Source: https://patents.google.com/patent/DE102006062894B4/en
Timestamp: 2019-11-12 00:01:15
Document Index: 749130690

Matched Legal Cases: ['art) 14', 'art 24', 'art 25', 'art) 14', 'art 30', 'art 32', 'art 30', 'art 30', 'art 32', 'art 24', 'art 24', 'art 25', 'art 25', 'art 25', 'art 24', 'art 24', 'art 25', 'art 24', 'art 24', 'art 25', 'art 25', 'art 25', 'art 24', 'art 24', 'art 32', 'art 24', 'art 24', 'art 138', 'art 140', 'art 138', 'art 24', 'art 24', 'art 138', 'art 156', 'arts 156', 'arts 156', 'art 156', 'arts 156', 'art 156']

DE102006062894B4 - Protective cap - Google Patents
DE102006062894B4
DE102006062894B4 DE102006062894A DE102006062894A DE102006062894B4 DE 102006062894 B4 DE102006062894 B4 DE 102006062894B4 DE 102006062894 A DE102006062894 A DE 102006062894A DE 102006062894 A DE102006062894 A DE 102006062894A DE 102006062894 B4 DE102006062894 B4 DE 102006062894B4
DE102006062894A
Stephen H. Gunderson
2005-06-30 Priority to US11/174,262 priority Critical
2005-06-30 Priority to US11/174,262 priority patent/US7467813B2/en
2006-06-29 Application filed by TI Group Automotive Systems LLC filed Critical TI Group Automotive Systems LLC
2011-12-15 Application granted granted Critical
2011-12-15 Publication of DE102006062894B4 publication Critical patent/DE102006062894B4/en
A cap is described as an assembly for a quick connector, the assembly comprising: a protective cap having a hollow sleeve, a ring member spaced from the sleeve, at least one strut for connecting the sleeve to the ring, and at least one of the sleeve outgoing security clip. Within the at least one strut and the at least one securing clip, a sealing component is arranged in the radial direction. Further, the assembly includes a retaining member including a ring member portion, wherein the annular portion of the retaining member is releasably connected to the protective cap by the at least one securing clip and the at least one securing clip is configured to be bent to release the retaining member from the protective cap ,
The present invention relates to a protective cap as an assembly for a quick coupling for releasably connecting a connector portion formed at the end of a pipe.
In the automotive industry and other fields, a quick coupling is used for fluid coupling between two components or conduits as a type of clutch assembly, the quick release generally including a male member that is received and retained within a coupling body (female). The use of a quick coupling is advantageous in that a dense and secure fluid line can be made with an extremely low cost and time.
To secure the plug within the coupling body, a retaining element is used. One type of retaining element includes a plurality of locking members having locking arms extending between a radially protruding collar formed on the male member and an annular surface defined in the coupling body. Characterized in that the locking arms abut against the annular surface of the coupling body at one end and against the collar of the plug component at the other end, it is prevented that the plug component can be pulled out of the coupling body. This type of retaining element is widely used in the art and has been proven in many fluid line applications. Examples of this are in the U.S. Patent 5,161,832 ; 5 324 082 ; 5,626,371 and 5,628,531 described.
Retaining elements of the type mentioned above normally include a body in the form of a ring member, which forms part of it by injection molding together with the locking components. The mounting of this type of retaining element normally takes place in that the retaining element is introduced into a bore defined in the coupling body. During the insertion step, the locking members and / or the locking arms must be resiliently bent radially inwardly toward the body of the retaining member for the locking members to fit through the opening defining the entrance into the bore of the coupling body. Furthermore, it is off DE 695 21 428 T2 a quick coupling for making a connection in a fluid line system known. This quick coupling comprises a bushing body in which a bore for receiving a tube is arranged. In this hole, a retaining arrangement for the pipe is arranged. The restraint arrangement consists of a main retaining body with two pressure inserts arranged thereon. A tube is now secured in the retaining body by a sleeve is arranged between two each surrounding the tube, which is secured via a male member in the retaining arrangement in the retaining housing.
The advancement of this type of quick connector to higher pressure applications has resulted in more robust configurations of the retention member which make it difficult to insert the retention member into the bore of the coupling body. These difficulties still increase when the retaining element is mounted on the associated plug component or its tube prior to insertion into the bore of the coupling body, a technique which is today common in some applications of quick-release couplings. Such an approach is to allow the use of quick couplings in applications where the inner part of the coupling body is in the component of a fluid system, for example in a power steering pump, a brake cylinder or the component of an air conditioning system.
In the development of quick couplings for such applications has been found that due to the limited annular space between the tubular member and the entrance opening into the bore of the coupling body, the radial movement of the locking members is sometimes hindered by the contact between adjacent locking members. Applying too much force can damage the locking components in such cases and endanger the integrity of the fuse and thus the resulting fluid connection. This has led to the realization that a quick-release assembly is needed with a fuse configuration that can be safely inserted into the associated coupling body and at the same time mounted on the associated connector component. In such a retaining member, the locking members and / or locking arms can be bent far enough elastically inward during insertion of the retaining member and the plug into the coupling body in the radial direction and pass through the entry opening without jeopardizing the structural integrity of the locking components.
1 Figure 11 is an exploded view of a fluid coupling assembly embodying the principles of the present invention;
2 is a side cross-sectional view of the coupling body along the section line 2-2 of 1 ;
3 is a perspective view of the retaining element of in 1 illustrated coupling assembly;
4 is a side view of the in 3 S retaining element shown;
5 is a cross-sectional view of the retaining element taken along section line 5-5 of 4 ;
6 is a cross-sectional view of the retaining element taken along section line 6-6 of 4 ;
7 is a partially cross-sectional side view of the coupling assembly of 1 in semi-assembled condition;
8th is a side cross-sectional view of in 1 illustrated fluid coupling in the fully assembled state;
9 Figure 11 is an exploded view of a protective cap with an associated gasket, retainer and plug component to illustrate the principles of the present invention;
10 is a side view of in 9 shown protective cap;
11 is a front view of the in 10 shown protective cap;
12 is a top view of the in 10 shown protective cap;
13 is a cross-sectional view of the protective cap along the section line 13-13 of 10 ;
14 is a side cross-sectional view of the coupling cap of 9 , which forms a preassembled assembly with seal and retaining element;
15 is a cross-sectional view of the in 14 illustrated assembly of the coupling cap, which is mounted in part on a plug component of a coupling assembly;
16 is a cross-sectional view of the in 14 illustrated subassembly of the coupling cap, which is completely attached to a plug component of a coupling assembly;
17 is a cross-sectional view of the assembly of the coupling cap of 9 that represents an abnormal condition.
1 shows a fluid coupling assembly 10 to illustrate the present invention. The fluid coupling comprises a plug component 12 , a coupling body (female part) 14 , a retaining element 16 for securing the plug component 12 on the coupling body 14 and a sealing component 18 ,
The plug component 12 is a hollow, rigid tube 20 with a free end 21 , The plug component is part of a fluid line system. In connection with the plug component 12 is under the term "forward" in the direction of the free end 21 "And the term" backwards "" from the free end 21 away ".
The plug component 12 includes a radially enlarged annular collar 22 with one at a distance from the free end 21 of the pipe 20 formed to the rear facing surface 23 , The plug component 12 further includes a through the outer surface of the tube 20 between the collar 22 and the free end 21 defined cylindrical part 24 , A likewise through the outer surface of the pipe 20 defined cylindrical part 25 also sits behind the collar 22 continued. The cylindrical member may be coated with nylon or other protective coating of a polymer. The coating is from the free end 21 to the back surface 23 of the collar 22 removed from the cylindrical part.
The coupling body (female part) 14 may be a component of a steering servo system according to the figure. Other options include the component of a brake system of a transmission oil cooling system, a forced air heating or air conditioning system, or any other fluid system in which a sealed but detachable fluid connection is desired.
Out 2 is clearly seen that the coupling body 14 an axial bore 26 defined, extending from an entrance opening 28 at the interface between the hole 26 and the flat wall 34 of the body 12 extends in the axial direction. The hole 26 is to a midline 27 symmetrical. The hole 26 is in one part 30 for receiving a fuse and a sealing member and a tubular guide member 32 assigned. The coaxial through hole 33 sits down from the tubular guide part 32 in the interior of the coupling body 14 continued.
In connection with the coupling body 14 is under the term "forward (from)""from the entrance opening 28 in the direction of the passage opening 33 "And the term" backwards "" from the passage opening 33 in the direction of the entrance opening 28 " to understand. The term "inside" or "inward" means "in the radial direction to the centerline 26 "And the term" outside "or" outward "means" in the radial direction from the centerline 27 path".
The entrance opening 28 is cylindrical surface with respect to the axis 36 defined by which the retaining element 16 and the connector component 12 must be guided when they are in the hole 26 be used. A chamfer 40 cuts the plane wall 36 of the coupling body 14 and the cylinder surface extending in the axial direction 36 , The chamfer facilitates the insertion of the retaining element 16 in the coupling body 14 , In the forward direction after the axially extending cylindrical surface 36 is located inside the receiving part 30 the bore 26 for the retaining element and the sealing component, an annular contact surface extending in the radial direction 38 , The area 38 serves as a contact surface for locking the retaining element within the bore 26 , in turn, the connector component 12 is releasably locked.
In the forward direction after the axially extending cylindrical surface 36 follows a cylindrical surface 42 with a larger diameter and then a chamfer 43 up to a cylindrical surface 44 whose diameter is about the same size as the diameter of the axial cylindrical surface 36 is. The cylindrical surface 44 terminates at a radially inwardly facing annular step 45 followed by a beveled surface 46 to which a cylindrical sealing surface 48 connects, which up to a pointing in the radial direction annular surface 50 enough. The radially facing annular surface 38 , the cylinder surface 42 with a larger diameter, the chamfer 43 , the cylinder surface 44 , the radially inwardly facing annular step 45 , the beveled surface 46 , the cylindrical sealing surface 48 and the radially facing annular surface 50 define the part 30 the axial bore 26 for receiving the retaining element and the sealing component.
From the annular area 50 off is a cylindrical surface towards the axis 52 that the leadership part 32 the axial bore 26 defined for the plug component. The cylinder surface is dimensioned to be the outer cylinder part 24 of the plug component 12 closely surrounds and the plug component 12 in the hole 26 gives a coaxial leadership.
The retention component 16 is in the 3 to 6 shown. The retaining element 16 generally consists of an annular component in the bore 26 in the recording section 32 is housed coaxially for the retaining element and the sealing member. The retaining element includes a body in the form of a ring member 54 with a circular face facing forward 56 and a rear facing circular surface 58 , The terms "forward (front)" and "rearward (rear)" mean in connection with the retaining element 16 the same as in connection with the coupling body 14 , That is, when the retaining element 16 into the hole 26 of the coupling body 14 has been plugged, shows the forward facing surface 56 in the direction of the passage opening 33 and the backward facing surface 58 in the direction of the entrance opening 28 , Likewise, the terms "inside" and "outside" mean the same as in connection with the coupling body 14 , the hole 26 and the midline 27 ,
The ring 54 of the retaining element 16 has an outer cylindrical surface 55 which is dimensioned to fit into the cylinder surface 44 the bore 26 fits. Furthermore, the ring points 54 a chamfer 57 on, on the chamfer 46 in the hole 26 meets when the retaining element in the hole 26 is plugged.
From the ring 54 from extends in the axial direction forward an annular extension 62 , The outer cylindrical surface 63 the extension 62 is dimensioned so that it is close to the cylindrical sealing surface 48 and is guided by it. The extension 62 has a radially facing annular surface in the forward direction 64 on. If the retaining element 16 into the hole 26 of the coupling body 14 is introduced, the annular extension 62 taken up by the part passing through the cylindrical sealing surface 48 is defined and presents together with the seal 18 a liquid-tight seal ago.
In the ring 54 and in the extension 62 is a hole 60 Are defined. The bore is dimensioned to be the cylindrical part 24 of the pipe 20 surrounds which the plug component 12 Are defined.
The illustrated retaining element 16 includes two first locking components 66 and two second locking members 68 , The locking components 66 and the locking components 68 extend from the ring component 54 off in the axial direction to the rear. The locking components 66 and the locking components 68 differ only by the fact that the locking components 68 Deflection surfaces included in the discussed in detail below slants 116 are defined. Each same locking components 66 and the same locking components 68 lie diametrically opposite each other and thus define a system of changing locking components 66 and locking components 68 , The reasons for the change between the locking components 66 and the locking components 68 with the slope 116 are set out below.
The locking components 66 and 68 are lever-like extensions of the ring 54 which extend in the axial direction to the rear. Between each of the adjacent locking components 66 respectively. 68 is an axially extending long slot 72 Are defined. The slots 72 take the locking components 66 and 68 on when doing this while inserting into the hole 26 of the coupling body 14 be bent inwards elastically. The first sloping outer surface 84 and the second oblique outer surface 86 define a generally conical interrupted outer periphery of the locking arms 80 coming from the front bearing surface 82 to the rear contact surface 88 increases.
Each locking component 66 and 68 includes two relatively thin axially extending longitudinal struts 74 extending from the rearward facing circular surface 58 of the ring component 54 out to the rear. These struts bend elastically to allow the locking components 66 and 68 in the radial direction can move inward when the retaining element 16 on the plug component 12 is pushed.
The aspiration 74 each locking component 66 and 68 are with a rear connecting bar 76 connected, in the axial direction, a rear end 70 defines each locking component. The connection bar 76 have an outer surface whose diameter is about as large as the diameter of the axial cylindrical surface 36 the bore 26 , The connecting beams also have a curved inner surface 78 on, whose diameter is larger than the diameter of the bore 60 of the retaining element, so that a distance to the cylindrical part 25 of the pipe 20 remains and the connection bars 76 during assembly in the direction of the surface 25 can be moved radially inward.
The two struts 74 , the ring 54 and the backward connecting bar 76 each locking component 66 and 68 define a window 79 , Furthermore, each locking member includes 66 and 68 a duckbill-shaped locking arm 80 who is in the window 79 from the connection bar 76 between the two struts 74 extends forwards in the axial direction. The duckbill-shaped locking arms 80 are through slots 77 from the struts 74 separated. Thus, each locking arm 80 at the connection bar 76 with the corresponding locking component 66 or 68 connected. By this kind of attachment, the locking arms can 80 when inserting the fuse 14 through the entrance opening 28 at the junction with the rear facing connecting arms 76 move or bend when placed on the connector component 12 be plugged. The relatively long and thin struts 74 also ensure the necessary flexibility for insertion through the inlet opening 28 ,
Every locking arm 80 has at its front end a front bearing surface 82 and a first oblique outer surface 84 and a second oblique outer surface 86 on, leading to a rear bearing surface 88 to lead. The rear contact surface 88 lies in the radial direction outside the junction of each locking arm 80 with a rear connecting bar 76 ,
The locking arms 80 are configured so that when inserting the retaining element 16 and the connector component 12 in the coupling body 14 the front contact surface 82 each locking arm 80 the backward facing surface 23 of the collar 22 is opposite or at this rests and that the rear contact surface 88 each connecting arm 80 the circular ring surface 38 in the hole 26 of the coupling body 14 is opposite or adjacent to this. Thus lock the locking arms 80 the plug component 12 detachable in the coupling body 14 , An inner cylindrical surface 94 each locking arm 80 extends from the front bearing surface 82 out to the back. The diameter of this cylindrical surface is about the same size as the diameter of the cylindrical part 25 of the pipe 20 , and the cylindrical surface lies on the outer cylindrical part 25 of the pipe 20 behind the collar 22 on.
Due to the size relationships between the diameter of the collar 22 on the plug component 20 and the annular surface 38 in the coupling body 14 defines each locking arm 80 a stepped cone shape from the rear end of the inner cylindrical surface 94 each locking arm 80 to the inner surface 78 of the associated connection bar 76 gets bigger. This shape defines a wedge or gradient surface 92 ,
The wedge or slope surfaces 92 meet when attaching the retaining element on the connector component 12 on the collar 22 of the plug component 12 and cause a radial movement of the locking arms 80 outward, hence the collar 22 when inserted at a location in front of the front bearing surface 82 and behind the rearward-facing circular surface 58 of the ring 54 to come to rest.
The first sloping outer surface 84 and the second inclined outer surface of each locking arm 80 serve as a deflection and meet during insertion of the retaining element 16 into the hole 26 of the coupling body 14 on the chamfer 40 and the cylinder surface extending in the axial direction 36 at the entrance opening 28 , In the process, the components become 66 and 68 sufficiently far inward or moved pressed so that the retaining element 16 through the entrance opening 28 can get. The connection of the locking arms 80 with the connection bars 76 and the struts running along the axis 74 provide the necessary flexibility, so that the retaining element through the entrance opening 28 passing through the cylinder surface 36 is defined, can get, if it is on the plug component 12 is attached.
The two locking components 68 also contain bevels 116 extending from the radial outer surface of each strut 74 extend outward in the radial direction. The slopes 116 define a sloping deflection surface 117 extending from a front end 118 to the rear end 120 extends. The sloping surface extends from the front end 118 to the far end 120 in the radial direction to the outside. The front end 118 lies in the axial direction in front of the front bearing surface 82 the duckbill-shaped locking arm 80 , Thus, the deflection surfaces are located 117 in the axial direction in front of the first inclined outer surface 84 the locking arms 80 , The figure shows that in the illustrated embodiment, the angle of the deflection surface 117 the sloping 116 against a horizontal line such as the center line 27 not as steep as the angle of the first tapered outer surface 82 the locking arms 80 , The angle of the deflection surface 117 the sloping 116 For example, it may be 15 to 18 degrees from a horizontal line. The angle of the first tapered outer surfaces 82 can be 35 to 40 degrees and the angle of the second bevelled outer surfaces 84 can be 18 to 20 degrees.
When inserting the retaining element 16 in the entrance opening 28 bump in front of the first bevelled outer surface 84 or the second tapered outer surface 86 first the surfaces 117 on the slopes 116 against the chamfer 40 , Through this contact are in front of the locking components 66 first the locking components 68 moved inward in the radial direction. Upon further insertion, then contact the first tapered outer surface of the locking arms 80 the locking components 66 the chamfer 40 , and the locking components 66 start to move inwards. Upon further insertion of the retaining element 16 through the entrance opening 28 touch the first tapered outer surfaces 82 the two locking components 66 and 68 the cylindrical surface extending in the axial direction 36 , Then, all the locking members are pushed inward, and after making contact with the second tapered outer surfaces 84 the locking arms 80 the insertion is finished.
The retaining element 16 is preferably made by injection molding of a polymer material having the necessary strength and elasticity. A suitable polymer is the polyetheretherketone (PEEK). One such material is Victrex PEEK ™ 450G from Victrex USA, Greenville, South Carolina. A retaining element made by injection molding of this material has the necessary strength to keep the fluid coupling intact under pressure. It also has the necessary strength to install one on the connector component 12 applied retaining element 16 into the hole 26 of the coupling body 14 so that the retaining element is not damaged during assembly.
The seal 18 consists of an elastomeric O-ring, which is responsible for the fluid-tight connection between the cylindrical sealing surface 48 and the cylindrical part 24 of the plug component 12 provides. The outer diameter of the O-ring 18 is slightly larger than the diameter of the cylindrical sealing surface 48 , and the inner diameter of the O-ring 18 is slightly smaller than the diameter of the cylindrical part 24 of the plug component 12 , When the fluid system is under operating pressure, the O-ring creates a fluid-tight seal between these surfaces and the front annular surface 64 the retaining element 16 ,
It is advantageous if the quick coupling according to the present invention, the assembly of the retaining element 16 , the seal 18 and the connector component 12 allowed in the coupling body to a preassembled unit. This feature is particularly advantageous in those applications where the shape of the coupling body is formed in a component of a fluid system. Typically, the tubing bundles and associated coupling components come from one source and the system components from another source. Considerable time and cost savings can be achieved if the system components are already installed in the unit of which they are a part, and the piping of the tubing bundles is then connected to the component to complete the fluid line. This approach is desirable, for example, in the assembly of motor vehicles. In this type of arrangement eliminates the need for a separate coupling body component, which bore 26 defined between this separate coupling body component and the fluid system component 16 For example, a power steering pump or the like, an additional fluid seal would be required.
According to the present invention, the plug component 12 , the retaining element 16 and the seal 18 assembled into an assembly that later into the hole 26 one Fluid component is introduced, which is the coupling body 14 Are defined. This approach is particularly advantageous when the pipe 20 is provided as part of the fluid system by a supplier who is not the manufacturer or supplier of the coupling body 14 defining component, and the final assembly in turn takes place at a different location. Of course, the retaining element 16 the present invention and the associated O-ring seal 18 Benefits in applications where they are first installed in a bore of a coupling body component. In this respect, the extension allow 62 of the retaining element 16 and their interaction with the O-ring seal 18 in the hole 26 regardless of the chosen assembly order, a powerful arrangement for the construction of a liquid-tight seal between the coupling body 14 and the plug component 12 ,
In the manufacture of the assembly, the retaining element 16 so on the plug component 12 attached that collar 22 of the pipe 20 between the front bearing surface 82 the locking arms 80 and the rear facing surface 58 of the ring 54 located. The contact of the collar 22 of the plug component 12 with the inner wedge surfaces 92 the locking arms 80 the locking components 66 and 68 causes the arms are spread in the radial direction to the outside. This elastic movement is due to the bending of the elongated struts 74 and the elasticity of the securing material allows.
As soon as the collar 22 of the plug component 12 in the space between the front contact surfaces 82 the poor 80 and the rear facing surface 58 of the ring 54 of the retaining element 16 is located, snap the locking arms 80 in the radial direction inwards. In this position is the collar 22 of the plug component 12 in between and lies on the back facing surface 58 of the ring 54 and at the front contact surfaces 82 the poor 80 at. The cylindrical surfaces 94 lie close to the cylindrical part 25 of the pipe 20 ,
Then the seal 18 in the form of an O-ring in the immediate vicinity of the circular annular surface 64 the annular extension 62 of the retaining element 16 on the cylindrical part 24 of the pipe 20 applied and so completed the assembly.
The from the plug component 12 , the retaining element 16 and the O-ring 18 existing assembly is connected to the coupling body 14 connected to produce a liquid-tight and secure coupling. When inserting the connector component 12 , the O-ring 18 and the retaining element 16 in the coupling body 14 All elements must pass through the entrance opening 28 pass through the cylinder surface 36 is defined. These elements must fit through the annular space that passes through the cylindrical part 24 of the pipe 20 and the cylindrical surface 36 the bore 26 is defined.
7 shows that first the baffles 117 the sloping 116 the locking components 68 first the chamfer 40 touch. The oblique deflecting surfaces 117 the sloping 116 the locking components 68 touch the chamfer 40 in front of the first sloping outer surfaces 84 on the lock arms 80 the locking components 66 , First, the locking components 68 opposite the ring 54 pressed inward in the radial direction while the locking members 66 are pressed inward in the radial direction after the first inclined outer surface 84 the locking components 66 with the chamfer 40 comes into contact. This will, starting with the locking components 68 , the locking components 68 and 66 pressed inwards. As a result, the rear connecting beams move first 76 the locking arms 68 in the radial direction inwards, before the rear connecting beams 76 the locking components 66 similarly move inwards.
Throughout the introduction process, the inner cylindrical surfaces are located 94 the locking arms 80 on the cylindrical part 25 of the pipe 22 at. The contact of the surfaces 117 the sloping 116 and the sloping outer surfaces 84 and 86 the locking arms 80 causes the retaining elements to be twisted or bent so that the rear connecting beams 76 inside on the pipe 20 to move and the locking components 66 and 68 pass through the entrance opening through the cylinder surface 36 and the cylindrical part 25 of the pipe 20 of the plug component 12 is defined. It is conceivable that the retaining element 16 is bent several times in its interior. It is also conceivable that the locking arms 80 opposite the rear connecting beams 76 bend to a movement of the rear connecting beams 76 towards the pipe 20 to enable. When performing this movement, the locking arms pivot 80 around the contact point of the inner cylindrical surfaces 94 on the cylindrical part 25 of the pipe 20 , It is also conceivable that also the struts 74 vorverbiegen.
If the connector component 12 , the retaining element 16 and the O-ring 18 completely in the coupling body 14 are inserted, the locking components spring 66 and 68 in the radial outward direction, until the outer surfaces of the rear connecting beams 76 close to the inner cylindrical surface 36 which are the entrance opening 28 Are defined.
8th shows the fully inserted coupling, in which the retaining element 16 in the radial and axial direction in the coupling body 14 is included. The cylindrical extension 62 of the retaining element 16 is from the cylindrical sealing surface 48 enclosed to the retaining element 16 within the coupling body 14 to lead in the radial direction.
The cylindrical surface 55 of the ring component 54 is inside the cylinder surface 44 the bore 26 wherein the radially inwardly facing annular step 45 on the forward-facing annular surface 56 of the ring 54 is applied. Through this contact, the further forward movement of the at the annular surface 38 adjacent rear contact surfaces 88 the locking components 66 and 68 and the backward movement of the retaining element 16 limited.
As well as the retaining element 16 are also the O-ring 18 and the connector component 12 in the hole 26 of the coupling body 14 locked in.
The cylindrical part 24 of Steckerbanteils 12 is located inside the inner cylindrical surface 60 of the ring 54 and the extension 62 , Because of the cylindrical part 24 of the pipe 20 narrow of the cylindrical surface 52 the bore 26 surrounded, which is the guide part 32 defines, becomes the plug component 12 in the hole 26 guided.
Due to the fact that the circular ring surface pointing to the rear 58 of the ring 54 on the front surface of the collar 22 is applied, the further forward movement of the plug component 12 prevented in the hole. Because of the back surface 23 of the collar 22 at the front contact surfaces 82 the locking arms 80 is applied, the further backward movement of the plug component 12 prevented. Thus, the connector component 12 both in the radial and in the axial direction in the fuse 16 as well as in the hole 26 of the coupling body 14 locked in.
When installed, the O-ring is located 18 in the room, through the forward annular surface 64 the annular extension 62 , the circular ring surface 50 the axial bore 26 , the cylindrical part 24 of the plug component 12 and the cylindrical sealing surface 48 the axial bore 26 is defined. Thus, the O-ring seal is located on the annular surface 64 the annular extension 62 of the ring 54 at. The outer diameter of the O-ring 18 is chosen slightly larger than the diameter of the cylindrical sealing surface 48 , and the inner diameter is chosen slightly smaller than the cylindrical surface 24 of the pipe 20 , As a result, the O-ring 18 in the radial direction between the plug component 12 and the cylindrical sealing surface 48 pressed together. When the fluid system is pressurized under operating conditions, the O-ring becomes against the front annular surface 64 the annular extension 62 pressed and this in turn pushes the retaining element to the rear. The fluid pressure in the axial direction on the O-ring 18 acting load is through the rear contact surfaces 88 the locking arms 80 pointing to the circular ring surface 38 in the hole 26 acting on the coupling body 14 transfer. These forces bring the O-ring in sealing contact with the cylindrical sealing surface 48 , the cylindrical part 24 of the pipe 20 and the front annular surface 64 of the retaining element 16 and thus create a liquid-tight seal.
While the above illustrative embodiment in the radial direction of the struts 74 the locking components 68 outstanding slopes 116 used the baffles 117 Define to ensure that the locking components 68 bending in the radial direction inwards rather than the locking components 66 The scope of the present invention also encompasses the use of other forms of securing which allow for timed successive movements of the locking components. For example, it is conceivable that only one locking member 68 with slopes 116 Is provided. Other possible modifications are a skew 116 only on a strut 74 each locking component 68 to install. Another example of an alternative design of the retaining element 16 It consists of the first oblique outer surface 84 the locking components 68 in front of the first sloping outer surfaces 84 the locking arms 80 the locking components 66 to arrange. In this approach, the first inclined surfaces would be located at the front 84 the locking components 68 serve as the first deflection and also temporally successive movement of the rear connecting beams 76 the locking components 68 in front of the rear connecting beams 76 the locking components 66 effect in the radial direction inwards.
The 9 to 17 illustrate another aspect of the present invention. One over the retaining element 16 and the O-ring 18 inverted protective cap 132 should protect these components during transport for installation at another location. 9 shows an assembly in the form of a coupling cap 130 holding a the retaining element 16 and the O-ring 18 surrounding protective cap 132 includes. The pipe end 12 , the retaining element 16 and the sealing component 18 are already above in connection with the 1 to 8th been described.
The protective cap 132 will be in the 10 to 13 shown. The cap is injection molded from a polymeric material such as nylon, high density polyethylene or other suitable material. The protective cap 132 is generally annular and includes a hollow sleeve 134 with a closed front end 135 and a ring component 136 with a forward tapered part 138 and one after the rear cylindrical part 140 located at a distance behind the sleeve 134 are located. Two diametrically opposed struts 152 connect the rear end of the sleeve 134 with the narrow end of the tapered part 138 of the ring 136 ,
The sleeve 134 and the ring component 136 lie with respect to the central axis 137 coaxial with each other. The hollow sleeve 134 defines an inner bore 142 with a diameter slightly larger than the diameter of the cylindrical part 24 of the pipe 20 of the plug component 12 is. The diameter is chosen so that he the pipe end 21 and a part of the cylindrical part 24 of the pipe 20 picks up when the assembly 130 on a plug component 12 is put on.
The ring 136 the protective cap 132 defines one from an entrance opening 150 from extending through hole 148 , If the retaining element 16 and the O-ring 18 in the cap 132 are housed, the ring surrounds 136 generally the locking components 66 and 68 , As explained below, the inner cylindrical surface is 144 of the ring 136 sufficiently dimensioned, so that a movement of the locking components 66 and 68 in the radial outward direction is possible and the collar 22 when putting on the protective cap 132 , the O-ring 18 and the retaining element 16 on the plug component 12 fits through. The inner tapered surface 146 of the cone-shaped part 138 is sized to fit the tapered outer circumference of the locking arms 80 the locking components 66 closely surrounding, by the first oblique outer surface 84 and the second oblique outer surface 86 each locking arm 80 is defined. The following explains how the inner conical surface 146 in this position the movement of the locking components 66 and 68 opposite the ring 54 of the retaining element body in the radially outward direction.
Two between the struts 152 diametrically opposed securing clips 154 extend from the axially rear end of the sleeve 134 in the radial direction to the outside. Every securing clip 154 includes a control 158 that with the rear end of the sleeve 134 over a tapered pin part 156 connected, which is a bending of the securing clip 154 opposite the rest of the protective cap 132 allows. Every securing clip 154 has a front surface 162 and a back surface 164 on.
From the back surface 164 each actuator 158 protrudes in the axial direction to the rear of a hook 160 out. The hook 160 tapers from a broad base at its junction with the surface 164 up to a radial end surface 165 at its free end. The hooks 160 should be a backup 16 detachable with the protective cap 132 connect.
Every hook 160 includes a tapered contact surface 166 coming from the radial end face 165 to an inwardly facing axial surface 167 enough. The tapered surface 166 points to the surface 167 a uniform curvature, which is the insertion of the O-ring 18 in through the inwardly facing surfaces of the hook 160 and through the struts 152 facilitated space. The tapered surface 166 every hook 160 can when inserting the retaining element 16 in the protective cap on the chamfer 57 of the ring 54 of the retaining element 16 nudge. This will be the catch 160 forced so to the narrow tapered spigot parts 156 to bend or tilt that ring 54 of the retaining element 16 to lie between the hooks.
The distance between the axial surface 167 each hook and the inward facing axial surface 167 the other hook 160 is smaller than the outer diameter of the outer cylindrical surface 55 of the ring component 54 of the retaining element 16 , Every hook 160 includes in front of the surface 167 one after the pointing radial bearing surface 168 extending to an axially extending surface 169 enough. The distance between the axially extending surfaces 169 every hook 160 is greater than the diameter of the outer cylindrical surface 55 of the ring component 54 of the retaining element 16 , The size of the hook is sized to fit the body ring 54 of the retaining element 16 in diametrically opposite windows 79 capture, with the contact surfaces 168 the rearward facing radial surface 58 surrounded and extending in the axial direction surfaces 169 the outer cylindrical surface 55 surround.
Each axially extending surface 169 goes into a tapered surface, which in turn forward in an axially extending surface 170 passes. The distance between the surfaces 170 the hook 160 is slightly larger than the diameter of the forward extending cylindrical extension 62 of the retaining element 16 , Preferably, the distance between the surfaces 170 slightly smaller than the outer diameter of the O-ring 18 so the O-ring 18 through friction Keeps hanging. The forward surfaces 170 reach up to radially extending stop surfaces 171 , which is the rear extension of the narrow tapered spigot parts 156 define.
If an O-ring 18 and a retaining element 16 in the protective cap 132 be introduced, the hooks protrude 160 in the windows 79 one of the pairs of locking components 66 or 68 , The O-ring 18 comes at the extending in the radial direction stop surfaces 171 and between the axially forwardly extending surfaces 170 to lie. The annular extension 62 and the ring 54 of the retaining element 16 come between the O-ring 18 and the radially forward facing surfaces 168 the hook 160 to lie, that of the back facing surface 58 of the ring 54 lie in the radial direction opposite. The axially extending surfaces 169 lie close to the outer cylindrical surface 55 of the ring 54 at. Thus, the O-ring 18 and the retaining element 16 detachable in the protective cap 132 supported.
The axial distance between the radially forward facing surfaces 168 the hook 160 and the radially extending abutment surfaces 171 on narrow tapered pin part 156 is slightly larger than the sum of the axial thickness of the O-ring 18 and the axial extent of the annular extension 62 forward and the ring component 54 of the retaining element 16 , The O-ring 18 However, between the axially forwardly extending surfaces 170 the hook 160 slightly compressed in the radial direction. The through the elastic O-ring 18 applied counterforce ensures that the O-ring between the hooks 160 so long releasably held in place until it touches the connector component 12 is applied.
The length of the struts 152 in the axial direction is such that when the O-ring 18 , the annular extension 62 and the ring component 54 of the retaining element 16 according to 14 through the hooks 160 be noted, the distance between the inner conical surface 146 of the ring component 136 and the beveled outer surfaces 84 and 86 the locking arm 80 is big enough so that these contact the collar 22 of the pipe with the inner sloping surfaces 92 can move outward in the radial direction. However, if the O-ring 18 missing, the protective cap can 132 in the axial direction so far opposite the retaining element 16 be moved that the inner conical surface 146 the second oblique outer surfaces 86 the locking arms 80 tightly encloses. In such a position, the locking arms can 80 do not move outward in the radial direction, so that the insertion of the collar 22 over the locking arms 80 is prevented.
Such a shift can and will occur when trying to remove the protective cap 132 and the retaining element 16 with missing O-ring 18 on the plug component 12 to push (see 17 ). This measure prevents the intended assembly step from being completed and shows the absence of an O-ring 18 at. In this way, a wrong assembly without O-ring 18 prevented.
The protective cap 132 further includes two radially extending stop members 173 , which are offset by about 180 degrees from each other.
Each stop member is on one of the securing brackets 154 aligned. The stop members extend in the radial direction from the outer surface of the sleeve 134 to the outside and are in the axial direction at a distance from the front surface 162 an associated control element 158 arranged. The distance between each control 158 and the associated stop member 173 is sized so that the securing clips 154 Can be tilted so far that the hook 160 in the radial direction from the outer cylindrical surface 55 the ring part of the retaining element 16 be moved to the outside. By such a movement, it is possible the protective cap 132 remove as soon as the O-ring 18 and the retaining element 16 on the plug component 12 have been plugged. The stop components 173 prevent excessive bending of the securing clips 154 and thus the breaking of the pins 156 the protective cap 132 ,
Removing the protective cap 132 Can immediately after the step of plugging on a plug component 12 or later. However, this step will be prior to plugging in the connector component 12 in a coupling body 14 executed.
To form the assembly coupling cap 130 gets through the open end 150 the bore 148 of the ring 136 an O-ring 18 introduced. The O-ring will be between the axially front surfaces 170 the hook 160 at the radially extending abutment surfaces 171 in the area of the narrow spigot parts 156 used in the room, by the struts 152 and the hooks 160 is defined. The retaining element 16 gets that far through the hole 148 of the ring 136 introduced until the chamfer 57 of the retaining element 16 on the sloping stop surface 166 every hook 160 is applied. The protective cap 132 and the retaining element 16 are aligned by rotation so that the free ends of the hook 160 by the axial displacement of the cap 132 and of Retaining element 16 against each other in the diametrically opposed windows 79 either the locking components 66 or the locking components 68 to come to rest.
If the retaining element 16 in the axial direction further in relation to the protective cap 132 pushed, presses the chamfer 57 of the body ring 54 the fuse 16 against the sloping surface 166 every hook 160 and causes a bending of the associated actuating element 158 on narrow tapered pin part 156 , The free ends of the hooks 160 are pressed apart so that the ring 54 through the axially extending surfaces 167 can pass through. 14 shows that after passing the rear facing annular surface 58 of the ring 54 through the axially extending surfaces 167 the actuators 158 and the hooks 160 due to the elastic properties of the polymeric material of the protective cap 132 return to their normal, unbent position. The forward facing annular contact surfaces 168 the hook 160 snap into the rearward annular surface 58 of the ring 54 and complete the assembly of the coupling cap 130 ,
When assembled, the free end of each hook is located 160 in an associated window 79 a locking member 66 or 68 on the retaining element 16 , The circular contact surface 168 is located on the rear facing annular surface 58 of the ring 54 prevents and prevents the retaining element 16 in the axial direction relative to the protective cap 132 is moved backwards. The O-ring 18 lies in the axial direction in front of the front annular surface 64 the cylindrical extension 62 , The O-ring 18 is in the protective cap 132 between the front annular surface 64 and the circular abutment surfaces 171 and between the diametrically opposed front axially extending surfaces 170 locked in.
The assembly of the coupling cap 130 which the protective cap 132 with the included O-ring 18 and the retaining element 16 contains, can be mounted on a plug component 12 be delivered to another location. You can also use tubes with the on the plug component 12 assembled assembly of the coupling cap 130 are manufactured, which later with a coupling body 14 be completed to a liquid-tight connection. In any case, it is clear that the protective cap 132 before inserting the connector component 12 in the coupling body 14 from the assembly 130 is removed. The removal takes place by bending the actuators 158 up to the radially extending stop members 173 in order to catch the hook 160 spread it off so far that the protective cap 132 from the snap ring 54 can be removed.
The 15 and 16 show how the assembly coupling cap 130 on a plug component 12 is applied by the cap opposite the free end 21 of the pipe 20 in the axial direction is relatively moved so far until the inner oblique surfaces 92 the locking arms 80 the locking components 66 and 68 of the retaining element 16 on the collar 22 of the plug component 12 abutment (see 15 ). The diameter of the collar 22 is larger than that through the inner cylindrical surfaces 94 the locking arms 80 defined diameter. By the relative movement of the cap 130 opposite the pipe 20 acting in the axial direction forces cause the locking arms 80 of the retaining element 16 in the radial direction spread outwards. As soon as the arms 80 on the collar 22 of the plug component 12 are over, the arms feather 80 in the radial direction inwards to the in 16 illustrated mounting position. In this mounting position is the collar 22 of the plug component 12 between the backward facing surface 58 of the ring 54 and the front contact surfaces 82 the locking arms 80 and abuts against this, thereby preventing the retaining element 16 in the axial direction on the plug component 12 can slip. The O-ring 18 is also located in front of the annular extension 62 of the ring 54 on the cylinder surface 24 of the pipe 20 , Due to the size of the inner diameter of the O-ring 18 Hold this on the surface 24 and does not slip.
According to the present invention, the arrangement of the protective cap 132 made sure that an o-ring 18 in the assembly 130 in front of the retaining element 16 to come to rest. The coupling part assembly 130 Must have the O-ring 18 include, so that this on the plug component 12 is mounted. When the O-ring 18 not in the axial direction in front of the retaining element 16 located, causes the relative movement of the assembly of the coupling cap 130 opposite the plug component 12 in the axial direction, that the protective cap 132 in the axial direction so far opposite the retaining element 16 shifts until the inner conical surface 146 of the ring 136 the second bevelled outer surface 86 the locking arms 80 tightly encloses. Also, the tapered contact surface 166 every hook 160 comes into direct contact with the first bevelled outer surface 84 the associated locking arm 80 , As already explained above, this position prevents the locking components 66 or 68 and the protective cap 132 to each other, that the protective cap 132 and the retaining element 16 completely on the pipe 20 can be pushed. 17 shows the condition that occurs in the absence of the O-ring 18 in the assembly 130 results.
To insert the connector component 12 into the hole 26 a coupling body 14 First, the protective cap 132 be removed. To remove the protective cap 132 become the two actuators 158 in the direction of the barriers 173 drawn. The securing clips 154 swing forward and leave the hooks 160 go in the radial direction to the outside. Once the radial surfaces 168 in the radial direction outside the outer cylindrical surface 55 of the ring 54 of the retaining element 16 can lie, the protective cap by axial displacement forward of the plug component 12 be removed. After removing the protective cap 132 can the plug component 12 with the attached O-ring 18 and the retaining element 16 in the manner described above in the hole 26 a coupling body 14 be introduced.
With reference to the above illustrative embodiments, various features of the present invention have been described. It is, however, to be understood that changes may be made thereto without departing from the spirit and scope of the invention as set forth by the following claims.
Protective cap as an assembly for a quick-release coupling, the assembly comprising: a protective cap ( 132 ) with a hollow sleeve ( 134 ), one at a distance from the sleeve ( 134 ) located ring member ( 136 ), at least one strut ( 152 ) for connecting the sleeve ( 134 ) with the ring ( 136 ) and at least one of the sleeve ( 134 ) outgoing security clip ( 154 ); in a radial direction within the at least one strut ( 152 ) and the at least one securing clip ( 154 ) arranged sealing component ( 18 ); and a retaining element ( 16 ), which includes a ring component portion, wherein the ring portion of the retaining element ( 16 ) by the at least one securing clip ( 154 ) detachable with the protective cap ( 132 ) and the at least one securing clip ( 154 ) is configured so that it can be bent to the retaining element ( 16 ) of the protective cap ( 132 ) to solve.
Protective cap as an assembly according to claim 1, wherein the protective cap ( 132 ) two securing clips ( 154 ), which in the radial direction from the sleeve ( 134 ), the securing clips ( 154 ) a hook ( 160 ) extending in the axial direction to the ring ( 136 ), the hooks ( 160 ) are configured so that they engage with the ring portion of the retaining element ( 16 ) releasably connect, and the securing members further define narrow tapered constrictions, so that the hook ( 160 ) by bending the ring portion of the retaining element ( 16 ) to solve.
