DK9600300U3 - Locking pin with associated bushing. - Google Patents

Locking pin with associated bushing. Download PDF

Info

Publication number
DK9600300U3
DK9600300U3 DK9600300U DK9600300U DK9600300U3 DK 9600300 U3 DK9600300 U3 DK 9600300U3 DK 9600300 U DK9600300 U DK 9600300U DK 9600300 U DK9600300 U DK 9600300U DK 9600300 U3 DK9600300 U3 DK 9600300U3
Authority
DK
Denmark
Prior art keywords
pin
sleeve
connecting element
bushing
element according
Prior art date
Application number
DK9600300U
Other languages
Danish (da)
Inventor
Mogens Rydder
Original Assignee
Mogens Rydder
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mogens Rydder filed Critical Mogens Rydder
Priority to DK9600300U priority Critical patent/DK9600300U3/en
Application granted granted Critical
Publication of DK9600300U3 publication Critical patent/DK9600300U3/en

Links

Landscapes

  • Pivots And Pivotal Connections (AREA)

Description

i DK 96 00300 U3in DK 96 00300 U3

TEKNIKKENS STANDPUNKTBACKGROUND OF THE ART

Frembringelsen angår et forbindelseselement omfattende en drejelig tap, der kan optages af og fastholdes i en bøsning med en snapforbindelse. Bøsningen er ved sin ene ende opslidset og har en indvendig forsnævring, der kan udvides elastisk ved indskydning af tappen og derefter gå i indgreb med en rundtgående reces på tappen.The invention relates to a connecting element comprising a pivotal pin which can be taken up and held in a sleeve with a snap connection. The sleeve is slit at one end and has an internal narrowing which can be elastically extended by inserting the pin and then engaging with a circumferential recess on the pin.

Sådanne forbindelseselementer er kendte. Når tappen presses gennem bøsningen, skubbes de flige, som den indsnævrede del består af på grund af slidserne, fra hinanden, indtil den indvendige forsnævring kan gå i indgreb med recessen. I den låste stilling modvirkes tilbagetrækning af tappen ved at bøsningens indsnævring er i spænd mod recessens bund og ved den geometriske udformning af fladerne i indgrebet. Ulempen ved elementet er, at det ikke er muligt at adskille delene manuelt.Such connecting elements are known. As the pin is pressed through the bushing, the tabs of which the constricted portion is formed due to the slots are pushed apart until the internal constriction can engage the recess. In the locked position, retraction of the pin is counteracted by the constriction of the sleeve in tension against the bottom of the recess and by the geometric shape of the surfaces in the engagement. The disadvantage of the element is that it is not possible to separate the parts manually.

FORKLARING AF FREMBRINGELSENEXPLANATION OF PRODUCTION

Det særlige ved frembringelsen er, at bøsningens opslidsede del er udført med form, dimensioner og/eller af et materiale således, at tappen manuelt kan udtrækkes af bøsningen.What is special about the production is that the slotted part of the sleeve is made of shape, dimensions and / or of a material such that the pin can be pulled out manually by the sleeve.

Derved øges anvendeligheden af forbindelseselementet, da udtrækningskraften er reduceret og samlingen ikke længere er permanent, og delene kan udskiftes for vedligeholdelse eller reparation, eller af hensyn til transportvolumen.Thereby, the utility of the connecting element is increased as the pull-out force is reduced and the assembly is no longer permanent and the parts can be replaced for maintenance or repair, or for transport volume.

Den reducerede udtrækningskraft kan opnås ved at den opslidsede del er svækket ved en formindsket vægtykkelse, for eksempel en indskæring, jævnfør krav 2.The reduced pull-out force can be obtained by weakening the slotted portion by a reduced wall thickness, for example a cut, according to claim 2.

Det samme kan opnås, hvis man som angivet i krav 3 har en 2 DK 96 00300 U3 vægtykkelse i den opslidsede del i området mellem 0,5 og 2 mm.The same can be achieved if, as stated in claim 3, one has a wall thickness in the slotted part in the range between 0.5 and 2 mm.

Som angivet i krav 4 foretrækkes det, at bøsningens materiale 5 er af polyamid eller med en væsentlig bestanddel af polyamid. Derved opnås en tilstrækkelig eftergivelighed kombineret med høj brudstyrke og slidstyrke for elementet.As stated in claim 4, it is preferred that the material 5 of the sleeve is made of polyamide or with a substantial component of polyamide. This provides a sufficient resilience combined with high tensile strength and wear resistance of the element.

10 TEGNINGEN10 THE DRAWING

Udførelseseksempler for frembringelsen skal herefter beskrives med henvisning til tegningen, hvor 15 fig. 1 viser i snit et forbindelseselement ifølge opfindelsen i en første udførelsesform og i den låste tilstand, fig. 2 viser elementet ifølge fig. l under udtrækning 20 af tappen, fig. 3 viser et snit gennem bøsningen på fig. 1, og fig. 4 viser en anden udførelsesform for bøsningen.Embodiments of the invention will now be described with reference to the drawing, in which: FIG. 1 is a sectional view of a connecting element according to the invention in a first embodiment and in the locked state; 2 shows the element according to FIG. 1 during extension 20 of the pin; FIG. 3 shows a section through the bush of FIG. 1, and FIG. 4 shows another embodiment of the bushing.

2525

BESKRIVELSE AF UDFØRELSESEKSEMPELDESCRIPTION OF EMBODIMENT EXAMPLE

En drejelig tap 1, der kan roteres om sin symmetriakse 2, 30 fastholdes i en låst stilling af en ved sin ene ende . opslidset bøsning 3. Bøsningen 3 forbinder tappen l med den ene 4 af de dele, der sammenholdes, medens tappen l er fastgjort til en anden, ikke vist del.A pivotal pin 1 rotatable about its axis of symmetry 2, 30 is held in a locked position by one at its one end. slotted bushing 3. The bushing 3 connects the pin 1 to one of the parts being held together while the pin 1 is attached to another portion not shown.

35 Som vist på fig. 1 kan bøsningen 3 med tappen 1 ikke udtrækkes af delen 4 på grund af den udvidelse, der sker når flige 5 på bøsningen presses ud ved at den indvendige krave 6, også 3 DK 96 00300 U3 kaldet forsnævringen, er i spænd mod bunden 7 af en reces 8 på tappen l. Fladen 9 på bøsningens ende og falsen 10 på recessen 8, og som støder mod hinanden ved A ved forsøg på udtrækning, forløber begge på tværs af trækretningen og yder stor modstand.35 As shown in FIG. 1, the bushing 3 with the pin 1 cannot be pulled out of the part 4 due to the expansion that occurs when tabs 5 on the bushing are pressed out by the inner collar 6, also called the constriction, in tension against the bottom 7 of a recess 8 on the pin 1. The surface 9 on the end of the sleeve and the recess 10 on the recess 8, and which abut each other at A when trying to pull out, both extend across the pulling direction and provide great resistance.

Ifølge frembringelsen er der tilvejebragt en kombination af udformning, dimensioner og materialevalg, således at når en kraft P påtrykkes tappen l som vist på fig. 2, vil fligene 5 blive udsat for et moment på grund af afstanden mellem kraftens angrebspunkt A og kraftoverføringslinien S i fligen 5, se fig. l. Som vist på fig. 2 vil fligene 5 bøje ud indtil fladen 9 danner en skrå vinkel, hvorefter fligene 5 på grund af elasticiteten vil smutte ud til siderne og lade tappen 1 passere.According to the invention, a combination of design, dimensions and material selection is provided so that when a force P is applied to the pin 1 as shown in FIG. 2, the tabs 5 will be subjected to a torque due to the distance between the point of attack A of the force and the transmission line S of tab 5, see fig. 1. As shown in FIG. 2, the tabs 5 will bend until the surface 9 forms an oblique angle, after which the tabs 5 due to the elasticity will extend to the sides and allow the pin 1 to pass.

For at der kan ske en manuel udtrækning af tappen i, eventuelt ved hjælp af en specialtang, må den maksimale frigørelseskraft P ikke overstige ca. 25 kp (250 N). Det opnås ved en passende kombination af materialerne og udformning af bøsningen 3.In order to manually pull out the pin in, possibly by means of a special pliers, the maximum release force P must not exceed approx. 25 kp (250 N). It is obtained by an appropriate combination of the materials and the design of the bushing 3.

Tilstrækkelig elasticitet og sejhed opnås ved at anvende polyamid (nylon) som materiale, uden at det dog udelukker visse andre kunststoftyper med lignende egenskaber.Adequate elasticity and toughness is achieved by using polyamide (nylon) as a material, without excluding certain other types of plastics with similar properties.

I en geometrisk enkel udførelse af bøsningen som vist på fig. 3 med et cylindrisk hul i bøsningen 3 kan vægtykkelsen t ved fligene 5 dimensioneres til omkring 1 mm. Afhængig af længden af den del af fligene 5, som rager ud fra delen 4, kan større eller mindre dimension anvendes.In a geometrically simple embodiment of the bush as shown in FIG. 3 with a cylindrical hole in the bush 3, the wall thickness t at the tabs 5 can be dimensioned to about 1 mm. Depending on the length of the portion of the tabs 5 projecting from the portion 4, larger or smaller dimension may be used.

