GB2504007A - Brake cylinder adjustment assembly - Google Patents

Brake cylinder adjustment assembly Download PDF

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Publication number
GB2504007A
GB2504007A GB201313753A GB201313753A GB2504007A GB 2504007 A GB2504007 A GB 2504007A GB 201313753 A GB201313753 A GB 201313753A GB 201313753 A GB201313753 A GB 201313753A GB 2504007 A GB2504007 A GB 2504007A
Authority
GB
United Kingdom
Prior art keywords
positioning
socket
engaged
operation rod
disk
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
GB201313753A
Other versions
GB2504007B (en
GB201313753D0 (en
Inventor
Shu-Hui Chen
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.)
JOINWIN CO Ltd
Original Assignee
JOINWIN CO Ltd
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
Application filed by JOINWIN CO Ltd filed Critical JOINWIN CO Ltd
Priority to GB201313753A priority Critical patent/GB2504007B/en
Publication of GB201313753D0 publication Critical patent/GB201313753D0/en
Publication of GB2504007A publication Critical patent/GB2504007A/en
Application granted granted Critical
Publication of GB2504007B publication Critical patent/GB2504007B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0035—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for motor-vehicles
    • 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
    • F16D65/0043—Brake maintenance and assembly, tools therefor
    • 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
    • F16D65/38—Slack adjusters
    • 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
    • F16D2125/00—Components of actuators
    • F16D2125/02—Fluid-pressure mechanisms
    • F16D2125/06—Pistons

Landscapes

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

Abstract

The brake cylinder adjustment assembly is for adjusting brake cylinders of different sizes and includes a rotation unit 2 connected with a driving unit 3. The rotation unit includes a rotatable disk 20, a fixed disk 21, at least two positioning rods 22 and a clip 23. The rotatable disk has at least two curved slots 201 and the fixed disk has at least two slide slots 211. The at least two positioning rods are engaged with the at least two slide slots and the at least two curved slots. The driving unit includes an operation rod 30, left and right positioning sockets 32, 33, a board 34 and a driving rod 35. The brake cylinder adjustment assembly uses a single driving unit and single rotation unit to adjust the left and right brake cylinders (4, Figure 8) of different sizes.

Description

BRAKE CYLINDER ADJUSTMENT ASSEMBLY
FIELD OF THE INVENTION
The present invention relates to a brake cylinder adjustment assembly, and more particularly, to a brake cylinder adjustment assembly using single driving unit and single rotation unit to adjust the left and right brake cylinders of different sizes.
BACKGROUND OF THE INVENTION
The conventional brake adjustment assembly is disclosed in Taiwan Publication No. 392552, and generally comprises a disk which is axially connected with the brake cylinder, and a wrench which is connected to the shafl of the rotation disk. The rotation disk has a hollow and cylindrical positioning shaft extending from the center thereof and the outer diameter of the positioning shaft is sized to be fit the inner diameter of the valve open end of the brake cylindet Two pivotal holes are defined diametrically in the rotation disk. A positioning hole is defined in an outside of the rotation disk so that a positioning rod is positioned at the positioning hole. The wrench has a driving disk at the distal end of the wrench and a recess is defined in the center of the driving disk. A magnet is accommodated in the recess. Two rods extend from outside of the recess and located conesponding to the pivotal holes of the rotation disk so that the driving disk can be easily connected with the rotation disk. By this way, the positioning shaft of the rotation disk is inserted into the valve open end of the brake cylinder, and the positioning rod contacts the notch iii one side of the brake cylindet Therefore, the brake cylinder can be quickly installed and removed. The brake cylinder adjustment assembly is received in a tool box 1 as shown in Fig. 1, and there are two wrenches 10, II and multiple rotation disk 12 are prepared in the tool box I. The wrench 10 has right threads defined in its threaded rod 100, and the other wrench 11 has left threads defined in its threaded rod 110, so as to respectively adjust the right and left brake cylinders. It is noted that the wrenches are expensive, and the two wrenches 10, 11 and the multiple rotation disk 12 the tool box I make the tool box 1 heavy and bulky.
The present invention intends to provide a brake cylinder adjustment assembly which improves the shortcomings of the conventional ones.
SUMMARY OF THE INVENTION
The present invention relates to a brake cylinder adjustment assembly and comprises a rotation unit for being connected with the brake cylinders of different sizes, and a driving unit for being cooperated with the rotation unit.
The rotation unit comprises a rotatable disk, a fixed disk, two positioning rods and a clip. The rotatable disk has two curved slots defined in one side thereof and a through hole is defined centrally through the rotatable disk. The fixed disk has two slide slots in the first side thereof and two positioning slots are defined in the second side of the fixed disk and located corresponding to the slide slots. A protrusion extends from tile second side of the fixed disk and extends through the through hole of the rotatable disk. The protrusion has a polygonal hole defined therein and a groove is defined in the outside of the protrusion. The clip is engaged with the groove. The two positioning rods are engaged with the two slide slots of the fixed disk. Each of the positioning rods has a positioning flange at one end thereof and the two respective positioning flanges are engaged with the positioning slots of the fixed disk. Each of the positioning flanges has a guide extending therefrom which is engaged with the curved slot corresponding thereto.
The driving unit comprises an operation rod, a left positioning socket, a right positioning socket, a board and a driving rod. The operation rod has a left threaded section and a right threaded section defined in left and right sections thereof. A left hole is defined through the operation rod and located close to one end of the left threaded section. A right hole is defined though the operation rod and located close to one end of the right threaded section. A polygonal left end part and a polygonal right end part respective extend from two ends of the operation rod. The left end part has a left positioning bead retractably engaged with one side thereof, and the polygonal right end part has a right positioning bead retractably engaged with one side thereof The left positioning socket has inner threads defined therein and the right positioning socket has iirner threads defined therein. The left positioning socket and the right positioning socket are respectively and threadedly connected to the left threaded section and the right threaded section. The left positioning socket has a first flange and the right positioning socket has a second flange. The board has a notch. The left positioning socket or the right positioning socket is engaged with the notch of the board. The driving rod extends through the left hole or the right hole of the operation rod.
Preferably, the operation rod has a tubular portion extending from the mediate portion thereof and an annular groove is defined in outside of the tubular portion. A fixed socket is mounted to the mediate portion of the operation rod. The fixed socket has a polygonal outer body and a passage is defined axially through the fixed socket. A lip extends from an inside of the passage and is engaged with the annular groove of the tubular portion.
Preferably, the rotatable disk has a anti-slip surface defined in outside thereof The present invention uses only one driving unit and one rotation tmit to adjust the brake cylinders of different sizes. The present invention is able to adjust the lefi and right brake cylinders to reduce users' economical burden and the brake cylinder adjustment assembly of the present invention is compact and light so as to be carried conveniently.
The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration oniy, a preferred embodiment iii accordance with the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. I is a perspective view to show the tool box for receiving the conventional brake cylinder adjustment assembly; Fig. 2 is an exploded view to show the rotation unit of the brake cylinder adjustment assembly of the present invention; Fig. 3 is an exploded view to show the rotation unit and the driving unit of the brake cylinder adjustment assembly oftlie present invention; Fig. 4 is a perspective view to show the brake cylinder adjustment assembly of the present invention; Fig. 5 shows that the two positioning rods of the rotation unit move inward to reduce the distance therebetween; Fig. 6 shows that the two positioning rods of the rotation unit move outward to increase the distance therebetween; Fig. 7 is a cross sectional view to show the brake cylinder adjustment assembly of the present invention cooperated with the lefi brake cylinder; Fig. 8 is a perspective view to show the brake cylinder adjustment assembly of the present invention cooperated with the left brake cylinder; Fig. 9 is a cross sectional view to show the brake cylinder adjustment assembly of the present invention cooperated with the right brake cylinder, and Fig. 10 is a perspective view to show the brake cylinder ad] ustinent assembly of the present invention cooperated with tile right brake cylinder.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to Figs. 2 and 3, the brake cylinder adjustment assembly of the present invention comprises a rotation unit 2 for being connected with the brake cylinders of different sizes, and a driving unit 3 for being cooperated with the rotation unit 2. The rotation unit 2 comprises a rotatable disk 20, a fixed dislc 2!, two positioning rods 22 and a clip 23. The rotatable dislc 20 has an anti-slip surface defined in outside thereof The rotatable disk 20 has two curved slots 201 defined in one side thereof and a through hole 202 is defined centrally through the rotatable disk 20. The fixed disk 21 has two slide slots 211 in the first side thereof and two positioning slots 211 are defined in the second side of the fixed disk 21 and located corresponding to the s!ide s!ots 211. A protrusion 212 extends from the second side of the fixed disk 21 and extends through the though hole 202 of the rotatable disk 20. The protrusion 212 has a polygonal hole 213 defined therein and a groove 214 is defined in the outside of the protrusion 2 12. The clip 23 is engaged with the groove 2 14.
The two positioning rods 22 are engaged with the two slide slots 210 of the fixed disk 2!. Each of the positioning rods 22 has a positioning flange 220 at one end thereof and the two respective positioning flanges 220 are engaged with the positioning slots 211 of the fixed disk 21. Each of the positioning flanges 220 has a guide 221 extending therefrom winch is engaged with the curved slot 20! corresponding thereto.
The driving unit 3 comprises an operation rod 30, a fixed socket 31, a !eft positioning socket 32, a right positioning socket 33, a board 34 and a driving rod 35. The operation rod 30 has a tubular portion 300 extending from the mediate portion thereof and an annular groove 301 is defined in outside of the tubular portion 300. The operation rod 30 has a left threaded section 302 and a right threaded section 303 defined in left and right sections thereof A left hole 304 is defined through the operation rod 30 and located close to one end of the left threaded section 302. A right hole 305 is defined through the operation rod 30 and located close to one end of the right threaded section 303.
A polygonal left end part 306 and a polygonal right end part 307 respectively extend from two ends of the operation rod 30. The polygonal left end part 306 and the polygona! right end part 307 can be optionally and respectively engaged with the polygonal hole 213 of the fixed disk 21. The left end part 306 has a left positioning bead 308 retractably engaged with one side thereof, and the polygonal right end part 307 has a right positioning bead 309 retractably engaged with one side thereof: The fixed socket 3 I is mounted to the mediate portion of the operation rod 30 and has a po!ygonal outer body. A passage 310 is defined axially through the fixed socket 3!. A lip 3 Ii extends from an inside of the passage 310 and is engaged with the annular groove 301 of the tubular portion 300. The left positioning socket 32 has inner threads 320 defined therein and the right positioning socket 33 has inner threads 330 defined therein. The left positioning socket 32 and the right positioning socket 33 are respectively and threadedly connected to the left threaded section 302 and the right threaded section 303. The left positioning socket 32 has a first flange 321 and the right positioning socket 33 has a second flange 33 I. The second flange 33 I is engaged with the annular groove 301 of the tubular potion 300. The board 34 has a notch 340. The left positioning socket 32 or the right positioning socket 33 is engaged with the notch 340 of the board 34. The driving rod 35 extends through the left hole 304 or the right hole 305 of the operation rod 30.
When assembling, as shown in Figs. 2 to 4, the two positioning rods 22 are engaged with the two slide slots 210 of the fixed disk 21 and the positioning flanges 220 are engaged with the positioning slots 2 Ii. The rotatable disk 20 is matched to the fixed disk 21 so that the protrusion 212 of the fixed disk 21 extends through the through hole 202 of the rotatable disk 20.
