US 2487475 A
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Description (OCR text may contain errors)
Nov. 8, 1949 R. E. POWERS 2,487,475
HOG'RING TOOL Filed Feb. 24, 1948' 3nneukor- 9/6/14) 20 5 Pom/B25 attorney proximity of frame upon the Patented Nov. 8, 1949 2,482,475 HOG-RING TOOL Richard E.
geles, Califi, a firm Application February 24, 1948,
This invention relates to a tool, utilizing staples or rings of the so-called hog-ring type, especially adapted for securing in place the fabric covering of seat-cushions or mattresses; the rings being clinched. through the fabric around the edgewire or frame of the article, or around its springs. The tool of the present invention is, in some respects, an improvement on the hog-ringing tool disclosed in my copending application Serial No. 753,489 filed June 9, 1947, now abandoned.
When a tool of the character described is in the form of a simple pair of pliers into whose jaws a hog-ring is manually inserted for clinchbeen customary to employ one of the protruding points of the ring as a spike for piercingly engaging the fabric to facilitate stretching it into position for fastening. Such procedure is not entirely satisfactory, since it is then necessary quite firmly in the jaws of the so doing the ring may be deformed or partially closed so that it is unfit to complete the fastening operation. When the tool is provided with a magazine for a stack of rings which are automatically fed sidewise into the jaws of the tool in their opening movement, employment of a point of the ring for stretching the fabric into place is precluded due to the the magazine or the rings adjacent When the tool is of the power-operated type, the ring is held only loosely in the jaws prior to clinching and therefore its points cannot be employed for positioning the fabric.
It is therefore an object of this invention to provide, in a tool of the character described, means independent of the hog-ring for stretching the fabric into place.
the one in the jaws.
further appreciation of its features and advantages, reference is to be had to the following detailed description and accompanying drawing, and to the appended claims.
In the drawing:
Figures 1 and 2 are, respectively, elevational views of a hog-ringing ing this invention; and
Figure 3 is a detail view, spike member.
In the drawing, the
side and front tool embodyin perspective, of the numeral ll indicates a lower portion of which a pair of jaw-members l2 are pivotally mounted by means of a bolt l3. The lower or jaw portions M of these members are recessed to 'receive conventional hog-rings, of the shape shown at G5 in Fig. 1 and adapted to be bent, by closing of Powers, San Marino, Calif., to Powers Manufacturing Company,
assignor Los An- Serial No. 10,330
' welded to the upper portions the jaws, to form a closed ring with the pointed end portions of the ring overlapping; the jaws being relieved as indicated at IE to facilitate the overlapping.
Secured, as by welding, to the bottom end of the frame H is a trough-like magazine I! for a supply of hog-rings; the trough conforming generally to the shape of the stacked (or cementedtogether) rings and being open at its bottom. This magazine is substantially the same as that shown in said copending application Ser. No. 753,489, and includes resilient means, indicated at [8, urging the rings toward the jaws into which they are received individually in the opening movement of the jaws after the clinched ring has been released.
The jaw members by a tension spring l2 are biased to open position l9 connected to arms 2 2| of the members. Mounted on the angled top portion of the frame H is a compressed-air operator for the tool, comprising a cylinder member 22 and cooperating piston (not shown) whose stem 23 carries a wedge 24 cooperable with a pair of rollers 25 mounted in the notched top portions 2| of the jaw-members. At the top of the cylinder 22 is an inclined handle 26 having a fitting 21 to which the air-' supply hose is connected.
When air pressure is applied to the piston by manual pressure on the valve-button 28, the wedge 24 is forced downwardly to close the jaws and thereby clinch the hog-ring; the arrangement being such that upon release of the valvebutton the piston is immediately retracted under the force of the bias spring Hi. It will be observed that the magazine is centered in relation to the jaws in all operative positions that there is clearance for parts ofthe work (such as the edge-wire of a frame) adjacent that being fastened to enter the trough.
Interposed between the magazine or trough l1 and the jaws I4 is 29 (shown per se in Fig. 3) whose lower portion is formed to provide a recess 30 conforming to the shape of the interior of the trough, and a pair of spikes 3i which project in substantially the same directions as the points of the hog-ring in the jaws.
The member 29 has a hole 32 through which the bolt [3 passes, and is rigidly secured, as by welding, to the frame II and trough l1 so that it is effectively an integral part of the latter.
In operation, one of the spikes '3! is employed to aid in stretching the fabric of a seat-cushion or the like into place as or before it is fastened by the ring; the direction in which the fabric is being stretched determining which of the two spikes is employed.
The specific embodiment of my invention herein shown and ited only by the scope of the appended claims.
I claim as my invention: 1. In a manually-guided tool for fastening fabfor facilitating into place, comprising means forming a spike projecting from said magazine adjacent said jaws and adapted to piercingly engage the fabric and hold the same in place while it is fastened by 5. A manually-guided tool for fastening fabric. to a frame by means of hog-rings, and comprising a pair of relatively-movable-jaws for holding and clinching the rings, as well as a magazine at one side of said jaws fora stack of rings it is fastened by the ring.
manualstretching of the fabric individually receivable by the jaws in their opening movement: the combination therewith of means for facilitating manual stretching of the jecting in substantially the same directions as the points of the ring to be clinched.
6'. Av manually-guided tool for fastening fabric to a frame by means of hog-rings, comprising: a handleframe; a
RICHARD E; POWERS.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 689,721 Holland Dec. 24, 1901 1,163,617 Dresser Dec. 7, 1915