JPH07501254A - Razor with blade protection - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Razor with blade protection The invention includes a handle, a cap, a guard, and at least one shaving blade. handle between the shaving position and the non-shaving position to protect the cutting edges of each month. and a shaving unit movable relative to the razor.

Such a razor is disclosed in British Patent Application No. 1,565,415. ing. The razor is capable of pivoting movement about an axis extending parallel to the edge of the blade. has a shaving unit attached to the handle. The handle is separated into two parts. This wing forms a shaving unit between the wings of the handle. Sufficient elasticity to form a knitted assembly, where the wings are elastic. shaped to sexually deform and maintain the head over a range of motion in its deformation It will be done.

The disadvantage of GB 1565415 is that the operator It is necessary to operate the shaving unit close to the edge of the blade, resulting in causing physical damage to the body or the user's hands.

GB 2100650 discloses a fixed position of the razor handle. There is a guard and blade member at each position, and a position where the blade is exposed for shaving and a position where each month is protected. A razor is disclosed including a cap surface movable between the cap surface. And more this In the previous proposals, the cap surface is fixed, but the guard platform and The blade has a guard to support the edge of the blade between the shaving position and the blade protecting position. It is designed to rotate around the axis of the surface area.

GB 2113594 discloses a fixed guard bar and a guard bar. a shaving cap and a blade that can be rotated between a shaving position and a retracted position. A razor having a platform is disclosed; No. 211.8088 includes a fixed blade, a top cap, and a shaving device. A pivotable guard bar that can be moved between a position that exposes the blade and a position that protects the blade. A razor having the following is disclosed.

The whole problem with such proposals is that they The relative position of the blade, cap surface and guard surface at the location of the shavings) There are uncertainties and unpredictable factors.

Changes in shaving morphology, even if very small, can have a significant effect on shaving performance. This is not desirable as it may have an adverse effect.

The purpose of the invention is to remove the blade during operation of the razor without affecting the shaving configuration. or to protect the blade while not in use to reduce the possibility of injury to the user's hands. The goal is to provide razors that protect people.

According to an aspect of the invention, the first defined razor has a protective member that protects the blade. The shaving unit is provided on the handle, and the shaving unit is arranged on the non-shaving unit behind the protective member. The shaving unit can be retracted into the The handle is equipped with a retractor for this purpose.

Preferably, the retraction means arbitrarily shaving between the shaving position and the retracted position. can be moved by hand to move the unit.

Preferably, the retraction means has a link between the shaving unit and the handle. do.

In a preferred embodiment, the shaving unit comprises two longitudinally arranged shaving units. It has a shaving blade. For handles that are permanent, retractable The handle is designed to work with the cartridge, and the handle is mounted on the head like this. and a head including a surface for releasably retaining a cartridge.

In one preferred embodiment, the link is flexible and is preferably connected to the head. It has a continuous distal end and a proximal end attached to the body. This installation , by pins and slots. If the pin is on the link, it is On the back of the handle, i.e. on the side of the body facing away from the shaving surface to form a surface (like a button).

The majority of razors sold to consumers today do not use a shaving mask while shaving. It is possible to swing between the cartridge and the shaving body, and the working surface of the cartridge is It is a type that can follow the contour of the skin surface when shaving.

In another embodiment of the invention, the connection between the shaving unit and the body is It is a type that allows such swinging in position.

In a preferred embodiment, the link pulls the shaving cartridge into the retracted position. It provides a tensile force to tighten and a compressive force to push the head into its shaving position.

Preferably, the movement transitioning between these two positions is driven by a rotational component of the movement. achieved. In different embodiments, the direction of rotational movement changes the shaving posture angle. increase or decrease.

The shaving posture angle is determined by the longitudinal axis of the handle and the surface of the cap, guard and blade. It is the angle between a line passing through the skin-contacting surface of the cap and guard, perpendicular to the plane.

