GB2223097A - Safety device for a temperature responsive actuator - Google Patents

Safety device for a temperature responsive actuator Download PDF

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Publication number
GB2223097A
GB2223097A GB8919512A GB8919512A GB2223097A GB 2223097 A GB2223097 A GB 2223097A GB 8919512 A GB8919512 A GB 8919512A GB 8919512 A GB8919512 A GB 8919512A GB 2223097 A GB2223097 A GB 2223097A
Authority
GB
United Kingdom
Prior art keywords
piston
transmission lever
drive according
spring
housing
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.)
Granted
Application number
GB8919512A
Other versions
GB8919512D0 (en
GB2223097B (en
Inventor
Roland Saur
Friedrich Bauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Behr Thomson Dehnstoffregler GmbH and Co
Original Assignee
Behr Thomson Dehnstoffregler GmbH and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE8810989U external-priority patent/DE8810989U1/en
Priority claimed from DE8813925U external-priority patent/DE8813925U1/en
Application filed by Behr Thomson Dehnstoffregler GmbH and Co filed Critical Behr Thomson Dehnstoffregler GmbH and Co
Publication of GB8919512D0 publication Critical patent/GB8919512D0/en
Publication of GB2223097A publication Critical patent/GB2223097A/en
Application granted granted Critical
Publication of GB2223097B publication Critical patent/GB2223097B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • 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
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E05F15/71—Power-operated mechanisms for wings with automatic actuation responsive to temperature changes, rain, wind or noise
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32—Operating, guiding, or securing devices therefor
    • E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/10—Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat exchangers
    • F01P7/12—Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat exchangers by thermostatic control
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G05D23/021—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being a non-metallic solid, e.g. elastomer, paste
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G05D23/021—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being a non-metallic solid, e.g. elastomer, paste
    • G05D23/023—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being a non-metallic solid, e.g. elastomer, paste the sensing element being placed outside a regulating fluid flow
    • G—PHYSICS
    • G12—INSTRUMENT DETAILS
    • G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G12B1/00—Sensitive elements capable of producing movement or displacement for purposes not limited to measurement; Associated transmission mechanisms therefor
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Shutters For Cameras (AREA)
  • Transmission Devices (AREA)
  • Means For Warming Up And Starting Carburetors (AREA)
  • Actuator (AREA)

Abstract

A spring (20) is arranged in the transmission between a temperature responsive actuator and a driven element to allow the actuator to continue to extend without damage when the element reaches a stop position. The actuator turns a lever (24) connected via spring (20) to a member (17) connected to the driven element e.g. a shutter. Also acting on lever (24) is a return spring (14). Spring (20) may be placed between the actuator housing and its support allowing the housing to move backwards when the stop position is reached. <IMAGE>

