JP2011083860A - Scraper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a scraper for applying a large peeling force and also for storing and retrieving a peeling blade and preparing for its replacement with one hand. <P>SOLUTION: The scraper 1 includes: a plate-shaped support frame body 4; a peeling blade 2 detachably mounted to the support frame body 4 while a blade edge 111 projects from a front edge of the support frame body 4; and a plate-shaped support frame auxiliary body 5 for sandwiching the peeling blade 2 by working with the support frame body 4 to form a peeling blade holder 3. The support frame auxiliary body 5 is slidably engaged with the support frame body 4 between an operation position P1 where the blade edge 11 of the peeling blade 2 projects from the front edge 53a, a peeling blade accommodation position P2 which is displaced in an A1 direction to project toward the front edge more than the operation position P1 and a portion including the front edge covers the blade edge 11 of the peeling blade 2, and a peeling blade replacement position P3 which retracts in the A1 direction more than the operation position P1 so that most part of the peeling blade 2 is exposed to allow the removal of the peeling blade 2. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a scraper, and more particularly, to a scraper suitable for removing foreign matter adhering to a window glass.

  A peeling blade holder composed of a pair of plate-like support frame bodies, and a peeling blade sandwiched between the pair of support frame bodies with the blade edge portion exposed from the front edge of the pair of support frame bodies And a cover member that is movably attached to the peeling blade holder between a working position at which the cutting edge portion of the peeling blade is exposed and a peeling blade housing position that covers the cutting edge portion of the peeling blade is known. (Non-patent document 1 and Non-patent document 2).

  Among the scrapers of this type, in the scraper of Non-Patent Document 1, the cover member can be displaced in a “U” shape between the working position and the peeling blade accommodation position on one outer surface of the peeling blade holder. The cover member is elastically subjected to an elastic shift force in a direction toward the connecting portion between the two legs of the U by a spring, and both ends of the U leg are defined as a stable working position and a peeling blade accommodating position.

  In this scraper, there is an explanation that the cover member can be displaced with one hand between the working position and the peeling blade housing position, but in reality it is not easy to displace with one hand, and it is actually necessary to use both hands. Instead, when replacing the peeling blade, at least the connection (screw) between the pair of plate-like support frame bodies must be loosened and the peeling blade needs to be taken in and out. If the peeling blade is locked to one support frame body portion to stably support the peeling blade, the pair of plate-like support frame body portions are separated, and then the peeling blade It is necessary to exchange.

  On the other hand, in the scraper of Non-Patent Document 2, the cover member is attached so as to be able to advance and retreat / slid along the inner surface of one of the pair of plate-like support frame bodies, and the peeling blade Is locked to the inner surface side of the other support frame body portion of the pair of plate-like support frame body portions.

  Even in the scraper of this Non-Patent Document 2, since it advances and retreats and slides along the inner surface of one support frame body part between the pair of plate-like support frame parts and pressed against the peeling blade, It is not only necessary to use both hands to displace the cover member between the work position and the peeling blade housing position, but when replacing the peeling blade, the pair of plate-like support frame parts were separated. Above, it is necessary to replace the peeling blade.

  In addition, a pair of plate-like support frame wall portions and a pair of side wall portions are integrally formed with a peeling blade holder, a peeling blade support plate that can enter and exit in a plate-like hole portion of the frame body, and the peeling blade support A peeling blade supported by a plate, a working position for exposing the cutting edge of the peeling blade from the front edge of the frame, and a peeling blade housing in which the cutting edge of the peeling blade enters the slit-shaped hole of the peeling blade support plate A scraper is also known in which a peeling blade support plate is movably attached to a peeling blade holder between positions (Non-Patent Document 3).

  In the scraper of Non-Patent Document 3, since the peeling blade support plate itself that supports the peeling blade is movable, there is a possibility that it is difficult to support the peeling blade firmly so as to withstand a strong impact during peeling. . Further, in the scraper of Non-Patent Document 3, since the peeling blade enters and exits the slit-like hole portion of the peeling blade support plate, the foreign matter closes the slit-like hole portion when foreign matter adheres near the blade edge portion of the peeling blade. Therefore, there is a possibility that a support may occur when the peeling blade support plate enters and exits. Furthermore, in the scraper of Non-Patent Document 3, in order to replace the peeling blade, it is not only necessary to further protrude the peeling blade support plate beyond the working position, but the peeling blade is originally used as the peeling blade support plate. Since it supports, there exists a possibility that a peeling blade may remove | deviate easily. In addition, when pushing out the peeling blade to move from the state where the peeling blade is stored in the peeling blade holder to the state where the peeling operation is performed, the extruding amount of the peeling blade is merely slightly increased, and the position of the peeling blade is changed. In many cases, the peeling blade may be accidentally removed from the peeling blade holder.

  In addition, in the scope of the preliminary investigation, there is no patent document that discloses the same technology as the above non-patent document, and as the patent document, the peeling blade can be held in the holder of the peeling blade in an exchangeable manner. However, even a structure that can be moved between the working position and the storage position is not found (for example, Patent Documents 1 to 3).

Japanese Utility Model Publication No. 51-73864 Japanese Utility Model Publication No. 52-132400 Japanese Utility Model Publication No. 49-36320

http://www.pikkabikan.com/1332_983.html (URL on the Internet) etc., sold under the trade name “U-Slider” [searched on October 5, 2009] http://ungerwindowcleaner.com/protrim10/ (URL on the Internet) etc. displayed as the product name “ProTrim10” [searched on October 5, 2009] http://www.kanzawa.co.jp/product/scraper/02.html (URL on the Internet) etc. displayed as the product name “Compact Scraper” [Search October 5, 2009]

  The present invention has been made in view of the above-described points, and an object of the present invention is to provide a scraper that not only can apply a large peeling force, but also can take out and remove the peeling blade and prepare for replacement with one hand. .

  In order to achieve the above object, the scraper of the present invention has a plate-like support frame main body, and a peeling blade removably attached to the support frame main body in a state in which the blade tip projects from the front edge of the support frame main body. A plate-like support frame auxiliary body which forms a peeling blade holder by sandwiching the peeling blade in cooperation with the support frame body, the working position at which the cutting edge of the peeling blade protrudes from the front edge, and the work The peeling blade storage position where the part including the front edge covers the cutting edge of the peeling blade is displaced so as to protrude to the front edge side from the position, and the most part of the peeling blade is exposed to allow the removal of the peeling blade. And a detachable blade replacement position that is retracted from the working position and slidably engaged with the support frame body.

  In the scraper of the present invention, since it has a “support frame main body and a peeling blade” and “the peeling blade is attached to the support frame main body”, the peeling blade can be supported by the support frame main body itself. Even if the resistance (load) received is large, the peeling operation can be performed by applying a large force (peeling force) with the peeling blade. Further, in the scraper of the present invention, “a plate-like support frame main body (with a peeling blade detachably attached to the support frame main body with the blade edge protruding from the front edge) and a plate-like support frame auxiliary body; The support blade auxiliary body is attached to the support frame body between the working position, the release blade storage position, and the release blade replacement position. Since the support frame body is slidably displaced relative to the support frame body, the scraper can be moved to the “work position, release blade storage position and release blade replacement position”. Can be set. Therefore, the scraper can be set to the “work position, peeling blade storage position and peeling blade replacement position” with one hand in practice. That is, in the scraper of the present invention, with one hand, “the working position where the cutting edge of the peeling blade protrudes from the front edge”, “(the front edge is displaced so as to protrude to the front edge side from the working position) Exfoliating blade storage position where the part including the exfoliating blade covers the exfoliating blade ”and“ extracting exfoliating blade (retracted from the working position so as to expose the most part of the exfoliating blade to allow removal of the exfoliating blade) ” Position ". Accordingly, it is possible to easily perform work at high places such as removal by removing dirt and other foreign matters adhering to the window glass on the high floor of the building.

  In the scraper of the present invention, typically, each of the support frame main body and the support frame auxiliary body includes an opening that allows insertion of a hand, and the edges of the two openings are grasped (gripped) by the hand inserted into the opening. The support frame auxiliary body is configured to be set at the work position.

  In that case, the support frame auxiliary body can be displaced so that both openings overlap with respect to the support frame main body simply by “grabbing the edges of the two openings with the hand inserted into the opening”, and the support frame auxiliary body of the scraper can be moved. The working position can be set. Therefore, for example, for carrying, the supporting frame auxiliary body is “a peeling blade storage position (displaced so as to protrude to the front edge side from the working position and a portion including the front edge covers the cutting edge portion of the peeling blade)” For a scraper that is set to be hidden and the blade edge is hidden, the support frame auxiliary body of the scraper can be set to the working position simply by “grabbing the edge of the two openings with the hand inserted into the opening”. The scraper that has been stored and carried can be started by simply grasping a predetermined portion without any special preparatory operation before use. In other words, since it is not necessary to consider the convenience of starting use in advance, when storing and carrying, it is only necessary to set the peeling blade storage position so that the blade edge is hidden and safety is ensured. Will be enhanced. Conversely, even after replacing the peeling blade by setting it to the peeling blade replacement position, simply hold the scraper support frame auxiliary body simply by “grabbing the edges of the two openings with the hand inserted into the opening”. The working position can be set. Therefore, after replacing the peeling blade, the operation can be started or resumed immediately by simply grasping (grabbing) a predetermined portion. Further, in this case, since the work position is realized by “grabbing the edges of the two openings with the hand inserted into the opening”, the work position becomes the reference position and is moved to one side with respect to the work position. When it is moved, it is set to the peeling blade storage position, and when it is moved to the other side, it is set to the peeling blade replacement position. It should be noted that the opening not only allows the fingers to be grasped (gripped), but also serves to lighten or lighten the entire scraper.

  In the scraper of the present invention, typically, the peeling blade has a plurality of holes, and each of the holes is engaged with a corresponding small protrusion of the support frame main body.

  In that case, the peeling blade can be detachably attached to the support frame body. In this case, the support frame main body may further include a hook-shaped protrusion that forms a recess with which the trailing edge of the peeling blade is engaged. However, the peeling blade may be fixed to the support frame body by other means if desired.

  In the scraper of the present invention, typically, when the support frame auxiliary body is retracted with respect to the support frame body so as to take the peeling blade replacement position, the trailing edge of the peeling blade becomes the front edge of the support frame auxiliary body. It is detachably engaged with it.

  In that case, not only can the peeling blade be replaced easily, but also when the support frame auxiliary body is set at the peeling blade replacement position, there is little possibility that the peeling blade will come off the support frame main body. In particular, when “the peeling blade has a plurality of holes and each of the holes is engaged with a corresponding small protrusion of the support frame body”, “the trailing edge of the peeling blade by the front edge of the support frame auxiliary body” When the support frame auxiliary body is set at the separation blade replacement position, the separation blade can be replaced (removed and attached) in a state where there is little possibility that the separation blade is detached from the support frame main body. Can be easily done.

  In the scraper of the present invention, typically, when the support frame auxiliary body is set to the peeling blade storage position, the support frame auxiliary body is moved from the peeling blade storage position to another position where the peeling blade is exposed. There is provided locking means for regulating

  In that case, the scraper blade tip that is in a state where the blade edge of the peeling blade is covered is less likely to be accidentally exposed, the peeling blade can be stored without being exposed accidentally, and the peeling blade can be stored incompletely. There is little. This locking means may be the same as the means for stably positioning at another position (working position or peeling blade replacement position), but it is more reliable than such stable positioning means. It is preferable that the supporting frame auxiliary body can be kept at the position. Such a locking means is, for example, a plate spring-like shape on the support frame main body that remains relatively rearward with respect to the support frame auxiliary body at the peeling blade storage position where the support frame auxiliary body is displaced forward. And an engagement protrusion formed on the leaf spring-like portion so that it is locked to the locking portion in the vicinity of the rear edge of the support frame auxiliary body at the peeling blade storage position. Become. In this case, the support frame auxiliary body and the support frame main body can be relatively displaced from the peeling blade storage position toward the work position only after grasping firmly.

  When the displacement from the peeling blade storage position is regulated as described above, in the scraper of the present invention, typically, when the support frame auxiliary body takes the respective positions of the working position and the peeling blade replacement position, each position In FIG. 2, the spring-loaded engagement piece is configured to fit into the corresponding hole so as to be positioned more stably than the intermediate position between the peeling blade storage position, the working position, and the peeling blade replacement position.

In that case, resistance (load) increases against leaving the work position and the peeling blade replacement position in order to move from the work position and the peeling blade replacement position to another position, so that it is easily held stably at the position. Not only that, when entering the working position or peeling blade replacement position from another state or position, the resistance (load) decreases once and then suddenly receives a larger resistance (load) than before. The operator (user or operator) can feel a kind of operation feeling or click feeling, and not only does the operation mistake hardly occur but also the operation feeling is good. In this specification, (1) a large resistance is applied before the resistance is reduced when removing from the stable position, and (2) a change after the resistance is once reduced after entering the stable position. Both of receiving a great resistance to the above are described as “click feeling”. However, the click feeling may indicate only the former, that is, (1), or only the latter, that is, (2).


During the peeling operation, the peeling operation can be performed reliably without changing the exposed state of the peeling blade (when in the working position), and the peeling blade may be unexpectedly detached or dropped, or the peeling blade may be difficult to remove. There is no (Peeling blade replacement position). Further, since the operator can surely recognize that the support frame auxiliary body is set at each position, the peeling blade is excessively exposed or the peeling blade is not sufficiently exposed when the peeling blade is replaced. There is little possibility that a situation will occur.

  For this purpose, for example, a hole is formed in one of the support frame main body and the support frame auxiliary body at an interval in the relative movement direction, and the support frame auxiliary body has a working position and a peeling blade replacement position, respectively. Each time the position is taken, the pin-like projection supported on the other of the support frame main body and the support frame auxiliary body is fitted into the corresponding hole in a spring-loaded state (supported by the spring on the back side). Configured as follows. In that case, the spring-loaded protrusions and the series of holes are provided in pairs on both sides in the width direction. Further, when taking the peeling blade storage position, a similar structure (a structure in which a spring-loaded engagement piece fits into the hole) may be adopted. Since the transition to the exposed state involves a change from a state where the blade is hidden to a state where the blade is exposed, it is preferable to distinguish from other changes. It is preferable to change the depth and the inclination of the inclined portions on both sides of the hole. If desired, instead of spring-loading the engaging piece in the thickness direction, for example, in a plane parallel to the extending surface of the plate-like support frame main body and the plate-like support frame auxiliary body, and the support frame main body And a lever that is swingable and spring-loaded in one direction is provided in the region between the support frame auxiliary body and the lever according to the rotation of the lever accompanying the relative displacement of the support frame auxiliary body with respect to the support frame main body. A pin may be fitted into a recess formed on one side of the arm portion at an interval.

  In the scraper of the present invention, the support frame auxiliary body typically includes a force receiving portion that receives a displacement force that displaces the support frame auxiliary body from the working position to the peeling blade storage position.

  In that case, just place a part of the hand on the support frame body and push the force receiving part of the support frame auxiliary body with the other part of the hand to move the support frame auxiliary body from the working position to the peeling blade storage position. Can be displaced. In particular, when there is an opening that allows insertion of a part of the hand as described above, the rear edge of the opening of the support frame auxiliary body is supported by a part of the finger, and a pressing force is applied to the force receiving part with the thumb. Thus, the support frame auxiliary body can be displaced from the working position to the peeling blade storage position. Here, the force receiving portion typically includes a concave portion (force receiving concave portion, more specifically, a bottom wall portion of the concave portion) formed in the rear end portion of the support frame auxiliary body. When a force receiving recess is formed, a leaf spring-like locking portion is formed on the support frame main body so as to be positioned in the region formed by the recess (at the peeling blade storage position) and is engaged with the bottom wall portion of the recess. It can also be configured to be stopped. However, the force receiving portion may be a convex portion instead of the concave portion, and a force receiving portion of the same or other form may be formed in another portion of the support frame auxiliary body. Further, the force receiving portion may be formed on the support frame main body instead of being formed on the support frame auxiliary body.

  In the scraper of the present invention, the support frame auxiliary body typically includes another force receiving portion that receives a displacement force that displaces the support frame auxiliary body from the working position to the peeling blade replacement position.

  In that case, a part of the hand is put on the support frame main body, and the other part of the hand pushes the another force receiving portion of the support frame auxiliary body to remove the support frame auxiliary body from the working position. It can be displaced to the exchange position. For example, when there is an opening that allows the insertion of a part of the hand as described above, the rear end portion of the support frame main body is supported and the rear edge of the opening of the support frame auxiliary body is used as another force receiving portion. By applying a pressing force to the rear edge portion with the thumb, the support frame auxiliary body can be displaced from the working position to the peeling blade replacement position. Although the same operation may be performed when the support frame auxiliary body is displaced from the peeling blade storage position to the working position, in that case, it is only necessary to grasp the rear edge of the opening by hand as described above. .

  In the scraper of the present invention, typically, the support frame main body includes a pair of guide engagement portions at a portion of the both ends in the width direction behind the front edge, and the support frame auxiliary body has the guide engagement at both ends in the width direction. A pair of engaged portions that engage with the portion.

  In that case, the engagement between the pair of guide engaging portions of the support frame main body and the pair of engaged portions of the support frame auxiliary body can be realized without being affected by the presence of the peeling blade. Engagement with the support frame auxiliary body can be realized firmly and (stably) stably.

  In the scraper of the present invention, typically, engaging portions that define a movable range in the front-rear direction of the engaged portion are formed at both ends in the front-rear direction of the engaging portion.

  In this case, the movable range of the support frame auxiliary body with respect to the support frame main body can be defined easily and reliably, and the peeling blade can be stored (covered), exposed, and exchanged reliably.

FIG. 3 is a perspective explanatory view of a scraper according to a preferred embodiment of the present invention in which a support frame auxiliary body is in a working position and is in a peeling working state. FIG. 1 shows the scraper of FIG. 1, (a) is an explanatory plan view as viewed in the IIA direction in FIG. 1, (b) is an explanatory side view as viewed in the IIB direction in FIG. 1, and (c) is in the IIC direction in FIG. FIG. FIG. 2 is a perspective explanatory view of the scraper of FIG. 1 in which the support frame auxiliary body is in the peeling blade storage position and is in the peeling blade storage state. 3 shows the scraper of FIG. 3, (a) is an explanatory plan view as seen in the IVA direction in FIG. 3, (b) is a side explanatory view as seen in the IVB direction in FIG. 3, and (c) is in the IVC direction in FIG. 3. FIG. FIG. 2 is a perspective explanatory view of the scraper of FIG. 1 in which a support frame auxiliary body is in a peeling blade replacement position and is in a peeling blade replacement state. 5 shows the scraper of FIG. 5, (a) is an explanatory plan view of the VIA direction in FIG. 5, (b) is an explanatory side view of the VIB direction in FIG. 5, and (c) is in the VIC direction in FIG. 5. FIG. The support frame main body which comprises the scraper of FIG. 1 is shown, (a) is plane explanatory drawing seen from the inner surface side, (b) is side explanatory drawing which looked at the support frame main body of (a) in the VIIB direction, (C) is the side explanatory drawing which looked at the support frame main part of (a) in the VIIC direction, (d) is the back explanatory drawing which looked at the support frame main part of (b) from the outer surface side in the VID direction. FIG. 2 shows a support frame auxiliary body constituting the scraper of FIG. 1, (a) is an explanatory plan view seen from the outer surface side, (b) is a side view of the support frame auxiliary body of (a) in the VIIIB direction. Explanatory drawing, (c) is a side explanatory view of the support frame auxiliary body of (a) as viewed in the VIIIC direction, (d) is a back explanatory view of the support frame auxiliary body of (b) as viewed in the VIIID direction from the inner surface side. . FIG. 2 is an explanatory perspective view showing a state in which a scraper of a preferred embodiment of the present invention in the working position of FIG. The perspective explanatory view which showed how to hold | maintain (how to apply force) when displacing the support frame auxiliary body of the scraper of FIG. 1 from a working position to a peeling blade accommodation position. FIG. 4 is a perspective explanatory view showing a state where the scraper of FIG. 1 is held by hand and the setting to the peeling blade storage position of FIG. 3 is completed. FIG. 6 is an explanatory perspective view showing a state in which the scraper is grasped by hand to return the scraper from the peeling blade storage position of FIG. 3 or the peeling blade replacement position of FIG. 5 to the working position of FIG. 1. FIG. 6 is an explanatory perspective view showing a state in which a part of the scraper is grasped by hand and the scraper is changed from the working position in FIG. 1 to the peeling blade replacement position in FIG. 5.

  A preferred embodiment of the present invention will be described based on a preferred embodiment shown in the accompanying drawings.

  A scraper 1 according to a preferred embodiment of the present invention includes, for example, a peeling blade 2 and a peeling blade holder 3 that supports the peeling blade 2 as can be seen from FIGS. 1 and 2 (a) to (c). The peeling blade holder 3 includes a substantially plate-like support frame main body 4 with which the peeling blade 2 is engaged, and the support frame main body 4 slidable in the front-rear directions A1 and A2. A substantially plate-like support frame auxiliary body 5 engaged therewith.

  Before describing the peeling blade holder 3 in detail, the peeling blade 2 will be briefly described based on (a) and (b) of FIG.

  The peeling blade 2 is made of a thin metal plate 10 such as steel having a long and thin rectangular shape, and one side of the long side of the thin plate 10 is a cutting edge portion 11. In the example shown in FIGS. 6A and 6B, the blade tip 11 is in the form of a sharp blade sharpened so that the tip becomes thinner. However, the tip may not be sharp as long as the blade edge portion 11 can be peeled off. The material may also be other materials such as ceramic instead of metal or alloy.

  The peeling blade 2 also has a long hole 12 as an engaged portion at a substantially central portion in the front-rear direction A of the rectangular thin plate 10 and at a position equidistant from the central portion in the width direction B in the width direction. And long holes 13A and 13B (when they are not distinguished from each other or collectively referred to as 13). As long as there are two or more elongated holes to be engaged, the number may be different. Moreover, the hole of another shape may be sufficient instead of a long hole. In addition, the engaged portion may have another engagement shape instead of the hole if desired. In addition, the peeling blade 2 is engaged with the peeling blade holder 3 also at the rear edge 14 as described later.

  The support frame main body 4 and the support frame auxiliary body 5 are made of an engineering plastic such as polycarbonate or polyacetal that has high rigidity, high mechanical strength, and excellent chemical characteristics. The support frame main body 4 and the support frame auxiliary body 5 are made of a material other than plastic as long as the material has high rigidity, high mechanical strength, and excellent chemical characteristics. May be.

As shown in FIGS. 7A to 7D, the support frame main body 4 is composed of a substantially rectangular plate-like body 20, and one main surface of the plate-like body 20 is an outer surface 21, and the other The main surface is the inner surface 22. The ratio of the length in the width direction B of the plate-like body 20 to the length in the front-rear direction A is typically ^21/2 . However, it may be larger or smaller. The support frame main body 4 has a rectangular long side portion 23a, 23b and a long side portion 23b as a rear edge and two short side portions 23c, 23d so that the user can easily hold and apply force. The portions corresponding to the two corners between the two are connected by smooth oblique sides 24A and 24B (when not distinguished or generically, they are represented by reference numeral 24). Here, the ratio of the lengths of the oblique sides 24A and 24B, the lengths of the short sides 23c and 23d, and the length of the rear edge 23b is, for example, about 3: 4: 5. However, for example, the ratio may be different in consideration of the gripping and handling of the holder 3 of the scraper 1, ease of carrying, and aesthetic appearance. The short side portions 23c and 23d are formed with guide engaging portions 25A and 25B (when they are not distinguished or collectively referred to as 25). Each of the guide engaging portions 25A and 25B is somewhat cut off with respect to side edges 26A and 26B that define the short side portions 23c and 23d of the plate-like body 20 (when not distinguished or collectively referred to as 26). A bottom wall portion or a back wall portion 27aA, 27aB (represented by reference numeral 27a when not distinguished from each other or generically). The edge portions 27bA and 27bB of the portions 27aA and 27aB (represented by reference numeral 27b when not distinguished or collectively referred to) are recessed in the outer surface 11 so as to be engaged with a guide engaged portion of the support frame auxiliary body 5 described later. 27cA and 27cB (when not distinguished or collectively referred to as 27c) are formed and thinned.

  The support frame main body 4 also includes a large opening 30 having a substantially rectangular shape at the center. The opening 30 has long sides 30a, 30b that form a rectangle parallel to the long sides 23a, 23b of the plate-like body 20 of the support frame body 4, and the long sides 30a, 30b and the short sides 30c, 30d The corners between are connected by a smoothly curved arc-shaped part 31. Here, a portion 32 between the long side portion 30 b of the opening 30 and the long side portion 23 b serving as the rear edge of the plate-like body 20 is a grip portion 32.

  The support frame body 4 further includes a peeling blade engaging portion 35 that engages and supports the peeling blade 2 at a portion 38 of the inner surface 22 near the long side portion 23a that forms the front edge. The part 38 of the inner surface 22 is a recessed part 38a that is one step lower than the other parts or regions.

  The peeling blade engaging portion 35 includes an elongated fitting projection 36a located in the center in the width direction in the vicinity of the front edge 23a, and fitting small projections 36bA and 36bB (on both sides in the width direction of the fitting projection 36a). When not distinguishing or generically, it is represented by reference numeral 36b). In addition to the fitting projections 36a and 36b, the peeling blade engaging portion 35 is provided with locking projections 37a and 37bA and 37bB as elongated hook-like projections. 37b and 37). The fitting protrusions 36bA, 36a, and 36bB have positions and shapes that are just fitted to the elongated holes 13A, 12, and 13B of the peeling blade 2. Of the locking projections 37bA, 37a, and 37bB, the front edge portion projects into the recess 38a in the A1 direction, and the peeling blade 2 is fitted into the fitting projections 36bA, 36a, and 36bB through the elongated holes 13A, 12, and 13B. When this is done, the rear edge 14 of the peeling blade 2 is provided with a locking recess 37c to be fitted and engaged.

  The support frame main body 4 is also provided with a strong leaf spring-like locking portion 40 in the region serving as the grip portion 32. The locking portion 40 is separated from the main body region 41 serving as the grip portion 32 at the front edge 40a and the left and right side edges 40b and 40c via the portions 42a, 42b and 42c of the U-shaped slit 42, and only the rear edge 40d. Are continuously connected to the main body region 41. Therefore, as shown in FIG. 7B, the locking portion 40 can swing in the directions D1 and D2 with respect to the main body region 41 of the grip portion 35, as shown in FIG. 7B. is there.

  The locking portion 40 further includes a locking projection 43 that protrudes toward the front edge side on the surface on the inner surface 22 side, and the leading edge 43a of the projection 43 is a cutting edge portion of the peeling blade 2 as will be described later. 11 is used as a locking part for restricting the exposure of the 11 by mistake. In this example, the flat surface 43 b is formed in the vicinity of the tip of the locking projection 43, but it may not be necessary.

  The support frame main body 4 is further provided with spring-loaded engagement protrusions 45A and 45B on the left and right sides of the opening 30 on the inner surface 22 (reference numeral 45 when not distinguished or collectively referred to as FIG. 1). Etc.) and an engaging protrusion retainer 46A, 46B (when not distinguished or collectively referred to as 46).

  The support frame main body 4 also includes a through hole 47 in the vicinity of the grip portion 32, and a strap or strap (not shown) for preventing the fall is attached to the through hole 47. To avoid accidental drops.

  The support frame body 4 includes an inclined surface 21a on the side of the long side 23a serving as the front edge of the outer surface 21, so that the indication frame body 4 can be connected to other members and the like during the peeling operation. Avoid interference.

As shown in FIGS. 8A to 8D, the support frame auxiliary body 5 is composed of a substantially rectangular plate-like body 50 like the support frame main body 4, and one main surface of the plate-like body 50 is An outer surface 51 is formed, and the other main surface is an inner surface 52. The ratio of the length in the width direction B of the plate-like body 50 to the length in the front-rear direction A is also typically ^21/2 . However, it may be larger or smaller. In a state where the peeling blade holder 3 is formed in combination with the support frame main body 4, the inner surface 52 of the support frame auxiliary body 5 faces and abuts against the inner surface 22 of the support frame main body 4 (see FIG. 4 and the like).

  The support frame auxiliary body 5 also has a rectangular long side portion 53a, 53b which is the rear edge of the long side portion 53b and two short side portions 53c, 53c, so that the user can easily hold and apply force. The portion corresponding to the two corners between 53d is connected by smooth oblique sides 54A and 54B (when not distinguished or generically represented by reference numeral 54).

  The short side portions 53c and 53d of the support frame auxiliary body 5 are engaged with the guide engaging portions 25A and 25B of the support frame main body 2, and are slidably displaced in the A1 and A2 directions with respect to the guide engaging portions 25A and 25B. Guide engaged portions 55A and 55B (when not distinguished or collectively referred to as 55) are formed. Since engagement or engagement is simply a relative way of understanding, the guided engaged portions 55A and 55B are hereinafter also referred to as guide engaging portions 55A and 55B. The guide engaging portions 55A and 55B are inwardly rising portions 56aA and 56aB protruding from the inner surface 52 in the inward direction E1 in the thickness direction E at the end edges of the short side portions 53c and 53d of the plate-like body 50 (not distinguished). 56bA and 56bB projecting inward B1 and B2 in the width direction B from the rising end (when not distinguished or collectively referred to as 56b) In the concave portions 56cA and 56cB of the guide engaging portions 55A and 55B having the shape of a “U” as a whole and having a kind of pawl structure (when not distinguished or collectively referred to as 56c), The edge portions 27bA and 27bB of the guide engaging portions 25A and 25B of the support frame main body 2 are fitted and engaged. At this time, the engagement protrusions 56bA and 56bB of the guide engagement portions 55A and 55B of the support frame auxiliary body 5 are engaged with the recesses 27cA and 27cB of the edge portions 27bA and 27bB of the support frame main body 2 on the inner surface. .

  Of the guide engaging portions 55A and 55B of the support frame auxiliary body 5, the front end portions of the inwardly rising portions 56aA and 56aB and the outer surfaces of the inner side surfaces of the engaging protrusions 56bA and 56bB are smoothly curved as a whole. The character surfaces 56dA and 56dB (when not distinguished or collectively referred to as 56d). Accordingly, the edge portions 27bA and 27bB of the support frame main body 4 are supported by the support frame auxiliary in a state where the guide engagement portions 25A and 25B of the support frame main body 4 and the guide engagement portions 55A and 55B of the support frame auxiliary body 5 face each other. The U-shaped surfaces 56dA and 56dB of the guide engaging portions 55A and 55B of the body 5 are brought into contact with each other, and the inner surface 52 of the support frame auxiliary body 5 is pressed so as to be close to the inner surface 22 of the support frame main body 4. The edge portions 27bA and 27bB of the concave bottom wall portions 27aA and 27aB of the support frame body 4 are supported along the “U” -shaped surfaces 56dA and 56dB of the guide engagement portions 55A and 55B of the support frame auxiliary body 5. The support frame auxiliary body 5 is deformed so that the inward rising portions 56aA and 56aB of the guide engaging portions 55A and 55B of the frame auxiliary body 5 are expanded outward in the width direction B, and the guide engagement of the support frame auxiliary body 5 is performed. Recesses 56cA, 56 of the portions 55A, 55B The edge portions 27bA and 27bB of the guide engagement portions 25A and 25B of the support frame main body 2 are fitted into B, and the engagement protrusion portions 56bA and 56bB of the guide engagement portions 55A and 55B of the support frame auxiliary body 5 are the inner side surfaces. Thus, by engaging with the recesses 27cA and 27cB of the edge portions 27bA and 27bB of the support frame main body 2, the guide engagement portions 25A and 25B of the support frame main body 4 and the guide engagement portions 55A of the support frame auxiliary body 5 are obtained. 55B is engaged and both are assembled.

  The support frame auxiliary body 5 also includes a large opening 60 having a substantially rectangular shape at the center. In the opening 60, long side portions 60a and 60b having a rectangular shape are parallel to the long side portions 53a and 53b of the plate-like body 50 of the support frame auxiliary body 5, and the long side portions 60a and 60b and the short side portions 60c and 60d are provided. The corners between the two are connected by a smoothly curved arc-shaped portion 61. Here, a portion 62 between the long side portion 60 b of the opening 60 and the long side portion 53 b serving as the rear edge of the plate-like body 50 is a grip portion 62.

  The opening 60 of the support frame auxiliary body 5 has substantially the same size and shape as the opening 30 of the support frame main body 4, and in particular, the length (width) in the A direction of the gripping portion 62 of the support frame auxiliary body 5. ) Is the same size H as the length (width) in the A direction of the grip portion 32 of the support frame body 4.

  The support frame auxiliary body 5 further includes a recess 57a and recesses 57bA, 57bB (when not distinguished from each other) in a portion of the inner surface 52 near the long side portion 53a that forms the leading edge. When collectively referred to, it is represented by reference numeral 57b). The concave portion 57a and the concave portions 57bA and 57bB are protrusions 37a that form the peeling blade engaging portion 35 of the support frame main body 4 when the support frame auxiliary body 5 is relatively displaced in the A1 and A2 directions with respect to the support frame main body 4. (And 36a) and protrusions 37bA, 37bB in the A1, A2 direction displacement are allowed and guided.

  The support frame auxiliary body 5 is also provided with a force receiving recess 58 in the long side portion 53b of the rear edge of the gripping portion 62, and a roughened surface suitable for receiving force on the outer surface 51 side of the gripping portion 62. A portion 59 is provided. The force receiving recess 58 is suitable, for example, for receiving a force in the A1 direction on the bottom wall portion 58a of the recess 58 with the fingertip in the recess 58. The roughened portion 59 is composed of a plurality of groove portions 59a extending in parallel to the width direction B with a small interval of about 2 to 3 mm in the A direction, for example, the palm of the fingertip of the thumb is the roughened portion 59. It is suitable for receiving a force in the A direction from the thumb while being pressed.

  The support frame auxiliary body 5 further includes an engaging portion 64 that locks the leaf spring-like locking portion 40 of the support frame body 4 on the inner surface of the inner surface 52 that is the gripping portion 62. It has a front-rear extending recess 65 that is located on the front side (side shifted in the A1 direction) of the engaging portion 64 and allows and guides the displacement of the leaf spring-like locking portion 40 in the A direction. The engaging portion 64 includes a recess 66 having a bottom surface 66a that is flush with the bottom surface 65a of the recess 65, and an engagement projecting relatively to the recess 66 and the recess 65 with the most part of the inner surface 52 being flush. And a protrusion 67. For example, the recesses 66 and 65 may be connected such that the size of the recesses 66 and 65 in the width direction B is larger than the length of the engagement protrusion 67 in the B direction.

  Accordingly, the rear edge 67a of the engagement protrusion 67 of the support frame auxiliary body 5 is forward (A1 direction) from the front edge or end surface 43a of the engagement protrusion 43 of the leaf spring-like engagement part 40 of the support frame main body 4. If the support frame auxiliary body 5 is once arranged with respect to the support frame main body 4 so as to be positioned at the position, then the support frame auxiliary body 5 is displaced backward (A2 direction) with respect to the support frame main body 4. (In other words, if the support frame body 4 is displaced in the A1 direction with respect to the support frame auxiliary body 5), the front edge of the locking projection 43 of the leaf spring-like locking portion 40 of the support frame body 4 Since the end face 43a is engaged with the rear edge 67a of the engaging protrusion 67 of the support frame auxiliary body 5, the rear frame (A2 direction) relative displacement of the support frame auxiliary body 5 with respect to the support frame main body 4 is prohibited. Therefore, in order to relatively displace the support frame auxiliary body 5 backward (A2 direction) with respect to the support frame main body 4, it is necessary to intentionally release the engagement. For this purpose, for example, the back surface of the leaf spring-like locking portion 40 located at the force receiving recess 58 of the support frame auxiliary body 5 is pressed (that is, the leaf spring-like locking portion 40 is pressed from the inner surface 22 side). The leaf spring-like locking portion 40 may be swung in the D1 direction.

  The support frame auxiliary body 5 further extends in the front-rear direction to allow and guide the displacement of the spring-loaded engagement projections 45A, 45B in the A1, A2 direction on the left and right sides of the opening 60 of the inner surface 52. Grooves 70A and 70B (when not distinguished or generically represented by reference numeral 70) and recesses 71A and 71B that are stabilized when the engaging projections 45A and 45B reach a predetermined position in the A direction (when not distinguished or generically) And 72A, 72B (when not distinguished or collectively referred to as 72). When the engagement protrusions 45A and 45B are just fitted into the recesses 71A and 71B, the scraper 1 is in a state suitable for a peeling operation (state S1 described later), and the engagement protrusions 45A and 45B are the recesses 72A and 72B. If it just fits, it will be in the state (state S3 mentioned later) suitable for replacement | exchange of the peeling blade 2 of the scraper 1. FIG. In addition, the fitting / dropping of the engaging protrusion 45 into the recesses 71 and 72 gives a feeling of positioning or clicking, and the state in which the engaging protrusion 45 is stably fitted into the recesses 71 and 72 of the engaging protrusion 45 is also shown. An operational feeling is also obtained when the support frame auxiliary body 5 is forcibly pushed out and displaced relative to the support frame main body 4.

  The support frame auxiliary body 5 also includes a wide slit-shaped recess 74 in the vicinity of the grip portion 32. The slit-shaped recess 74 is formed so that the support frame auxiliary body 5 is relative to the support frame body 4 in the A1 and A2 directions in a state where a fall prevention strap (not shown) is attached to the through hole 47 of the support frame body 4. When displaced, it becomes a refuge for the strap and prevents the strap from interfering with the relative displacement. Reference numeral 75 denotes a hole formed when the guide engaging portion 55 is formed by molding, and may be omitted.

  The peeling blade holder 3 of the scraper 1 as described above has the engagement protrusions 45A and 45B in a state where the engagement protrusions 45A and 45B are loosely fitted to the engagement protrusion holding parts 46A and 46B of the support frame body 4. After the inner surface 52 of the support frame auxiliary body 5 faces the inner surface 22 of the support frame main body 4 so as to fit into the groove portions 70A and 70B, the inner surface 22 of the support frame main body 4, the support frame auxiliary body 5 and the support are supported. The support frame main body 4 and the support frame auxiliary body 5 are brought close to each other so as to bring the inner surface 52 of the frame auxiliary body 5 into close contact, and the guide engaging portions 55A and 55B of the support frame auxiliary body 5 and the guide of the support frame main body 4 are guided. It is assembled by engaging the engaging portions 25A and 25B.

  In the state assembled in the form of the peeling blade holder 3 as described above, the support frame main body 4 and the guide engagement portions 25A and 25B and the guide engagement portions 55A and 55B of the support frame auxiliary body 5 that are engaged with each other are supported. While the frame body 4 and the support frame auxiliary body 5 are allowed to slide or slide relatively in the A1 and A2 directions, the support frame main body 4 and the support frame auxiliary body 5 are prohibited from being separated. ing.

  The peeling blade 2 may be mounted after the support frame auxiliary body 5 is set to a specific peeling blade replacement position (a position P3 described later) with respect to the support frame main body 4 in the pre-assembled peeling blade holder 3. However, if desired, the peeling blade 2 may be engaged with the peeling blade engaging portion 35 of the support frame body 4 in advance when the peeling blade holder 3 is assembled. Here, for simplification of explanation, after the peeling blade 2 is engaged with the peeling blade engaging portion 35 in advance, the support frame auxiliary body 5 is attached to the support frame main body 4, and the peeling blade holder 3 is formed.

  Next, the operation of the scraper 1 configured as described above will be described mainly with reference to FIGS.

  The support frame auxiliary body 5 that is relatively displaced in the front-rear directions A1 and A2 with respect to the support frame main body 4 with which the peeling blade 2 is stationaryly engaged is peeled off so that it can overlap with the support frame main body 4 and can be peeled off. The working position P1 (FIGS. 1 and 2 (a) to (c) in FIG. 1 and FIG. 2) where the blade tip 11 of the blade 2 is exposed, and the peeling blade is relatively displaced in the A1 direction with respect to the support frame body 4 from the working position P1. The peeling blade storage position or the peeling blade storage position P2 (FIGS. 3 and 4 (a) to (c) in FIG. 3 and FIG. 4) that covers the two blade tips 11 and relative to the support frame body 4 from the working position P1 in the A2 direction. A peeling blade replacement position or a replacement blade position P3 ((a) to (c) in FIGS. 5 and 6) that is displaced and exposes substantially the entire peeling blade 2 is taken.

  With respect to the scraper 1, the state of FIGS. 1 and 2 in which the support frame auxiliary body 5 is actually at the work position P1 where the support frame main body 4 overlaps corresponds to the work state S1, and the support frame 3 and 4 in the peeling blade storage position or the peeling blade storage position P2 where the auxiliary body 5 covers the cutting edge 11 of the peeling blade 2 is the peeling blade storage state or the peeling blade storage. The state shown in FIGS. 5 and 6 in which the support frame auxiliary body 5 corresponds to the state S2 and is in the peeling blade replacement position P3 where the entire peeling blade 2 is exposed is the peeling blade replacement state S3. Applicable.

  In this specification, regarding the scraper 1, the working state S1 is also referred to as a working position S1, the peeling blade storage state or the peeling blade storage state S2 is also referred to as the peeling blade storage position or the peeling blade storage position, and the peeling blade replacement state S3 is defined as It is also called peeling blade replacement position S3.

  As shown in FIGS. 1 and 2 (a) to (c), when the scraper 1 is in the working state (position) S1, the supporting frame auxiliary body 5 is in the working position P1, and the peeling blade 2 is in the supporting frame. The front edge 23a of the main body 4 and the front edge 53a of the support frame auxiliary body 5 protrude from the front edge A1 to the same extent, and the peeling work can be performed by the cutting edge portion 11 of the peeling blade 2. The front edge 23a of the support frame main body 4 and the front edge 53a of the support frame auxiliary body 5 are located at different positions in the A direction instead of being actually at the same position in the A direction. The protruding length of the peeling blade 2 with respect to the body 5 toward the front A1 may be different.

  In this state S1, the peeling blade 2 is engaged with the protrusions 36bA, 36a, 36bB at the holes 13A, 12, 13B, and is engaged with the recess 37a of the protrusions 37bA, 37a, 37bB at the rear edge. Thus, between the support frame main body 4 and the support frame auxiliary body 5 that are engaged with each other by the engaging portions 25 and 55 and the inner surfaces 22 and 52 are actually in close contact with each other, that is, between the bottom surface of the recess 38a and the inner surface 52. It is held without play. Further, in this state S1, the engaging protrusions 45A and 45B that are fitted to the engaging protrusion holding parts 46A and 46B at one end side and are spring-loaded are the groove parts 70A of the support frame auxiliary body 5 at the other end side. , 70B is just fitted into the recesses 71A, 71B in the center. Further, in this state S1, the central opening 30 of the support frame main body 4 and the central opening 60 of the support frame auxiliary body 5 just overlap, and the rear edge 23b of the support frame main body 4 and the rear of the support frame auxiliary body 5 are overlapped. The edge 53b just overlaps the thickness direction E. Accordingly, the gripping portion 32 of the support frame main body 4 and the gripping portion 62 of the support frame auxiliary body 5 just overlap. Therefore, as shown in FIG. 9, the scraping operation can be performed by the scraper 1 to remove the foreign matter GM adhering to the surface GS of the glass G by grasping the entire gripping portions 32, 62 just overlapped with the palm.

  When the peeling blade 2 of the scraper 1 in the working state (position) S1 shown in FIGS. 1 and 2 (a) to (c) is stored (accommodated), as shown in FIG. The force receiving recess 58 and the roughened portion of the support frame auxiliary body 5 are held in a state in which the edge 30b on the opening 30 side of the grip portion 32 of the support frame body 4 is supported by the palm (finger side on the palm side). A force in the A1 direction is applied to 59 with the palm of the thumb. Thereby, the support frame auxiliary body 5 is displaced in the A1 direction with respect to the support frame main body 4. As shown in FIG. 11, the A1 direction displacement is such that the inclined edge 77 in the vicinity of the front edge 53a of the support frame auxiliary body 5 completely covers the blade edge 11 of the peeling blade 2 (the front edge 53a is the blade edge 11). Until the peeling blade auxiliary body 5 overlaps the peeling blade 2).

  Thereby, as shown to (a)-(c) of FIG.3 and FIG.4, the support frame auxiliary body 5 reaches the peeling blade accommodation (accommodation) position P2, and the scraper 1 is in the peeling blade accommodation (accommodation) state ( Position) S2.

  In this peeling blade stored (accommodated) state (position) S2 of the scraper 1, the inclined edge 77 in the vicinity of the front edge 53a of the support frame auxiliary body 5 completely covers the cutting edge 11 of the peeling blade 2, and the support frame body 4 The locking projection 43 of the leaf spring-like locking portion 40 gets over the engagement projection 67 of the engagement portion 64 of the support frame auxiliary body 5 in the A2 direction and returns to the D1 direction (that is, the locking projection). When 43 is in contact with the engaging protrusion 67, the locking protrusion 43 is pushed in the D2 direction by the engaging protrusion 67 and swings in the D2 direction. When the pressure area is exceeded, the elastic force of the leaf spring-like locking portion 40 itself returns to the D1 direction). In this state, since the end surface 43a of the locking projection 43 hits the outer surface 67a of the engagement projection 67 of the engagement portion 64, displacement of the support frame auxiliary body 5 in the A2 direction with respect to the support frame main body 4 is prohibited. That is, once the blade edge 11 of the peeling blade 2 is completely covered by the inclined edge 77 in the vicinity of the front edge 53a of the support frame auxiliary body 5, once the peeling blade is stored (accommodated) (position) S2, a normal unexpected external force is applied. Depending on the situation, the support frame auxiliary body 5 is not likely to be returned in the A2 direction (in practice), and the separation blade 2 is not likely to be exposed again (in practice). In other words, in this example, the position or state where the end surface 43a of the locking projection 43 abuts against the outer surface 67a of the engagement projection 67 of the engagement portion 64 is the peeling blade storage (accommodation) position (state). Corresponds to S2.

  In this state S2, the engagement portions 55A and 55B of the support frame auxiliary body 5 are located in the vicinity of the end portions in the A1 direction of the engagement recesses 25A and 25B of the support frame body 4, and are spring loaded engagement protrusions. The portions 45A and 45B are located in the vicinity of the ends in the A2 direction of the grooves 70A and 70B of the support frame auxiliary body 5. When the scraper 1 is in the peeling blade storage (accommodation) position (state) S2, the openings 30 and 60 are partially formed as is apparent from FIGS. 3 and 4, (a) and (c), FIG. The hand (fingertip) can be inserted into the opening formed by the openings 30 and 60 partially overlapping each other.

  For example, the scraper 1 in the peeling blade storage state S2 can be accidentally damaged by the blade edge portion 11 even if it is in a bag or pocket, for example, a plate suspended by a rope. Even when riding on a basket or the like to remove dirt on window glass or other foreign objects at high places, the scraper 1 is actually found by simply searching without visually recognizing the scraper 1. It can be used after being held by hand and set in a desired position (set to a desired state).

  In addition, as shown in FIG. 12, the scraper 1 once set in the peeling blade storage state S2 has a portion other than the thumb in the openings 30 and 60 in a state where the rear edge 23b of the support frame body 4 is supported by the palm. The edge 60b of the opening 60 of the supporting frame auxiliary body 5 displaced in the A1 direction with respect to the opening 30 of the supporting frame main body 4 is passed through the plurality of fingers (in a direction to release the supporting frame main body 4 in the thickness direction). When it is grasped as if it is pushed up on the palm side, the engagement between the end surface 43a of the locking projection 43 and the outer surface 67a of the engagement projection 67 of the engagement portion 64 can be easily released. Then, the support frame auxiliary body 5 is displaced in the A2 direction with respect to the support frame main body 4, and can be set to the work state S1 again. Apart from the case where such a delicate disengagement force is applied, in other cases, the locking projection 43 exposed in the recess 58 of the support frame auxiliary body 5 faces downward (in FIG. It is only necessary to displace the support frame auxiliary body 5 in the A2 direction while applying a force in the direction of separating the inner surface 22 of the main body 4 from the inner surface 52 of the support frame auxiliary body 5.

  When replacing the peeling blade 2 of the scraper 1 in the working state (position) S1 shown in FIGS. 1 and 2 (a) to 2 (c), as shown in FIG. The gripping portions 32, 62 are pinched by holding the gripping portions 32, 62 so that a force in the A1 direction is applied to 23b with a finger or the like, and a force in the A2 direction is applied to the rear edge 60b of the opening 60 of the support frame auxiliary body 5 with a thumb or the like. Apply power to. Thereby, the support frame auxiliary body 5 is displaced in the A2 direction with respect to the support frame main body 4. This displacement in the A2 direction is continued until substantially the entire peeling blade 2 engaged mainly with the support frame main body 4 is exposed, as shown in FIGS. 13, 5, and 6 (a) to (c). .

  Thereby, as shown to (a)-(c) of FIG.5 and FIG.6, the support frame auxiliary body 5 reaches the peeling blade replacement position P3, and the scraper 1 will be in the peeling blade replacement state (position) S3.

  In the peeling blade replacement state (position) S3 of the scraper 1, the front edge 53a of the support frame auxiliary body 5 exposes the entire plate body 10 of the peeling blade 2 in general.

  In this state S3, the spring-loaded engagement protrusions 45A and 45B are just fitted into the recesses 72A and 72B of the grooves 70A and 70B of the support frame auxiliary body 5 to give a click feeling to the predetermined positions S3 and P3. Make sense. The engagement portions 55A and 55B of the support frame auxiliary body 5 are positioned in the vicinity of the end portions in the A2 direction of the engagement recesses 25A and 25B of the support frame main body 4, and the rear edge portion 23b of the support frame main body 4 is a force receiving recess. In fact, it is just flush with the bottom wall 58a of 58.

  At the peeling blade replacement position S3, the holes 13A, 12 and 13B are engaged with the engaging protrusions 36bA, 36a and 36bB, and the rear edge 14 is engaged with the engaging protrusions 37bA, 37a and 37bB. Although being held lightly, the peeling blade 2 can be easily disengaged and removed by grasping the vicinity of the blade edge portion 11 and replaced with a new peeling blade 2. The attachment of the new peeling blade 2 can be easily performed by mounting at a predetermined position so as to engage the engaging portion. When the scraper 1 is in the peeling blade replacement position (state) S3, the openings 30 and 60 are partially overlapped, as is apparent from FIGS. 5 and 6 (a) and (c), FIG. Thus, a hand (fingertip) can be inserted into the opening formed by the partially overlapping openings 30 and 60.

  After the replacement of the peeling blade 2 is completed, for example, as shown in FIG. 12, the support frame auxiliary body 5 is supported by the support frame auxiliary body 5 by grasping the grip portions 63 and 32 through fingers other than the thumb through the openings 60 and 30. The main body 4 is displaced in the A1 direction and set to the work position P1, the scraper 1 is set to the work state S1, and the work can be resumed. Therefore, workability is good.

  Even when the peeling blade 2 is replaced as described above, the operation of the scraper 1 itself can actually be performed with one hand. Therefore, for example, even when riding on a plate or a basket suspended by a rope to remove dirt on windowpanes and other foreign objects at high places, the peeling blade 2 can be easily replaced. obtain.

  In the scraper 1, regardless of the state of the scraper 1, the edges of the two openings 30, 60 or the grips 32, 62 are grasped (gripped) by the hand inserted into the openings 30, 60. As a result, the openings 30 and 60 are aligned and reach the work positions P1 and S1, so that the work positions P1 and S1 become reference positions. As a result, when the scraper 1 is moved to one side with respect to the work positions P1 and S1, it is set to the peeling blade storage position P2 and S2 and when moved to the other side, the peeling blade replacement positions P3 and S3. Therefore, there is little possibility that the peeling blade replacement position P3, S3 is erroneously set and the peeling blade 2 is easily dropped off.

DESCRIPTION OF SYMBOLS 1 Scraper 2 Peeling blade 3 Peeling blade holder 4 Support frame main body 5 Support frame auxiliary | assistant body 10 Thin plate 11 Blade edge part 12 Long hole 13,13A, 13B Long hole 14 Rear edge 20 Plate-shaped body 21 Outer surface 21a Inclined surface 22 Inner surface 23a Long side (front edge)
23b Long side (rear edge)
23c, 23d Short side portion 24, 24A, 24B Slope side portion 25, 25A, 25B Guide engaging portion 26, 26A, 26B Side edge 27, 27A, 27B Recessed portion 27a, 27aA, 27aB Bottom wall portion (back wall portion)
27b, 27bA, 27bB Edges 27c, 27cA, 27cB Recess 30 Opening 30a Long side (front edge)
30b Long side (rear edge)
30c, 30d Short side portion 31 Arc-shaped portion 32 Gripping portion 35 Peeling blade engaging portion 36a Fitting protrusions 36b, 36bA, 36bB Fitting small protrusions 37, 37a, 37b, 37bA, 37bB Locking protrusion 37c Stop recess 38 Site 38a Recess 40 Plate spring-like locking portion 40a Front edge 40b, 40c Side edge 40d Rear edge (connection portion)
41 Body region 42 U-shaped slits 42a, 42b, 42c U-shaped slit portion 43 Locking projection (part)
43a Front edge (end face, locking part)
43b Plane 45, 45A, 45B (spring loaded) engagement projection 46, 46A, 46B engagement projection retainer (engagement projection holder)
47 Through-hole 50 Plate-like body 51 Outer surface 52 Inner surface 53a Long side part (front edge)
53b Long side (rear edge)
53c, 53d Short side portions 54, 54A, 54B Slope side portions 55, 55A, 55B Guide engaged portions (guide engaging portions)
56a, 56aA, 56aB Inwardly rising portions 56b, 56bA, 56bB Engaging protrusions 56c, 56cA, 56cB Recessed portions 56d, 56dA, 56dB U-shaped surfaces 57a, 57b, 57bA, 57bB Recessed portions 58 Force receiving recessed portion 58a Bottom wall portion 59 Roughening part 59a Groove part 60 Opening part 60a Long side part (front edge)
60b Long side (rear edge)
60c, 60d Short side portion 61 Arc-shaped portion 62 Grip portion 64 Engagement portion 65 Front and rear direction extending recess 65a Bottom surface 66 Recess 66a Bottom surface 67 Engagement projection portion 67a Rear edge (outer surface)
70, 70A, 70B Front-rear direction extending groove portions 71, 71A, 72B Recess portions 72, 72A, 72B Recess portions 74 Slit-like recess portions 75 Hole A Front-rear direction A1, A2 direction B Width direction B1, B2 direction D1, D2 Swing direction E Thickness Direction E1 direction (inward of supporting frame auxiliary body)
G Glass GS Surface GM Foreign matter H Width of grip portion 32 (length in the front-rear direction)
P1 Work position P2 Peeling blade storage position (peeling blade storage position)
P3 Peeling blade replacement position S1 Scraper working condition (working position)
S2 Scraper peeling blade storage (accommodation) state (peeling blade storage (accommodation) position)
S3 Peeling blade replacement state (peeling blade replacement position)

Claims (10)

A plate-like support frame body;
A peeling blade removably attached to the support frame body in a state in which the blade edge portion protrudes from the front edge of the support frame body;
A plate-like support frame auxiliary body that forms a peeling blade holder by sandwiching the peeling blade in cooperation with the support frame main body, the working position at which the cutting edge of the peeling blade protrudes from the front edge, and the working position So that the part including the leading edge is displaced so as to protrude further to the front edge side and covers the cutting edge of the peeling blade, and the most part of the peeling blade is exposed to allow removal of the peeling blade. A scraper that is slidably engaged with the support frame main body between the peeling blade replacement position that is retracted from the working position. Each of the support frame main body and the support frame auxiliary body is provided with an opening that allows the insertion of the hand, and the support frame auxiliary body is set to the working position when the edges of the two openings are gripped by the hand inserted into the opening. The scraper according to claim 1. The scraper according to claim 1 or 2, wherein the peeling blade has a plurality of holes, and each of the holes is engaged with a corresponding small protrusion of the support frame main body. The rear edge of the peeling blade is detachably engaged with the front edge of the supporting frame auxiliary body when the supporting frame auxiliary body is retracted with respect to the supporting frame main body so as to take the peeling blade replacement position. Item 4. A scraper according to Item 3. 2. A locking means for restricting movement of the support frame auxiliary body from the peeling blade storage position to another position where the peeling blade is exposed when the support frame auxiliary body is set at the peeling blade storage position. 5. The scraper according to any one of items 4 to 4. When the support frame auxiliary body takes the respective positions of the working position and the peeling blade replacement position, the spring is positioned so as to be positioned more stably than the intermediate position between the peeling blade storage position, the work position and the peeling blade replacement position at each position. The scraper according to claim 5, wherein the loaded engagement piece is configured to fit into the corresponding hole. The scraper according to any one of claims 1 to 6, wherein the support frame auxiliary body includes a force receiving portion that receives a displacement force that displaces the support frame auxiliary body from the work position to the peeling blade storage position. The scraper according to any one of claims 1 to 7, wherein the support frame auxiliary body includes another force receiving portion that receives a displacement force that displaces the support frame auxiliary body from the working position to the peeling blade replacement position. The support frame main body includes a pair of guide engaging portions at a position behind the front edge among both ends in the width direction, and a pair of engaged portions in which the support frame auxiliary body engages with the guide engaging portions at both ends in the width direction. A scraper according to any one of claims 1 to 8. The scraper according to claim 9, wherein a locking portion that defines a movable range of the engaged portion in the front-rear direction is formed at both ends in the front-rear direction of the engaging portion.

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