CN111322329B - Slack adjuster between brake pad and wheel, and brake cylinder - Google Patents
Slack adjuster between brake pad and wheel, and brake cylinder Download PDFInfo
- Publication number
- CN111322329B CN111322329B CN201911279844.3A CN201911279844A CN111322329B CN 111322329 B CN111322329 B CN 111322329B CN 201911279844 A CN201911279844 A CN 201911279844A CN 111322329 B CN111322329 B CN 111322329B
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- Prior art keywords
- ratchet
- slack adjuster
- wheel
- brake pad
- brake
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- 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
- F16D65/40—Slack adjusters mechanical
- F16D65/42—Slack adjusters mechanical non-automatic
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a slack adjuster and a brake cylinder between a brake block and a wheel, which are used for easily installing a limiting part for limiting rotation of a ratchet wheel caused by vibration. A slack adjuster (30) between a brake pad and a wheel includes: a ratchet (32) which is attached to the loop bar and in which a push rod for driving the brake pad is housed; a pawl (34) engaged with the ratchet (32) for restricting rotation of the ratchet (32) in one direction; and a restricting portion (40) for restricting rotation of the ratchet (32) due to vibration, and having a ratchet urging member (41) and a coil spring (42) as mutually independent members, the ratchet urging member (41) being in contact with teeth of the ratchet (32), the coil spring (42) for absorbing vibration of the ratchet urging member (41).
Description
Technical Field
The present invention relates to a slack adjuster between a brake pad and a wheel, and a brake cylinder.
Background
The brake apparatus applies braking by pressing brake pads against wheels using a push rod. The brake device transmits an output of a piston of the cylinder to the loop bar, and a push rod accommodated in the loop bar moves the brake pad relative to the wheel. The brake apparatus includes a slack adjuster that automatically adjusts a clearance between the wheel and the brake pads.
The slack adjuster includes: an adjusting push rod for converting the movement of the push rod into up-and-down movement; a ratchet wheel mounted on the loop bar; and a pawl portion that rotates the ratchet wheel in one direction in accordance with movement of the lever push rod. When the clearance between the brake shoe and the wheel is equal to or greater than a predetermined value, the adjusting push rod is largely operated, the pawl rotates the ratchet, the sleeve rod rotates together with the ratchet, and the push rod screwed to the sleeve rod is displaced toward the wheel side, so that the clearance is adjusted to be within the predetermined value.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2013-087877
Disclosure of Invention
Problems to be solved by the invention
However, with the lash adjuster described in patent document 1, the ratchet is restricted from rotating accidentally by a leaf spring. When the plate spring is mounted, the urging force to the ratchet needs to be adjusted.
The present invention has been made in view of the above circumstances, and an object thereof is to provide a slack adjuster and a brake cylinder between a brake pad and a wheel, which facilitate attachment of a restricting portion for restricting an unintended rotation of a ratchet.
Means for solving the problems
A gap adjusting mechanism between a brake pad and a wheel for solving the above problems includes: a ratchet wheel which is mounted on the loop bar and is used for driving a push rod of the brake block to be accommodated in the loop bar; a pawl portion engaged with the ratchet for restricting rotation of the ratchet in one direction; and a restricting portion for restricting rotation of the ratchet wheel due to vibration, and having a contact portion that contacts with teeth of the ratchet wheel and an elastic portion for absorbing vibration of the contact portion as mutually independent members.
According to the above configuration, since the elastic portion absorbs the vibration of the contact portion, adjustment at the time of attaching the contact portion is not necessary, and the elastic portion may be attached by bringing the contact portion into contact with the teeth of the ratchet. Therefore, the restricting portion for restricting the rotation of the ratchet wheel due to the vibration can be easily attached.
The gap adjusting mechanism between the brake shoe and the wheel preferably includes a screw for fixing the contact portion and the elastic portion.
According to the above configuration, since the contact portion and the elastic portion can be fixed by the screw, the attachment of the restricting portion is facilitated.
The gap adjusting mechanism between the brake pad and the wheel preferably includes a rotation stopper for restricting rotation of the contact portion.
According to the above configuration, since the rotation of the contact portion is restricted by the rotation stopper portion, the contact portion can be easily attached.
The gap adjusting mechanism between the brake pad and the wheel preferably includes a pressing member that compresses the elastic portion by a predetermined value.