The guides 221 of the two positioning rods 22 are engaged with the curved slots 201 of the rotatable disk 20. The clip 23 is engaged with the groove 214 of the protrusion 212 of the fixed disk 21 to complete the assembly. The fixed socket 31 is mounted to the mediate portion of the operation rod 30 to engage the lip 311 of the fixed socket 31 with the annular groove 301 of the tubular portion 300 to position the fixed socket 31 to the operation rod 30. The left positioning socket 32 is threadedly connected to the left threaded section 302 of the operation rod 30, and the right positioning socket 33 is threadedly connected to the right threaded section 303 of the operation rod 30. The board 34 is position beneath the left positioning socket 32 or the right positioning socket 33. The driving rod 35 extends through the left hole 304 or the right hole 305 of the operation rod 30 to complete the assembly of tl1e driving unit 3.
The left end part 306 of the operation rod 30 or the right end part 307 of the operation rod 30 oftlie driving unit 3 is inserted into the polygonal hole 213 of the fixed disk 21. By the contact between the left or right positioning bead 308 or 309 and the inside of the polygonal hole 213 of the fixed disk 21, the driving unit 3 is easily connected to the rotation unit 2.
When tile left brake cylinder 4 is to be adjusted as shown in Figs. 4 to 8, the rotatable disk 20 of the rotation unit 2 is rotated and the guides 221 of the two positioning rods 22 are moved with the curved slots 201 of the rotatable disk 20. The two positioning rods 22 can only move linearly due to the straight slide slots 210 as shown in Figs. 5 and 6, so that the distance between the two positioning rods 22 can be adjusted according to the size of the valve 41 in the valve open end 40 of the left brake cylinder 4. After the distance between the two positioning rods 22 is set, the rotation unit 2 is then connected to the left end part 306 of the operation rod 30 of the driving unit 3.
The left positioning bead 308 of the left end part 306 is pushed inward by the inside of the polygonal hole 213, so that the left positioning bead 308 of the lefi end part 306 contacts the inside of the polygonal hole 213, and the rotation unit 2 is firmly connected to the left end part 36 of the driving unit 3. The board 34 is then connected to the base 43 of the left brake cylinder 4 to connect the driving unit 3 and the left positioning socket 32 to the left brake cylinder 4.
The left positioning socket 32 is engaged with the notch 340 of the board 34 and the base 43 of the left brake cylinder 4. The positioning rod 22 of the rotation unit 2 are located corresponding to the notch 42 of the recesses 42 of the valve 41 of tile leti brake cylinder 4, and the left positioning socket 32 is rotated along the left threaded section 302 of the operation rod 30. By the rotation of the left positioning socket 32 to move the operation rod 30 back and forth to contact the rotation unit 2 on the left end of the operation rod 30 against the valve 41 in the valve open end 40 of the left brake cylinder 4.
Besides, the driving rod 35 extends through the right hole 305 of the operation rod 30 of the driving unit 3 so that the user holds the driving rod 35 to rotate the operation rod 30 of the driving unit 3 so that the operation rod 30 moves rotationally forward to drive the rotation unit 2 to move the valve 41 back to its initial position to complete the adjustment to the left brake cylinder 4.
When the right brake cylinder 4 is to be adjusted as shown in Figs. 9 and 10, the rotation unit 2 is removed from left end of the driving unit 3, and the rotation unit 2 is connected to the right end part 307 of the operation rod 30 of the driving unit 3. The right positioning bead 309 of the right end part 307 is pushed inward by the inside of the polygonal hole 213, so that the right positioning bead 309 of the right end part 307 contacts the inside of the polygonal hole 213, and the rotation unit 2 is firmly connected to the right end part 37 of the driving unit 3. The driving rod 35 is removed from the right hole 305 of the driving unit 3 and then extends through the left hole 304 of the driving wilt 3. The board 34 is then connected to the base 43 of the right brake cylinder 4 to connect the driving unit 3 and the right positioning socket 33 to I0 the right brake cylinder 4. The right positioning socket 33 is engaged with the notch 340 of the board 34 and the base 43 of tile left brake cylinder 4. The positioning rod 22 of the rotation unit 2 are located corresponding tot eh notch 42 of the recesses 42 of the valve 41 of the right brake cylinder 4. The user holds the driving rod 35 to rotate the operation rod 30 of the driving unit 3 so that the driving unit 3 moves rotationally forward to drive the rotation unit 2 to move the valve 41 back to its initial position to complete the adjustment to the right brake cylinder 4.
The present invention uses only one driving unit 3 and one rotation unit 2 to adjust the brake cylinders of different sizes. The present invention is able to adjust the left and right brake cylinders to reduce users' economical burden and the brake cylinder adjustment assembly of the present invention is compact and light so as to be carried conveniently.
While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that frirther embodiments may be made without departing from the scope of the present invention.

