CN110805630A - Horseshoe type water-cooling system - Google Patents
Horseshoe type water-cooling system Download PDFInfo
- Publication number
- CN110805630A CN110805630A CN201911263435.4A CN201911263435A CN110805630A CN 110805630 A CN110805630 A CN 110805630A CN 201911263435 A CN201911263435 A CN 201911263435A CN 110805630 A CN110805630 A CN 110805630A
- Authority
- CN
- China
- Prior art keywords
- water
- brake
- wear
- shoe
- cooling system
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 48
- 239000010959 steel Substances 0.000 claims abstract description 48
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052742 iron Inorganic materials 0.000 claims abstract description 14
- 239000000498 cooling water Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 230000002349 favourable effect Effects 0.000 abstract 1
- 210000000003 hoof Anatomy 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- 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
- F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
- F16D51/16—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis
- F16D51/18—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes
-
- 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
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/08—Bands, shoes or pads; Pivots or supporting members therefor for internally-engaging brakes
- F16D65/09—Pivots or supporting members 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
- F16D65/78—Features relating to cooling
- F16D65/82—Features relating to cooling for internally-engaging brakes
- F16D65/833—Features relating to cooling for internally-engaging brakes with closed cooling system
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a horseshoe type water-cooling system, and belongs to the technical field of automobiles. The shoe type water-cooling system comprises a brake drum assembly and a brake shoe assembly. The brake drum assembly comprises a brake drum, a first brake pad and a second brake pad, wherein the first brake pad and the second brake pad are fixed on the inner ring of the brake drum. The first shoe iron piece and the second shoe iron piece comprise rib plates, wear-resistant steel plates and water bins, the two ends of each water bin are respectively connected with a water inlet and a water outlet, and the wear-resistant steel plates are respectively opposite to the first brake pads and the second brake pads. Improve on the brake shoe subassembly, the water in the sump directly can with the inner circle contact of wear-resisting steel sheet, utilize the circulating water cooling principle, the water in the sump directly can cool down wear-resisting steel sheet, and then makes the temperature of wear-resisting steel sheet can not too high, reduces the potential safety hazard, through the design of gusset, is favorable to improving the structural strength of whole brake shoe subassembly.
Description
Technical Field
The invention relates to the field of automobiles, in particular to a horseshoe type water-cooling system.
Background
Brake basins on a drive axle and a trailer axle of the existing large-scale truck and special vehicle are poor in heat dissipation performance, a large amount of heat is collected in the braking and high-speed rotating processes, a brake shoe is easy to generate thermal deformation and even crack under the influence of high temperature, and certain potential safety hazards are achieved. How to invent a horseshoe type water cooling system to improve the problems becomes a problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In order to make up for the defects, the invention provides a shoe type water-cooling system, which aims to solve the problem that a brake shoe and a brake drum are easy to generate thermal deformation under the influence of high temperature.
The invention is realized by the following steps:
the invention provides a shoe type water-cooling system which comprises a brake drum assembly and a brake shoe assembly.
The brake drum assembly comprises a brake drum, a first brake pad and a second brake pad, wherein the first brake pad and the second brake pad are fixed on the inner ring of the brake drum.
The brake shoe subassembly includes first hoof iron spare and the second hoof iron spare of two sets of relative settings, first hoof iron spare and second hoof iron spare all include gusset, wear-resisting steel sheet and sump, wear-resisting steel sheet is fixed in one side of sump, the gusset runs through the sump just the gusset also connect in wear-resisting steel sheet, the both ends of sump are connected with water inlet and delivery port respectively, wear-resisting steel sheet is relative respectively first brake block with the setting of second brake block.
In an embodiment of the invention, the rib plate comprises a circular arc-shaped plate body, and a plurality of process holes are formed in the plate body.
In an embodiment of the present invention, both ends of the plate body are provided with a limiting hole.
In an embodiment of the invention, the limiting holes are all semi-circular holes.
In an embodiment of the invention, the first brake pad and the second brake pad are both arc-shaped brake pads, and both the first brake pad and the second brake pad are attached to the inner ring of the brake drum.
In an embodiment of the present invention, the wear-resistant steel plate is also arc-shaped, and the centers of circles corresponding to the wear-resistant steel plate, the brake drum, the first brake pad and the second brake pad coincide.