In some embodiments, the shaving unit is retained in the body of the link, but other In embodiments, the unit includes pins and slots on both sides of the shaving head. It can be held to the main body by other means. the connection is made via a link When shaving, there is a unit on each side of the shaving unit between the shaving and non-shaving positions. It is advantageous to form a guide groove for guiding the knit. pins and pins on both sides of the unit. In embodiments in which the shaving unit is attached to the body by means of a shaving unit and a slot, These pin and slot connections also act as guide grooves.

Razor cartridges and shaving units are equipped with progressively hydrophilic lubricating strips It is designed to be equipped with

This will dry before next use. Facilitates evaporation of water from lubricating strips to form a protective member with ventilation holes such as a series of small slots. is preferred. By providing such a hole in the protective member, the manufacturing process of the razor can be improved. This has the added benefit of reducing the amount of plastic material required for construction.

The present invention generally finds application in a wide variety of disposable razors and shaving devices. It is established. To better understand the invention and how to effectively implement it For further clarity, reference is made by way of example to the accompanying drawings.

FIG. 1 shows a cartridge of a first embodiment of a razor according to the present invention; FIG. 3 is an exploded perspective view of the support and the head of the handle.

2 and 3 are longitudinal cross-sectional views passing through the central axis of the head of the first embodiment. Figure 2 shows the shaving position, and Figure 3 shows the retraction of the shaving cartridge. Show location.

Figures 4 and 5 show the camera with the retractable cartridge in the retracted position. FIG. 4 is a side view and a top view of a second embodiment of the sled.

6 and 7 are side views and side views of the razor of FIGS. 4 and 5 in the extended position; FIG.

Figures 8.9 and 10 are sections A-A, B-B, and C-C taken from Figure 5. It is a front view.

11.12 and 13 are corresponding cross-sectional views taken from FIG. 7.

Figures 14.15 and 16 correspond to Figures 11 to 13, but with a shaving razor. FIG. 6 is a diagram showing the device being pushed into a rocking shaving position against a spring;

Referring to Figures 1.2 and 3, the razor has a /X handle 10 and a razor and a shaving unit in the form of a cartridge sled 11 in the head. car The bird sled 11 has a cap 20, a blade 50, 51, and a guard 22. Attached to a cartridge support movably attached to the head end of the handle 10 It is being

A lubricating strip 52 extends along one edge of the cartridge.

Each end wall 63 of the cartridge support 61 mates at the head end of the handle 10. It has a projecting pin 12 which engages in a corresponding elongated slot 13. The hardness of the handle 10 The elasticity of the pins 12 allows engagement in their corresponding slits 13.

The support 61 has a long wall 62 and two end walls 63 each supporting one of the pins 12. and has. Ear portions 19a, 19b, and 19c are provided at the midpoints of the long wall 62. Ru.

A narrow shelf surface 64 extends around the bottom of the space 65 between the long wall 62 and the two end walls 63. The space 65 is sized to properly receive the cartridge 11. , the cartridge slides over the top surface of shelf 64. forward from shelf 64 A pair of resilient picker fingers 66 extend, each finger extending over a locking shoulder 67. and both of the two shoulders face in opposite directions with respect to the center of the support 61. There is. These fingers engage corresponding structures of the cartridge 11 and Although not shown in FIG. 1, it will be explained below with reference to FIGS. 1 to 6.

Referring to FIGS. 2 and 3, the link 14 has a slot in the back of the handle 10. is snapped onto the handle 10 by engaging the button 15 of the . The outward facing surface of the button 15 has an extended position as shown in FIG. 2 for shaving and a protective member. 23 and the retracted position shown in Figure 3. A raised portion is provided to assist the user in operating the button 15 with a finger, that is, a thumb. There is.

The distal end 18 of the link 14 has a pair of ears 19a.

19b and the third opposed ear 19c, all of which is the cartridge adjacent to the cap 20 of the cartridge supported by the support 61. It rests on the long wall 62 of the support 61 of the trige. FIG. 2 shows the distal end of slot 13. shows the pin 12 of the cartridge blade 50.5 between the guard 22 and the cap 20. 1 is shown in the correct position for a comfortable shave.

