CA1165785A - Flame proof operator and control gear for commercial and industrial sliding door - Google Patents
Flame proof operator and control gear for commercial and industrial sliding doorInfo
- Publication number
- CA1165785A CA1165785A CA000379030A CA379030A CA1165785A CA 1165785 A CA1165785 A CA 1165785A CA 000379030 A CA000379030 A CA 000379030A CA 379030 A CA379030 A CA 379030A CA 1165785 A CA1165785 A CA 1165785A
- Authority
- CA
- Canada
- Prior art keywords
- door
- motor
- control box
- electric motor
- operator
- 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.)
- Expired
Links
- 238000004880 explosion Methods 0.000 claims abstract description 21
- 230000006872 improvement Effects 0.000 claims abstract description 3
- 230000004913 activation Effects 0.000 abstract 1
- 239000000306 component Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/136—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas explosion-proof
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
- E05F15/668—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/106—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/11—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for industrial buildings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
An industrial door operator for activation of upward acting or horizontally sliding doors or gates is disclosed, The door operator is made with a single waterproof or explosion proof control box thus allowing standard limit switches, contactors etc. to be employed. The door operator has an electric motor mounted on a frame, the motor driving a sprocket connected to an output shaft for operating the door, the improvement comprising a single weatherproof or explosion proof control box containing motor control contactors, limit switch, and a safety interlock switch adapted to disconnect power to the electric motor and allow manual operation of the door.
An industrial door operator for activation of upward acting or horizontally sliding doors or gates is disclosed, The door operator is made with a single waterproof or explosion proof control box thus allowing standard limit switches, contactors etc. to be employed. The door operator has an electric motor mounted on a frame, the motor driving a sprocket connected to an output shaft for operating the door, the improvement comprising a single weatherproof or explosion proof control box containing motor control contactors, limit switch, and a safety interlock switch adapted to disconnect power to the electric motor and allow manual operation of the door.
Description
.
This invention relates to industrial door operators more specifically to a novel operator for the actuation of many types of upward acting or horizontally sliding doors or gates suitable for use in locations where the electrical system must be weatherproof or explosion proof. Throughout the specification and claims, the gates and doors are all referred to as doors.
Industrial and commercial door operators for garages and the like are well known and different types have been on the market for a number of years. There are several different types of door operators. Some of these require that all the electrical system be completely weatherproof or explosion proof for use in mines or factories wherein the environment contains gases or particles possibly of an explosive nature In the past it has been very expensive to make a door operator mechanism completely explosion or weather proof because the contactors, limit switches and other switches have all had to be separately encased in explosion or weather proof containers and the explosion proof or weatherproof connectors have to be provided between these containers. Every piece of electrical equipment has to comply with explosion proof or weatherproof requirements laid down by government or other regulations. This results in a very expensive door operator mechanism.
We have now found that a novel industrial door operator can be made with a single weatherproof or explosion proof control box which contains all the electrical components wlthin the single box and has special sealed entries either mechan~cal or electrical into this box and, therefore, avoids the necessity of having to provide explosion proof connectors between electr~cal components, and also allows the use of stand-ard electrical components, not ones that are explosion or weather proof.
7~'~
The present inventlon provides in a commercial and industrial door operator having an electric motor mounted on a ~rame, the motor driving a sprocket connected to - lA -S
an output shaft for operating the door, the improve-ment comprising a single weatherproof or explosion proof control box containing motor control contactors, limit switch, and a safety interlock switch adapted to disconnect power to the electric motor and allow manual operation of the door. In another embodiment, a brake is attached to the electric motor and the control box contains a solenoid to open the brake only when the motor is operating, the brake having a manual release to allow manual operation of the door.
In drawings which illustrate embodiments of the invention, Fig 1 is an isometric view of an explosion proof door operator according to one embodiment of the present in-vention.
Fig. 2 is an elevational view showing the inside of the control box from the door operatox of Fig. 1.
Fig. 3 is an elevational view of a weatherproof door operator according to another embodiment of the present invention.
Referring to Figs. 1 and 2, the door operator 10 comprises an explosion proof motor 11 with a V-belt pulley 12 on the motor shaft driving V-belt pulley 13 on an intermediate shaft 14 by means of V-belt 15. A chain drive 16 from the intermediate shaft 14 has an intermediate sprocket 17 mounted on shaft 18 and a further chain drive 19 drives sprocket 20 on output shaft 21 The output shaft 21 opens and closes the door and is supported on two pillow blocks 22 mounted on frame members 23 extending for the length of the door operator 10.
The control box 25 is mounted on the frame members 23 and is an explosion proof sealed container generally formed of cast aluminum, with a cover held to the box by a number of bolts S~3,5 which fit into tapped holes in the box flange. An cxplosion proof electrical conduit 26 leads from the box 25 to the explosion proof motor 11. The motor shaft has a brake 27 mounted thereon operated by a lever mechanism 28 connected to an arm 29 rotated by a shaft 30 entering the control box 25.
A manual release lever 31 on the other side of the door operator from the brake has a linkage (not shown) to allow the brake to be manually released when it is necessary to operate the door operator manually. Adjacent the manual release lever 31 is a chain sprocket 32 (as shown in Fig, 2) for a manual operated chain 33. When this door is operated by the manual chain 33 the manual release lever 31 for the brake is activated and the safety interlock switch disconnects power to the motor so the , power cannot be turned on when an operator is manually opening or closing the door.
A separate chain and sprocket system 35 from the intermediate shaft 18 is connected to shaft 36 entering the control box 25. The shaft 36 is supported in the control box 25 at the free end by a pillow block 37 and is threaded through-out lts length having two collars 38 positioned thereon, The collars 38 have grooves which slide in a channel or ridge provided on the base of the control box 25. Limit switches 39 are provided to be triggered by the collars 38 moving backwards and forwards on the threaded shaft 36, thus the limit switches can be positioned to set the open and shut locations of the door.
The control system is operated from a 24-volt trans-former 40 which in turn feeds a push button control station (not shown) operating motor control relays 41 for operation of the motor 11 in either direction. A solenoid 42 operates to rotate brake shaft 30 so that when the motor is powered to go in either direction the solenoid 42 is energized and the brake 27 is released. A safety interlock switch 43 has a linkage (not shown) l~t~7~t~
to brake release arm 31 so that if the door operator is manually used, the safety interlock switch is moved to the "off" posi-tion and the motor cannot accidentally be switched on.
As may be seen in Figs. 1 and 2 the electrical com-ponents with the exception of the operating push button control and the motor itself, are retained within the control box 25. Thus the only wiring required in the field is from the con$rol box 25 to the power supply and from the control box 25 to the push button control and the saving in explosion or weather proof type conduits is greatly reduced Furthermore, the limit switch arrangement, solenoid, transformer, control relays and interlock switch are all standard open components and do not have to be individually encased in explosion proof containers.
Fig. 3 shows another embodiment of a door operator having a weatherproof control box 25 and weatherproof conduit 26 between motor and control box 25. The embodiment of the door operator shown in Fig 3 is somewhat different to that shown in Fig, 1 but operates on substantially the same concept and the inside of the control box 25 is substantially the same as that shown in Fig 2.
Whereas a brake is shown in all the drawings it will be apparent to those skilled in the art that brakes are not always required in door operators and may be omitted in which case the solenoid 4Z is not required, however, an interlock switch is still included within the control box 25 to disconnect the power to the electric motor when the operator is manually operated Other embodiments include a manual overload relay which may be included within the control box 25, a friction clutch may be fitted on the shaft 15 to protect door and operator in case of obstruction, the clutch is adjustable to suit door size and weight.
Various changes may be made to the door operator 11~i5~
mechanism disclosed herein, but in all cases a single weather-proof or explosion proof control box is provided, Different types and sizes of door operators may be used depending on the requirements of a particular weight and size of door. The scope of the invention is limited only by the claims,
This invention relates to industrial door operators more specifically to a novel operator for the actuation of many types of upward acting or horizontally sliding doors or gates suitable for use in locations where the electrical system must be weatherproof or explosion proof. Throughout the specification and claims, the gates and doors are all referred to as doors.
Industrial and commercial door operators for garages and the like are well known and different types have been on the market for a number of years. There are several different types of door operators. Some of these require that all the electrical system be completely weatherproof or explosion proof for use in mines or factories wherein the environment contains gases or particles possibly of an explosive nature In the past it has been very expensive to make a door operator mechanism completely explosion or weather proof because the contactors, limit switches and other switches have all had to be separately encased in explosion or weather proof containers and the explosion proof or weatherproof connectors have to be provided between these containers. Every piece of electrical equipment has to comply with explosion proof or weatherproof requirements laid down by government or other regulations. This results in a very expensive door operator mechanism.
We have now found that a novel industrial door operator can be made with a single weatherproof or explosion proof control box which contains all the electrical components wlthin the single box and has special sealed entries either mechan~cal or electrical into this box and, therefore, avoids the necessity of having to provide explosion proof connectors between electr~cal components, and also allows the use of stand-ard electrical components, not ones that are explosion or weather proof.
7~'~
The present inventlon provides in a commercial and industrial door operator having an electric motor mounted on a ~rame, the motor driving a sprocket connected to - lA -S
an output shaft for operating the door, the improve-ment comprising a single weatherproof or explosion proof control box containing motor control contactors, limit switch, and a safety interlock switch adapted to disconnect power to the electric motor and allow manual operation of the door. In another embodiment, a brake is attached to the electric motor and the control box contains a solenoid to open the brake only when the motor is operating, the brake having a manual release to allow manual operation of the door.
In drawings which illustrate embodiments of the invention, Fig 1 is an isometric view of an explosion proof door operator according to one embodiment of the present in-vention.
Fig. 2 is an elevational view showing the inside of the control box from the door operatox of Fig. 1.
Fig. 3 is an elevational view of a weatherproof door operator according to another embodiment of the present invention.
Referring to Figs. 1 and 2, the door operator 10 comprises an explosion proof motor 11 with a V-belt pulley 12 on the motor shaft driving V-belt pulley 13 on an intermediate shaft 14 by means of V-belt 15. A chain drive 16 from the intermediate shaft 14 has an intermediate sprocket 17 mounted on shaft 18 and a further chain drive 19 drives sprocket 20 on output shaft 21 The output shaft 21 opens and closes the door and is supported on two pillow blocks 22 mounted on frame members 23 extending for the length of the door operator 10.
The control box 25 is mounted on the frame members 23 and is an explosion proof sealed container generally formed of cast aluminum, with a cover held to the box by a number of bolts S~3,5 which fit into tapped holes in the box flange. An cxplosion proof electrical conduit 26 leads from the box 25 to the explosion proof motor 11. The motor shaft has a brake 27 mounted thereon operated by a lever mechanism 28 connected to an arm 29 rotated by a shaft 30 entering the control box 25.
A manual release lever 31 on the other side of the door operator from the brake has a linkage (not shown) to allow the brake to be manually released when it is necessary to operate the door operator manually. Adjacent the manual release lever 31 is a chain sprocket 32 (as shown in Fig, 2) for a manual operated chain 33. When this door is operated by the manual chain 33 the manual release lever 31 for the brake is activated and the safety interlock switch disconnects power to the motor so the , power cannot be turned on when an operator is manually opening or closing the door.
A separate chain and sprocket system 35 from the intermediate shaft 18 is connected to shaft 36 entering the control box 25. The shaft 36 is supported in the control box 25 at the free end by a pillow block 37 and is threaded through-out lts length having two collars 38 positioned thereon, The collars 38 have grooves which slide in a channel or ridge provided on the base of the control box 25. Limit switches 39 are provided to be triggered by the collars 38 moving backwards and forwards on the threaded shaft 36, thus the limit switches can be positioned to set the open and shut locations of the door.