According to the above configuration, since the compression of the elastic portion is set to a predetermined value by the pressing member, adjustment is not necessary when the elastic portion is attached, and the attachment of the elastic portion is facilitated.
In the above gap adjustment mechanism between the brake pad and the wheel, the elastic portion is preferably a coil spring.
According to the above configuration, since the elastic portion is a coil spring, the load stress of the coil spring is small, and the change with age is small, so that the number of times of replacement of the elastic portion can be reduced.
A brake cylinder for solving the above problems includes: a cylinder that outputs braking force using air; a sleeve rod for transmitting an output of the cylinder; a push rod mounted to the loop bar; and the slack adjuster is mounted to the loop bar.
According to the above configuration, since the elastic portion absorbs the vibration of the contact portion, adjustment at the time of attaching the contact portion is not necessary, and the elastic portion may be attached by bringing the contact portion into contact with the teeth of the ratchet. Therefore, the restricting portion for restricting the rotation of the ratchet wheel due to the vibration can be easily attached.
ADVANTAGEOUS EFFECTS OF INVENTION
The present invention facilitates the installation of a restricting portion for restricting the rotation of a ratchet wheel caused by vibration.
Drawings
Fig. 1 is a sectional view showing a structure of an embodiment of a brake cylinder including a slack adjuster between a brake pad and a wheel.
Fig. 2 is a front view showing the structure of the slack adjuster of the embodiment.
Fig. 3 is an exploded perspective view showing the structure of the slack adjuster of this embodiment.
Fig. 4 is a perspective view showing the slack adjuster of the embodiment.
Description of the reference numerals
1. A brake cylinder; 10. a frame body; 11. a barrel portion; 12. a cover; 13. a cam; 13A, a bevel; 21. a cylinder body; 21A, bottom; 22. a piston; 23. releasing the spring; 24. a loop bar; 25. a push rod; 26. a supply port; 27. a working chamber; 30. a slack adjuster; 31. a loop bar outer cylinder; 31A, internal threads; 32. a ratchet wheel; 33. adjusting the push rod; 33A, a roller; 34. a pawl as a claw portion; 40. a restricting section; 41. a ratchet pushing member as a contact portion; 41A, a pressing part; 41B, a through hole; 41C, pin holes; 42. a coil spring as an elastic portion; 43. a spring urging member as an urging member; 43A, cylindrical portion; 43B, flange part; 44. a bolt as a screw; 45. a pin as a rotation stopper; 46. a spring washer; 50. a manual clearance adjustment handle; 51. a grip portion; 52. a 1 st cover; 53. and (2) a cover.
Detailed Description
Hereinafter, an embodiment of a brake cylinder including a slack adjuster between a brake pad and a wheel will be described with reference to fig. 1 to 4. A brake cylinder is mounted on an underframe of a vehicle and used as a tread brake type brake device for obtaining braking by bringing a brake pad into contact with a tread of a wheel.
(brake cylinder 1)
As shown in fig. 1, a brake cylinder 1 includes: a bottomed cylindrical cylinder 21, a piston 22 that moves in the axial direction of the cylinder 21, a release spring 23 that biases the piston 22, a rod 24 connected to the piston 22, and a rod 25 housed in the rod 24. A brake pad is attached to a tip end of the push rod 25 via a brake pad head, not shown.
The stem 24 is connected to be rotatable relative to the piston 22. The push rod 25 is screw-coupled to the sleeve rod 24. Therefore, when the sleeve rod 24 rotates, the piston 22 does not rotate, and the push rod 25 moves in a certain direction in the axial direction corresponding to the rotational direction of the sleeve rod 24.
A supply port 26 for supplying compressed air into the cylinder 21 is provided in a bottom portion 21A (left side in the drawing) of the cylinder 21. The compressed air is supplied to a working chamber 27 surrounded by the cylinder 21 and the piston 22. In the brake cylinder 1, when compressed air is supplied to the working chamber 27, the piston 22 moves in a direction away from the bottom 21A of the cylinder 21. On the other hand, in the brake cylinder 1, when compressed air is discharged from the working chamber 27, the piston 22 is moved in a direction approaching the bottom 21A of the cylinder 21 by the release spring 23.
(slack adjuster 30)
The brake cylinder 1 includes a slack adjuster 30 that automatically adjusts a clearance between a wheel (not shown) and a brake pad (not shown) attached to a tip end of the push rod 25. The slack adjuster 30 is provided on the outer periphery of the lever 24, and adjusts the tip end position of the push rod 25 (brake pad) by rotating the lever 24.
