GB2251281A - Axially compressible clip - Google Patents
Axially compressible clip Download PDFInfo
- Publication number
- GB2251281A GB2251281A GB9028165A GB9028165A GB2251281A GB 2251281 A GB2251281 A GB 2251281A GB 9028165 A GB9028165 A GB 9028165A GB 9028165 A GB9028165 A GB 9028165A GB 2251281 A GB2251281 A GB 2251281A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tubular member
- spring
- clip element
- element according
- slots
- 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.)
- Withdrawn
Links
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000005755 formation reaction Methods 0.000 description 24
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- 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
- F16B21/18—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 with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details
- F16B21/186—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 with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details external, i.e. with contracting action
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Abstract
The clip consists of a tubular member 11 having a radially extending flange formation 13 at one end 12, a longitudinally extending slot 14 extending from end 12 part way along the tubular member 11 and penetrating the flange formation 12 and adjacent portion of the wall of tubular member 11, and a plurality of axially separated slots 15 extending transversely through the wall of the tubular member 11 remote from the flange 13, adjacent slots 15 extending from opposite sides of the tubular member 11 and overlapping radially. <IMAGE>
Description
SPRING I CLIP ELEMENTS
The present invention relates to a spring/clip element and in particular to an element with an axially compressible spring formation and a clip formation formed integrally thereof.
It is often necessary to locate components axially on a shaft or rod. This may be achieved by using a circlip which engages in a circumferential groove in the shaft or rod and separate spring means. This method does require separate components and difficulties may occur in assembly, for example, when the spring must be held in a compressed condition while the circlip is located in the groove, particularly if access is restricted.
The present invention provides a combined spring/clip element which may be produced by relatively simple moulding or machining techniques.
According to one aspect of the present invention a spring/clip element comprises a tubular member having a radially extending flange formation, a longitudinally extending slot being provided to penetrate the flange formation and adjacent portion of the wall of the tubular member, and a plurality of axially separated laterally extending slots being provided in the wall of the tubular member remote from the flange, adjacent lateral slots extending from angularly separated locations on the circumference of the tubular member, the lateral slots overlapping radially.
With the spring/clip element of the present invention, the flange formation will provide a clip formation for location in a circumferential groove in a component to which the spring/clip element is fitted. The longitudinally extending groove permits the flange formation to be expanded radially so that it may be pushed over the component until the flange formation enters the circumferential groove. The lateral slots permit axial compression of the tubular member, to provide the spring formation.
The tubular member is made of a rigid flexible material for example a plastics material or metal. When made of plastics material, the spring/clip element will preferably be moulded. However, the spring/clip element may alternatively be machined from a tubular blank, particularly when made of metal.
An embodiment of the invention is now described, by way of example only, with reference to the accompanying drawings, in which:
Figure 1 is a part sectional side elevation of a spring/clip element formed in accordance with the present invention; and
Figure 2 illustrates how the spring/clip element illustrated in Figure 1 is used to locate a component on a shaft.
As illustrated in Figure 1, the spring/clip element 10 comprises a tubular member 11. One end 12 of the tubular member 11 has a thickened wall portion and defines an inwardly directed flange formation 13. A pair of diametrically opposed axially extending slots 14 extend from the flanged end 12 of the tubular member 11, part way along its length. The slots 14 penetrate through the wall of the tubular member 11 and also through the flange formation 13, dividing the flange formation 13 into two segments.
A series of transverse slots 15 are provided in the tubular member 11 towards end 16 thereof remote from the flange formation 13. Alternate slots 15 extend from opposite sides of the tubular member 11, the slots extending part way across the tubular member 11 and overlapping radially.
As illustrated in Figure 2, the spring/clip element 10 may be used to locate a component 20 on a shaft 21.
Spring/clip element 10 fits over the free end of shaft 21 and is pushed down the shaft 21, slots 14 permitting the sectors of flange formation 13 to flex outwardly. This may be facilitated by the provision of a tapered or chamfered portion at the end of shaft 21.
When the end 16 of spring/clip element 10 engages the component 20, the slots 15 will close permitting axial compression of the tubular member 11. As the slots 15 alternate from opposite sides of the tubular member 11, distortion of the tubular member 11 on both sides will be equal and the end 16 will remain parallel to the component 20. The tubular member 11 is compressed in this manner until the sectors of the flange formation 13 engage and spring into an annular groove 23 on the shaft 21.
The spring/clip element 10 may be used in this way to accommodate tolerance variations in the component 20 and shaft 21 and/or to resiliently load the component 20 relative to the shaft 21.
The spring rate of the spring formation of the spring/clip element 10 may be adjusted as desired, by varying the width, depth and separation of the slots 15, the thickness of the wall of the tubular member 11 or the material properties. The limit to the axial load that may be applied by the spring formation will be the shear load of the flange formation 13, which will depend upon its thickness and the material properties.
Various modifications may be made without departing from the invention. For example, the flange formation may be located intermediate of the ends of the tubular member, spring formations being provided on either side of the flange formation. While in the above embodiment, two axially extending slots are provided, one or more longitudinally extending slots may be used, provided that they permit sufficient expansion of the flange formation.
Also, the number, orientation and spacing of the lateral slots may be varied. For example, the lateral slots may be inclined to the axis of the tubular member and to one another, and adjacent slots may extend from locations at different angular spacings around the circumference of the tubular member. Furthermore, while in the above embodiment the spring/clip element has an inwardly directed flange formation to engage a circumferential groove in a shaft or rod, the flange formation may alternatively extend outwardly to engage a circumferential groove in a bore.
Claims (10)
1. A spring/clip element comprising a tubular member having a radially extending flange formation, a longitudinally extending slot being provided to penetrate the flange formation and adjacent portion of the wall of the tubular member, and a plurality of axially separated laterally extending slots being provided in the wall of the tubular member remote from the flange, adjacent lateral slots extending from angularly separated locations on the circumference of the tubular member, the lateral slots overlapping radially.
2. A spring/clip element according to Claim 1 in which the flange formation extends radially inwardly.
3. A spring/clip element according to Claim 1 or 2 in which the flange formation is at one end of the tubular member.
4. A spring/clip element according to any one of the preceding claims in which a pair of axially extending diametrically opposed slots penetrate the flange formation and adjacent portion of the wall of the tubular member.
5. A spring/clip element according to any one of the preceding claims in which a plurality of axially separated transverse slots are provided in the wall of the tubular member remote from the flange, adjacent transverse slots extending from opposite sides of the tubular member.
6. A spring/clip element according to any one of the preceding claims in which the tubular member is made from a rigid flexible material.
7. A spring/clip element according to Claim 6 in which the tubular member is made of a plastics material or metal.
8. A spring/clip element according to any one of the preceding claims in which the tubular member is moulded from a plastics material.
9. A spring/clip element according to any one of Claims 1 to 7 in which the tubular member is machined from a tubular blank.
10. A spring/clip element substantially as described herein with reference to, and as shown in, Figures 1 and 2 of the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9028165A GB2251281A (en) | 1990-12-28 | 1990-12-28 | Axially compressible clip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9028165A GB2251281A (en) | 1990-12-28 | 1990-12-28 | Axially compressible clip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9028165D0 GB9028165D0 (en) | 1991-02-13 |
| GB2251281A true GB2251281A (en) | 1992-07-01 |
Family
ID=10687659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9028165A Withdrawn GB2251281A (en) | 1990-12-28 | 1990-12-28 | Axially compressible clip |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2251281A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB547988A (en) * | 1940-11-12 | 1942-09-21 | Tinnerman Products Inc | Improvements relating to fastening means for securing handles, knobs and other articles to stems or the like |
| GB898904A (en) * | 1959-12-15 | 1962-06-14 | Ft Products Ltd | An improved fastener |
| GB924609A (en) * | 1959-09-25 | 1963-04-24 | Lucien Blanchet | Cable identification sleeves and the like |
| GB1280249A (en) * | 1969-11-26 | 1972-07-05 | Kingshott Invest Proprietary L | Clips |
| GB1369136A (en) * | 1972-04-06 | 1974-10-02 | Fischer Artur | Fixing device |
| GB1530309A (en) * | 1977-07-07 | 1978-10-25 | Heyworth M | Quick release ligature for clarinets and saxophones |
| GB2003571A (en) * | 1977-08-31 | 1979-03-14 | Hilti Ag | Expansible dowel |
| DE3229971C1 (en) * | 1982-08-12 | 1983-11-17 | Degen, geb. Radau, Elisabeth, 4730 Ahlen | Detachable attachment element |
| EP0267161A2 (en) * | 1986-11-03 | 1988-05-11 | Franz Spreiter | Screwing device |
-
1990
- 1990-12-28 GB GB9028165A patent/GB2251281A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB547988A (en) * | 1940-11-12 | 1942-09-21 | Tinnerman Products Inc | Improvements relating to fastening means for securing handles, knobs and other articles to stems or the like |
| GB924609A (en) * | 1959-09-25 | 1963-04-24 | Lucien Blanchet | Cable identification sleeves and the like |
| GB898904A (en) * | 1959-12-15 | 1962-06-14 | Ft Products Ltd | An improved fastener |
| GB1280249A (en) * | 1969-11-26 | 1972-07-05 | Kingshott Invest Proprietary L | Clips |
| GB1369136A (en) * | 1972-04-06 | 1974-10-02 | Fischer Artur | Fixing device |
| GB1530309A (en) * | 1977-07-07 | 1978-10-25 | Heyworth M | Quick release ligature for clarinets and saxophones |
| GB2003571A (en) * | 1977-08-31 | 1979-03-14 | Hilti Ag | Expansible dowel |
| DE3229971C1 (en) * | 1982-08-12 | 1983-11-17 | Degen, geb. Radau, Elisabeth, 4730 Ahlen | Detachable attachment element |
| EP0267161A2 (en) * | 1986-11-03 | 1988-05-11 | Franz Spreiter | Screwing device |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9028165D0 (en) | 1991-02-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |