JPH0520295Y2 - - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) This invention relates to a shaving unit mounting structure for a razor.

(Prior Art) Generally, a pair of mounting rails are formed on the shaving unit support portion provided at the tip of the handle of a disposable razor, and a pair of engaging rails are provided on the shaving unit corresponding to these rails. The unit is attached to the handle by inserting the rail into the groove.

(Problem that the invention aims to solve) However, due to manufacturing errors, the dimensions of the support rail and the unit's engagement groove may vary in whole or in part, and the width between the ends of both rails may vary. If the width is larger than the width between the engagement grooves, it may be difficult for the rail to fit into the engagement grooves, and the handle and the unit may not be able to be smoothly connected.

In order to solve the above-mentioned inconvenience, this idea
The purpose of this invention is to provide a shaving unit mounting structure for a razor that allows the handle and shaving unit to be connected smoothly despite dimensional deviations due to manufacturing errors, etc. It is in.

Structure of the Invention (Means for Solving Problems) In order to achieve the above-mentioned object, the present invention provides a unit support at the tip of the handle, and the unit support has a unit support that protrudes in opposite directions.
A pair of mounting rails are formed extending in the length direction of the unit support base, and when each of the mounting rails is inserted into a pair of mounting grooves formed in the shaving unit, the part of the mounting groove that is obstructed by the insertion is formed. In this method, a cutting portion for cutting out the wall surface of the mounting groove is formed in a sharp shape at one end of at least one of the mounting rails.

(Function) By adopting the above-mentioned means, the present invention allows even when the dimensions of the mounting rail of the unit support stand are larger than the dimensions of the mounting groove of the shaving unit, the mounting rail is able to fit around the mounting groove by its cutout. Move within the mounting groove while cutting the wall surface.

(Example) Hereinafter, an example of this invention will be described in detail with reference to the drawings.

In FIG. 1, a unit support 3 is fixed to the front end of the handle 1 via a curved neck 2, which extends in a direction perpendicular to the handle 1. The support base 3 is formed of a metal plate having a channel-shaped cross section, and has a pair of shaving shaving removal holes 4 provided therethrough on the left and right sides of the fixed portion. Further, both front and rear ends of the support base 3 are bent in opposite directions to form a pair of mounting rails 5 and 6, and furthermore, cutouts 7 with sharp front ends are formed at both ends of the front mounting rail 5. ing.

The shaving unit 8 is made of synthetic resin and includes a substrate 9 having a curved cross section, a rear wall 9a projecting upward from the rear end, and a pair of side walls 10 connecting the substrate 9 and the rear wall 9a. It is made up of Three rib pieces 11 are arranged in parallel in the length direction at the boundary between the back surface of the substrate 9 and the rear wall 9a, so as to strengthen the structure of the unit 8. In the front curved portion of the base plate 9, a rear blade 13 is disposed within the blade attachment groove 12 extending throughout the length direction.
is fixed, and furthermore, an operating protrusion 14a of the exclusion plate 14 disposed on the back side of the rear blade 13 protrudes forward from the attachment groove 12. And this operation protrusion 14a
By moving the removal plate 14 in and out of the mounting groove 12 with a finger operation, the removal plate 14 is moved back and forth, and the shavings accumulated between the edges of the front blade (not shown) and the rear blade 13 on the front side of the board 9 are removed from the unit 8. It has become necessary to exclude it outside.

A front guide portion 15 that curves backward protrudes almost entirely in the length direction from the front of the back surface of the board 9, and this guide portion 15 defines a front mounting groove 16 into which the front mounting rail 5 of the support base 3 is inserted. is forming. Furthermore, four guide pieces 17 protrude forward from the upper end of the rear wall 9a at equal intervals in the length direction, and these guide pieces 17 constitute a rear guide part 18. This forms a rear mounting groove 19 into which the rear mounting rail 6 of the support base 3 is inserted.

Now, in order to attach the handle 1 to the unit 8 described above, the ends of the front and rear mounting rails 5 and 6 of the support base 3 are connected to the front and rear mounting grooves 16 of the unit 8, respectively.
19 and slide it toward the other end. Then, the front and rear mounting rails 5 and 6 slide inside the front and rear mounting grooves 16 and 19, respectively, while pressing the walls thereof. At this time, if the width between the inner walls of both guide portions 15, 18 is smaller than a predetermined dimension or the mounting rails 5, 6 protrude more than a predetermined amount due to manufacturing errors, etc., as shown in FIG. In this manner, the cutting portion 7 of the front mounting rail 5 cuts off the wall surface of the front mounting groove 16 at the portion that is obstructed by the insertion. Therefore, the cross section of the mounting groove 16 is deformed to a size necessary for the passage of the mounting rail 5, and the mounting rail 5 slides within this mounting groove 16. Therefore, even if there is a slight deviation in the dimensions of the front and rear mounting rails 5, 6 and the front and rear guide portions 15, 18 during manufacturing, the unit 8 can be reliably mounted on the support base 3 of the handle 1.

Note that the present invention is not limited to the above-described embodiments; for example, the cutout 7 may be formed only at one end of the front mounting rail 5 to simplify the structure; are formed at one end or both ends of both the front and rear mounting rails 5 to form both the front and rear guide portions 15,
The inner wall of the razor 18 can be cut out, and the unit 8 can be quickly attached to the support stand 3 in the case of the above-mentioned dimensional error, and it can be applied to sliding razors such as long-handled razors in addition to the T-shape. , etc., any changes are of course possible as long as they do not depart from the spirit of the invention.

Effects of the invention As detailed above, this invention provides a unit support at the tip of the handle, and a unit support that protrudes in opposite directions and extends in the length direction of the unit support. A pair of mounting rails is formed, and when each of the mounting rails is inserted into a pair of mounting grooves formed in the shaving unit, a wall surface of the mounting groove is cut off at a portion where the mounting groove is obstructed. By forming the cutout part in a sharp shape at one end of at least one of the mounting rails, the handle and the shaving unit can be smoothly connected despite dimensional deviations due to manufacturing errors, etc. It has an excellent effect.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view embodying this invention, and FIG. 2 is a schematic cross-sectional view showing how the handle and shaving unit are attached. Handle...1, unit support...3, front mounting rail...5, rear mounting rail...6, shaving unit...8, front mounting groove...16, rear mounting groove...19.

Claims (1)

[Scope of utility model registration request] A unit support 3 is provided at the tip of the handle 1, and a pair of mounting rails 5, 6 are formed on the unit support 3, projecting in opposite directions and extending in the length direction of the unit support 3. Further, when the mounting rails 5 and 6 are respectively inserted into the pair of mounting grooves 16 and 19 formed in the shaving unit 8, the mounting grooves 16 and 19 are inserted into the mounting grooves 16 and 19 at the part where the mounting grooves 16 and 19 are blocked. A razor shaving unit mounting structure characterized in that a cutting part 7 for cutting a wall surface is formed in a sharp shape at one end of at least one mounting rail 5.