Trowel with a handle

Details Trowel with a handle Trowel with a handle

1999-01-14

2001-05-01

Till, Terrence R. (Department: 1744)

Brushing, scrubbing, and general cleaning

Implements

Mason's trowel or float

C015S143100

Reexamination Certificate

active

06223384

ABSTRACT:

FIELD AND BACKGROUND OF THE INVENTION
The invention relates to a trowel with a handle, having a blade and a mount, provided thereon, for the handle, wherein the mount is fastened on the blade by a fastening section, has a spacer section and is inserted in an opening of the handle by an insertion section.
A trowel of this type is known in the prior art. Merely by way of example, reference is made to U.S. Pat. Nos. 5,446,941 or 5,522,111. In these documents, the mount for the handle is fastened on the blade by a fastening section. The fastening section continues into a spacer section. In the case of the smoothing trowel presented in U.S. Pat. No. 5,522,111, the fastening section is configured as a rib which extends essentially over the entire length of the blade. The spacer section projects approximately at right angles from the fastening section. Fastened at the end of the spacer section is the handle, which extends approximately parallel to the rib. The handle is connected to the mount by means of an insertion section. In the case of the prior art, the insertion section is designed as a tang which projects through the handle, in the longitudinal direction of the latter, and is fastened to the handle by an end-side nut. The insertion section projects approximately at right angles from the spacer section.
Furthermore, Utility Model 18 75 730 discloses a smoothing trowel in which a tang passes through a handle. A similar smoothing trowel is known from DE 35 40 565 A1. A tang passes through the handle in this document too. Positioned in the end region of the handle is a plug-on neck with laterally projecting wings for thumb support.
The object of the invention is to provide a trowel of the introductory-mentioned type in order, while maintaining the use advantages achieved by the measures of the prior art, to ensure more straightforward assembly and production.
SUMMARY OF THE INVENTION
According to the invention the insertion section (
5
) is inserted in a radial opening (
6
) of the handle (
1
) provides a trowel in the case of which the handle is connected to the trowel without the conventional tang running in the longitudinal direction of the handle. One aspect of the invention is the fact that the insertion section is inserted in a radial opening of the handle. Rather than the handle being connected to the mount by being pushed onto a tang in its longitudinal direction, the handle is now inserted radially onto the insertion section of the mount. A securing pin which is inserted axially into the handle can be used to secure the insertion section against being drawn out. It is advantageous if the insertion section tapers in its insertion direction. If the insertion section is to fit in the radial opening in a correspondingly shaped manner, the tapering brings about a wedging action, which provides for play-free mounting of the handle on the insertion section. The handle is advantageously injection molded from a plastic. The core of the injection mold which fits in the radial opening may in this case be in the form of the insertion section. The slight, production-induced shrinkage of the plastic material then ensures a tight fit of the insertion section in the insertion opening (radial opening). In a further advantageous configuration, the insertion section is an essentially rectilinear extension of the spacer section. This variant is advantageous, in particular, in the case of smoothing trowels. The insertion section may be rounded at its end. This is advantageous from an injection-molding point of view. It also, however, brings advantages in the production of the insertion section, which is stub-like in relation to the conventional, long tangs and extends into the handle, beyond the center of the latter. The insertion section may be in the form of a pyramid. The securing pin, by means of which the insertion section is secured in the correspondingly shaped radial opening, may be designed as a countersunk-head screw which is screwed into the end of the handle and passes through an opening of the insertion section. In this case, the thread of the countersunk-head screw cuts into the solid volume of the handle. In a preferred configuration, the handle body, which consists of a rigid plastic, is coated by a flexible-plastic sheathing. It is advantageous if that end side of the handle into which the countersunk-head screw is screwed consists of rigid plastic material.
Moreover, the invention comprises a handle for a trowel or the like. In the region of its end side, the handle has a radial opening for the insertion of an insertion section of a fastening section or the like. The handle preferably comprises a rigid-plastic core, which preferably forms a hollow body. This hollow body may be made up of two half-open core parts. When they have been fitted together, the two half-open core parts form a parting joint. This parting joint is covered over by the flexible-plastic sheathing. In order for it to be possible for the two core parts to be fitted together, the borders of the core parts are of relatively narrow configuration, with the result that an overlapping zone is formed. In this overlapping zone, the two core parts latch with one another. Arranged on the outside of the core part are webs, of which the height corresponds to the thickness of the flexible-plastic sheathing. The fitted-together rigid-plastic core can thus be positioned, and centered, in an injection mold with a gap around it, the webs being supported on the mold cavity. The flexible plastic is then injected into said gap, with the result that the end surfaces of the webs, in alignment with the flexible-plastic sheathing, are exposed to the outside.


REFERENCES:
patent: 696066 (1902-03-01), Miller
patent: 1168643 (1916-01-01), Johnson
patent: 2076836 (1937-04-01), Goldblatt
patent: 2578163 (1951-12-01), Whalen
patent: 3045271 (1962-07-01), Cinotti
patent: 4817231 (1989-04-01), Ocwieja
patent: 4884312 (1989-12-01), Clark
patent: 5097909 (1992-03-01), Jauhal et al.
patent: 5446941 (1995-09-01), Kelsay
patent: 5491896 (1996-02-01), Stolzer et al.
patent: 5522111 (1996-06-01), Kelsay et al.
patent: 5632569 (1997-05-01), Szmansky
patent: 5956799 (1999-09-01), Panaccione et al.
patent: 1875730 (1963-05-01), None
patent: 3540565 (1987-06-01), None

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