Security revolving door

• US 5,146,711 A
• Filed: 03/08/1991
• Issued: 09/15/1992
• Est. Priority Date: 03/08/1990
• Status: Expired due to Fees

• Current Assignee: Gallenschutz Metallbau GmbH
• Original Assignee: Gallenschutz Metallbau GmbH
• Inventors: Hochstuhl, Erwin, Gallenschutz, Thomas, Vogel, Hermann
• Primary Examiner(s): Luebke, Renee S.
• Assistant Examiner(s): REDMAN, JERRY E
• Application Number:
  US07/666,238
• Time in Patent Office: 557 Days
• Field of Search: 49/13, 49/35, 49/42, 49/46, 49/47, 49/49
• US Class Current: 49/46
• CPC Class Codes: E06B 11/08 Turnstiles; Gates for control of entry or exit of persons, e.g. in supermarkets control gates on vehicles B60N5/00 ; bank protection devices E05G5/00; with registering means G07C9/10 ; coin-freed facilities for turnstiles G07F17/14

Abstract

In a security revolving door is provided (1) with a turnstile (2) rotatably through one passage sector (8) and one blocking sector (9), which turnstile can be turned into a defined resting position. An electronic control unit (28) with peripheral monitoring devices is provided to control a blocking device (14) releasing or blocking the rotation of the turnstile (2). The blocking device (14) consist of the simplest possible, identical individual parts, which can be simply adjusted or readjusted to different cases of application and modes of operation. This is achieved by the blocking device (14) having a blocking member (15) which is connected nonrotatably to the turnstile (2). The blocking member is provided with blocking cams (18, 19, 20), whose number corresponds to the number of the cross wings (4, 5, 6), and is associated with two electromagnetically controllable blocking elements (16, 17). One of the blocking elements (16) brings about blocking of the counterclockwise rotation (arrow 22) in cooperation with a blocking cam (18, 19, 20), and the other blocking element (17) brings about blocking of the clockwise rotation (arrow 23) in cooperation with another blocking cam (18, 29, 20), wherein the blocking elements (16, 17) can be mechanically deflected from their blocking position from the blocking cams (18, 19, 20) in the opposite direction of rotation.

Claims

1. A security revolving door arrangement, comprising:

a turnstile including at least two cross wings;

passage sector means surrounding and defining a passage sector on one side of the turnstile, said passage sector means including a stationary housing part which extends over a central angle which is approximately equal to or smaller than an angular distance between two successive cross wings;

blocking sector means surrounding and defining a blocking sector at a side of said turnstile opposite to said passage sector;

a blocking device including a blocking member connected non-rotatably to said turnstile, said blocking member including blocking cams with a first side stop face and a second side stop face, the number of cams corresponding to the number of cross wings of the turnstile;

two electromagnetically controlled blocking arms, said blocking arms being moveable into and out of engagement with the first and second stop faces, one blocking arm engaging the first stop face of a blocking cam for blocking counterclockwise rotation and the other blocking arm engaging with the second stop face of a blocking cam for blocking clockwise rotation, each of said blocking arms is designed as a catch having two coupling fingers offset by substantially 90°

relative to a bearing access, one of said coupling fingers being optionally coupled with an armature of an electromagnet of said electromagnetic drive means, whereby the coupling of one or another of said coupling fingers changes the orientation of the associated blocking arm; and

electronic control means including peripheral monitor devices for controlling the blocking arms for releasing or blocking the rotation of the turnstile.

2. A security revolving door arrangement comprising:

a turnstile having a central substantially vertical rotary axis, said turnstile having at least three rotary wings extending radially from said central vertical rotary axis, and said turnstile being rotatable about said central substantially vertical rotary axis and having a plurality of resting positions;

a housing part positioned along a circumferential edge of said rotary wings, said housing part and said turnstile defining a passage sector, said housing part radially limiting said passage sector, said rotary wings being rotatable through said passage sector, said passage sector extending over a central angle which is smaller than an angle between said rotary wings;

a blocking grid positioned along another circumferential edge of said rotary wings, said blocking grid and said turnstile forming a blocking sector through which passage is blocked, said rotary wings being rotatable through said blocking sector;

