "guillotine", which is an apparatus designed to carry out executions during the French Revolution.

Guillotine systems are also used in many machinery systems in the field of industry. Guillotine door is a type of door that is opened with the upward/downward movement of the shutter (openable part) of the door. Guillotine doors are generally preferred in places having higher ceiling heights such as factories.

Guillotine doors are opened by being pulled upwards by means of a rope, and closed by a downward movement when the rope is released. In addition to this method, these doors can be opened and closed by means of pistons or similar mechanisms.

In the present technique, rope breakages cause serious problems in terms of life safety of individuals during the opening/closing of guillotine doors, especially when the door is open.

Security of life, as well as security of property is at risk in case of rope breakages particularly in areas where machines are operated and which people continuously enter/exit. Utilization of these systems in machine parks may also cause many other negative conditions concerning time, costs and labour force in addition to the risk of security of property. The present technique comes with an example of the solution suggestions generated for guillotine door systems, which is the patent/utility model application/specification numbered TR2004/00662 and titled "Guillotine door lock (right- left) for service (light freight) elevators". This application/specification is summarized as follows: "This door lock is a system comprising of main components such as a handle (19), a pulley (21), a compression spring (41), a plug contact (15), a row connector (7), a delta switch (46), and a pin (48) mounted on a sheet metal casing (4), and a sheet metal piece bearing the male section of the plug contact (15) on its lower surface and attached to floor doors from its upper surface, and fitted on a tooth-locked column (19). The plug contact (15) and the column (19) that is attached to each sheet metal piece on all floor doors allow for the concurrent function of both components and lock the door. "

Consequently, all of the aforementioned unfavourable conditions and the inadequacy of the existing solutions have obligated the door safety mechanism used for security purposes on guillotine doors.

Brief Description of the Invention

The present invention involves a door safety mechanism used for security purposes on guillotine doors, which meets all of the aforementioned requirements, eliminates all of the aforementioned disadvantages and brings along several additional advantages.

The main purpose of this invention is to prevent the negative conditions that may emerge in case of rope breakages in guillotine doors.

The purpose of the invention is to provide the prevention of the loss of life and property that may arise in case of rope breakages in guillotine doors.

Another purpose of the invention is to prevent negative conditions concerning time, costs, and labour force that may emerge due to the inability to ensure the security of property.

Another purpose of the invention is to provide and improve occupational safety, as well as the safe usage of guillotine doors and to prevent workflow from being disrupted especially in areas like factories.

Owing to this invention, workflow will not be disrupted, and therefore work progress or costs will not be negatively affected, and additional time or labour force will not be used.

The structural and characteristic properties and all advantages of the invention will be understood more clearly with the figures and the detailed description that is written by referring to the figures given below, and therefore this specification should be evaluated by taking the figures and the detailed description into consideration.

Figures to Help You Understand the Invention

"The door safety mechanism used for security purposes", which is the subject of this application, is shown by the enclosed figures that are explained below: Figure 1 shows a perspective drawing of the locking assembly (1) of "the door safety mechanism used for security purposes" which is the subject of this invention when its pin (3) is off.

Figure 2 shows a perspective drawing of the locking assembly (1) of "the door safety mechanism used for security purposes" which is the subject of this invention when its pin (3) is on.

Figure 3 shows a section drawing of the locking assembly (1) of "the door safety mechanism used for security purposes" which is the subject of this invention.

The figures do not necessarily require scaling, and the details that are not required for understanding the present invention may be omitted. Apart from this, the components that are at least substantially identical or have at least substantially identical functions are shown with the same number.

Description of Component References

Components of "the door safety mechanism used for security purposes", which is the subject of this application, are numerated as follows, and the names of the components corresponding to the given numbers are given below.

1. Locking assembly

2. Body

2.1. Notch 1

3. Pin

3.1. Notch 2

4. Housing

5. Spring

6. Handle

7. Wheel

8. Hanger section

Detailed Description of the Invention

This detailed description explains the preferred configurations of the invented door safety mechanism used for security purposes with non-restrictive examples given only for the subject to be understood better.

This invention is comprised of an invented locking assembly (1) attached to the rope that is positioned to keep the door open by means of the hanger section (8); comprises at least one wheel (7) to allow for the movement on the door surface, a handle (6) that allows the user to manually pull and push the door, a spring (5) which becomes pinched when the rope is holding, is unlatched in case of rope breakage and allows for the movement of the body (2) and the movement of the pin (3), and is positioned at the end of the body (2), a housing (4) to house this pin (3) in off position, a pin (3) that is positioned in this housing (4) and stops the guillotine door by going out of the housing (4) and going into the holes positioned on the upper section of the door when at least one notch 1 (2.1) positioned on the body (2) actuates at least one notch 2 (3.1) positioned on the pin (3) in case of rope breakage as the body (2) starts moving, and a body (2) which allows for the movement of the aforementioned pin (3), contains at least one notch 1 (2.1) and constitutes the plane on which the invention is attached with the rope in guillotine doors.

The pin (3) is positioned in the aforementioned housing (4). It stops the guillotine door by going out of the housing (4) and going into the holes positioned on the upper section of the door when at least one notch 1 (2.1) positioned on the body (2) actuates at least one notch 2 (3.1 ) positioned on the pin (3) in case of rope breakage as the body (2) starts moving.

The housing (4) is a section in which the pin (3) is positioned. There is a space on the rear section of the housing (4) to enable at least one notch 2 (3.1) positioned on the pin (3) to come into contact with at least one notch 1 (2.1) positioned on the body (2).

The spring (5) becomes pinched when the rope lifts the door upwards. In this position, the pin (3) remains in the aforementioned housing. In case of a rope breakage, the spring (5) is released, allowing the body (2) to move. With the momentary movement of the body (2), at least one notch 1 (2.1) positioned on the body (2) actuates one notch 2 (3.1) positioned on the pin (3). This way, the pin (3) is turned on, goes out of the housing (4), and goes into the nearest hole on top of the door, preventing the door from falling.

The wheel (7) is in contact with the door surface. This enables the invented locking assembly (1) to easily move upwards and downwards on the edge of the door.

The handle (6) enables the user to manually pull and push the invented locking assembly (1).

The hanger section (8) is the section attached to the rope that is positioned to keep the door open. When the rope is released, the hanger section (8) becomes unlatched, allowing for the movement of the spring (5).

Mode of Operation of the Invented Locking Assembly (1)

The aforementioned locking assembly (1) is attached to the rope through the hanger section (8). In the meanwhile, the pin (3) remains in the housing (4). In case of a rope breakage, the tightened spring (5) becomes loose, enabling at least one notch 1 (2.1 ) to move. While moving, at least one notch 1 (2.1) which is mentioned allows for the movement of at least one notch 2 (3.1) that is in contact with notch 1 (2.1), and makes the pin (3) go out of the housing. In the meanwhile, the wheels (7) contact the door surface and facilitate movement. The pin (3) goes into the nearest of the multiple holes on the edge of the door while going out of the housing and stops the door.