CA1100796A - Blind nuts with resilient split tapered cage - Google Patents
Blind nuts with resilient split tapered cageInfo
- Publication number
- CA1100796A CA1100796A CA267,371A CA267371A CA1100796A CA 1100796 A CA1100796 A CA 1100796A CA 267371 A CA267371 A CA 267371A CA 1100796 A CA1100796 A CA 1100796A
- Authority
- CA
- Canada
- Prior art keywords
- cage
- nut
- cage member
- bore
- shoulder
- 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.)
- Expired
Links
- 238000009434 installation Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
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
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
- F16B37/062—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting
- F16B37/065—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting by deforming the material of the nut
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
- Forging (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A blind nut having a resilient cage in which is positioned a screw threaded nut. The cylindrical bore of the cage within which the nut is held by friction has paral-lel sides and has four V-shaped slots in the wall thereof.
The upper end of the cage has an outwardly extending flange for preventing the passage of the cage through a circular hole in a parent member in which it is adapted to be inserted.
The upper end of the cage has further at its inner periphery a shoulder or a stop, in order to limit the upward movement of the threaded nut along the inner wall of the cage. The lower end of the bore is free to insert the threaded nut therein. The outer periphery of the cage wall is tapered, whereby on the cage being inserted into a hole in a parent member, the four slots are closed and the upper part of the cage bore takes an inwardly tapered formation. On axially moving the threaded nut along the cage by means of a thread-ed member, the cage is distorted to secure it in the parent member.
A blind nut having a resilient cage in which is positioned a screw threaded nut. The cylindrical bore of the cage within which the nut is held by friction has paral-lel sides and has four V-shaped slots in the wall thereof.
The upper end of the cage has an outwardly extending flange for preventing the passage of the cage through a circular hole in a parent member in which it is adapted to be inserted.
The upper end of the cage has further at its inner periphery a shoulder or a stop, in order to limit the upward movement of the threaded nut along the inner wall of the cage. The lower end of the bore is free to insert the threaded nut therein. The outer periphery of the cage wall is tapered, whereby on the cage being inserted into a hole in a parent member, the four slots are closed and the upper part of the cage bore takes an inwardly tapered formation. On axially moving the threaded nut along the cage by means of a thread-ed member, the cage is distorted to secure it in the parent member.
Description
S. N. 267,371 SP~CIFICATION:
The present invention relates to blind nuts of the kind wherein a cage member has located therein a nut member which is adapted to be axially moved along a screw threaded member to distort the cage member to secure it in a parent member.
A blind nut having a circular resilient split tapered cage, in the bore of which is frictionally held a screw threaded nut. The periphery of the cage has provided therein four slots which permit of the cage closing inwardly when inserted into a hole of the parent member to frictionally hold the cage in posi-tion in the parent member, while when a screw threaded member is axially moved along the nut in the direc~ion of the end of the cage carrying the outwardly e~tending flange, the cage is distorted to lock the same and a screw threaded nut in the parent member by the formation of a ridge around the underside of the hole of the parent member.
It is one object of the present invention to provide a simplified and efficient form of blind nut of the kind re-ferred to.
It is another object of the present invention to pro-vide a ~lind nut having a resilient split tapered cage the periphery of which has provided therein four slots to permit a more concentric radial expansion which is achieved upon mov-ing the screw threaded member along the inside wall to distort the plastic or resilient split tapered cage and adding at the same time to the tapered cage easier installationO
110(~796 S N. 267,371 It is still another object of the present invention to provide a blind nut with resilient split tapered cage wherein the latter has an inwardly extending flange or shoulder at the upper end of the cage, in order to prevent the ~hreaded nut from being pulled through the plastic~ concentric tapered cage, which removes an essential drawback found in known de-signs of such blind nuts.
It is yet another object of the present invention to provide a blind nut with resilient split tapered cage and having in particular four slots which offer a more concentric radial expansiorl and the inwardly extending flange or shoulder at the upper end of the cage, which prevents the threaded nut from being pulled through, increases the pull-out force by approximately 100% or moreO
It is still a further object of the present invention to provide a blind nut with resilient split tapered cage wherein the range of torques required to seat the threaded nut and to distort the plastic cage for securely holding the thread-ed nut in position is 30 to 55 in. lbso instead of 13 to 15 inO
lbs. in known designsO
With the above and other objects in view, the present invention, which is shown by example only, will become readily understood in connection with the accornpanying drawings, in which:
FIGU~ 1 is a vertical axial section of a blind nut ! according to the present invention;
~1100796 Fig. 2 is a top plan view of the blind nut shown in the state of FIGURE l;
Fig. 3 is a vertical axial section similar to that shown in FIGURE 1, with the blind nut in a parent member in which it is to be located;
Fig. 4 is a top plan view of the blind nut shown in the state of Fig. 3; and Fig. 5 is a vertical axial section similar to those shown in Figs. 1 and 3 with a second parent member in position and the blind nut secured to the two parent members.
Referring now to the drawings and in particular to the embodiment of the blind nut shown in the accompanying drawings, a cage 1, one end of which is provided with an outwardly extend-ing flange 2 and a cylindrical axial bore 3 The wall of the cage member is provided with four axial-ly disposed V-shaped slots 4.
Mounted in the bore 3 of the cage 1 is a circular nut 5, the periphery of which may be knurled or the like, in known man-ner, to increase the friction between the bore 3 of the cage 1 and the nut 5, which is held by friction in the bore 3~
The upper edge of the nut 5 has preferably a chamfer 6, to facilitate its movement along the bore 3 as more particularly explained below.
The cylindrical axial bore 3 extends to the lower end, so that the nut 5 can be inserted into the bore 3 from the lower end of the cage 1 1~007~6 The outer wall of the cage 1 is formed with a taper 7 extending from under the flange 2 to approximately the height of the circular nut 5, when the latter is located in the lower end of the bore 3 of the cage 1. An inwardly extended shoulder or stop 8 formed at the upper end of the bore 3 prevents the nut 5 passing inadvertently out of the cage 1 in upper direct-ion.
In use one parent member 9 has formed therein a hole lO
which is equivalent ~o a size to take the lower parallel walled end of the cage 1, in which a circular nut 5 is secured by friction. The cage 1 is then pressed home into the hole 10 which causes the taper 7 of the cage 1 to close in and reduce the bore 3 of the cage 1, which is possible owing to the four V-shaped slots 4 formed therein and securely hold the cage 1 and the nut 5 in position, ready for assembly, The second parent member 11 is then placed in position and a fastening screw or a threaded bolt 12 screwed into the nut 5. The head of the threaded bolt 12 abutting the second parent member 11 causes the nut 5 to travel along the threaded bolt 12 in order to distort the cage 1. The shoulder or stop 8 prevents the nut 5 from being pulled through the cage 1 and forms a ridge 13 around the underside of the hole 10 of the first parent member 9 preventing the withdrawal of the cage 1 and at the same time securing the second parent member 11 in position.
llOU796 While I have disclosed one embodiment of the present invention, it is to be understood that this embodiment is given by example only and not in a limiting sense while bring-ing about the advantages over known blind nuts with a re-siliently split tapered cage.
The present invention relates to blind nuts of the kind wherein a cage member has located therein a nut member which is adapted to be axially moved along a screw threaded member to distort the cage member to secure it in a parent member.
A blind nut having a circular resilient split tapered cage, in the bore of which is frictionally held a screw threaded nut. The periphery of the cage has provided therein four slots which permit of the cage closing inwardly when inserted into a hole of the parent member to frictionally hold the cage in posi-tion in the parent member, while when a screw threaded member is axially moved along the nut in the direc~ion of the end of the cage carrying the outwardly e~tending flange, the cage is distorted to lock the same and a screw threaded nut in the parent member by the formation of a ridge around the underside of the hole of the parent member.
It is one object of the present invention to provide a simplified and efficient form of blind nut of the kind re-ferred to.
It is another object of the present invention to pro-vide a ~lind nut having a resilient split tapered cage the periphery of which has provided therein four slots to permit a more concentric radial expansion which is achieved upon mov-ing the screw threaded member along the inside wall to distort the plastic or resilient split tapered cage and adding at the same time to the tapered cage easier installationO
110(~796 S N. 267,371 It is still another object of the present invention to provide a blind nut with resilient split tapered cage wherein the latter has an inwardly extending flange or shoulder at the upper end of the cage, in order to prevent the ~hreaded nut from being pulled through the plastic~ concentric tapered cage, which removes an essential drawback found in known de-signs of such blind nuts.
It is yet another object of the present invention to provide a blind nut with resilient split tapered cage and having in particular four slots which offer a more concentric radial expansiorl and the inwardly extending flange or shoulder at the upper end of the cage, which prevents the threaded nut from being pulled through, increases the pull-out force by approximately 100% or moreO
It is still a further object of the present invention to provide a blind nut with resilient split tapered cage wherein the range of torques required to seat the threaded nut and to distort the plastic cage for securely holding the thread-ed nut in position is 30 to 55 in. lbso instead of 13 to 15 inO
lbs. in known designsO
With the above and other objects in view, the present invention, which is shown by example only, will become readily understood in connection with the accornpanying drawings, in which:
FIGU~ 1 is a vertical axial section of a blind nut ! according to the present invention;
~1100796 Fig. 2 is a top plan view of the blind nut shown in the state of FIGURE l;
Fig. 3 is a vertical axial section similar to that shown in FIGURE 1, with the blind nut in a parent member in which it is to be located;
Fig. 4 is a top plan view of the blind nut shown in the state of Fig. 3; and Fig. 5 is a vertical axial section similar to those shown in Figs. 1 and 3 with a second parent member in position and the blind nut secured to the two parent members.
Referring now to the drawings and in particular to the embodiment of the blind nut shown in the accompanying drawings, a cage 1, one end of which is provided with an outwardly extend-ing flange 2 and a cylindrical axial bore 3 The wall of the cage member is provided with four axial-ly disposed V-shaped slots 4.
Mounted in the bore 3 of the cage 1 is a circular nut 5, the periphery of which may be knurled or the like, in known man-ner, to increase the friction between the bore 3 of the cage 1 and the nut 5, which is held by friction in the bore 3~
The upper edge of the nut 5 has preferably a chamfer 6, to facilitate its movement along the bore 3 as more particularly explained below.
The cylindrical axial bore 3 extends to the lower end, so that the nut 5 can be inserted into the bore 3 from the lower end of the cage 1 1~007~6 The outer wall of the cage 1 is formed with a taper 7 extending from under the flange 2 to approximately the height of the circular nut 5, when the latter is located in the lower end of the bore 3 of the cage 1. An inwardly extended shoulder or stop 8 formed at the upper end of the bore 3 prevents the nut 5 passing inadvertently out of the cage 1 in upper direct-ion.
In use one parent member 9 has formed therein a hole lO
which is equivalent ~o a size to take the lower parallel walled end of the cage 1, in which a circular nut 5 is secured by friction. The cage 1 is then pressed home into the hole 10 which causes the taper 7 of the cage 1 to close in and reduce the bore 3 of the cage 1, which is possible owing to the four V-shaped slots 4 formed therein and securely hold the cage 1 and the nut 5 in position, ready for assembly, The second parent member 11 is then placed in position and a fastening screw or a threaded bolt 12 screwed into the nut 5. The head of the threaded bolt 12 abutting the second parent member 11 causes the nut 5 to travel along the threaded bolt 12 in order to distort the cage 1. The shoulder or stop 8 prevents the nut 5 from being pulled through the cage 1 and forms a ridge 13 around the underside of the hole 10 of the first parent member 9 preventing the withdrawal of the cage 1 and at the same time securing the second parent member 11 in position.
llOU796 While I have disclosed one embodiment of the present invention, it is to be understood that this embodiment is given by example only and not in a limiting sense while bring-ing about the advantages over known blind nuts with a re-siliently split tapered cage.
Claims (2)
- THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE PROPERTY OR PRIVILEGE
IS CLAIMED ARE DEFINED AS FOLLOWS:
l. A blind nut, comprising a cylindrical, resilient cage member having an axial cylindrical bore and an outwardly extending flange at one end thereof for preventing the passage of said cage member completely through a circular hole in a parent member in which it is adapted to be inserted, a plurality of V-shaped slots formed in the cage member and extending longitudinally from its said one end part way to an opposite end of the cage member, the axial cylindrical bore being diametrically reduced at said one end of the cage member and defining a radially inwardly directed internal shoulder adjacent said one end with the shoulder having an annular, flat surface contained in a plane parallel to the plane of said flange with the shoulder being disposed between said flange and said opposite end of the cage member, a tapered portion formed on the outer periphery of said cage member and having a maximum diametrical dimension located under said outwardly extending flange and being of a diameter greater than the diameter of said circular hole to frictionally hold said cage member in position in said circular hole in said parent member, the positioning of said cage member in said circular hole causing said tapered portion to be reduced in diameter through a closing of said V slots thereby also reducing the size of said bore in said cage member adjacent its said one end; and a threaded nut having an annular flat shoulder, said nut being frictionally held in position in said bore of said cage member with its flat shoulder facing said annular flat surface, said threaded nut in use advancing along a fastening screw threaded through said nut until contact occurs between said flat shoulder and said annular flat surface, advancement of the nut causing said cage member to be distorted by engagement between the nut and the cage member surrounding the bore and ultimately when said contact is made, forming a ridge around the underside of said parent member surrounding said circular hole to prevent the withdrawal of the cage member therefrom, the cage member on installation being disposed with said annular flat surface being located approximately in the same plane as the underside of said parent member thereby to provide both positive limitation to said distortion of the cage member and increased resistance to tear by the parent member. - 2. The nut of claim 1 wherein there are at least four V-shaped slots.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US69132376A | 1976-06-01 | 1976-06-01 | |
| US691,323 | 1976-06-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1100796A true CA1100796A (en) | 1981-05-12 |
Family
ID=24776072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA267,371A Expired CA1100796A (en) | 1976-06-01 | 1976-12-07 | Blind nuts with resilient split tapered cage |
Country Status (6)
| Country | Link |
|---|---|
| CA (1) | CA1100796A (en) |
| DE (1) | DE2657222C3 (en) |
| ES (1) | ES224954Y (en) |
| FR (1) | FR2353745A1 (en) |
| GB (1) | GB1561228A (en) |
| IT (1) | IT1077515B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3539505A1 (en) * | 1985-11-07 | 1987-05-14 | Mannesmann Ag | CONNECTION FOR SINGLE-WALLED, LEVEL, WALL, CEILING OR FLOOR PARTS |
| DE29614146U1 (en) * | 1996-08-16 | 1997-12-11 | ELEK GmbH, 41470 Neuss | Fastening for control cabinet cladding |
| EP3179561A1 (en) * | 2015-12-09 | 2017-06-14 | Dubuis et Cie | Device for fixing an electrical connection terminal to a substrate |
| EP3211720A1 (en) * | 2016-02-29 | 2017-08-30 | Dubuis et Cie | Earthing bond seal |
| DE102018207226A1 (en) | 2018-05-09 | 2019-11-14 | Volkswagen Aktiengesellschaft | Device for contact screwing, electrical machine with device for contact screwing and contact screwing |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB536476A (en) * | 1940-02-28 | 1941-05-15 | Dunlop Rubber Co | Improvements in or relating to tubular rivets, nuts, or like fastenings |
| BE535925A (en) * | 1954-02-23 | |||
| GB1095402A (en) * | 1964-02-17 | |||
| GB1158907A (en) * | 1965-11-30 | 1969-07-23 | Avdel Ltd | Blind Hole Anchor Nut Fastener Device |
| GB1164371A (en) * | 1966-03-31 | 1969-09-17 | Vsi Corp | Improvements in Blind Fasteners. |
| FR1522481A (en) * | 1967-03-09 | 1968-04-26 | Improvements to devices for fixing to walls or the like accessible from one side only | |
| FR1541433A (en) * | 1967-06-21 | 1968-10-04 | Acorn cage nut | |
| FR1560445A (en) * | 1968-01-15 | 1969-03-21 | ||
| CA951552A (en) * | 1970-03-02 | 1974-07-23 | Alan Martin | Threaded blind fastener |
-
1976
- 1976-12-06 ES ES1976224954U patent/ES224954Y/en not_active Expired
- 1976-12-07 CA CA267,371A patent/CA1100796A/en not_active Expired
- 1976-12-17 DE DE19762657222 patent/DE2657222C3/en not_active Expired
- 1976-12-30 FR FR7639608A patent/FR2353745A1/en active Granted
-
1977
- 1977-02-18 GB GB682877A patent/GB1561228A/en not_active Expired
- 1977-02-25 IT IT2068777A patent/IT1077515B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| ES224954U (en) | 1977-02-16 |
| DE2657222C3 (en) | 1980-05-14 |
| DE2657222A1 (en) | 1977-12-15 |
| FR2353745A1 (en) | 1977-12-30 |
| IT1077515B (en) | 1985-05-04 |
| DE2657222B2 (en) | 1979-08-30 |
| GB1561228A (en) | 1980-02-13 |
| FR2353745B1 (en) | 1982-10-29 |
| ES224954Y (en) | 1977-06-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |