GB2144821A - Swivel link - Google Patents

Swivel link Download PDF

Info

Publication number
GB2144821A
GB2144821A GB08321628A GB8321628A GB2144821A GB 2144821 A GB2144821 A GB 2144821A GB 08321628 A GB08321628 A GB 08321628A GB 8321628 A GB8321628 A GB 8321628A GB 2144821 A GB2144821 A GB 2144821A
Authority
GB
United Kingdom
Prior art keywords
clevis
swivel
head
rotatable member
aperture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08321628A
Other versions
GB8321628D0 (en
GB2144821B (en
Inventor
Michael Alan Frost
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell UK Ltd
Original Assignee
Bendix Ltd
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 Bendix Ltd filed Critical Bendix Ltd
Priority to GB08321628A priority Critical patent/GB2144821B/en
Publication of GB8321628D0 publication Critical patent/GB8321628D0/en
Priority to EP84305236A priority patent/EP0133596A3/en
Publication of GB2144821A publication Critical patent/GB2144821A/en
Application granted granted Critical
Publication of GB2144821B publication Critical patent/GB2144821B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/08—Brake cylinders other than ultimate actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B9/00—Connections of rods or tubular parts to flat surfaces at an angle
    • F16B9/05—Connections of rods or tubular parts to flat surfaces at an angle by way of an intermediate member
    • F16B9/056—Connections of rods or tubular parts to flat surfaces at an angle by way of an intermediate member the intermediate member extending through the flat surface; the rod or tubular part extending through the flat surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/044—Nut cages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B9/00—Connections of rods or tubular parts to flat surfaces at an angle
    • F16B9/05—Connections of rods or tubular parts to flat surfaces at an angle by way of an intermediate member
    • F16B9/054—Connections of rods or tubular parts to flat surfaces at an angle by way of an intermediate member the intermediate member being threaded

Abstract

A swivel which comprises an axially rotatable member (4) extending through an aperture (3) in a clevis and constrained by a head (5) against movement in one direction has a spring clip having a first part (10) gripping the rotatable member and a second part (11, 12) extending partly around the clevis to resiliently engage the head and continuously urge it against the clevis. <IMAGE>

Description

1
GB2 144821A
1
SPECIFICATION Swivel element
5 This invention relates to swivel elements and relates especially but not exclusively to a swivelling clevis.
In linkages for brake systems it is usual to make adjustable connections between a pneu-10 matically operable brake actuator and a brake mechanism via a swivel formed by an adjustable threaded member a head of which is retained in an aperture in a device whereby the adjustable member is rotatable in relation 1 5 to the clevis. Such a swivel is simple to manufacture and assemble but is susceptible to undesired movement at the head of the threaded member and the clevis due to road and engine vibration. Such movement can 20 cause wear and undesirable rattle on the chassis of a vehicle.
The present invention provides a swivel element comprising an axially rotatable member extending through an aperture in a clevis 25 and retained therein by a head characterised by a resilient member acting against the head towards the aperture to prevent axial movement between the rotatable member and the clevis.
30 Preferaly, the resilient member comprises a clip having a first part which grips the rotatable membr and integral therewith a part which extends partly around the clevis to resiliently engage the head.
35 In one embodiment of the invention such a clip may also serve to secure one end of a flexible protective gaiter.
In order that the invention may be more clearly understood and readily carried into 40 effect the same will be further described by way of example with reference to the accompanying drawing of which:
Figure 7 illustrates a part sectional view of a swivel in accordance with the invention, 45 Figure 2 illustrates a side view of a resilient member for use in the swivel of Fig. 1,
Figure 3 illustrates and end-on view of the member of Fig. 2,
Figure 4 illustrates an underneath view of 50 the resilient member and,
Figure 5 illustrates a part-sectional view of a swivel including a resilient protective gaiter.
Referring to Fig. 1 the section shows one side plate reference 1 of a clevis which is 55 joined to a further side plate via a transverse part 2 provided with an aperture 3. Thus the transverse part 2 joins two side plates such as 1 together and the aperture 2 is a clearance fit for an axially rotatable member 4 having a 60 hexagon 1 3 at one end and a head 5 of which is appreciably larger than the aperture 3. The member 4 is through-drilled and provided with an internal threaded part 6 which is threadedly adjustably engageable with the 65 end of a threaded rod 7 being the force output rod of an actuator (not shown). The clevis has aligned transverse drillings 8 by means of which and a pin (not shown) retained therein is provided in a linkage between the end 7 of the actuator rod and a brake mechanism also not shown.
In order to maintain the head 5 firmly in engagement with the clevis, a resilient member 9 is provided which acts against the head 5. As more clearly shown in Figs. 2, 3 and 4, the member 9 comprises a clip which has a first part 10 which clips around the external cylindrical surface of the member 4 and the part 10 is joined by a narrow intermediate part 11 to a further bifurcated part 12 which engages resiliently with the head 5. The clip 9 is constructed of spring-steel suitably plated for weather protection. The two arms of the part 12 are such as to permit threaded adjustment of the member 4 in relation to the rod 7 by means of a spanner engageable with hexagon 1 3 (Fig. 1) to result in the threaded rod 7 to pass through the member 4 without interference by the resilient means 9. Although such adjustement may be excessive for normal running adjustment in relation to a brake mechanism, such adjustment may be desirable in the case of a spring brake actuator in order to permit mechanical release of the force of the spring of the spring brake actuator in the event of release being required when there is no pressure available or, alternatively, during initial setting up.
Referring to Fig. 5, the swivel element shonw therein is substantially identical to that shown in Fig. 1 and varies with the exception of the clip the parts thereof have been given the same reference numerals. In this embodiment the clip is denoted by reference 19 and the first part thereof which clips around the member 4 is made of sufficiently larger internal diameter to accommodate a close fitting outer end 23 of a corrugated flexible protective gaiter 24. The outer end of the gaiter 24 (not shown) is firmly secured to the body of the brake actuator to provide complete protection against the ingress of road grid and water. It is, therefore, seen that the resilient member 1 9 constructed in the way shown now serves the dual purpose of preventing axial movement between the rotatable member and the clevis and of securing the outer end of the flexible gaiter.
Whilst the invention has been described more especially in relation to a swivel element for use in a brake linkage, the invention is clearly not limited to brake linkages and will find application in other adjustable swivels which are otherwise susceptible to undesirable wear and noise.

Claims (4)

1. A swivel element comprising an axially rotatable member extending through an aperture in a clevis and retained therein by a head
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2
GB2 144821A
2
and including a resilient member acting against the head towards the aperture to prevent axial movement between the rotatable member and the clevis.
5 2. A swivel as claimed in claim 1 wherein the resilient member comprises a clip having a first part which grips the rotatable member and integral therewith a part which extends partly around the clevis to resiliently enqaqe 10 the head..
3. A swivel as claimed in claim 2 wherein the first part grips a close-fitting end of a flexible protective gaiter.
4. A swivel substantially as described
1 5 herewith reference to Figs. 1, 2, 3, and 4 of the accompanying drawings.
Printed in the United Kingdom for
Her Majesty's Stationery Office. Dd 8818935, 1985, 4235. Published at The Patent Office. 25 Southampton Buildings,
London, WC2A 1AY, from which copies may be obtained.
GB08321628A 1983-08-11 1983-08-11 Swivel link Expired GB2144821B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB08321628A GB2144821B (en) 1983-08-11 1983-08-11 Swivel link
EP84305236A EP0133596A3 (en) 1983-08-11 1984-08-01 Brake actuator linkages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08321628A GB2144821B (en) 1983-08-11 1983-08-11 Swivel link

Publications (3)

Publication Number Publication Date
GB8321628D0 GB8321628D0 (en) 1983-09-14
GB2144821A true GB2144821A (en) 1985-03-13
GB2144821B GB2144821B (en) 1986-09-03

Family

ID=10547146

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08321628A Expired GB2144821B (en) 1983-08-11 1983-08-11 Swivel link

Country Status (2)

Country Link
EP (1) EP0133596A3 (en)
GB (1) GB2144821B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3603246A1 (en) * 1986-02-03 1987-08-06 Springfix Befestigungstechnik PIN WITH SAFETY BRACKET
DE58907616D1 (en) * 1989-01-03 1994-06-09 Volkswagen Ag Bearing pin arrangement.
GB9013174D0 (en) * 1990-06-13 1990-08-01 Bendix Ltd Improvements to compressed air operable brake actuator assemblies

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1496357A (en) * 1975-04-16 1977-12-30 Firth Cleveland Fastenings Ltd Pin-retaining clips
GB2090365A (en) * 1980-12-29 1982-07-07 Ford Motor Co Linkage and retainer clip assembly

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1772301U (en) * 1958-05-23 1958-08-14 Walter Engelmann HINGED BOLTS FOR FORK JOINTS OD. DGL.
DE1925043U (en) * 1965-03-13 1965-10-07 Blaupunkt Werke Gmbh FASTENING DEVICE FOR A CONTROL BUTTON.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1496357A (en) * 1975-04-16 1977-12-30 Firth Cleveland Fastenings Ltd Pin-retaining clips
GB2090365A (en) * 1980-12-29 1982-07-07 Ford Motor Co Linkage and retainer clip assembly

Also Published As

Publication number Publication date
GB8321628D0 (en) 1983-09-14
EP0133596A2 (en) 1985-02-27
EP0133596A3 (en) 1985-07-10
GB2144821B (en) 1986-09-03

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Legal Events

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PCNP Patent ceased through non-payment of renewal fee