JP2015030057A - Polishing and cleansing tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a polishing and cleansing tool capable of displaying a pressing force to be applied to a polishing and cleansing object.SOLUTION: A polishing and cleansing tool 1 comprises: a gripping part 2 having a mounting face 2a; an elastic deformation part fixed on the mounting face 2a for elastically deforming by a pressing force applied to the gripping part 2; a polishing and cleansing part 4 mounted on the elastic deformation part and having a pressing force applied thereto through the elastic deformation part; and a display part 5 mounted on the elastic deformation part for moving by the elastic deformation and the elastic recovery of the elastic deformation part, thereby to display the magnitude of the pressing force applied to the polishing and cleansing part 4.

Description

  The present invention relates to a manual polishing and cleaning tool for removing dirt on a surface to be cleaned and surface material of a non-polished surface with a polishing and cleaning tool having an abrasive layer mounted on the polishing and cleaning surface.

  A polishing tool that removes dirt from the surface to be polished, such as glass, with a polishing tool in which abrasive particles are applied directly to the polishing surface or an abrasive film is attached, and holds the gripping part as a handle with one hand. Can be easily polished and cleaned.

  However, in the conventional polishing cleaning with a hand-held polishing cleaning tool, the pressing force applied to the object to be polished is not known. For example, the one described in Patent Document 1 (Japanese Patent Application No. 2000-117868) is applied to the object to be polished. There are cases where the pressing purpose is insufficient and the purpose of cleaning cannot be achieved.

  On the other hand, there is a technique for controlling the pressing force using an electric circuit or a sensor. For example, the one described in Patent Document 2 (Japanese Patent Laid-Open No. 5-228822) requires electricity, There are limitations and the device itself is heavy and inconvenient.

  With manual tools that use polishing / cleaning films, especially polishing and cleaning tools that use abrasive cleaning films that use agglomerated abrasive grains, high detergency cannot be achieved unless a certain level of pressure is applied to the abrasive grains on the film surface. However, if the applied force is too high, the object to be cleaned may be damaged. Therefore, it is necessary to present whether or not the applied force is appropriate, and a simple and non-electrical mechanism is required.

  Accordingly, an object of the present invention is to provide a polishing and cleaning tool capable of displaying a pressing force applied to an object to be polished and cleaned with a simple and non-electrical mechanism.

In order to solve the above-described problem, the invention according to claim 1
A gripping portion having a mounting surface;
An elastically deformable portion fixed to the mounting surface and elastically deformed by a pressing force applied to the gripping portion;
A polishing and cleaning unit that is attached to the elastically deforming part and to which the pressing force is applied via the elastically deforming part;
A display unit that is attached to the elastic deformation unit, moves by the elastic deformation and elastic recovery of the elastic deformation unit, and displays a magnitude of the pressing force applied to the polishing and cleaning unit;
It is characterized by including.

  According to the present invention, the pressing force applied to the object to be polished by the polishing cleaning tool can be displayed with a simple and non-electrical mechanism.

It is sectional drawing which shows the normal state of the polishing cleaning tool which concerns on one Embodiment of this invention. It is sectional drawing which shows the use condition of the polishing cleaning tool of FIG. It is the figure seen from the A direction of the grinding | polishing cleaning tool in FIG. It is a perspective view which shows the structure of a display body. It is explanatory drawing explaining the deformation | transformation in the use condition of the polishing cleaning tool of FIG. It is explanatory drawing explaining the process which calculates | requires E'E in FIG. It is a characteristic view which shows the relationship between the moving amount | distance of a display body and the pressing force in the grinding | polishing cleaning tool of FIG.

  As shown in FIGS. 1 to 3, the polishing / cleaning tool 1 according to an embodiment of the present invention includes a grip portion 2, an elastic body structure 3, a polishing / cleaning portion 4, and a display portion 5. The grip portion 2 is a rectangular parallelepiped rigid structure made of a synthetic resin having a thickness (T) of 20 mm, a length (L) of 80 mm, and a width (W) of 65 mm, for example. For example, a plate 6 having a thickness (T) of 10 mm and a width (W) of 45 mm is fixed to the central portion of the mounting surface (lower surface) 2 a of the grip portion 2. The plate 6 may be formed integrally with the grip portion 2.

  The elastic deformation portion 3 includes a first spring member 31 and a second spring member 36. The first spring member 31 is an integrally formed leaf spring including a first curved portion 31a, a first flat plate portion 31b, and a second curved portion 31c. One end of the first bending portion 31a is connected to the attachment portion 6a of the plate 6 in the vicinity of one end portion of the attachment surface 2a, and is bent and extended into a curved shape. The first flat plate portion 31b extends from the other end of the first bent portion 31a. The second bending portion 31 c is bent and extended from the end portion of the first flat plate portion 31 b into a curved shape, and its tip is in contact with the vicinity of the end portion of the plate 6 so as to be movable. In the normal state where the pressing force P is not applied, the first spring member 31 has an upper width (W) of 36 mm and a height (H) of 10 mm, and a spring coefficient in the pressing force direction of 37000 N / m.

  The second spring member 36 includes a third bending portion 32, a fourth bending portion 33, and a second flat plate portion 34. The third bending portion 32 has one end connected to the attachment portion 2c at the other end of the attachment surface 2a, and is bent and extended into a curved shape. One end of the second flat plate portion 34 is hinged to the other end of the third bending portion 32. The other end of the fourth curved portion 33 is hinged to the other end of the second flat plate portion 34 and is bent and extended into a curved shape. One end of the fourth curved portion 33 extends in the longitudinal direction of the mounting surface 2a. It is mounted on a rail 2d formed integrally on both sides. The tip of one end of the fourth bending portion 33 is provided so as to be movable in contact with the vicinity of one end of the mounting surface 2a. The second spring member 36 is located outside the first spring member 31, and is disposed such that the second flat plate portion 34 is in surface contact with the first flat plate portion 31 b of the first spring member 31.

  The third bending portion 32 and the fourth bending portion 33 are made of the same synthetic resin, the length (L) is substantially the same as the length of the grip portion 2, and the width (W) when no pressing force is applied for cleaning. 50 mm. Moreover, the height (H) from the attachment surface 2a to the 2nd flat plate part 34 is 20 mm. The second flat plate portion 34 has a width (W) of 30 mm, and the length (L) is equal to that of the grip portion 2.

  The elastically deforming portion 3 is composed of a material in which the third bending portion 32 and the fourth bending portion 33 and the second flat plate portion 34 are different in deformation amount with respect to the pressing force, and the 34 second flat plate portion is subjected to the same load. The deformation amount is formed to be smaller than that of the third bending portion 32 and the fourth bending portion 33. For example, the third bending portion 32 and the fourth bending portion 33 are made of synthetic resin, and the second flat plate portion 34 is made of a thin metal plate.

  The polishing and cleaning unit 4 includes an abrasive grain layer 41 provided on the lower surface of the second flat plate portion 34. For example, agglomerated abrasive grains are used for the abrasive grain layer 41.

  The display unit 5 is connected to the distal end of the fourth bending portion 33 or the vicinity thereof, and moves on the attachment surface 2a together with the distal end of the fourth bending portion 33 according to the elastic deformation and elastic recovery of the second spring member 36. The display body 51 is configured to appear and disappear from the inside and outside of the mounting surface 2a. As shown in FIG. 4, the display body 51 has a rectangular parallelepiped shape made of synthetic resin and having dimensions of, for example, a width (W) of 5 mm, a height (H) of 4 mm, and a length (L) of 10 mm. The display body 51 has a trapezoidal groove 52 formed on one surface in the longitudinal direction, and a scale 53 that indicates the magnitude of the pressing force is engraved on the surface 51b on which the groove 52 is formed. The mounting surface 2a is provided with a trapezoidal rail 2e in both end portions, and the rail 2e is slidably fitted in the groove 52. The scale 53 is color-coded into different colors for a portion 53a whose pressing force does not exceed a predetermined upper limit and a portion 53b whose pressing force exceeds the upper limit. For example, the portion 53a is blue and the portion 53b is red. When the red portion 53b protrudes, it indicates that the upper limit of the appropriate pressing force has been exceeded. The display body 51 moves according to the elastic deformation and elastic recovery of the elastic body structure 3 due to the applied pressing force, moves in and out of the mounting surface 2a, and uses the magnitude of the pressing force applied to the abrasive layer 41. Make it visible.

  In the above configuration, the elastic body structure 3 is elastically deformed when the pressing force P shown in FIG. 2 is applied from the normal state shown in FIG. 1, and the normal state shown in FIG. Recovers elastically. The distance that the display body 51 moves due to elastic deformation and elastic recovery of the elastic body structure 3 can be calculated using the ABCD model by regarding the elastic body structure 3 as a trapezoidal ABCD model as shown in FIG. Due to the restraint between the rail 2d and the mounting portion 2c, the trapezoid ABCD becomes AB'C'D 'indicated by a dotted line during elastic deformation. Since the display body 51 moves in conjunction with the point D, the movement of the display body 51 can be effective for the displacement of the point D. That is, the amount of movement of the display body 51 during the elastic deformation is shown in FIG. D′ D.

  Projections of B, B ', C, and C' onto the respective AD 'sides are E, E', F, and F '. Because the ABCD model trapezoid is symmetrical, from the principle of geometry

can get. Therefore, the following equation can be derived.

  D'D is obtained by the following equation (4).

  Even if ABCD is deformed, the length of the BC side does not change, so that the horizontal movement amount at point B is equal to the horizontal movement amount at point C, and the following equation (5) is obtained.

  If the equations (3) to (5) are arranged, the equation (6) can be derived.

The amount of movement of D′ D and the display body 51 is determined by the amount of movement in the horizontal direction of point B.
Since the displacement in the horizontal direction at point B is due to the pressing force from the vertical direction, the amount of movement E′E was found to be obtained from the change Δh in height from the trapezoid ABCD to the trapezoid AB′C′D ′.

  FIG. 6 illustrates the process for determining E'E. G is the intersection of AB 'and EB, H is the projection of G onto the E'B' side, and EB and E'B 'are parallel. The relationship of equation (7) is obtained.

  Equation (8) is derived from the theorem.

  The relational expression (9) is derived from FIG.

  By arranging (7) to (9), the expression (10) can be derived.

  Considering (10), AE and BE are determined by the shape in a state where the pressing force of the third bending portion 32 is not received. Further, since the third bending portion 32 and the first spring member 31 are interlocked, the change Δh in the height of the third bending portion 32 due to the pressing force in Expression (10) is the same as the change in the height of the first spring member 31. It turns out that they are equivalent. The relationship between the pressing force F, the spring constant k, and Δh can be expressed by the following equation.

  If the above equations (10) and (11) are used, the amount of movement of the display body 51 by the pressing force F can be obtained by theoretical calculation.

  From the dimension of the curved plate 33, AE is 8 mm, and EB is 20 mm in the free state of the second curved plate 33. The spring constant of the first spring member 31 in the pressing force direction is 37000 N / m. In actual polishing and cleaning, the appropriate pressing force differs depending on the type of abrasive grains and the target for polishing and cleaning. Here, the general pressing force is set to 10N and the maximum pressing force is set to 90N. Calculated. The magnitude of the pressing force applied to the polishing and cleaning unit 4 can be visually recognized by the scale 53 to which the display body 51 has moved. When the pressing force 90N is applied, the deformation amount of the first spring member 31 in the pressing force direction is 2.4 mm, and the horizontal movement amount of the free end is 9 mm. Further, the moving amount in the pressing force direction of the second spring member 36 interlocked with the first spring member 31 is 2.4 mm, and the moving amount in the horizontal direction of the fourth bending portion 33 is 9 mm. The amount of movement is also 9 mm. When the pressing force is 10 N, the movement amount of the display body 51 is 1.3 mm as in the above-described operation. The relationship between the pressing force and the amount of movement of the display body is shown in FIG.

  Considering equation (11), the relationship between the pressing force and the amount of movement of the display body 51 is a trigonometric function, but it can be approximated to a linear relationship within the normal use range by designing the spring constant k. A weighing scale is installed under the polishing and cleaning tool 1, and when the load display value on the weighing scale is 30N, 60N, and 90N, respectively, the amount of movement of the display body is measured, and the relationship between the load and the amount of movement of the display body is verified. did. The measured values of the moving amount of the display body were 3.2 mm, 6.2 mm, and 8.8 mm, respectively, and are indicated by large square points in FIG. When FIG. 7 was seen, it became clear that the actual measurement value is substantially in agreement with the theoretical calculation value.

  The first spring member 31 is made of a synthetic resin, and the length (L) is the same as that of the second curved plate 33. When no cleaning pressing force is applied, the upper width (W) 36 mm, the mounting surface The height (H) from 2a to the second flat plate portion 34 of the second spring member 36 is 10 mm. The first spring member 31 can be formed into an appropriate shape with another material such as metal or rubber having the same performance depending on the use environment and cost.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to this, A various deformation | transformation and application are possible. Of course, such modifications and applications are included in the scope of the present invention as long as the configuration of the present invention is provided.

  For example, in the above-described embodiment, the grip portion 2 is a rectangular parallelepiped, but the shape is not limited to this, and a processing shape such as a hollow structure or a reinforcing structure may be used as appropriate.

  In addition, instead of applying the abrasive grain layer 41, a polishing cleaning film may be attached to the surface of the second flat plate portion 34 in a replaceable manner.

  Further, the form of the elastic body structure 3 is not limited to the form of the above-described embodiment, and may be any other appropriate form. For example, in the above-described embodiment, the second spring member includes the third bending portion 32, the fourth bending portion 33, and the second flat plate portion 34 as separate members. It is good also as a leaf | plate spring which formed the 3 curved part 32, the 4th curved part 33, and the 2nd flat plate part 34 integrally. In this case, an elastic body whose deformation amount with respect to the same load is smaller than that of the leaf spring may be attached to the second flat plate portion 34, and the polishing cleaning unit 4 may be attached to the elastic body.

DESCRIPTION OF SYMBOLS 1 Polishing cleaning tool 2 Gripping part 3 Elastic deformation part 4 Polishing cleaning part 5 Display part 31 1st spring member 31a 1st bending part 31b Flat plate part 31c 2nd bay pole part 32 3rd bending part 33 4th bending part 34 2nd Flat plate portion 36 Second spring member 41 Abrasive grain layer 51 Display body

JP 2001-299659 A JP-A-5-228822

Claims (6)

A gripping portion having a mounting surface;
An elastically deformable portion fixed to the mounting surface and elastically deformed by a pressing force applied to the gripping portion;
A polishing and cleaning unit that is attached to the elastically deforming part and to which the pressing force is applied via the elastically deforming part;
A display unit that is attached to the elastic deformation unit, moves by the elastic deformation and elastic recovery of the elastic deformation unit, and displays a magnitude of the pressing force applied to the polishing and cleaning unit;
A polishing and cleaning tool comprising: The elastically deformable portion has one end connected to the vicinity of the one end of the mounting surface, a first bent portion that is bent and extended into a curved shape, and extends from the other end of the first bent portion. The first flat plate portion and the second curved portion that is bent and extended in a curved shape from the end portion of the first flat plate portion and has a tip that is movable in contact with the vicinity of the other end portion of the mounting surface. A first spring member that is a leaf spring; a third bending portion that has one end connected to the other end of the mounting surface and is bent and extended into a curved shape; the other end of the third bending portion A second flat plate portion extending from the portion, and a fourth curve which is bent and extended from the end portion of the second flat plate portion into a curved shape and whose tip is in contact with the vicinity of one end portion of the mounting surface. A second spring member comprising a portion, wherein the second leaf spring member is located outside the first spring member, and Serial second flat plate portion are arranged to contact the first flat plate portion and the surface of the first spring member,
The polishing cleaning unit includes an abrasive layer fixed to the second flat plate part,
The display unit is connected to the distal end of the fourth bent portion or the vicinity thereof, and moves on the attachment surface together with the distal end of the fourth bending portion in accordance with elastic deformation and elastic recovery of the second spring member. The polishing and cleaning tool according to claim 1, wherein the display body is configured so as to appear and disappear in and out of the mounting surface.   The display body has a rectangular parallelepiped shape, a groove is formed on one surface in the longitudinal direction, and a scale indicating the magnitude of the pressing force is engraved on the surface on which the groove is formed. 3. A polishing and cleaning tool according to claim 2, wherein rails are provided in both end portions, and the rails are slidably fitted into the grooves.   4. The polishing and cleaning tool according to claim 3, wherein the scale is color-coded in different colors for a portion where the pressing force does not exceed a predetermined upper limit and a portion where the pressing force exceeds the upper limit. The gripping part is a rigid structure;
The elastic deformation portion is configured of a material in which the third and fourth bending portions and the second flat plate portion are different in deformation amount with respect to the pressing force, and the second flat plate portion has a deformation amount with respect to the same load. The polishing cleaning tool according to claim 2, wherein the polishing cleaning tool is smaller than the third and fourth curved portions.   The abrasive cleaning tool according to claim 2, wherein the abrasive layer uses agglomerated abrasive grains.

Images