drive means for returning said turnstile to one of said plurality of resting positions after said turnstile has been rotated away from one of said plurality of resting positions, one of said rotary wings being located in a center of said passage sector when said turnstile is in one of said plurality of resting positions;

a blocking member joined rigidly with said turnstile and being rotatable with said turnstile, said blocking member having a number of blocking cams equal to a number of said rotary wings, said blocking cams being spaced apart by an angular distance substantially equal to said angle between said rotary wings, each of said blocking cams having a first and a second stop surface;

first and second blocking catch means for interacting with said blocking cams, said first and second blocking catch means having a blocking surface moveable between an active position and an inactive position, said blocking surface of said first blocking catching means blocking rotation of said first stop surface in a first direction past said first blocking catch means when said blocking surface is in said active position, said blocking surface of said first blocking catch means moving into said inactive position during rotation of said blocking cams in a second direction, said blocking surface of said second blocking catch means blocking rotation of said second stop surface in a second direction past said second blocking catch means when said blocking surface is in said active position, said blocking surface of said second blocking catch means moving into said inactive position during rotation of said blocking cams in a second direction, said blocking catch means being positioned outside a rotational path of said blocking cams, and said blocking surfaces being moveable into said rotational path of said blocking cams in said active position, said blocking surfaces in said active positions being spaced apart by a blocking angular distance greater than said central angle of said passage sector and also greater than an angular distance delta between said first stop surface of one of said blocking cams and said second stop surface of an adjacent one of said blocking cams;

control means for controlling movement of said first and second catch means, said control means having a microprocessor and peripheral monitoring devices, said peripheral monitoring devices having a card reader, sensors in said passage sector, and a turnstile position indicator.

3. A security revolving door according to claim 2 wherein the difference between the blocking angular distance and the angular distance delta of the stop faces of the blocking cams located next to the blocking arms is substantially 2°

-5°

at a turnstile diameter of substantially 1 m.

4. A security revolving door according to claim 2 wherein the blocking angular distance, the angular distance delta of the stop faces of the blocking cams and the central angle of the housing part are dimensioned such that a door gap with a maximum width of 130 mm can be formed between and exit-side delimiting edge of said housing part and a respective adjacent rotary wing of said rotary wings in a respective blocking position of the turnstile caused by a blocking arm in a passage direction.

5. A security revolving door according to claim 2, wherein the blocking arms are provided with deflecting surfaces extending obliquely to a path of rotation of the path of the blocking cams, said deflecting faces being deflectable from a blocking position by the blocking cams rotating in a direction opposite to a blocking direction.

6. A security revolving door according to claim 5, wherein each of said blocking arms is designed as a locking bolt having a wedge surface on a front side engaging with the blocking cams, said wedge surface forming an acute angle with the blocking surface of the locking bolt.

7. A security revolving door arrangement comprising:

a turnstile means for causing passage through the security revolving door arrangement by rotation in one of a first and second direction of the turnstile means through a passage angle, said turnstile means having a plurality of rotary wings;

control means for determining in which of said first and second directions said turnstile should rotate;

blocking means for selectively blocking said rotation of said turnstile in one or both of said first and second direction in accordance with said control means, said blocking means at most limiting said rotation of said turnstile to a restriction angle less than said passage angle, said restriction angle being large enough for exiting from the security revolving door arrangement if said rotation of said turnstile means is blocked, said blocking means having a blocking member joined rigidly with said turnstile, said blocking member having a number of blocking cams equal to a number of said rotary wings, each of said blocking cams having a first and second stop surface, said blocking cams being spaced apart by an angular distance substantially equal to said angle between said rotary wings, said blocking means also having first and second blocking catch means for interacting with said blocking cams, said first and second blocking catch means being positioned outside a rotational path of said blocking cams and movable into said rotational path of said blocking cams in order to block said rotation of said turnstile means, said first and second blocking catch means each having a blocking surface, said blocking surface of said first blocking catch means coming in contact with said first stop surface of one of said blocking cams in order to block rotation of said turnstile means in a first direction and said blocking surface of said second blocking catch means coming in contact with said second stop surface of one of said blocking cams in order to block rotation of said turnstile means in a second direction, said blocking surfaces being spaced apart by a blocking angular distance greater than an angular distance between said first stop surface of one of said blocking cams and said second stop surface of an adjacent one of said blocking cams.