The brake cylinder 1 includes a housing 10 for housing the slack adjuster 30. The frame 10 includes a bottomed cylindrical tube 11 and a lid 12 for closing an opening of the tube 11. The cylinder portion 11 closes the opening of the cylinder 21 and accommodates the slack adjuster 30. The distal ends of the loop bar 24 and the push bar 25 protrude outward from the cover 12.
A cylindrical manual gap adjustment handle 50 is fixed to the outer periphery of the distal end side of the loop bar 24. The manual gap adjustment handle 50 is fixed to the outer periphery of the lever 24 and rotates integrally with the lever 24. A grip 51 having an L-shaped cross section is provided at the distal end of the manual gap adjustment handle 50.
A 1 st cover 52 for preventing water, dust, and the like from entering is attached between the manual gap adjustment handle 50 and the cover 12 of the housing 10. Further, a 2 nd cover 53 for preventing water, dust, and the like from entering is installed between the manual gap adjustment handle 50 and the push rod 25. The cylindrical members of the 1 st cover 52 and the 2 nd cover 53 are formed in a bellows shape in cross section. The end of the 1 st cover 52 is in close contact with the lid 12 of the frame 10. The tip of the 1 st cover 52 is relatively movable with respect to the manual gap adjustment handle 50. The tip of the 2 nd cover 53 abuts against the manual gap adjustment handle 50. The tip of the 2 nd cap 53 is relatively movable with respect to the push rod 25. In a state where the 1 st cover 52 and the 2 nd cover 53 are attached, the grip portion 51 of the manual gap adjustment handle 50 is exposed. Therefore, since it is not necessary to detach the cover in order to operate the manual gap adjustment handle 50, the manual gap adjustment handle 50 can be operated while the 1 st cover 52 and the 2 nd cover 53 are kept attached.
The slack adjuster 30 includes a shank outer cylinder 31, and the shank outer cylinder 31 is attached to the outer periphery of the shank 24 so as to rotate relative to the shank 24. The stem outer cylinder 31 is fixed in its position without rotation. The slack adjuster 30 includes a ratchet 32, and the ratchet 32 is mounted to the outer periphery of the lever 24 and fixed to the lever 24. The ratchet 32 rotates integrally with the lever 24.
The slack adjuster 30 includes an adjustment push rod 33 for detecting a clearance between the wheel and the brake pad, and a cam 13 having a slope 13A for converting the movement of the loop bar 24 in the axial direction into the up-down movement of the adjustment push rod 33. A roller 33A that rolls on the slope 13A of the cam 13 is provided at the base end of the adjustment push rod 33. The cam 13 is provided on the inner wall of the cylindrical portion 11 of the frame 10. The cam 13 can be changed in the axial direction of the lever 24 by a bolt provided in the cover 12 in accordance with a desired clearance between the wheel and the brake pad. When the push rod 25 advances, the roller 33A rises along the slope 13A of the cam 13, and the roller 33A rises, and the adjustment push rod 33 moves upward. That is, the amount of rise of the roller 33A matches the amount of movement of the adjustment rod 33.
As shown in fig. 2, the slack adjuster 30 includes a pawl 34, and the pawl 34 is a claw portion that rotates in accordance with the up-and-down movement of the adjustment push rod 33. The pawl 34 passes over one tooth of the ratchet 32 and engages with the next tooth tip when the clearance between the wheel and the brake shoe is equal to or greater than a predetermined value. When the brake is released, the adjustment rod 33 moves downward, and the pawl 34 rotates the ratchet 32 by one tooth.
(regulating part 40)
As shown in fig. 2 to 4, the slack adjuster 30 includes a restricting portion 40 for restricting rotation of the ratchet 32 due to vibration. The restricting portion 40 is provided on the upper surface of the lever outer cylinder 31. The restricting portion 40 includes a ratchet urging member 41 and a coil spring 42 which are independent of each other, the ratchet urging member 41 being a contact portion which contacts with the teeth of the ratchet 32, and the coil spring 42 being an elastic portion for absorbing vibration of the ratchet urging member 41. The ratchet presser 41 has a columnar pressing portion 41A that contacts the teeth of the ratchet 32. The ratchet urging member 41 is urged by a coil spring 42.