In an embodiment of the invention, the ends of the first brake pad and the second brake pad are provided with arc chamfers, and the ends of the wear-resistant steel plate are also provided with arc chamfers.
In an embodiment of the present invention, the water inlet and the water outlet are both screwed with a pipe joint.
In one embodiment of the invention, one of said pipe connections is configured to be connected to a circulation pump in the cooling water tank, and the other of said pipe connections is connected to the cooling water tank by a pipe.
In one embodiment of the invention, the edge of the plate body is attached to the inner ring of the wear-resistant steel plate.
The invention has the beneficial effects that: according to the horseshoe type water-cooling system obtained through the design, when the horseshoe type water-cooling system is used, the brake shoe assembly is improved, when the horseshoe type water-cooling system is used, the wear-resistant steel plate is fixed on one side of the water bin, when the wear-resistant steel plate is braked, the first brake pad and the second brake pad can be in friction contact, water in the water bin can be directly in contact with the inner ring of the wear-resistant steel plate, the water inlet and the water outlet are respectively connected to the two ends of the water bin, the water in the water bin can directly cool the wear-resistant steel plate through the circulating water cooling principle, the temperature of the wear-resistant steel plate cannot be too high, potential safety hazards are reduced, the structural strength of the whole horseshoe assembly is favorably improved through the design of the rib plate, the possibility that the wear-resistant.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a shoe-type water-cooling system according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a brake drum assembly provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of a first shoe member according to an embodiment of the present invention;
fig. 4 is a schematic view of an internal structure of a first shoe member according to an embodiment of the present invention;
fig. 5 is a schematic perspective view of a first shoe member according to an embodiment of the present invention;
FIG. 6 is a schematic view of a rib plate structure provided by an embodiment of the invention;
fig. 7 is a schematic structural view of a water sump according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a wear-resistant steel plate according to an embodiment of the present invention.
In the figure: 10-a brake drum assembly; 110-a brake drum; 120-a first brake pad; 130-a second brake pad; 20-a brake shoe assembly; 210-a first shoe iron; 2110-rib plate; 2111-plate body; 2112-fabrication holes; 2113-limiting hole; 2120-water sump; 2130 wear-resistant steel plate; 2140-water inlet; 2150-water outlet; 220-second shoe iron.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Examples
Referring to fig. 1, the present invention provides a shoe type water cooling system, which includes a brake drum assembly 10 and a brake shoe assembly 20.
Referring to fig. 2, the brake drum assembly 10 includes a brake drum 110, and a first brake pad 120 and a second brake pad 130 fixed to inner rings of the brake drum 110. It should be noted that the first brake pad 120 and the second brake pad 130 are both fixed to the inner ring of the brake drum 110 by riveting, the first brake pad 120 and the second brake pad 130 are both arc-shaped brake pads, and the first brake pad 120 and the second brake pad 130 are both attached to the inner ring of the brake drum 110.
Referring to fig. 3, 4 and 5, the brake shoe assembly 20 includes two sets of first and second shoe iron pieces 210 and 220 arranged oppositely, each of the first and second shoe iron pieces 210 and 220 includes a rib plate 2110, a wear-resistant steel plate 2130 and a sump 2120, the wear-resistant steel plate 2130 is fixed on one side of the sump 2120, water in the sump 2120 can directly contact with an inner ring of the wear-resistant steel plate 2130, the rib plate 2110 penetrates the sump 2120, and the rib plate 2110 is also connected to the wear-resistant steel plate 2130, and when the brake shoe assembly is specifically arranged, the rib plate 2110, the wear-resistant steel plate 2130 and the sump 2120 are fixed in a welding mode.
In some specific embodiments, the water sump 2120 is used for storing cooling water, the water sump 2120 has a water inlet 2140 and a water outlet 2150 connected to two ends of the water sump 2120, and the water inlet 2140 and the water outlet 2150 are respectively screwed with pipe joints, one of the pipe joints is configured to be connected to a circulation pump in a cooling water tank, and the other pipe joint is connected to the cooling water tank through a pipe (the cooling water tank and the circulation pump are not shown in the specification), it should be noted that, under the action of the circulation pump, water in the cooling water tank is pumped to the water sump 2120, and the cooling water flows back to the cooling water tank through the water outlet 2150.