By moving the button 15 to the proximate position shown in FIG. The tensile force exerted by the pin 12 at the proximal end of the slot 13 The cartridge 11 is shown being pulled to the close position shown in FIG. Kya The cap 20 and the shaving blade 50.51 are pulled up inside the handle and the protective member Protected by 23. Return the cart to the shaving position as shown in Figure 2. To position the ridge, simply move the button 15 back to its end position. It's a minute.

The movement of the pin 12 along the slot 13 determines the shaving position and the non-shaving (retracted) position. ) position. Comparing Figures 2 and 3, This movement causes the shaving surface of the cartridge to be adjacent to the protective shield member 23. Indicates that it involves a rotational movement to place the .

The first embodiment described above is a shaving device that includes a series of repositionable cartridges. The same force is used with the same force. In a variant, the cartridge is Can be connected directly to the link, thereby linking the handle and cartridge together. Provide disposable razors.

4 to 16 show the operation and structure of the second embodiment, which is essentially the same as the first embodiment. The same parts are given the same reference numerals. The handle 10 is The cartridge 1 has a stem that extends into a plate 30 at the bottom of the cartridge 1. 1 has upwardly bent ends 31 forming guide grooves 32 for both sides of the . 4 and 5 show the cartridge 11 completely accommodated in the guide groove 32. However, the shaving blade 21 of the cartridge 11 protects the plate 30 of the handle 10. It is well protected by the wall 33.

The links 14 are strips that slide within corresponding slots in the plate 30 of the handle. It has a proximal end portion shaped like a cup 34.

Referring to Figure 2, manual manipulation of the link to move between the distal and proximal ends. There is a button 15 on the top surface of the plate 30 to enable operation, but it is different from that shown in Fig. 2. The strip 34 is on the outside of the handle. The link moves within the slot. , first and second saddle parts 36.3 holding the strip 34 on the plate 30. 7. The strip is fixed to the handle at the end of its movement, but the bolt It forms a fixing surface 39 that can be released when further pressure and movement is applied to the tongue 15. It has a certain degree of elasticity.

The link 14 is a left arm that extends to the left and right sides of the cartridge 11, respectively. The distal end thereof is bifurcated to form a right arm and a right arm 40.41. . The distal end of the arm 40 is provided with a pawl 42 on a latch surface 43 to rotate the cartridge. A pawl 42 (see FIG. 9) engageable with the latching surface 43 of the cartridge to allow movement. (most commonly shown). The shell bearing on the cartridge has surface 53 The bearings on the arm 40 cooperate with the surface 54 (see FIG. 10). End of right arm 41 A corresponding claw 44. The latch surface 45 and the bearing have surfaces, and the cartridge It is held in link 14 by the joint action of each of these surfaces.

As shown in FIGS. 8, 11 and 14, the left hook 46 of the cartridge 11 is During the movement of the button 15 from the proximal end to the distal end of the slot 16, the first shave engages the inner surface of the end 31 of the handle 1o to rotate the cartridge to the position do. A corresponding hook (not shown) is located on the other end of the cartridge and Collaborate in the same way.

Referring to FIG. 5, link 14 includes a pair of leaf springs, i. The left hand spring 471 extends along the back of the arm 41, and the right hand spring 471 extends along the back of the arm 41. It has a spring 472. Each spring has a cartridge 1 at its outer end in the direction of arrow f. It has a compression pad 48 on one common surface that is pressed by the elasticity of a leaf spring. Therefore, The rotation of the cartridge from the starting position in Figure 11 to the deflection position in Figure 14 is as follows: The spring is driven backwards, increasing the biasing force acting on the cartridge 11, and As soon as cartridge 11 can be moved back, move cartridge 11 to the position shown in FIG. There is a tendency to return to Therefore, during shaving, the spring will cause the cartridge 11 to so as to return the cartridge 11 to its starting position whenever it is deflected from its position. An acting return force is applied to the cartridge 11.