The restriction portion 40 includes a spring urging member 43, and the spring urging member 43 is an urging member that compresses the coil spring 42 at a predetermined value. The spring biasing member 43 includes a cylindrical portion 43A penetrating the inside of the coil spring 42 and a flange portion 43B contacting the upper end of the coil spring 42. The coil spring 42 is compressed by the flange portion 43B of the spring urging member 43, and the compression of the coil spring 42 is defined as a predetermined value due to the length of the cylindrical portion 43A.
The restricting portion 40 includes a bolt 44, and the bolt 44 is a screw member that fixes the ratchet urging member 41 and the coil spring 42 to the lever outer cylinder 31. The ratchet presser 41 has a through hole 41B through which the spring presser 43 passes, not the coil spring 42. The spring presser 43 penetrates the ratchet presser 41. The bolt 44 is inserted through the spring presser 43 of the coil spring 42 and the through hole 41B of the ratchet presser 41 and screwed into the female screw 31A of the lever outer cylinder 31. A spring washer 46 is interposed between the screw head of the bolt 44 and the flange portion 43B of the spring biasing member 43. A spring washer 46 is interposed between the ratchet presser 41 and the lever outer cylinder 31. The bolt 44 is restrained from loosening by the spring washer 46.
The restricting portion 40 includes a pin 45, and the pin 45 is a rotation stopper for restricting the rotation of the ratchet presser 41. The pin 45 is fixed to the upper surface of the lever outer cylinder 31 and penetrates a pin hole 41C provided in the ratchet presser 41. The rotation of the ratchet pushing member 41 is restricted by the bolt 44 and the pin 45.
Next, the operation of the slack adjuster 30 will be described.
As shown in fig. 1, when compressed air is supplied from the supply port 26 of the cylinder 21 to the working chamber 27, the piston 22 moves to the side away from the bottom 21A of the cylinder 21, i.e., to the right in fig. 1, against the biasing force of the release spring 23. When the piston 22 moves to the right in fig. 1, the push rod 25 moves forward to the right in fig. 1 integrally with the piston 22 via the sleeve rod 24 connected to the piston 22.
When the lever 24 moves to the right in fig. 1, the slack adjuster 30 moves to the right in fig. 1, and the roller 33A of the adjustment push rod 33 moves up along the slope 13A of the cam 13, thereby moving the adjustment push rod 33 upward. When the adjustment push rod 33 moves upward, the pawl 34 rotates counterclockwise in fig. 2.
As shown in fig. 2, when the clearance between the wheel and the brake shoe is smaller than a predetermined value and the forward movement amount of the push rod 25 is smaller than a predetermined value, the rising amount of the roller 33A (the moving amount of the adjustment push rod 33) is not enough to cause the pawl 34 to pass one tooth of the ratchet 32, and the ratchet 32 does not rotate.
On the other hand, when the clearance between the wheel and the brake shoe is equal to or greater than a predetermined value and the advancing amount of the push rod 25 is equal to or greater than a predetermined value, the rising amount of the roller 33A (adjusting the moving amount of the push rod 33) causes the pawl 34 to ride over one tooth of the ratchet 32 and engage with the next tooth tip. When the brake is released by discharging the compressed air from the working chamber 27 in this state, the push rod 25 moves in the direction opposite to the forward direction, and the adjustment push rod 33 moves down along the inclined surface 13A of the cam 13, and the pawl 34 rotates the ratchet 32 by one tooth. As the ratchet 32 rotates, the loop bar 24 fixed integrally with the ratchet 32 also rotates, and the push rod 25 screwed with the loop bar 24 moves in the forward direction to adjust its position.
The restricting portion 40 of the slack adjuster 30 is always in contact with the teeth of the ratchet 32, thereby restricting rotation of the ratchet 32 due to vibration. The ratchet pressing member 41 of the regulating portion 40 is urged by a coil spring 42. Since the coil spring 42 is compressed to a predetermined value by the spring biasing member 43, adjustment as in the conventional leaf spring is not required, and the rotation of the ratchet 32 can be restricted by a predetermined biasing force only by a member incorporating the restricting portion 40. The pressing portion 41A of the ratchet presser 41 comes into contact with the teeth of the ratchet 32, and the coil spring 42 absorbs the vibration of the ratchet presser 41. Therefore, by causing the mutually independent members to exhibit the function of contacting the ratchet 32 and the function of absorbing vibration, it is possible to eliminate the need for separate assembly adjustment.
