WO2006018910A1

WO2006018910A1 - Cleaning tool for window

Info

Publication number: WO2006018910A1
Application number: PCT/JP2005/000868
Authority: WO
Inventors: Masaaki Matsunaga
Original assignee: Teramoto Corporation Ltd.
Priority date: 2004-08-18
Filing date: 2005-01-24
Publication date: 2006-02-23
Also published as: TW200607474A; JPWO2006018910A1; TWI279217B; JP4418821B2

Abstract

A cleaning tool for a window, comprising a flat plate-like wiper blade (3) of a specified length, a head (1) to which the wiper blade (3) is fitted, and a head holder (2) connected to the head (1) and to which a grip (6) is connected. The head (1) is formed rotatable relative to the head holder (2), and a guide body (5) allowed to abut on a glass surface together with the wiper blade (3) to maintain the attitude of the head (1) relative to the glass surface is fitted to the head (1) integrally with each other.

Description

Specification

Window cleaning tool

Technical field

[0001] The present invention relates to a window cleaning tool used for cleaning window glass and the like.

Background art

[0002] An example of a window cleaning tool used for cleaning window glass is shown in Fig. 14 (a) (see, for example, Japanese Utility Model Publication No. 159565). The window cleaning tool B shown in the figure is composed of a sponge 104 for impregnating water or detergent to remove dust adhering to the glass surface, and an elastic material for removing water droplets adhering to the glass surface. A tip blade 103 made of Yes.

[0003] In this window cleaning tool B, the handle 101a of the head 101 has the wiper blade 103 perpendicular to or below the glass surface S in consideration of workability when cleaning a window glass at a high place. The handle 106 is formed so as to be inclined at an appropriate angle with respect to the glass surface S when it is inclined slightly. Therefore, when removing water droplets adhering to the glass surface at a high place, the water droplets adhering to the glass surface S can be efficiently wiped off by sliding the wiper blade 103 downward while being pressed against the glass surface. Can do.

[0004] However, with the window cleaning tool B according to the above-described prior art, when removing water droplets attached to the window glass in the low place, as shown in FIG. 14 (b), the handle 106 is placed on the glass surface. The wiper blade 103 is inclined upward with respect to the glass surface S. Then, even if the wiper blade 103 is slid downward, the tip of the wiper blade 103 is partially caught on the glass surface S, and water droplets cannot be removed properly. Therefore, in such a case, it is necessary to incline the handle 106 with respect to the glass surface S so that the wiper blade 103 has an appropriate posture with respect to the glass surface S. That is, the wiper blade 103 is slid horizontally or the handle 106 is removed and the handle 101 a of the head 101 is gripped, and the wiper blade 103 is operated while adjusting the posture of the wiper blade 103 relative to the glass surface S. International Application Number PCT / JP 2005 / 00086.8 Column IV Summary (Continued from 5 on page 1)

A flat wiper blade (3) having a predetermined length, a head (1) to which the wiper blade (3) is mounted, and the handle (6) are connected to the head (1). A head holder (2) connected to the head;

(1) is rotatable with respect to the head holder (2), and the head (1) contacts the glass surface together with the wiper blade (3). A guide body (5) 'that maintains the posture of the door (1) is provided. ·-

Style PCTZI SAZ210 (Page 1 (3)) (January 2004) It is possible to use the head by sliding it downward while keeping it facing upward, which improves the convenience for the operator. In addition, if the head and the head holder are connected via a flexible portion, the structure is simplified and preferable in configuring the head to be rotatable in all directions with respect to the head holder.

In a preferred embodiment of the present invention, when the guide body is in contact with the glass surface together with the wiper blade, the contact portion with the glass surface is on the head holder side with respect to the wiper blade. It is comprised so that it may be located in.

[0013] According to such a configuration, when removing water droplets from the window glass, the contact portion with the glass surface of the guide body is positioned below the wiper blade. Therefore, when the guide body is brought into contact with the glass surface together with the wiper blade, even if the angle between the glass surface and the handle changes, the wiper blade is tilted vertically or slightly downward with respect to the glass surface. Is properly maintained. Therefore, according to the present invention, since the wiper blade can slide the head downward while maintaining an appropriate angle with respect to the glass surface, water droplets adhering to the glass surface can be efficiently wiped off. This is suitable for improving work efficiency.

