CN101421139A - Piston rod connection - Google Patents
Piston rod connection Download PDFInfo
- Publication number
- CN101421139A CN101421139A CNA2007800129631A CN200780012963A CN101421139A CN 101421139 A CN101421139 A CN 101421139A CN A2007800129631 A CNA2007800129631 A CN A2007800129631A CN 200780012963 A CN200780012963 A CN 200780012963A CN 101421139 A CN101421139 A CN 101421139A
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- piston rod
- connecting device
- rod connecting
- ball section
- subregion
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Abstract
Disclosed is a piston rod connection, especially a connection between a piston rod of a piston of a master cylinder and a pedal. The piston rod is pivotally mounted in a socket of a ball-and-socket joint by means of a ball head at the pedal end while the ball head is axially secured with the aid of a retaining element.
Description
The present invention relates to a kind of piston rod connecting device and in particular for piston rod being fixed on the power-transfer clutch that for example is used for self-propelled vehicle or the pedal of brake actuation.
By DE 195 23 215 B4 known be used for the configuration of the piston of active cylinder, wherein, piston is made of piston skirt sleeve and two the maintenance shells that seamlessly are arranged in the piston skirt sleeve with top, keep shell on the pedal side end of piston skirt sleeve, to have the recess of a ball-and-socket shape, remain in the recess of this ball-and-socket shape to the bulb buckle of piston rod and force closure.Piston rod can be implemented hunting motion by means of bulb by its anchor fitting.
Described a kind of active cylinder among DE 199 60 335 A1, in this active cylinder, piston comprises that also two keep shell, and these keep shell to be seated in the piston skirt sleeve.Keep shell also to form the recess of the segment shape of a bulb that is used to receive piston rod at this.
The structural configuration of above-mentioned solution bothers relatively.In addition, therefore the damping behavior deficiency of these forms of implementation can produce under the impact type load and break.
The pedal side that is fixed on of the piston rod of active cylinder is carried out by means of hinge joining means, and this hinge joining means can make and have not enough durability usually troublesomely.
Task of the present invention is, simple and the with low cost piston rod connecting device of exploitation active cylinder piston on the pedal that for example is used for power-transfer clutch or brake actuation, this piston rod connecting device has simple structure, can easily assemble and dismantle and guarantee high life-span and function.
According to the present invention, this task solves by the feature of first claim.Favourable configuration is by obtaining in the dependent claims.
In the piston rod connecting device of the form of piston rod that especially is active cylinder piston according to the present invention and the connecting device between the pedal, piston rod by bulb swingably at the pedal side bearing in the hinge nest, wherein, bulb is by means of the holding element axial restraint.
Bulb has two ball section zones of working for the first time at this, and these ball section zones have different diameters, wherein, the first ball section area supporting in the hinge nest and holding element rest on the second ball section zone.
The second ball section zone has first overall diameter, and this first overall diameter rests on the interior diameter of hinge nest, and the second ball section zone has second overall diameter, and this second overall diameter is less than the overall diameter in the first ball section zone.
Two ball section zones are preferably configured as hemispherical.
The interconnecting gangway that forms by different diameters to the second ball section zone from the first ball section zone is configured to a stop surface towards the ring-type of the direction sensing of piston rod, and this stop surface can rest on the holding element when piston rod hunting motion or extensional motion.
Available favourable mode is provided with at least one recess in stop surface, and holding element can be rabbeted at least in part in described recess, avoids holding element springing undesirably under axial load thus.
In order to assemble and to dismantle, holding element can open on this degree ground, makes the ball section zone of winning can pass holding element.
Preferred holding element is with the formal construction of cramp frame, this cramp frame is made of two expandable legs, and described leg is made of some subregions respectively and advantageously is configured to mirror image.
Arc in order to constitute, two legs are connected to each other by some other subregions, and these other subregions are made up of with zone bending straight.
Two legs have at least two zones opposite each other, the bending of mirror image ground convex ground, and these zones rest on the second ball section zone in the state that assembles and this second ball section zone of axial restraint.
