US2734763A

US2734763A - Hasp fastener

Info

Publication number: US2734763A
Authority: US
Publication date: 1956-02-14
Anticipated expiration: 1973-02-14

Description

Feb. 14, 1956 G. w. DAYHOFF HASP FASTENER Filed April 25, 1952 INVENTOR. 6 M W. DAYH FF 7708MB Y HASP FASTENER George W. Dayhotf, Reading, Pa.

Application April 25, 1952, Serial No. 284,292

4 Claims. (Cl. 292-285) This invention relates to a hasp fastener and, more particularly to a hasp fastener in the form of a catch member for securely fastening the hasp without the necessity of a padlock.

An outstanding disadvantage of hasp fasteners of conventional construction is that they are ineffective to tightly shut a door and, instead, allow looseness of the hasp and rattling of the door. Another outstanding disadvantage is that conventional hasp fasteners are wanting in simplicity of construction and economy in the manufacture as well as effectiveness in tightly clamping hasp elements together so as to firmly hold the door in tightly shut position.

Other objects and advantages of the present invention will become apparent from a study of the following description taken with the accompanying drawings wherein:

Figure 1 is an elevational view of a hasp and hasp fastener embodying the principles of my invention;

Figure 2 is a cross-sectional view taken along line II-II of Figure 1;

Figure 3 is an enlarged plan view of the hasp fastening element shown in Figures 1 and 2; and

Figure 4 is a fragmentary view of a portion of the hasp shown in Figure 1.

Referring more particularly to Figures 1 to 4, inclusive, numeral 1 denotes a base plate having a plurality of holes through which screws 2 are projected for fastening the base plate to a door (not shown). Pivotally mounted on the base plate 1 by means of a hinge 3 is a hasp 4 which has a slot 5. The slot 5 is adapted to surround a staple or eye 6 mounted on a staple plate 7 which is fastened to a door jamb or frame. The structure heretofore described is well known. As shown more clearly in Figure 4, hasp 4 is provided with a slot 8a through which there is projected a loosely mounted rivet 9 for pivotally mounting a hasp fastening element 8 of substantially U-shape. Fastening element 8 is provided with an integral, wedge-shaped flange 8b having a horizontally extending wing or extension 80 which serves as a thumb piece to aid in lifting and pivotally moving fastening element 8 about rivet 9 as a pivot. It will be observed that when fastening element 8 is in the locking position, as shown in Figure 1, the wedge-shaped flange 8b will provide a wedging action between staple 6 and hasp 4, as will become apparent from a study of Figure 2, so that when the element 8 has been pushed downwardly as far as possible, flange 8b will be firmly wedged into locking position. In order to prevent slipping of the wedged flange 8b, it may be provided with a cutout portion, such as 8d, for increasing frictional engagement with the staple 6. An outstanding advantage of this arrangement is that there is no looseness between the hasp 4 and staple 6 as is customaryin conventional hasp fasteners which would otherwise cause rattling of the door as the result of wind. The hasp may be provided with a turned up and outwardly projecting edge 4:: to serve as a stop element to prevent the hasp fastening element 8, when pivoted clockwise, from falling below a generally horizontal position if so desired.

Thus it will be seen that I have provided a hasp fastener nited tates Patent 0 2,734,763 Patented Feb. 14, 1956 or locking element which may be mounted either on a hasp or staple plate and which will firmly fasten the hasp in the locked position, Without the possibility of play or looseness between the hasp and staple, thereby eliminating rattling of the door as the result of wind;

furthermore, I have provided a hasp fastening element of relatively simple construction which maybe economically manufactured, and which embodies a wedge for causing a wedging action between the fastening element ind staple so as to firmly hold the hasp in place and the door tightly shut.

While I have illustrated and described several modifications of my invention, it will be understood that these are by way of illustration only, and that various changes and modifications may be made within the contemplation of my invention and within the scope of the following claims.

I claim:

1. In combination with a staple and a hasp having a slot through which said staple is adapted to project, a fastening element of inverted U-shape adapted to surround the top portion of said staple, the lower extremity of one of the legs of which is pivotally mounted on said hasp, said element having a flange extending outwardly substantially at right angles along the other of said legs, said flange having a downwardly and inwardly tapered edge which is adapted to provide a camming action against the interior of the staple to effect wedging as the result of downward movement of said flange caused by the weight of said fastening element, the top portion of said flange having a horizontally and sidewse extending wing to serve as a thumb piece to facilitate raising and pivotal movement of said fastening element.

2. A hasp fastener comprising, in combination with a hasp including a slot and a staple adapted to be projected through said slot, a hasp latching element of substantially inverted U-shape adapted to encircle the top portion of said staple and having one leg extremity pivotally mounted on said hasp so that the other leg can be projected through said staple to effect latching, said other leg having a fiat portion parallel to said hasp and an integral flangeportion at right angles thereto provided with a tapered edge engageable with the inten'or of the staple to effect a wedging latch action to tightly hold the hasp, said flange portion terminating at the top with a horizontally extending integral finger piece which is at right angles to said flange portion.

3. A hasp fastener as recited in claim 2 wherein said tapered edge is provided with an indentation for frictionally holding said hasp latching element against sliding movement with respect to said staple when in the latching position.

4. A hasp fastener as recited in claim 2 wherein said hasp has a struck up portion on its lower part to act as a stop element to limit pivotal movement of said latching element when moved to the unlatched position.

References Cited in the file of this patent UNITED STATES PATENTS OTHER REFERENCES Stock-Proof Hasp. Item listed on page 68 of Catalog of Allith Prouty Co., Danville, Illinois.