US1761263A - Method of making ratchet wrenches - Google Patents

Description

Julie 3, 1930. F. A. HAIST I 1,761,263

METHOD OF MAKING RATCHET WhENCHES Filed Aug; 9, 1927 A 1 g I m I w ":1 II'IH? HIE.-

f'; I m- I: mM/lmwz W mmg Patented June 3, 1930 UNITED STATES- PATENT Fries FOSTER A. HAIST, OF BUFFALO, NEW YORK, ASSIGNOE TO THE KEYSTONE MFG. 60.,

OF BUFFALO, NEW YORK, A CORPORATION OF NEW YORK METHOD OF MAKING RATGHET WRENCHES Application filed August 9, 1927. Serial No. 211,733.

This invention relates to a ratchet wrench and has the object to provide a strong and durable wrench which is of simplified construction capable of being manufactured at '5 reduced cost, and incapable of being dismembered by ordinary means after it is manufactured.

In the accompanying drawings Fig.1 is a plan view of a ratchet wrench constructed in accordance with my invention.

Fig. 2 is a longitudinal section of the same taken on line 22, Fig. 1.

Fig. 3 is a longitudinal section of the same taken on line 33, Fig. 2.

Fig. 4 is a longitudinal section similar to Fig. 2, but showing only the body of the wrench bent into the position which it assumes when forming the pawl guide-way 2 therein.

Fig. 5 is a cross section taken on line 5-5, Fig. 2.

Similar characters of referenceindicatelike parts in the several figures of the drawings.

2 In its general organization this wrench comprises a body, a rotor journaled on the body,and adapted to engage the part to be turned or held, and a which permits the rotor to turn on the body in one direction but prevents rotation of the same in the opposite direction.

The body comprises a head 10 which is of circular form and a handle 11 projecting laterally from the head and preferably formed integrally therewith of bendable metal such as drop forged steel. The head is provided with a circular eye or opening, the main central bearing part 12 of which is comparetively wide and of cylindrical form and one end of which is contracted to form an inwardly facing annular inner shoulder 13 and the other end of which is enlarged to form an outwardly facing outer shoulder 14. Adjacent to the outer shoulder 14 the head of the body is provided with an annular bead or rim 15.

' object ratchet mechanism I ter pro Extending radially from the bore of the main bearing part 12 of the central opening of the head into the handle is a pocket 16 which is adapted to receive the pawl 17 of the ratchet'mechanism and serve as a guide- 5 way therefore and also the spring 18 of the mechanism whereby the pawl is yieldingly held in its projected position. The pocket is preferably square in cross section to conform to the cross section of the pawl and thereby prevent the latter from turning but permitting the same to slide freely radially. The pawl normally projects with its front end into the opening of the head and the spring 18 interposed between the rear end of the co pawl and'the bottom of the pocket.

Within the eye or opening of the head is arranged a rotor or jaw 19 which is preferably providedwith a flat sided socket 20 to fit a screw nut screw head, bolt head or other as of corresponding form which is to be turned or held against turning. This central part of the periphery of this rotor between opposite sides thereof is enlarged and provided with a plurality of ratchet teeth 21 which engage their outer ends with the bearing at the headand opposite sides of this enlarged central part of the'rotor or jaw is provided with reduced ends forming annular shoulders 22, 23 on opposite sides of the same. The lower shoulder 22 of this rotor engages with the inwardly facing shoulder of the head. The numeral 24 represents a locking ring or washer which engages its outer edge with the outwardly facing shoulder on the 8 head and its inner edge with the upper shoulder 23 of the rotor and thereby extends over i the adjacent end of the teeth of the rotor. This locking ring or washer is held in position by the bead or rim 15 which is spun or riveted from the head over the outer edge portion ofthe locking ring, so that the lat- 'ects underneath said ring, as shown in Fig.2.

The pocket for the reception of the ratchet pawl and spring is formed in the body after deflecting the outer part of the head relative to the inner part, as shown by full lines in Fig. 4, in which position of the parts the inner part of the bore of the head next to the handle is brought on a line which clears the outer part of the head and therefore permits of first boring a hole in the handle and the adjacent part of the head by a drill arranged alongisde of the outer part of the head and then driving a breach into the bored hole so as to change the cross sectional shape of the same from a round to square. After the guide pocket has been thus formed the outer part of the head is straightened or bent back into line with the inner part thereof, as shown by dotted lines in Fig. 4, and full lines in Fig. 2, preparatory to be assembled with the other parts of the wrench.

This manner of forming the guide-way for the ratchet pawl and spring in the body avoids the use of separate parts, thereby reducing the cost and also .possible loss of parts and reduced usefulness of the tool.

After the parts have been thus assembled, the nut, bolt head or other part which is received by the rotor, may be turned upon rocking the handle and head, which movement causes the rotor to turn intermittently due to the action of the ratchet mechanism between the same. 7

Not only in this wrench very simple and inexpensive in construction but the same has no parts which can become loose and get out of order.

l urthermore, the full strength of the body of the wrench is maintained inasmuch as that part of the head opposite the guide pocket is left solid instead of being weakened as would be the case if the same were perforated when iorming the guide pocket without deflecting this part of the head.

I claim as my invention V 1. The hereindescribed method of making a socket wrench which consists in providing a blank of a body with a circular opening, bending one part of the body on one side of said opening laterally out of line with the part on the diametrically opposite side of said opening, forming a pocket in said body opposite the laterally bent part thereof so that the pocket extends radially outward from said opening and is arranged in a plane extending over the laterally bent. part of said body, and returning the laterally bent part of said body to its normal position in line with the part containing said pocket.

2. The herein described method of making a socket wrench which consists in providing the blank of a body with a circular opening, bending one part of the body on one side of said opening, laterally out of line with the part on the diametrically opposite side of said opening, forming a pocket in said body opposite the laterally bent part thereof so ture.

FOSTER A. HAIST.

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