It should be noted that the wear-resistant steel plates 2130 are respectively disposed opposite the first brake pad 120 and the second brake pad 130. The contact between the wear-resistant steel plate 2130 and the brake pad and the braking principle are clear to those skilled in the art, and details are not described herein, the wear-resistant steel plate 2130 is also arc-shaped, and the centers of circles corresponding to the wear-resistant steel plate 2130, the brake drum 110, the first brake pad 120 and the second brake pad coincide.
In this embodiment, the ends of the first brake pad 120 and the second brake pad 130 are provided with arc chamfers, the end of the wear-resistant steel plate 2130 is also provided with arc chamfers, and the actual specifications and the types of the first brake pad 120, the second brake pad 130 and the wear-resistant steel plate 2130 are selected by the prior art in the field, so detailed excrescences are not needed.
Referring to fig. 6, the rib plate 2110 includes a plate body 2111 in an arc shape, a plurality of process holes 2112 are formed in the plate body 2111, limiting holes 2113 are formed in both ends of the plate body 2111, the limiting holes 2113 are all semicircular holes, the edge of the plate body 2111 is attached to the inner ring of the wear-resistant steel plate 2130, and the plate body is fixed by welding, it should be noted that the process holes 2112 and the limiting holes 2113 are designed according to actual needs, and the number and thickness of the plate bodies 2111 and the thickness of the wear-resistant steel plate 2130 are also designed according to actual needs.
Referring to fig. 7 and 8, fig. 7 is a schematic structural view of a sump 2120 according to an embodiment of the present invention, and fig. 8 is a schematic structural view of a wear-resistant steel plate 2130 according to an embodiment of the present invention.
The operating principle of the horseshoe type water-cooling system is as follows: the first brake block 120 and the second brake block 130 are fixed on the inner ring of the brake drum 110, the brake shoe assembly 20 is improved, when the brake shoe assembly is used, the wear-resistant steel plate 2130 is fixed on one side of the water sump 2120, when the wear-resistant steel plate 2130 is in friction contact with the first brake block 120 and the second brake block 130 during braking, water in the water sump 2120 can directly contact with the inner ring of the wear-resistant steel plate 2130, the water inlet 2140 and the water outlet 2150 are respectively connected to two ends of the water sump 2120, water in the water sump 2120 can directly cool the wear-resistant steel plate 2130 by using a circulating water cooling principle, the temperature of the wear-resistant steel plate 2130 is not too high, the possibility that the wear-resistant steel plate 2130 deforms due to high temperature is favorably reduced, potential safety hazards are reduced, and the structural strength of the whole brake shoe assembly 20 is favorably improved by the design of.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A horseshoe type water cooling system is characterized by comprising
A brake drum assembly (10), the brake drum assembly (10) comprising a brake drum (110) and first and second brake pads (120, 130) fixed to an inner ring of the brake drum (110);
the brake shoe assembly (20) comprises two sets of first shoe iron pieces (210) and second shoe iron pieces (220) which are arranged oppositely, each of the first shoe iron pieces (210) and the second shoe iron pieces (220) comprises a rib plate (2110), a wear-resistant steel plate (2130) and a water sump (2120), the wear-resistant steel plate (2130) is fixed on one side of the water sump (2120), the rib plate (2110) penetrates through the water sump (2120), the rib plate (2110) is also connected to the wear-resistant steel plate (2130), two ends of the water sump (2120) are respectively connected with a water inlet (2140) and a water outlet (2150), and the wear-resistant steel plate (2130) is arranged opposite to the first brake pad (120) and the second brake pad (130) respectively.
2. The horseshoe type water-cooling system according to claim 1, wherein the rib plate (2110) comprises a circular arc-shaped plate body (2111), and a plurality of process holes (2112) are formed in the plate body (2111).
3. The horseshoe type water-cooling system according to claim 2, wherein both ends of the plate body (2111) are provided with limiting holes (2113).
4. A horseshoe water cooling system according to claim 3, wherein the limiting holes (2113) are semi-circular holes.
5. The shoe type water-cooling system according to claim 1, wherein the first brake pad (120) and the second brake pad (130) are both arc brake pads, and the first brake pad (120) and the second brake pad (130) are both attached to an inner ring of the brake drum (110).
6. The shoe type water-cooling system according to claim 5, wherein the wear-resistant steel plate (2130) is also in a circular arc shape, and centers of circles corresponding to the wear-resistant steel plate (2130), the brake drum (110), the first brake pad (120) and the second brake pad coincide.
