US3581396A

US3581396A - Comb attachment for electric shears

Info

Publication number: US3581396A
Application number: US832735A
Authority: US
Inventors: Staffas Broussard Sr
Original assignee: Individual
Current assignee: Individual
Priority date: 1969-06-12
Filing date: 1969-06-12
Publication date: 1971-06-01
Anticipated expiration: 1988-06-01

Abstract

A DOUBLE COMB ATTACHMENT FOR DOUBLE ACTION ELECTRIC HAIR SHEARS IN WHICH THE CUTTING ACTION IS LONGITUDINAL RATHER THAN TRANSVERSE.

Description

June 1, 1-971 5. BROUSSARD, SR 3,581,396

- a COMB ATTACHMENT FOR ELECTRIC SHEARS Filed June 12. 1969 2 Sheets-Sheet 1 :I: J i 32 I '1 I I I a i E l I I [1:11; i mun: 4 mun: 0 FIGURE 0 4 I I 19 q i 1 32 rluune 1| mun: a l 48X \J mun: 1 mun! u INVENTOR. STAFFAS BROUSSARD SR.

June 1, 1971 S. BROUSSARD, SR

COMB ATTACHMENT FOR ELECTRIC SHEARS Filed Jun 12. 1969 2 Sheets-Sheet I mmwm U V O mm 2 United States Patent Office 3,581,396 Patented June 1, 1971 US. Cl. 30-201 6 Claims ABSTRACT OF THE DISCLOSURE A double comb attachment for double action electric hair shears in which the cutting action is longitudinal rather than transverse.

The invention relates generally to instruments for cutting hair and more particularly to double edged combs for use with electric shears.

It is old in the art to provide snap-on single combs for use on hair clippers to mechanically establish the length to which the edge of the hair will be clipped.

Double acting electric shears have just been introduced for cutting hair beyond the edge or fringes on which clippers are used. Usually hair is cut an estimated length by hand shears as it is combed out with a hand comb.

It is an object of the invention to provide means for mechanically establishing the length hair is to be cut rather than by estimation.

Another object of the invention is to provide a double comb for attachment on electric shears for combing the hair out in opposite directions for simultaneous cutting by the double action electric shears.

Another object of the invention is to provide positive snap-on catches for rigidly attaching a double comb to an electric shear.

Other object sand a clearer understanding of the invention may be had by referring to the following description and claims, and the drawings in which:

FIG. 1 is a plan view of the invention operatively attached to electric shears,

, FIG. 2 is an enlarged isometric view exploded to show the various parts of the invention and their relative positions,

FIG. 3 is a perspective view from the bottom of a latching device,

FIG. 4 is an under view of the preferred embodiment of the invention,

FIGS. 5, 6 and 7 are end views of the preferred embodiment of a catch showing the salient features,

FIG. 8 is a side view of the embodiment of FIG. 4,

FIG. 9 is a plan view of a second embodiment of the invention,

FIGS. 10, 11 and 12 are end, bottom and side views respectively of a second embodiment of a catch showing salient features, and

FIGS. 13 and 14 are plan and side views of a third embodiment of a catch showing salient features.

Referring to FIGS. 1, 2 and 3, the invention comprises a new combination of electric hair-cutting shears 19 and a double comb 20 having teeth 22 of a desired thickness. The outboard or leading double tooth 24 of said comb is inwardly extended to form hooks 26 that are adapted to engage the outboard ends 28 of the stationary blade 30 of the double action shears, thereby retaining the front end of said comb on the front end of said shears.

A fastening bar 32 is secured to the double comb 20 by bolts 34 engaging through holes 36 in the comb in tapped holes 38 defined in the fastening bar 32. A hook 40 is provided on the outer end of the fastening bar for engaging the end of the stationary blade of the shears. Shoulders 41 are defined adjacent the end 42 of the fastening bar, and a triangular notch 44 is defined intermediate said shoulders and the end 42.

A catch 46 is provided to engage the inboard end of the fastening bar 32 up to said shoulders 41. The catch is bolted by bolts 47 to the shears body 48 through the stationary blade 30 to engage in tapped holes 50 defined in said body 48. A transverse locking pin 52 is slidably mounted in a bushing 53 provided in catch body 55 and is adapted to engage and disengage with notch 44 of the fastening bar 32. Said locking pin 52 has a reverse end 56 that is chamfered to be retracted by the squared inner end 42 as it is inserted into a channeled recess 54 in said catch and to fit in said notch 44. A spring 57 is mounted in compression on said transverse locking pin 52 engaging against a side of the catch body 46 and a split washer 58 mounted in a peripheral groove 60 defined around the pin 52. A pushbutton end 62, oppositely disposed from the reversed chamfered end 56 of pin 52, is manually actuated against the compression of said spring 57 to retract said chamfered end 56 from the notch 44 and thereby release the fastening bar 32 and attached double comb 20 for slidably retracting from engagement with the electric shears. See FIGS. 4-8.

Referring to FIGS. 9-12 another embodiment of the invention comprises a catch 64 having a body 65 defining a channel 66 similar to channeled recess 54 of the preferred embodiment, for receiving an end of a fastening bar 32. A leaf spring 68 is rigidly attached by an end to the fastening bar 32. The oppositely disposed end is S shaped and adapted to snap engage in the inboard curve 69 of said S a transverse lug 70 fixed to said catch body 65 when said end of the fastening bar 32 is fully inserted in said channel 66. The outer curve 72 of said S serves as a handle to lift the leaf spring 68 clear of lug 70 and thereby release the fastening bar and attached double comb 20" from the shears.

Referring to FIGS. 13 and 14, a third embodiment of the invention comprises another variation of latching the double comb on the shears. A catch 74 having a body 76 defines a channel 78 similar to the

channels

54 and 66 of the preceding embodiments for receiving an end of a fastening bar 32. A trunnion 80 is fixed to the body 76. An L-shaped locking pin 82 is pivotally mounted on the trunnion 80 and a U-shaped spring 84 is compressed between one leg 81 of said L-shaped locking pin 82 and the catch body 76. A fastening bar 86 having double combs attached at the outer end defines a hole 88 adapted to receive the end of depending leg of said locking pin 82. To operate, the end of leg 81 is manually depressed against the compression of spring 84 to pivot locking pin 82 in its trunnion 80 to lift depending leg 88 thereby allowing the insertion of the end of a fastening bar 86 into channel 78. Releasing the end of leg 81 causes the end of leg 90 to engage in said hole 88 locking the fastening bar and attached double comb in the electric shears. To release, one end of leg 81 is depressed and the fastening bar retracted.

To use the invention, the double comb 20 attached as previously described to the fastening bar 32, is held in one hand and the shears 19 in the other. The end 42 of the fastening bar is inserted into the channeled recess 54 (of the preferred embodiment) of the catch 46. With the fastening bar laying fiat against the stationary blade 30 of the shears, the fastening bar and attached double comb is pushed home up to shoulders 41 into the channeled recess 54, the hooked ends 26 of the comb end teeth and the hooked end 40 of the fastening bar 32 engaging respectively over the tips of the end stationary blade double teeth and the end of the stationary blade. As the end 42 of the fastening bar passes into the recess it engages the chamfered reversed end 56 of the locking pin 52 to retract the pin to snap engage in notch 64 simultaneously with the hooked engagement of the comb teeth and fastening bar end, thereby locking both ends of the fastening bar and comb to the shears. The invention is removed from the shears by manually pressing the push button end 62 of the locking pin 52 and pulling the comb to disengage the hooked ends from the stationary blade and the fastening bar from the channeled recess 54.

The second embodiment is operated similarly except the end 72 of the blade spring 68 is manually raised to release the end of the fastening bar to slide from the channel recess.

The third embodiment does not snap engage and the catch 74 must be manually operated as heretofore explained in order to engage and disengage the invention to and from the shears.

What is claimed is:

1. A double-comb attachment for double-acting barber shears having toothed double blades extending longitudinally from one end of said shears, one said blade being stationary and fixed by an end to the shears, said doublecomb attachment comprising in combination: a comb having oppositely disposed ends and sides, said sides having comb teeth adjacent one said end, being straight adjacent the other said end, and refining shoulders spaced longitudinally from said other end, said comb end for use ,in combing hair and said straight-sided end for slidably engaging in a channel up to said shoulders; and complementary fastening means at the respective ends of said comb and the fixed end of said stationary blade for releasably locking said stationary blade and comb against relative movement therebetween.

2. Double-comb attachment as described in claim 1 wherein said complementary fastening means comprise: a longitudinally extending hook on one said end of said comb adapted to engage around the outboard end of said stationary blade; a transverse hook on each of the oppositely disposed teeth adjacent said one end of the comb for engaging over the corresponding end teeth of said stationary blade, said hooks for locking the outboard ends of said comb and stationary blade together; and manually releasable catch means mounted on the fixed end of said stationary blade and defined adjacent the straight end of the comb for cooperation in automatically locking the straight end of the comb to the fixed end of the stationary blade up to said shoulders.

3. Complementary fastening means as described in claim 2 wherein said catch means comprises: a recess defined adjacent the straight end of said comb and intermediate said end and said shoulders; a catch body defining a longitudinally extending channel for receiving the straight end of said comb up to said shoulders; a locking pin movably mounted in said catch body, said locking pin having a recess-engaging end adapted to engage the recess defined in said comb, and a manually operable end for disengaging said pin from said recess; and biasing means mounted on said locking pin and adapted to bias said pin for its recess-engaging end to automatically engage in the recess defined in said comb.

4. Catch means as described in claim 3 wherein said recess is V shaped and defined in a side of said comb, and said recess-engaging end of said locking pin is complementary shaped to engage in said V shaped recess.

5. Catch ineans as described in claim 3 wherein said recess is a hole defined in said comb and said locking pin is L shaped and pivotally mounted on said catch body with one leg depending and adapted to engage in said hole when said comb is inserted in said catch body up to said shoulders.

6. A double comb attachment as described in claim 1 wherein said fastening means comprises: a longitudinal hook shaped on the toothed end of said comb and adapted to engage around the corresponding end of the stationary blade; hooks formed on the respective oppositely disposed end teeth of said comb for engaging the corresponding end teeth of said stationary blade, said hooks when slidably engaged, fasten the tooth end of the comb to the free end of said stationary blade; and a catch mounted on the fixed end of said stationary blade comprising a catch body defining a channel for receiving the other said end of the comb up to the shoulders, and a blade spring mounted on said comb by one of its ends, the free end of said spring defining an S shape; and a transverse shoulder defined on said catch body and adapted to engage a convex curve of said S-shaped blade spring end when the end of said comb is inserted in said channel of the catch body up to said shoulders.

References Cited UNITED STATES PATENTS 1,807,811 6/1931 Van Osdel 30-200 2,702,940 3/ 1955 Dickerson 30-201 2,717,443 9/1955 Turbett 30210 GRANVILLE Y. CUSTER, 111., Primary Examiner