Hand-Held Hair Straightener with a Cosmetic Product Distribution System

Abstract

Provided is a hand-held hair styling device consisting of hair shaping or styling mechanism, with at least one hair treatment zone, which is at least partly mobile, cosmetic product distribution mechanism including product application mechanism located in or near hair treatment zone, and feed line to supply application mechanism from cosmetic product reservoir, including at least one pump; where the device consists of two jaws which are connected by a hinge to move between an open and closed position, which create working surfaces forming hair shaping mechanism and hair treatment zone when the jaws are closed, electrical heating mechanism of treatment area and where the pump is operated by the movements of jaws or working surfaces relative to one another.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]This invention falls in the technical field of hand-held devices used for styling or shaping hair. In the preferred, but not exclusive, application the invention falls in the field of hand-held electrical devices used for drying and / or shaping hair using, in particular, a hot air flow or contact heat in the same way as, including but not limited to, hand-held electrical hard dryers, heated brushes and straightening and curling irons.[0003]2. Description of the Related Art[0004]When hair is styled, as each lock is treated, it may be desirable to apply a cosmetic product to the hair. To do so, a patent FR 2 136 410 described a comb which blows air, the sleeve of which contains an electrical fan to blow air in the direction of a hair treatment area determined by the comb. The sleeve of the comb also includes a pressurized cosmetic fluid reservoir connected by a feed line to a sprayer located in the hair treatment area. In ...

AI Technical Summary

Benefits of technology

[0015]The pump, which is designed to be activated automatically by movement of the shaping mechanism, is used to control the quantity of product distributed, the size of the area where hair is treated and, e.g., the length of each lock of hair treated so that the quantity is precisely determined. Further, based on the invention, since cosmetic product supply is based on the mechanical action on the pump, product quantity distributed is not dependent on the heat and humidity of the hair or the hand-held device. Based on the invention, in addition, the device allows a larger quantity of cosmetic product to be distributed or applied than can be applied using a system covered by patent EP 1 071352.

[0021]Such an implementation allows the pump to be manufactured at least cost. This low manufacturing cost means, in particular, that the flexible body may be changed regularly and treated as a consumable, thereby increasing the hygiene of a device based on the invention.

[0023]Accordingly, squeezing the pressure organ pushes the product out of the pumping chamber while the elasticity of the body is used to suck the product into the pumping chamber when the pressure organ is not pushing on the flexible body. This reversible deformation of the pump body allows the flexible body and movement mechanism to be manufactured at least cost.

[0027]However, such an implementation mode is not a requirement of the invention. Therefore, in accordance with one characteristic of the invention, the distribution mechanism includes a cosmetic product reservoir located upstream of each pump. This separate pump reservoir increases the independence of the device based on the invention.

[0029]The reservoir may be a flexible, non-elastic sack, preferably without a vent. The sack has no elastic resistance and allows atmospheric pressure to be transferred to the cosmetic content. Such a reservoir is inexpensive.

[0033]In such a straightener or curling iron configuration: a longitudinal pressure organ is located on the jaw facing the jaw containing the fluid distribution mechanism. This longitudinal pressure organ is oriented with respect to the cosmetic distribution mechanism to come into contact with this mechanism when the device is closed. The organ may be a rigid, parallelepiped rod attached to the distribution mechanism. The organ may also include a thin layer of foam on its external surface. This layer allows uniform distribution of the cosmetic on the two application surfaces designed to press against the hair when the fluid is distributed.

Problems solved by technology

However, this system does not allow precise quantities of the product to be applied and requires the user to press the push button to distribute the product, which is not always easy given the location of the hair to be treated.

Further, cosmetic product application is neither consistent nor even.

In addition, to treating hair, the user must press the push button many times, which requires relatively significant effort causing some discomfort.

Such a hair dryer does indeed allow the automatic application of a small quantity of a cosmetic product without the user having to worry about the quantity of product applied, but suffers from the disadvantage of not being able to ensure the uniform application of the cosmetic product to the hair, as application depends on heat and / or humidity, which could vary significantly depending on the location of the hair treated.

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