US1758263A - Fastening means - Google Patents

Description

May 13, 1930.

o H. MERZ 1,758,263

FASTENING MEANS Filed Jan. 20, 1927 mmlmnu llillllllllllll IMMCZZ? 23 M 3/. Wing, 35 ByWWufW- Patented May 13, 1930 UNITED STATES OTTO H. MERZ, OF WEST ALLIS, WISCONSIN FASTENING MEANS Application filed January 20, 1927. Serial No. 162,222.

My invention relates to fastening means which may be adapted for general use but which is designed particularly for use in combination storm and screen doors for dea tachably fastening either the glazed or screened closure in the door frame or casing. The invention may be said to cover improvements and additions in the fastening means disclosed in Patent No. 1,570,072 issued J an- 10 nary 19th, 1926.

The important feature of improvement is the eflicient securing of the fastener independently of nails or screws and by means which automatically function when the fastener is 15 inserted into its seating channel or pocket on one of the frame parts to be secured together.

Referring to the drawings:

Figure 1 is an elevational view of the corner of a door frame and closure insert secured therein by means of my improved fastening means;

Fig. 2 is a sectional view on plane 22 of Fig. 1;

Fig. 3 is a side elevational view of the fastening mechanism;

Fig. 4 is an end view; and

Fig. 5 is a bottom side view.

I have shown the fastening mechanism applied to a door frame for fastening in the opening 11 of such frame a closure 12 which may be either glazed or screened. The door frame has the weather ledge 13 along one edge surrounding the opening 11, while the closure frame or insert 12 has the ledge 14 along the opposite edge, the insert engaging against the ledge 13 and the ledge 14 engaging against the door frame when the insert is in the opening 11 to thus form a weathertight fit.

The fastening structure comprises a frame or body 15 and a fastening or latch bar 16. The body is formed from a single piece of sheet metal which is depressed to provide a longitudinally extending guide groove 17 and the surrounding flange 18, the inner end of the groove and flange being semicircular. The longitudinal walls of the groove 17 are deflected to form the dove- tail sides 19 and 20, and the door frame is routed out with a dove-tail bit to form the dove-tail channel 21 for receiving the dove-tail sided body 15. Such dove-tail joints .assist materiall .1 in holding the fastening structure in its 0 annel with its flange against the face of the door frame, the fastener structure frame being readily insertible longitudinally into the supporting channel. The fastening or latch bar 16 which is stamped integral of sheet metal has the dovetailed sides 22 and 23 which fit and cooperate with the inner faces of the dove- tailed side walls 19 and 20 of the body 15. The outer end 16 of the fastening bar is deflected upwardly a trifle in order to provide the beveled under surface 24. The innerend of the fastening bar is deflected upwardly to form the abutment 25 by means of which the bar may be readily slid to its inner or outer position. For preventing accidental removal of the fasten- 70 ing bar from its supporting frame and also to gauge the outward and inward movement of the bar, a detent hump or abutment 26 is deflected from the bottom wall of the groove 17 to extend into the longitudinal slot-27 in the bar, the abutment then cooperating with the ends of the slot to limit the outward or inward movement of the bar.

In the bottom wall of the groove 17 is the opening 28 for the leaf spring 29 which is secured to such bottom wall behind the opening as by means of a rivet 30. The front part of the spring extends along the opening 28 and its front end has the upward deflection hind the rounded corner of the bar at the base of its extension 25, such engagement of the spring being a distance above the lower face of the bar so that the bar will be yieldingly held in its outer position but may be returned inwardly by exertion of pressure against the bar end. The spring opposes in ward movement of the bar sufficiently so that when the fastening structure is in use the bar will be retained in its outer position and cannot accidentally work its way inwardly.

The inner end 32 of the spring extends a distance beyond the rivet and is pointed as indicated at 33 (Fig. 5) so that the spring end may readily pass into the wood behind the channel 21 when the fastening structure is inserted therein, and preferably the spring end is slanted downwardly so that when it is forced into the wood it will draw the rear end of the fastener body to firmly seat it in its receiving channel and with its flange 18 intimately against the face of the supporting frame ork- At its front end the bottom wall of the groove 17 has integral therewith the extension comprising the wall section 3st extending downwardly at substantially right angles with the groove bottom, and the wood entering point or wall section extending inwardly substantially parallel with the groove bot tom. When the fastener mechanism is inserted in its supporting channel 21 the point 35 will be driven into the wood of the supporting framework, and in order to cause the fastener structure body to be drawn intimately to the sup .orting framework, the point 35 is given a s ight downward slant, and the wall 3 L may also slant forwardly a trifle so that when this fastening extension is driven with a hammer the point will draw downwardly on the wall 34: so that the body of the fastening structure is drawn firmly against the surface of the supporting framework. During such driving of the point the wall 34 Will be bent so as to engage firmly against the side edge of the frame to which the structure is applied. The point 35 together with the spring end 33 will thus securely and intimately hold the fastener structure body in its operative position on the supporting framework, and the use of screws, nails or extra securing devices will be eliminated.

In Figs. 1 and 2 the application and operation of the fastening structure is illustrated. The fasteners are applied to the supporting frame 10 to extend at right angles with the closure receiving opening 11, and for receiving the projected fastening bars the inserted frame 12 has the kerfs or recesses 36 formed therein, and the beveled under-surfaces 24 of the fastening bars engage against the inner sides of the ker-fs in order to. clamp the inserted frame to the door frame with weathertig'ht engagement.

The dove-tail joint connection between the fastening structure body and the supporting frame need not be depended upon to hold the body in place as the spring end 33 and the point 35 will be mainly depended upon to secure the structure, and as the spring and point are inaccessible when an insert frame is in place in the supporting frame, it will be impossible to remove the fastening structure. The pressure of the spring 29 against the underside of the fastening bar will prevent rattling of the bar and release movement of the bar until sufficient positive pressure is exerted against the bar projection 25. No amount of rattling, jarring or jolting of the door can therefore dislodge the fastening bar from locking position.

Having described my invention I claim as follows:

1. A fastening device for the purpose described comprising a body part having a longitudinally extending groove, a fastening bar slidable in said groove and having interfitting engagement at its sides with the groove sides, a spring secured to said body and extending at one end into said groove and against said fastening bar to yieldingly look said bar in adjusted position, the other end of the spring being extended to form a wood engaging point, and an extension at the front end of said groove forming a rearwardly extending wood engaging point below said body.

2. In combination, a support having a surface channel extending therein from a side edge thereof, a fastening device comprising a body part of sheet metal having a longitudinally deflected part for sliding into and engaging in said channel, said deflected part forming a groove, a fastening bar slidable in the groove, a point extending rearwardly from the rear end of the deflected part for entering the material of the support when the body part is slid into said channel, a wall extending downwardly from the front end of said deflected part and a point extending rearwardly from the lower end of said wall, said wall engaging against said support side when the body part is slid into the channel and the point on said wall entering the material of the support, said points serving to secure said body part in said channel against displacement thereof at right angles with said support.

3. A fastening device for the purpose described comprising a body formed integral of sheet metal and having a longitudinal deflection for engaging in a supporting channel and forming a groove, a fastening bar slidable in the groove and confined therein, a spring secured intermediate its ends to the bottom and at the rear of said body, the front end of said spring engaging said fastening bar to yieldingly hold it in adjusted position, the rear end of said spring extending rearwardly beyond said body to form an anchoring point, a wall integral with said body dopending from the front end of said groove, and a rearward extension on said wall forming an anchoring point, said point being normally slightly divergent from said body part whereby when said body part is applied in the supporting channel said point will be driven into the material surrounding the channel to draw said body part downwardly in said channel.

In witness whereof, I hereunto subscribe my name this 15th day of January, 1927.

OTTO H. MERZ.

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