For this reason, holding element is fixing like this to securely at the pedal side shaft, makes two legs extend through slit opposite each other and can rest on thus on the second ball section zone.
The axial restraint device construction of hinge nest and holding element is in a housing that is arranged on the pedal side.
The subregion of holding element that is configured to cramp frame makes subregion opposite each other extend parallel to each other respectively in this such setting.For position and function reason, the arc subregion of the formation of holding element is with an angle remaining part warpage with respect to leg.This angle at this corresponding to the angle that is arranged in the housing.Thus, this part of holding element can apply the backstop function and itself not stretch from housing at this on piston rod in preassembled state.
By solution according to the present invention, can structurally construct piston rod connecting device surprisingly simply and flexibly.By each size of design holding element and by determining for example material and the thickness of holding element, available simple mode is made and the relevant assembly of loading.Action of the spring by holding element and piston rod according to anchor fitting of the present invention, vibration and load impact obtain damping or elimination.Generally speaking, but the life-span of piston rod connecting device significant prolongation thus.
Simultaneously, assembling and dismounting obtain simplifying and assembly control is guaranteed by using holding element.
Describe the present invention in detail by means of embodiment and accompanying drawing below.Accompanying drawing is represented:
Fig. 1 is the 3-D view of part of the form of the housing 3 of piston rod 1, pedal side and cramp frame 4 in disassembly status,
Fig. 1 a was assemblied in the 3-D view of the cramp frame on the housing before the assembling piston rod,
Fig. 1 b is assemblied in the cramp frame on the housing and is assemblied in the 3-D view of the piston rod in the housing,
Fig. 2 cross section view (according to the longitudinal profile of Fig. 1 a),
The cross section view of Fig. 3 when the assembling piston rod begins,
The cross section view of Fig. 4 when assembling, wherein, this degree of cramp frame ground opens, and the ball section zone of winning can be inserted,
Fig. 5 is according to the longitudinal profile of the piston rod connecting device that assembles of Fig. 1 b,
The longitudinal profile of Fig. 6 piston rod connecting device when the pendulum angle α of piston rod is maximum,
Piston rod connecting device when the tensile force f of Fig. 7 on acting on piston rod is maximum,
Similar view among Fig. 8 and Fig. 7, but have a recess in the face by putting,
The form of implementation flexible program of Fig. 9 cramp frame,
Piston rod, housing and the cramp frame of Figure 10 before assembling,
Figure 11 is installed in the piston rod in the hinge nest of housing, and wherein, piston rod is pressed in the hinge nest and comes pre-locking by a cramp frame that is inserted in this hinge nest,
Figure 12 piston rod is connected on the housing fully with implementing, has the cramp frame that is in its terminal location.
Among Fig. 1 in disassembly status and show whole parts of the form of the housing 3 that is piston rod 1, pedal side and cramp frame 4 with 3-D view.
Piston rod 1 has a bulb 2, and this bulb has 2.1 and one second ball section zones 2.2, a ball section zone.The overall diameter D1 in the first ball section zone is greater than the overall diameter D2 in the second ball section zone 2.2.Interconnecting gangway between two ball sections zone 2.1 and 2.2 is configured to a stop surface 2.3.Two ball sections zone 2.1 becomes hemispherical with 2.2 general arrangement.
Be configured in housing 3 in the pedal that is not shown specifically or on it and have a hinge nest 3.1 that is used to receive the first ball section zone 2.1 of piston rod 1.Longitudinal axis A with respect to housing 3 in housing 3 vertically is processed with two slits opposite each other 3.2, and these slits reach in the recess 3.1 always.The interior diameter d1 of recess is corresponding to the overall diameter D1 in the first ball section zone 2.1.Holding element that is the form of cramp frame 4 is used to set up being connected between the housing 3 of piston rod 1 and pedal side, and this cramp frame is not rabbeted at this.Cramp frame 4 has two expandable legs 5, and these legs are connected to each other by the zone 6 of a warpage.These two legs 5 respectively have crooked zone 5.1, a convex ground, and crooked zone, described convex ground rests in the state that assembles on the second ball section zone 2.2.The diameter of the cross-sectional plane of cramp frame 4 is roughly corresponding to the width in slit 3.2.
In Fig. 1 a, cramp frame 4 is positioned in the groove 3.2 of housing 3 with its leg 5, and the zone 6 of warpage externally is arranged on the housing 3 and limits the insertion of cramp frame 4 thus.Piston rod 1 is also unassembled.
Fig. 1 b shows cramp frame 3 that is assemblied on the housing 3 and the 3-D view that is assemblied in the piston rod 1 in the housing 3.Cramp frame 4 acts on the second ball section zone 2.2 and piston rod 1 is axially fixed in the housing 3.Bulb 2 is axially fixed in the hinge nest 3.1 at the holding element of pedal side by means of the form that is cramp frame 4 thus swingably.
The cross section view of housing when being assemblied on the housing 3 according to Fig. 1 a cramp frame 4 in longitudinal profile has been shown among Fig. 2.Piston rod 1 is not rabbeted.
Fig. 3 shows the cross section view of the housing 3 when piston rod 1 assembling beginning, and Fig. 4 shows the cross section view when assembling, and wherein, cramp frame 4 this degree ground open, and make the first ball section zone 2.1 of piston rod 1 to insert.
Fig. 5 shows the longitudinal profile that has the piston rod connecting device that assembles of housing 3 according to Fig. 1 b.Can see that at this first ball section zone 2.1 is seated in the hinge nest 3.1, cramp frame 4 rests on the second ball section zone 2.2, and thus, bulb 2 is axially fixed in the housing 3.
Fig. 6 shows the longitudinal profile of the piston rod connecting device that has housing 3, and wherein, piston rod 1 tilts with the full swing angle [alpha].Bulb 2 also tilts like this at this, makes the stop surface 2.3 of winning between the 2.1 and second ball section zone 2.2, ball section zone rest on the cramp frame 4 and limits its hunting motion thus.
If act on a very large tensile force f according to Fig. 7 on piston rod 1, then the backstop 2.3 of piston rod 1 by bulb 2 is stretched up to cramp frame 4 and rests on the there.Cramp frame 4 is expansion a little in the case.
Fig. 8 show with Fig. 7 in similar view.But this by put be provided with in the face one around recess, holding element 4 can rabbet at least in part this around recess in and should around recess constitute opposing cramp frame 4 further open backstops.
Another form of implementation of cramp frame 4 has been shown among Fig. 9.This cramp frame 4 is basically that with difference according to the cramp frame 4 of Fig. 1 the zone 6 of warpage is made up of some subregions 6.1,6.2 and 6.3.Another difference is that the free end of its leg 5 bends like this, makes these free ends extend with respect to the 6.1 almost parallel ground, subregion of bending.In addition, know that subregion 6.2 is connected to each other by subregion 6.3 by Fig. 9.Not only subregion 6.1 but also subregion 6.2 preferably extend parallel to each other.Subregion 6.2 with respect to subregion 6.1 with the angle beta warpage.
Show the housing 3 and the fastening spring 4 of piece piston bar 1 to be connected each other, pedal side Figure 10 neutral body.
Can see that from Figure 11 piston rod 1 is connected the preassembled state on the housing 3.Can see that at this hinge nest 3.1 of housing 3 or this housing is prepared to receive piston rod 1 and fix this piston rod subsequently by means of the cramp frame 4 that inserts in this state.Cramp frame 4 forms locking by means of its subregion 6.2 for piston rod 1 on the ball section zone 2.1 of bulb 2 in this position, this locking can surpass by piston rod 1 further is pressed in the hinge nest 3.1.
Piston rod 1 further is pressed into makes the leg 5 of cramp frame 4 outwards open in the housing 3 at this, wherein, in order to receive bulb 2, also open in crooked zone 5.1, convex ground, so that occupy the initial position in crooked zone, these convex ground again in this diameter back after surpassing the diameter D1 of this bulb.Can see also that from this Figure 11 for the subregion 6.1 and 6.2 of the warpage that receives cramp frame 4, housing 3 has a corresponding recess 7.
