Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3727655 A
Publication typeGrant
Publication dateApr 17, 1973
Filing dateDec 17, 1971
Priority dateDec 17, 1971
Publication numberUS 3727655 A, US 3727655A, US-A-3727655, US3727655 A, US3727655A
InventorsGarcher H
Original AssigneeGarcher H
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Guard shield for saws
US 3727655 A
Abstract
A guard shield removably attachable to saws such as for example hack saws. The guard shield is removably attachable to the vertical frame member which is forward of the saw grip. It is a curved plastic shield with spaced openings to variably receive the legs of a U-clamp or clip that attaches the shield to the frame member. At the top of the shield is an opening for the top frame member of the saw to pass through. The opening is large enough to adapt the shield universally to a wide variety of saw designs. A dove tailed piece fits into the opening in either a normal or inverted position and this piece has a slot in it through which the top frame member of the slot can pass in either the normal or inverted position of the removable piece.
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent Garcher GUARD SHIELD FOR SAWS [76] Inventor: Harlan .1. Garcher, 15618 Cobalt Street, Sylmar, Calif.

22] Filed@ Dec.17,1971 21] A i.No;:209,203

[52] US. Cl. ..l45/35 R [51] Int. Cl. ..4 ..B27b 21/00 [58] Field oi Search ..145/35 R, 108 R;

[561 References Cited UNITED STATES PATENTS Primary Examiner-Robert C. Riordon Assistant Examiner-Mark S. Bicks Attorney-Albert M. Herzig et'al.

Swain ..'145/35 R [in 3,727,655 [45! Apr. 17, 1973 {57] ABSTRACT A guard shield removably attachable to saws such as for example hack saws. The guard shield is rerriovably attachable to the vertical frame member which is forward of the saw grip. It is a curved plastic shield with spaced openings to variably receive the legs of a U- clamp or clip that attaches the shield to the frame member. At the top of the shield is an opening for the top frame member of the saw to pass through. The opening is large enough to adapt the shield universally to a wide variety of saw designs. A dove tailed piece fits into the opening in. either a normal or inverted position and this piece has a slot in it through which the top frame member of the slot can pass in either the normal or inverted position of the removable piece.

6 Claims, 6 Drawing Figures GUARD SHIELD FOR SAWS SUMMARY OF THE INVENTION The invention is a guard shield attachable to saws particularly hack saws. The purpose of the guard shield is to protect the hand of the user. It is positioned just forwardly of the hand grip of the saw.

Typically, saws of the type referred to have an open frame with a top frame member, a vertical rear frame member and with a tension blade held between the forward frame member and the rear frame member.

In the use of saws of this type there is a considerable hazard to the hand of the user resulting from the blade suddenly sawing through an object causing the knuckles or hand of the user to strike the sawed off end of the work with considerably injury. This type of accident has happened frequently. The operator or users hand may similarly be injured in the event of breakage of the saw blade.

The primary object of the invention is to make available a detachable guard shield which can be easily attached to the saw to protect the users hand and it is particularly a corollary object of the invention to provide a guard shield which is universally adaptable, that is, attachable to the many different designs of saws having different shapes and configurations.

In the preferred form of the invention described herein the guard shield is preferably formed of plastic 7 and" is attachable to the rear frame member of the saw.

' shield is attachable to the frame member by a U-clamp which clamps the frame member with its legs passing through openings in the guard shield. Openings are provided in different positions whereby to adapt the guard shield for attachment to different configurations of saws. A further object of the inventionis to provide this attachment capability. v

BRIEF DESCRIPTION OF THE DRAWINGS Further objects and additional advantages will become apparent from the following detailed description and annexed drawings wherein:

FIG. 1 is an exploded perspective view of a preferred form of the invention;

FIG. 2 is a perspective view of the guard shield in place on a hack saw;

FIG. 3 is a cross-sectional view taken along the line 3-3 of FIG. 2;

FIG. 4 is a view taken along the line 4-4 of FIG. 2;

FIG. 5 is a view of the upper part of the shield showing the replaceable part in inverted position; and

FIG. 6 is an illustrative view of the upper part of the shield attached to a differenttype of saw wherein the removable shield part is left out to accommodate a saw frame having a larger size top frame member;

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to the drawings a preferred form of the shield is shown at 10. It is preferably made of plastic of suitable thickness. At the upper part of the shield there is a rectangular opening 12 the side edges of which are beveled to form tongues adapted to be received in grooves as will be described. Preferably the shield is slightly curved as shown. At the lower intermediate part of the shield there is a narrower slot 14 for a purpose which will be described.

FIG. 2 shows the shield in position on a hack saw. The hack saw as shown is of the conventional type having a hand grip 18 and a vertical frame member 20 just forwardly of the hand grip. The saw frame is of conventional construction being an open frame with a top frame member 22. The blade is shown at 24.

Numeral 26 designates a removable partin the form of a slide curved like the shield and having side edges formed as grooves as shownat 28. The slide piece 26 has an intermediate open ended slot 30. The piece 26 can he slid into the slot 12 the edges of the slot engaging in the grooves 28. FIG. 2 shows the piece 26 in position in the shield 10.

Numeral 36 designates a U-shaped clamp piece having legs 38 and 40 which are notched or serrated as shown. Shield 10 has a series of pairs of spaced rectangular holes or openings as designated at 42, 44 and 46 each pair being adapted to receive the legs of the U- .or 46 in the guard shield 10. Different pairs of holes are provided to accommodate the guard shield assembly to different designs, sizes and configurations of saws. The clamp piece 36 is preferably made of plastic and it is flexible so that when the legs are in place as shown in FIG. 3 the notched or serrated outside surfaces of the legs grip the sides of the openings in the shield 10 and securely hold the guard shield in place. In the form of use of the device shown in FIGS. 1, 2 and 3, slide piece 26 is in place in the slot in the shield 10 and the top frame member 22 of the saw passes through the slot 30 in the piece 26. i

FIG. 5 illustrates the adaptability of the guard shield to another design or configuration of saw wherein the top frame member is at a higher level, In this adaptation of the invention the removable piecef26 has been removed and reinserted in an inverted position so that the open end of the slot 30 is at the top as shown. Thus, the top frame member 22 is similarly accommodated and the assembly is able to accommodate itself to substantial variation in size or dimension of the saw particularly as to the spacing between the top frame member and the saw blade.

FIG. 6 illustrates the adaptation of the universal guard shield to another type of saw wherein the top frame member is round as shown at 44 and is of such a dimension as to fully occupy the slot 12 at the top of the guard shield. In this adaptation of the invention the removable part 26 is left out entirely but the shield nevertheless being held clamped to the side in the same manner.

From the foregoing those skilled in the art will readily understand the nature and construction of the invention, its utilization and the manner in which it achieves and realizes all the objectives as set forth in the foregoing.

The foregoing disclosure is representative of a preferred form of the invention and is not to be interpreted in an illustrative rather than a limiting sense. The invention is to be accorded the full scope of the claims appended hereto.

What is claimed is: g

1. A hand guard for use with open frame saws having a top frame member and vertical member forward of the end grip comprising in combination, a shield member positionable forwardly of the vertical member, and attachment means comprising a U-clamp having legs, engageable with the vertical member and extendable forwardly through openings in the shield and attachable to the shield for firmly holding it in position.

2. A hand guard as in claim 1 wherein the shield has an upper immediate opening adapted to have the top frame member pass therethrough.

3. A hand guard as in claim 2 comprising a removable part adapted to be received in and held in the opening of the shield, said removable part itself having an opening adapted to engage the top frame member.

4. A hand guard as in claim 1 wherein the opening in said part is in the form of a vertical slot closed at one end and open at the other end in said part.

5. A hand guard as in claim 3 wherein the opening in said shield is constructed to receive said removable part in either a normal or an inverted position, the slot in the said part being positioned to have the top frame member of the saw pass through it in either of its positions.

6. A hand guard as in claim 2 wherein said opening in said shield is large enough to receive saw top frame members of different sizes.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2660974 *Jun 30, 1952Dec 1, 1953Kathleen R SwainHack saw guard
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3848649 *Aug 23, 1973Nov 19, 1974Raymond Lee Organization IncSafety device for hacksaw
US5159759 *Jun 26, 1991Nov 3, 1992Fringer Daniel LDebris shield for a hand held power saw
US5325597 *May 21, 1993Jul 5, 1994Clifton Jr Norman EHacksaw hand guard
US5737843 *Oct 3, 1996Apr 14, 1998Fringer; Morris A.Universal devices for protecting the user of a circular saw from flying debris
US6155149 *Jul 22, 1998Dec 5, 2000Colson; RonaldSaw deflection shield
US6820341Apr 18, 2002Nov 23, 2004Black & Decker Inc.Hacksaw having improved blade storage
US7174643 *Nov 2, 2001Feb 13, 2007Van Der Merwe Claude Thomas JaHand tool
US7219436Jan 2, 2004May 22, 2007Barry Henry BUniversal hand guard for a hacksaw
US20050072008 *Nov 2, 2001Apr 7, 2005Van Der Merwe Claude Thomas JamesHand tool
US20080216328 *Mar 8, 2007Sep 11, 2008Ryan AdkinsHand guard for use with saws
USD753458 *Apr 29, 2015Apr 12, 2016Robert NasonKnuckle guarding saw frame
Classifications
U.S. Classification30/514, 30/295
International ClassificationB27B17/00
Cooperative ClassificationB27B17/0025
European ClassificationB27B17/00D