Alternativt kan vælges en indskæring i eller lokal formindskelse af godstykkelsen som vist på fig. 4 for at opnå tilstrækkelig bøjelighed i fligene 5.Alternatively, a cut in or local reduction of the thickness may be selected as shown in FIG. 4 to obtain sufficient flexibility in the tabs 5.

Claims (4)

1. Forbindelseselement omfattende en drejelig tap (l), der kan optages af og fastholdes i en bøsning (3) med en snapforbindelse., hvor bøsningen (3) ved sin ene ende er opslidset og har en indvendig forsnævring (6), der kan udvides elastisk ved indskydning af tappen (l) og derefter gå i indgreb med en rundtgående reces (8) på tappen (l), kendetegnet ved, at bøsningens opslidsede del (5) er udført med form, dimensioner og/eller af et materiale således, at tappen (1) manuelt kan udtrækkes af bøsningen (3).A connecting element comprising a pivotal pin (1) which can be taken up and held in a sleeve (3) with a snap connection, wherein the sleeve (3) is slit at one end and has an internal constriction (6) which can be is elastically extended by insertion of the pin (1) and then engages a circumferential recess (8) on the pin (1), characterized in that the slotted portion (5) of the sleeve is formed with shape, dimensions and / or a material thus the pin (1) can be manually pulled out by the bushing (3). 2. Forbindelseselement ifølge krav i, kendetegnet ved, at den opslidsede del (5) er svækket ved en formindsket vægtykkelse, for eksempel en indskæring (i).Connecting element according to claim i, characterized in that the slotted part (5) is weakened by a reduced wall thickness, for example a cut (i). 3. Forbindelseselement ifølge krav l eller 2, kendetegnet ved, at vægtykkelsen (t) i den opslidsede del (5) er mellem 0,5 og 2 mm.Connecting element according to claim 1 or 2, characterized in that the wall thickness (t) in the slotted part (5) is between 0.5 and 2 mm. 4. Forbindelseselement ifølge et af de foregående krav, kendetegnet ved, at bøsningens materiale er af polyamid eller med en væsentlig bestanddel af polyamid.Connecting element according to one of the preceding claims, characterized in that the material of the sleeve is made of polyamide or with a substantial component of polyamide.
DK9600300U 1996-09-10 1996-09-10 Locking pin with associated bushing. DK9600300U3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK9600300U DK9600300U3 (en) 1996-09-10 1996-09-10 Locking pin with associated bushing.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK9600300U DK9600300U3 (en) 1996-09-10 1996-09-10 Locking pin with associated bushing.

Publications (1)

Publication Number Publication Date
DK9600300U3 true DK9600300U3 (en) 1996-12-13

Family

ID=8155720

Family Applications (1)

Application Number Title Priority Date Filing Date
DK9600300U DK9600300U3 (en) 1996-09-10 1996-09-10 Locking pin with associated bushing.

Country Status (1)

Country Link
DK (1) DK9600300U3 (en)

Similar Documents

Publication Publication Date Title
US5813096A (en) Snap fastener with a safety lock
EP1386107B1 (en) Pipe coupling
EP1519094B1 (en) A collet for a swivel pipe coupling
US6439617B1 (en) Coupler for a pipe or hose section
JP2001501286A (en) Mounting device
US3016562A (en) Grommet
JPH0327764B2 (en)
MXPA06010752A (en) Centering pin.
US5553964A (en) Mechanical tubular element such as transmission shaft of a motor vehicle
JP5374789B2 (en) Plastic blind rivet
DK9600300U3 (en) Locking pin with associated bushing.
JP2008303960A (en) Link connector for synthetic resin chain
US7507093B2 (en) Electrical module
DE102004045993A1 (en) Pipe clip, with a ring-shaped body and foot, has a closure clip with a ratchet stop action to lock the clip at the opening by a relative movement between ratchets in a positive fit
CZ20023922A3 (en) Expansion bolt
US753439A (en) Duncan s
US20070065257A1 (en) Cotter pin
US20040239054A1 (en) Spacer element for a collect chuck and collect chuck
KR200211394Y1 (en) coupler for reinforcement steel bar
US1286701A (en) Turnbuckle-lock.
US3519295A (en) Fishing rod connector
KR100503105B1 (en) Straddling dowel
US642477A (en) Rod-clamp.
WO1985004222A1 (en) Connecting apparatus
KR100534925B1 (en) Apparatus for fixing assembly

Legal Events

Date Code Title Description
UDE Decision on termination: total termination (utility model)