7. The water-cooling shoe cooling system of claim 1, wherein the ends of the first brake block (120) and the second brake block (130) are provided with arc chamfers, and the ends of the wear-resistant steel plate (2130) are also provided with arc chamfers.
8. The water-cooling horseshoe cooling system according to claim 1, wherein a pipe joint is screwed to both the water inlet (2140) and the water outlet (2150).
9. A shoe water cooling system according to claim 8, wherein one of said pipe connections is configured to be connected to a circulation pump within a cooling water tank, and the other of said pipe connections is connected to the cooling water tank by a pipe.
10. The water-cooled cooling system of a shoe type as claimed in claim 2, wherein the edge of said plate body (2111) is fitted to the inner ring of said wear resistant steel plate (2130).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911263435.4A CN110805630A (en) | 2019-12-11 | 2019-12-11 | Horseshoe type water-cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911263435.4A CN110805630A (en) | 2019-12-11 | 2019-12-11 | Horseshoe type water-cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110805630A true CN110805630A (en) | 2020-02-18 |
Family
ID=69492983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911263435.4A Pending CN110805630A (en) | 2019-12-11 | 2019-12-11 | Horseshoe type water-cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110805630A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114433591A (en) * | 2022-01-29 | 2022-05-06 | 广东韶钢松山股份有限公司 | Turnover folding dust hood |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035993A (en) * | 2018-01-12 | 2018-05-15 | 宜昌亿特利缓速器有限责任公司 | A kind of brake shoe assembly and the brake using the brake shoe assembly |
| CN208057764U (en) * | 2018-03-19 | 2018-11-06 | 梁芳文 | Brake apparatus for brake |
| CN211117251U (en) * | 2019-12-11 | 2020-07-28 | 滕州市大宏机械制造有限公司 | Horseshoe type water-cooling system |
-
2019
- 2019-12-11 CN CN201911263435.4A patent/CN110805630A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035993A (en) * | 2018-01-12 | 2018-05-15 | 宜昌亿特利缓速器有限责任公司 | A kind of brake shoe assembly and the brake using the brake shoe assembly |
| CN208057764U (en) * | 2018-03-19 | 2018-11-06 | 梁芳文 | Brake apparatus for brake |
| CN211117251U (en) * | 2019-12-11 | 2020-07-28 | 滕州市大宏机械制造有限公司 | Horseshoe type water-cooling system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114433591A (en) * | 2022-01-29 | 2022-05-06 | 广东韶钢松山股份有限公司 | Turnover folding dust hood |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211117251U (en) | Horseshoe type water-cooling system | |
| CN210949624U (en) | Liquid circulation heat dissipation brake structure | |
| CN110805630A (en) | Horseshoe type water-cooling system | |
| CN112549872A (en) | Solid tyre | |
| CN107906124A (en) | A kind of demifacet axis rotating liquid bearing | |
| CN214727971U (en) | Solid tyre | |
| CN210121617U (en) | Water-cooled drawing die box | |
| CN114087349B (en) | Vehicle drive axle assembly | |
| CN215398003U (en) | High-strength wear-resistant aluminum alloy hub | |
| CN212073589U (en) | Support and tipper | |
| CN219192329U (en) | Split steering knuckle | |
| CN207848255U (en) | A kind of vanadium titanium vermicular cast iron automobile brake drum | |
| CN112248983A (en) | Truck sump type brake drum assembly | |
| CN210313250U (en) | Oil cylinder support leg | |
| CN107662086A (en) | A kind of manufacture method of automotive door hinge | |
| CN219827518U (en) | High-strength clutch pressure plate for large-sized vehicle | |
| CN213056578U (en) | Automobile hub with high heat dissipation capacity | |
| CN217532815U (en) | Symmetric circulation water-cooling brake device for large truck | |
| CN215567121U (en) | Pin shaft for pump truck | |
| CN206436742U (en) | A kind of modified back axle | |
| CN210715675U (en) | Brake device with cooling effect | |
| CN220039230U (en) | Radiating tube and radiator using same | |
| CN218945931U (en) | Plug-in type stop hook | |
| CN218877382U (en) | Aluminum alloy knuckle with casting blowdown groove | |
| CN215861114U (en) | Heat dissipation device of engineering vehicle braking system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |