GB1021552A - Improvements in or relating to braking mechanisms - Google Patents
Improvements in or relating to braking mechanismsInfo
- Publication number
- GB1021552A GB1021552A GB31896/62A GB3189662A GB1021552A GB 1021552 A GB1021552 A GB 1021552A GB 31896/62 A GB31896/62 A GB 31896/62A GB 3189662 A GB3189662 A GB 3189662A GB 1021552 A GB1021552 A GB 1021552A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shoe
- cage
- spring
- link
- roller
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
- F16D63/008—Brakes acting on a linearly moving member
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
- A62B1/14—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brakes sliding on the rope
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
- B66B5/046—Mechanical overspeed governors of the pendulum or rocker arm type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2812/00—Indexing codes relating to the kind or type of conveyors
- B65G2812/02—Belt or chain conveyors
- B65G2812/02009—Common features for belt or chain conveyors
- B65G2812/02099—Safety measures in case of driving element breakage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D2069/004—Profiled friction surfaces, e.g. grooves, dimples
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Braking Arrangements (AREA)
Abstract
1,021,552. Safety brakes for lift cages. A. LODIGE. Aug. 20, 1962 [Aug. 18, 1961], No. 31896/62. Heading B8L. [Also in Division F2] A safety brake mounted on a lift cage or the like comprises two brake shoes interconnected by a link and adapted to be applied against opposite sides of a guide by tilting of the link to brake the cage upon a predetermined value of a parameter, such as the speed of the cage, being exceeded wherein one brake shoe is connected with an initiating device and the other brake shoe is attached to the cage through the intermediary of a pre-stressed spring, the arrangement being such that the brake shoes transmit a high initial braking force which is subsequently decreased, but not reduced to zero. In the embodiment shown in Fig. 1, one brake shoe 5 has a conical surface 7, which is urged downwardly into a recess 8 in the cage 2 by a spring 9, and is pivotedly connected at 12 to a link 11 provided with a roller 14 which engages wedge surfaces 16, 20 on a brake shoe 15. A speed-responsive device 18 mounted on the cage and engaging the guide 1 raises the shoe 15 by means of a link 19 when a predetermined speed is attained. In the inoperative position, the link 11 is supported by the shoe 5 and by an adjustable stop 4 and the base 96 of the shoe 15 rests in a recess 97 in the cage chassis so that the shoe is displaced away from the guide 1 and the roller 14 is disposed at the upper end of the wedge surface 16. When the braking operation is initiated, the link 19 raises the shoe 15 relative to the link 11 and the roller 14 rolls down the wedge surface 16 and moves the shoe into engagement with the guide 1. During this movement, the link 11 is tilted and pulled bodily to the right, as shown, and raises the shoe 5 against the action of the spring 9 into engagement with the guide. When the shoe 15 engages an abutment 3 on the cage, the braking becomes self-regulating in dependence upon the adjusted force of the spring 9. In a modification, Fig. 2 (not shown), the roller 14 is replaced by a two-arm lever provided at one end with a roller engaging the wedge surface 16 and at the other end with friction teeth engaging the guide 1, and the shoe 5 is pivotally mounted on an upright fork member which is urged downwardly by the spring 9. The lower end of the shoe 15 is provided with balls which are spring-urged against the guide 1 for cleaning the guide. In a further modification, Fig. 3 (not shown), three further brake shoes are connected by links between the two original brake shoes. In the embodiment shown in Fig. 6, one shoe 205 is urged downwardly by a spring and is provided with a cam surface 206 on which runs a roller 208 provided on the other shoe 209, the shoes being pivotally connected by a link 203. An acceleration-responsive device, Fig. 20, for initiating the braking action comprises a weight Q supported by a spring 53 on the cage 2. On a sudden increase in speed, the spring is extended or compressed and the relative movement of the weight Q is transmitted through a linkage 55, 56 to a double-wedge shoe 87 coupled to a spring mounted shoe 87<SP>1</SP>. A speed-responsive device, Fig. 9 (not shown) comprises a cam wheel rotatable with a wheel engaging the guide and engageable by a roller mounted on a. pivoted arm, the arrangement being such that when a critical speed is attained, the radial deflection of the roller causes engagement of a pawl with a ratchet wheel on the same axle thereby swinging the support of the pivoted arm about the axle and initiating the operation of the brake through a linkage. An alternative speed-responsive device, Fig. 27, comprises an arm 275, supporting a roller 278 running on the guide surface 279, pivoted on the cage 277. A two-arm lever 263 is pivoted at 265 on the arm 275 and supports a roller 262 which is spring- urged against a cam 260. When the cage attains a predetermined critical speed, the radial displacements of the lever 263 become sufficiently large for a spring-supported detent 270 on the other end of lever 263 to engage teeth 261 formed on the cam 260, the lever 263 with the arm 275 pivot about the pivot point of the latter on the cage and thereby raise a link 272 to initiate the braking action. A further speed-responsive device, Fig. 24 (not shown), comprises a plate, pivoted to the cage about a horizontal axis and provided with a counterweight so dimensioned that when the cage attains a predetermined speed, the air flow pivots the plate which is coupled to one of the brake shoes by a linkage. An electromagnetic speed-responsive device, Fig. 25 (not shown), is also described.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL0039812 | 1961-08-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1021552A true GB1021552A (en) | 1966-03-02 |
Family
ID=7268810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB31896/62A Expired GB1021552A (en) | 1961-08-18 | 1962-08-20 | Improvements in or relating to braking mechanisms |
Country Status (6)
Country | Link |
---|---|
AT (2) | AT255696B (en) |
BE (1) | BE621571A (en) |
CH (1) | CH422263A (en) |
FR (1) | FR1346282A (en) |
GB (1) | GB1021552A (en) |
NL (1) | NL282231A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SG91944A1 (en) * | 2000-12-07 | 2002-10-15 | Inventio Ag | Safety brake and method for unlocking a safety brake |
CN102939477A (en) * | 2010-06-04 | 2013-02-20 | 丰田自动车株式会社 | Break device, friction couple and break pad for brake system |
EP2562464A1 (en) * | 2011-08-26 | 2013-02-27 | Strasser Maschinenbau GmbH | Locking device |
EP2636626A1 (en) * | 2010-11-01 | 2013-09-11 | Mitsubishi Electric Corporation | Elevator device |
EP2695841A1 (en) * | 2011-04-01 | 2014-02-12 | Mitsubishi Electric Corporation | Elevator device |
CN107500075A (en) * | 2017-08-18 | 2017-12-22 | 刘英辉 | A kind of Lift car type elevator speed-limiting device |
CN109650212A (en) * | 2019-01-21 | 2019-04-19 | 日立电梯(中国)有限公司 | Safety guard, elevator security control method and elevator |
CN113753709A (en) * | 2021-11-09 | 2021-12-07 | 舒马克电梯(张家港)有限公司 | Traction drive passenger elevator with power failure protection function |
US20220274813A1 (en) * | 2019-07-24 | 2022-09-01 | Columbus Mckinnon Industrial Products Gmbh | Lifting gear |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL180575C (en) * | 1980-03-12 | 1987-03-16 | Reus B V De | SECURITY MECHANISM FOR AN ELEVATOR OR SIMILAR TRANSPORTATION DEVICE. |
CN106698141B (en) * | 2017-02-08 | 2022-04-29 | 苏州莱茵电梯股份有限公司 | Safety speed reducer for inclined elevator |
CN108516358B (en) * | 2018-03-19 | 2020-09-15 | 中国神华能源股份有限公司 | Spiral arm anti-falling device and spiral car unloader |
CN114135606B (en) * | 2021-11-28 | 2022-09-02 | 江苏畅动新能源科技有限公司 | Brake with automatic displacement compensation structure |
-
0
- BE BE621571D patent/BE621571A/xx unknown
- NL NL282231D patent/NL282231A/xx unknown
-
1962
- 1962-08-16 AT AT660562A patent/AT255696B/en active
- 1962-08-16 AT AT43565A patent/AT253165B/en active
- 1962-08-17 FR FR907219A patent/FR1346282A/en not_active Expired
- 1962-08-18 CH CH983562A patent/CH422263A/en unknown
- 1962-08-20 GB GB31896/62A patent/GB1021552A/en not_active Expired
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SG91944A1 (en) * | 2000-12-07 | 2002-10-15 | Inventio Ag | Safety brake and method for unlocking a safety brake |
US6758310B2 (en) | 2000-12-07 | 2004-07-06 | Inventio Ag | Safety brake and method for unlocking a safety brake |
CN102939477A (en) * | 2010-06-04 | 2013-02-20 | 丰田自动车株式会社 | Break device, friction couple and break pad for brake system |
US9505587B2 (en) | 2010-11-01 | 2016-11-29 | Mitsubishi Electric Corporation | Elevator with acceleration detection |
EP2636626A1 (en) * | 2010-11-01 | 2013-09-11 | Mitsubishi Electric Corporation | Elevator device |
EP2636626A4 (en) * | 2010-11-01 | 2014-11-26 | Mitsubishi Electric Corp | Elevator device |
EP2695841A1 (en) * | 2011-04-01 | 2014-02-12 | Mitsubishi Electric Corporation | Elevator device |
EP2695841A4 (en) * | 2011-04-01 | 2014-11-19 | Mitsubishi Electric Corp | Elevator device |
US9546074B2 (en) | 2011-04-01 | 2017-01-17 | Mitsubishi Electric Corporation | Elevator apparatus including an anomalous acceleration detecting mechanism |
EP2562464A1 (en) * | 2011-08-26 | 2013-02-27 | Strasser Maschinenbau GmbH | Locking device |
CN107500075A (en) * | 2017-08-18 | 2017-12-22 | 刘英辉 | A kind of Lift car type elevator speed-limiting device |
CN107500075B (en) * | 2017-08-18 | 2018-08-14 | 刘英辉 | A kind of Lift car type elevator speed-limiting device |
CN109650212A (en) * | 2019-01-21 | 2019-04-19 | 日立电梯(中国)有限公司 | Safety guard, elevator security control method and elevator |
US20220274813A1 (en) * | 2019-07-24 | 2022-09-01 | Columbus Mckinnon Industrial Products Gmbh | Lifting gear |
US11999600B2 (en) * | 2019-07-24 | 2024-06-04 | Columbus Mckinnon Industrial Products Gmbh | Lifting gear |
CN113753709A (en) * | 2021-11-09 | 2021-12-07 | 舒马克电梯(张家港)有限公司 | Traction drive passenger elevator with power failure protection function |
Also Published As
Publication number | Publication date |
---|---|
DE1406199B2 (en) | 1972-08-31 |
FR1346282A (en) | 1963-12-20 |
BE621571A (en) | |
DE1406199A1 (en) | 1969-10-02 |
NL282231A (en) | |
CH422263A (en) | 1966-10-15 |
AT255696B (en) | 1967-07-10 |
AT253165B (en) | 1967-03-28 |
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