Description

Drive for a shutter or the like The invention relates to a drive for a shutter or the like having a thermostatic working element, with an extendible piston which bears against a rotatably mounted transmission lever and is loaded by a return spring and the housing of which is supported on a shoulder.
With a drive of this type the piston is extended by the thermoplastic working element, depending on the temperature to which this working element is exposed, so that adjustment of one or a plurality of shutters or even of dampers or the like is effected by the piston movement.
The thermostatic working element contains in a housing a substance which expands on heating, particularly a wax.
With a drive of this type it must be ensured that, if the shutter or the like has already reached its end position and the thermostatic working element is heated further, the piston can continue to extend without any damage occurring.
The problem underlying the invention is to create a drive of the type mentioned in the introduction which has a compact and space-saving construction.
According to the present invention there is provided a drive for a shutter or the like having a thermostatic working element, with an extendible piston which bears against a rotatably mounted transmission lever and the housing of which is supported on a shoulder, wherein a coiled torsion spring acting as a return spring bears against the transmission lever which spring is arranged coaxially with respect to the axis of the transmission lever, and the transmission lever is associated with a stop which limits its rotary movement, a spring used for disengagement being arranged between the shoulder of the housing and the transmission lever.
On the strength of a torsion spring being used as a return spring, a compact construction is made possible whilst the second spring causes disengagement after the transmission lever comes into contact with the stop and thus permits an excess stroke of the piston when the temperature continues to rise.
In a first embodiment of the invention it is provided that the transmission lever be divided into two parts which are rotatable relative to one another about the axis of rotation of the transmission lever and of which one part is connected to transmission element and the other part to the piston, and that a freewheel which is preloaded in the operating position by means of spring force is provided between the two parts. In this embodiment the two parts of the transmission lever are moved conjointly in the range of adjustment of the shutter or the like without a relative movement taking place between them.If, however, the travel of the piston of the thermostatic working element exceeds a distance which, taking into account the transmission ratios, is greater than the possible regulating distance of the shutter or the like, a relative movement takes place between the two parts of the transmission lever so that this so-called excess stroke of the piston is absorbed.
In a further development of the invention it is provided that the return spring, which is in the form of a coiled torsion spring, be clamped between a fixed retaining element and that part of the trnsmission lever against which the piston bears. Because this torsion spring executes a rotary movement, the space requirement is relatively low; in particular, no additional constructional space is required in the extension of the thermostatic working element.
In a further development of the invention it is provided that a coiled torsion spring be clamped between the two parts of the transmission lever, the spring preloading the two parts which are supported against one another in the operating position by means of stop elements in this operating position. Also by doing this, no additional constructional space is required in the extension of the working element. A further achievement is that the two parts of the transmission lever occupy an operating position which is secured and therefore defined by stops and in which they move together over the adjustment range of the shutter or the like.
In a further development of the invention it is provided that the piston be guided in a slotted guideway of an extension of one part of the transmission lever.
This slotted guideway permits a relative movement between the extension and piston at right angles to the direction of movement of the piston. The piston is thus loaded only in its axial direction. At the same time it is also advantageous if the piston is provided with a driver which has a spherical outer surface facing the extension of one part of the transmission lever. This also improves the introduction of force into the working element because the force is introduced only in the axial direction of the piston.
In a further development of the invention it is provided that the end of the housing of the thermostatic working element which is remote from the piston be spherically shaped and supported in a domed guideway.
This design makes it possible to allow certain manufacturing tolerances without the risk of unacceptable loads occurring.
In another embodiment of the invention it is provided that the housing of the working element be slidably guided counter to the extending direction of the piston and retained in the operational position by an excess stroke spring. In this embodiment the overall size of the drive is determined essentially by the length of the thermostatic working element and the size of the transmission lever. The return spring, which is in the form of a coiled torsion spring, does not increase the overall length.
In another development of the invention there is provided a base plate on which the transmission lever and the thermostatic working element are supported. As a result, the entire drive is assembled to form a unit which can be fitted as such.
Other features and advantages of the invention emerge from the following description of two embodiments shown in the drawing.
Fig. 1 shows a partially broken away plan view of a drive according to the invention, Fig. 2 shows a section along the line II-II in Fig. 1, Fig. 3 shows a plan view of a further embodiment, and Fig. 4 shows a section along the line IV-IV in Fig. 3.
The drive shown in Figs. 1 and 2 serves for example to open and close two air flaps or shutters or the like which are connected via a transmission linkage to a transmission lever 13 provided with corresponding transmission heads 18 which form the points of articulation for the transmission levers. The transmission lever 13 executes a corresponding rotary movement about an axis of rotation 15. The maximum regulating distance of the transmission lever 13 and of the air flap or shutter or the like connected to this lever is limited, for example, to the area shown in Fig. 1 between the starting position shown by unbroken lines and the end position shown by dot-dash lines.
The transmission lever 13 is adjusted by way of thermostatic working element 10 which has a housing 12 containing a substance which expands on heating, particularly a wax which is selected for a specific temperature range. A piston 11, which bears against an extension 24 of the transmission lever 13 at a distance from its axis of rotation 15, is caused to extend out of the housing 12 by the expanding material. In order to make it possible to compensate for the transverse movement occurring between the linear movement of the piston 11 and the pivoting movement of the extension 24, the piston 11 is guided in a slotted guideway 23 which extends radially with respect to the axis of rotation 15. The piston 11 is provided with a driver 25 made for example of plastics material.This driver 25 has convex curved surface facing the extension 24.
The end of the housing 12 opposite the piston 11 has spherical design and is supported in a domed guideway 26 of a plate-shaped retaining element 19. Also attached to this spherical end is a pin 27 which is guided with play in a corresponding opening in the domed guideway 26. This makes it possible to allow tolerances without mobility being impaired.
It must be expected in practice that the thermostatic working element 10 continues to be heated after the transmission lever 13 and the shutter or the like connected thereto have already reached the end position. It must therefore be ensured that in this case the piston 11 can extend further out of the housing 12 without any damage occurring. This compensation for movement is made possible within the transmission lever 13 which is divided into two parts 16,17 between which there is arranged a freewheel which is preloaded by means of a spring force.
The two parts 16,17 of the transmission lever 13 are arranged rotatably on a shaft 29 which is fitted at right angles to the extending direction of the piston 11 in a recess in the retaining plate 19. The part 16 has the extension 24 against which bears the piston 11 of the working element 10. The part 17 supports the two transmission heads 18 on plates.
In its surface lying opposite the part 17, the part 16 is provided with an annular groove is a projection of the part 17, which projection is, direction, associated with the pin 22 and bears against this pin in the operative position in which the two parts 16,17 are rotated together. Arranged between the retaining plate 19 and the part 16 is a coiled torsion spring 14 acting as return spring which engages with its ends, on the one hand, in the retaining plates 19 and, on the other hand, in the extension 24 of the part 16. This torsion spring 14 is preloaded in such a manner that, with the decreasing temperature, it guides the piston 11 safely back into its starting position.
Arranged between the part 16 and the part 17 is another coiled torsion spring 20, the ends of which are inserted in recesses in the part 16 and the part 17. This torsion spring 20 retains the two parts 16,17 in the operational position in which the projection 21 bears against the pin 22. This torsion spring 20 is preloaded in such a manner that it is able to apply the forces necessary for adjusting the mechanism of the shutter or the like.
When the piston 11 is extended, it rotates by way of the extension 24 the part 16 in opposition to the action of the return spring 14. The part 17 is driven with the torsion spring 20 which retains the projection 21 on the pin 22. When in the preset end position the part 17 of the transmission lever moves into contact with a stop 28 projecting from the base plate 19 and is secured. If after reaching this end position, the piston 11 continues to extend, a relative movement takes place between the two parts 16, 17 of the transmission lever in opposition to the action of the torsion spring 20 without the part 17 being moved further. At the same time the projection 21 lifts clear of the pin 22.If the temperature decreases in the area of the thermostatic working element 10, the return spring which is in the form of the torsion spring 14 forces the piston 11 back into the housing 12, the parts 16, 17 moving in the reverse order from the preceding description.
A two-armed transmission lever 40 is mounted on a base plate 38 so as to be pivotable about a shaft 39.
Both arms of the transmission lever 40 are connected to transmission linkages or the like not shown in detail.
Offset axially towards the base plate 38, the transmission lever 40 is provided with another arm 30 which serves as the actuating arm. This arm 30 is provided with a forklike recess in which an extension piece 41 is articulated for rotary movement by means of a pin 31. The extension piece 41 is fitted on a piston 11 of a thermostatic working element 10. The transmission lever 40 is thus pivoted by the extending action of the piston 11.
The thermostatic working element 10 has a housing 12 which contains an expanding substance which expands depending on the temperature and which, upon a corresponding increase in temperature, forces the piston 11 out of the supporting slope and is fitted into a recess 44 in a bracket 43 attached to the base plate 38.
As can be seen in Fig. 1, the recess 44 has a certain clearance relative to the guide extension 42, at least in one plane, so that a radial movement towards the shaft 39 from the extension piece 41 of the piston 11, i.e, a pivoting movement of the entire working element, is possible. This compensating movement could obviously also be provided in the area between the extension piece 41 and the arm 30 of the actuating lever, for example, by providing the extension piece 41 with a bore of appropriate size.
In the area adjacent to the guide extension 42, the housing 12 has an annular collar 45 against which a spring 46 is supported, which spring is in the form of a coil spring and encloses the housing 12. That end of the spring 46 which lies opposite the annular collar 45 is retained in a guide ring 47 which is in the form of a sheet steel stamping. The guide ring 47 has a stepped cross-section. With its smaller diameter it is retained in a laterally open recess 48 in a plate 49 projecting from the base plate 38. The recess 48 has an approximately U-shaped form which is open away from the base plate 38. The guide ring 47 is pressed against the plate 49 by the preloaded spring 46. At the same time the guide ring 47 engages in an axial depression or recess in the plate 49 so that it is locked positively in the plate 49 to prevent radial displacement.
The transmission lever 40 is supported in its axial direction on an approximately cylindrical extension DO which projects from the base plate 38. Arranged in the area of this extension 50 is a torsion spring 51, one end 33 of which is retained between stops 34 of the base plate 38 and the other end of which is attached to the transmission lever 40, for example fitted in a bore. This torsion spring 51 serves as a return spring by which the working element is loaded so that, as the temperature decrea es, the piston 11 of the thermostatic working element 10 can be rest by way of the torsion spring 51 and the transmission lever 40. When in the reset cold end position, the end of the extension piece 41 is supported against the face of the guide extension 42 of the housing 12 of the working element so that the cold starting position is defined.Attached to the base plate 38 is a stop 37 against which the arm 30 of the transmission lever 16 is pressed as long as the working element 10 has still not been fitted. After installation of the working element 10 the arm 30 is clear of the stop 37 in all positions, even in the cold starting position. This stop 37 is only required for fitting.
The transmission lever 40 and the elements articulated thereon can be moved only as far as a maximum pivot position determined by a stop 52 which projects upward from the base plate 38 and in contact with which the arm 30 of the transmission lever 40 moves when the piston 11 is extended.
The base plate 38, together with the stop 52, the stop 37 the extension 50, the shaft 39, the bracket 43 and the plate 49 as well as the stops 34 which all project in the same direction, is made in the form of a die-cast part. The use of an aluminium die casting is preferred.
The base plate 38 is provided with at least two fastening holes 35.
By selecting the mixture of the expanding substance contained in the housing 12 of the working element 10, it is possible to determined the ambient temperature at which the piston 11 is forced out.
As can be seen from Fig. 2, there is provided in the area of the housing 12 of the working element a recess 36 through which air can flow towards the housing 12. The piston 11 extends out of the housing 12 depending onthe temperature attained and at the same time moves the transmission lever 40. If the maximum desired selected position is reached, the arm 30 of the transmission lever 40. If the maximum desired selected position is reached the arm 30 of the transmission lever 40 moves into contact with the stop 52. The possibility cannot be excluded that the temperature to which the housing 12 of the working element is exposed may rise even higher so that the piston will extend further. To make possible this extending action, the so-called excess stroke, it is provided that the housing 12 can move counter to the direction in which the piston is extended. At the same time the housing 12 can be displaced in opposition to the action of the spring 46, as indicated in Fig. 1.
As in the case of the torsion spring D1, the spring 46 is preloaded to a preset value. The torsion spring 51 is designed and preloaded in such a manner that it forces the piston 11 safely back into the starting position, i.e, the position at low temperature. The spring 46 is preloaded in such a manner that the force applied by the torsion spring 51 is not sufficient to compress the spring 46. Movement of the housing 12 in opposition to the force of the spring 46 only takes place if the transmission lever 40 has moved with its arm 30 into contact with the stop 52 and the piston 11 has been forced further out of the housing 12.

