GB2479124A - Clamping device for an elongate aperture - Google Patents

Clamping device for an elongate aperture Download PDF

Info

Publication number
GB2479124A
GB2479124A GB1005209A GB201005209A GB2479124A GB 2479124 A GB2479124 A GB 2479124A GB 1005209 A GB1005209 A GB 1005209A GB 201005209 A GB201005209 A GB 201005209A GB 2479124 A GB2479124 A GB 2479124A
Authority
GB
United Kingdom
Prior art keywords
clamping
clamping element
aperture
axially
shaft
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Withdrawn
Application number
GB1005209A
Other versions
GB201005209D0 (en
Inventor
Phillip C Taylor
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.)
GM Global Technology Operations LLC
Original Assignee
GM Global Technology Operations LLC
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 GM Global Technology Operations LLC filed Critical GM Global Technology Operations LLC
Priority to GB1005209A priority Critical patent/GB2479124A/en
Publication of GB201005209D0 publication Critical patent/GB201005209D0/en
Publication of GB2479124A publication Critical patent/GB2479124A/en
Withdrawn legal-status Critical Current

Links

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
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/08—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation
    • F16B13/0808—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation by a toggle-mechanism
    • 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
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/045—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front having axially compressing parts allowing the clamping of an object tightly to the wall
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
    • H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
    • H02B1/044—Mounting through openings
    • 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
    • F16B21/02—Releasable fastening devices locking by rotation

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Clamps And Clips (AREA)

Abstract

A clamping device 10 for attachment to an elongate aperture 12 in a panel 14 comprises a first elongate clamp element 22 which is passed through the aperture and then rotated through 90°, and a second clamp element 30 which is loosely mounted on a threaded shaft 24 fixed to element 22. The elements are clamped by tightening a nut 40 on the thread of the shaft. The element 30 has parallel arms 34 projecting from it which serve to locate element 30 in aperture 12 during assembly and to retain element 20 in its rotated position in the subsequent stages of assembly.

Description

CLAMPING ARRANGEMENT
The present invention relates to a clamping arrangement for clamping a device to an apertured member and to a method of clamping from one side of the apertured member without the need for access to the other side thereof.
US 4,148,542 discloses a locking mechanism for attaching panel-mounted components to an elongate aperture in a panel. A shaft, which is arranged to be passed from one side through the aperture, has two clamping elements fixedly attached thereto and extending radially therefrom. A first, resilient clamping element is also elongate and is configured to be passed with the shaft through the aperture and then rotated so that it can no longer pass through the aperture. The second clamping element is attached axially next to the first clamping element and is generally circular. The second clamping element has a raised portion at its surface facing the first clamping element. The raised portion is also elongate and, when the first clamping element is rotated into its non-return position, the raised portion is arranged to fit into the aperture. The locking mechanism is held in position by the resilience of the first clamping element.
The present invention seeks to provide an improved clamping arrangement. For example, in US 4,148,542, the rotation of the first clamping element between its initial and final position becomes increasingly difficult because of its resilient configuration. Aspects of the present invention seek to provide a clamping arrangement in which the clamping elements can be freely positioned before the arrangement is tightened.
After final assembly, the locking mechanism of US 4,148,542 can still be released by a sufficiently hard pull. Other aspects of the present invention seek to provide a clamping arrangement which is secure against release.
In US, 4,148,542 the height of the raised position on the surface of the second clamping element is substantially the same as the depth of the aperture (i.e. the thickness of the apertured member) . Further aspects of the present invention seek to provide a larger projection from the second clamping element which extends through and beyond the aperture to provide a more secure attachment during and/or after assembly According to a first aspect of the present invention, there is provided a clamping arrangement comprising a member having an aperture and a clamping device for attachment to the aperture, the clamping device comprising a shaft member having an axis and having fixed therewith a first clamping element which is capable of passing axially through the aperture in a first relative orientation but cannot pass axially through the aperture in a second relative orientation, the shaft member having loosely mounted thereon a second clamping element, and the clamping device further comprising a locking element for the second clamping element, the arrangement being such that, after the first clamping element has been passed axially through the aperture and then rotated so that it cannot axially return through the aperture, the second clamping element can be moved in a first direction towards the first clamping element and the locking element can then be engaged to urge the second clamping element in said first direction so that the apertured member is firmly clamped between the first and second clamping elements.
Such a clamping arrangement provides a secure way of clamping a device to an apertured member.
Preferably, the shaft member has a thread and said locking element comprises a nut which engages said thread and can be tightened to urge the second clamping element in said first direction. This provides a secure arrangement which can not be inadvertently released.
In a preferred embodiment one or more projecting members extend from said second clamping element in said direction, the projecting members being arranged to fit within said aperture in second and third directions perpendicular to said shaft axis. The projecting members preferably have an axial extent greater than the thickness of the apertured member. This ensures that the projecting members can be securely located in the aperture without the danger of inadvertent release. Thus the second clamping member can be held in its correct position in a non-ratable manner.
Preferably the projection members have substantially the same extent as the aperture in a said second direction but a smaller extent in a said third direction which is transverse to said second direction. The projecting members have an overall dimension "d" in the second direction which is just less than the corresponding dimension of the aperture. This means that they can readily fit in the aperture, but can hold the second clamping element with, at most, a small amount of play.
The projecting members preferably have an overall dimension in the third direction which is considerably less than the corresponding dimension of the aperture.
The overall dimension of the projecting members may be 25% to 75% of the corresponding dimension of the aperture.
Preferred embodiments comprise two said projecting members which are spaced apart by a distance sufficient to receive between them a lateral dimension of the first clamping element. Here, the lateral dimension of the first clamping element is the overall dimension d" of the projecting members in the second direction mentioned in the preceding paragraph.
Preferably the second clamping element is elongate with a longer dimension and a shorter dimension, the longer dimension being greater than the extent of the aperture in said second direction perpendicular to said shaft axis and the shorter dimension being substantially equal to said lateral dimension of the first clamping element. This ensures that the areas clamped on each side of the apertured member are approximately the same.
Moreover, it ensures that the projecting members are in a suitable location to hold the first clamping element in its correct position during assembly.
Thus in preferred embodiments the width of the first clamping element, the width of the second clamping element and the overall length of the projecting members are all equal to "d" which is substantially equal to the width of the aperture, but is actually a small amount less to enable the first clamping element to freely pass through the aperture.
The invention also provides a connecting arrangement for connecting two items, using a clamping arrangement according to any preceding claim, wherein one item is attached to the apertured member and the other item is connected to the shaft member.
According to a second aspect of the present invention, there is provided method of attaching a clamping device to an aperture in an apertured member, the clamping device comprising a shaft member having an axis and having fixed therewith a first clamping element which is capable of passing axially through the aperture in a first relative orientation but cannot pass axially through the aperture in a second relative orientation, the shaft member having loosely mounted thereon a second clamping element, and the clamping device further comprising a locking element for the second clamping element, the method comprising the steps of: passing the first clamping element axially through the aperture; rotating the first clamping element relative to the aperture so that it can not pass axially therethrough; moving the second clamping element along the shaft member towards the first clamping element; and engaging the locking element to thereby firmly clamp the apertured member between the first and second clamping elements.
Preferably there is provided a method wherein the second clamping element comprises at least one member projecting axially towards the first clamping element and being of a size to fit in the aperture and wherein, during the passing step and at least part of the rotating step, the projecting member enters the aperture and maintains a spacing between the first and second clamping elements, and wherein during the moving and engaging steps, the projecting member is located clear of the first clamping element so that the second clamping element can move towards the apertured member and the first clamping element.
There may be provided a method wherein the second clamping element comprises two spaced projecting members separated by a distance suitable to receive a lateral dimension of the first clamping element and wherein, during the moving and engaging steps, the projecting members are located one each side of the first clamping element.
Such an arrangement prevents undesired displacements or rotary movements during assembly.
According to a third aspect of the present invention, there is provided a clamping device arranged to be attached to an apertured member and comprising a shaft member having a first clamping element fixed thereto, and a second clamping element mounted on the shaft member, wherein the clamping elements are arranged to be presented to the apertured member from one side thereof, so that the first clamping element can be installed by passing it through the aperture from said side and then rotating it so that the apertured member can be clamped between said first and second clamping elements, characterised in that said second clamping element is loosely mounted on said shaft member and a locking element is provided for urging the second clamping element towards the installed first clamping element to effect said clamping of the apertured member.
A preferred embodiment of the present invention will now be described, by way of example only, with reference to the accompanying drawings of which: Figure 1 shows a side view of a clamping device of an arrangement in accordance with an embodiment of the present invention; Figure 2a and b show front and side views respectively of a first clamping element of the device of Figure 1; Figure 3a, b and c show front, side and top views respectively of a second clamping element of the device of Figure 1; Figure 4 shows a nut of the clamping device of Figure 1; Figure 5 shows a perspective view, before assembly, of a clamping arrangement comprising the clamping device of Figures 1 to 4 and an associated apertured member; and Figure 6 shows a perspective view similar to Figure 5 during assembly of the clamping arrangement.
Such terms as front, rear, upper, lower, inner and outer as used in the present specification are used merely as an aid to explanation, and are not to be understood as imposing any limitation on spatial relationships.
Referring now to the drawings, a clamping device 10, Figure 1, is arranged to be clamped to an elongate aperture 12, Figure 5, in a sheet metal panel 14. There is no access to the rear of the panel. The device comprises a first clamping element 20, a second clamping element 30 and a tightening nut 40.
As shown in Figure 2, the first clamping element 20 comprises an inner plate 22 riveted at its centre to one end of a shaft 24. Plate 22 is elongate with curved ends and has a width "d". The dimension "d" and the shape of plate 22 are selected so that it fits easily through the aperture 12.
Adjacent to the end of shaft 24, a length "a" thereof is threaded. An article or apparatus to be connected to the panel 14 is attached to the other end (not shown) of the shaft 24.
As shown in Figure 3, the second clamping element or outer clamp 30 is made of sheet material and comprises a substantially rectangular plate section 32 with integral side projections in the form of arms 34 bent in a perpendicular direction from opposite central regions of the edges thereof. The width of the plate section 32 is substantially equal to "d", and its length is approximately the same as the length of inner plate 22.
As shown in Figure 3, the height of arms 34 is also equal to "d". A through hole 36 is provided at the centre of plate section 32 with a diameter selected to be a loose fit on shaft 24. Accordingly outer clamp 30 can slide and rotate relative to shaft 24.
Nut 40, Figure 4, is of conventional design and has an internal thread to engage with the external threaded section of shaft 24.
To make the connection, the clamping device 10 is assembled as in Figure 1 and then presented to aperture 12 as shown in Figure 5. In the case of an aperture 12 having its longitudinal axis disposed horizontally, inner plate 22 is moved up to and through the aperture also with its longitudinal axis disposed substantially horizontally so that it just fits through the aperture.
During this process, the longitudinal axis of plate section 32 is disposed substantially vertically, so that its arms 34 enter and remain in the aperture.
Shaft 24 is then rotated through substantially 90° so that inner plate 22, which is now behind the panel 14, rotates to a position with its longitudinal axis in a substantially vertical disposition. During this process, any tendency for the outer clamp 30 to rotate is prevented by the upper and lower edges of respective arms 34 engaging the longitudinal edges of aperture 12.
Nut 40 is now tightened on the threaded portion of shaft 24. During this process, plate 22 and plate section 32 are drawn towards each other, with plate 22 passing between the arms 34 of the outer clamp. Also, the arms 34 continue to locate the outer clamp 30 and in particular prevent any rotation thereof. When the nut is fully tightened, plate 22 and plate section 32 are generally co-extensive on opposite sides of and firmly clamping the panel 14.
The clamping arrangement provides a robust way of connecting any two items together and can thus be used in physically-challenging environments such as those subject to mechanical loads, vibrations or wide ranges of temperatures.
Preferred applications are in, or in association with, automotive engines; one preferred use is to connect an exhaust hanger bar to a panel in an automotive exhaust system.
The above-described arrangement has numerous advantages. In particular, it provides a robust clamping arrangement which can be assembled from one side only of the panel 14. Furthermore, it provides a secure connection without any play. The threaded connection of the nut 40 with shaft 24 is such that of cannot be loosened by vibrations. In addition, should there by any undesired axial displacement of plate section 32 during or after assembly, there is still no risk of relative rotation of the outer clamp 30 since arms 34 extend through and well beyond the plane of the panel 14.
Furthermore, arms 34 maintain inner plate 22 in its desired orientation throughout the tightening procedure.
Thus correct relative positioning of plate 22 and plate section 32 is automatically maintained throughout the clamping procedure.
Although, as stated above, a secure connection results, the components are freely moveable throughout assembly until the final tightening procedure, which allows them to be easily moved and independently positioned. For example, when partially but not completely tightened, the arrangement can be moved to any desired location along the aperture 12.
The arrangement provides a simple, self-contained and low-cost way of clamping components without requiring additional components such as weld nuts. It is suitable for panels which are too thin for a satisfactory thread.
The arrangement can be easily disassembled if required by reversing the assembly process. In addition only a shallow space is required behind the mounting panel. Only a single rotary movement of a clamping element is required.
Various modifications can be made to the above-described embodiment. In particular, the shapes and dimensions of the various components are widely variable without interfering with their mode of functioning. For example, plate section 32 could have a circular or any other suitable cross-section when viewed axially. The relationship between plate 22 and aperture 12 is such that the plate can pass through the aperture in one relative rotational position but not in another. Thus they can both be square, in which case a 450 relative rotation would be appropriate after plate 22 had been axially passed through aperture 12. Other combinations of shapes of plate 22 and aperture 12 may be selected, provided that plate 22 passes through aperture 12 in at least one relative disposition. Other angles of relative rotation are possible.
If appropriate to the application, the shaft 24 may be threaded throughout its length. This also allows the nut 40 and plate 32 to be fitted to the shaft 24 after the plate 22 is affixed.
The plate 22 may be welded to shaft 24 or attached fixedly thereto in some other way. Alternatively it may be made integral with the shaft. In a further modification, plate 22 may be arranged moveable on shaft 24, but some driving connection arrangement between the two would be required so that plate 22 could be readily rotated behind panel 14.
Other arrangements than a threaded connection may be used to urge and secure the clamping elements. For example, the shaft 24 may be unthreaded and nut 40 replaced by an element which frictionally grips the shaft. Alternatively, one or more securing elements may be incorporated in outer clamp 30 itself; for example it may be formed with suitable connectors e.g. snap connectors, which engage axially with corresponding connectors on the facing surface of panel 14 and/or on the facing surface of the inner sheet 22.
In another modification, the second clamping element is provided with one or more through holes and the panel and/or the first clamping element is/are provided with one or more holes that are designed therewith in the final configuration of the clamping arrangement; one or more threaded bolt members can then be passed through the holes and tightened axially to secure the components together. Such an arrangement is more time-consuming and more complicated to fasten than nut 40, it requires more components and is not as secure as nut 40 and threaded shaft 24.
If desired aperture 12 could be made shorter and/or arms 34 could be made thicker so that they effectively fill the aperture.
The arms 34 can be modified if required to give greater accuracy of location within aperture 12 by the addition of suitable extensions or flanges.
The arms 34 can be replaced or supplemented by other projecting members. For certain purposes, e.g. selectively engaging the first clamping element during assembly, a single projecting member suffices.
The arrangement can be used in any application in which the only possible adaptation to the receiving part is a hole or aperture, and where access to the reverse side is not possible, e.g. to attach a member to a closed box section.
Reference Numerals clamping device 10 aperture 12 panel 14 first clamping element 20 inner plate 22 shaft 24 second clamping element 30 plate section 32 arms 34 hole 36 nut 40

Claims (15)

  1. Claims 1. A clamping arrangement comprising a member (14) having an aperture (12) and a clamping device (10) for attachment to the aperture, the clamping device comprising a shaft member (24) having an axis and having fixed therewith a first clamping element (20) which is capable of passing axially through the aperture in a first relative orientation but cannot pass axially through the aperture in a second relative orientation, the shaft member having loosely mounted thereon a second clamping element (30), and the clamping device further comprising a locking element (40) for the second clamping element, the arrangement being such that, after the first clamping element has been passed axially through the aperture and then rotated so that it cannot axially return through the aperture, the second clamping element can be moved in a first direction towards the first clamping element and the locking element can then be engaged to urge the second clamping element in said first direction so that the apertured member is firmly clamped between the first and second clamping elements.
  2. 2. A clamping arrangement according to claim 1, wherein said shaft member (24) has a thread and said locking element (40) comprises a nut which engages said thread and can be tightened to urge the second clamping element (30) in said first direction.
  3. 3. A clamping arrangement according to claim 1 or 2, wherein one or more projecting members (34) extend from said second clamping element in said direction, the projecting members being arranged to fit within said aperture (12) in second and third directions perpendicular to said shaft axis.
  4. 4. A clamping arrangement according to claim 3, wherein the projecting members (34) have an axial extent greater than the thickness of the apertured member (14)
  5. 5. A clamping arrangement according to claim 3 or 4, wherein the projection members (34) have substantially the same extent as the aperture (12) in a said second direction but a smaller extent in a said third direction which is transverse to said second direction.
  6. 6. A clamping arrangement according to any of claims 3 to 5, wherein, with the second clamping element (30) in its final orientation, the first clamping element (20) in its first relative orientation can not pass, in the axial direction towards the second clamping element, beyond the free end of the or each projection member (34), but in its second relative orientation can do so.
  7. 7. A clamping arrangement according to any of claims 3 to 6 comprising, two said projecting members (34) which are spaced apart by a distance sufficient to receive between them a lateral dimension of the first clamping element (20)
  8. 8. A clamping arrangement according to claim 7 wherein said projecting members (34) have a dimension in said second direction perpendicular to said shaft axis which is substantially equal to said lateral dimension of the first clamping element (20)
  9. 9. A clamping arrangement according to claim 7 or 8, wherein the second clamping element (30) is elongate with a longer dimension and a shorter dimension, the longer dimension being greater than the extent of the aperture (12) in said second direction perpendicular to said shaft axis and the shorter dimension being substantially equal to said lateral dimension of the first clamping element (20)
  10. 10. A method of attaching a clamping device (10) to an aperture (12) in apertured member (14), the clamping device comprising a shaft member (24) having an axis and having fixed therewith a first clamping element (20) which is capable of passing axially through the aperture in a first relative orientation but cannot pass axially through the aperture in a second relative orientation, the shaft member having loosely mounted thereon a second clamping element (30), and the clamping device further comprising a locking element (40) for the second clamping element, the method comprising the steps of: passing the first clamping element axially through the aperture; rotating the first clamping element relative to the aperture so that it can not pass axially therethrough; moving the second clamping element along the shaft member towards the first clamping element; and engaging the locking element to thereby firmly clamp the apertured member between the first and second clamping elements.
  11. 11. A method according to claim 10, wherein the second clamping element (30) comprises at least one member (34) projecting axially towards the first clamping element (20) and being of a size to fit in the aperture (12) and wherein, during the passing step and at least part of the rotating step, the projecting member enters the aperture and maintains a spacing between the first and second clamping elements, and wherein during the moving and engaging steps, the projecting member is located clear of the first clamping element so that the second clamping element can move towards the apertured member (14) and the first clamping element.
  12. 12. A method according to claim 10 or 11, wherein the second clamping element (30) comprises two spaced projecting members (34) separated by a distance suitable to receive a lateral dimension of the first clamping element (20) and wherein, during the moving and engaging steps, the projecting members are located one each side of the first clamping element.
  13. 13. A clamping device (10) arranged to be attached to an apertureci member (14) and comprising a shaft member (24) having a first clamping element (20) fixed thereto, and a second clamping element (30) mounted on the shaft member, wherein the clamping elements are arranged to be presented to the apertured member from one side thereof, so that the first clamping element can be installed by passing it through the aperture (12) from said side and then rotating it so that the apertured member can be clamped between said first and second clamping elements, characterised in that said second clamping element (30) is loosely mounted on said shaft member (24) and a locking element (40) is provided for urging the second clamping element towards the installed first clamping element (20) to effect said clamping of the apertured member.
  14. 14. A clamping device (10) according to claim 13 wherein said shaft member (24) is threaded and said locking element (40) is a nut having a corresponding internal thread.
  15. 15. A clamping device (10) according to claim 13 or 14, wherein the second clamping element (30) has one or more projecting members (34) extending towards the first clamping element.
GB1005209A 2010-03-29 2010-03-29 Clamping device for an elongate aperture Withdrawn GB2479124A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1005209A GB2479124A (en) 2010-03-29 2010-03-29 Clamping device for an elongate aperture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1005209A GB2479124A (en) 2010-03-29 2010-03-29 Clamping device for an elongate aperture

Publications (2)

Publication Number Publication Date
GB201005209D0 GB201005209D0 (en) 2010-05-12
GB2479124A true GB2479124A (en) 2011-10-05

Family

ID=42228488

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1005209A Withdrawn GB2479124A (en) 2010-03-29 2010-03-29 Clamping device for an elongate aperture

Country Status (1)

Country Link
GB (1) GB2479124A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117662588B (en) * 2024-01-31 2024-04-12 唯实重工股份有限公司 Shoveling structure and heading machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4148542A (en) * 1977-10-31 1979-04-10 Alden Research Foundation Panel mounted locking device for components

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4148542A (en) * 1977-10-31 1979-04-10 Alden Research Foundation Panel mounted locking device for components

Also Published As

Publication number Publication date
GB201005209D0 (en) 2010-05-12

Similar Documents

Publication Publication Date Title
US9004417B2 (en) Fastening device
US4907766A (en) Pipe positioning and support system
JP5193393B2 (en) Screw fastener with locking
US20190086028A1 (en) Mounting track for retaining a mount assembly
US8875357B2 (en) Clip
JP6401153B2 (en) Pipe clamp to limit rotation
US20190113072A1 (en) Multi-Directional Mounting Bracket
BR102014023739A2 (en) self-retaining elastic arrangement fit for conjugate components, and method for retaining conjugate components of an instrument trim panel assembly
KR20120005957A (en) Component for a fastening clip and fastening clip
US20130071179A1 (en) Fastening Device for Attachment to a Mounting Rail
US20130118627A1 (en) Tuned response duct clamp
JP5857105B2 (en) Anti-rest bracket fixing part structure
WO2009110098A1 (en) Bolt and nut with anti-loosening mechanism
GB2479124A (en) Clamping device for an elongate aperture
JP5478757B1 (en) Bolt loosening stopper
JP2012087859A (en) Swing preventive metal fitting
US20090232588A1 (en) Fastening Mechanism
JP5606822B2 (en) Bolt fitting
RU2702710C1 (en) Car exhaust pipe mounting fastener
CN211059495U (en) Pipe clamp capable of rotating along with pipeline
US20120307387A1 (en) Mirror housing clamp arrangement
JP6321480B2 (en) Offset type floating nut
JP2019090513A (en) Bolt connecting implement
CN104075270B (en) Lamp and light source mounting structure thereof
RU2757702C2 (en) Fasteners for mounting on the mounting profile

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)