US3070382A - Combined handle and ejector - Google Patents

Combined handle and ejector Download PDF

Info

Publication number
US3070382A
US3070382A US88750A US8875061A US3070382A US 3070382 A US3070382 A US 3070382A US 88750 A US88750 A US 88750A US 8875061 A US8875061 A US 8875061A US 3070382 A US3070382 A US 3070382A
Authority
US
United States
Prior art keywords
chuck
shell
handle
socket
passageway
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 - Lifetime
Application number
US88750A
Other languages
English (en)
Inventor
Richard E Dieterich
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.)
Phillips Drill Co Inc
Original Assignee
Phillips Drill Co Inc
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
Priority to NL274166D priority Critical patent/NL274166A/xx
Application filed by Phillips Drill Co Inc filed Critical Phillips Drill Co Inc
Priority to US88750A priority patent/US3070382A/en
Priority to GB1603/62A priority patent/GB984458A/en
Priority to DE19621427740 priority patent/DE1427740A1/de
Application granted granted Critical
Publication of US3070382A publication Critical patent/US3070382A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/117—Retention by friction only, e.g. using springs, resilient sleeves, tapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/06—Features relating to the removal of tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/06—Features relating to the removal of tools; Accessories therefor
    • B23B31/07—Ejector wedges
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17042—Lost motion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17957—Friction grip
    • Y10T279/17965—Drill type

Definitions

  • This invention relates generally to apparatus for installing self-drilling concrete fasteners and more particularly, is concerned with an improved combined handle and ejector apparatus for use with a percussive hammer to drive such shells into concrete, masonry or the like.
  • a shell of this construction comprises an elongate cylindrical steel member with a hollow center that is internally screw-threaded to receive a bolt or the like. At the end of the member which is inserted into the concrete or masonry there are provided hardened cutting teeth, annular broaching grooves and axially extending elongate grooves. At its opposite end there is provided a relatively short, conically tapered portion separated yfrom the remainder of the shell by an annular fracture groove.
  • the tapered end of the shell is inserted into the tool holder or chuck, as it is konwn, and the chuck is mounted on a percussive hammer.
  • a handle is secured to the chuck so that as the blows are being struck by the hammer, the handle can be swung back and forth in order to facilitate the cutting of a smooth hole.
  • the mounting of the chuck to the percussive hammer is such as to permit such swinging thereof.
  • the cuttings nd ytheir way up through the shell into the hollow bore of the chuck and out through suitable passageways usually formed transversely of the chuck.
  • the shell After the shell has been drilled to the desired depth, it is removed from the hole, the hole is blown out so that it is clean, a short tapered plug is inserted in the toothed end of the shell, the shell with plug then is inserted into the hole and driven home by blows of the percussive hammer made without rotating the chuck and shell. As this occurs, the toothed end of the shell splits along the axial grooves spreading said toothed end in the bottom of the hole and securely and permanently holding the shell in piace. Thereafter, with a sharp lateral blow, the tapered end of the shell is broken off at the fractured groove and this short piece remains in the chuck.
  • the above described procedure which has heretofore been necessary because of the construction of the apparatus used to install the shell, includes the step of manipulating an ejector key in order to rid the chuck of the broken of shell end for each shell installed.
  • the invention herein inter alia comprises an improvernent upon the combined handle and ejector above described.
  • the principal object of the invention is to provide the improved combined handle and ejector apparatus in which the relief passageway for cuttings passing up through the shell and into the chuck and out of the chuck will be substantially unobstructed.
  • Still a further object of the invention is to provide a combined handle and ejector apparatus for use with concrete fastener installing devices in which the handle is provided ⁇ with removable tips that engage in a transverse passageway of the chuck and which tips are readily assembled to or disassembled from the handle and hence are easily replaced.
  • FIG. l is a perspective view showing generally a percussive hammer with a chuck being used to install a concrete fastener and having a combined handle and ejector apparatus embodying the invention associated with the chuck.
  • FIG. 2 is an enlarged fragmentary side elevational view of the apparatus shown in FIG. 1 with portions in section to show certain details thereof.
  • FIG. 3 is an elevational view with portions shown in section to illustrate the manner in which a shell end is ejected by rotating the handle, the view being taken from the left side of FIG. 2 looking toward the chuck.
  • FIG. 4 is a median sectional view on an enlarged scale showing the construction of the combined handle and ejector apparatus of FiGS. 1, 2 and 3.
  • FIG. 5 is a sectional view taken generally along the line 5 5 of FIG. 4 and in the direction indicated with portions shown in elevation, and illustrating also a modied form of the invention.
  • FIG. 6 is a fragmentary sectional view similar to that of FIG. 4 but illustrating the manner in which the handle is rotated in order to cam the severed tapered end of the concrete fastener or shell out of the chuck socket.
  • FIG. 7 is a perspective view of a handle tip showing the construction of the camming extension.
  • FIG. 8 is a fragmentary bottom plan view of a chuck and the ends of a handle of modified construction, the broken lines illustrating the manner in which the handle is disassociated from the chuck.
  • FIG. 9 is a View similar to that of FiG. 8 but illustrating a further modified form of the invention, one of the tips of the particular handle being illustrated in exploded relationship, and the view including an illustration of the manner in which the handle may be manipulated readily to disassociate the saine from the chuck.
  • FIG. l is a perspective View of the combined handle and ejector apparatus of the construction of the invention shown associated with a chuck the construction of which is substantially different rom those illustrated previously.
  • FIG. l l is a median sectional view with portions shown in elevation of a chuck of unusual construction made postsible through the use of the invention.
  • FIG. l2 is a top plan view of a one piece handle without tips of construction suitable for use with any of the tips illustrated.
  • the primary attributes of the invention relate to a construction which enables the passageway for cuttings through the chuck to be substantially unobstructed and a construction in which the camming means provided for ejecting the shell ends from the chucks is formed on tips readily removable from the body of the handle.
  • Such removability enables the tips to be formed of more durable steel; enables the tips to be formed independently of the body of the handle; enables the tips to be readily replaced when worn or damaged.
  • the invention is exemplified in a handle formed by a forked or bifurcated member having a caminng extension at each forked end extending into a transverse passageway in thc chuck.
  • the socket formed in the end of the chuck is arranged so that when a shell is seated in the socket, the end of the shell will intersect the transverse passageway.
  • the camming tips have flattened portions facing the end of the shell when the handle is in position to enable the same to be manipulated by the user in swinging the chuck back and forth during the drilling of the hole.
  • FIG. 1 there is illustrated what may be generally designated a percussive hammer Ztl which delivers repeated axial blows to a chuck designated generally 22 secured in the operating end of the percussive hammer 20.
  • the Workman holds the percussive hammer Ztl with one hand as shown at 24- so that the concrete fastener or shell 26 is engaged against the surface into which it is desired to install the same. With his other hand 28, the workman grasps the handle designated generally 3l) that is connected to the chuck 22.
  • the hammer 2t? is delivering its percussive blows, the workman swings his arm 23 back and forth around the axis of the chuck, that is, the vertical axis as viewed in FIG.
  • the invention primarily is concerned with the construction of the handle 3@ having the socalled tips 34 which are secured on the respective ends of the handle in a manner which will be discussed.
  • the invention also l concerns the combination of such handle with a chuck. 'Ihe construction of the various other apparatus will provide a better understanding of the invention if detailed at this point.
  • an adapter 43 provides a connection between the percussive hammer 20 and a chuck 22.
  • the adapter ttl has a shank 50 which may be of any desired configuration to fit any desired make and model of percussive hammer.
  • the bottom end of the adapter 48 is provided with a conically tapered end formation S2 which engages in the socket 44, being limited in its inward movement by a flange 54 integral with the adapter
  • the key and groove arrangement shown at 56 permits rotation of the adapter t3 while the handle 30 is being swung back and forth.
  • Member 53 is a protective rubber dust cap.
  • the transverse passageway 46 is for the purpose of separating the adapter 158 from the chuck 22 and the said passageway 46 can receive therein a rod or key having a flattened side which may be rotated to force ejection of the tapered end S2.
  • the bottom end of the bore 3S opens to a tapered axial socket 6) which is constructed to receive the tapered end 62 of the shell 26 in mating engagement therewith.
  • a transverse passageway 64 is intersected by the tapered socket 6 so that when the tapered end 62 of the shell 26 is engaged in socket 6d, the upper end face 66 of the said ⁇ tapered end 62 will protrude into said passageway 64.
  • the handle 3G is associated with the chuck 2-2 in such a manner that the handle Eil may be used to swing the chuck 22 about its axis, and the handle itself may be rotated about an axis transverse of the chuck 22. rThe latter axis is also the axis of the transverse passageway 64.
  • the handle 30 preferably is formed of a single wire member the plan configuration of which is shown in FIG. l2 and the side elevational configuration of which is shown in FIG. 2.
  • the handle 3u has a bight or loop 67 which is adapted to be grasped by the workman and a forked or bifurcatcd end providing the arms 63 which are threaded at their extremities 70.
  • the arms 68 and the bight 67 are connected by an oblique portion 72 which enables facile manipulation of the apparatus.
  • Each of the extremities 72 has a tip 34 engaged thereon.
  • the tips are identical except that in certain instances they will be formed as right and left members and hence a description of one will suffice.
  • the best View for an explanation of the structure of the tip 34 is FIG. 7.
  • the body portion 74 which is threaded at 76 to provide a socket for the reception of the extremity 70 of one of the arms 5S.
  • the body portion 74 has a smaller cylindrical extension 73 the axis of which is normal to the axis of the threaded socket 76 and the extension 7S is provided with a flattened ⁇ surface Si) which is preferably ground or otherwise formed by removing metal from a segment of the cylindrical extension 78. It is desired that the portion of the extension '78 remaining be as sturdy as possible andhence only sufficient material is removed in forming the surface 8G to assure ejection of the shell end 62 in a manner which will be described.
  • end face 822 of the extension 78 is planar but in the structure shown in FIG. 5, the ends 82 are shown to be concave or arcuate, in order to provide a better passage for the debris.
  • each of the tips 34 is engaged upon the threaded 'extremity 70 of its respective arm 68 in such a manner that the cylindrical extensions 7S are coaxially aligne-d. ln this condition the said coaxial extensions 78 are engaged in the opposite ends of the transverse passageway 64 so that the flat surfaces 89 face downwardly, that is, face toward the entrance way of the tapered socket 60. While so disposed, the tips 34 cannot rotate relative to the respective arms 63, and hence there is no need for the tips 34 t-o be tightly engaged upon the said respective arms. In this disposition, the handle 3) extends substantially horizontally, that is, at a right angle relative to the axis o-f the chuck 22, as best shown in FIGS.
  • the shell 26 is hollow and hence it has a central bore 83 by way of which the cuttings rise or are drawn up into the central bore 33.
  • the body portion ofthe shell 26 is threaded as indicated at 254.
  • the iirst phase consists of causing the shell to drill its own hole in the manner illustrated in FIG. 1.
  • the rst phase of installation includes the rocking or swinging of the handle 36 back and forth in a horizontal plane, as viewed in FIGS. 1, 2 and 4, at which time the disposition of camming extensions 7S and the flat surfaces 80 are as shown. It will be seen that there is clearance between the free end 66 of the tapered portion 62 of the shell 26 and the said flat surfaces Si). After the hole has been drilled and the plug inserted into the toothed end and the shell has been set permanently in the masonry or concrete 86 as shown in FIG.
  • the tapered end 62 is broken off by a sharp lateral strain applied by bending the entire assembly of hammer 2t) and chuck 22.
  • the fracture occurs at the groove 83 so that the chuck 22 is now left with a short broken off end 62 tightly engaged in the tapered socket 6d.
  • the workman now rotates the handle 3d in a direction indicated by the arcuate arrow L in FIG. 4. rlhis rotation causes the camming extensions 78 to rotate a few degrees, usually about 45 being sulicient depending upon the segment cut out in forming the flat surfaces 80. As shown in FIG.
  • the tips 34 are readily removable from the arms 68 of the handle Elli. Since these tips will be subjected to the abrasion of passing debris as well as to forces exerted in camming the shell ends out of the chuck, they may be forged or otherwise fabricated of tough steel, for example, and/or hardened.
  • the handle 36 economically is fabricated from cold rolled steel and need not be hardened.
  • it will be necessary to spread the bifurcations or arms 68 to withdraw the cam extensions 78 from the transverse passageway 64 of the chuck. This process however is simplified by reason of the ready removability of the tips and the fact that they may be engaged loosely on the threaded extremities 70.
  • the reference character 22 designates any chuck construction having the transverse passageway 64 adapted to receive the cam extension 78 of the respective tips 34.
  • the upper illustrated one of the tips is shown removed from the passageway 64 and unscrewed from the extremity '76.
  • the tip 34 will still remain in position on the extremity 7
  • a lateral movement of the handle 38 will withdraw the other tip 34 from the opposite end of the passageway 64. This provides a very convenient and very simple manner of removing the handle from the chuck 22.
  • FIG. 9 also illustrates another feature of the invention in which the body 74 of the tips 34 has the threaded opening 76 extending completely through the same. It will be noted that in the tips previously described the opening 76 forms a closed-end socket.
  • tips 34 of FiG. 9 are readily reversible and hence need not be made right and left.
  • One configuration of tip will t either of the extremities lil and be engageable into the passageway 64 to presentits flat surface 8@ in the proper direction.
  • FIG. 8 illustrates a simple construction for the combined handle and ejector key in which the handle has the extremities 70' of its arms 63 bent inwardly.
  • the extremities '7d' are provided on the ends thereof with the same general configuration as the camming extensions 78, thereby providing the Hat surfaces 80' and the camming edges Sil to be used in ejecting shells.
  • the handle and the extremities 70 are all formed integrally and the extremities 70 may be hardened after formation. This provides a more economical structure although the advantages of tip replacement and the previously described manner of disassembly and assembly are not available. For example, in removing this handle from the chuck 2, it is necessary to spread the handle an amount sufficient to clear the chuck on both sides as shown by the broken line portions of the view.
  • FIG. l there is illustrated a simple chuck 22 i which there is a central bore 3S which connects with a tapered socket 6l? intended to receive a shell therein.
  • the debris is intended to move up the bore 38 and out through a second transverse passageway 9d which is formed in the chuck 22.
  • This passageway 9@ is the same in function as the passageway 46 of FIG. 4 with the exception that instead of the body 36 of the chuck 22 being solid, there is an extension of the central bore 3@ which connects with the transverse passageway M so that the debris will be ejected as the device is being used.
  • l-D may be of any of the constructions described, and the chuck 22 may be mounted to the percussive hammer 26 either by virtue of an adapter 48 or by virtue of an integral extension of the chuck 22. In other respects the arrangement is similar to those described.
  • FIG. l1 there is illustrated a chuck 22 in which the body 36 has the transverse passageway 64 which is adapted to seat the cam extensions 78 of the tips 34 of the handle 36.
  • the tapered socket 6i) is provided in the bottom of the chuck and there is another transverse passageway designated 92 formed at the body 36 crosswise of and intersecting the passageway 6d.
  • any simple means of securing the chuck to the percussive hammer 2d can be used.
  • a shank or adapter d3 which is not provided with a tapered end but seats in a cylindrical socket 94 formed in the upper end of chuck 22.
  • Slots 96 are cut in the chuck on opposite side thereof to enable a horseshoe shaped collar or ring 9S to be accommodated.
  • the adapter will have a groove cut in its end so that the ring 9?; may be snapped into the groove to hold the shank or adapter di', in place.
  • the handle 30 may be shorter and formed with a right angle bend adjacent the extremities 7G so that the handle extends parallel with the axis of the chuck.
  • Such a construction is for use where the percussive hammer itself provides the necessary oscillating movement of the chuck during the driving of the shell. ln such case the handle is only for the purpose of being grasped and pulled downwardly in order to eject a broken off shell end.
  • a suitable spring clip on the chuck easily may be provided to keep the handle in its vertical position while the shell is being inserted.
  • a combined handle and ejector adapted to be associated with a chuck used in installing a self-drilling shell having a tapered end and in which the chuck has a tapered socket at one end thereof adapted to receive the tapered end of the shell and a transverse passageway intersecting the tapered socket so as to enable the shell end to protrude into the transverse passageway when same is installed in the tapered socket, and a second passageway to provide egress for cuttings as they pass through the shell during installation thereof, said combined handle and ejector comprising a bifurcated member providing a pair of extremities adapted to straddle the chuck, means provided on the said extremities adapted to be engaged in the opposite ends of the transverse passageway but spaced apart within the tapered socket to permit debris to freely pass to the said second passageway, camming surfaces on the said spaced means normally clearing the end of a shell inserted in said tapered socket, but engageable with the end of said shell by rotation of said handle about the axis of said
  • said means comprise at least one tip member having a body portion, said body portion having a socket for removable mating engagement of an extremity therein, said body portion having a reduced dimension extension transverse to the axis of said socket, said camming surface being provided on said extension.
  • a chuck for a percussive hammer and adapted to mount a self-drilling expansion shell said chuck comprising a substantially cylindrical body having a coaxial socket at one end thereof adapted to receive said shell frictionally engaged therein, a first transverse passageway having its axis substantially perpendicular to the axis of said socket and intersecting said socket so that said shell end when engaged protrudes into the passageway, a relief passageway communicating with said socket for discharging debris entering said chuck body through the shell, and a combined handle and ejector apparatus mounted on the chuck body for rotating the chuck and ejecting the shell end, said apparatus comprising a forked member having a pair of extremities on opposite sides of the chuck body and camming means on each extremity movably engaged in the transverse passageway, said camming means being spaced apart on the interior of said transverse passageway to permit discharge of debris through said relief passageway and aligned with said smell end for selectively ejecting
  • a chuck for a percussive hammer and adapted to mount a self-drilling expansion shell said chuck comprising a substantially cylindrical body having a coaxial tapered socket at one end thereof adapted to receive said shell frictionally engaged therein, a first transverse passageway having its axis substantially perpendicular to the axis of said socket and intersecting said socket so that said shell end when engaged protrudes into the passageway, a relief passageway communicating with said socket for discharging debris entering said chuck body through the shell, and a combined handle and ejec- -tor apparatus mounted on the chuck body for rotating the chuck and ejecting the shell end, said apparatus comprising, a forked member having a pair of extremities on oppositesides of the chuck body and camming means on each extremity movably engaged in the transverse passageway, said camming means being spaced apart on the interior of said tapered socket to permit discharge of debris through said relief passageway and aligned with said shell end for
  • a chuck for a percussive hammer and adapted to mount a self-drilling expansion shell said chuck comprising a substantially cylindrical body having a coaxial tapered socket at one end thereof adapted to receive said shell frictionally engaged therein, a first transverse passageway having its axis substantially perpendicular to the axis of said socket and intersecting said socket so that said shell end when engaged protrudes into the passageway, a relief passageway communicating with said socket for discharging debris entering said chuck body through the shell, and a combined handle and ejector apparatus mounted on the chuck body for rotating the chuck and ejecting the shell end, said apparatus comprising, a forked member having a pair of extremities on opposite sides of the chuck body and camming means on each extremity movably engaged in the transverse passageway, said camming means being spaced apart on the interior of said tapered socket to permit discharge of debris through said relief passageway and aligned with said shell end for selectively ejecting
  • a chuck for a percussive hammer and adapted to mount a self-drilling expansion shell said chuck comprising a substantially cylindrical body having a coaxial ytapered socket at one end thereof adapted to receive said shell frictionally engaged therein, -a irst transverse passageway having its axis substantially perpendicular to the axis of said socket and intersecting said socket so that said shell end ⁇ when engaged protru-des into the passageway, a relief passageway communicating wi-th said socket for discharging deb-ris entering said chuck body lthrough the shell, and la combined handle and ejector apparatus mounted on Ithe chuck body for rotating the chuck and ejecting the shell end, said apparatus comprising, a forked member having a pair of extremities on opposite sides of the chuck body and camming means on each extremity movably engaged in the transverse passageway, and extending into the socket, said camming means being spaced apart on the interior of said tapered socket
  • said camming means comprising tip members removably secured on said extremities and rotatively joumalled in opposite ends of said transverse passageway.
  • each tip member includes a cylindrical body portion and a substantially cylindrical extension protruding from an end face of said body portion, said extension having a attened ⁇ surface and a rounded surface intersecting one with the other to provide said camming means.
  • a chuck for a percussive hammer and adapted to mount a self-drilling expansion shell said chuck comprising a substantially cylindrical body having a coaxial socket at one end thereof adapted to receive said shell frictionally engaged therein, a first transverse passageway having its axis substantially perpendicular to the axis of said socket and intersecting said socket so that said shell end when engaged protrudes into the passageway, a relief passageway communicating with said socket for discharging debris entering said chuck body through the shell, and a combined handle and ejector apparatus mounted on the chuck body for rotating the chuck and ejecting the shell end, said apparatus comprising, a forked member having a pair of extremities on opposite sides of the chuck body and camming means on each extremity movably engaged in the transverse passageway, said camming means being spaced apart on the interior of said transverse passageway partially within the socket to permit discharge of debris through said relief passageway and aligned with said shell end for selectively
  • a chuck assembly for installing self-drilling shells in concrete or masonry, the shell having a tapered end and the chuck having a tapered socket at one end thereof adapted to receive said tapered shell end and a transverse passageway intersecting the tapered socket so as to enable the tapered shell end to protrude into the transverse passageway and a relief passageway for discharging cuttings passing through the shell during installation thereof, a combined handle and ejector adapted to be associated with the chuck for selectively rotating said chuck about the longitudinal axis thereof during said installation and for ejecting said shell end from the socket comprising, a bifurcated member having a handle end and its opposite end adapted to be rotatively journalled straddling the chuck, camming means on said opposite end engaged in said transverse passageway normally clearing the tapered end of the shell, but engageable with said tapered end by rotation of the handle about the axis of said transverse passageway whereby to eject the said shell end, said camming means
  • a chuck assembly for installing self-drilling shells in concrete or masonry, the shell having a tapered end and the chuck having a tapered socket at one end thereof adapted to receive said tapered shell end and a transverse passageway intersecting the tapered socket so as to enable the tapered shell end to protrude into the transverse pas sageway and a relief passageway for discharging cuttings passing through the shell during installation thereof, a combined handle and ejector adapted to be associated with the chuck for selectively rotating said chuck about the longitudinal axis thereof during said installation and for ejecting said she-l1 end from the socket comprising, a bifurcated member having a handle end and its opposite end adapted to be rotatively journalled straddling the chuck, camming means on said opposite end engaged in said transverse passageway normally clearing the tapered end of the shell, but engageable with said tapered end by rotation of the handle about the axis of said transverse passageway whereby to eject the said shell end,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
US88750A 1961-02-13 1961-02-13 Combined handle and ejector Expired - Lifetime US3070382A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL274166D NL274166A (xx) 1961-02-13
US88750A US3070382A (en) 1961-02-13 1961-02-13 Combined handle and ejector
GB1603/62A GB984458A (en) 1961-02-13 1962-01-16 Combined handle and ejector apparatus for percussive drill
DE19621427740 DE1427740A1 (de) 1961-02-13 1962-02-12 Geraet zum Eintreiben von Expansionshuelsen in Beton,Mauerwerk usw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88750A US3070382A (en) 1961-02-13 1961-02-13 Combined handle and ejector

Publications (1)

Publication Number Publication Date
US3070382A true US3070382A (en) 1962-12-25

Family

ID=22213230

Family Applications (1)

Application Number Title Priority Date Filing Date
US88750A Expired - Lifetime US3070382A (en) 1961-02-13 1961-02-13 Combined handle and ejector

Country Status (4)

Country Link
US (1) US3070382A (xx)
DE (1) DE1427740A1 (xx)
GB (1) GB984458A (xx)
NL (1) NL274166A (xx)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3131947A (en) * 1960-11-25 1964-05-05 Black & Decker Mfg Co Masonry drilling apparatus having vacuum dust-collecting system
US3220742A (en) * 1963-01-21 1965-11-30 Trade Tools Inc Vacuum coupling for self-drilling masonry anchor chucks
US3341213A (en) * 1963-11-02 1967-09-12 Impex Essen Vertrieb Tool holder
US3368633A (en) * 1965-10-22 1968-02-13 Trade Tools Inc Dustless drilling apparatus
DE1298953B (de) * 1963-11-02 1969-07-03 Impex Essen Vertrieb Werkzeugfutter, insbesondere fuer selbstbohrende Spreizduebel setzende Elektro- oderPresslufthaemmer
DE3436171A1 (de) 1983-10-19 1985-05-02 SFS Stadler AG, Heerbrugg Magazinierstreifen fuer schrauben und eintreibgeraet fuer die im magazinierstreifen zugefuehrten schrauben
DE3448511C2 (de) * 1983-10-19 1995-02-02 Sfs Stadler Ag Eintreibgerät für in einem Magazinierstreifen zugeführte Schrauben
US11674270B2 (en) 2019-08-14 2023-06-13 Omachron Intellectual Property Inc. Plastic paver blocks

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3229183A1 (de) * 1982-08-05 1984-02-09 Robert Bosch Gmbh, 7000 Stuttgart Handwerkzeugmaschine mit hilfshandgriff
DE3404962A1 (de) * 1984-02-11 1985-08-14 Robert Bosch Gmbh, 7000 Stuttgart Haltegriff fuer bohrmaschinen und/oder bohrhaemmer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2399939A (en) * 1944-01-28 1946-05-07 John H Phillips Drill chuck
US2767988A (en) * 1955-09-21 1956-10-23 Phillips Drill Co Chuck mounting for mechanical hammer
US2801614A (en) * 1955-09-21 1957-08-06 Phillips Drill Co Combined handle and key for a percussive drill
US2926353A (en) * 1958-04-21 1960-03-01 Phillips Drill Co Chuck and handle for manual installation of self-drilling expansion shells
US2930627A (en) * 1959-02-17 1960-03-29 Phillips Drill Co Self-drilling expansion shell chuck and adapter for use with manual installation device
US2936736A (en) * 1957-09-03 1960-05-17 Phillips Drill Co Handle for percussive drill

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2399939A (en) * 1944-01-28 1946-05-07 John H Phillips Drill chuck
US2767988A (en) * 1955-09-21 1956-10-23 Phillips Drill Co Chuck mounting for mechanical hammer
US2801614A (en) * 1955-09-21 1957-08-06 Phillips Drill Co Combined handle and key for a percussive drill
US2936736A (en) * 1957-09-03 1960-05-17 Phillips Drill Co Handle for percussive drill
US2926353A (en) * 1958-04-21 1960-03-01 Phillips Drill Co Chuck and handle for manual installation of self-drilling expansion shells
US2930627A (en) * 1959-02-17 1960-03-29 Phillips Drill Co Self-drilling expansion shell chuck and adapter for use with manual installation device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3131947A (en) * 1960-11-25 1964-05-05 Black & Decker Mfg Co Masonry drilling apparatus having vacuum dust-collecting system
US3220742A (en) * 1963-01-21 1965-11-30 Trade Tools Inc Vacuum coupling for self-drilling masonry anchor chucks
US3341213A (en) * 1963-11-02 1967-09-12 Impex Essen Vertrieb Tool holder
DE1298953B (de) * 1963-11-02 1969-07-03 Impex Essen Vertrieb Werkzeugfutter, insbesondere fuer selbstbohrende Spreizduebel setzende Elektro- oderPresslufthaemmer
US3368633A (en) * 1965-10-22 1968-02-13 Trade Tools Inc Dustless drilling apparatus
DE3436171A1 (de) 1983-10-19 1985-05-02 SFS Stadler AG, Heerbrugg Magazinierstreifen fuer schrauben und eintreibgeraet fuer die im magazinierstreifen zugefuehrten schrauben
DE3448511C2 (de) * 1983-10-19 1995-02-02 Sfs Stadler Ag Eintreibgerät für in einem Magazinierstreifen zugeführte Schrauben
US11674270B2 (en) 2019-08-14 2023-06-13 Omachron Intellectual Property Inc. Plastic paver blocks

Also Published As

Publication number Publication date
GB984458A (en) 1965-02-24
DE1427740A1 (de) 1968-12-05
NL274166A (xx)

Similar Documents

Publication Publication Date Title
US2918290A (en) Chuck and adapter for self-drilling expansion shells
US3070382A (en) Combined handle and ejector
US3027953A (en) Percussion tool with replaceable point
US4218795A (en) Drill bit with fastener-driving collar assembly
US3498677A (en) Cutting apparatus
US4325153A (en) Combined screwdriver and boring apparatus
US2719042A (en) Toolholder
US3336081A (en) Percussion tool with replaceable point
US3202035A (en) Self-boring wall-plugs
US3049358A (en) Tooling and method of installing expansion shells
US5785468A (en) Drill for interchangeable use on a screw driver
US2484027A (en) Toolholder
US4572035A (en) Tool constructions for removing frozen nuts
US1969798A (en) Retainer for tools and the like
US2399939A (en) Drill chuck
US1136987A (en) Impact rotary drill.
US2801614A (en) Combined handle and key for a percussive drill
US4041558A (en) Sheetrock hole puncher and nail setter
US6539824B2 (en) Welding chip hammer with replacement point
US3368633A (en) Dustless drilling apparatus
US4193433A (en) Nail holding hammer
US4050345A (en) Self drilling anchoring dowel
US2926353A (en) Chuck and handle for manual installation of self-drilling expansion shells
US4006763A (en) Impact reaction hammer
US2973527A (en) Combination hand tool