Next, the effects of the present embodiment will be described.
(1) Since the coil spring 42 absorbs the vibration of the ratchet presser 41, adjustment when attaching the ratchet presser 41 is not necessary, and the coil spring 42 may be attached by bringing the ratchet presser 41 into contact with the teeth of the ratchet 32. Therefore, the restricting portion 40 for restricting the rotation of the ratchet 32 due to the vibration can be easily attached.
(2) Since the ratchet presser 41 and the coil spring 42 can be fixed by the bolt 44, the attachment of the regulating portion 40 is facilitated.
(3) Since the rotation of the ratchet presser 41 is restricted by the pin 45, the attachment of the ratchet presser 41 is facilitated.
(4) Since the compression of the coil spring 42 is set to a predetermined value by the pressing member, adjustment is not required when the coil spring 42 is attached, and the coil spring 42 is easily attached.
(5) Since the load stress of the coil spring 42 is small and the change with age is small, the number of times of replacement of the coil spring 42 can be reduced.
(other embodiments)
The above embodiment can be modified and implemented as follows. The above-described embodiments and the following modifications can be combined and implemented within a range not inconsistent with the technical aspects.
In the above embodiment, the spring washer 46 is used for the restricting portion 40, but a flat washer may be used.
In the above embodiment, the spring washer 46 is interposed between the screw head of the bolt 44 and the flange portion 43B of the spring pusher 43, but the spring washer 46 between the screw head of the bolt 44 and the flange portion 43B of the spring pusher 43 may be omitted.
In the above embodiment, the spring washer 46 is interposed between the ratchet presser 41 and the stem outer cylinder 31, but the spring washer 46 between the ratchet presser 41 and the stem outer cylinder 31 may be omitted.
In the above embodiment, the coil spring 42 is used as the elastic portion for absorbing the vibration of the ratchet presser 41. However, the present invention is not limited to the coil spring, and an elastic portion formed of an elastic material such as rubber may be used. For example, instead of the coil spring 42 and the spring pusher 43, a cylindrical elastic portion formed of an elastic material may be screwed to the lever outer cylinder 31 to absorb the vibration of the ratchet pusher 41.
In the above embodiment, the spring pressing member 43 that compresses the elastic portion by a predetermined value is included, but the spring pressing member 43 may be omitted.
In the above embodiment, the pin 45 for restricting the rotation of the ratchet pushing member 41 is included. However, the pin 45 as the rotation stopper may be omitted.
In the above embodiment, the bolt 44 for fixing the ratchet pushing member 41 and the coil spring 42 to the lever outer cylinder 31 is included. However, the ratchet presser 41 and the coil spring 42 may be fixed to a press-fitting member of the stem outer cylinder 31 by press-fitting, instead of the screw.
In the above embodiment, the slack adjuster 30 provided in the tread brake type brake cylinder is used, but a slack adjuster provided in a disc brake type brake device may be used.
Claims (8)
1. A slack adjuster between a brake pad and a wheel, wherein,
the slack adjuster between the brake pad and the wheel includes:
a ratchet wheel which is mounted on the loop bar and is used for driving a push rod of the brake block to be accommodated in the loop bar;
a pawl portion engaged with the ratchet for restricting rotation of the ratchet in one direction; and
and a restricting portion for restricting rotation of the ratchet wheel due to vibration, and having a contact portion that contacts with teeth of the ratchet wheel and an elastic portion for absorbing vibration of the contact portion as mutually independent members.
2. The slack adjuster between a brake pad and a wheel according to claim 1,
the slack adjuster between the brake pad and the wheel includes a screw for fixing the contact portion and the elastic portion.
3. The slack adjuster between a brake pad and a wheel according to claim 1,
the slack adjuster between the brake pad and the wheel includes a rotation stop portion for limiting rotation of the contact portion.
4. The slack adjuster between a brake pad and a wheel according to claim 2,
the slack adjuster between the brake pad and the wheel includes a rotation stop portion for limiting rotation of the contact portion.
5. A slack adjuster between a brake pad and a wheel according to any one of claims 1 to 4,
the slack adjuster between the brake pad and the wheel includes an urging member that compresses the elastic portion at a predetermined value.
6. A slack adjuster between a brake pad and a wheel according to any one of claims 1 to 4,
the elastic portion is a coil spring.