Figure 12 shows the piston rod connecting device of implementing fully.Can see that at this bulb 2 of piston rod 1 is received by hinge nest 3.1 fully.In order to reach this terminal location, cramp frame 4 also moves to its terminal location from bulb 2 by the pressure of radial effect, wherein, the crooked zone 5.1, convex ground of cramp frame 4 is snapped into 2.2 back, ball section zone, because the diameter in ball section zone 2.2 is less than the diameter D1 (being similar to Fig. 1 b) of bulb 2.In this fitting process, cramp frame 4 this degree leading threads are left axis A to motion, make the subregion 6.3 of this cramp frame rest on the diameter D1 of bulb 2.Because cramp frame 4 is stretched from the breach of housing 3 from now on, so can see for the viewer thus: fitting process finishes and piston rod 1 is fixed in housing 3.
The reference number inventory
1 piston rod, 2.1 (the first) ball section zones
2 bulbs, 2.2 (the second) ball section zones
2.3 stop surface 6.3 subregions
2.3 the subregion of ' recess 6.4 bendings
The subregion of 3 housings, 6.5 bendings
3.1 hinge nest 7 recesses
3.2 slit A longitudinal axis
4 cramp frames/holding element d1 interior diameter
5 leg D1 overall diameters
5.1 the crooked regional D2 overall diameter in convex ground
The regional D3 diameter of the housing of 6 warpages
6.1 subregion α pendulum angle
6.2 subregion β warpage angle
Claims (24)
1. piston rod connecting device, as the piston rod (1) of active cylinder piston and the connecting device between the pedal, wherein, this piston rod (1) by bulb (2) swingably the pedal side bearing in hinge nest (3.1) and this bulb (2) by means of holding element (4) axial restraint.
2. according to the piston rod connecting device of claim 1, it is characterized in that: this bulb (2) has two ball section zones (2.1 of working, 2.2), these ball section zones have different diameter (D1, D2), wherein, the first ball section zone (2.1) is bearing in this hinge nest (3.1) and this holding element (4) rests on the second ball section zone (2.2).
3. according to the piston rod connecting device of claim 1 or 2, it is characterized in that: this second ball section zone (2.2) has the first overall diameter D1, and this first overall diameter rests on the interior diameter d1 of this hinge nest (3.1); This second ball section zone (2.2) has the second overall diameter D2, and this second overall diameter is less than the overall diameter D1 in this first ball section zone (2.1).
4. according to one piston rod connecting device in the claim 1 to 3, it is characterized in that: this first ball section zone (2.1) is configured to hemispherical.
5. according to one piston rod connecting device in the claim 1 to 4, it is characterized in that: this second ball section zone (2.2) is configured to hemispherical.
6. according to one piston rod connecting device in the claim 2 to 5, it is characterized in that: the interconnecting gangway from this first ball section zone (2.1) to this second ball section zone (2.2) is configured to the stop surface of a ring-type of pointing to towards the direction of this piston rod (1).
7. according to the piston rod connecting device of claim 6, it is characterized in that: this stop surface can rest on this holding element (4) when (1) hunting motion of this piston rod or extensional motion.
8. according to the piston rod connecting device of claim 7, it is characterized in that: this stop surface has at least one recess (2.3 ＇), and this holding element (4) can be rabbeted in described recess at least in part.
9. according to one piston rod connecting device in the claim 1 to 8, it is characterized in that: this holding element (4) can open like this, makes this first ball section zone (2.1) can pass this holding element (4).
10. according to the piston rod connecting device of claim 9, it is characterized in that: this holding element (4) is with the formal construction of cramp frame.
11. piston rod connecting device according to claim 9 or 10, it is characterized in that: this cramp frame (4) is made of two expandable legs (5), described leg is made up of the zone (6) of straight at least in part zone (5.1) and warpage, wherein, this zone (6) is made of some subregions (6.1,6.2 and 6.3).
12. the piston rod connecting device according to claim 11 is characterized in that: straight subregion (6.1) and (6.2) are connected to each other by crooked subregion (6.4) and these two straight subregions (6.1) and (6.2) extend parallel to each other respectively basically.
