US1782565A

US1782565A - Screw holder

Info

Publication number: US1782565A
Application number: US295135A
Authority: US
Inventors: Dohnal Frank
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-07-25
Filing date: 1928-07-25
Publication date: 1930-11-25
Anticipated expiration: 1947-11-25

Description

' Nov. 25, 1930. DQHNAL 1,782,565

SCREW HOLDER Filed July 25, 1928 INVENTOR ATTORNEY I ready for operating a position therein and Patented Nov. 25 1930 i iRANK .normar,

or EUo in; on-Io. I

1 ,segew Homes Application filed July 25 invention relatesto means attachable to screw driver means and adapted to temporarily hold a screw preparatory, to rotat on thereof Objects of my inventionjare a simple, inexpensive, easi ly operable and e'fiicient screw holderhav ln'gmeans for engagingand anpreparatory to "rotation. thereof and for attachingtheholderto variously sized screw driving means and automatically engaging the same. Other objects will appear-0r be:

come apparent or willsuggest themselves upon an inspection f of the accompanying J herein to explain my invention. J

. flFigal is a general perspective' vi clearly. q:

drawing'an d the description followin herein Iamaware that my i'nventionis applicable in v a'rionsmanners. For the purpose of illustration, but not forlimitationyl have shown one device in the accompanyingdrawing, em

botlying my invention and describe the same In the accompanyingdrawingz f V i r W of one type of screw holder e rnbodylng my'in-vention with a portion of a screw dr ving means a screw shown in dotted lines ready for screw holding operation in the jaws thereof;

Fig. 2 is alongitudinalfsection taken in a plane indicated bythe line 22 in Fig; [1

and showsthe relationsof parts more clearly andthe screwalignedwith the device.

shows the screw driver engaging means more F'g. 4 1s afltransverse section taken in plane indicated by the line 4+4 in. Fig. 1

andshows the relations between the prongs. and the screw dr ver and the screw dI'lVQl engaglngmeans more clearly.

Fig. 5 is a transversesection taken in a plane; indicated by the line 5-5 in Fig. 1 i and shows the secondscrew driver engaging. means moreclearly.

Fig. 6 is a transverse section taken'in a plane indicated'by the line 6 6 in Fig. land shows the fflat portion ofthe jaw prongs merging into the arcuate form thereoftoward the band portion.

, and described below! 1928. Serial N5. 295,135.

For the purpose ofsimplicit'y and economy of'nianlifactnre, afeatnre of invention; Q 1

the device here shown is. Inadeof onepiece of'sheet material suitably cut out to provide the niembers or elements described belowalnd bent to properly relate the 1 same tojeach other as shown in the accompanying drawing For the piirpose of automatically gripping and aligning screws in; the holder and auth matically releasing screws from the holder and" automaticallyengaging the holder on screw drivers and automatically releasing the 7 typical team. of the jaws ear shown in the accompanying drawing a tomatlcally releasing varlously slzed screws same from screw drivers, onefeature of my.

invention, is to material. e 1 p The. band portion 10 is bent circularly as shown with the opening. 10 betweenft-heedges thereof. The prongs and extend from one end of the band portiofn and are arjcuate cross sectionally at the; band portion and gradually form into crosssectiOnally"ffiat' ends so that the same retain their original shape and taper longitudinallyfso that the than the remainderthereofi end of the band porti n andare arcnatecross' rnake the device of resilient I vfree ends thereof are normally closer together Figgai a transverse section taken in a" plane indicated by the line'3-3"in*-Fig. 1 and sectionally so that thesame retain theirorigina-lforni and taper. longitudinally softhat therreeenas thereof are normally closer to-l gether thanthe rema nder thereof:

Another feature of my inventionis that v either the width or the length, or the curvature, or the taper of theprongspany or all of these features can be varied to suitfvarious I screw engagirig 'or screw releasing, or'screw driver engaging,or screw driver releasing rea quirements. i i

As shown, tliepron gs 11 and 12 each have the slot 15fin the outer end thereofto permit of angnlar insertion of a screw as indicated. dotted lines in-Fig. 1 and to provide-the pairs of jaws 16 and 17 each of which has the notch 18 with inclined sides in the present instance near the free end thereof and the outflaring member 19 on the extreme outer end thereof.

More than two jaws are thus formed on the prongs 11 and 12, four in the present instance, and the notches 18 are all in the same transverse plane in the present instance.

This transverse alignment of the notches and the even number of jaws will hold screws of variously shaped heads in alignment with the holder. If an uneven number of jaws, three for instance, were used and the notches therein in transverse alignment, the usual flat head screws will be held in alignment with.

the holder since the outer edge of the head engages the bottom of the notches but other forms of screw heads, round heads for instance, would not he held in such alignment since the round parts of the head contacts the upper wall ofthe notches and the edge of the head does not contact the bottom of the notches; in such cases, the contact points on the head are not diametrically opposite and therefore tend to disalign the screw in the holder and if the notches are suitably arranged to align one kind of head, they would not be suitable to align other kinds of heads. Whereas an even number of jaws, with the notches in alignment is suitable to hold screws with variously shaped heads in alignment with the holder since the contact points of the jaws on the screw are diametrically opposite.

The extreme outer end of each of the jaws 16 and 17 is formed with the out-flaring member 19, each having an inclinedly curved face 21 directed in line with the movement of the prongs in the present instance.

The prongs l3 and 14 are formed with the sidewise enlarged

clip members

22 and 28 on the outer end thereof, arcuate in the pres ent instance and thereby form two opposite screw driver engaging means at the end of the holder.

The band portion 10 is formed with the inwardly extending lump 24 and the inwardly extending ears or

clip members

25 and 26 each engageable on the screw driver and thereby form three screw driver engaging means at the band portion of the holderf The clip members on one end of the holder and the lump and the ears on the band form, as one feature of my invention, a screw driver engagin means whereby the holder is effectively held and aligned on the screw driver.

As to operation of the device just described A screw driver 27 can be inserted longitudinally into the holder through the

resilient clip members

22 and 23 which then engage the screw driver automatically and locate and hold the holder thereon.

As one feature of my invention, the holder is open on one side as well as on both ends so that a screw driver can be inserted into the holder either endwise or sidewise.

The head 28 of a screw can be inserted in between the jaws at an angle to the longitudinal axis of the holder as shown in Fig. 1; the body of the screw being then located in one of the slots 15 the bottom of which forms an abutment or locating means for the screw; the screw is then used as a lever in jack hnife fashion to force the jaws apart until the screw is in alignment with the holder whereupon the edge of the head 28 is forced into the notches 18, and the screw is firmly held in alignment with the holder and with the screw driver by the jaws which prevents disalignment of the screw. The screw driver can then be brought into operative connenction with the screw and rotated to rotate the screw.

Due to the inclinedly curved faces 21, screws, particularly those with round or pointed or conical heads, can easily be inserted endwise of the holder as indicated in dotted lines in Fig. 7.

The screw can also be inserted as aligned in the holder before the same is attached to the screw driver.

When the screw driver and the holder are attached to each other, the usual wide portion of the screw driver just back of the screw engaging end can project out through the spaces between the prongs as indicated in Fig. 6.

When the screw has been moved a certain distance as when it is nearly home, the faces 21 contact the part 29 into which the screw is inserted as indicated in Fig. 7. Further rotation of the screw driver, after the faces 21 are contacting the part 29, causes the edge of the screw head to move the jaws outwardly due to the inclined sides of the notches there in and thereby, eventually, as a feature of my invention, releases the screw automatically While the same is being rotated.

V This outward moving of the jaws is facilitated by the faces 21 which are curved inclinedly as a feature of my invention, in that there is a good wedging action to move the jaws outward easily and so that there is no square shoulder or edge like member in contact with the part 29 to impede or prevent the easy outward movement of the jaws.

In the device shown and described there are more than two screw engaging aws whereby a screw is automatically held efiectively and in alignment with the holder and with the screw driver; the jaws automatically release the screw while the same is being rotated; the clip members automatically engage on and automatically disengage from the screw driver; the device is hold in alignment on the screw driver by spaced clip means; and the holder can easily be attached to and removed from a screw driver or the screw driver inserted into and removed from the holder without the use of either endwise or sidewise.

I am aware. that changes, can be made in the structure as well as 1n the arrangement of elements shown and described within the scope of the appended claims; therefore,

toa'utomatically hold the holder onto a screw driver and two resilient prongs normally con-- tracted at the outer end thereof, each of said prongs having a slot in the outer endthereo'f longitudinally of the prong forinsertion of the head of a screw sidewisein'between'said prongs and longitudinally'of the prongs and to form jaws onthe endsof said prongs; each of said jawshavlng a notch therein to engage the head of the screw-when the screw is swiveled from the sidewise insertedposition thereof into. an aligning position with the holder.

2. A screw holder including means for automatic aligning and holding the holder onto ascrew'driver, and two prongs one at least having a slot in the outer end thereof to re-..

ceive the shank of a screwwhen'the head portion thereof is inserted sidewise in between the prongs from the outer end and lon-J .gitudinally thereof and to grip the head of the screw when the same is swiveled from its inserted angular position into aligning position with the holder; the outer end of each of said prongs being flared outwardly to open the prongs and release the head of the screw when the'outerends of the prongs contact the article into which a screw is driven. and to I facilitate longitudinal insertion'of screws into the holder.

3. A screw holder including aband portion tools and and further formed into a resilient band engaging portions.

tween the prongs from the outer longitudinal end thereof and having notches to grip the head of thescrew and align the screw with the screw driver when the screw is swiveled aligning position.

5. A screw holder adapted to be attached from its inserted angular position into an holding prongs normally contracted at the free end thereof; at least one free end having a slot to initially receive thehead portion of to a screw driver and having resilient screw a screw sidewise and both free ends having notches to grip the head when the screw is swiveled from its angular position into alignment with the holder.

6. A screw holder made of one piece of material. and formed into a resilient band and resilient clip members for alignment on and" engagement of a screw drlver and further formed into resil ent free end aws comprising a slot therein for sidewise reception of. a screw and screw head engag ng notches interiorly thereof for allgnment of the screw 7 with the screw driver and final gripping of l the screw upon movement ofthescrew from its initial angular positionto an aligning 0 sition with the screw driver.

. 7. Atscrew'holder attachable to asorew driver, made of one piece of material and formed into resilient screw gripping jaws comprising a certain number of screw driver engaging portions and I'BSlllBIlt clips comprlsing a diflterentnumber of screw driver In testimony of the foregoing I affix my signature; 7 i

open at one sideand having screw driver engaging means spaced clrcumferentlally and and to assist in the holding of the holder on a screw driver, clip means longitudinally of one end of said band portion toassist in the aligningand in the holding ofthe holder on the screw driver, and screw gripping means longitudinallyof the other end of said band portion and adapted to grip the head of screws to hold'the same in to driving the same. a V

,4. A screw holder including a resilient band portion open at oneside and having position previously out of diametrically opposite relation to align g 110 screw driver engaging means spaced circumferentially and out of diametrically opposite relation to align and to assist in the holding i v of theholder on a screw driver, clip 'means longitudinally of oneyend of said band portion to assist in thealigning and in the holding of the holder on the screw driver, and two resilient prong portions each bifurcated on the outer e-ndthereof to receive the head portion of a screw inserted sidewise in becan FRANK DOHNAL. g