US2650421A

US2650421A - Trimming comb

Info

Publication number: US2650421A
Application number: US57703A
Authority: US
Inventors: Wietzel Herman Leslie
Original assignee: Individual
Current assignee: Individual
Priority date: 1948-11-01
Filing date: 1948-11-01
Publication date: 1953-09-01
Anticipated expiration: 1970-09-01

Description

Sept. 1, 1953 L. WIETZEL TRIMMING coma Filed Nov. 1, 1948 m T N W m HERMAN LESLIE WIETZEL 8y JMWJW ATTGRMEYS Patented Sept. 1, 1953 UNITED STATES PATENT OFFICE TRIMMING COMB Herman Leslie Wletzel, Dayton, Ohio Application November 1, 1948, Serial No. 57,703

1 Claim. 1

This invention relates to combs, and particularly to hair trimming or hair cutting combs.

The particular object of this invention is to provide a new and improved construction for hair cutting combs embodying the fewest number of parts thereby resulting in an inexpensive article of manufacture which can readily be cast or molded and which requires a minimum of machine work after being so cast or molded.

Another object is to provide a hair cutting comb or trimming comb having a cutting blade therein in which the blade is entirely surrounded by the body of the comb and thus is protected at all times, access being had to the blade only in between the teeth of the comb.

A still further object of this invention is to provide a hair cutting or trimming comb having means for ejecting the blade therefrom so that the used blade need not be handled but can be ejected directly from the comb into a suitable waste container and without any difliculty.

Another object of this invention is to provide a hair cutting or trimming comb so constructed that it can selectively be used with or without the trimming blade and in which insertion or removal of the blade can readily be accomplished.

These and other objects and advantages will become more apparent upon reference to the following description taken in connection with the accompanying drawings in which:

Figure 1 is an elevational view showing a hair cutting or trimming comb constructed according to my invention;

Figure 2 is an end view thereof looking in the direction of the arrow 22 on Figure 1;

Figures 3 and 4 are vertical sections taken through the device of Figure 1 and indicated by the lines 3--3 and 4-4 on Figure 1;

Figure 5 is a plan section indicated by the line 5-5 on Figure 1;

Figure 6 is a view similar to Figure 1 but showing a modified construction and as partly broken away inorder to show the various parts of the device;

Figure 7 is a vertical section indicated by the line l--1 on Figure 6;

Figure 8 is a perspective view of the construction of Figures 6 and 7;

Figure 9 is a view showing the form of blade which is adapted for use in the device shown in Figures 6 and 8;

Figure 10 is a fragmentary view showing a detent device for use with the ejector member; and

Figure 11 is a perspective view showing still another form of blade and ejector member therefor.

Referring to the drawings more in detail, and particularly to the modification of Figures 1 through 5, the device shown therein comprises a comb part having a back I 0 with teeth l2 extending therefrom in the usual manner.

The comb is preferably secured to a handle l4 in any suitable manner, and it will be understood that the comb and handle could be integrally molded from plastic material, cast of metal as by die casting, or otherwise formed by any suitable and well known manufacturing process, although, as shown, the handle I4 is secured to the comb by means of the screws l6.

Extending lengthwise of the comb there is a cavity consisting of a relatively thin part l8 and which extends part way down into the teeth l2, and the enlarged part extending along the back part I0 of the comb.

The configuration of this cavity is best seen in Figure 3, and it will be seen to form a shouldered cavity adapted for receiving a cutting blade 22 having a clip 24 clamped to the back edge thereof. The blade part of the blade 22 is receivable in the part l8 of the cavity and the enlarged back part is receivable in the enlarged part 20 of the cavity.

The enlarged back part of the blade in being received in the large part of the cavity is operable to support the blade so that the sharpened edge thereof is spaced from the bottom part of the smaller part of the cavity. This prevents the edge of the blade from being dulled by engagement with any part of the comb.

As shown the upper part of the cavity is closed by a cover member 26, but it will be understood that for the purposes of this invention the cavity is to be considered open at one end only, and that suitable molding and casting processes could be followed which would result in the cover member 26 being formed integrally with the back part of the comb.

For retaining the blade 22 in the cavity there may be provided a pin 28 which is positioned in a bore 30 in the end of the comb adjacent the open end of the cavity, so that after the blade is placed in the cavity the pin 28 can be placed in the bore 30 and positively prevent the blade from coming out.

According to this invention there is preferably a slot 32 in the back part IU of the comb which opens into the enlarged part 20 of the blade receiving cavity. Slidably mounted in this slot 32 is an ejector member 34 having a part 36 lying in the enlarged part 2|] of the blade cavity. The

outer part of the ejector member 34 may be knurled as at 38, and it will be evident that when the pin 28 is removed from its bore 30, the said ejector member can be moved as by the thumb and the blade 22 ejected from its cavity. Upon retraction of the ejector member 34 a new blade can be inserted in the cavity and the pin replaced to lock it in position.

It will also be evident that if so desired the ejector member 34 could include a pin, hook, or other engaging device for positively engaging an aperture or notch in the blade to be used and be employed for drawing the blade into the cavity.

Furthermore, rather than employing the pin 28 for retaining the blade in position, the ejector member 34 could include detent means for retaining it in its retracted position, and this, in combination with the aforementioned blade engaging means would suffice for retaining the blade in position in the comb.

Turning now to the embodiment of this invention shown in Figures 6 through 9', this form of the trimming comb is for the purpose of permitting the use of a flat blade rather than one having a thickened back part. The blade to be used in this modification, due to its simpler construction, is less expensive than the blade employed in connection with the first modification.

In general, the comb construction of Figures 6 through 9 is the same as that shown in Figures 1 through 5, and similar numerals are employed but with the addition of a subscript a.

In these figures the part which is slidable in the enlarged part 20a of the blade cavity is a block 50 which has a shouldered slot 52 extending therethroughand adapted for registration with the smaller portion it of the blade receiving slot.

Receivable in the shouldered slot 52 is a shouldered blade 54. It will be apparent that the block 50 is a carrier for the flat shouldered blade. Insertion of the block 50 and blade 54 in the blade receiving cavity is identical with the insertion of the blade 22 of' the first modiiication of this invention. This modification, however, employs a different locking means for retaining the block and blade in position.

As shown the end of the block 50 which is nearest the handle of the comb has a shoulder screw 56 therein that extends through the slot 32a in the back of the comb. When this screw 56 is tightened the block 50 is clamped iii' position in the comb and thus retains the blade in position. Loosening of the screw permits the block to be moved lengthwise of the comb to a position where the blade can be remove-d therefrom. At this time the screw 56 performs a function corresponding to that of the ejector 34 of Figures 1 through 5.

It will be evident that all of the advantages set forth in connection with the modification of Figures 1 through 5 obtain for the modification of Figures 6 through 9, including the fact that the blade is fully protected at all times and will out Only articles introduced between the teeth of the comb, the ejecting means for the blade, and the fact that" the comb can be used in a normal manner when the blade is removed therefrom.

As was explained in connection with the modification of Figures 1 through 5, the blade retaining means of the second modification, which takes the form of the shouldered clamping screw 56, could be any other suitable sort of detent means desired without departing from the spirit of this invention.

In Figure 10 there is shown an arrangement wherein the ejector member 3% has a pair of notches on one side as at 60 and adapted for engagement with these notches is a detent spring 62. This arrangement provides for means for retaining the ejector 38b inposition on the comb and, when the said ejector is fastened to a blade, provides for two axially spaced positions for the said blade. This permits adjustment of the blade along its length to bring the part thereof normally surrounded by the teeth of the comb into the space between the said teeth so as to be effective. This materally increases the life of the blade by utilizing all of the cutting edge thereof rather than only a part.

Figure 11 illustrates a modified arrangement wherein the blade 220 has an aperture as at 64 in one or both ends thereof. The ejector member 380 for use with the blade 220 includes a hook part 66 adapted for engagement with one of the apertures 64 so that the blade can be moved by the ejector in both directions.

It will be understood that this invention is susceptible to modification in order to adapt it to diiferent usages and conditions and, accordingly, it is desired to comprehend such modifications within this invention as may fall within the scope of the appended claim.

I claim:

A hair-trimming comb, comprising a comb body having an integral one-piece back part with teeth extending from one edge thereof, an elongated handle extending outwardly from one end of said back part and having a recessed portion therein, said one end of said back part being releasably secured in said. recess, said back part having a first channel extending inwardly thereof from the edge opposite to that havin said teeth, said channel being open along the said opposite edge the full length of said channel, a. second channel in said back part of narrower width than said first channel and extending inwardly of said back part from the bottom of said first channel whereby to form a shoulder at the bottom of said first channel and extending into said teeth partially through the length thereof, a channel-shaped cap member positioned on the said opposite edge of said back part and extending substantially along the full length thereof for closing the open side of said first channel, said channels receiving a trimming blade having a wide portion positioned in said first channel and a narrow cutting blade positioned in said second channel, a longitudinally extending slot in one side of said back part parallel to the said opposite edge, said slot connecting with said first channel and said recess and extending substantially along the full length of said channel, an ejector member slidably positioned in said slot and comprising a neck portion in said slot, a first enlargement at one end of said neck portion and being positioned in said first channel, said enlargement abutting against one end of said trimming blade positioned therein and slidable in the said first channel to fully eject the trimming blade from said channels, a second enlargement at the opposite end of said neck portion positioned on the outside of said back part and manually engageable for slidably operating said ejector member, said ejector member resting in said recessed portion when said blade is positioned in said channels, and a locking pin removably positioned in an opening in said back part at the Number opposite end of said first channel to retain a 1,274,139 trimming blade in the said channels. 1,338,908 HERMAN LESLIE WIETZEL. 1,572,154 5 1,932,876 References Cited in the file of this patent 2,530,918

UNITED STATES PATENTS Number Name Date Number D. 159,994 Lee Sept. 1950 10 168,499 324,105 Guyton Aug. 11, 1885 25,128 1,212,956 Johnstone Jan. 16, 1917 434,174

Name Date Clark July 30, 1918 Crawford May 4, 1920 McConoughey Feb. 9, 1926 Agostini Oct. 31, 1933 Taylor Nov. 21, 1950 FOREIGN PATENTS Country Date Great Britain Sept. 8, 1921 France Sept. 5, 1922 Great Britain Aug. 27, 1935