CN108730365B - Synchronizer slider and synchronizer system - Google Patents
Synchronizer slider and synchronizer system Download PDFInfo
- Publication number
- CN108730365B CN108730365B CN201710265496.9A CN201710265496A CN108730365B CN 108730365 B CN108730365 B CN 108730365B CN 201710265496 A CN201710265496 A CN 201710265496A CN 108730365 B CN108730365 B CN 108730365B
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- China
- Prior art keywords
- synchronizer
- fins
- support portion
- housing
- key
- 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.)
- Expired - Fee Related
Links
- 230000007306 turnover Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 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
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
- F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
-
- 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
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
- F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
- F16D2023/0618—Details of blocking mechanism comprising a helical spring loaded element, e.g. ball
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention relates to the field of synchronizers, in particular to a synchronizer slider and a synchronizer system. The housing of the synchronizer key includes: a housing portion that is substantially cylindrical and has an opening; and a support portion extending from the housing portion toward a radially outer side of the housing portion. The supporting portion is fixed with a plurality of fins, and the plurality of fins have a function of preventing the synchronizer slider from floating or overturning. By adopting the technical scheme, the fins are additionally arranged on the structure of the box-type synchronizer sliding block, and the box-type synchronizer sliding block cannot wholly float or turn over under the action of the fins and the inner surface of the gear sleeve of the synchronizer system, so that unexpected interference between the synchronizer sliding block and the gear sleeve spline is avoided, and the cost can be saved.
Description
Technical Field
The invention relates to the field of synchronizers, in particular to a synchronizer slide block and a synchronizer system adopting the synchronizer slide block.
Background
In synchronizer systems used in manual transmissions, automatic manual transmissions, and dual clutch transmissions, synchronizer shoes are important components of the synchronizer systems. Generally, a synchronizer slider includes a housing, an elastic body, and a ball (ball pin), wherein the elastic body and the ball are mounted to the housing and the elastic body generates an elastic force in a radial direction of the synchronizer system.
In existing synchronizer systems, a box-type synchronizer block is the most typical integrated synchronizer block. As shown in fig. 1a to 1c, the case of the box-type synchronizer key includes a cylindrical housing portion 20 for housing an elastic body 30 and a ball 40, and a support portion 10 for supporting the housing portion 20. In a case where the receiving portion 20 receives the elastic body 30 and the ball 40 of the synchronizer key, the ball 40 partially protrudes from the opening of the receiving portion 20 by the elastic body 30 and is restrained by the stopper structure of the opening. The support portion 10 extends from one axial end of the housing portion 20 to the outside in the radial direction of the housing portion 20, and the support portion 10 has a substantially cubic shape as a whole. The box type synchronizer sliding block is simple to manufacture, stable in performance, numerous in types and suitable for various synchronizer systems.
However, when a synchronizer system including such a box-type synchronizer slider is in a stage after presynchronization and completion of synchronization, the synchronizer slider may sometimes float or turn to the radially outer side of the synchronizer system due to the centrifugal force. In addition, the limit structure of the box type synchronizer slider, which has an opening at one axial end of the accommodating part 20, interferes with the inner surface of the gear sleeve when the synchronizer slider floats or turns, and the whole synchronizer system fails.
Disclosure of Invention
The present invention has been made in view of the above-mentioned drawbacks of the prior art. The invention aims to avoid the interference of a synchronizer sliding block with the inner surface of a gear sleeve after synchronization is finished. Therefore, the present invention can adopt the following technical scheme.
The invention provides a synchronizer key, wherein a shell of the synchronizer key comprises: a housing portion that is substantially cylindrical and has an opening; and a support portion extending from the housing portion toward a radially outer side of the housing portion, the support portion having a plurality of fins fixed thereto, the plurality of fins having a function of preventing the synchronizer key from floating or turning over.
Preferably, the plurality of fins project radially outward of the receiving portion of the support portion.
Preferably, the support portion is provided with at least two through holes respectively located on both sides of the opening and penetrating the support portion in an axial direction of the receiving portion, and the plurality of fins are fixed in such a manner as to pass through the at least two through holes.
More preferably, the plurality of fins are all connected with the base to form a fin assembly, the plurality of fins have bent portions formed by bending after passing through the at least two through holes, and the fin assembly is fixed to the support portion along the axial direction of the receiving portion based on the bent portions of the fins, the support portion and the sandwich clamping structure of the base.
More preferably, the support portion has a skirt portion extending in an axial direction of the housing portion, and the fin assembly is fixed to the support portion in a radial direction of the housing portion based on abutment of the base portion against the skirt portion.