7. The slack adjuster between a brake pad and a wheel according to claim 5,
the elastic portion is a coil spring.
8. A brake cylinder in which, in a brake cylinder,
this brake cylinder includes:
a cylinder that outputs braking force using air;
a sleeve rod for transmitting an output of the cylinder;
a push rod mounted to the loop bar; and
a slack adjuster according to any one of claims 1 to 7, mounted to the rod.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018235259A JP7202871B2 (en) | 2018-12-17 | 2018-12-17 | Gap adjuster between brake shoe and wheel and brake cylinder |
| JP2018-235259 | 2018-12-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111322329A CN111322329A (en) | 2020-06-23 |
| CN111322329B true CN111322329B (en) | 2022-03-29 |
Family
ID=71106800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911279844.3A Active CN111322329B (en) | 2018-12-17 | 2019-12-13 | Slack adjuster between brake pad and wheel, and brake cylinder |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7202871B2 (en) |
| CN (1) | CN111322329B (en) |
| TW (1) | TWI728596B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524186B (en) * | 2020-12-21 | 2024-05-17 | 任丘市博科机电新技术有限公司 | Automatic precise gap adjusting device for full-mechanical disc brake and design method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58191334A (en) * | 1982-04-30 | 1983-11-08 | Mitsubishi Electric Corp | Solenoid braking device |
| CN2176234Y (en) * | 1992-11-07 | 1994-09-07 | 碧山自动化机械有限公司 | Improved structure of supersonic welder |
| JPH08189522A (en) * | 1995-01-06 | 1996-07-23 | Mitsubishi Heavy Ind Ltd | Locking device for bolt or nut |
| CN103057562A (en) * | 2011-10-19 | 2013-04-24 | 三菱重工业株式会社 | Brake device |
| CN204614718U (en) * | 2015-06-03 | 2015-09-02 | 浙江箭环电气开关有限公司 | The master controller that a kind of shifting-position mechanism improves |
| JP2015218017A (en) * | 2014-05-16 | 2015-12-07 | 三菱電機株式会社 | Emergency brake device of escalator and escalator |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB845806A (en) * | 1957-05-28 | 1960-08-24 | Westinghouse Air Brake Co | Improvements relating to fluid pressure braking apparatus |
| JPS6017565Y2 (en) * | 1978-03-15 | 1985-05-29 | 三菱重工業株式会社 | Position adjustment mechanism |
| JPS56143828A (en) * | 1980-04-10 | 1981-11-09 | Nisshinbo Ind Inc | Automatic adjuster for drum brake |
| JPS60100259U (en) * | 1983-12-16 | 1985-07-08 | 株式会社ナブコ | Brake cylinder for railway vehicles |
| JPS60114358U (en) * | 1984-01-11 | 1985-08-02 | 株式会社東海理化電機製作所 | stepping device |
| GB8520282D0 (en) * | 1985-08-13 | 1985-09-18 | Lucas Ind Plc | Brake adjusters |
-
2018
- 2018-12-17 JP JP2018235259A patent/JP7202871B2/en active Active
-
2019
- 2019-12-13 CN CN201911279844.3A patent/CN111322329B/en active Active
- 2019-12-13 TW TW108145799A patent/TWI728596B/en active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58191334A (en) * | 1982-04-30 | 1983-11-08 | Mitsubishi Electric Corp | Solenoid braking device |
| CN2176234Y (en) * | 1992-11-07 | 1994-09-07 | 碧山自动化机械有限公司 | Improved structure of supersonic welder |
| JPH08189522A (en) * | 1995-01-06 | 1996-07-23 | Mitsubishi Heavy Ind Ltd | Locking device for bolt or nut |
| CN103057562A (en) * | 2011-10-19 | 2013-04-24 | 三菱重工业株式会社 | Brake device |
| JP2015218017A (en) * | 2014-05-16 | 2015-12-07 | 三菱電機株式会社 | Emergency brake device of escalator and escalator |
| CN204614718U (en) * | 2015-06-03 | 2015-09-02 | 浙江箭环电气开关有限公司 | The master controller that a kind of shifting-position mechanism improves |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202032035A (en) | 2020-09-01 |
| JP7202871B2 (en) | 2023-01-12 |
| JP2020097955A (en) | 2020-06-25 |
| CN111322329A (en) | 2020-06-23 |
| TWI728596B (en) | 2021-05-21 |
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