US2767399A - Ceiling nailer - Google Patents

Description

Oct. 23, 1956 o. M. WIDENER 2,767,399

CEILING NAILER Filed oct. 5, 195s gg Gwen Mafon WMe/7er 70 I N V EN TOR.

United States Patent O CEILING Owen Maston Widener, `Corpus Christi, Tex.

Application' October 5, 1953, Serial N0. 384,140

3 Claims; (Cla 1 47);

This invention relates 'to the` classof tools and more particularly to a ceiling nailere'specially"adaptedfor use in securing building materials to ahorizontal overhead surface.

The primary object `of the present invention" resides in the provision of means for facilitating; the attaching of large sheets of building material such as those commonly called sheet rock, rock lath, plasterboard orthe' like. These building materials are comparatively large-in size often sold in sizes of 4I x 6" or"4"x8" and," therefore, are of considerable Weight andv .extremely unwieldy.

A further object of this invention resides inthe provi sion of means for nailingoverheadwith'out thenecessity of utilizinga ladderV or scalfolding sin'ce' the device" is of suicient length as to enable the user to stand on the floor while nailing overhead structures thereby eliminating the injuries which occur from falling oli ladders or scatfolds and the like.

The concept of the present invention provides means for enabling the nails used to fasten the plasterboard to the overhead support structure to be driven without requiring any diiiieult or acrobatical maneuvering by the utilizer.

The device :comprising the present invention especially features a disk adjustably secured to the housing which forms the means for adjusting the stroke of the rod comprising the .striking portion of this device and further includes means for adjusting the depth to which the nail will be countersunk.

Still further objects and features of this invention reside in the provision of a ceiling nailer that is strong and durable, `simple in construction and manufacture, capable of being readily produced out of various materials, and which is easy to use.

These, together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure l is a perspective view of the ceiling nailer comprising the present invention;

Figure 2 is an enlarged vertical sectional view as taken along the plane of line 2 2 of Figure l and illustrating the manner in which the foot member limits the penetration of ceiling material by the casing to a preset depth to control depth of countersinking;

Figure 3 is a horizontal sectional view as taken along the plane of line 3 3 in Figure 2 illustrating the means for attaching the driving spring in an adjusted re1ationship;

Figure 4 is a horizontal sectional view as taken along the plane of line 4 4 in Figure 2; and

Figure 5 is a sectional view of a modified form of the invention.

With continuing reference to the accompanying drawings wherein like reference numerals designate similar 2,767,399 patented Oct. 23, 1956 partsthrough theA various views, reference numeral 10 generally designates an elongated hollow' tubularcasing having an externally threaded endl 12 which is threadedly secured in the end wall 14 of an elongated tubular housing 16, the housing 16`being of greater ydiameter and length than that of the casing 10. A lock nut 18 or the like is used to held the casing 10 in secure relationship relative to the housing 16. Slidable Within the casing 10 and the housing 16 is anelongated rod 20 having a collar 22 attached thereto, thecollar 22 being received in the housing 16.

A coil spring 24 concentric with the `rod"2`0 biases'the end wall 14 and the collar 22.

The lower' end of'the rodV 20` has a spherical handle 26 attached thereto by means of a screw/"28 which errgages a recess 36 in the rod 20 and extends through an aperture as at 32 in a socket portion 34 formed in the spherical handle 26'.` The screw` 28 also serves to hold one end of al coil spring 34 to therod 20, the other end of the coil' spring Which is'concentric with the rod 20 being secured in a disk 36. The spring 34 has an end portion 35 which may be slidable in the disk 36 and terminates in a limit stop 37. The disk 36 is held in. an adjusted relationship by means of set screws 38 and 40 which are threadedly engaged in' the disk 36` and'which` extends through elongated slots 42 and 44 formed in the housing 16. rlhe disk 36 may be 'adjustably positionedto raise and lower the upperv end of thespring" Strand` thus provides means for adjusting the spring 34.

The upper end of the casing 10 is externally threaded as at 50 for reception of ran internally threaded member 52 having a foot member 54 attached] thereto, the foot member being in the form of an outwardly extending nger. A lock nut 56 or other suitable means is used to lockingly adjustably secure the member 52 on the threaded end of the casing 10.

In operation, a nail is inserted into the open end of the casing 10 and the handle 26 is pulled back compressing spring 34. The handle when released causes the rod 2t) to act as a striking member to drive the nail to the building materials. The foot member 54 engages the undersurface of the building material and in view of the fact that the member S2 is adjustable on the casing 10 the nail will be countersunk depending upon. the arrangement of parts of the member 52 relative to the casing 1t) even though the member 52 has no control over the travel of the rod 20. To insure that the nail will be sufficiently countersunk so that when the external surface of the building materials are finished utilizing a suitable plaster compound or the like the head of the nail will be suciently covered and hence invisible, it is merely necessary to adjust the member 52 and lock nut S0 as well as the lock nut 18. It is to be recognized that if the foot member 54 were to be lowered so that its upper surface was below the upper edge of the casing 10, the casing 10 would penetrate and weaken the building material when the foot member was engaged with the building member thus enabling a nail to be thereafter driven and countersunk to approximately the depth of penetration by the casing A modified form of the invention is shown in Figure 5 and employs two rod sections 74 and 78. The collar 22 in this embodiment has a threaded member 70 welded thereto for reception of the threaded end 72 of a rod section 74 which is threadedly secured in the member 70 and held by lock nut 76 so as to be detachably secured to the rod section 78 which has the collar 22 attached thereto.

. Hence, as can be readily understood the utilization of numerous modifications will readily occur to those skilled Y in the art, it is not desired to limit the invention to the exact construction shown and described, and 'accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the appended claims.

What is claimed as new is as follows:

1. A ceiling nailer comprising an elongated hollow casing, a hollow housing, said casing being secured to an upper end wall of said hollow housing, an elongated rod slidably disposed in said casing rand said housing and having a collar secured thereto, resilient means biasing said end wall and said collar, a spring secured to one end of said rod and extending into said housing, said one end of said rod extending beyond said housing, and means adjustably securing the other end of said spring to said housing, and a foot member threadedly adjustably secured to said casing at a section of said casing remote from said housing.

2. A ceiling nailer comprising Aan elongated hollow casing, a hollow housing, said casing being secured to an upper end wall of said hollow housing, an elongated rod slidably disposed in said casing and said housing and having a collar secured thereto, resilient means biasing said end wall and said collar, a spring secured to one end of said rod and extending into said housing, said one end of said rod extending beyond said housing, said means adjustably securing the other end of said spring to said housing, said housing having elongated slots therein, said last recited means including a disk, and fasteners extending through said slots engaging said disk and holding said disk in an adjusted position, said spring being attached to said disk, and means for adjusting the depth of countersinking at the section of said casing remote from said housing.

3. A ceiling mailer comprising an elongated hollow casing, a hollow housing, said casing being secured to an upper end wall of said hollow housing, an elongated rod slidably disposed in said casing and said housing and having a collar secured thereto, resilient means biasing said end wall and said collar, a spring secured to one end of said; rod, and extending into said housing, said one end of said rod extending beyond said housing, and means adjustably lsecuring the other end of said spring to said housing, said housing having elongated slots therein, said last recited means including a disk, and fasteners extending through said slots engaging said disk and holding said disk in an adjusted position, said spring being attached to said disk, said rod having an enlarged spherical handle attached thereto, and a foot member threadedly adjustably lsecured to said casing at a section of said casing remote from said housing.

References Cited in the le of this patent UNITED STATES PATENTS 1,152,260 Anderson Aug. 3l, 1915 `1,155,724 Harnly Oct. 5, 1915 2,475,936 Allen July 12, 1949 Y FOREIGN PATENTS 447,828 Germany Aug. 1, 1927 156,918 Austria Sept. 11, 1939

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