Claims (19)

CLAIMS:
1. A drive for a shutter or the like having a thermostatic working element, with an extendible piston which bears against a rotatably mounted transmission lever and the housing of which is supported on a shoulder, wherein a coiled torsion spring acting as a return spring bears against the transmission lever which spring is arranged coaxially with respect to the axis of the transmission lever, and the transmission lever is associated with a stop which limits its rotary movement, a spring used for disengagement being arranged between the shoulder of the housing and the transmission lever.
2. A drive according to claim 1, wherein the transmission lever is divided into two parts which are rotatable towards one another about the axis of rotation of the transmission lever and of which one part is connected to transmission element and the other part to the piston, and a freewheel which is preloaded in the operative position by means of spring force is provided between the two parts.
3. A drive according to claim 2, wherein the return spring, which is in the form of a coiled torsion spring, is clamped between a fixed retaining element and the part of the transmission lever against which the piston bears.
4. A drive according to claim 2 or 3, wherein a coiled torsion spring is clamped between the two parts of the transmission lever, which spring preloads the two parts which are supported against one another in the operating position by means of stop elements in this operating position.
5. A drive according to any one of claims 2 to 4, wherein the piston is guided in a slotted guideway of an extension of one part of the transmission lever.
6. A drive according to any one of claims 2 to D, wherein the piston is provided with a drive which has a spherical outer surface facing the extension of one part of the transmission lever.
7. A drive according to any one of claims 2 to 6, wherein the end of the housing of the thermostatic working element which is remote from the piston is spherically shaped and supported in a domed guideway.
8. A drive according to claim 7, wherein the end of the housing is provided with a pin which is coaxial with the piston and engages in an opening in the domed guideway.
9. A drive according to claim 1, wherein the housing of the working element is slidably guided counter to the extending direction of the piston and retained in the operational position by the spring.
10. A drive according to claim 9, wherein there is provided a base plate on which the transmission lever and the thermostatic working element are supported.
11. A drive according to claim 9 or 10, wherein the base plate is provided with a stud-like extension which is enclosed by the torsion spring and is continued with the shaft of the transmission lever.
12. A drive according to any one of claims 9 to 11, wherein the thermostatic working element, together with a guide extension concentric with the piston, is fitted into a recess in a bracket projecting from the base plate.
13. A drive according to any one of claims 9 to 12, wherein the end of the housing lying opposite the guide extension concentric with the piston is guided in a guide ring which is retained in a laterally open recess in another plate projecting from the base plate.
14. A drive according to any one of claims 9 to 13, wherein the guide ring is locked positively in the radial direction in the recess of the plate.
15. A drive according to any one of claims 9 to 14, wherein the spring encloses the housing of the thermostatic working element and is clamped between an annular collar of the housing and the guide ring.
16. A drive according to any one of claims 9 to 1D, wherein an extension piece, on which the transmission lever is articulated and which is supported in an end position against the guide extension concentric with the piston, is fitted on the piston of the working element.
17. A drive according to any one of claims 9 to 16, wherein the stop projects from the base plate.
18. A drive according to any one of claims 9 to 17, wherein the base plate is manufactured in the form of a die-cast part on to which one or two stops, the stud-like extension and/or the shaft and/or the plates are integrally formed.
19. A drive for a shutter or the like having a thermostatic working element, substantially as described herein with reference to, and as illustrated in, Figures 1 and 2 or Figures 3 and 4 of the accompanying drawings.
GB8919512A 1988-08-31 1989-08-29 Drive for a shutter or the like Expired - Lifetime GB2223097B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8810989U DE8810989U1 (en) 1988-08-31 1988-08-31 Drive for a flap or similar.
DE8813925U DE8813925U1 (en) 1988-11-08 1988-11-08 Drive for a flap or similar.

Publications (3)

Publication Number Publication Date
GB8919512D0 GB8919512D0 (en) 1989-10-11
GB2223097A true GB2223097A (en) 1990-03-28
GB2223097B GB2223097B (en) 1992-12-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB8919512A Expired - Lifetime GB2223097B (en) 1988-08-31 1989-08-29 Drive for a shutter or the like

Country Status (3)

Country Link
ES (1) ES2014870A6 (en)
FR (1) FR2636465B1 (en)
GB (1) GB2223097B (en)

Cited By (4)

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US5276433A (en) * 1991-04-11 1994-01-04 Brissco Equipment Limited Methods and apparatus for temperature sensing
DE10047160A1 (en) * 2000-09-22 2002-04-18 Ranco Inc Of Delaware Wilmingt Low-hysteresis thermostat e.g. for use in refrigerator, comprises thermal expansion unit acting on lever assembly with springs to provide bias and increase sensitivity
EP1744006A2 (en) * 2005-07-13 2007-01-17 Norsk Hydro Asa Device for controlling the sun protection of facades, windows doors or the like
WO2008035158A2 (en) * 2006-09-21 2008-03-27 Itw Automotive Products Gmbh & Co. Kg Device for the actuation of a valve

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FR2784418B1 (en) * 1998-10-07 2001-10-26 Valeo Thermique Moteur Sa AIR FLOW ADJUSTMENT DEVICE, PARTICULARLY FOR A MOTOR VEHICLE HEAT EXCHANGER

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GB857255A (en) * 1958-03-20 1960-12-29 Air Maze Corp Temperature controlled air filter
GB881132A (en) * 1959-10-21 1961-11-01 American Radiator & Standard A thermally actuated valve
GB1049163A (en) * 1963-03-08 1966-11-23 Franz Xaver Baumeister G M B H Thermostatic temperature regulator

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US2781979A (en) * 1955-07-13 1957-02-19 Dole Valve Co Thermo-magnetic refrigerant valve
GB896364A (en) * 1959-07-22 1962-05-16 Gen Motors Corp Improvements in and relating to thermo-responsive valves
FR1514350A (en) * 1967-01-12 1968-02-23 Legris Thermostatic valve
US4026465A (en) * 1974-10-15 1977-05-31 Ogontz Controls Company, Inc. Temperature-sensitive snap-action valve

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Publication number Priority date Publication date Assignee Title
GB293930A (en) * 1927-05-03 1928-07-19 Georges Gaston Royer Improvements in or relating to thermostats
GB857255A (en) * 1958-03-20 1960-12-29 Air Maze Corp Temperature controlled air filter
GB881132A (en) * 1959-10-21 1961-11-01 American Radiator & Standard A thermally actuated valve
GB1049163A (en) * 1963-03-08 1966-11-23 Franz Xaver Baumeister G M B H Thermostatic temperature regulator

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5276433A (en) * 1991-04-11 1994-01-04 Brissco Equipment Limited Methods and apparatus for temperature sensing
DE10047160A1 (en) * 2000-09-22 2002-04-18 Ranco Inc Of Delaware Wilmingt Low-hysteresis thermostat e.g. for use in refrigerator, comprises thermal expansion unit acting on lever assembly with springs to provide bias and increase sensitivity
DE10047160C2 (en) * 2000-09-22 2002-10-31 Ranco Inc Of Delaware Wilmingt Thermostat device with reduced hysteresis
EP1744006A2 (en) * 2005-07-13 2007-01-17 Norsk Hydro Asa Device for controlling the sun protection of facades, windows doors or the like
EP1744006A3 (en) * 2005-07-13 2012-06-20 Norsk Hydro Asa Device for controlling the sun protection of facades, windows doors or the like
WO2008035158A2 (en) * 2006-09-21 2008-03-27 Itw Automotive Products Gmbh & Co. Kg Device for the actuation of a valve
WO2008035158A3 (en) * 2006-09-21 2008-07-10 Itw Automotive Prod Gmbh & Co Device for the actuation of a valve
US8070126B2 (en) 2006-09-21 2011-12-06 Itw Automotive Products Gmbh & Co. Kg Device for actuation of a valve

Also Published As

Publication number Publication date
FR2636465A1 (en) 1990-03-16
ES2014870A6 (en) 1990-07-16
GB8919512D0 (en) 1989-10-11
GB2223097B (en) 1992-12-02
FR2636465B1 (en) 1994-04-15

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