Claims (4)

  1. WHAT IS CLAIMED IS: 1. A brake cylinder ad] ustment assembly comprising: a rotation unit having a rotatable disk, a fixed disk, at least two positioning rods and a clip, the rotatable disk having at least two curved slots defined in one side thereof and a through hole defined centrally through the rotatable disk, the fixed disk having at least two slide slots in a first side thereof and two positioning slots defined in a second side of the fixed disk and located corresponding to the at least two slide slots, a protrusion extending from the second side of the fixed disk and extending through the through hole of the rotatable disk, the protrusion having a polygonal hole defined therein and a groove defined in an outside of the protrusion, the clip is engaged with the groove, the at least two positioning rods engaged with the at least two slide slots of the fixed disk, the each of the at least two positioning rods having a positioning flange at an end thereof and the two respective positioning flanges engaged with the positioning slots of the fixed disk, each of the positioning flanges having a guide extending therefrom which is engaged with the curved slot corresponding thereto, and a driving unit having an operation rod, a left positioning socket, a right positioning socket, a board and a driving rod, the operation rod having a left threaded section and a right threaded section defined hi left and right sections thereof, a left hole defined through the operation rod and located close to one end of the left threaded section, a right hole defined through the operation rod and located close to one end of the right threaded section, a polygonal left end part and a polygonal right end part respective extending from two ends of the operation rod, the left end part having a left positioning bead retractably engaged with one side thereof; the polygonal right end part having a right positioning bead retractably engaged with one side thereof; the left positioning socket having inner threads defined therein and the right positioning socket having inner threads defined therein, the left positioning socket and the right positioning socket respectively and threadedly connected to the left threaded section and the right threaded section, the left positioning socket having a first flange and the right positioning socket having a second flange, the board having a notch, the left positioning socket or the right positioning socket engaged with the notch of the board, the driving rod extending through the left hole or the right hole of the operation rod.
  2. 2. The assembly as claimed in claim 1, wherein the operation rod has a tubular portion extending from a mediate portion thereof and an annular groove is defined in outside of the tubular portion, a fixed socket is mounted to the mediate portion of the operation rod, the fixed socket has a polygonal outer body and a passage is defined axially through the fixed socket, a lip extends from an inside of the passage and engaged with the annular groove of the tubular portion.
  3. 3. The assembly as claimed in claim 1, wherein the rotatable disk has a anti-slip surface defined in outside thereof
  4. 4. A brake cylinder adjustment assembly substantially as hereinbefore described with reference to and as shown in Figures 2 to 10 of the accompanying drawings.
GB201313753A 2013-08-01 2013-08-01 Brake cylinder adjustment assembly Expired - Fee Related GB2504007B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB201313753A GB2504007B (en) 2013-08-01 2013-08-01 Brake cylinder adjustment assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201313753A GB2504007B (en) 2013-08-01 2013-08-01 Brake cylinder adjustment assembly

Publications (3)

Publication Number Publication Date
GB201313753D0 GB201313753D0 (en) 2013-09-18
GB2504007A true GB2504007A (en) 2014-01-15
GB2504007B GB2504007B (en) 2014-11-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB201313753A Expired - Fee Related GB2504007B (en) 2013-08-01 2013-08-01 Brake cylinder adjustment assembly

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2517599A (en) * 2014-09-02 2015-02-25 Shu-Hui Chen Wheel cylinder adjuster
GB2531833A (en) * 2015-04-23 2016-05-04 Joinwin Co Ltd Pushing tool for a piston of a wheel cylinder
EP3069826A1 (en) * 2015-03-17 2016-09-21 Poul Chang Metal Industry Co., Ltd. Fast-positioning brake slave cylinder adjuster
GB2547741A (en) * 2016-02-26 2017-08-30 Bo Chen Hung Co Ltd Piston position installation device of brake cylinder
GB2548945A (en) * 2016-03-30 2017-10-04 Bo Chen Hung Co Ltd Adjusting assembly of brake cylinder installation device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100212924A1 (en) * 2009-02-21 2010-08-26 Lai-Chen Liu Wheel cylinder brake adjuster
GB2494226A (en) * 2012-04-05 2013-03-06 Shu-Hui Chen Wheel cylinder adjuster

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100212924A1 (en) * 2009-02-21 2010-08-26 Lai-Chen Liu Wheel cylinder brake adjuster
GB2494226A (en) * 2012-04-05 2013-03-06 Shu-Hui Chen Wheel cylinder adjuster

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2517599A (en) * 2014-09-02 2015-02-25 Shu-Hui Chen Wheel cylinder adjuster
GB2517599B (en) * 2014-09-02 2016-09-28 Chen Shu-Hui Wheel cylinder adjuster
EP3069826A1 (en) * 2015-03-17 2016-09-21 Poul Chang Metal Industry Co., Ltd. Fast-positioning brake slave cylinder adjuster
GB2531833A (en) * 2015-04-23 2016-05-04 Joinwin Co Ltd Pushing tool for a piston of a wheel cylinder
GB2531833B (en) * 2015-04-23 2017-04-26 Joinwin Co Ltd Pushing tool for a piston of a wheel cylinder
GB2547741A (en) * 2016-02-26 2017-08-30 Bo Chen Hung Co Ltd Piston position installation device of brake cylinder
GB2547741B (en) * 2016-02-26 2018-01-24 Bo Chen Hung Co Ltd Piston position installation device of brake cylinder
GB2548945A (en) * 2016-03-30 2017-10-04 Bo Chen Hung Co Ltd Adjusting assembly of brake cylinder installation device
GB2548945B (en) * 2016-03-30 2018-02-21 Bo Chen Hung Co Ltd Adjusting assembly of brake cylinder installation device

Also Published As

Publication number Publication date
GB2504007B (en) 2014-11-05
GB201313753D0 (en) 2013-09-18

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 20230801