Countertop scraper

Abstract

To provide a top plate scraper capable of performing stable scraping processing, when it is so constituted that a cutting amount of a straight part and a corner part at an upper edge of a top plate is fixed without depending on an operator's technical level, while avoiding such situation that a blade is pushed in at the upper edge of the top plate.SOLUTION: A top plate scraper 1 for adjusting a finished state by scraping an upper edge of a top plate comprises: a horizontal member 2 whose inside face 2b comes into contact with a top face of the top plate; a vertical member 3 whose inside face 3b comes into contact with a side face of the top plate, that is suspended from one edge side of the horizontal member 2; a blade 4 for scraping the upper edge of the top plate, that is provided in a region where the inside face 2b and the inside face 3b intersect with each other; bearings 14a, 14b attached to the inside face 3b on front and rear sides of the blade 4 in a freely rotational manner so as to roll on the side face; and a guide member 20 coming into contact with the side face, that is formed inward from the inside face 3b of the vertical member 3 in a protruding manner between the front and rear bearings 14a, 14b.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a baking sheet scraper for scraping the upper edge of a baking sheet. [Background technology]

[0002] Generally, flat materials such as tabletops are cut from a base material and formed into a rectangular shape (rectangle, square, etc.). The upper edge of the flat material, where the top surface (horizontal surface) transitions to the side surface (vertical surface), may have sharp corners or burrs. These sharp corners and burrs can cause snags, so the upper edge is chamfered to smooth it out. At this time, a scraper (plane) is used to scrape the upper edge, creating a rounded section on the upper edge. Chamfering of the upper edge is carried out, for example, as a finishing process before the product is made into a final product, or before installation work such as attaching to a facility. When chamfering the lower edge, the work is also scraped in the same way, with the work turned upside down.

[0003] BACKGROUND ART A scraper (plane) for chamfering a flat plate material is disclosed in Patent Document 1, for example. Patent Document 1 aims to provide an easy-to-use plane for chamfering gypsum boards that can cleanly cut paper pasted on the front and back of the gypsum board without reducing the sharpness of the cutter blade.

[0004] Specifically, a guide groove is formed in the longitudinal direction on the underside of the plane head body, an inclined surface on which the plane head is placed, a clamping fixture for clamping the plane head to the inclined surface, and a through hole that passes through the guide groove on the underside of the plane head body are provided, and the plane head is clamped with the clamping fixture with the cutting edge of the plane head protruding into the guide groove through the through hole, and the guide groove is abutted against the edge of the gypsum board to perform chamfering, and the angle of the inclined surface on which the plane head is clamped is set to be in the range of 10 to 15 degrees with respect to the horizontal plane of the underside of the plane head body. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2017-185755 Summary of the Invention [Problem to be solved by the invention]

[0006] Now, resin (e.g., ABS resin) edging is attached to the sides of tabletops used in furniture, etc., to protect them from scratches and improve their appearance. To make these into final products, a scraper is used to perform chamfering, removing any fine burrs that may exist on the edging (the upper edge of the tabletop) (see Figure 8, for example). However, there are differences in the skill levels of workers who chamfer the tabletop. For example, a skilled worker can, with experience, scrape off a certain amount of the upper edge of the edge material from the straight sections to the corners of the side, but if the worker's skill does not reach a certain level, they may end up pushing the blade into the edge material, especially in the corners of the side, which will cause problems in scraping the upper edge material.

[0007] In other words, the amount of edge material removed is constant along the straight lines of the top edge, but at the corners, the scraping occurs as the blade is pushed in, resulting in a greater amount of edge material being removed at the corners of the top edge. When the amount of removal differs depending on the part of the tabletop, minute irregularities are created, which detracts from the appearance of the tabletop (especially the appearance of the top edge). For example, when using the plane disclosed in Patent Document 1, there is a high possibility that the above problem (the worker pushing the blade into the corner of the worktop) will occur, and depending on the worker's skill level, it may not be possible to perform stable scraping processing.

