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Unit brake

A technology of brakes and brake levers, which is applied in the direction of brakes, brake actuators, transmission devices, etc., and can solve problems such as complicated operations and increased driving resistance of the piston rod 106

Active Publication Date: 2013-05-22
NABLESCO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the piston rod 106 advances or retreats, the piston rod 106 receives a swinging force, thereby causing a problem of increasing the driving resistance of the piston rod 106.
In addition, since the pin connection between the tip of the piston rod 106 and the tip of the brake lever 101 must be carried out in the housing, the pin connection is performed through the opening formed in the housing, so there is a very complicated operation. question

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0015] Hereinafter, preferred embodiments for carrying out the present invention will be described in detail with reference to the drawings.

[0016] figure 1 An embodiment of the unit brake according to the present invention is shown. The unit brake 10 according to the present embodiment is configured as a braking device for a railway vehicle. The unit brake 10 includes a hollow cast iron housing 12 . Fixing holes 14 are formed in the housing 12 , and the housing 12 can be fixed to a vehicle such as a dolly by inserting bolts (not shown) in the fixing holes 14 .

[0017] A brake lever 18 is accommodated in the housing 12 . The brake lever 18 is made of cast iron and is rotatably supported on a support shaft 20 mounted in the casing 12 . Also, the brake lever 18 is provided in a posture extending in the vertical direction.

[0018] The fulcrum 20 is provided at the middle portion of the brake lever 18 . The brake lever 18 is formed as an arm portion 22 at its upper side...

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PUM

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Abstract

[PROBLEMS] A unit brake in which rocking of a piston rod is suppressed and which can be assembled with reduced labor. [MEANS FOR SOLVING PROBLEMS] The unit brake has a pair of wall sections (61, 62) arranged on the piston rod (43) so as to be spaced from each other in the direction of the axis of the piston rod (43), and also has a power point section (65) provided on a brake lever (18), between the pair of wall sections (61, 62). With either one of the wall sections (61, 62) and the power point section (65) engaged with each other by axial movement of the piston rod (43), relative movement that occurs between the wall section (61, 62) and the power point section (65) in the direction perpendicular to the axial direction and is caused by rocking of the brake lever (18) is permitted.

Description

technical field [0001] The invention relates to unit brakes. Background technique [0002] Conventionally, as shown in the following Patent Document 1, there is known a unit brake that drives a brake shoe by swinging a brake lever by driving a piston rod of an air cylinder device. Among the unit brakes disclosed in this document, such as Figure 8 As shown, a brake lever 101 is accommodated in the housing. The brake lever 101 is rotatably supported on a support shaft 102 at its middle portion, and is pin-connected at its tip end to a tip end portion of a piston rod 106 of a cylinder device 105 . The cylinder device 105 is provided with a spring brake unit and an air brake unit, and the cylinder device 105 moves the piston rod 106 forward or backward in the axial direction through the action of elastic force or air pressure. That is, the air cylinder device 105 has a first air cylinder 107 that drives the piston rod 106 with air pressure, and a second air cylinder 108 that ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D65/14F16D121/04F16D125/68F16D65/18
CPCF16D2125/64F16D65/14F16D2121/02F16D2127/008F16D2121/12B60T13/38F16D65/18F16H21/44
Inventor 麻野吉雄
Owner NABLESCO CORP