Blade grinding mechanism for razor

Information

  • Patent Grant
  • 6694618
  • Patent Number
    6,694,618
  • Date Filed
    Tuesday, September 3, 2002
    22 years ago
  • Date Issued
    Tuesday, February 24, 2004
    20 years ago
Abstract
A blade grinding mechanism for a razor consists of a razor dock, at least two razor blades located in the razor dock, and two grinding means located respectively below each of the razor blades in the razor dock. The grinding means has a grinding surface corresponding to the blade edge of the razor blade. After the razor has been used for shaving beards, both of the grinding means can be used to clear the residual beard debris, and be moved to the left and right side to grind and sharpen the blade edge of the razor blade.
Description




FIELD OF THE INVENTION




The present invention relates to a blade grinding mechanism for a razor and particularly a grinding mechanism for clearing beard debris and grinding razor blades.




BACKGROUND OF THE INVENTION




The commonly used double-blade safety razors have two overlapped razor blades located in a razor dock. The two razor blades can be used to shave beards or mustaches at the same time and offer more effective shaving than single blade razors. However, as the gap between the two razor blades is very small, residual beard debris trapped between the razor blades after shaving is difficult to remove and clear. It not only creates sanitary problems, life span of the razor blades also is shortened. Some producers have developed cleaning mechanisms located in the gap of the two razor blades to sweep away the residual beard debris trapped therein. Although such devices can resolve the cleaning problem, they do not help much about another problem of dull blade edges that happens after the razor has been used for a period of time. Thus the razor blades have to be replaced frequently. It becomes a significant waste and expense to users, for the razor blade is usually the most expensive part of the razor.




SUMMARY OF THE INVENTION




Therefore the primary object of the invention is to resolve the aforesaid disadvantages. The invention provides a grinding mechanism that has a grinding surface to grind the blade edges.




To achieve the foregoing object, the blade grinding mechanism of the invention includes a razor dock for housing two pieces of razor blades and two grinding means located respectively below each razor blade. Each grinding means has a grinding surface corresponding to the blade edge of one razor blade. After shaving beards with the razor, the grinding means can be used to sweep and clear the beard debris, and also can be moved to the left and right side to grind and sharpen the blade edges.











The foregoing, as well as additional objects, features and advantages of the invention will be more readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings.




BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a perspective view of the invention.





FIG. 2

is an exploded view of the invention.





FIGS. 3A and 3B

are schematic views of the invention in an operating condition.





FIGS. 4A and 4B

are schematic views of the invention in another operating condition.











DESCRIPTION OF THE PREFERRED EMBODIMENT




Referring to

FIGS. 1 and 2

, the blade grinding mechanism for a razor according to the invention includes a razor dock


1


, at least two razor blades


2


and


3


located in the razor dock


1


, and two grinding means


4


and


5


located respectively below each of the razor blades


2


and


3


. After shaving beards with the razor, the grinding means


4


and


5


may be used to clear the residual beard debris trapped between the two razor blades


2


and


3


, and also to grind and sharpen the blade edges of the razor blades


2


and


3


.




The razor dock


1


consists of an upper frame


11


and a lower frame


12


. The upper frame


11


has a front slot


111


formed at one end thereof to allow the razor blades


2


and


3


to expose outside and a rear slot


112


formed at another end to enable the grinding means


4


and


5


to expose outside. The upper frame


11


and the lower frame


12


further have respectively first coupling sections


113


and


121


corresponding to each other, and second coupling sections


114




a


,


114




b


,


122




a


and


122




b


located respectively at two ends thereof to facilitate a secured coupling between the upper frame


11


and the lower frame


12


. The lower frame


12


also has a jutting lug


123


located at a desired position to fasten to a handle


6


of the razor. The lower frame


12


further has a housing space


124


formed on one end for accommodating the razor blades


2


and


3


, and the grinding means


4


and


5


. The lower frame


12


has another end formed operation troughs


125


and


126


to house necks


42


and


52


that are extended respectively from the grinding means


4


and


5


, and an elastic section


54


. There is a retain flange


127


formed at one side of the housing space


124


to thoroughly scrape off the beard debris when the grinding means


4


and


5


are being pushed out.




The two razor blades


2


and


3


are located between the upper frame


11


and the lower frame


12


, and have respectively loading slots


21


and


31


to enable the first coupling sections


113


and


121


to pass through. The two razor blades


2


and


3


further have respectively notches


22


and


32


formed on two ends thereof to allow the second coupling sections


114




b


and


122




b


to pass through so that the two razor blades


2


and


3


may be held securely in the razor dock


1


after the upper frame


11


and the lower frame


12


are coupled and assembled.




The two grinding means


4


and


5


are located respectively below the razor blades


2


and


3


in the razor dock


1


, and have respectively a debris sweeping section


41


and


51


for removing the beard debris trapped between the two razor blades


2


and


3


. The debris sweeping sections


41


and


51


connect respectively the necks


42


and


52


that have respectively a cavity


43


and a bulge


53


for coupling with each other so that the two grinding means


4


and


5


may be moved together at the same time. The neck


52


further connects to an elastic section


54


which provides a driving force to return the grinding means


4


and


5


to their original positions after having been pushed out. The elastic section


54


has one end formed a teeth section


541


to enable an user to move the grinding means


4


and


5


to the left and right side more conveniently. There is an operation space


55


formed between the elastic section


54


and the debris sweeping section


51


to enable the grinding means


4


and


5


to move to the left and right side. When the grinding means


4


and


5


are moved to the left or right side, the grinding surfaces


411


and


511


can grind the blade edges of the razor blades


2


and


3


. For assembly, place sequentially the two razor blades


2


and


3


, and the two grinding means


4


and


5


into the housing space


124


of the lower frame


12


, then couple the upper frame


11


with the lower frame


12


to hold the two razor blades


2


and


3


, and the two grinding means


4


and


5


securely in the razor dock


1


to form a completed safety razor.




Refer to

FIGS. 3A and 3B

for an operating condition of the invention. Move the elastic section


54


forwards until reaching the first coupling sections


113


and


121


, the debris sweeping sections


41


and


51


may be moved forwards to scrape and sweep off the residual beard debris trapped between the two razor blades


2


and


3


.




Refer to

FIGS. 4A and 4B

for another operating condition of the invention. Move the elastic section


54


to the left or right side, the necks


42


and


52


will also be moved sideward in the operation space


55


until reaching the first coupling sections


113


and


121


, and the grinding surfaces


411


and


511


of the debris sweeping sections


41


and


51


are moved against the blade edges of the two razor blades


2


and


3


. Thus the two razor blades


2


and


3


may be ground and sharpened.




While the preferred embodiment of the invention has been set forth for the purpose of disclosure, modifications of the disclosed embodiment of the invention as well as other embodiments thereof may occur to those skilled in the art. Accordingly, the appended claims are intended to cover all embodiments which do not depart from the spirit and scope of the invention.



Claims
  • 1. A blade grinding mechanism for a razor, comprising:a razor dock; at least two razor blades located in the razor dock; and at least two grinding means located in the razor dock below respectively the razor blades for removing residual beard debris trapped between the two razor blades having respectively a debris sweeping section with a grinding surface formed thereon; wherein the grinding means are movable to the left and the right side for grinding blade edges of the razor blades.
  • 2. The blade grinding mechanism for a razor of claim 1, wherein the debris sweeping sections connect respectively to a neck, the neck connecting to an elastic section which provides a driving force to return the grinding means to their original positions after having been pushed out.
  • 3. The blade grinding mechanism for a razor of claim 2, wherein the elastic section has one end formed a teeth section to facilitate the moving of the grinding means to the left and the right side.
  • 4. The blade grinding mechanism for a razor of claim 2 further having an operation space located between the elastic section and the debris sweeping section.
  • 5. The blade grinding mechanism for a razor of claim 1, wherein the grinding surface is formed by a ceramic material.
  • 6. The blade grinding mechanism for a razor of claim 1, wherein the grinding surface is formed by metal.
US Referenced Citations (7)
Number Name Date Kind
2065367 Crane Dec 1936 A
2200246 Guimond May 1940 A
2530499 Auerbach Nov 1950 A
2933808 Friel et al. Apr 1960 A
3167888 Shanley Feb 1965 A
4939840 Butka Jul 1990 A
5461781 Pirc Oct 1995 A