[0008] Therefore, in consideration of the above problems, the present invention aims to provide a top plate scraper that can perform stable scraping processing by avoiding situations where the blade is pushed into the upper edge of the top plate and by configuring it so that the amount of cutting of the straight and corner parts of the upper edge of the top plate is constant regardless of the skill level of the worker. [Means for solving the problem]

[0009] In order to achieve the above object, the present invention provides the following technical means. The top plate scraper of the present invention is a top plate scraper that adjusts the finishing condition of the upper edge by sliding longitudinally along the upper edge, which is the part where the top surface transitions from the top face to the side face of the top plate, to scrape the upper edge, and is characterized by having: a horizontal member whose inner surface contacts the top surface of the top plate; a vertical member that is arranged hanging down from one edge side of the horizontal member and whose inner surface contacts the side face of the top plate; a blade that is provided at the part where the inner surfaces of the horizontal member and the vertical member intersect and scrapes the upper edge of the top plate; bearings that are rotatable on the inner surface of the vertical member so as to roll on the side face of the top plate and are attached to the front and rear of the blade; and a guide member that is formed in a protruding shape that juts inward from the inner surface of the vertical member between the pair of front and rear bearings and that contacts the side face of the top plate.

[0010] Preferably, the guide member and the blade are arranged side by side in the sliding direction on the inner surface of the vertical member, and the guide member and the bearing are arranged side by side in the sliding direction and have the same amount of inward protrusion from the inner surface of the vertical member. Preferably, when the guide member reaches a corner of the side surface of the top plate, it is supported at two points by one of the pair of front and rear bearings, and the blade contacts the corner at a predetermined distance.

[0011] Preferably, the inner surface of the horizontal member that contacts the top surface of the tabletop has a plurality of convex support portions that contact the top surface of the tabletop, and a gap is formed between the recess adjacent to the support portion and the top surface of the tabletop. Preferably, the inner surface of the vertical member that contacts the side of the tabletop has a plurality of convex edge material contact portions, each of which includes at least the guide member and the bearing, and the edge material contact portions contact the side of the tabletop. [Effects of the Invention]

[0012] According to the present invention, it is possible to avoid situations where the blade is pushed into the upper edge of the tabletop, and to perform stable scraping processing by configuring the cutting amount of the straight and corner portions of the upper edge of the tabletop to be constant regardless of the skill level of the worker. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a top perspective view schematically illustrating an outline of a top plate scraper according to the present invention. FIG. [Figure 2] FIG. 1 is a bottom perspective view schematically illustrating an outline of a top plate scraper according to the present invention. [Figure 3] 1 is a four-sided view schematically illustrating an outline of a top plate scraper according to the present invention. FIG. [Figure 4] FIG. 1 is a right side view schematically illustrating an outline of a top plate scraper according to the present invention. [Figure 5] FIG. 1 is a bottom view schematically illustrating an outline of a top plate scraper according to the present invention. [Figure 6] 4 is an enlarged front side view of the area around the blade of the top plate scraper, and is an enlarged view of part A in FIG. 3. FIG. [Figure 7] 1 is an exploded view showing a schematic outline of a top plate scraper according to the present invention. FIG. [Figure 8] 1 is a diagram showing how the top plate scraper of the present invention is used. DETAILED DESCRIPTION OF THE INVENTION

[0014] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a top plate scraper according to the present invention will be described below with reference to the drawings. The embodiment described below is an example of a specific embodiment of the present invention, and the configuration of the present invention is not limited to this specific example. In this embodiment, a left-handed baking sheet scraper 1 will be described as an example. The baking sheet scraper 1 of the present invention can also be configured for right-handed use by mirror-inverting the configuration described below.

[0015] In the following description, the directions shown in the drawings will be those when describing the countertop scraper 1. These directions will be the same as those seen from the perspective of a worker U (user) using the countertop scraper 1. These directions will be indicated by arrows in the drawings as appropriate. First, the top plate 51 to be scraped will be briefly described.

[0016] Tabletop 51 is used for furniture (for example, a table), and is made up of top surface 52 (upper surface, horizontal plane) and side surfaces 53 (vertical surfaces). Side surfaces 53 are made up of straight portions 53a and angular portions 53b (corner portions). Tabletop 51 also has a main body 54 cut out from a base material, and an edge material 55 attached to side surfaces 53 of main body 54. The main body 54 is cut out in a rectangular shape from a base material, and the corners 53b (corners) of the rectangle are not sharp but are slightly rounded (for example, with a chamfering radius of 2 mm). The main body 54 is a flat plate material with a predetermined area and thickness. Most of the main body 54 is made of wood.

[0017] Furthermore, the main body 54 may be painted or decorated with a sheet material attached to the top surface 52 side (upper surface) to add design features. Furthermore, the main body 54 may be sprayed with a coating agent such as varnish to make the most of the wood material. The rim material 55 is attached so as to go around the side surface 53 and the corner portion 53b of the main body portion 54. The rim material 55 protects the side surface 53 and the corner portion 53b. Most of the rim material 55 is made of soft resin (for example, ABS resin, etc.).

[0018] 1 to 8 show an outline of a top plate scraper 1 according to the present invention. As shown in Figures 1 to 8, the tabletop scraper 1 of the present invention is a jig for finishing the R portion 56 (upper edge) of a product (tabletop 51) having an edge material 55 (e.g., made of ABS resin) attached to its side surface 53, and the tabletop scraper 1 is pulled in from the outer surface of the product (tabletop 51) to finish the R portion 56.

[0019] When chamfering the lower edge of the top plate 51, the top plate 51 is turned upside down with the bottom surface facing up (top surface 52 facing down) and scraping is performed in the same manner. That is, the top plate scraper 1 according to the present invention slides longitudinally (from front to rear) along the upper edge 56 (the upper part (R portion) of the edging material 55) which is the part where the top surface 52 of the top plate 51 transitions to the side surface 53, thereby scraping the upper edge 56 and adjusting the finish of the upper edge 56. The top plate scraper 1 has a horizontal member 2 which contacts the top surface 52 of the top plate 51, and a vertical member 3 which contacts the side surface 53 of the top plate 51.

[0020] As shown in Figures 1 to 7, the horizontal member 2 is a rectangular plate piece having a width approximately equal to the width of the back of the hand H, a length in the longitudinal direction (front-to-back direction) longer than the width, and a predetermined thickness. The outer surface 2a (top surface) of the horizontal member 2 is formed with irregularities that fit the palm of the hand H of the user U, as it comes into contact with (is gripped by) the outer surface 2a. The irregularities on the outer surface 2a will be described in detail later.

[0021] The inner surface 2b (lower surface) of the horizontal member 2 is in contact with the top surface 52 of the top plate 51, and is therefore an approximately horizontal surface. However, a plurality of minute irregularities are formed on the inner surface 2b. Since there may be minute irregularities on the top surface 52 of the top plate 51, the irregularities formed on the inner surface 2b correspond to the irregularities on the top surface 52 and maintain horizontality during scraping. The irregularities on the inner surface 2b will be described in detail later.

[0022] The vertical member 3 is disposed in a hanging manner from one edge side (the left edge side in this embodiment) of the horizontal member 2. The vertical member 3 is a rectangular plate piece whose top-to-bottom height is greater than the height of the side surface 53 of the tabletop 51 (the thickness of the tabletop 51), whose longitudinal length (front-to-back direction) is approximately the same as that of the horizontal member 2, and which has a predetermined thickness. The outer surface 3a (left surface) of the vertical member 3 is formed with irregularities that fit the palm of the hand H of the user U, as it comes into contact with (is grasped by) the outer surface 3a. The irregularities on the outer surface 3a will be described in detail later.

[0023] The inner surface 3b (right surface) of the vertical member 3 is in contact with the side surface 53 of the top plate 51, and is therefore an approximately horizontal surface. However, multiple protrusions are formed on the inner surface 3b. These protrusions formed on the inner surface 3b are rim material contact portions 23, and are intended to provide point contact with the side surface 53 (rim material 55) of the top plate 51 so as not to scratch the side surface 53. The protrusions (rim material contact portions 23) on the inner surface 2b will be described in detail later.

[0024] That is, the top plate scraper 1 of this embodiment has a horizontal member 2 and a vertical member 3 integrally molded from hard resin or the like so that it has a substantially L-shape when viewed from the front. As shown in FIGS. 2 to 6, the top plate scraper 1 of the present invention is The cutting edge 4 is provided at the location where the cutting edge 2b and the inner surface 3b of the vertical member 3 intersect, and has a blade 4 for scraping the upper part of the rim material 55 (the upper edge 56 (R portion) of the top plate 51).

[0025] The blade 4 is made up of a cutting edge 4a that scrapes off minute burrs and the like on the upper part of the rim material 55, and a main body 4b equipped with the cutting edge 4a. The blade 4 is arranged inside the L-shape where the horizontal member 2 and the vertical member 3 are combined, and midway in the front-to-back direction (longitudinal direction). As shown in FIG. 6, the cutting edge 4a is rounded (fan-shaped) so as to fit along the upper edge 56 of the top plate 51, and the chamfering radius is, for example, 2 mm. The right end of the cutting edge 4a is arranged so as to be flush with the inner surface 2b of the horizontal member 2. The lower end of the cutting edge 4a is arranged so as to be flush with the protruding portion of the bearing 14 (the portion that comes into contact with the rim material 55). As a result, the cutting edge 4a is arranged so as to fit along the upper edge 56 of the top plate 51. Burrs and the like on the upper part of the rim material 55 are scraped off by this rounded cutting edge 4a.

[0026] The blade 4 wears down and shifts position with use, so the amount of inward protrusion and its position can be adjusted. The horizontal member 2 has an opening 5 on the opposite side of the blade 4 (outside the top plate scraper 1) to discharge shavings K to the outside. As shown in Figures 2 to 7, the blade 4 is fixed to the top plate scraper 1 by a blade fixing portion 6. The blade fixing portion 6 is a fixing screw. The blade 4 is fixed to the top plate scraper 1 by inserting the fixing screw 6 into the through hole 4c of the main body 4b using a screwdriver or the like through the through hole 7 formed in the rear part of the top plate scraper 1.

[0027] The blade 4 is held from diagonally below and to the left by the first position adjustment part 8. The first position adjustment part 8 has a screw 8a that holds the blade 4, a spring 8b that is arranged behind the screw 8a, and a screw 8c that covers the spring 8b. The first position adjustment part 8 holds the blade 4 with the reaction force of the spring 8b. A screw 8a is inserted into a through-hole 9 formed in the top plate scraper 1 from the diagonally lower left to the diagonally upper right, then a spring 8b is inserted, and a screw 8c is inserted using a screwdriver or the like to hold the blade 4.

[0028] The blade 4 is held from diagonally above and to the right by the second position adjustment unit 10. The second position adjustment unit 10 is provided in a position opposite the first position adjustment unit 8 and serves as an adjustment screw for adjusting the blade 4. The adjustment screw 10 is provided with a knob, allowing for easy adjustment. The second position adjustment unit 10 adjusts and holds the blade 4 by tightening and loosening the adjustment screw. An adjustment screw 10 is inserted into a through-hole 11 formed in the top plate scraper 1 from the upper right to the lower left, and the blade 4 is adjusted and held by tightening or loosening the adjustment screw 10. The first position adjustment unit 8 and the second position adjustment unit 10 guide the blade 4 diagonally downward to the right.

[0029] The blade 4 is held from diagonally above and to the left by a protrusion adjustment portion 12. The protrusion adjustment portion 12 is an adjustment screw that adjusts the protrusion amount of the blade 4. The adjustment screw 12 is provided with a knob, allowing for easy adjustment. The protrusion adjustment portion 12 adjusts and maintains the protrusion amount of the blade 4 (blade 4a) by tightening or loosening the adjustment screw. An adjustment screw 12 is inserted into a through hole 13 formed in the top plate scraper 1 from the upper left to the lower right, and the protrusion amount of the blade 4 is adjusted and maintained by tightening or loosening the adjustment screw 12.

[0030] When adjusting the protrusion amount of the blade 4 (blade 4a), etc., the top plate scraper 1 is viewed from the front or rear, and the blade 4 (blade 4a) is adjusted by looking through the adjustment window 12a located on the inside of the approximately L-shape (the area where the inner surface 2b and the inner surface 3b change over). The top plate scraper 1 of the present invention has a rotatable bearing 14 attached to the inner surface 3b of the vertical member 3. The bearing 14 rolls on the side surface 53 of the top plate 51 in the front-to-rear direction (sliding direction).

[0031] The bearings 14 are arranged side by side in the front-rear direction (the sliding direction). The bearings 14a and 14b simultaneously contact the edge material 55 of the side surface 53 of the top plate 51 in parallel (along the front-rear direction of sliding), so that the amount of inward protrusion from the inner surface 3b of the vertical member 3 is the same. That is correct. The front bearing 14a is rotatably attached to the front side of the blade 4, slightly forward of the inner surface 3b of the vertical member 3. The bearing 14a is inserted into a hole 15 that is provided slightly forward of the inner surface 3b of the vertical member 3 and that is open on the right side. The vertical member 3 also has a through hole 16 whose axis faces in the vertical direction.

[0032] This through hole 16 communicates with the hole portion 15. The bearing 14a is inserted into the hole portion 15, and the shaft portion 17 is inserted through the through hole 16, so that the bearing 14a is supported via the shaft portion 17 so as to be rotatable. The rear bearing 14b is rotatably attached to the rear side of the blade 4, midway in the front-to-rear direction of the inner surface 3b of the vertical member 3. The bearing 14b is inserted into a hole 18 that is provided midway in the front-to-rear direction of the inner surface 3b of the vertical member 3 and that is open on the right side. The vertical member 3 also has a through-hole 19 whose axis faces in the up-down direction.

[0033] This through hole 19 communicates with the hole portion 18. By inserting the bearing 14b into the hole portion 18 and the shaft portion 17 through the through hole 19, the bearing 14b is supported via the shaft portion 17 so as to be rotatable. As shown in FIGS. 2 to 5, the top plate scraper 1 of the present invention has a guide member 20 that comes into contact with the side surface 53 of the top plate 51 (straight portion 53a, corner portion 53b).

[0034] Now, in the edge material 55 of the straight section 53a, the vertical member 3 is supported by the front bearing 14a and the rear bearing 14b, and in order to prevent the blade 4 from digging into the edge material 55 of the corner section 53b when the front bearing 14a comes out and detaches, a guide member 20 (center guide) is provided, and by giving it a width (distance) greater than the R section 56 so as not to follow the R section 56 at the end, it is possible to finish even the final product (top plate 51) with the R section 56.

[0035] That is, the guide member 20 (center guide) is provided on the inner side surface 3b side of the vertical member 3 and between the pair of front and rear bearings 14a, 14b, and contacts the side surface 53 of the top plate 51. The guide member 20 is formed in a protruding shape so as to jut inward from the inner surface 3b of the vertical member 3. The guide member 20 is a trapezoidal member formed so as to jut inward from the inner surface 3b. A flat surface 20a that is larger than the contact surface of the bearing 14 that comes into contact with the rim material 55 is provided on the inward-facing side of the guide member 20. The flat surface 20a is arranged along the front-rear direction (the sliding direction) so as to come into contact with the rim material 55.

[0036] The guide member 20 is arranged on the inner surface 3b of the vertical member 3 so as to be aligned in the vertical direction (up-down direction) with the blade 4 (cutting edge 4a). That is, on the inner surface 3b of the vertical member 3, the blade 4 (cutting edge 4a) is arranged on the upper side, and the guide member 20 (flat surface 20a) is arranged on the lower side. The guide member 20 is arranged alongside the bearings 14a and 14b in the front-to-rear direction (longitudinal direction) along which the guide member 20 slides. The amount of inward protrusion of the guide member 20 from the inner surface 3b of the vertical member 3 is the same as the amount of protrusion of the bearings 14a and 14b. The reason why the protrusion amounts are the same is because the guide member 20 and the bearings 14a and 14b simultaneously come into contact with the edge material 55 of the side surface 53 (straight portion 53a) of the top plate 51 in parallel (along the sliding direction).

[0037] When the top plate scraper 1 is pulled backward, the bearing 14b is released from contact with the edge material 55, and the guide member 20 reaches the corner 53b (corner portion) of the side surface 53 of the top plate 51, it is supported at two points with one of the pair of front and rear bearings 14a (front side), and the blade 4 comes into contact with the edge material 55 of the corner portion 53b of the top plate 51 at a predetermined distance. In this way, the guide member 20 can be supported at two points with the bearing 14a even if the bearing 14b is released from contact with the rim material 55. Therefore, it is preferable that the guide member 20 be provided on the side closer to the bearing 14a.

[0038] When the top plate scraper 1 is pulled from the front to the rear at the top edge 56 (the upper part of the edging material 55) of the top plate 51 to scrape the upper part of the edging material 55, the straight line of the side surface 53 of the top plate 51 When the bearing 14 moves from the portion 53a to the rear corner portion 53b, the rear bearing 14b comes off the side surface 53 and is released from contact. At this time, the guide member 20 continues to contact the edge material 55 of the corner portion 53b, and support with the front bearing 14a becomes a stable two-point support, preventing the cutting edge 4a (blade 4) from digging into the edge material 55 of the corner portion 53b, and keeping the distance between the top of the edge material 55 (upper edge 56) and the cutting edge 4a constant.

[0039] In other words, the cutting edge 4a (blade 4) can contact the upper part of the edge material 55 at the corner portion 53b at a predetermined interval, and the amount of cutting (scraping) by the cutting edge 4a (blade 4) in the edge material 55 at the straight portion 53a and the edge material 55 at the corner portion 53b is constant. As shown in FIGS. 2 and 3, the inner surface 2b of the horizontal member 2 is provided with a plurality of convex support portions 21 and recessed portions 22 arranged alternately in the front-rear direction (longitudinal direction) of sliding.

[0040] In this embodiment, for ease of understanding, the regions showing the support portion 21 (protrusion) and the recessed portion 22 are colored in the drawings. The support portion 21 (protrusion) is colored dark gray, and the recessed portion 22 is colored light gray. By providing two support parts 21 in contact with the top surface 52 so as to more accurately fit the product surface (top surface 52), unevenness of the top surface 52 can be accommodated and no unfinished parts are left.

[0041] The support portion 21a is provided at the front end of the inner surface 2b of the horizontal member 2. The support portion 21a is a strip-like portion that is long in the left-right direction (width direction) and is a low, bulging portion that protrudes downward. A recessed portion 22a that is recessed upward is provided on the rear side of this support portion 21a. The recessed portion 22a extends from the support portion 21a to the blade 4. The support portion 21b is provided on the rear side of the recessed portion 22a, midway in the front-to-rear direction (longitudinal direction). More specifically, the support portion 21b is provided at a position corresponding to (aligned with) the blade 4 and the guide member 20 in the left-to-right direction (width direction). The support portion 21b is a long strip-shaped portion in the left-to-right direction (width direction) and a low, mountain-like bulge that protrudes downward. A recessed portion 22b that is recessed upward is provided on the rear side of the support portion 21b. The recessed portion 22b extends from the support portion 21b to the rear end of the inner surface 2b of the horizontal member 2.

[0042] Support portions 21a and 21b simultaneously contact top surface 52 of top plate 51 parallel to the sliding direction, and therefore protrude downward from inner surface 2b of horizontal member 2 by the same amount. The difference in height between support portion 21 and recess 22 is very small. This difference in height is the depth of recesses 22a and 22b, and is, for example, approximately 1 mm or less. The left-right (width) dimensions of support portion 21a and support portion 21b are approximately the same.

[0043] Therefore, the support portions 21a and 21b come into contact with the top surface 52 of the top plate 51, and a minute gap Z is formed between the recesses 22a and 22b adjacent to the support portions 21a and 21b and the top surface 52 of the top plate 51. The gap Z is, for example, approximately 1 mm or less (= the depth of the recesses 22a and 22b). In this way, by providing support portions 21a, 21b and recesses 22a, 22b on the inner surface 2b of the horizontal member 2, when the upper edge 56 (top of the edge material 55) of the top plate 51, which has fine irregularities on the top surface 52, is scraped by sliding it in the forward and backward direction, the support portions 21a, 21b and recesses 22a, 22b come into contact in accordance with the irregularities on the top surface 52, and by keeping the movement of the horizontal member 2 in the forward and backward directions (sliding direction) constant horizontally, it is possible to maintain the horizontality during scraping, and the finished condition of the upper edge 56 (top of the edge material 55) of the top plate 51 can be adjusted.

[0044] As shown in FIGS. 2 to 5, the inner surface 3b of the vertical member 3 is provided with a plurality of convex rim material contact portions 23. The rim contact portions 23 are provided at the front and rear ends of the inner surface 3b of the vertical member 3. The rim contact portions 23 are elongated in the left-right direction (width direction) and are bulging portions that protrude inward. The rim contact portions 23 come into contact with the side surfaces 53 of the top plate 51 during scraping.

[0045] The rim contact portion 23 includes at least the guide member 20 and the front and rear bearings 14a, 14b. In this embodiment, the edge material contact portion 23 is the bulging portions at the front and rear ends of the vertical member 3, the guide member 20, and the front and rear bearings 14a, 14b. If the contact portion of the edge material 55 is flat, the inner surface 3b sliding against the edge material 55 can cause scratches and shining on the edge material 55. Therefore, this portion is designed to have as little contact surface area as possible so that the edge material can be finished straight in the sliding direction.

[0046] During scraping, the rim material contact portion 23 (including the guide member 20 and the front and rear bearings 14a, 14b) comes into contact with the side surface 53 (edge ​​material 55) of the top plate 51, so that the entire inner surface 3b of the vertical member 3 is not in contact with the side surface 53 (edge ​​material 55) of the top plate 51, and only a portion of the inner surface 3b is in contact. In other words, the rim material contact portion 23 (including the guide member 20 and the front and rear bearings 14a, 14b) causes the inner surface 3b of the vertical member 3 to come into point contact with the side surface 53 (edge ​​material 55) of the top plate 51.

[0047] In this way, by providing an edge material contact portion 23 (including the guide member 20 and the front and rear bearings 14a, 14b) on the inner surface 3b of the vertical member 3, contact with the side surface 53 (edge ​​material 55) of the top plate 51 is reduced as much as possible, and scratches, etc., are prevented from being made on the side surface 53 (edge ​​material 55) of the top plate 51. As shown in Figures 1 to 7, the outer surfaces of the top plate scraper 1 (the outer surface 2a of the horizontal member 2 and the outer surface 3a of the vertical member 3) have recesses formed along the palm and fingers to make it easier for the operator U to grip.

[0048] Specifically, the first recess 24 is a portion where the thumb can be placed, and is provided on the front right side of the tabletop scraper 1. In other words, the first recess 24 is provided on the right side of the outer surface 2a (top surface) of the horizontal member 2 and in the vicinity of the second position adjustment part 10. The second recess 25 is a portion where the index finger can be placed, and is provided on the upper left front side of the top plate scraper 1. In other words, the second recess 25 is provided on the upper front side where the horizontal member 2 and the vertical member 3 switch, and in front of the protrusion amount adjustment portion 12.

[0049] The third recess 26 is a portion where the middle finger can be placed, and is provided on the lower left front side of the top plate scraper 1. In other words, the third recess 26 is provided on the lower front side of the vertical member 3 and forward of the first position adjustment part 8. The fourth recess 27 is a portion where the ring finger can be placed, and is provided on the right side of the top plate scraper 1 and midway in the front-to-rear direction (longitudinal direction). In other words, the fourth recess 27 is provided on the right side of the vertical member 3 and behind the first position adjustment portion 8.

[0050] The fifth recess 28 is a portion where the little finger can be placed, and is provided on the left rear side of the top plate scraper 1. In other words, the fifth recess 28 is provided on the right side of the vertical member 3 and behind the fourth recess 27. The right inclined portion 29 is a portion on which the right palm can be placed, and is provided on the right rear side of the tabletop scraper 1. In other words, the right inclined portion 29 is provided on the right rear side of the outer surface 2a (top surface) of the horizontal member 2, and behind the second position adjustment portion 10.

[0051] The left inclined portion 30 is a portion on which the left palm can be placed, and is provided on the rear left side of the top plate scraper 1. In other words, the left inclined portion 30 is provided on the upper rear side where the horizontal member 2 and the vertical member 3 transition, and behind the opening 10 (protrusion amount adjustment portion 12). In this way, by providing the first recess 24 to the fifth recess 28 and the left and right inclined portions 29, 30 on the outer surfaces (outer surfaces 2a and 3a) of the top plate scraper 1, the fingers and palm fit snugly, making it easy for the hand H of the operator U to grip and fit, making scraping work easier. [Operation mode] Next, the operation of the top plate scraper 1 of the present invention will be described with reference to the drawings.

[0052] FIG. 8 shows a diagram of how the top plate scraper 1 of the present invention is used. As shown in Figure 8, a worker U holds the countertop scraper 1 of the present invention and places it against the upper edge 56 (the upper part of the edging material 55) of the countertop 51. The worker U slides the countertop scraper 1 backward to scrape the upper part of the edging material 55. When scraping the lower edge (lower part of the rim material 55) on the bottom (lower surface) side of the top plate 51, it is advisable to turn it upside down so that the bottom surface is facing up.

[0053] The front and rear bearings 14a, 14b roll on the edge material 55 (side surface 53), and the guide member 20 slides. The edge material contact portion 23, which includes the front and rear bearings 14a, 14b and the guide member 20, all come into contact with the edge material 55 of the straight portion 53a, so that the vertical member 3 is supported at a constant distance, and the blade 4 scrapes the upper portion (upper edge 56) of the edge material 55 on the straight portion 53a while maintaining a constant distance from the edge material 55 of the straight portion 53a.

[0054] When the top plate scraper 1 is pulled backward and reaches the end of the top plate 51, i.e., the corner portion 53b, the rear bearing 14b comes out of the edge material 55 (side surface 53) and is in a detached state (non-contact). At this time, the front bearing 14a contacts the edge material 55 of the straight portion 53a, and the guide member 20 (center guide) contacts the edge material 55 of the corner portion 53b, providing stable two-point support.

[0055] This two-point support prevents the cutting edge 4a (blade 4) from biting into the corner portion 53b, and keeps the distance between the upper portion (upper edge 56) of the rim material 55 and the cutting edge 4a constant. That is, with the support of the guide member 20 and the front bearing 14a, the distance between the top (upper edge 56) of the edging material 55 at the corner portion 53b and the cutting edge 4a is the same constant distance as the distance at the edging material 55 at the straight portion 53a. This prevents the cutting edge 4a (blade 4) from digging into the edging material 55 at the corner portion 53b, and makes it possible to keep the amount of cutting (scraping) by the cutting edge 4a (blade 4) constant.

[0056] In this way, the guide member 20 provided between the front and rear bearings 14a, 14b prevents the cutting edge 4a (blade 4) from digging into the edge material 55 of the corner portion 53b, and the amount of cutting off by the cutting edge 4a (blade 4) at the straight portion 53a and corner portion 53b of the side surface 53 (edge ​​material 55) of the top plate 51 becomes constant. That is, the finishing state of the upper edge 56 (upper part of the edging material 55) from the straight part 53a to the corner part 53b of the side surface 53 can be stably adjusted even by workers U with various skill levels.

[0057] As described above, according to the top plate scraper 1 of the present invention, a guide member 20 (center guide) that contacts the side surface 53 of the top plate 51 is provided between the front and rear bearings 14a, 14b arranged on the inner surface 3b of the vertical member 3, thereby avoiding a situation in which the blade 4 (cutting edge 4a) is pushed into the upper edge 56 (R portion) of the top plate 51, and the amount of cutting of the straight portion 53a and the angular portion 53b (corner portion) of the upper edge 56 (upper part of the edge material 55) of the top plate 51 is constant regardless of the skill level of the worker U, thereby enabling stable scraping processing to be performed.

[0058] It should be noted that the embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. In particular, in the embodiments disclosed herein, matters not explicitly stated, such as operating conditions, control conditions, dimensions and weights of components, etc., do not deviate from the scope of what a person skilled in the art would normally do, and are matters that a person skilled in the art would easily be able to imagine. [Explanation of symbols]

[0059] 1 baking sheet scraper 2 horizontal members 2a External surface 2b Inside surface 3 Vertical members 3a External surface 3b Inside surface 4 blades 4a cutting edge 4b Main body 4c through hole 5 Opening 6 Blade fixing part 7 Through holes 8 1st position adjustment section 8a screw 8b Spring 8c screw 9 Through holes 10 Second position adjustment section 11 Through hole 12 Protrusion amount adjustment part 12a Adjustment window 13 Through hole 14 Bearings 14a Bearing (front) 14b Bearing (rear) 15 Hole 16 through holes 17 Shaft 18 Hole 19 Through hole 20 Guide member 20a plane 21 Support part (convex part) 22 recess 23 Edge material contact area 24 First recess 25 Second recess 26 Third recess 27 4th recess 28 5th recess 29 Right slope 30 Left slope 51 Top plate 52 Top 53 Side 53a Straight section 53b Corner 54 Main body 55 Edge material 56 Upper edge (R part) U Operator (user) H hand K shavings

Claims

1. A top plate scraper that adjusts the finish of the top edge by sliding it longitudinally along the top edge, which is the area where the top surface of the top plate transitions to the side, and scraping the top edge. a horizontal member whose inner surface contacts the top surface of the top plate; a vertical member that is arranged to hang down from one edge of the horizontal member and whose inner surface contacts the side surface of the top plate; A blade provided at a location where the inner surface of the horizontal member and the inner surface of the vertical member intersect and scrapes the upper edge of the top plate; bearings that are rotatable on the inner surface of the vertical member so as to roll on the side surface of the top plate and are attached to the front and rear sides of the blade; a guide member formed between the pair of front and rear bearings and projecting inward from the inner surface of the vertical member, the guide member contacting the side surface of the top plate; A baking sheet scraper characterized by the above.

2. The guide member and the blade are arranged on the inner surface of the vertical member so as to be aligned in a sliding direction, The guide member and the bearing are arranged side by side in the sliding direction, and the amount of inward protrusion from the inner surface of the vertical member is the same.

2. The top plate scraper according to claim 1, wherein the top plate scraper is a metal scraper.

3. When the guide member reaches a corner of the side surface of the top plate, it is supported at two points by one of the pair of front and rear bearings, and the blade contacts the corner at a predetermined interval.

3. The top plate scraper according to claim 2.

4. A plurality of convex support portions are provided on an inner surface of the horizontal member that contacts the top surface of the top plate, The support portion contacts the top surface of the top plate, and a gap is formed between the recess adjacent to the support portion and the top surface of the top plate.

2. The top plate scraper according to claim 1, wherein the top plate scraper is a metal scraper.

5. A plurality of convex edge contact portions are provided on the inner surface of the vertical member that contacts the side surface of the top plate, The edge contact portion includes at least the guide member and the bearing, and the edge contact portion contacts the side surface of the top plate.

2. The top plate scraper according to claim 1, wherein the top plate scraper is a metal scraper.

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