Protective cap as an assembly according to claim 2, wherein the retaining element ( 16 ) a front annular extension ( 62 ) associated with the sealing component ( 18 ), the securing clips ( 154 ) stop surfaces extending in the radial direction ( 171 ) and the sealing component ( 18 ) between the radially extending stop surfaces ( 171 ) and the annular extension ( 62 ) of the retaining element ( 16 ) is located.
Protective cap as assembly according to claim 3, wherein each hook ( 160 ) a radially extending stop surface ( 168 ) for releasable engagement in the ring section ( 22 ) of the retaining element ( 16 ), wherein the distance between the radially extending stop surfaces ( 168 ) of the securing clips ( 154 ) and in the radial direction extending stop surfaces of the hook ( 160 ) in the axial direction slightly larger than the entire thickness of the sealing component ( 18 ), the front annular extension ( 62 ) of the retaining element ( 16 ) and the ring section ( 22 ) of the retaining element ( 16 ) in the axial direction, while the sealing component ( 18 ), the annular extension ( 62 ) of the retaining element ( 16 ) and the ring portion of the retaining element ( 16 ) between the radially extending stop surfaces of the securing components and extending in the radial direction stop surfaces ( 168 ) the hook ( 160 ) are located.
Protective cap as assembly according to claim 4, wherein each hook ( 160 ) an axially forwardly extending surface ( 170 ) defined at a distance which is slightly smaller than the outer edge of the sealing component ( 18 ), and the sealing component ( 18 ) between the axially extending surfaces ( 179 ) the hook ( 160 ) is located.
Protective cap as an assembly according to claim 4, wherein the retaining element ( 16 ) at least two locking components ( 66 . 68 ), which extend from the ring portion in the axial direction, wherein each locking member ( 66 . 68 ) a locking arm ( 80 ) and the locking components ( 66 . 68 ) and the locking arms ( 80 ) when meeting a collar ( 22 ) on an associated tubular component ( 12 ) in the radial direction outward to a relative movement between the collar ( 22 ) and the locking arms ( 80 ) in the axial direction; where the ring ( 136 ) of the protective cap ( 132 ) an inner conical surface ( 146 ), which can be positioned to hold the Locking arms ( 80 ) of the locking components ( 66 . 68 ) so that the bending and the relative movement between the collar ( 22 ) and an associated tubular component ( 12 ) is prevented in the axial direction; and wherein the inner conical surface ( 146 ) of the ring ( 136 ) of the protective cap ( 132 ) can be positioned so that they the locking components ( 66 . 68 ) in the absence of the sealing component ( 18 ) in the assembly closely surrounds.
Protective cap as assembly according to claim 6, wherein at least one of the hooks ( 160 ) of the securing clips ( 154 ) of the protective cap ( 132 ) a tapered stop surface ( 166 ) attached to one of the locking components ( 66 . 68 ) in order to prevent the locking components ( 66 . 68 ) in the radial direction so far outward that in the absence of the sealing component ( 18 ) in the assembly the relative movement between the collar ( 22 ) and the locking arms ( 80 ) in the axial direction is possible.
Protective cap as an assembly according to claim 2, wherein the protective cap ( 132 ) next to each securing clip ( 154 ) further in the radial direction of the sleeve ( 134 ) outwardly extending stop member ( 173 ), the securing clips ( 154 ) with the radially extending stop members ( 173 ) to prevent the bending of the securing clip ( 154 ) to limit.
Protective cap as assembly according to claim 1, wherein the sealing component ( 18 ) is an elastomeric O-ring.
Protective cap as assembly according to claim 5, wherein the sealing component ( 18 ) is an elastomeric O-ring.
Protective cap as assembly according to claim 1, wherein the retaining element ( 16 ) is made by injection molding of a polyetheretherketone polymer.
Protective cap as an assembly according to claim 1, wherein the protective cap ( 132 ) is made by injection molding of a nylon polymer.
Protective cap as an assembly according to claim 1, wherein the protective cap ( 132 ) is made by injection molding of a high density polyethylene.
DE102006062894A 2004-02-05 2006-06-29 Protective cap Active DE102006062894B4 (en)
US11/174,262 2005-06-30
US11/174,262 US7467813B2 (en) 2004-02-05 2005-06-30 Quick connector
DE102006030428A DE102006030428B4 (en) 2005-06-30 2006-06-29 Quick connector
DE102006062894B4 true DE102006062894B4 (en) 2011-12-15
ID=37563663
DE102006062894A Active DE102006062894B4 (en) 2004-02-05 2006-06-29 Protective cap
DE102006030428A Active DE102006030428B4 (en) 2004-02-05 2006-06-29 Quick connector
JP (1) JP4837458B2 (en)
KR (1) KR101227251B1 (en)
CN (2) CN101699122B (en)
BR (1) BRPI0602459A (en)
DE (2) DE102006062894B4 (en)
FR (1) FR2889287A1 (en)
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2006-06-29 BR BRPI0602459-9A patent/BRPI0602459A/en not_active Application Discontinuation
2006-06-29 DE DE102006062894A patent/DE102006062894B4/en active Active
2006-06-29 DE DE102006030428A patent/DE102006030428B4/en active Active
2006-06-29 FR FR0652702A patent/FR2889287A1/en active Pending
2006-06-30 CN CN 200910152179 patent/CN101699122B/en active IP Right Grant
2006-06-30 CN CN 200610153425 patent/CN1940372B/en active IP Right Grant
2006-06-30 KR KR1020060060932A patent/KR101227251B1/en active IP Right Grant
2006-06-30 JP JP2006180565A patent/JP4837458B2/en active Active
DE102006030428A1 (en) 2007-01-18
JP4837458B2 (en) 2011-12-14
DE102006030428B4 (en) 2010-10-28
CN1940372B (en) 2012-09-05
CN101699122A (en) 2010-04-28
KR101227251B1 (en) 2013-01-28
FR2889287A1 (en) 2007-02-02
BRPI0602459A (en) 2007-02-21
KR20070003692A (en) 2007-01-05
JP2007010153A (en) 2007-01-18
CN101699122B (en) 2012-10-03
CN1940372A (en) 2007-04-04
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