WO2008027018A1 - Diaphragm piston brake actuators with tamper resistant canister connections - Google Patents

Diaphragm piston brake actuators with tamper resistant canister connections Download PDF

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Publication number
WO2008027018A1
WO2008027018A1 PCT/TR2006/000074 TR2006000074W WO2008027018A1 WO 2008027018 A1 WO2008027018 A1 WO 2008027018A1 TR 2006000074 W TR2006000074 W TR 2006000074W WO 2008027018 A1 WO2008027018 A1 WO 2008027018A1
Authority
WO
WIPO (PCT)
Prior art keywords
canister
adapter plate
connection
tamper resistant
sections
Prior art date
Application number
PCT/TR2006/000074
Other languages
French (fr)
Inventor
Ahmet Akin
Yavuz Battal
Mustafa Evren Baykara
Original Assignee
Arfesan Arkan Fren Elemanlari Sanayi Ve Ticaret A. S
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 TR2006/04675A external-priority patent/TR200604675A2/en
Priority claimed from TR2006/07188A external-priority patent/TR200607188A2/en
Application filed by Arfesan Arkan Fren Elemanlari Sanayi Ve Ticaret A. S filed Critical Arfesan Arkan Fren Elemanlari Sanayi Ve Ticaret A. S
Publication of WO2008027018A1 publication Critical patent/WO2008027018A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/08—Brake cylinders other than ultimate actuators
    • B60T17/085—Spring loaded brake actuators
    • 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
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/28—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged apart from the brake
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • F16D2121/12—Fluid pressure for releasing a normally applied brake, the type of actuator being irrelevant or not provided for in groups F16D2121/04 - F16D2121/10

