JP2009167654A - Scraper, scraper attachment, and scraper device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a scraper which contributes to energy saving and speed-up of deposit removing work, and to provide a scraper attachment and a scraper device. <P>SOLUTION: According to the structure of the scraper 1, a spatula 3 is arranged on one end of a shank 2, and a vibration unit 40 for applying an impact to the shank 2 to vibrate the scraper 1 is detachably attached to the other end of the shank 2. The vibration unit 40 is formed of: the attachment 50 which is detachably attached to the other end of the shank 2; a rotating device 30 which has a rotationally driving means for generating a rotating output, and is detachably attached to the attachment 50; and a vibration generating section which is provided for either the attachment 50 or the rotating device 30, for applying an impact to the shank 2, based on the rotating output from the rotationally driving means. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a scraper for physically removing deposits, an attachment attached to such a scraper, and a scraper device including such a scraper.

  2. Description of the Related Art Conventionally, in a building renovation work site or the like, a scraper is used as a device for removing wallpaper that is bonded to a wall surface of a building or a floor panel that is bonded to a floor surface. In addition to such construction sites, in order to physically remove paint adhering to the floor surface of factories, etc., and deposits such as rust adhering to the metal surface from the surface to which this deposit adheres A scraper may be used.

  Generally, a scraper is configured by providing a sharp spatula body at one end of a shank (see, for example, Patent Document 1). The operator grasps the shank, inserts the tip of the spatula between the deposit and the base surface, and moves the tip of the spatula so as to rub on the base surface. Can be removed.

However, since the wallpaper and the floor panel need not be easily peeled off after installation, they are firmly bonded with an adhesive having a high adhesive strength. In this manner, when the deposit is firmly attached to the base surface, the deposit may not be sufficiently removed only by relying on the arm strength of the operator. In this case, the operator grasps the shank with one hand and hits the other end of the shank with a hammer held in the other hand, thereby moving the spatula body to remove strong deposits.
JP-A-9-23988

  However, in the work using such a conventional scraper, even if a hammer is used, as a result, the labor burden on the operator is large, and the work efficiency may be reduced. In particular, at construction sites of buildings, it is necessary to remove the adhered objects such as wallpaper and floor panels, and the work area is large, so the labor burden on the workers has become even greater. .

  The present invention has been made in view of such a problem, and an object of the present invention is to provide a scraper, a scraper attachment, and a scraper device that contribute to labor saving and speed-up of the removal work of deposits.

  In order to achieve such an object, a scraper according to the present invention is a scraper in which a spatula body is provided at one end of a shank, and the other end of the shank is detachable from a vibration unit that vibrates the scraper. It is characterized by being composed.

  According to such a configuration, the spatula body can be moved on the base surface while vibrating the scraper by the vibration unit in the operation of removing the deposit firmly adhered to the base surface. For this reason, the same operation can be obtained without applying an impact using a hammer as in the prior art.

  The vibration unit includes an attachment that is detachably attached to the other end of the shank, a rotating device that is detachably attached to the attachment, and a vibration generator that is provided on one of the attachment and the rotating device. The vibration generator may be configured to vibrate the scraper based on a rotational output generated by the rotating device. According to this configuration, the vibration unit can be easily attached to the shank by the attachment.

  The spatula body is fixed to one end portion of the shank, and is attached to the fixed plate so as to be swingable. A tip portion of the spatula body can be brought into contact with and separated from the tip portion of the fixed plate. A swing plate, a blade that is detachably mounted on the fixed plate and the tip of the swing plate, and a swing of the swing plate by pressing the tip of the swing plate against the tip of the fixed plate And a lock mechanism that regulates the above. According to such a configuration, the blade can be held between the fixed plate and the tip of the swing plate by pressing the tip of the swing plate with the lock mechanism, and the removal work performed while vibrating as described above is also possible. It can be performed stably.

  The attachment of the scraper according to the present invention is an attachment for detachably attaching the rotating device to the scraper, and the attachment is detachably attached to the scraper, and the rotating device is detachable from the attachment. In a state where the rotating device is mounted and attached to the scraper via the attachment, a rotation output generated by the rotating device is generated by a vibration generating unit provided in one of the attachment and the rotating device. Based on this, the scraper is configured to vibrate.

  According to such a configuration, the scraper can be vibrated based on the rotational output of the rotating device attached to the scraper via the attachment in the operation of removing the adhered matter firmly adhered to the base surface. Thereby, even if it does not give an impact using a hammer like the past, the same operation as this can be obtained.

  Further, in the case where the vibration generating unit is provided in the rotating device, the rotating device includes a rotation driving unit that generates a rotation output, and a socket connected to the rotation driving unit via the vibration generating unit. The vibration generating unit transmits a rotational output from the rotational driving means on the input side to the socket on the output side, and causes the input side to idle when the rotational load of the socket exceeds an allowable value. And the attachment includes a body attached to the other end of the shank, a mounting shaft protruding from the body, and a built-in body that rotates the mounting shaft. It may have a shaft fixing part fixed impossible, and it may be assembled with the rotation device by connecting the attachment shaft with the socket. According to this configuration, it is possible to generate vibration in the scraper simply by attaching the rotating device including the torque limiter and the socket connectable to the mounting shaft to the attachment.

  Further, in the case where the vibration generating unit is built in the attachment, the rotating device includes a rotation driving unit and a socket driven based on a rotation output of the rotation driving unit, and the attachment includes the attachment A body attached to the other end of the shank, and an attachment shaft protruding from the body, and the vibration generator is built in the body and applies an impact in the direction of the rotation axis based on the rotation of the attachment shaft. The rotation device may be attached to the attachment by connecting the attachment shaft to the socket. According to this configuration, for example, even if the torque limiter is not provided, the scraper is vibrated only by mounting the rotating device including the socket that is rotationally driven according to the rotational output from the rotational driving means. Can be generated.

  At this time, the vibration generating unit is capable of rotating integrally with the mounting shaft and is provided so as to be movable in the axial direction on the mounting shaft, and the rotational moving member coaxially with the mounting shaft. A non-rotatable fixing member disposed adjacent to the rotation member, and a biasing member that biases the rotation movement member in an axial direction so that a side surface of the rotation movement member abuts against a side surface of the fixation member. A plurality of ratchet ridges arranged in the circumferential direction may be formed on opposing side surfaces of the fixed member and the rotationally moving member. According to such a configuration, when the rotationally moving member rotates, the socket is guided by the ratchet ridges and moves in the axial direction so as to be separated from the fixed member. When the rotationally moving member gets over the ratchet mountain, the rotationally moving member is moved by the urging member so that the side surface of the rotationally moving member abuts the side surface of the fixed member. At the time of this contact, an impact based on the urging force of the urging member acts on the fixed member in the axial direction. This series of operations is repeated while the rotation driving means is driven, and an impact is intermittently applied to the fixing member. In this way, it is possible to configure a mechanism that applies an impact intermittently to the attachment with a simple configuration.

  In addition, a scraper device according to the present invention includes a scraper in which a spatula body is provided at one end of a shank, and a vibration unit that is provided in the other end of the shank and vibrates the scraper. Yes.

  Even in such a configuration, in the operation of removing the deposits firmly attached to the base surface, the deposits can be removed by moving the spatula body on the base surface while vibrating the scraper by the vibration unit. For this reason, the same operation can be obtained without applying an impact using a hammer as in the prior art.

  The vibration unit includes a rotation driving unit and a vibration generation unit that intermittently applies an impact in the direction of the rotation axis based on a rotation output from the rotation driving unit, and the vibration generation unit includes the vibration generation unit. A rotationally movable member that is rotationally driven based on the rotational output from the rotational drive means and is movable in the direction of the rotational axis, and a non-rotatable member that is disposed adjacent to the rotationally movable member on the rotational axis. A fixing member; and an urging member that urges the rotational movement member in an axial direction so as to bring a side surface of the rotational movement member into contact with a side surface of the stationary member, and each of the stationary member and the rotational movement member A plurality of ratchet ridges arranged in the circumferential direction may be formed on the opposite side surface. Even in such a configuration, the rotationally moving members move in the axial direction so as to be separated from the fixed member while being guided by the respective ratchet peaks. When the rotationally moving member gets over the ratchet mountain, the rotationally moving member is moved by the urging member so that the side surface of the rotationally moving member abuts the side surface of the fixed member. At the time of this contact, an impact based on the urging force of the urging member acts on the fixed member in the axial direction. While the rotational drive means is driving, the impact is intermittently applied from the rotationally moving member to the fixed member based on the urging force of the urging member, and the impact is intermittently applied to the scraper with a simple configuration. The apparatus which performs can be comprised.

  As described above, according to the present invention, it is possible to save labor for removing the deposits, and to improve the work efficiency.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this drawing, for convenience, the axial direction of the shank is oriented horizontally, and the rotational position of the shank is arranged so that the blade extends horizontally, and a plan view and a side view are shown. In the following description, the vertical direction and the horizontal direction follow the directions added in these drawings for ease of explanation, but can be appropriately changed according to the axial direction and the rotational position of the shank.

[Scraper body]
First, a scraper body according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4.

  FIG. 1 is a plan view of the scraper body 1. FIG. 2 is a side view of the scraper body 1 shown in FIG. As shown in FIGS. 1 and 2, the scraper body 1 has a shank 2, a spatula body 3, and an outer cylinder 4. The shank 2 is formed in a hollow cylindrical shape from stainless steel or the like to ensure vibration resistance and impact resistance, and the spatula body 3 is provided at one end of the shank 2. The outer cylinder 4 is formed in a cylindrical shape from a synthetic resin or the like, and is fitted on the outside of the other end portion of the shank 2. The outer diameter of the outer cylinder 4 is an appropriate size that is easy for an operator to grip.

  FIG. 3 is a side sectional view of the scraper body 1 taken along arrows III-III in FIG. FIG. 4 is a partial cross-sectional view of the scraper body 1 as seen along the arrow IV-IV in FIG. As shown in FIG. 3, a thread groove is formed on the outer peripheral surface of the other end portion of the shank 2, and a part of the groove is exposed without being covered by the outer cylinder 4 to form a male screw portion 5. The knob 23 shown in FIGS. 1 to 3 and 5 and the attachments 50, 69, and 90 of the vibration units 40, 68, and 80 shown in FIGS. 6 to 17 are detachably attached to the male screw portion 5. . These are mounted on the scraper body 1 to perform the removal work of the deposits, and the state in which these are mounted will be described later.

  The spatula body 3 has a main body 6 provided at one end of the shank 2 and a blade 7 detachably attached to the main body 6. The main body 6 has a fixed plate 8 that is fixed to the shank 2 and a swing plate 9 that is swingably attached to the fixed plate 8. Both plates 8 and 9 are made of aluminum or the like in order to reduce the weight and facilitate processing. The fixed plate 8 has a cylindrical press-fit portion 10 at its base end, and the press-fit portion 10 is press-fitted from one end opening of the shank 2.

  The main body 6 formed by assembling both the plates 8 and 9 is formed in a substantially trapezoidal shape that widens toward the end in a plan view, and is tapered in a side view. The fixing plate 8 forms an upper wall portion 11 (see also FIGS. 1 and 2) and a side wall portion 12 (see also FIG. 2) of the main body portion 6, and the swing plate 9 is a lower wall portion 13 of the main body portion 6. (See also FIG. 2). A space 14 surrounded by the inner surfaces of the plates 8 and 9 is formed in the main body 6.

  The upper wall portion 11 formed by the fixed plate 8 is inclined downward as it goes to the tip, and the lower wall portion 13 formed by the swing plate 9 is inclined upward as it goes to the tip. ing. The swing plate 9 is swingable with respect to the fixed plate 8 with a pin 15 extending substantially to the left and right as a support shaft, and the tip of the swing plate 9 swings up and down to fix the fixed plate 8. It is possible to contact and separate from the tip of the.

  The blade 7 can be sandwiched between the tip portions of both the plates 8 and 9. The blade 7 is made of a high-toughness metal material to ensure wear resistance, and is formed in a thin plate shape so as to be elastically deformable while being sandwiched between both plates 8 and 9.

  As shown in FIG. 4, a pair of pin fixing portions 16 are provided on both side edges of the swing plate 9. The upper wall portion 11 of the fixing plate 8 is provided with a plurality of cylindrical boss portions 17 each having a pin insertion hole at a constant interval between the pair of pin fixing portions 16 in the space 14. . The pin fixing portion 16 and the boss portion 17 are arranged on the same axis, and the axis extends substantially to the left and right in the same manner as the extending direction of the tip portions of the plates 8 and 9. Both ends of the pin 15 are fixed to a pair of pin fixing portions 16, and an intermediate portion thereof is rotatable in the pin insertion hole of each boss portion 17. In this way, the swing plate 9 is assembled to the fixed plate 8 so as to swing up and down around the axis of the pin 15.

  As shown in FIGS. 3 and 4, at the base end portion of the main body portion 6 (at least on the side opposite to the tip end portion where the blade 7 is sandwiched with respect to the pin 15), the tip end portion of the swing plate 9 is attached to the fixed plate 8. A lock mechanism 18 is provided for pressing the tip portion so that the swing plate 9 cannot swing. The lock mechanism 18 includes a restriction piece 19 built in a base end portion of the space 14 and an operation piece 22 for rotating the restriction piece 19. The operation piece 22 is disposed outside the plates 8 and 9 so that the operator can easily access the operation piece 22, and the operation piece 22 rotates integrally with the restriction piece 19 in the space 14 via the rod 20.

  The configuration will be specifically described. The restriction piece 19 is formed in a shape whose length in the vertical direction is variable in accordance with the rotational position, and in the present embodiment, the restriction piece 19 has an elliptical shape in a side view. The rod 20 extends left and right in the space 14. The rod 20 has a rectangular cross-sectional shape, and is inserted into a rod insertion hole having a rectangular shape in a side view formed in the restriction piece 19 so as to be rotatable integrally with the restriction piece 19. Both end portions of the rod 20 pass through the side wall portions 12 of the fixed plate 8 and protrude from the space 14 to the outside, and operation pieces 22 are attached to these end portions. The operation piece 22 has a pair of arms 22a extending from the handle 22b, and each end of the rod 20 is inserted into a rod insertion hole having a rectangular shape in side view formed in each of the arms 22a. Thereby, the operation piece 22 can rotate integrally with the rod 20 and the restriction piece 19 around the axis of the rod 20. Note that the end of the rod 20 is crimped in a state of being inserted through the arm 22 a, and there is no possibility that the operation piece 22 falls off the rod 20. Further, as is apparent from FIGS. 1 and 2, the handle 22 b of the operation piece 22 is formed in a semicircular arc shape along the outer diameter of the shank 2 when viewed from the axial direction.

  In addition, in order to insert the rod 20 as mentioned above, the circular through-hole is formed in each side wall part 12 of the fixed plate 8. A collar 21 formed in a substantially cylindrical shape from a synthetic resin is fitted into each through-hole from the inside, and a collar portion formed at an end portion of the collar 21 is in contact with the inner surface of the side wall portion 12. The rod 20 is inserted into a rectangular rod insertion hole formed in the collar 21 in a side view and rotates integrally with the collar 21. According to this structure, the movement of the rod 20 in the axial direction is restricted by the contact between the collar portion of the collar 21 and the inner surface of each side wall portion 12. Therefore, it is possible to prevent the rod 20 from coming off from the fixed plate 8, and it is possible to prevent the restricting piece 19 from being displaced in the axial direction in the space 14. Further, when the rod 20 rotates, the outer peripheral surface of the collar 21 is in sliding contact with the inner peripheral surface of the through hole. Therefore, there is no possibility of galling or the like due to direct sliding contact between the rod 20 and the fixed plate 8, and the rotation operation of the rod 20 can be performed stably over a long period of time.

  The operation of the spatula 3 relating to the lock mechanism 18 having the above configuration will be described with reference to FIG. As shown by a two-dot chain line in FIG. 3, in a state where the handle 22 b of the operation piece 22 is lifted upward and stands with respect to the shank 2, the long axis of the restriction piece 19 having an elliptical shape in side view is the shank 2. The short axis is directed up and down. For this reason, the restricting piece 19 is separated from the lower surface of the fixed plate 8 and the upper surface of the swing plate 9, and is suspended in a state supported by the rod 20 in the space 14. Therefore, the rocking plate 9 has a position where the tip end abuts against the tip end of the fixed plate 8, a tip end portion of the swing plate 9 that is spaced downward from the tip end of the fixed plate 8, and a base end portion on the outer peripheral surface of the restriction piece 19. It can be swung between the abutting position. As described above, since the tip of the swing plate 9 can be separated from the tip of the fixed plate 8, the blade 7 can be easily attached to and detached from the main body 6.