13. the piston rod connecting device according to claim 11 and 12 is characterized in that: straight subregion (6.3) respectively are provided with curve (6.5) in end side, and described straight subregion (6.2) is connected with described straight subregion (6.3) by described curve.
14. the piston rod connecting device according to claim 11 is characterized in that: this two legs (5) are configured to mirror image.
15. according to one piston rod connecting device in claim 11 or 14, it is characterized in that: convex ground in these subregions (5.1) is crooked and rest in the state that assembles on this second ball section zone (2.2).
16. according to one piston rod connecting device in the claim 1 to 15, it is characterized in that: this holding element (4) is fixing to securely at the pedal side shaft.
17. according to one piston rod connecting device in the claim 11 to 16, it is characterized in that: these two legs (5) extend through slit opposite each other.
18. according to one piston rod connecting device in the claim 1 to 17, it is characterized in that: the axial restraint device construction of this hinge nest (3.1) and this holding element (4) is in a housing (3) that is arranged on the pedal side.
19. the piston rod connecting device according to claim 11 and 13 is characterized in that: extend with respect to described subregion (6.1) substantially parallelly described subregion (6.3).
20. the piston rod connecting device according to claim 11 is characterized in that: described subregion (6.2) with angle beta with respect to described subregion (6.1) warpage.
21. the piston rod connecting device according to claim 11 is characterized in that: the end of the leg (5) of this cramp frame (4) bends like this, makes these ends extend with respect to described subregion (6.1) substantially parallelly.
22. piston rod connecting device according to claim 18 and 20, it is characterized in that: this housing (3) has a breach (7), the width of this breach equals the width of this cramp frame (4) at least and the side towards described subregion (6.2) of this breach has an inclined-plane, and this inclined-plane is corresponding with the angle beta of this cramp frame (4).
23. the piston rod connecting device according to claim 14 and 15 is characterized in that: the radius of the curve in the zone (5.1) that these convex ground are crooked is in the plane of longitudinal axis A.
24. the piston rod connecting device according to claim 23 is characterized in that: from this longitudinal axis A at the length of the above leg of direction (5) of (6.1) diameter D3 greater than this housing (3) towards the subregion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006017099.7 | 2006-04-10 | ||
| DE102006017099 | 2006-04-10 | ||
| DE102006045856.7 | 2006-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101421139A true CN101421139A (en) | 2009-04-29 |
Family
ID=40631409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800129631A Pending CN101421139A (en) | 2006-04-10 | 2007-03-22 | Piston rod connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101421139A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107042814A (en) * | 2015-12-24 | 2017-08-15 | 日本奥托立夫日信制动器系统株式会社 | Input unit |
| CN111059142A (en) * | 2018-10-16 | 2020-04-24 | 施耐德博士塑料工厂有限公司 | Bearing arrangement, ball joint bearing and mechanism with a bearing arrangement and at least one ball joint bearing |
| DE102022107514A1 (en) | 2022-03-30 | 2023-10-05 | Schaeffler Technologies AG & Co. KG | Hand lever for an actuating device for manually actuating a braking device of a vehicle, actuating device with a hand lever and method for assembling the hand lever |
-
2007
- 2007-03-22 CN CNA2007800129631A patent/CN101421139A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107042814A (en) * | 2015-12-24 | 2017-08-15 | 日本奥托立夫日信制动器系统株式会社 | Input unit |
| CN111059142A (en) * | 2018-10-16 | 2020-04-24 | 施耐德博士塑料工厂有限公司 | Bearing arrangement, ball joint bearing and mechanism with a bearing arrangement and at least one ball joint bearing |
| CN111059142B (en) * | 2018-10-16 | 2022-08-02 | 施耐德博士塑料工厂有限公司 | Bearing arrangement, ball joint bearing and arrangement comprising a bearing arrangement and at least one ball joint bearing |
| DE102022107514A1 (en) | 2022-03-30 | 2023-10-05 | Schaeffler Technologies AG & Co. KG | Hand lever for an actuating device for manually actuating a braking device of a vehicle, actuating device with a hand lever and method for assembling the hand lever |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20090429 |