Definitions

  • This invention is related to new designs that may be used in the assembling of the parts belonging to upper housing placed in the service chamber and to the canister placed in the park chamber of the spring brake actuators with the adapter plate.
  • Spring brake actuators are generally categorized in two main types, i.e. diaphragm - diaphragm spring brake actuators and diaphragm-piston spring brake actuators.
  • the subject of this invention that is tamper resistant canister connections, is related to the diaphragm-piston type of spring brake actuators.
  • Spring brake actuators used in heavy commercial vehicles (HCV) (truck, tractor trailer, trailer, bus, etc.,) consists of service brake chamber, which is operated under normal drive conditions, and park chamber which is operated in case of air leakage or deliberate release of air (pulling up the handbrake). While the service chamber operates when the speed of the vehicle is reduced or the vehicle is stopped, park chamber is in charge when the vehicle is fixed. In other words, application of force on the foot brake activates the service chamber whereas application of force on the handbrake activates the park chamber.
  • HCV heavy commercial vehicles
  • Park chamber is the section which is formed by the connection of the adapter plate with the canister through any shape connection.
  • Park chamber consists of a heavy compression spring and a piston. While the vehicle is under the way, there is air in the park chamber which is constantly provided by compressor. This air is kept in the upper section of the piston and provides the emergency spring to be compressed. In case of pressure drop in the vehicle due to any reason or when the vehicle is to be fixed (when the hand brake is pulled) the air pressure on the piston decreases or completely removes. Then the piston cannot compress the spring and the spring is released. Following the release of the spring, the force is transmitted to the shaft in the service chamber through piston pipe and from here to the wheels of the vehicle.
  • connection types are developed in a manner to eliminate possible dangerous situations. With the connection types that are designed tamper resistant connection applications that may prevent remounting processes are presented.
  • the connection between canister and adapter plate in Diaphragm/Piston spring brake actuators is provided in two different methods with the bolts:
  • connection section parallel to the floor around the connection surface of canister with the adapter plate. There are some holes on this connection section. Connection section of an adapter plate has an opposite of these hole. These holes on the adapter plate and canister are combined after matching each other, and the connection is provided through the bolts as displayed in Figure 1.
  • connection section there is no connection section on the canister.
  • connection types which are provided with bolts can be dismantled by the users despite the warning on the products and measures taken. Unless dismantling processes are fulfilled by authorized persons dangerous situations may arise. Through the designs in scope of this invention, dismantling of the connection is rendered impossible even when desired.
  • connection element such as bolt or connections which are tamper resistant even if they are
  • This invention is a safer design logic provided for present connection types between adapter plate and canister.
  • Canister connections that are tamper resistant on diaphragm piston brake actuators which have been developed with this invention, are realized through shape connection by means of design modifications on the adapter plate and canister.
  • FIG. 3 a present spring brake actuator (brake actuator) design which is implemented in the known technique in Diaphragm-Piston type is displayed.
  • the connection of adapter plate (1) and canister (3) is established through peripheral bolts (5).
  • Emergency spring (2) is compressed by means of the air transmitted to park chamber (6) between piston (4) and canister (3).
  • This spring (2) provides the force necessary for braking when the air in the park chamber (6) is released. Since braking force is provided by the spring (2), it has a strong force value.
  • connection element such as bolts (5) which are possible to be unscrewed are not used
  • fixing bolt (22) was used in some of the designs (6 th Design).
  • this bolt only has the characteristics of fixing and it is not possible to unscrew the connection even if this bolt is dismantled.
  • Diaphragm piston brake actuators with tamper resistant canister connections developed in Design 1 is characterized with square or rectangular sections (7) which have been formed at certain intervals along its peripheral in the connection point of canister (2) with adapter plate
  • the sections which are similar to rampart of a castle might be square or rectangular in shape, or have other geometric forms such as elliptic, circular or polygon.
  • Diaphragm piston brake actuator tamper resistant canister connection developed in Design 2 is characterized with square or rectangular sections (7) which have been formed at certain intervals along its peripheral in the connection point of canister (2) with adapter plate (1) and on the canister (3) and by laying the sections on the adapter plate by pressing it inwards after mounting the adapter plate (1) on the canister (3), and in return for that, making available empty sections (8) (clefts) through which these sections (7) can pass and which are the same in number with the sections, and placing the square or rectangular sections (7) which are present on the canister (3) to the adapter plate (1) by pressing them inward after they are inserted in a manner that they can be passed through the holes (8) on the adapter plate.
  • the sections which are similar to rampart of a castle might be square or rectangular in shape, or have other geometric forms such as elliptic, circular or polygon.
  • FIGs 10, 11 and 12 another design of tamper resistant connection is displayed.
  • the process is, in general terms, the work of bending the certain sections of the canister (1) on the adapter plate (1).
  • clefts (9) have been opened above and below at certain intervals along the surface where canister (3) combines with adapter plate (9).
  • Peripheral of the adapter plate (1) has been indented (10) in order to ensure that these clefts (9) bent on the adapter plate.
  • F Force displayed in Figure 10 is applied to the metal (11) between the clefts (9), and finally bending process is established.
  • section drawing of the metal component (11) which has been applied bending process is displayed.
  • Design 3 is characterized with opening clefts (9) above and below to the surface where canister (3) combines the adapter plate (1) at certain intervals around its peripherals, with opening indent (10) of adapter plate (1) in order to ensure that these clefts (9) are bent on the adapter plate (1), and with fulfilling the bending process to the indent of the adapter plate (10) by applying force (pressure) to the metal (11) between the clefts (9) after the canister (3) and adapter plate (1) are combined.
  • the clefts below and above (9) might be square or rectangular in shape, or have other geometric forms such as elliptic, circular or polygon.
  • Diaphragm piston brake actuator tamper resistant canister connection developed in
  • Design 4 is characterized with additional components named dagger as well as adapter plate
  • Daggers (12) might be square or rectangular in shape, or have other geometric forms such as elliptic, circular or polygon.
  • Design 5 In the design seen in Figure 16, a component named ring is (15) is used as in the previous design; in addition, there is a connection section (14) on the canister (3). There are rectangular notches (16) on the ring (15) component. Notches (17) have been designed on the adapter plate (1) in a manner that they match with these notches (16). While the connection is established, first the ring (15) is passed around the canister (3) and based on the connection section (14) of the canister (3). Then, the notches (16) on the ring are passed through the gap between two notches (17) on the adapter plate (1), and canister (3) is based on the adapter plate (1).
  • Diaphragm piston brake actuators with tamper resistant canister connections which have been developed in Design 5 are characterized with ring (15), connection section (14) on the canister (3), preferably rectangular section notches (16) on ring part (15), notches (17) which are placed at certain intervals on adapter plate (1) in a manner that matches these notches (16), key holes (18), pin holes (19) and pin.
  • the notches (16) on ring component and notches (17) on adapter plate (1) might preferably be square or rectangular in shape, or have other geometric forms such as elliptic, circular or polygon.
  • This long section (21) of the canister (3) completely surrounds the adapter plate (1) except the air intakes (23).
  • This section (21) which surrounds the adapter plate (1) is bent onto the adapter plate (1) by means of a pulley which applies F Force determined before.
  • this long section (21) is roll formed onto the adapter plate (1).
  • the roll forming process is applied to whole section except for the part between air intakes (23).
  • the part between the air intakes (23) does not have the long section (21) which shall be bent onto the adapter plate (1).
  • the canister (3) may turn around the adapter plate (1).
  • a bolt (22) is mounted between the air intakes (23) so that this possibility is eliminated and the connection between adapter plate (1) and canister (3) is established safely.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Braking Arrangements (AREA)

