US2787036A

US2787036A - Tackless plastic stair nose

Info

Publication number: US2787036A
Application number: US347755A
Authority: US
Inventors: Irving L Mermer
Original assignee: Individual
Current assignee: Individual
Priority date: 1953-04-09
Filing date: 1953-04-09
Publication date: 1957-04-02
Anticipated expiration: 1974-04-02

Description

April 2, 1957 L. MERMER 2,787,036

' TACKLESS PLASTIC STAIR NOSE Filed April 9. 195; 2 Shets-Sheet 1 1 N V EN TOR.

away/12mm. bum AM.

April 2, 1957 l. 1.. MERMER 2,787,036

TACKLESS PLASTIC STAIR NOSE Filed April 9. 1953 2 Sheets-Sheet 2 Z (2:: v v

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INI'EN.TOR. BY

LLLmN-R/ flzrm'x United States Patent TACKLESS PLASTIC STAlR NOSE Irving L. Mermer, Yonkers, N. Y. Application April 9, 1953, Serial No. 347,755

1 Claim. (Cl. 20-79) This invention relates to plastic stair noses, and more particularly to stair noses having a channel disposed at the rear of the tread.

The carpeting of a flight of stairs is subjected to greatest wear at the point of juncture of the tread and riser of each step.

It is an object of this invention to provide a plastic nose to protect the above-stated point of greatest wear.

It is a further object of this invention to provide a means of securing a plastic stair nose without having said means apparent to the eye.

It is a further object of this invention to provide a stair nose having a tread section with a concealed reversed flap at its rear.

These and other objects of this invention will become apparent upon reading the following descriptive disclosure taken in conjunction with the accompanying drawing in which:

Fig. 1 is an end view of an embodiment of this invention,

Fig. 2 is an end view of the longitudinal V-shaped gripper used to hold down the tread of the embodiment shown in Fig. 1,

Fig. 3 is a perspective view of the embodiment shown in Fig. 1,

Fig. 4 is a perspective of the gripper used to hold the plastic nose in position,

Fig. 5 is a detailed view showing the manner of securing the flap of the tread of the plastic stair nose through the carpet and into a wooden stair tread,

Fig. 6 is an end view of an embodiment of the invention wherein the tread is provided with a corrugated wearing surface,

Fig. 7 is a perspective view of the tread shown in Fig. 6,

Fig. 8 is an end view of an embodiment of a gripper adapted to secure the tread flap of the stair nose shown in Fig. 6,

Fig. 9 is a perspective view of the gripper shown in Fig. 8 showing the arrangement of the spaced-apart punch-out cleats.

Fig. 10 is a detailed view showing the manner of securing the flap of the tread with the gripper of Fig. 8,

Fig. 11 is another embodiment of this invention showing a tread having a puckered wearing surface and a spring-back riser,

Fig. 12 is a perspective view of the embodiment shown in Fig. 11,

Fig. 13 is an end view of an embodiment of the gripper of this invention showing another form of cleats,

Fig. 14 is a perspective view of the gripper shown in Fig. 13,

Fig. 15 is a detailed section showing the manner of securing a plastic stair nose to a carpet fabric by means of the gripper of Fig. 13,

Fig. 16 is an end view of a modification of this invention showing a tread flap with a slot head,

Fig. 17 is a top view of Fig. 6, broken away in part,

to show the position of a normally hidden tack adapted to secure the tread flap to a stair tread, and

Fig. 18 is a section view through a slot and showing the manner of securing the tread flap to a carpeted stair tread.

Referring to Figs. l-5 inclusive, a plastic stair nose 1, which may be transparent, translucent or opaque, is provided with a tread section 2, a nose section 3, and a riser section 4. This stair nose is generally of a size to fit over the nose formed by the tread and riser of a step.

The rear of the stair nose tread 2 is integrally provided at its bottom with a flap 5 disposed in spaced relation to the bottom surface of the tread 2. This spaced apart effect of the tread and its integrally secured flap is accomplished by providing a curved section 6 to the rear of the tread 2.

The top surface of the flap 6 may be provided with a corrugation 7 for effective securing of the gripper 8 shown in Fig. 2. The gripper 8 is a V-shaped longitudinal angle iron having the top inner surface of one V-leg 9 provided with a corrugation 10. The other leg 11 is provided with a plurality of apertures 12 adapted to receive tacks for securing said leg 11 to a stair tread.

Fig. 5 shows the manner of disposing of ilap 5 between the clinched legs of the V-shaped gripper 8. Tacks 13 (shown in dotted outline), are disposed in the apertures 12 and through the carpet and thence into the wooden stair tread. The stair noses of this invention when secured to the stair treads as described, are firmly held in place against the carpet of both the carpeted stair treads and risers. The stair nose riser is flexible, being made preferably of plastic, and since the riser is turned inwardly (Fig. 1) it firmly engages the carpeted vertical riser of a stair step.

Figs. 6 to 10 show a modification of this invention wherein the tread 2 is provided with a corrugated wearing surface formed by a plurality of longitudinal spacedapart bars 16 integrally united to the tread 2.

The V-shaped gripper 17 of Fig. 8 is provided with a plurality of triangular spaced-apart teeth 17X formed by punching out and bending V-shaped cut-outs in leg 18 of the gripper 17. The leg 19 of the gripper 17 is provided with two rows of spaced apart apertures, one of said rows is to receive the securing tacks 20 (shown in dotted outline) and the other is to receive the teeth 17X.

As shown in Fig. 10 the tack 20 passes through carpet 14 and thence into the wooden tread 15 of the step. The tooth 17X after passing through the aperture provided therefore in the leg 19 of the gripper 17 is partly disposed into the carpet 14.

In the modification shown in Figs. l1l5 inclusive the tread 2 is provided with a top wearing surface 21, said surface having a puckered appearance. In this modification the base of the riser 4 is provided with a bulbous section 22. The bulbous section is disposed inwardly of the nose 3 so that when the stair nose riser is disposed against the carpet riser it engages the same in a springlike action.

Fig. 13 shows a V-shaped gripper wherein the top leg 23 is provided with short rectangular shaped cleats 24, the bottom leg 25 of the gripper of Fig. 13 is provided with a first row of spaced-apart apertures 26 adapted to receive tacks for securing said gripper to a stair tread, and with a second row of spaced apart apertures 27 adapted to receive the rectangular cleats 24.

As shown in Fig. 14 the rectangular cleats 24 are prepared by punching out rectangular shaped cut-outs so as to hinge them on a short side of the rectangle.

In Fig. 15 the gripper is shown in clinched position with the cleats imbedded in the carpet 14.

Figs. 16-18 inclusive show a further modification of this invention wherein the flap 5 is provided with a plu rality of spaced-apart slots 28. These slots preferably terminate in a round cavity adapted to receive the shank of a carpet tack. In securing the stair nose of the modification shown in Figs. 16-18 a plurality of spacedapart tacks 29 are linearly disposed at an appropriate distance from the stair nose .and through the carpet disposed on a carpeted step and thence into the wooden step itself. In securing the stair nose of the modification of Figs. 16l8 to the tacks disposed in the carpeted stair tread the tacks 29 are so hammered in place as to leave a distance between the tack head of the carpet substantially equal to the thickness of the flap 5. In securing the tread of the modifications of the stair nose shown in modifications 16-18 in place over a step, the slots offlap are disposed behind the corresponding tacks 29, said slots and said tacks having identical spacedapa-rt relation. The .flap 5 is then pulled forward so that the cavity of slot 25% engages the shank of the tack 29; thereby firmly securing the flap in position. The stair nose of this latter modification, Figs. l618, can be removed and a new stair nose substituted therefor without disturbing the tacks 29.

The lower surface of tread 2 is preferably provided with pointed longitudinal ribs 31), which are molded integrally with said tread 2, the height of said ribs 30 being sufficient to prevent sag when stepped upon. The ribs 2,7e7,ose

also act as a gripper and avoid crushing of the carpet pile therebeneath.

While this invention has been described and shown by a plurality of embodiments, it is apparent that other modifications fall within its scope. These various modifications are all intended to be covered by the claim appearing herein.

Having described my invention, what I claim and desire to secure by Letters Patent is as follows:

In means for the protection of carpets disposed over a flight of stairs, an integral V-shaped gripper having a lower horizontal section bearing ,a plurality of nailing elements for securing said gripper over a carpet covering a stair tread and .an upper longitudinal section hav ing downwardly extending teeth, and in combination with said gripper an L-shaped stair nose, bent downwardly along its longitudinal rear margin, said margin merging with an inwardly extending horizontal flange having an upper toothed surface engaging the teeth of said gripper.

References Cited in the file of this patent UNITED STATES PATENTS 1,528,147 Durkee Mar..3, 1925 2,051,191 Watson Aug. 18, 1936 2,498,991 Gibson Feb. 28, 1950