More preferably, the base is provided with a central through hole through which the receiving portion passes.
More preferably, the support portion includes a bottom portion extending from the side edge portion toward the receiving portion, and the base portion is formed with a notch facilitating escape of the bottom portion when assembled.
Preferably, each of the plurality of fins has a portion extending substantially in a flat plate shape radially outward along a radial direction of the housing portion
The invention also provides a synchronizer system which comprises the synchronizer slide block in any one of the technical schemes.
Preferably, the synchronizer system includes a gear hub having a notch portion for mounting the synchronizer key, and a gear sleeve, the synchronizer key being mounted to the notch portion and the gear hub supporting the synchronizer key by the fin, and in the synchronizer system, a positional relationship between a plurality of fins of the synchronizer key and an inner surface of the gear sleeve is such that the fin contacts the gear sleeve prior to the housing portion and the support portion under centrifugal force.
By adopting the technical scheme, the fins are additionally arranged on the structure of the box-type synchronizer sliding block, and the box-type synchronizer sliding block cannot wholly float or turn over under the action of the fins and the inner surface of the gear sleeve of the synchronizer system, so that unexpected interference between the synchronizer sliding block and the gear sleeve spline is avoided, and the cost can be saved.
Drawings
FIG. 1a is a schematic perspective view of a synchronizer key according to the prior art; FIG. 1b is another perspective view of the synchronizer key of FIG. 1 a; FIG. 1c is an exploded view of the synchronizer key of FIG. 1 a.
FIG. 2a is a schematic perspective view of a synchronizer key according to an embodiment of the present invention; FIG. 2b is another perspective view of the synchronizer key of FIG. 2 a; fig. 2c is a schematic cross-sectional view of the synchronizer key of fig. 2 a.
FIG. 3a is a schematic perspective view of the fin assembly of the synchronizer key of FIG. 2a prior to assembly with the receiving portion and the support portion of the synchronizer key; fig. 3b is an explanatory view for explaining mounting of the vane assembly of fig. 3 a.
FIG. 4 is a schematic diagram of a partial structure of a synchronizer system including the synchronizer key of FIG. 2 a.
Description of the reference numerals
10 support 20 receiving part 30 elastic member 40 ball
Axis R radial D1 first distance D2 second distance
Detailed Description
Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following embodiments, unless otherwise specified, the axial direction "a" refers to the axial direction of the cylindrical housing portion of the synchronizer key; the radial direction "R" is a radial direction of the cylindrical housing portion of the synchronizer key.
As shown in fig. 2a to 2c, the synchronizer key according to an embodiment of the present invention includes a support portion 1, a receiving portion 2, an elastic body 3, a ball 4, and a fin assembly 5, wherein the support portion 1, the receiving portion 2, the elastic body 3, and the ball 4 constitute a box-type synchronizer key as described in the background art.
In the present embodiment, the housing 2 has a cylindrical shape, and the housing 2 has an opening 21 at one end (an upper end in fig. 2c) in the axial direction thereof. The elastic body 3 and the ball 4 can be sequentially placed in the receiving portion 2 through the opening 21 to form a structure for elastically supporting the ball 4 through the elastic body 3 in the receiving portion 2 and the elastic body 3 makes a portion of the ball 4 protrude from the receiving portion 2 at the opening 21 when no external force acts, and the stopper structure at the opening 21 prevents the ball 4 from coming out of the receiving portion 2.
In the present embodiment, the support portion 1 extends from one end portion in the axial direction of the housing portion 2 toward the outside in the radial direction of the housing portion 2. The support 1 has a cuboid shape as a whole and the support 1 is formed by a top portion 11, a side edge portion 13 and a bottom portion 14.
The top portion 11 of the support portion 1 extends substantially in a flat plate shape radially outward from the peripheral edge of the opening 21 of the housing portion 2. In the present embodiment, the top portion 11 is finally formed in a rectangular shape. The top portion 11 is formed with one through hole 12 at positions on both sides of the opening 21 in the long side direction of the rectangular shape (i.e., in the radial direction R), respectively. Two through holes 12 are formed near the opening 21 of the housing 2 and penetrate the top portion 11 in the axial direction a.
The skirt portion 13 extends in a flat plate shape over the entire periphery of the tip portion 11 toward the other end portion (the lower end portion in fig. 2c) in the axial direction of the housing portion 2 by a certain length, so that a housing space for housing the vane assembly 5 is formed between the tip portion 11 and the skirt portion 13.
The bottom portion 14 extends radially inward from the peripheral edge of the skirt portion 13 of the support portion 1, and more specifically, in the present embodiment, the bottom portion 14 extends flat and plate-like from both edges of the skirt portion 13 toward each other.
In the present embodiment, the flap assembly 5 is mounted in the accommodation space of the support portion 1 surrounded by the top portion 11 and the side edge portion 13. As shown in fig. 3a, the fin assembly 5 is formed of a plate-shaped base 52 and two fins 51 extending from the base 52.
As shown in fig. 3a, the base 52 has a flat plate shape. Before the fin assembly 5 is assembled to the housing 2 and the support 1, the two fins 51 stand vertically at right angles to the base 52 from the two edges of the main body of the base 52 and have the same height, respectively. The base 52 includes four projections 53 located at positions on both sides of the two fins 51, respectively, and in the same plane as the main body of the base 52.
A central through hole 55 corresponding to the shape and size of the housing 2 is provided at the central position of the base 52; and a notch 54 corresponding to the bottom 14 of the support 1 is formed between the projections 53 at a position outside the two fins 51, the notch 54 being used to escape the bottom 14 when the fin assembly 5 is mounted to the support 1.
The process of attaching the vane assembly 5 to the housing space of the housing portion 2 and the support portion 1 will be briefly described below. When mounting the flap assembly 5 to the receiving space of the support 1 from the lower side in fig. 2c, first, the receiving portion 2 passes through the central through hole 55; then, the fins 51 are made to project into the through holes 12 of the top 11 of the support 1; further, the base portion 52 of the flap assembly 5 is mounted to the above-mentioned accommodating space of the support portion 1 by making the flap assembly 5 escape from the bottom portion 14 of the support portion 1 through the notch 54; further, the base portion 52 including the protruding portion 53 is entirely located in the above-mentioned housing space and abuts against the side edge portion 13 from the inside, so that the flap assembly 5 and the support portion 1 are fixed in the radial direction R of the housing portion 2, that is, the flap assembly 5 cannot move relative to the support portion 1 in the radial direction R and cannot rotate relative to the support portion 1, thereby forming the state shown in fig. 3 b; finally, the fin 51 protruding from the through hole 12 is bent 90 degrees to form a bent portion 511 (see fig. 2c), so that based on the sandwiched structure of the bent portion 511 of the fin 51, the support portion 1 and the base portion 52 (the bent portion 511 and the base portion 52 sandwich the support portion 1), the fixation between the fin assembly 5 and the support portion 1 along the axial direction a of the receiving portion 2 is achieved, and further, the fin assembly 5 cannot move relative to the support portion 1 in the axial direction a, thereby forming the final state shown in fig. 2 a.
In the final state, the fins 51 protruding from the through hole 12 extend substantially in a flat plate shape radially outward of the support portion 1 along the radial direction R, and are finally positioned at substantially the same position in the axial direction a. In this way, when the synchronizer slider is attached to the synchronizer system, the fin 51 does not interfere with the sleeve gear undesirably while playing a role of preventing the synchronizer slider from floating or turning over.
In addition, the invention also provides a synchronizer system which comprises three synchronizer sliding blocks, a gear hub, a gear sleeve and the like with the structure. The gear hub has a notch portion for mounting a synchronizer block, the synchronizer block is mounted to the notch portion and the gear hub supports the synchronizer block by a fin.
Fig. 4 shows a partial structural schematic of a synchronizer system comprising one of the above-described synchronizer shoes. In a state where the synchronizer key S1 according to the present invention is mounted to the notch portion of the gear hub S2 of the synchronizer system, the wing piece 51 is overlapped with the gear hub S2 so that the entire synchronizer key S1 is supported by the wing piece 51. In this synchronizer system, the positional relationship between the tabs 51 of the synchronizer slider S1 and the inner surface (spline teeth) of the gear sleeve S3 is such that the tabs 51 contact the inner surface (spline teeth) of the gear sleeve S3 prior to the support 1 and the housing 2 under the centrifugal force. In order to achieve the above object, referring to fig. 4, a first distance (minimum distance) D1 between the tabs 51 and the inner surface (spline teeth) of the gear sleeve S3 is made smaller than a second distance (minimum distance) D2 between the support 1 and the receiving portion 2 and the inner surface (spline teeth) of the gear sleeve S3. Thus, the fin 51 has a function of preventing the synchronizer key S1 from floating or turning.
Although the above embodiments have described specific embodiments of the present invention in detail, it should be noted that:
1. although it is described in the above-described embodiment that two fins 51 are used on both sides of the opening 21, the number of fins is not limited thereto, and any number of multiple fins may be provided on both sides of the opening 21 as needed. For example, one of the fins 51 in the above-described embodiment is divided into a plurality of fins spaced apart and arranged side by side.
2. Although the fin assembly 5 is integrally fixed to the support 1 by the fins 51 and the base 52 in a snap-fit manner in the above-described embodiment, the present invention is not limited thereto. The flap assembly 5 may be secured to the support 1 by other means such as welding or the like.
Further, in the case where the plurality of fins 51 are not fixed to each other, each fin 51 may be fixed to the support portion 1 by welding or the like.
It should be understood that since the dimensions of the portions of the support portion 1 of the box-type synchronizer key on both sides of the opening 21 of the receiving portion 2 are narrow and the wall thickness of the support portion 1 is very small (for example, 0.6mm), the operation difficulty of fixing the plurality of fins to the box-type synchronizer key by welding or the like in actual production is large, and the technical solution described in the above-described embodiment can be easily and reliably implemented.
3. Although not explicitly described in the above embodiments, it is to be understood that the synchronizer key of the present invention is an improvement over the prior art box synchronizer key. Therefore, the synchronizer slide block is obtained by adding the fins under the condition of not changing the original structure of the existing box type synchronizer slide block. Thus, the additional anti-interference function can be realized on the premise of not influencing the function of the original box type synchronizer sliding block, and the cost is greatly saved compared with the cost for redeveloping a new synchronizer sliding block.
4. Although not specifically described in the above-described embodiment, the fin assembly 5 shown in fig. 3a may be obtained by stamping a plate-like material to obtain a stamping and then by partially bending the stamping.
5. In the above-described embodiment, it is explained that the base portion 52 including the protruding portion 53 is entirely located in the above-described housing space and abuts against the skirt portion 13 from the inside. Specifically, the overall shape of the base portion 52 including the protruding portion 53 corresponds to the accommodation space of the support portion 1 and the edges of the base portion 52 other than the edge for forming the notch 54 all abut against the side edge portion 13 from the inside. In this way, since the support 1 is formed in a cubic shape as a whole, the flap assembly 5 does not rotate with respect to the support 1 or move in the radial direction R of the housing 2.
However, the technical solution of the present invention is not limited thereto, and the same function may be achieved by fewer edges of the base portion 52 abutting against the skirt portion 13 in some cases.
By adopting the technical scheme, the fins are additionally arranged on the structure of the existing box type synchronizer sliding block, so that the box type synchronizer sliding block can not float or turn over integrally, the undesirable interference between the synchronizer sliding block and the gear sleeve is avoided, and the cost can be saved.
In addition, the scope of the present invention is not limited to the specific examples defined in the above-described embodiments, but falls within the scope of the present invention as long as a combination of technical features that fall within the claims of the present invention is satisfied.
Claims (8)
1. A synchronizer key, wherein said housing of said synchronizer key comprises:
a housing portion that is substantially cylindrical and has an opening; and
a support portion extending from the housing portion toward a radially outer side of the housing portion,
a plurality of fins having a function of preventing the synchronizer key from floating or overturning are fixed to the support portion,
the supporting part is provided with and is located respectively open-ended both sides just link up in the axial of portion of accomodating two at least through-holes of supporting part, a plurality of fins are in order to pass the mode of two at least through-holes is fixed, a plurality of fins all are connected in order to form the fin subassembly with the basal portion, a plurality of fins have and pass buckle and the kink that forms behind two at least through-holes, the fin subassembly is based on the kink of fin the supporting part and the sandwich centre gripping structure of supporting part realize with follow between the supporting part the axial of portion of accomodating is fixed.
2. The synchronizer key of claim 1, wherein the plurality of tabs project radially outward of the receiving portion of the support portion.
3. The synchronizer slider according to claim 1, wherein said support portion has a skirt portion extending in an axial direction of said receiving portion, and
the fin assembly realizes fixation between the fin assembly and the support portion in the radial direction of the receiving portion based on abutment of the base portion and the skirt portion.
4. Synchronizer according to claim 1, characterized in that the base part is provided with a central through hole through which the receiving part passes.
5. The synchronizer key of claim 3, wherein the support portion includes a bottom portion extending from the side edge portion toward the receiving portion, the base portion being formed with a notch to facilitate clearance of the bottom portion when assembled.
6. The synchronizer key according to any one of claims 1 to 5, wherein each of the plurality of fins has a portion extending substantially in a flat plate shape toward a radially outer side in a radial direction of the receiving portion.
7. A synchronizer system, characterized in that it comprises a synchronizer key according to any one of claims 1 to 6.
8. The synchronizer system according to claim 7, wherein the synchronizer system comprises a toothed hub and a toothed sleeve,
the gear hub has a notch portion for mounting the synchronizer key, the synchronizer key is mounted to the notch portion and the gear hub supports the synchronizer key through the wing,
in the synchronizer system, a positional relationship between a plurality of fins of the synchronizer slider and an inner surface of the sleeve gear is such that the fins contact the sleeve gear prior to the receiving portion and the support portion under centrifugal force.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265496.9A CN108730365B (en) | 2017-04-21 | 2017-04-21 | Synchronizer slider and synchronizer system |
| DE102018105957.4A DE102018105957A1 (en) | 2017-04-21 | 2018-03-15 | Synchronizer slide and synchronizer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265496.9A CN108730365B (en) | 2017-04-21 | 2017-04-21 | Synchronizer slider and synchronizer system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108730365A CN108730365A (en) | 2018-11-02 |
| CN108730365B true CN108730365B (en) | 2021-10-29 |
Family
ID=63714302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710265496.9A Expired - Fee Related CN108730365B (en) | 2017-04-21 | 2017-04-21 | Synchronizer slider and synchronizer system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108730365B (en) |
| DE (1) | DE102018105957A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2706661A1 (en) * | 1977-02-17 | 1978-08-24 | Volkswagenwerk Ag | Synchromesh for vehicle gear box - has locking assembly connecting two synchro rings into one axially slidable unit |
| US6186301B1 (en) * | 1998-07-21 | 2001-02-13 | INA Wälzlager Schaeffler oHG | Synchronizing device for a manual transmission, in particular synchronizer element with integrated thrust member or locking member for use in a such a synchronizing device |
| DE102006018284A1 (en) * | 2006-04-20 | 2007-10-31 | Daimlerchrysler Ag | Synchronization device e.g. multi-cone synchronization device, for use in vehicle gear, has press part lying in area of external teeth of synchronous body, and synchronous ring with switching tooth designed as sheet molded part |
| CN102235444A (en) * | 2010-05-05 | 2011-11-09 | 贺尔碧格传动技术控股有限公司 | Pre-synchronization unit of transmission |
| EP2260214B1 (en) * | 2008-03-17 | 2013-05-15 | Schaeffler Technologies AG & Co. KG | Catch |
| CN104121298A (en) * | 2014-07-14 | 2014-10-29 | 天津天海同步科技股份有限公司 | Integrated sliding block mechanism and synchronizer |
| DE102013113071A1 (en) * | 2013-11-26 | 2015-05-28 | Hoerbiger Antriebstechnik Holding Gmbh | Synchronnabe for a synchronization unit of a gearbox and synchronization unit with such a synchronous hub |
-
2017
- 2017-04-21 CN CN201710265496.9A patent/CN108730365B/en not_active Expired - Fee Related
-
2018
- 2018-03-15 DE DE102018105957.4A patent/DE102018105957A1/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2706661A1 (en) * | 1977-02-17 | 1978-08-24 | Volkswagenwerk Ag | Synchromesh for vehicle gear box - has locking assembly connecting two synchro rings into one axially slidable unit |
| US6186301B1 (en) * | 1998-07-21 | 2001-02-13 | INA Wälzlager Schaeffler oHG | Synchronizing device for a manual transmission, in particular synchronizer element with integrated thrust member or locking member for use in a such a synchronizing device |
| DE102006018284A1 (en) * | 2006-04-20 | 2007-10-31 | Daimlerchrysler Ag | Synchronization device e.g. multi-cone synchronization device, for use in vehicle gear, has press part lying in area of external teeth of synchronous body, and synchronous ring with switching tooth designed as sheet molded part |
| EP2260214B1 (en) * | 2008-03-17 | 2013-05-15 | Schaeffler Technologies AG & Co. KG | Catch |
| CN102235444A (en) * | 2010-05-05 | 2011-11-09 | 贺尔碧格传动技术控股有限公司 | Pre-synchronization unit of transmission |
| DE102013113071A1 (en) * | 2013-11-26 | 2015-05-28 | Hoerbiger Antriebstechnik Holding Gmbh | Synchronnabe for a synchronization unit of a gearbox and synchronization unit with such a synchronous hub |
| CN104121298A (en) * | 2014-07-14 | 2014-10-29 | 天津天海同步科技股份有限公司 | Integrated sliding block mechanism and synchronizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108730365A (en) | 2018-11-02 |
| DE102018105957A1 (en) | 2018-10-25 |
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Granted publication date: 20211029 |
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