WO2009075659A2

WO2009075659A2 - Emergency chamber locking mechanism in the bellows with diaphragm and piston

Info

Publication number: WO2009075659A2
Application number: PCT/TR2008/000142
Authority: WO
Inventors: Mehmet Hayti; Erhan Kaya
Original assignee: Orsan Ticari Arac Sistemleri Ltd. Sti.
Priority date: 2007-12-11
Filing date: 2008-12-05
Publication date: 2009-06-18
Also published as: WO2009075659A3; WO2009075659A8

Abstract

The invention is specifically related to the emergency brake bellows used in brake controlling systems in the automotive sector; wherein it is related to comprising locking clamp (7) having locking clamp tabs (8) and locking clamp spaces (9) providing locking, top cover tab space (2) bedding the said locking clamp tabs (8) and providing the connection of the said locking clamp tabs (8) with the top cover (1), and top cover tab (3) providing locking by means of entering into the said locking clamp tab space (9).

Description

EMERGENCY CHAMBER LOCKING MECHANISM IN THE BELLOWS WITH

DIAPHRAGM AND PISTON

Technical Field

The invention is related to brake bellows with emergency providing the braking force in the air brake systems used in the trade vehicles such as truck, bus and etc.

The invention is particularly related to the emergency chamber locking mechanism providing the brake bellow production in the air brake systems of trade vehicle sector to be practical, where the montage is made without forcing the impermeability member to be rolled during the bellow montage; and which has deep body tab, locking clamp, locking clamp tabs, aluminium top cover tab space, aluminium top cover tab, detection pin and detection pin port.

Background Art

Highway vehicles such as truck, bus, tractor and etc. used in trade transportation are indispensable for human life. Therefore, constant developments are made to provide these vehicles to be more effective, practical and economic.

The vehicles used in trade transportation are the heavy weighted vehicles as they are used in load and human transportation. It is necessary to provide the usage of these vehicles produced for long way to be more comfortable and reliable; and the breakages possible to occur are needed to be minimized. The brake systems used in these vehicles are of vital importance for the vehicles. One of the most important factors in preventing the accidents possible to occur is the brake systems. One of the most important parts in the brake systems are the emergency brake bellows.

The connection mechanism in emergency brake bellows used in trade vehicles in the background art is as follows; as seen in Fig-4, the o-ring (16) is connected to the top cover (1). Then the aluminium top cover (1) is positioned on the deep body (5); and the bolt (17) connection ports are centred. Bolt (17), spring rondel (18) and the nut (19) are fixed and torched by the torch key; and the emergency chamber (20) montage process is completed. There are eight bolts (17), spring rondels (18) and nuts (19) around the aluminium top cover (1). When high pressured air is given to the front emergency side (12) from the vehicle line, the mechanism will not be resolved with force connection and it will provide the impermeability. When the air in the front emergency side (12) is discharged, the emergency spring (14) will push the piston (15) and it will be leaned to the aluminium top cover (1) where it will be stopped. By this way also the mechanism will not be resolved with the force connection and it will provide the impermeability.

The current emergency chamber locking mechanisms are not too complex systems for everyone to intervene in any case of breakage. However, in a case when the emergency chamber is opened in an uncontrolled way or not intervened by an expert witness, it is possible for the emergency spring to have life-threatening risk by protruding. So as to prevent this life-threatening risk, the locking mechanism should be mounted by a special apparatus and should be demounted by this special apparatus.

The difficult production of the deep body and more processes of production work flow in the emergency chamber locking mechanisms used in brake systems in the background art result in the time loss to be high in production.

The production montage of the brake bellow is difficult and with high costs in the background art. Also during the production montage of the brake bellow, there becomes piling up to a single side in the impermeability member as a result of the aluminium top cover or the deep body to be rolled. This results in the emergency brake bellows to be broken instantly.

The impermeability member used in the background art is not adequate.

Currently, it is known that there are several implementations related to emergency brake bellows. One of these implementations is the diaphragm-piston emergency brake bellow with inner airing in the document no 2002/00761. According to this implementation; the invention is related to decreasing the bellow breakages by means of applying inner airing system to the diaphragm piston emergency brake bellows used in the vehicles such as truck, bus and trailer. The diaphragm-piston emergency brake bellow with inner airing developed with this invention, as the main members, is characterized in that it is composed of aluminium piston, aluminium pipe, emergency chamber, service chamber, piston valve, piston valve spring, piston valve O-ring, piston valve steel ball, outlet air ports, inlet air ports, air passage aperture, bung, air inlet ports, hydraulic seal, outlet channel and pressured air O-ring.