[0014] In a preferred embodiment of the present invention, the guide body has a curved shape in which the contact portion protrudes toward the glass surface when the guide body is in contact with the glass surface together with the wiper blade. In the present invention, the guide body may be inertially deformable with respect to a load for pressing the head against the glass surface in a state where the guide body is in contact with the glass surface together with the wiper blade. preferable.

[0015] According to such a configuration, when the head is slid downward while the guide body is pressed against the glass surface together with the wiper blade, the contact resistance S between the glass surface and the guide body can be reduced. Further, even when a protrusion such as a bar protruding from the glass surface is provided in the middle of the window glass in the vertical direction, it is possible to smoothly get over the guide body without being caught by the protrusion. Therefore, even when removing water droplets from the window glass having such a protruding portion, the operation can be performed without any inconvenience, which is preferable in improving work efficiency.

[0016] Further, the guide body elastically changes with respect to a load that tries to press the head against the glass surface. If the shape is possible, it is possible to absorb the impact when the guide body hits the protruding portion, and it is possible to get over the protruding portion more smoothly.

In a preferred embodiment of the present invention, the guide body is formed and extended so as to be cantilevered from the head.

[0018] Such a configuration is suitable for making the guide body elastically deformable.

In a preferred embodiment of the present invention, the guide body includes a roller that can rotate around a central axis parallel to the longitudinal direction of the head.

According to such a configuration, when the head is slid downward while the guide body is pressed against the glass surface together with the wiper blade, the roller rolls on the glass surface, so that the glass surface and the guide body are Can be more efficiently reduced.

In a preferred embodiment of the present invention, there is provided a lock mechanism capable of locking by restricting the rotation of the head with respect to the head holder.

[0022] According to such a configuration, by using the lock mechanism, the same usage method as in the prior art can be achieved. That is, if the head is locked so as to restrict the rotation of the head, the force S can be applied to press only the wiper blade against the glass surface without bringing the guide body into contact with the glass surface. Therefore, it is possible to select a method of use when removing water droplets from the window glass, which improves the convenience for the operator.

[0023] In a preferred embodiment of the present invention, the lock mechanism includes an operation lever that is integrally fixed to the head, and an engagement portion that is formed on the head holder. When the predetermined operation is performed, the operation lever and the engaging portion are engaged with each other, so that the state of restricting the rotation of the head is maintained.

[0024] According to such a configuration, the lock mechanism is maintained in a locked state in which the rotation of the head is restricted by the engagement between the operation lever and the engaging portion of the head holder, so that the structure of the lock mechanism is simplified. In this way, it is possible to avoid problems such as the lock state being illegally released during work.

[0025] The head is mounted with a sponge body having a predetermined length in the longitudinal direction of the head at a position separated from the wiper blade. [0026] According to such a configuration, water droplets adhered to the glass surface with a wiper blade after the sponge body is impregnated with water or a detergent and rubbed against the glass surface to wipe off dust adhering to the glass surface. When it is removed, it can be used anytime. As described above, since the window cleaning tool according to the present invention has two different cleaning functions, it is preferable to improve the cleaning work efficiency without the need to prepare two types of window cleaning tools separately. It is. In addition, if a sponge is used when the sponge body is used, the head does not rotate even when the sponge body is pressed against the glass surface, and the work can be performed stably.

Brief Description of Drawings

FIG. 1 is a side view showing an example of a window cleaning tool according to the present invention.

FIG. 2 is a view taken along II II in FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

4 is a cross-sectional view taken along the line IV-IV in FIG.

FIG. 5 is a side view showing an example of the usage state of the window cleaning tool according to the present invention, in which (a) shows the usage state with respect to a window glass in a high place and (b) shows the usage state with respect to a window glass in a low place. Represents a state.

FIG. 6 is a side view showing an example of a usage state of the window cleaning tool according to the present invention.

FIG. 7 is a side view showing an example of a usage state of the window cleaning tool according to the present invention.

FIG. 8 is a side view showing an example of a usage state of the window cleaning tool according to the present invention.

FIG. 9 is a side view showing an example of a usage state of the window cleaning tool according to the present invention.

FIG. 10 is a view showing another example of the window cleaning tool according to the present invention, in which (a) shows a use state in a side view, and (b) shows a use state in a front view.

FIG. 11 is a view showing another example of the window cleaning tool according to the present invention, in which (a) is a side view and (b) is a view taken in the direction of arrow b and b in (a).

FIG. 12 is a side view showing a usage state of the window cleaning tool shown in FIG. 11.

FIG. 13 is a view showing another example of the window cleaning tool according to the present invention and is a side view showing a use state.

FIG. 14 is a side view showing an example of a conventional window cleaning tool, in which (a) shows the state of use with respect to a window glass in a high place, and (b) shows the state of use with respect to a window glass in a low place.

BEST MODE FOR CARRYING OUT THE INVENTION [0028] Preferred embodiments of the present invention will be specifically described with reference to the drawings.

FIG. 1 and FIG. 4 show an example of a window cleaning tool according to the present invention. The window cleaning tool A of the present embodiment includes a head 1, a head holder 2, a wiper blade 3, a sponge body 4, a pair of guide bodies 5, and a lock mechanism L.

[0030] The wiper blade 3 is a long rectangular flat plate having a predetermined length, and has a bulging portion 31 having a thickness larger than the thickness of the plate-like portion over the entire length in the longitudinal direction on one end side in the short side direction. Have. The bulging portion 31 has a shape corresponding to the concave portions 11 and 12 described later. The wiper blade 3 is integrally formed from an elastic member, and is obtained, for example, by forming styrene butadiene rubber.

[0031] The sponge body 4 has a cylindrical shape having a length equivalent to the length of the wiper blade 3 in the longitudinal direction, and the outer peripheral surface of the sponge is covered with a nonwoven fabric. The sponge body 4 is formed with a mounting portion 41 protruding along the longitudinal direction.

[0032] The head 1 has a block shape extending in the longitudinal direction of the wiper blade 3 as a whole, and includes a first head portion la and a second head portion lb that can be divided into two along the longitudinal direction. It is. The first head portion la and the second head portion lb are each integrally formed of a resin having a predetermined strength such as an ABS resin.

[0033] On the inner walls of the first head portion la and the second head portion lb, recesses 11 and 12 are formed so as to face each other along the longitudinal direction. By wiping the wiper blade 3 between the first head portion la and the second head portion lb so that the bulging portion 31 of the wiper blade 3 is surrounded by the recesses 11 and 12, the wiper blade 3 is It is attached to. On the first head portion la and the second head portion lb, flange portions 13 and 14 are formed so as to oppose each other along the longitudinal direction at appropriate positions separated from the recess portions 11 and 12. The sponge body 4 is attached to the head 1 by sandwiching the attachment portion 41 of the sponge body 4 between the flange portions 13 and 14. A plurality of pointed locking projections 13a are formed at a predetermined pitch along the longitudinal direction on the flange portion 13 so as to face the flange portion 14 side. It is prevented from dropping out of 1.

[0034] As clearly shown in Fig. 3, a plurality of engagement cylinders 15 and engagement shafts 16 are provided at appropriate positions on the inner walls of the first head portion la and the second head portion lb. ing. The first head portion 1a and the second head portion 1b are inserted into the respective engagement cylinders 15 by inserting the respective engagement shafts 16 into the screws 1 By connecting with 7 etc., it is connected integrally.

[0035] As shown in FIGS. 2 to 4, the head holder 2 includes a pair of shaft portions 21 that are fitted into through holes 52 of the guide body 5 described later, and a handle portion 22 for connecting the handle. And an engaging portion 23 constituting the lock mechanism L. The head holder 2 is integrally formed of a resin having a predetermined strength such as an ABS resin.

[0036] The pair of shaft portions 21 is formed on one end side in the longitudinal direction of the head holder 2. The center of each shaft portion 21 coincides with a predetermined axis that is perpendicular to the longitudinal direction of the head holder 2. The outer diameter of each shaft portion 21 is slightly smaller than the inner diameter of the through hole 52. The handle 22 is formed to extend to the other end in the longitudinal direction of the head holder 2 and has a cylindrical inner surface having an inner diameter equivalent to the outer diameter of the rod-like handle 6. The handle 6 is fitted to the handle portion 22 and connected to the head holder 2. The engaging portion 23 has a concave engaging step portion 23a that can be engaged with an engaging convex portion 71 formed on the operation lever 7 described later.

[0037] The pair of guide bodies 5 are provided at a predetermined interval in the longitudinal direction of the head 1. Each guide body 5 has a guide portion 51 having a predetermined thickness and width and extending in a curved shape, a through hole 52, a locking piece 53 for locking to the second head portion lb, and a position relative to the operation lever 7. It has a recess (not shown) for determination. The guide body 5 is integrally formed of a resin having a predetermined elasticity.

[0038] The operating lever 7 includes an engaging convex portion 71, a locking piece 72 for locking to the second head portion lb, and a pair of convex portions (not shown) for positioning with respect to the guide body 5. Have. The operation lever 7 is integrally formed of a resin having a predetermined elasticity.

[0039] When the head holder 2 is connected to the head 1, the locking piece 53 of the guide body 5 is attached to the second head section lb while the head holder 2 and the operation lever 7 are sandwiched between the pair of guide bodies 5. This can be done by inserting into the opening formed in the outer peripheral surface. More specifically, the pair of shaft portions 21 of the head hono-redder 2 are fitted into the through holes 52 of the pair of guide bodies 5 and the convex portion of the operating lever 7 is fitted into the concave portion of the guide body 5. If the guide body 5, the head holder 2, and the operating lever 7 are positioned and inserted through the opening of the second head lb, the locking piece 53 of the guide body 5 and the locking piece 72 of the operating lever 7 will be shown. Is elastically deformed and is locked by the locking portions 18 and 19 formed in the second head portion lb. As a result, the pair of guide bodies 5 and the operation The lever 7 is fixed to the head 1 integrally.

[0040] Here, the guide portion 51 of the guide body 5 is provided so as to extend from the head 1 in a cantilever manner. Further, as shown in FIG. 7, in the state where the guide portion 51 is in contact with the glass surface S together with the wiper blade 3, the contact portion 51a of the guide portion 51 with the glass surface S protrudes to the glass surface S side. In addition to the curved shape, the contact portion 51a and the contact portion 3a with respect to the glass surface S of the wiper blade 3 have a relatively large predetermined distance. In the state shown in FIG. 7, the contact portion 5 la is located on the head holder 2 side with respect to the wiper blade 3. In this state, when the head 1 is pressed against the glass surface S with a predetermined pressing force, the guide portion 51 is elastically deformed and is in a state indicated by a dotted line in FIG.

[0041] As described above, since the outer diameter of the shaft portion 21 of the head holder 2 is slightly smaller than the inner diameter of the through hole 52 of the guide body 5, the head holonder 2 and the pair of guide bodies 5 are Relative rotation is possible about the pair of shaft portions 21. Further, since the pair of guide bodies 5 are integrally fixed to the head 1, the head 1 rotates around the pair of shaft portions 21 parallel to the longitudinal direction of the head 1 with respect to the head holder 2. It becomes possible.

[0042] The lock mechanism L is for restricting and locking the rotation of the head 1 with respect to the head holder 2, and as shown in FIG. 3, the operation lever 7 and the head holder 2 are properly positioned. And an engaging portion 23 provided as an opening portion. When the operating lever 7 is pressed toward the engaging portion 23, the operating lever 7 is elastically deformed, and the engaging convex portion 71 of the operating lever 7 is engaged with the engaging step portion 23a of the head holder 2. Here, since the operation lever 7 is fixed to the head 1 as a whole, the rotation of the head 1 is regulated by the engagement protrusion 71 engaging the engagement step 23a. Maintained. In this state, when an operation force of a certain level or more is applied toward the handle 22 of the head holder 2 with respect to the tip of the operation lever 7, the engagement between the engagement step portion 23a and the engagement convex portion 71 is released. It is configured to be released.

Next, the operation of the above-described window cleaning tool A will be described with reference to FIG. 5 and FIG.

[0044] When this window cleaning tool A is used, as shown in Fig. 5 (a), the handle 6 connected to the head holder 2 is gripped so that the longitudinal direction of the wiper blade 3 is substantially horizontal. Then, while pressing the wiper blade 3 against the glass surface S of the window glass, slide the head 1 downward so that the water droplets adhering to the glass surface S are wiped off. At this time, with window cleaning tool A, Since the head 1 is rotatable with respect to the head holder 2 around a pair of shaft portions 21 parallel to the longitudinal direction of the head 1, and the head 1 is provided with a pair of guide bodies 5, By pressing the wiper blade 3 against the glass surface, the pair of guide bodies 5 (guide portions 51) abut against the glass surface S together with the wiper blade 3. Here, since the pair of guide bodies 5 are provided at a predetermined interval in the longitudinal direction of the head 1, the wiper blade 3 can contact the glass surface S over the entire length in the longitudinal direction. Then, when the head 1 is slid down as it is, as shown in FIG. 5 (b), the head 1 is rotated with respect to the glass surface S by rotating around the pair of shaft portions 21 with respect to the head holder 2. A predetermined posture is maintained. That is, even if the angle between the glass surface S and the handle 6 changes due to the change in the height of the head 1, the wiper blade 3 is maintained at a predetermined angle with respect to the glass surface S. Water drops adhering to the surface S can be removed. Therefore, according to the present invention, when removing water droplets adhering to the window glass, it becomes possible to work on the window glass in a range from a high place to a low place without any inconvenience, and work efficiency is improved. .

[0045] In the window cleaning tool A in the present embodiment, the guide portion 51 has a contact portion 51a with the glass surface S of the guide portion 51 in a state where the guide portion 51 is in contact with the glass surface S together with the wiper blade 3. Since it is configured to be positioned on the head holder 2 side with respect to the wiper blade 3, the contact portion 51a is positioned below the wiper blade 3 when removing water droplets on the window glass. . Therefore, if the pair of guide portions 51 are brought into contact with the glass surface S together with the wiper blade 3, even if the angle between the glass surface S and the handle 6 changes due to the change in the height of the head 1, The state where the wiper blade 3 is tilted vertically or slightly downward with respect to the glass surface S is properly maintained. Therefore, according to the present invention, the wiper blade 3 can slide the head 1 downward while maintaining an appropriate angle with respect to the glass surface S, so that water droplets adhering to the glass surface S can be appropriately scattered. This is suitable for improving work efficiency.

In the present embodiment, the guide portion 51 has a curved shape in which the contact portion 5 la protrudes toward the glass surface S when the guide portion 51 is in contact with the glass surface S together with the wiper blade 3. When the head 1 is slid downward with the wiper blade 3 pressed against the glass surface S together with the wiper blade 3, the contact resistance between the glass surface S and the guide part 51 can be reduced. it can. In addition, as shown in FIG. 6, the guide 51 also acts like a hook that does not get caught by the protrusion P even on a protrusion P such as a bar protruding from the glass surface in the middle of the window glass in the vertical direction. It is possible to get over smoothly. Therefore, even when removing water droplets from the window glass having such a projecting portion P, the operation can be performed without any inconvenience, which is suitable for improving the working efficiency. Here, since the contact portion 51a of the guide portion 51 and the contact portion 3a of the wiper blade 3 with respect to the glass surface S have a relatively large predetermined distance, the posture of the head 1 with respect to the glass surface S is almost changed. No effect on the function of removing water droplets. Therefore, water droplets adhering to the front of the protrusion P can be removed without leaving any.

Further, in the present embodiment, the guide portion 51 has a dotted line in FIG. 7 with respect to a load for pressing the head 1 against the glass surface S in a state of being in contact with the glass surface S together with the wiper blade 3. As shown in FIG. Therefore, when the guide part 51 hits the projecting part P, the impact S can be absorbed by the suspension effect, and the force S can get over the projecting part P more smoothly. As described above, if the guide portion 51 can be inertially deformed, only the wiper blade 3 is inertially deformed with respect to the load to press the head 1 against the glass surface S, and the wiper blade 3 is made of glass. Inclination with respect to the surface is suppressed, and it is suitable for properly squirting water droplets adhering to the glass surface.

[0048] In the window cleaning tool A according to the present embodiment, a lock mechanism L that can lock the head 1 with respect to the head holder 2 is provided, so that the lock mechanism L can be locked. By making it act, the usage method similar to a prior art becomes possible. That is, if locked so as to restrict the rotation of the head 1, only the wiper blade 3 is brought into contact with the glass surface S without bringing the guide portion 51 into contact with the glass surface S as shown in FIG. Can be pressed. Therefore, it is possible to select a method of use when removing water droplets on the window glass, and it is convenient for the manufacturer.

In this embodiment, the locked state in which the rotation of the head 1 is restricted by the engagement between the engagement convex portion 71 of the operation lever 7 and the engagement step portion 23a of the head holder 2 is maintained. Therefore (see Fig. 3), the structure of the lock mechanism L can be simplified, and if the lock state is unfairly released during the work, the problem can be avoided appropriately. [0050] In the window cleaning tool A according to the present embodiment, the sponge body 4 having a predetermined length in the longitudinal direction of the head 1 is attached at a position separated from the wiper blade 3, so as shown in FIG. When the sponge body 4 is impregnated with water or detergent and the glass surface S is rubbed to wipe off dust adhering to the glass surface S. Can be used. As described above, since the window cleaning tool A according to the present invention has two different cleaning functions, it is suitable for improving the cleaning work efficiency without the need to prepare two types of window cleaning tools separately. It is. In addition, when the sponge body 4 is used, if the lock mechanism L is operated, even if the sponge body 4 is pressed against the glass surface S, the head 1 does not rotate, and the work can be performed stably. .

FIG. 10 to FIG. 13 show another example of the window cleaning tool according to the present invention. In FIG. 10 and subsequent drawings, the same or similar elements as those in the above embodiment are denoted by the same reference numerals as those in the above embodiment, and the description thereof is omitted.

In the window cleaning tool A 1 shown in FIG. 10, the head 1 and the head holder 2 are connected via a flexible portion 8. The flexible portion 8 can be composed of an elastically deformable member such as rubber. Here, the head 1 can be rotated in all directions with respect to the head holder 2, and is different from the window cleaning tool A in the above embodiment in this respect.

[0053] According to this embodiment, when the head 1 is slid downward, as shown in Fig. 10 (b), the operator slides the head 1 downward with the handle 6 facing diagonally upward. Therefore, it is easy for the operator to use. Specifically, the operator can work on the glass surface S to be worked while moving only the head 1 in the horizontal direction without moving in the horizontal direction. In addition, even when the operator is unable to position the glass surface S directly below the cleaning location, the head 1 can be slid downward at the cleaning location, and the area around the corner of the glass surface S The ability to remove water droplets adhering to the surface without leaving them. In addition, the flexible part in the present invention is not limited to the one constituted by the elastic member such as the rubber described above. For example, you may comprise by the joint member which can rotate to all directions, such as a universal joint. Furthermore, the flexible portion is not limited to one constituted by another member as described above. For example, a part that is formed integrally with the head, the head holoreda, and the S-resin, and can be deformed by an external force exceeding a predetermined level. A flexible part can also be comprised by providing.

In the window cleaning tool A2 shown in FIG. 11, the structure of the guide body is different from that in the above embodiment. In the present embodiment, each of the pair of guide bodies 5 ′ has a roller 53 instead of the guide portion 51 in the above embodiment. More specifically, the roller 53 is attached to a support portion 54 provided so as to extend from the head 1 and is configured to be rotatable around a central axis H parallel to the longitudinal direction of the head 1.

According to the present embodiment, when the head 1 is slid downward while the roller 53 is pressed against the glass surface S together with the wiper blade 3, the roller 53 is placed on the glass surface S as shown in FIG. As a result, the contact resistance of the guide body 5 ′ with respect to the glass surface S can be reduced more efficiently. Even if there is a protrusion P protruding from the glass surface S, the roller 53 will be caught by the protrusion P if the outer diameter of the roller 53 is set to a dimension larger than the predetermined size corresponding to the height of the protrusion P. It is possible to get over smoothly. Note that if the outer periphery of the roller 53 is formed of a material having excellent gripping force against the glass surface such as rubber, the roller 53 is prevented from slipping on the glass surface S, and the roller 53 is placed on the glass surface S. It is suitable for smooth rolling.

A window cleaning tool A3 shown in FIG. 13 shows a modification of the window cleaning tool A2. In the window cleaning tool A2 shown in FIG. 11, the guide body 5 'has a configuration in which one roller 53 is attached to the support portion 54. However, in this window cleaning tool A3, the guide body 5 " The plurality of rollers 53 ′ are mounted on the support portion 54 ′. More specifically, the support portion 54 ′ is a glass surface in a state where the wiper blade 3 is in contact with the glass surface S. A curved shape projecting toward the S side is provided, and a plurality of rollers 53 ′ are rotatably attached at predetermined intervals along the support portion 54 ′.

While specific embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications can be made without departing from the spirit of the invention.

[0058] The guide body in the present invention is not limited to the configuration of the above embodiment as long as it is for maintaining the posture of the head. For example, the guide body may be integrally formed with the head, and the guide body may have another shape such as a rod shape. In addition, the guide body has its width and thickness to facilitate elastic deformation for a given load. It may be partially different.

[0059] The lock mechanism according to the present invention may be different from the above-described embodiment when, for example, a magnet or a surface-mounted fastener is used, as long as it has a function of regulating and locking the head with respect to the head holder. A structure can also be adopted.

[0060] The window cleaning tool according to the present invention may be configured not to include a sponge body.

[0061] The specific shape and material of each member constituting the window cleaning tool of the present invention are not limited.

Claims

The scope of the claims

[1] A flat wiper blade having a predetermined length, a head to which the wiper blade is mounted, and a head holder connected to the head and coupled to a handle,

The head is rotatable with respect to the head holder,

The window cleaning tool, wherein the head is integrally provided with a guide body that contacts the glass surface together with the wiper blade to maintain the posture of the head relative to the glass surface.

[2] The window cleaning tool according to claim 1, wherein the head is rotatable with respect to the head holder about an axis parallel to a longitudinal direction of the head.

[3] The window cleaning tool according to claim 1, wherein the head is rotatable in all directions with respect to the head holder.

4. The window cleaning tool according to claim 3, wherein the head and the head holder are connected via a flexible part.

[5] The guide body is in contact with the glass surface together with the wiper blade.

The window cleaning tool according to claim 1, wherein a contact portion with the glass surface is positioned on the head holder side with respect to the wiper blade.

6. The window cleaning tool according to claim 1, wherein the guide body has a curved shape in which the contact portion protrudes toward the glass surface when the wiper blade is in contact with the glass surface.

[7] The guide body is in contact with the glass surface together with the wiper blade.

The window cleaning tool according to claim 6, wherein the window cleaning tool is elastically deformable with respect to a load for pressing the head against the glass surface.

[8] The guide body may be formed to extend from the head in a cantilever manner.

The window cleaning tool according to 7.

[9] The window cleaning tool according to [1], wherein the guide body includes a roller rotatable around a central axis parallel to a longitudinal direction of the head.

10. The window cleaning tool according to claim 1, further comprising a lock mechanism that can lock the head holder with respect to the head holder.

[11] The lock mechanism includes an operation lever that is integrally fixed to the head, and an engaging portion that is formed on the head holder.

11. The state in which the operation lever and the engaging portion are engaged with each other when the predetermined operation is performed on the operation lever so that the state of restricting the rotation of the head is maintained. Window cleaning tool as described in 1.

12. The window cleaning tool according to claim 10, wherein a sponge body having a predetermined length in the longitudinal direction of the head is attached to the head at a position separated from the wiper blade.