JP2518680B2 - Spare blade barber razor - Google Patents

Description

TECHNICAL FIELD The present invention relates to an improvement of a replaceable blade type barber razor.

(Prior Art) Among such conventional blade-type barber razors that use sliding claws for attaching and detaching the blades, the sliding claws naturally move rearward and drop the blades during use. In order to prevent this, as shown in FIG. 8, a leaf spring is mounted on the upper surface of the main body, and the sliding claw is fixed by the locking action of the projection of the leaf spring and the recess of the sliding claw. .

However, in such a conventional product, the leaf spring is easily lost when it is disassembled to clean the main body and the like, and a recess for mounting the leaf spring must be provided in the main body. There is a drawback that it is costly and expensive. Furthermore,
As is apparent from FIG. 8, there is a drawback that the rear half of the sliding claw is lifted by the upward pressing force of the leaf spring, which becomes an obstacle during use.

(Problems to be Solved by the Invention) The present invention was devised in order to eliminate the above-mentioned drawbacks of conventional products.

(Means for Solving the Problem) The structure of the present invention comprises a main body in which a blade base 2 is connected in front of a handle 1 and a side plate 3 connected to the blade base 2 of the main body by a hinge. Is arranged between the upper edge and the lower edge of the blade base 2 and the side plate 3 so that the hinge axis extends in the longitudinal direction between the blade base 2 and the side plate 3, The blade base 2 and the side plate 3 form two halves of the razor that face each other, and a device for pressing the lower edges of the both halves together is provided, and the lower edges of the both halves are pressed together. By doing so, the spare blade is sandwiched, and the device for pressing the lower edge portions of the both halves against each other is the blade base 2
A concave portion 7 is provided in the upper part of the inner surface of the side plate in the longitudinal direction,
Of the sliding claw facing the concave portion 8 provided in the upper part of the inner surface of the
24 forms a sliding groove for sliding, and the sliding groove is formed so that the width becomes narrower toward the front, and when the sliding claw 24 is positioned in front of the sliding groove, In a replaceable blade barber razor that presses the lower edges of both halves, the upper surface of the main body on which the sliding claw 24 slides is an elongated flat surface and is not inclined midway. The rear surface of the latter half of 24 is formed so as to incline obliquely downward with respect to the sliding direction of the sliding claw 24, and elastic contact is made at the contact point between the latter half of the sliding claw 24 and the upper surface of the main body. It is characterized by being in a state.

Next, the configuration of the present invention will be described with reference to the drawings shown in the embodiments.

The barber razor of the present invention comprises a main body having a blade base 2 connected to the front of a handle 1 and a side plate 3 connected to the blade base 2 of the main body by a hinge.

A concave portion 7 is provided in the longitudinal direction in the upper portion of the inner surface of the blade base portion 2 so as to face a concave portion 8 provided in the upper portion of the inner surface of the side plate 3 to form a sliding groove through which the sliding claws pass. The width of this sliding groove becomes narrower toward the front, so when the sliding claw is slid forward, the sliding groove is expanded by the sliding claw,
The lower edges of both halves (blade base 2 and side plate 3) are pressed against each other.

A long groove 9 having a semicircular cross section is provided in the longitudinal direction below the concave portion 7, and a hinge tube 4 is provided at the tip of the long groove 9 by brazing. Further, a round hole 10 is formed at the rear end of the long groove 9 toward the inside of the handle 1.

Below the long groove 9, a blade body holding surface 12 recessed from the step portion 11 is provided.

At the front of the blade base 2, there is provided a cutout 14 for accommodating a hinge pin head 13, and at a slightly upper portion of the long groove 9, there is provided a short groove 16 having a semicircular cross section into which an auxiliary pin 15 is to be inserted. ing.

As described above, the side plate 3 separate from the razor body is provided with the concave portion 8 for forming the sliding groove on the inner surface thereof, and the elongated groove 17 having a semicircular cross section is provided below the concave portion 8. This long groove 17
The hinge pipes 5, 5 are provided at two positions on the shaft, and a pivot 18 is provided so as to project from the rear end of the side plate 3 in extension of the hinge axis. This pivot 18 is fitted into the round hole 10 of the body. Below the long groove 17, there is provided a blade holding surface 20 which projects from the step portion 19 as a boundary.

The sliding claw 24 has fine irregularities formed on the upper surface of the front half for preventing the finger rest from slipping, and the second half extends slenderly and is inclined downward with respect to the front half. The slope may be linear as shown in FIG. 5, gently curved as shown in FIG. 6, or may be bent in the middle as shown in FIG. The sliding claw 24 is inserted into a sliding groove formed by the concave portions 7 and 8 of both halves facing each other, but the latter half of the sliding claw 24 is inside a shallow groove 26 formed on the upper surface of the main body. Fit in. It is more effective if the shallow groove 26 is inclined so that it becomes shallower toward the rear, that is, the bottom surface of the groove 26 is inclined so as to rise toward the rear. Further, the sliding claw 24 integrally has a cylindrical sliding shaft portion 25 on the lower side of the front half portion thereof. The sliding shaft portion 25 is housed in a guide groove formed by the long grooves 9 and 17 of the main body facing each other.
The sliding shaft portion 25 slides integrally in the guide groove due to the sliding of the sliding pawl 24. The reason for providing the sliding shaft portion 25 is to prevent the sliding pawl 24 from coming off the main body. Is.

A notch 21 for receiving the hinge pin head 13 is provided at a front portion of the side plate 3, and an auxiliary pin is provided at a slightly upper portion of the hinge tube 5.
There is provided a short groove 22 having a semicircular cross section into which 15 is inserted.

A hinge pin head 13 for operating the hinge pin 6 with a fingertip is provided at the end of the hinge pin 6, and a short auxiliary pin 15 projects from the head 13 directly above the hinge pin 6.

(Operation / Effect) The present invention has the above-described configuration. To assemble the same, the pivot 18 is fitted into the round hole 10 and the blade base 2 and the side plate 3 are faced to each other and stacked, and the hinge pin is attached from the front of the razor. Insert 6 into hinge tubes 4,5. At this time, the hinge pin head 13 is accommodated in the cutouts 14 and 21, and at the same time, the auxiliary pin 15 is inserted into the auxiliary pin hole 23 formed by the short grooves 22 and 16. Thereafter, the blade body (not shown) is sandwiched between the blade body holding surfaces 12 and 20, and the upper edge of the blade body is applied to the step portion 11 to determine the position of the blade body. Then, the sliding claw 24 is slid forward to press and fix the blade body from both sides by the blade base portion 2 and the side plate 3, and the sliding groove is expanded to both sides. As a result, the blade body is pressed and pinched and completely fixed.

Here, the rear surface of the rear half of the sliding claw 24 is formed so as to incline obliquely downward with respect to the sliding direction of the sliding claw 24,
The sliding claw 24 can be fixed because the contact point between the latter half of the sliding claw 24 and the upper surface of the main body is in the elastic pressure contact state.

There was a conventional product that fixed the sliding claw by pressing it against the upper surface of the main body with its elastic force, but in the conventional product, as a means for fixing the sliding claw, the rear part of the elongated upper surface of the main body goes up. The sliding claw was fixed as a slanted surface and brought into a pressure contact state when the sliding claw was pulled backward. However, in the conventional product, there is a risk that the sliding claw will gradually move forward and loosen due to the action of this inclined surface, but in the present invention, since the inclined surface does not exist on the upper surface of the main body, There is no risk that the sliding claw will move naturally and loosen.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a front view of a blade base, FIG. 2 is a front view of a side plate, FIG. 3 is a front view of a hinge pin, and FIG. 4 is a blade base and side plates. FIGS. 5 to 7 are front views of the sliding claws, and FIG. 8 is a front view of a conventional blade base portion. 1 ... Handle, 2 ... Blade base, 3 ... Side plate 4,5 ... Hinge tube, 6 ... Hinge pin, 24 ... Sliding claw

Claims (1)

(57) [Claims] 1. A handle (1) comprising a main body in which a blade base (2) is connected in front of the handle (1) and a side plate (3) connected to the blade base (2) of the main body by a hinge, the hinge comprising: An upper edge and a lower edge of the blade base (2) and the side plate (3) so that a hinge axis extends in the longitudinal direction between the blade base (2) and the side plate (3). And a device for arranging the blade base portion (2) and the side plate (3) to form opposite halves of the razor, and pressing the lower edges of the halves against each other.
The replacement blade is sandwiched by pressing the lower edges of the both halves to each other, and the device for pressing the lower edges of the both halves to each other is an inner surface of the blade base (2). A recess (7) is provided in the upper part in the longitudinal direction, and a recess (8) provided in the upper part of the inner surface of the side plate (3) faces to form a slide groove for sliding of the slide claw (24). However, the sliding groove is formed so that the width becomes narrower toward the front,
In a replaceable blade barber razor that presses the lower edges of the two halves when the sliding claw (24) is located in front of the sliding groove, the sliding claw (24) slides. The upper surface of the main body is a slender flat surface and is not inclined midway, and the back surface of the rear half of the sliding claw (24) is inclined obliquely downward with respect to the sliding direction of the sliding claw (24). A blade-type razor for barber blades, characterized in that it is formed into a curved shape and is in an elastic pressure contact state at the contact point between the rear half of the sliding claw (24) and the upper surface of the main body.