Another implementation is related to emergency brake bellows with high impermeability feature in whose spacer cups double O-rings are used in the document no 2002/00762. According to this implementation, the invention is related to emergency brake bellows providing braking force in highway vehicles such as truck, bus and trailer used in trade transportation. In the emergency brake bellows subject of the invention, there are two chambers as the one being "Service brake chamber" acting during the movement of the vehicle and the other as being "Park brake chamber" acting the during the park state of the vehicle. The emergency brake bellow with high impermeability feature in whose spacer cups double O-rings are used developed with this invention, as main members, is characterized in that it is composed of spacer cup sliding ring, park brake chamber, service brake chamber, first O-ring channel, second O-ring channel, sliding ring channel, the area between the O-rings and the second O-ring.

In these implementations above, developments are made related to impermeability. As seen from these implementations, O-rings are used for impermeability. However, it is seen that there is no implementation related to providing the montage to be more practical and preventing the spring from protruding. As a result, developments are made in the emergency brake bellows; therefore, there is a need for new configurations to eliminate the disadvantages mentioned above and to bring up solutions to the present systems.

Object of the Invention

The present invention is related to the emergency brake bellows meeting the abovementioned requirements, eliminating all the disadvantages and bringing up some further advantages.

The object of the invention is to achieve providing higher efficiency in the production by means of increasing the production work force, making economical production, adapting to the competition environment and most importantly providing human security and comfort in the work place.

Another object of the invention is to provide the practical production of the deep body. Another object of the invention is to provide practical montage of the bellow.

Another object of the invention is to provide making the montage without forcing the impermeability member to be rolled, in other words, without piling up during the bellow montage. Another object of the invention is to provide easiness in the montage of the bellow to the vehicle by means of decreasing the scavenging diameter of the part where the emergency chamber is present, thus decreasing the bellow sizes.

Another object of the invention is to provide complete impermeability between the front emergency side and the outer ambient. Another object of the invention is to minimize the accident risks possible to occur and to provide the security of users' and workers' health.

So as to achieve all the above mentioned advantages to be understood from the detailed description below, the present invention composes emergency brake bellows having locking clamp tabs and locking clamp spaces providing the locking to be made, and detection pin having detection pin port providing the locking clamp to be fixed after the bellow montage is completed; it provides the montage to be practical, minimizes the life-threatening risk by means of providing everyone to intervened in a case of breakage and thus provides higher efficiency in the production by means of increasing the production work flow, making economical production, adapting to competition environment and most importantly provides security and comfort to be achieved in the work place of the people.

The structural and characteristic features and all the advantages of the invention will be more clearly understood from the figures given below and the detailed description written with reference to these figures; therefore, the evaluation should be made regarding those figures and the detailed description.

Brief Description of the Figures

The evaluation should be made together with the figures described below for the configuration and advantages with the additional members of the present invention to be understood at most. Fig-1 : Disassembled figurative perspective view of the invention. Fig-2: Sectional figurative perspective view of the invention. Fig-3: Sectional figurative view of the mounted bellow where the locking mechanism of the invention.

Fig-4: Sectional view of the mounted bellow belonging to the background art and where the connection mechanism is present. Reference Numbers

1. Top cover

2. Top cover tab space

3. Top cover tab

4. Double effective impermeability member 5. Deep body

6. Deep body tab

7. Locking clamp

8. Locking clamp tab

9. Locking clamp tab space 10. Detection pin port

11. Detection pin

12. Front emergency chamber

13. Back emergency chamber

14. Emergency spring 15. Piston

16.0-ring 17.BoIt

18. Spring rondel 19. Nut 20. Emergency chamber

21. Emergency brake bellow Detailed Description of the Invention

In this detailed description, the preferred configurations of the emergency brake bellows (21) subject of invention are described only towards the better understanding of the subject and in a way that it will not have any limiting effect. In Fig-1 the disassembled figurative perspective view of the invention, in Fig-2 the sectional figurative perspective view of the invention and in Fig-3 sectional figurative view of the mounted bellow (21) where the locking mechanism of the invention is present.

Top cover (1) is present on the said bellow (21). It is the top cover (1) having the top cover tab (3) providing locking. Also, it makes bedding to the double effective impermeability member (4) used as the impermeability member. The double effective impermeability member (4) is placed on the said top cover (1) manually. Locking clamp (7) having tabs providing locking is used. Locking clamp tab space (2) providing the said top cover tabs (3) to pass through is formed. The said top cover (1) is preferably produced from aluminium. Detection pin (11) is connected to only one out of two detection pin ports (10) on the top cover (1). In the present invention, the top cover is connected on the bellow. The said locking clamp (7) and outer diameter of the deep body (5) are centred. The inner diameter of the deep body (5) is connected to the double effective impermeability member (4) mounted on the aluminium top cover (1). The aluminium top cover (1) is at the bottom and the deep body (5) is at the top. The double effective impermeability member (4) is constrained at the pre-defined amount by means of applying force to the deep body (5) that is on the top by the top cover. The required space is formed for the locking clamp (7) to be rolled by this constraining. The locking clamp (7) centred on the deep body (5) is superposed to the locking clamp tab (8) by the aluminium top cover tab space (2). As seen from Fig-2, the locking clamp (7) is connected to the top cover tab space (2). The locking clamp tab (8) is leaned to the detection pin (11) previously mounted to the top cover (1) by the connection members. Detection pin (11) is used for fixing the locking clamp (7) after the mounting of the said bellow (21) is completed. Detection pin port (10) is formed for positioning the detection pins (11). The other detection pin (11) is connected to the detection pin port (10) at the top cover (1) and the emergency chamber (20) montage is completed. When high pressured air is given to the front emergency chamber (12) from the vehicle line, pressure occurs at the inner walls of the top cover (1) and the deep body (5). This pressure is met by the locking clamp (7) positioned between the deep body tab (6) and the top cover tab (3); the emergency brake bellow (21) is provided to be not resolved and thus the impermeability is provided. When the air in the front emergency chamber (12) is discharged, the emergency spring (14) will push the piston (15) and it will be leaned to the aluminium top cover (1) where it will be stopped. The bellow (21) is provided to be not resolved by means of the force that the emergency spring (14) makes, deep body tab (6) and the locking clamp (7) positioned between the aluminium top cover tabs (3).

The invention is specifically related to emergency brake bellows used in brake control systems in the automotive sector, comprising top cover (1), front emergency chamber (12) and back emergency chamber (13) providing the pressured air coming from the vehicle line to move, emergency chamber (20) that is formed by the said front emergency chamber (12) and the back emergency chamber (13), emergency spring (14) pushing the piston (15) when air in the said front emergency chamber (12) is discharged, and O-ring (16) providing the impermeability; wherein it is related to having locking clamp (7) including locking clamp tabs (8) and locking clamp spaces (9) providing locking, top cover tab space (2) bedding the said locking clamp tabs (8) and providing the connection of the said locking clamp tabs (8) with the top cover (1), top cover tab (3) providing locking by means of entering into the said locking clamp tab space (9), detection pin (11) having detection pin port (10) providing the locking clamp (7) to be fixed after the montage of the said brake bellow (21) is completed, double effective impermeability member (4) providing impermeability, and top cover (1) preferably produced from aluminium.

The protection coverage of this application is defined in the claims section and certainly it cannot be limited to what has been described above by the object of exemplifying. It is clear that an innovation of a technical expert may be used in changing sections in form; and similar configurations may be used in different areas in the similar object. Therefore, it is obvious that such configurations will lack of the criteria of innovation.

Claims

1. The invention is specifically related to emergency brake bellows used in brake control systems in the automotive sector, comprising top cover (1), front emergency chamber (12) and back emergency chamber (13) providing the pressured air coming from the vehicle line to move, emergency chamber (20) that is formed by the said front emergency chamber (12) and the back emergency chamber (13), emergency spring (14) pushing the piston (15) when air in the said front emergency chamber (12) is discharged, and O-ring (16) providing the impermeability; it comprise; - Locking clamp (7) having locking clamp tabs (8) and locking clamp spaces (9) providing locking,

Top cover tab space (2) bedding the said locking clamp tabs (8) and providing the connection of the said locking clamp tabs (8) with the top cover (1),

- Top cover tab (3) providing locking by means of entering into the sad locking clamp tab space (9).

2. An emergency brake bellow according to Claim 1 ; comprising detection pin (11) having detection pin port (10) providing the locking clamp (7) to be fixed after the montage of the said emergency brake bellow (21) is completed.

3. An emergency brake bellow according to any one of the claims above; comprising double effective impermeability member (4) providing impermeability.

4. An emergency brake bellow according to any one of the claims above; the said top cover (1) is preferably produced from aluminium.