Abstract

Diaphragm piston brake actuator tamper resistant canister connection developed with this invention is characterized in that; • There are sections which are similar to the rampart of a castle in the connection point of canister with adapter plate and on the canister and the sections on the adapter plate is laid by pressing it inwards after mounting the adapter plate on the canister, or • There are sections which are similar to the rampart of a castle at certain intervals at the peripherals of the canister and corresponding slots at certain intervals around the peripherals on the connection surface of adapter plate, or • There are indents at certain levels among on and under the peripherals of the connection point of the canister with the adapter plate and stages at the peripherals of the adapter plate,or • There are ring, connection points, notches on the ring, notches placed at certain intervals on the adapter plate, key holes, pin holes and pin, or • The section of the upper section (21) of the canister (3) except for the part between the air intakes (23) is longer than the level of connection section of adapter plate (20); after adapter plate (1) is placed on the canister (3) this long section (21) of the canister (3) is roll formed onto the adapter plate (1) by means of a pulley and this roll forming process is applied to whole section except for the part between air intakes (23); and a bolt (22) is mounted between the air intakes (23).

Description

DIAPHRAGM PISTON BRAKE ACTUATORS WITH TAMPER RESISTANT
CANISTER CONNECTIONS
FIELD OF INVENTION
This invention is related to new designs that may be used in the assembling of the parts belonging to upper housing placed in the service chamber and to the canister placed in the park chamber of the spring brake actuators with the adapter plate.
PRIORART Spring brake actuators are generally categorized in two main types, i.e. diaphragm - diaphragm spring brake actuators and diaphragm-piston spring brake actuators. The subject of this invention, that is tamper resistant canister connections, is related to the diaphragm-piston type of spring brake actuators.
Spring brake actuators used in heavy commercial vehicles (HCV) (truck, tractor trailer, trailer, bus, etc.,) consists of service brake chamber, which is operated under normal drive conditions, and park chamber which is operated in case of air leakage or deliberate release of air (pulling up the handbrake). While the service chamber operates when the speed of the vehicle is reduced or the vehicle is stopped, park chamber is in charge when the vehicle is fixed. In other words, application of force on the foot brake activates the service chamber whereas application of force on the handbrake activates the park chamber.
Park chamber is the section which is formed by the connection of the adapter plate with the canister through any shape connection. Park chamber consists of a heavy compression spring and a piston. While the vehicle is under the way, there is air in the park chamber which is constantly provided by compressor. This air is kept in the upper section of the piston and provides the emergency spring to be compressed. In case of pressure drop in the vehicle due to any reason or when the vehicle is to be fixed (when the hand brake is pulled) the air pressure on the piston decreases or completely removes. Then the piston cannot compress the spring and the spring is released. Following the release of the spring, the force is transmitted to the shaft in the service chamber through piston pipe and from here to the wheels of the vehicle.
The fact that emergency spring located between piston and canister on the park chamber of spring brake actuator is a rather heavy spring requires it to be conserved safely. In i case that an inexperienced and ill-informed technician intervenes the actuator, dangerous situations may arise. In this invention, connection types are developed in a manner to eliminate possible dangerous situations. With the connection types that are designed tamper resistant connection applications that may prevent remounting processes are presented. The connection between canister and adapter plate in Diaphragm/Piston spring brake actuators is provided in two different methods with the bolts:
In one of these connection types, there is a connection section parallel to the floor around the connection surface of canister with the adapter plate. There are some holes on this connection section. Connection section of an adapter plate has an opposite of these hole. These holes on the adapter plate and canister are combined after matching each other, and the connection is provided through the bolts as displayed in Figure 1.
In the other connection type, there is no connection section on the canister. There are slots at certain intervals around the peripherals on the connection surface of adapter plate with the canister. Screw slots are opened on the adapter plate matching these intervals. The connection between adapter plate and canister is established through the bolts placed in the screw slots after matching the mentioned screw slots and holes.
Such connection types which are provided with bolts can be dismantled by the users despite the warning on the products and measures taken. Unless dismantling processes are fulfilled by authorized persons dangerous situations may arise. Through the designs in scope of this invention, dismantling of the connection is rendered impossible even when desired.
THE AIM OF THE INVENTION
In developing diaphragm piston brake actuators with tamper resistant canister connections, which has been developed with this invention, it was aimed;
• To develop tamper resistant connections which are not connection element such as bolt or connections which are tamper resistant even if they are,
• To develop tamper resistant adapter plate - canister connections (undismountable),
• to ensure prevention of hazardous situations. DESCRIPTION OF THE FIGURES
The description of the figures which are prepared in order to better explain the diaphragm piston brake actuators with tamper resistant canister connections, which have been developed with this invention, are given below.
Figure 1 - Connection type concerning the present Diaphragm / Piston Spring Brake Actuator
Figure 2 - Connection type concerning present Diaphragm / Piston Spring Brake Actuator
Figure 3 - Section drawing of the internal structure of spring brake actuator
Figure 4 - Three-dimensional photo of Design 1 Figure 5 - Section drawing of Design 1
Figure 6 - Section drawing of Design 1
Figure 7 - Section drawing of Design 2
Figure 8 - Section drawing of Design 2
Figure 9 - Three-dimensional photo of Design 2 Figure 10- Section drawing of Design 3
Figure 11- Section drawing of Design 3
Figure 12- Three-dimensional photo of Design 3
Figure 13- Section drawing of Design 4
Figure 14- Section drawing of Design 4 Figure 15- Three-dimensional photo of Design 4
Figure 16- Exploded view of Design 5
Figure 17- Section drawing of Design 6
Figure 18- Section drawing of Design 6
Figure 19- Section drawing of Design 6 Figure 20- Three-dimensional photo of Design 6
Figure 21- Three-dimensional photo of Design 6 DESCRIPTION OF THE PARTS-SECTIONS- OF THE INVENTION
The description of the parts- sections- components which are covered in the figures that are prepared in order to better explain the diaphragm piston brake actuators with tamper resistant canister connections, which have been developed with this invention, are given below.
1. Adapter plate
2. Emergency spring 3. Canister
4. Piston
5. Connection Bolt
6. Park chamber
7. Rectangular Sections on the canister (1st Design) 8. Adapter plate gaps through which rectangular sections will pass (2nd Design)
9. Clefts on the canister (3rd Design)
10. Indent of adapter plate (3rd Design)
11. The section on the canister which can be bent (3rd Design)
12. Dagger (4th Design) 13. Dagger Hole (4th Design)
14. Connection Section of a Canister (4th and 5th Design)
15. Ring (5th Design) ■
16. Notches on the Rings (5th Design)
17. Notches on Adapter Plate (5th Design) 18. Key Hole (5th Design)
19. Pin Hole (5th Design)
20. Connection Section of Adapter Plate (6th Design) 21. Curvable Part of the Canister (6th Design)
22. Fixing Bolt (6th Design)
23. Air Intakes (6th Design )
BRIEF DESCRIPTION OF THE INVENTION
This invention is a safer design logic provided for present connection types between adapter plate and canister.
In current designs, realizing these connections through bolts enables the connection between adapter plate and canister to be demountable. Therefore, emergency spring may pose danger for dismantling operations which are not fulfilled by authorized staff.
Canister connections that are tamper resistant on diaphragm piston brake actuators, which have been developed with this invention, are realized through shape connection by means of design modifications on the adapter plate and canister. There are designs in which bolts are used to fix the connection; however, it is not possible to dismantle the connection even if these bolts are unscrewed. Therefore, tamper resistant connections are ensured with this design, and full safety is provided for the users.
DETAILED DESCRIPTION OF THE INVENTION In Figure 3, a present spring brake actuator (brake actuator) design which is implemented in the known technique in Diaphragm-Piston type is displayed. The connection of adapter plate (1) and canister (3) is established through peripheral bolts (5). Emergency spring (2) is compressed by means of the air transmitted to park chamber (6) between piston (4) and canister (3). This spring (2) provides the force necessary for braking when the air in the park chamber (6) is released. Since braking force is provided by the spring (2), it has a strong force value.
Although in some of the designs of diaphragm piston brake actuators with tamper resistant canister connections, which has been developed with this invention generally the connection element such as bolts (5) which are possible to be unscrewed are not used, a connection element named fixing bolt (22) was used in some of the designs (6th Design). However, this bolt only has the characteristics of fixing and it is not possible to unscrew the connection even if this bolt is dismantled. Six different design and implementation has been developed with this invention. These are described below separately. Design 1
As it is seen in the Figure 4, there are square or rectangular sections (7) in the connection point of canister (2) with adapter plate (1) and on the canister (3), which are formed at certain intervals around its peripheral and are similar to the rampart of a castle. After the adapter plate (1) is mounted on the canister (3) the sections are bent on the adapter plate (1) by means of F Force which is applied to square or rectangular sections (7) and seen in Figure 5. The situation which occurs after F Force is applied is seen in Figure 6. This process is applied to all rectangular sections (7) on canister (3). The sections (7) buckled along the peripherals have the capacity to correspond the force of emergency spring (2).
Diaphragm piston brake actuators with tamper resistant canister connections developed in Design 1 is characterized with square or rectangular sections (7) which have been formed at certain intervals along its peripheral in the connection point of canister (2) with adapter plate
(1) and on the canister (3) and by laying the sections on the adapter plate by pressing it inwards after mounting the adapter plate (1) on the canister (3). The sections which are similar to rampart of a castle might be square or rectangular in shape, or have other geometric forms such as elliptic, circular or polygon.
Design 2
In this design, there are square or rectangular sections (7) on the canister (3) similar to the rampart of a castle as in Figure 4. On the other hand, there are empty sections (8) (clefts) on the adapter plate (1) through which these sections (7) can pass and which are the same in number with the sections. As it is displayed in Figure 7, square or rectangular sections (7) on the canister (3) are placed in a manner that they pass through the holes (8) on the adapter plate (1). After the connection is established, an F force such as in Figure 7 is applied to the square or rectangular sections (7). By means of this F force, the square or rectangular sections (7) are bent on adapter plate (8). After the bending process is applied to all sections (7) the connection between canister (3) and the adapter plate (1) is established. The present situation of the connection is displayed in Figure 8 and 9. Diaphragm piston brake actuator tamper resistant canister connection developed in Design 2 is characterized with square or rectangular sections (7) which have been formed at certain intervals along its peripheral in the connection point of canister (2) with adapter plate (1) and on the canister (3) and by laying the sections on the adapter plate by pressing it inwards after mounting the adapter plate (1) on the canister (3), and in return for that, making available empty sections (8) (clefts) through which these sections (7) can pass and which are the same in number with the sections, and placing the square or rectangular sections (7) which are present on the canister (3) to the adapter plate (1) by pressing them inward after they are inserted in a manner that they can be passed through the holes (8) on the adapter plate. The sections which are similar to rampart of a castle might be square or rectangular in shape, or have other geometric forms such as elliptic, circular or polygon.
Design 3
In Figures 10, 11 and 12, another design of tamper resistant connection is displayed. The process is, in general terms, the work of bending the certain sections of the canister (1) on the adapter plate (1). In order to make the bending process easier, clefts (9) have been opened above and below at certain intervals along the surface where canister (3) combines with adapter plate (9). Peripheral of the adapter plate (1) has been indented (10) in order to ensure that these clefts (9) bent on the adapter plate. After the canister (3) and adapter (1) are combined, F Force displayed in Figure 10 is applied to the metal (11) between the clefts (9), and finally bending process is established. In Figure 11, section drawing of the metal component (11) which has been applied bending process is displayed. After this process is applied to all intervals (11) around the canister (3) which shall be bent, the connection is established. In Figure 12, three dimensional picture of the actuator which has been exposed to bending process is displayed. Diaphragm piston brake actuator tamper resistant canister connection developed in
Design 3 is characterized with opening clefts (9) above and below to the surface where canister (3) combines the adapter plate (1) at certain intervals around its peripherals, with opening indent (10) of adapter plate (1) in order to ensure that these clefts (9) are bent on the adapter plate (1), and with fulfilling the bending process to the indent of the adapter plate (10) by applying force (pressure) to the metal (11) between the clefts (9) after the canister (3) and adapter plate (1) are combined. The clefts below and above (9) might be square or rectangular in shape, or have other geometric forms such as elliptic, circular or polygon.
Design 4 In the designs displayed in Figures 13, 14 and 15, surrounding process is performed by adapter plate (1). What is different in this design is that there are additional components named dagger (12) as well as adapter plate (1) and canister. There are dagger holes on the adapter plate (1) at certain intervals into which dagger (12) can be inserted. In addition, a connection section (14) has been designed onto the surface where canister (3) in use bases on the adapter plate (1). For the connection, first the canister (3), then the adapter plate (1) are combined. Following to this, the daggers (12) are inserted into dagger holes (13). By means of certain F force displayed in Figure 14, the daggers (12) are nail on the canister (3) and therefore, based on the connection section (14) of the canister (3). The nailed daggers (12) apply force to the connection section (14) in this manner, and combines the adapter plate (1) with the canister (3). In Figure 15, three dimensional picture of the connection design with the dagger is displayed.
Diaphragm piston brake actuator tamper resistant canister connection developed in
Design 4 is characterized with additional components named dagger as well as adapter plate
(1) and canister (3), with dagger holes (13) at certain intervals on the adapter plate (1) where dagger (12) can be inserted, and a connection section (14) which canister (3) bases on the adapter plate (1).
Daggers (12) might be square or rectangular in shape, or have other geometric forms such as elliptic, circular or polygon.
Design 5 In the design seen in Figure 16, a component named ring is (15) is used as in the previous design; in addition, there is a connection section (14) on the canister (3). There are rectangular notches (16) on the ring (15) component. Notches (17) have been designed on the adapter plate (1) in a manner that they match with these notches (16). While the connection is established, first the ring (15) is passed around the canister (3) and based on the connection section (14) of the canister (3). Then, the notches (16) on the ring are passed through the gap between two notches (17) on the adapter plate (1), and canister (3) is based on the adapter plate (1). By means of the keys which match the key holes (18) on the ring (15), the notches (16) on the adapter plate (1) and ring are turned until they overlap. A pin is placed into the pin hole (19) on the adapter plate (1) in order to prevent turning of adapter plate (1) or the ring (15) and the connection is strengthened.
Diaphragm piston brake actuators with tamper resistant canister connections, which have been developed in Design 5 are characterized with ring (15), connection section (14) on the canister (3), preferably rectangular section notches (16) on ring part (15), notches (17) which are placed at certain intervals on adapter plate (1) in a manner that matches these notches (16), key holes (18), pin holes (19) and pin.
The notches (16) on ring component and notches (17) on adapter plate (1) might preferably be square or rectangular in shape, or have other geometric forms such as elliptic, circular or polygon.
Design 6
The drawings of this design are displayed in figure 17, 18, 19, 20 and 21. In this design, it is seen that upper section (21) of the canister (3) displayed in Figure 18 is longer that the level of connection section of adapter plate (20) after adapter plate (1) is placed on the canister (3).
This long section (21) of the canister (3) completely surrounds the adapter plate (1) except the air intakes (23). This section (21) which surrounds the adapter plate (1) is bent onto the adapter plate (1) by means of a pulley which applies F Force determined before. In other words, this long section (21) is roll formed onto the adapter plate (1). The roll forming process is applied to whole section except for the part between air intakes (23). Anyway, the part between the air intakes (23) does not have the long section (21) which shall be bent onto the adapter plate (1). It is possible that at this form of the design, the canister (3) may turn around the adapter plate (1). In order to eliminate the possibility of turning around and to increase resistance of connection between air intakes (23) and canister (3), a bolt (22) is mounted between the air intakes (23) so that this possibility is eliminated and the connection between adapter plate (1) and canister (3) is established safely.

Claims

1- Diaphragm piston brake actuator tamper resistant canister connection characterized in that square or rectangular sections (7) as the main members which are similar to the rampart of a castle and have been formed at certain intervals along its peripheral in the connection point of canister (2) with adapter plate (1) and on the canister (3) and by laying the sections on the adapter plate by pressing it inwards after mounting the adapter plate (1) on the canister (3).
2- Diaphragm piston brake actuator tamper resistant canister connection according to Claim 1 characterized in that the sections which are similar to rampart of a castle (7) might be square or rectangular in shape, or have other geometric forms such as elliptic, circular or polygon.
3- Diaphragm piston brake actuator tamper resistant canister connection characterized in that square or rectangular sections (7) which have been formed at certain intervals along its peripheral in the connection point of canister (2) with adapter plate (1) and on the canister (3) and by laying the sections on the adapter plate by pressing it inwards after mounting the adapter plate (1) on the canister (3), and in return for that, making available empty sections (8) (clefts) through which these sections (7) can pass and which are the same in number with the sections, and placing the square or rectangular sections (7) which are present on the canister (3) to the adapter plate (1) by pressing them inward after they are inserted in a manner that they can be passed through the holes (8) on the adapter plate.
4- Diaphragm piston brake actuator tamper resistant canister connection according to Claim 3 characterized in that the sections which are similar to rampart of a castle (7) might be square or rectangular in shape, or have other geometric forms such as elliptic, circular or polygon. 5- Diaphragm piston brake actuator tamper resistant canister connection characterized in that opening clefts (9) above and below to the surface where canister (3) combines the adapter plate (1) at certain intervals around its peripherals, with opening indent (10) of adapter plate (1) in order to ensure that these clefts (9) are bent onto the adapter plate (1), and with fulfilling the bending process to the indent of the adapter plate (10) by applying force (pressure) to the metal (11) between the clefts (9) after the canister (3) and adapter plate
(1) are combined. 6- Diaphragm piston brake actuator tamper resistant canister connection according to Claim 5 characterized in that the clefts below and above (9) might be square or rectangular in shape, or have other geometric forms such as elliptic, circular or polygon.
7- Diaphragm piston brake actuator tamper resistant canister connection characterized with additional components named dagger as well as adapter plate (1) and canister (3), with dagger holes (13) at certain intervals on the adapter plate (1) where dagger (12) can be inserted, and a connection section (14) where the canister (3) is based on the adapter plate (1)
8- Diaphragm piston brake actuator tamper resistant canister connection according to Claim 7 characterized in that the canister (3) and the adapter plate (1) is connected; the daggers
(12) are placed in the dagger holes (13); the daggers (12) are nailed on the canister through applied force thereby leaning the canister on the connection section; and connection of the canister (3) and the adapter plate (1) upon the pressure force applied by the nailed daggers (12) on the connection section (14). 9- Diaphragm piston brake actuator tamper resistant canister connection according to Claim 7 or Claim 8 characterized in that the daggers (12) might be rectangular in shape, or have other geometric forms such as square, elliptic, circular or polygon.
10- Diaphragm piston brake actuator tamper resistant canister connection characterized with ring (15), connection section (14) on the canister (3), preferably rectangular section notches (16) on ring part (15), notches (17) which are placed at certain intervals on adapter plate (1) in a manner that matches these notches (16), key holes (18), pin holes (19) and pin.
11- Diaphragm piston brake actuator tamper resistant canister connection according to Claim 7 characterized in that the notches (16) on ring component and notches (17) on adapter plate (1) might preferably be square or rectangular in shape, or have other geometric forms such as elliptic, circular or polygon.
12- Diaphragm piston brake actuator tamper resistant canister connection according to Claim 10 or Claim 11 characterized in that while the connection is established, first the ring (15) is passed around the canister (3) and based on the connection section (14) of the canister (3), then the notches (16) on the ring are passed through the gap between two notches (17) on the adapter plate (1), and canister (3) is based on the adapter plate (1) and by means of the keys which match the key holes (18) on the ring (15), the notches (16) on the adapter plate (1) and ring are turned until they overlap; and a pin is placed into the pin hole (19) on the adapter plate (1) in order to prevent turning of adapter plate (1) or the ring (15). - Diaphragm piston brake actuator tamper resistant canister connection characterized in that the section of the upper section (21) of the canister (3) except for the part between the air intakes (23) is longer than the level of connection section of adapter plate (20); after adapter plate (1) is placed on the canister (3) this long section (21) of the canister (3) is roll formed onto the adapter plate (1) by means of a pulley and this roll forming process is applied to whole section except for the part between air intakes (23); and a bolt (22) is mounted between the air intakes (23).
PCT/TR2006/000074 2006-08-29 2006-12-26 Diaphragm piston brake actuators with tamper resistant canister connections WO2008027018A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
TR2006/04675A TR200604675A2 (en) 2006-08-29 2006-08-29 Lower body connections in diaphragm piston brake bellows which cannot be removed.
TR2006/4675 2006-08-29
TR2006/07188A TR200607188A2 (en) 2006-12-18 2006-12-18 Lower body connection in diaphragm piston brake bellows.
TR2006/07188 2006-12-18

Publications (1)

Publication Number Publication Date
WO2008027018A1 true WO2008027018A1 (en) 2008-03-06

Family

ID=38134287

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2006/000074 WO2008027018A1 (en) 2006-08-29 2006-12-26 Diaphragm piston brake actuators with tamper resistant canister connections

Country Status (1)

Country Link
WO (1) WO2008027018A1 (en)

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WO2009155900A1 (en) * 2008-06-28 2009-12-30 Conti Temic Microelectonic Gmbh Method for producing a tight, form-fitting connection
WO2013169219A1 (en) 2012-05-11 2013-11-14 Arfesan Arkan Fren Elemanlari Sanayi Ve Ticaret A.S. Non detachable body connection system with connection ring for emergency brake cylinders
WO2015052308A1 (en) * 2013-10-11 2015-04-16 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Brake cylinder
US10843355B2 (en) 2011-10-06 2020-11-24 Bic-Violex Sa Razor blade, razor head, and method of manufacture
EP3753795A1 (en) * 2019-06-20 2020-12-23 WABCO Europe BVBA Locking element of a brake actuator housing
CN115306844A (en) * 2021-05-06 2022-11-08 采埃孚商用车系统欧洲有限公司 Spring brake actuator

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009155900A1 (en) * 2008-06-28 2009-12-30 Conti Temic Microelectonic Gmbh Method for producing a tight, form-fitting connection
US8584340B2 (en) 2008-06-28 2013-11-19 Conti Temic Microelectronic Gmbh Method for producing a tight, form-fitting connection
US10843355B2 (en) 2011-10-06 2020-11-24 Bic-Violex Sa Razor blade, razor head, and method of manufacture
WO2013169219A1 (en) 2012-05-11 2013-11-14 Arfesan Arkan Fren Elemanlari Sanayi Ve Ticaret A.S. Non detachable body connection system with connection ring for emergency brake cylinders
WO2015052308A1 (en) * 2013-10-11 2015-04-16 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Brake cylinder
EP3753795A1 (en) * 2019-06-20 2020-12-23 WABCO Europe BVBA Locking element of a brake actuator housing
CN115306844A (en) * 2021-05-06 2022-11-08 采埃孚商用车系统欧洲有限公司 Spring brake actuator
EP4086127A1 (en) * 2021-05-06 2022-11-09 ZF CV Systems Europe BV Spring brake actuator

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