The control system is operated from a 24-volt trans-former 40 which in turn feeds a push button control station (not shown) operating motor control relays 41 for operation of the motor 11 in either direction. A solenoid 42 operates to rotate brake shaft 30 so that when the motor is powered to go in either direction the solenoid 42 is energized and the brake 27 is released. A safety interlock switch 43 has a linkage (not shown) l~t~7~t~
to brake release arm 31 so that if the door operator is manually used, the safety interlock switch is moved to the "off" posi-tion and the motor cannot accidentally be switched on.
As may be seen in Figs. 1 and 2 the electrical com-ponents with the exception of the operating push button control and the motor itself, are retained within the control box 25. Thus the only wiring required in the field is from the con$rol box 25 to the power supply and from the control box 25 to the push button control and the saving in explosion or weather proof type conduits is greatly reduced Furthermore, the limit switch arrangement, solenoid, transformer, control relays and interlock switch are all standard open components and do not have to be individually encased in explosion proof containers.
Fig. 3 shows another embodiment of a door operator having a weatherproof control box 25 and weatherproof conduit 26 between motor and control box 25. The embodiment of the door operator shown in Fig 3 is somewhat different to that shown in Fig, 1 but operates on substantially the same concept and the inside of the control box 25 is substantially the same as that shown in Fig 2.
Whereas a brake is shown in all the drawings it will be apparent to those skilled in the art that brakes are not always required in door operators and may be omitted in which case the solenoid 4Z is not required, however, an interlock switch is still included within the control box 25 to disconnect the power to the electric motor when the operator is manually operated Other embodiments include a manual overload relay which may be included within the control box 25, a friction clutch may be fitted on the shaft 15 to protect door and operator in case of obstruction, the clutch is adjustable to suit door size and weight.
Various changes may be made to the door operator 11~i5~
mechanism disclosed herein, but in all cases a single weather-proof or explosion proof control box is provided, Different types and sizes of door operators may be used depending on the requirements of a particular weight and size of door. The scope of the invention is limited only by the claims,
Claims (2)
1. In a commercial and industrial door operator having a weather proof or explosion proof electric motor mounted on a frame, the motor driving a sprocket connected to an output shaft for operating the door, the improvement comprising: a single weather proof or explosion proof control box containing motor control contactors, limit switch, and a safety interlock switch adapted to disconnect power to the electric motor and allow manual operation of the door.
2. The door operator according to claim 1 including a brake attached to the electric motor and wherein the control box contains a solenoid to open the brake only when the motor is operating, the brake having a manual release to allow manual operation of the door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000379030A CA1165785A (en) | 1981-06-04 | 1981-06-04 | Flame proof operator and control gear for commercial and industrial sliding door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000379030A CA1165785A (en) | 1981-06-04 | 1981-06-04 | Flame proof operator and control gear for commercial and industrial sliding door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1165785A true CA1165785A (en) | 1984-04-17 |
Family
ID=4120143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000379030A Expired CA1165785A (en) | 1981-06-04 | 1981-06-04 | Flame proof operator and control gear for commercial and industrial sliding door |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1165785A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5197582A (en) * | 1990-04-03 | 1993-03-30 | Northern Eureka Refrigeration Co. Limited | Electric door opener for sliding doors |
| US5529157A (en) * | 1993-12-30 | 1996-06-25 | Manaras Auto Doors Inc. | Combination brake and clutch assembly for electric motors |
| US7240582B1 (en) | 1993-12-23 | 2007-07-10 | Michel Manaras | Override device for allowing manual operation of a closure normally driven by an electric motor |
-
1981
- 1981-06-04 CA CA000379030A patent/CA1165785A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5197582A (en) * | 1990-04-03 | 1993-03-30 | Northern Eureka Refrigeration Co. Limited | Electric door opener for sliding doors |
| US7240582B1 (en) | 1993-12-23 | 2007-07-10 | Michel Manaras | Override device for allowing manual operation of a closure normally driven by an electric motor |
| US5529157A (en) * | 1993-12-30 | 1996-06-25 | Manaras Auto Doors Inc. | Combination brake and clutch assembly for electric motors |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |