CN-115139347-B - Blade unit and electric razor

CN115139347BCN 115139347 BCN115139347 BCN 115139347BCN-115139347-B

Abstract

The invention provides an electric razor and a blade unit for reducing damage to skin during shaving. An electric razor (300) is provided with a head (320) which holds a comb-shaped outer blade (100) and a net-shaped outer blade (210) extending in a first direction so as to be movable in a second direction intersecting the first direction, a comb-blade urging member (231) which urges the comb-shaped outer blade (100) in the second direction, a net-blade urging member (232) which urges the net-shaped outer blade (210) in the second direction, and an engagement mechanism (240) which moves the comb-shaped outer blade (100) in a state in which the comb-shaped outer blade (100) does not protrude from the net-shaped outer blade (210) relative to the unit table (230) when the net-shaped outer blade (210) is moved toward the unit table (230) against the urging force of the net-blade urging member (232).

Inventors

KOMORI SHUNSUKE
HASHIMOTO TOSHIHARU
OKURA SHOKI
Atsushi Ikemoto

Assignees

松下知识产权经营株式会社

Dates

Publication Date: 20260508
Application Date: 20220211
Priority Date: 20210330

Claims (9)

1. An electric razor comprising a head portion having a comb-shaped outer blade and a comb-shaped blade holding member, and a net blade unit having a net-shaped outer blade and a net-shaped blade holding member, wherein, The electric razor includes a unit table which holds the comb-shaped outer blades and the mesh-shaped outer blades extending in a first direction so as to be movable in a second direction intersecting the first direction, The head is provided with: a comb blade urging member urging the comb-shaped outer blade to one side in the second direction; A net blade urging member urging the net outer blade to one side in the second direction, and An engagement mechanism that moves the comb-shaped outside blade in a state where the net-shaped outside blade protrudes toward one side in the second direction than the comb-shaped outside blade when the net-shaped outside blade is moved toward the other side in the second direction against the urging force of the net-blade urging member, The cell table includes: a first limiting part for limiting the protruding amount of the comb-shaped outer blade relative to the unit table, and A second limiting portion limiting a projecting amount of the net-shaped outside blade with respect to the unit table, The second restriction portion is configured such that the comb-shaped outer blade restricted by the first restriction portion does not protrude from the net-shaped outer blade restricted by the second restriction portion, The unit table has a first guide portion that guides the comb-shaped outer blade in the second direction, The cell table has a second guide portion that guides the net-shaped outside blade in the second direction, The cell table has a frame portion, The first guide portion and the second guide portion have grooves extending in a second direction at the frame portion of the unit table, The first guide portion has the first restriction portion, The second guide portion has the second restriction portion, The first limiting part and the second limiting part are provided with fixed side protruding parts, The fixing-side protruding portion protrudes in a third direction so as to partially cover the grooves provided as the first guide portion and the second guide portion, A blade unit side protrusion protruding in the third direction is provided on the comb blade holding member and the net blade holding member, and The blade unit side projection is opposed to the fixed side projection in the second direction, The comb blade urging member and the net blade urging member are coil springs, In a state where the comb-shaped outside blade is not pressed in the second direction, the urging force of the comb-blade urging member maintains a state where the movement of the comb-shaped outside blade is restricted by the first restricting portion, In a state where the mesh-shaped outside blade is not pressed in the second direction, the urging force of the mesh-shaped outside blade urging member maintains a state where the movement of the mesh-shaped outside blade is restricted by the second restricting portion.
2. The electric razor according to claim 1, wherein, The engagement mechanism includes: A first engaging portion in fixed relation to the comb-shaped outer blade and protruding toward the side of the net-shaped outer blade in a third direction intersecting the first direction and the second direction, and A second engaging portion in fixed relation to the net-shaped outside blade and protruding toward the side of the comb-shaped outside blade in the third direction, In the second direction, the first engaging portion is disposed at a position closer to the other side of the second direction than the second engaging portion, and the first engaging portion and the second engaging portion are engaged in a state where the mesh-shaped outer blade protrudes from the comb-shaped outer blade.
3. The electric razor according to claim 1 or 2, wherein, The comb-shaped outer blade is provided with: A rod-shaped base portion extending in the first direction, and And a cantilever-rod-shaped open blade portion protruding from the base portion in a direction intersecting the first direction.
4. The electric razor according to claim 3, wherein, The comb-shaped outer blade is provided with: A plate-shaped mounting portion extending in the first direction and a second direction intersecting the first direction, and A bending blade portion connecting the base portion and the mounting portion, The bending blade portion includes: a protruding portion protruding from the base portion along a third direction intersecting the first direction and the second direction; a bending part connected with the top end of the protruding part, and And a connecting portion connecting the bending portion and the mounting portion.
5. The electric razor according to claim 4, wherein, The coupling portion is inclined to approach the base portion in the third direction as being away from the bending portion in the second direction, and couples the bending portion and the mounting portion.
6. The electric razor according to claim 4, wherein, The end surface of the bending portion is disposed at a position farther from the base portion than the tip end surface of the open blade portion in a third direction intersecting the first direction and the second direction.
7. The electric razor according to claim 1 or 2, wherein, At least one selected from the group consisting of the comb-shaped outer blade and the mesh-shaped outer blade is curved in such a manner that a central portion protrudes from both end portions in a plane extending in the first direction and the second direction.
8. The electric razor according to claim 1 or 2, wherein, The comb-shaped outer blades are arranged on both sides of the comb-shaped outer blades in a third direction intersecting the first direction and the second direction.
9. A blade unit which is a blade unit provided with a comb-shaped outer blade and a net-shaped outer blade and mounted on an electric razor, the blade unit comprising a comb-shaped outer blade and a net-shaped blade unit, the comb-shaped blade unit comprising the comb-shaped outer blade and a comb-shaped blade holding member, the net-shaped blade unit comprising the net-shaped outer blade and the net-shaped blade holding member, wherein, The blade unit is provided with: A unit table that holds the comb-shaped outer blade and the net-shaped outer blade extending in a first direction so as to be movable in a second direction intersecting the first direction, respectively; A comb blade urging member that urges the comb-shaped outer blade in the second direction with respect to the unit table; A net blade urging member for urging the net outer blade in the second direction with respect to the unit table, and An engagement mechanism that moves the comb-shaped outside blade in a state in which the comb-shaped outside blade does not protrude from the net-shaped outside blade with respect to the unit table when the net-shaped outside blade is moved toward the unit table against the urging force of the net-blade urging member, The cell table includes: a first limiting part for limiting the protruding amount of the comb-shaped outer blade relative to the unit table, and A second limiting portion limiting a projecting amount of the net-shaped outside blade with respect to the unit table, The second restriction portion is configured such that the comb-shaped outer blade restricted by the first restriction portion does not protrude from the net-shaped outer blade restricted by the second restriction portion, The unit table has a first guide portion that guides the comb-shaped outer blade in the second direction, The cell table has a second guide portion that guides the net-shaped outside blade in the second direction, The cell table has a frame portion, The first guide portion and the second guide portion have grooves extending in a second direction at the frame portion of the unit table, The first guide portion has the first restriction portion, The second guide portion has the second restriction portion, The first limiting part and the second limiting part are provided with fixed side protruding parts, The fixing-side protruding portion protrudes in a third direction so as to partially cover the grooves provided as the first guide portion and the second guide portion, A blade unit side protrusion protruding in the third direction is provided on the comb blade holding member and the net blade holding member, and The blade unit side projection is opposed to the fixed side projection in the second direction, The comb blade urging member and the net blade urging member are coil springs, In a state where the comb-shaped outside blade is not pressed in the second direction, the urging force of the comb-blade urging member maintains a state where the movement of the comb-shaped outside blade is restricted by the first restricting portion, In a state where the mesh-shaped outside blade is not pressed in the second direction, the urging force of the mesh-shaped outside blade urging member maintains a state where the movement of the mesh-shaped outside blade is restricted by the second restricting portion.

Description

Blade unit and electric razor Technical Field The present invention relates to a blade unit and an electric razor for shaving body hair of an animal such as a human. Background Conventionally, there are blade units including a plurality of outer blades for electric razors. The blade unit is configured such that when the blade unit is pressed against the skin surface during use of the electric razor, each of the outer blades independently sinks with the irregularities of the skin. The blade unit described in patent document 1 employs a mechanism in which each outer blade independently sinks within a predetermined range, and when the predetermined range is exceeded, each outer blade sinks in linkage. Prior art literature Patent literature Patent document 1 Japanese patent laid-open No. 11-267376 Disclosure of Invention Problems to be solved by the invention However, the conventional blade unit has a structure in which the other types of outer blades can be further lowered than the slit-shaped outer blade for lifting and cutting the relatively long body hair, and therefore the edge of the distal end of the slit-shaped outer blade may cause a strong damage to the skin. The present invention has been made in view of the above-described problems, and an object thereof is to provide a blade unit in which an outer blade for lifting body hair does not protrude from other types of outer blades, and an electric razor including the blade unit. Solution for solving the problem In order to achieve the above object, an electric razor according to one of the present invention includes a head portion having a comb-shaped outer blade and a net-shaped outer blade, wherein the head portion holds the comb-shaped outer blade and the net-shaped outer blade extending in a first direction so as to be movable in a second direction intersecting the first direction, the head portion includes a comb-blade biasing member that biases the comb-shaped outer blade in the second direction with respect to the head portion, a net-blade biasing member that biases the net-shaped outer blade in the second direction with respect to the head portion, and an engagement mechanism that moves the comb-shaped outer blade in a state in which the net-shaped outer blade protrudes toward the head portion than the comb-shaped outer blade when the net-shaped outer blade is moved toward the head portion against the biasing force of the net-blade biasing member. In order to achieve the above object, a blade unit according to another aspect of the present invention is a blade unit that includes a comb-shaped outer blade and a net-shaped outer blade, and is attached to an electric razor, the blade unit including a unit table that holds the comb-shaped outer blade and the net-shaped outer blade extending in a first direction so as to be movable in a second direction intersecting the first direction, a comb-blade biasing member that biases the comb-shaped outer blade in the second direction with respect to the unit table, a net-blade biasing member that biases the net-shaped outer blade in the second direction with respect to the unit table, and an engagement mechanism that moves the outer blade in a state in which the comb-shaped outer blade does not protrude from the net-shaped outer blade with respect to the unit table when the net-shaped outer blade is moved toward the unit table against the biasing force of the net-blade biasing member. ADVANTAGEOUS EFFECTS OF INVENTION According to the present invention, the comb-shaped outer blade is used to exert a lifting effect higher than that of the net-shaped outer blade on hairs growing in different directions or on the lying hair, and the mechanism for making the comb-shaped outer blade not protrude from the net-shaped outer blade can be used to achieve both a good lifting effect on body hairs and suppression of damage to skin. Drawings Fig. 1 is a perspective view showing an electric razor according to the present embodiment. Fig. 2 is a perspective view showing the blade unit according to the present embodiment. Fig. 3 is a perspective view showing the comb-shaped outer blade according to the present embodiment. Fig. 4 is a side view of the comb-shaped outer blade of the present embodiment. Fig. 5 is a perspective view showing the vicinity of the opening blade portion and the bending blade portion of the present embodiment. Fig. 6 is a plan view showing the vicinity of the opening blade portion and the bending blade portion of the present embodiment. Fig. 7 is a view showing a state in which the bending blade portion and the opening blade portion are aligned in the first direction and viewed from the first direction. Fig. 8 is a perspective view showing an exploded view of the comb blade unit having the comb-shaped outer blade according to the present embodiment. Fig. 9 is a perspective view showing the comb blade unit in the assembled state of the present embodiment. Fig. 10 is a perspective view showing an explod