The longitudinally arranged blades 50.51 of the cartridge are along B-B and C-C. It can be seen in cross section. These blades, as they are known, are razors. As the shaving pressure changes in use, it is deflected by the skin surface being shaved. It can be attached elastically as shown. Cartridges are known per se. As such, a hydrophilic lubricating strip 52 is incorporated.

In the razor described, the cartridge has all cap faces, guard faces and Including blade. Does the entire cartridge move between the shaving position and the retracted position? During the movement of the cartridge, there is no relative movement between the parts of the cartridge.

The simplicity of the design of the described embodiments is such that a car with spring-loaded tandem blades is possible. This opens up the possibility of using a wide range of cartridge designs, including cartridges.

This embodiment also includes a replaceable shaving cartridge with a permanent handle. It provides an advantageous basis for the design of use. The operation of button 15 is The shaving blade because it is far from the edge and located on the handle bracket Can be used repeatedly without the risk of accidental contact with edges and damage. Ru.

Retraction of the shaving head into the handle prevents the razor from being used when the razor is not in use. Another feature of the device is the reduction in the physical size of the razor.

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Claims (17)

[Claims] 1. A beard including a handle, a cap, a guard and at least one shaving blade between the shaving unit and the non-shaving position to protect the shaving position and the cutting edge of each blade. a means for moving the shaving unit with respect to the handle, the razor having: , a protective member for protecting each blade is provided on the handle, and the shaving unit is provided with a protective member for protecting each blade. retractable into a non-shaving position behind the protective member, and the shaver is retractable behind the protective member. A razor with a retracting means on the handle to retract the unit. 2. Said retraction means may optionally move the shaving unit between a shaving position and a retraction position. 2. The razor of claim 1, wherein the razor can be moved by hand to move the knit. 3. The retraction means may include a link between the shaving unit and the handle. The razor according to claim 2. 4. 4. The razor of claim 3, wherein the link is flexible. 5. The link may be connected to the handle by a pin and slot connection. 5. The razor according to claim 3 or 4. 6. 6. The razor of claim 5, wherein the pin is on the link and forms an actuation button. . 7. The shaving unit is operated by a transition link between the shaving position and the non-shaving position. 7. A razor according to claim 1, wherein the razor is retractable. 8. The shaving unit has two shaving blades arranged in a longitudinal direction. 8. The razor according to any one of 1 to 7. 9. Claim 1, wherein the shaving blade is elastically attached to the shaving unit. 8. The razor according to any one of items 8 to 8. 10. The shaving unit is supported by a cartridge support and its support. and a replaceable cartridge according to any one of claims 1 to 9. razor. 11. The cartridge support and the replaceable cartridge are each 11. The at least one cooperating latching surface retaining the support to the support. Razor included. 12. The latching surface of the support is the shoulder with elastic spring fins on top of the cart. 12. The razor of claim 11, wherein the ridge latch surface is an ear. 13. If you insert the cartridge into the handle in the opposite direction to the direction in which it will be used, A razor according to claim 11 or 12, comprising means for inhibiting cooperation of the latching surfaces. Li. 14. The shaving unit in the shaving position is at the shaving starting position and Claims 1 to 13, wherein the handle is supported so as to be swingable between the shaved positions. The razor according to any one of the above. 15. The shaving unit has a cam surface, and the handle cams the shaving unit. Claim 14, further comprising a leaf spring acting on the cam surface to push it into the warping start position. razor. 16. The shaving unit has a retracted position, a shaving start position and a deflected shaving position. held by a pawl surface attached to the handle rotatably between the bald positions The razor according to claim 14 or 15. 17. The shaving unit has a cartridge between the shaving position and the retracted position. The hand is connected by a pair of pins and slots that define the position of the unit's movement. 17. A razor according to any one of claims 1 to 16, wherein the razor is held in a razor.