  Next, when the blade 7 is placed on the tip of the swing plate 9 and the handle 22b of the operation piece 22 is tilted downward and supported on the outer peripheral surface of the shank 2 as shown by a solid line in FIG. The rod 20 and the restriction piece 19 are rotated with the rotation of 22, the long axis of the restriction piece 19 is directed up and down, and the short axis is directed in the axial direction of the shank 2. As a result, the restricting piece 19 is in a state of being vertically stretched with respect to the fixed plate 8 and the swing plate 9 in the space 14, and the outer peripheral surface of the restricting piece 19 comes into contact with the inner surface of the upper wall portion 11 of the fixed plate 8. Are supported, and abut against the inner surface of the lower wall portion 13 of the swing plate 9 to press the inner surface downward. Therefore, the rocking plate 9 has its base end swinging downward and the tip swinging upward about the pin 15. The blade 7 placed on the tip of the swing plate 9 is sandwiched between the fixed plate 8 and the swing plate 9 based on the pressing force acting on the swing plate 9 from the restriction piece 19. On the contrary, since the base end portion of the swing plate 9 is pressed downward by the restriction piece 19, the tip end portion cannot swing away from the tip end portion of the fixed plate 8.

  At this time, since the outer peripheral surface of the restriction piece 19 is a curved surface, the restriction piece 19 is rotated until the restriction piece 19 comes into contact with the inner surfaces of the plates 8 and 9 until the restriction piece 19 is stretched. The operation and the rotation operation in the opposite direction can be performed smoothly.

  As will be described later, the scraper body 1 is used for work in a state where the blade 7 is sandwiched between the body portions 6 in this way. When the blade 7 is mounted, the handle 22b of the operation piece 22 is stored on the outer peripheral surface of the shank 2 so that the scraper body 1 is compact and easy to handle during work.

  Further, in the lock mechanism 18 described above, the rod 20 has a rectangular cross-sectional shape, and the rod 20 is inserted into the restriction piece 19 and the operation piece 22 in which the rectangular rod insertion hole is formed. The operation piece 22 is integrally rotated. By adopting this cross-sectional shape, it is possible to easily manufacture a structure for integrally rotating both through the rod 20 without performing high-precision processing. At the same time, since it becomes possible to easily position the regulating piece 19 and the operation piece 22 in the rotation direction with respect to the rod 20, the operation piece 22 is positioned via the positioning of the regulating piece 19 and the operation piece 22 with respect to the rod 20. The long axis of the restricting piece 19 can be easily positioned according to the position of the handle 22b. Note that the cross-sectional shape of the rod 20 is not limited to a rectangular shape, and a similar effect can be obtained if it is a non-circular shape such as a triangle or a hexagon.

[Mounting the knob]
Next, the case where the knob 23 is attached to the scraper body 1 will be described with reference to FIGS. 3 and 5.

  As shown in FIG. 3, the knob 23 (the external view is shown in FIGS. 1 and 2) is formed in a substantially spherical shape by, for example, injection molding of synthetic resin. The knob 23 is formed with a female screw hole 24 to be screwed with the male screw portion 5 of the shank 2. Further, the knob 23 is formed with a through hole 25 that communicates with the female screw hole 24 and opens on the opposite side to the female screw hole 24 in the axial direction. The through hole 25 is disposed coaxially with the female screw hole 24 and has a smaller diameter than the female screw hole 24, and an annular surface 26 that forms the inner bottom surface of the female screw hole 24 is formed inside the knob 23. Is formed around the through hole 25.

  In the female screw hole 24 and the through hole 25, a hit member 27 made of a metal material such as stainless steel is provided. The hit member 27 has a columnar base portion 27a and a disk-like flange portion 27b protruding from the axial center of the base portion 27a in the outer peripheral direction, and is inserted from the female screw hole 24 side to be connected to the knob 23. Assembled. In this assembled state, the collar portion 27 b abuts on the annular surface 26, one end portion of the base portion 27 a is press-fitted into the through hole 25, and the other end portion of the base portion 27 a is disposed in the female screw hole 24. The end face of this one end is exposed from the through hole 25 to the top of the knob 23. The diameter of the base portion 27 a of the hit member 27 is smaller than the inner diameter of the shank 2, and the diameter of the flange portion 27 b is substantially equal to the outer diameter of the shank 2. Therefore, when the female screw hole 24 of the knob 23 is screwed into the male screw portion 5 of the shank 2, the other end portion of the base portion 27a disposed in the female screw hole 24 is inserted into the shank 2, and the flange portion 27 b contacts the other end surface of the shank 2.

  FIG. 5 is an explanatory diagram of the removal work of the deposit 29 performed using the scraper body 1 to which the knob 23 is attached. As shown in FIG. 5, a sticky deposit 29 is adhered to the floor surface 28. The operator holds the knob 23 of the scraper body 1 and inserts it between the deposit 29 and the floor surface 28 while elastically deforming the blade 7. Then, the shank 2 is pushed in the axial direction as indicated by the arrow f, and the blade 7 is moved so as to rub on the floor surface 28 as indicated by the arrow F. Thereby, the deposit 29 can be physically peeled from the floor surface 28 to the upper surface side of the blade 7. In addition, since the outer peripheral surface of the knob 23 is uneven by a plurality of grooves, it is easy to transmit the pressing force from the operator to the scraper body 1 by increasing the grip force of the operator. In addition, since a gripping knob 23 is attached to the end of the shank 2, the floor surface can be removed without taking an unreasonable posture such as bending the waist without increasing the axial length of the shank 2. It can be carried out.

  When the deposit 29 is firmly adhered to the floor surface 28, the operator holds the outer cylinder 4 with one hand and inserts the blade 7 between the deposit 29 and the floor surface 28, and the other side. The top of the knob 23 may be hit with a hammer (not shown) held in the hand. As a result, an impact in the axial direction of the shank 2 from the hammer acts on the scraper main body 1 as indicated by an arrow f, and the blade 7 is propelled larger than when pushed by hand based on this impact as indicated by an arrow F. It moves on the floor surface 28 under the force. Therefore, even a strong deposit can be peeled off from the floor surface 28.

  Since the base portion 27a of the metal hitting member 27 is exposed at the top of the knob 23, the impact f does not directly act on the knob 23 even if it is hit with a hammer. For this reason, it becomes possible to select the material of the knob 23 without giving priority to ensuring the impact resistance, and the knob 23 can be reduced in weight by using, for example, a synthetic resin. Further, since the flange portion 27b is in contact with the other end surface of the shank 2, there is no possibility that the hit member 27 moves in the axial direction and is buried in the through hole 25 even if it is hit with a hammer.

[Installation of first vibration unit]
Next, the case where the 1st vibration unit 40 is mounted | worn with the other end part of the shank 2 of the said scraper main body 1 is demonstrated, referring FIG. 6 thru | or FIG.

  FIG. 6 is a plan view of the scraper body 1 to which the first vibration unit 40 is attached. FIG. 7 is a side view of the scraper body 1 shown in FIG. As shown in FIGS. 6 and 7, the vibration unit 40 includes an attachment 50 that is detachably attached to the other end of the shank 2, a rotating device 30 that is detachably attached to the attachment 50, and the attachment 50. A support unit 41 that holds the connection with the rotating device 30 is provided. Thus, the attachment 50 is for attaching the rotating device 30 to the scraper body 1. The vibration unit 40 is attached to the scraper body 1 by first attaching the support unit 41 to the rotating device 30, attaching the attachment 50 to the shank 2, and then attaching the rotating device 30 and the support unit 41 to the attachment 50. Done in Hereinafter, the configuration of the vibration unit 40 will be described along this mounting procedure.

  As shown in FIG. 7, the rotating device 30 is a so-called impact driver known as a device used for screwing or drilling, and includes a gun-shaped housing 31 having a barrel 32 and a grip 33. The barrel 32 incorporates an electric motor 34 whose outer shape is substantially cylindrical. The barrel 32 is formed in a substantially cylindrical shape as a whole so as to match the shape of the electric motor 34, and its end is formed in a tapered cone shape. A socket 35 that is rotationally driven by an electric motor 34 is provided at the tip. The socket 35 is formed with a tool receiving hole 35a that fits with an end portion of a shaft-like rotary tool (not shown) such as a driver or a drill. The cross-sectional shape of the tool receiving hole 35a is a regular hexagon, and the end portion of the rotary tool is also a cross-sectional shape corresponding thereto. For this reason, the rotational driving force of the socket 35 is transmitted to the rotary tool without loss.

  The barrel 32 incorporates a torque limiter 36 disposed between the output shaft of the electric motor 34 and the socket 35. The torque limiter 36 idles the electric motor 34 when the rotational load on the socket 35 exceeds a predetermined allowable value, and in the direction of the rotation axis toward the socket 35 based on the idling of the electric motor 34. Are configured to be intermittently performed (for example, 3 to 10 times / second), so that, for example, screws can be firmly tightened. When such a hit is performed, vibration corresponding to the hit interval is generated on the socket 35 side. A rotation changeover switch 37 for switching the rotation direction of the electric motor 34 is provided at an appropriate location of the housing 31, and the rotation direction of a tool or the like attached to the socket 35 can be changed by operating the rotation changeover switch 37. it can.

  The grip 33 is provided to extend downward from the barrel 32. A trigger 38 that functions as means for operating the drive of the electric motor 34 is provided at the front upper portion of the grip 33, and a battery 39 that functions as a power source for the electric motor 34 is detachably attached to the lower portion of the grip 33. It has been.

  As shown in FIGS. 6 and 7, the support unit 41 includes a back bracket 42 provided at the proximal end portion of the barrel 32 of the rotating device 30, a front bracket 43 provided at the distal end portion of the barrel 32, and both brackets 42. , 43 are connected to each other with a pair of ball screws 44.

  The back bracket 42 is installed so as to contact the rear end surface of the barrel 32. The front bracket 43 has a circular opening at the center, and the opening is fitted into the tapered tip of the barrel 32 and attached. By setting the opening of the front bracket 43 to an appropriate size, the outer peripheral surface of the front end portion of the barrel 32 and the inner surface of the opening of the front bracket 43 come into contact, and the front bracket 43 is locked to the front end portion of the barrel 32. Is done.

  The back bracket 42 has two wing portions 42 a and 42 a, and these wing portions 42 a and 42 a are disposed so as to protrude outward from the barrel 32 when the brackets 42 and 43 are attached to the barrel 32. The front bracket 43 also has similar wing portions 43a and 43a. The pair of ball screws 44 are provided so as to pass through the wing portions 42 a and 43 a facing each other in the axial direction, and nuts 45 and 46 are attached from both ends of each ball screw 44. By tightening the nut 46 attached from one end side in the axial direction, the front bracket 43 is held in a state of being locked to the tip end portion of the barrel 32. The back bracket 42 is held in contact with the end surface of the barrel 32 by tightening the nut 45 attached from the other end side in the axial direction.

  FIG. 8 is an exploded perspective view of the attachment 50. FIG. 9 is a partial cross-sectional view of the scraper main body 1 shown along the arrow IX-IX direction shown in FIG. 7, and the illustration of the rotating device 30 is omitted. As shown in FIGS. 8 and 9, the attachment 50 includes a body 51 formed from, for example, aluminum. The body 51 includes a base portion 51a in which an insertion hole 52 is formed, and two wing portions 51b and 51b protruding from the base portion 51a in the axis orthogonal direction. The insertion hole 52 is formed with a thread groove on the inner peripheral surface of a portion adjacent to the one end opening, and forms a female screw portion 53 that can be screwed with the male screw portion 5.

  The body 51 is formed with an L-shaped slit 54 that extends horizontally from the insertion hole 52 toward the one wing portion 51 b and further extends upward. In the body 51, a body upper part 51c and a body lower part 51d separated by the slit 54 can be brought into contact with and separated from each other. A screw hole 51e extending vertically is formed so as to penetrate the body upper part 51c and the body lower part 51d, and a hexagon socket head bolt 55 having a hexagon hole formed in the head is screwed into the screw hole 51e. ing. By rotating the bolt 55 using a bar wrench or the like aligned with the hexagonal hole and moving it forward and backward in the screw hole 51e, the facing distance between the body upper part 51c and the body lower part 51d can be adjusted.

  From the body 51, the end of the mounting shaft 56 protrudes from the other end side of the insertion hole 52. A shaft fixing portion 60 for fixing the attachment shaft 56 is incorporated in the other end portion inside the insertion hole 52.

  The shaft fixing portion 60 includes a cylindrical screw member 61 having a thread groove formed on the outer peripheral surface, and a connecting shaft 62 inserted inside the screw member 61. A flange 62 a is formed at one end of the connecting shaft 62, and a receiving groove 61 a for receiving the flange 62 a is formed at one end of the screw member 61. When the connecting shaft 62 is inserted from one end side of the screw member 61, the connecting shaft 62 is moved to the other end side in the axial direction with respect to the screw member 61 by receiving the flange portion 62a in the receiving groove 61a. Be regulated. The screw member 61 and the connecting shaft 62 are formed with key grooves 61b and 62b, respectively, and the connecting shaft 62 is fastened to the screw member 61 via a sink key 63 received in the key grooves 61b and 62b. Has been.

  The screw member 61 to which the connecting shaft 62 is fastened is inserted from the other end side of the insertion hole 52, rotated in a predetermined direction corresponding to the direction of the screw groove, and screwed into the female screw portion 53. 51 and assembly. In the properly assembled state, the other end of the connecting shaft 62 is in the same position as the position where the other end opening of the insertion hole 52 is formed. Further, since the axial length of the connecting shaft 62 is longer than that of the screw member 61, the outer peripheral surface of the portion of the connecting shaft 62 protruding to the other end side with respect to the screw member 61 and the inner periphery of the insertion hole 52. A collar 64 made of synthetic resin is inserted in order to fill the gap with the surface. Further, retaining rings 65 and 66 for supporting the outer peripheral side and the inner peripheral side of the collar 64 are provided so that the collar 64 does not fall out of the insertion hole 52.

  A mounting hole 62c is formed in the other end surface of the connecting shaft 62 of the shaft fixing portion 60 configured as described above, and the shaft fixing portion is formed by press-fitting one end of the mounting shaft 56 into the mounting hole 62c. 60 is fixed. The other end portion of the mounting shaft 56 protruding from the body 51 has a hexagonal cross-sectional shape, and can be connected to the socket 35 by fitting into the tool receiving hole 35 a of the socket 35.

  In the attachment 50 including the mounting shaft 56 and the shaft fixing portion 60, first, the other end portion of the shank 2 is inserted into the insertion hole 52 of the body 51 of the attachment 50, and the male screw portion 5 is inserted into the female screw portion 53. Then, the hexagon socket head cap screw 55 is tightened downward to narrow the space between the body upper portion 51c and the lower body portion 51d, thereby narrowing the insertion hole 52, and the shank 2 and the body 51 are firmly assembled. . When properly assembled, one end surface of the screw member 61 comes into contact with the other end surface of the shank 2.

  The support unit 41 and the rotation device 30 are assembled to the attachment 50 attached to the shank 2 in this way. At this time, the mounting shaft 56 is received in the tool receiving hole 35a, and the ball screw 44 is inserted into the through hole 51f formed in the wing portion 51b of the body 51 of the attachment 50. Next, by tightening the nut 47 from one end side of the ball screw 44, the relative movement of the rotating device 30 in the axial direction with respect to the attachment 50 is restricted, and the rotating device 30 is held in a state of being connected to the attachment 50. Thus, in the state in which the vibration unit 40 is mounted, the axes of the shank 2, the insertion hole 52 of the body 51, the attachment shaft 56, and the tool receiving hole 35a are arranged coaxially.

  FIG. 10 is an explanatory view for explaining the removal work of the deposit 29 performed using the scraper body 1 shown in FIG. As shown in FIG. 10, the operator holds the grip 33 of the rotating device 30 and inserts the blade 7 between the floor surface 28 and the deposit 29. Then, the rotation changeover switch 37 of the rotation device 30 is set so that the rotation direction of the electric motor 34 coincides with the rotation direction when the screw member 61 is screwed. When the trigger 38 of the rotating device 30 is pulled, electric power is supplied from the battery 39 to the electric motor 34, and the electric motor 34 is driven to transmit the rotation output to the socket 35.

  The mounting shaft 56 is received in the tool receiving hole 35 a of the socket 35, and the mounting shaft 56 tries to transmit rotation to the connecting shaft 62 and the screw member 61 connected to the connecting shaft 62. The screw member 61 is transmitted with rotation in a direction to enter the insertion hole 52, but the end surface of the screw member 61 is in contact with the other end surface of the shank 2 and cannot rotate. As a result, a rotational load exceeding the allowable value of the torque limiter 36 is applied to the socket 35, and the torque limiter 36 intermittently strikes the socket 35 side from the electric motor 34 side. This impact is transmitted to the mounting shaft 56. As a result, an impact directed in the axial direction of the shank 2 is transmitted to the entire scraper body 1, and vibration is generated in the scraper body 1.

  For this reason, the operator simply applies the blade 7 to the floor surface 28 and continues the trigger operation, and intermittently applies the impact from the rotating device 30 to the blade 7 to easily remove the strong deposits. Will be able to. Moreover, by pulling the trigger 38 with one hand, the same effect as that performed using a hammer when the knob is attached can be achieved, and the work efficiency can be greatly improved.

[Installation of second vibration unit]
Next, a case where the second vibration unit 68 is attached to the scraper body 1 will be described with reference to FIGS. 11 to 13. The second vibration unit 68 has an attachment configuration different from that of the first vibration unit 40, and the same rotating device 30 and support unit 41 as the first vibration unit 40 are applied. The same reference numerals are assigned to the same components, and detailed description thereof is omitted.

  FIG. 11 is a side view of the scraper body 1 to which the second vibration unit 68 is attached. 12 is an exploded perspective view of the attachment 69 of the second vibration unit 68 shown in FIG. FIG. 13 is a partial cross-sectional view of the scraper main body 1 taken along the arrow XIII-XIII direction shown in FIG. 11 and omits the rotating device. As shown in FIGS. 11 to 13, the attachment 69 includes a body 51 having the same shape as the attachment of the first vibration unit.

  As shown in FIGS. 12 and 13, a mounting shaft 56 having the same shape as the first vibration unit protrudes from the body 51 to the other end side, and the other end of the insertion hole 52 is input to the mounting shaft 56. A vibration generating unit 70 that generates vibration in the direction of the rotation axis based on the rotation output is incorporated.

  The vibration generating unit 70 includes a cylindrical screw member 71 having a thread groove formed on the outer peripheral surface, a rotationally moving member 72 disposed adjacent to the axially direction of the threaded member 71, and a side surface of the rotationally moving member 72. Is provided with a coil spring 73 that urges the rotationally moving member 72 in the axial direction so as to maintain a state in which it is in contact with the side surface of the screw member 71.

  A connecting shaft 62 having the same shape as that of the second embodiment is inserted through the screw member 71 and the rotationally moving member 72. A receiving groove 71a for receiving the flange portion 62a of the connecting shaft 62 is formed on one end side of the screw member 71. When the connecting shaft 62 is inserted from one end side of the screw member 71, the connecting shaft 62 is received by the receiving groove 71a. The movement to the other end side in the axial direction is restricted by being received inside.

  The rotationally moving member 72 is disposed on the connecting shaft 62 and adjacent to the other axial end of the screw member 71. The side surfaces of the screw member 71 and the connecting shaft 62 are formed with key grooves 72a and 62b, respectively, and the connecting shaft 62 and the rotationally moving member 72 are connected via a sink key 74 received in the key grooves 72a and 62b. It is concluded. Since the key groove 72a of the rotationally moving member 72 is opened on the side surface on the other end side, the rotationally moving member 72 is movable on the connecting shaft 62 in the axial direction.

  A plurality of ratchet peaks 71 c and 72 c arranged in the circumferential direction are formed on the opposing surfaces of the screw member 71 and the rotationally moving member 72. The screw member 71 and the rotationally moving member 72 are brought into contact with each other so that one ratchet mountain is received in a groove formed between the other ratchet mountains.

  A groove is formed near the other end of the insertion hole 52, and a ball bearing 75 is accommodated in the groove. One end of the connecting shaft 62 is rotatably supported by the screw member 71, and the other end is rotatably supported by the ball bearing 75. Further, the insertion holes 52 are provided with retaining rings 65 and 66 similar to those of the first vibration unit 40 so that the ball bearing 75 does not fall out of the insertion holes 52. Thereby, the ball bearing 75 is in a state in which movement in the axial direction is restricted in the groove.

  In the insertion hole 52, a ring-shaped gap is formed between the side surface of the ball bearing 75 and the end surface of the rotation moving member 72. In this gap, the coil spring 73 is disposed in a compressed state. The coil spring 73 is supported by the side surface of the ball bearing 75 that is immovable in the axial direction, and biases the rotationally moving member 72 toward one end side in the axial direction.

  The attachment 69 is also attached to the shank 2 in the same manner as the attachment of the first vibration unit 40, and is assembled to the support unit 41 and the rotation device 30. In a properly assembled state, the side surface of the screw member 71 is in contact with the other end surface of the shank 2. In this manner, the scraper body 1 to which the vibration unit 68 is mounted is used to remove the deposits.

  The procedure of this removal operation is the same as that when the first vibration unit 40 is attached. That is, the operator holds the grip 33 of the rotating device 30, sandwiches the blade 7 between the deposit and the floor, and pulls the trigger 38. As a result, the electric motor 34 of the rotating device 30 is driven, and the rotation output from the electric motor 34 is transmitted to the socket 35.

  In the present embodiment including the vibration generating unit 70 having the above-described configuration, the attachment shaft 56, the connecting shaft 62, and the rotation moving member 72 are rotated together with the socket 35. At this time, since the screw member 71 is restricted from moving in the rotation direction and the axial direction, the rotation moving member 72 rotates such that its own ratchet mountain climbs over the ratchet mountain on the side surface of the screw member 71. Thus, the ratchet mountain of itself is guided by the ratchet mountain of the screw member 71, whereby the rotationally moving member 72 escapes to the other axial end side, and the coil spring 73 is compressed. When the rotationally moving member 72 gets over the ratchet mountain, the rotationally moving member 72 is urged toward one end in the axial direction by the compressed coil spring 73. Thereby, the rotationally moving member 72 is instantaneously moved so as to contact the side surface of the screw member 71, and the ratchet mountain of the rotationally moving member 72 is received inside the groove between the ratchet mountains of the screw member 71. At this time, an impact based on the biasing force of the coil spring 73 is applied from the rotationally moving member 72 to the screw member 71.

  As long as the operator continues the operation of pulling the trigger 38, the above-described operation of the rotationally moving member 72 is repeatedly performed. As a result, the scraper body 1 is vibrated as in the second embodiment. As a result, as in the second embodiment, the strong deposit removal operation can be performed without burdening the operator.

  In this vibration unit, a vibration generating unit 70 that generates vibration in the scraper body 1 is provided in the attachment 69. For this reason, the rotation device of the second vibration unit only needs to be configured to be able to transmit the rotational driving force to at least the mounting shaft 56, and even if the torque limiter is omitted from the rotation device of the first vibration unit, the scraper body 1 can be vibrated.

[Installation of third vibration unit]
Next, a modified example of the vibration unit will be described as a third vibration unit 80 with reference to FIGS.

  FIG. 14 is a plan view of the scraper body 1 to which the third vibration unit 80 is attached. 15 is a side view of the scraper body 1 shown in FIG. 16 is a bottom view of the scraper body 1 shown in FIG. As shown in FIGS. 14 to 16, the vibration unit 80 includes a rotation device 30 that is the same as the first and second vibration units, an attachment 90 attached to the other end of the shank 2, and the attachment 90. And a support unit 81 that maintains a connection state with the rotating device 30.

  The attachment 90 includes a rectangular parallelepiped body 91, and an insertion hole (not shown) is formed in the body 91 in the same manner as the first and second vibration units. A female screw is formed near one end opening of the insertion hole. A portion (not shown) is formed, and this female screw portion can be screwed into a male screw portion formed at the other end portion of the shank 2. A mounting shaft 92 having a hexagonal cross section protrudes from the other end portion of the body 91, and the other end portion of the insertion hole has a shaft fixing portion similar to the first vibration unit or the second vibration unit. A similar vibration generating unit is provided. The mounting shaft 92 is held by these shaft fixing portions or vibration generating portions. A bar-type handle 99 protrudes from the body 91 of the attachment 90 in the direction perpendicular to the axis.

  The support unit 81 is provided so as to straddle between the grip 33 and the attachment 90 of the rotating device 30. The support unit 81 is disposed below the body 91 of the attachment 90, and includes a lower bracket 82 connected to the body 91 via upper and lower ball screws 83, and a pair of horizontal ball screws 84 extending rearward from the lower bracket 82. I have. By rotating the upper and lower ball screws, the lower bracket 82 can move up and down along the axis of the upper and lower ball screws 83. Further, the horizontal ball screws 84 are spaced apart from each other by a predetermined distance and extend in parallel to each other.

  In the third vibration unit 80 configured as described above, the upper and lower ball screws 83 are rotated, the lower bracket 82 is set at a predetermined position, and the attachment 90 is assembled to the other end of the shank 2 in this state. Next, the rotating device 30 is assembled to the attachment 90. At this time, the rotating device 30 and the attachment 90 are moved relative to each other in the axial direction so that the mounting shaft faces the tool receiving hole. At this time, the grip 33 is sandwiched by the horizontal ball screw 84.

  17 is a rear view showing the positional relationship between the grip 33 of the rotating device 30 and the support unit 81 as seen in the direction of the arrow XVII shown in FIG. As shown in FIG. 17, the grip 33 of the rotating device 30 generally has a line-symmetric shape in the width direction with respect to the symmetrical axis extending vertically, and the width varies depending on the vertical position. In this embodiment, since the width is increased toward the lower side, the grip 33 can be positioned between the pair of horizontal ball screws 84 by setting the lower bracket 82 upward. Thereafter, by moving the lower bracket 82 downward, the pair of horizontal ball screws 84 can be locked to the outer surface of the grip 33. As a result, the support unit 81 applies a pressing force downward to the rotating device 30 from the pair of horizontal ball screws 84, and the mounting shaft 92 is maintained in a state of being connected to the socket 35.

  In the present embodiment, the removal work of the attached matter is performed in a state where the rotating device 30 is attached to the scraper main body 1 through the attachment 90 in this way. The operator can generate vibration in the scraper body 1 by holding the handle 99 with one hand, holding the grip 33 of the rotating device 30 with one hand, and continuously pulling the trigger 38. For this reason, it is possible to cause the worker to perform a strong removal work of deposits without placing a burden on the labor. In addition, since the handle | steering-wheel 99 which an operator can hold | grip is provided in the attachment 90, an operator hold | grips the rotation apparatus 30 and the handle | steering-wheel 99 by the side of attachment 90 with both hands, and the rotation apparatus 30 and the attachment 90 are attached. The connected state can be held by itself.

[Scraper device]
Next, a scraper device according to the present invention will be described with reference to FIGS. About the same structure as the said form, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  FIG. 18 is a plan view of the scraper device 100 according to the present invention. FIG. 19 is a partial cross-sectional view of the scraper device 100 as seen along the direction of the arrow XIX-XIX shown in FIG. As shown in FIGS. 18 and 19, the scraper device 100 has a vibration generator 101 integrally assembled with the other end of the shank 2 of the scraper body 1 having the same configuration as described above. The vibration generator 101 includes a gun-shaped housing 102 having a barrel 103 and a grip 104. The barrel 103 has a cylindrical cylindrical portion 105 and a tapered conical cone portion 106 assembled at the tip of the cylindrical portion 105, and the grip 104 extends downward from the cylindrical portion 105.

  The inside of the cylindrical portion 105 is partitioned in the axial direction into a motor storage chamber 107 and a speed reduction mechanism storage chamber 108, and the speed reduction mechanism storage chamber 108 is located between the motor storage chamber 107 and the internal space 109 of the conical portion 106. It is sandwiched. An electric motor 110 is housed in the motor housing chamber 107. The electric motor 110 is driven by electric power supplied from the grip 104 via a wire 111 extending to the outside, and rotates a motor output shaft 112 that is rotatably supported in the motor housing chamber 107. The grip 104 is provided with a trigger 126 that functions as an operation switch for driving the electric motor 110.

  An end portion of the motor output shaft 112 projects into the speed reduction mechanism accommodation chamber 108. A deceleration mechanism 114 that decelerates the rotational output of the motor output shaft 112 and transmits it to the deceleration rotation shaft 113 is accommodated in the deceleration mechanism accommodation chamber 108. The speed reduction mechanism 114 is composed of, for example, a single pinion type planetary gear mechanism. In this case, the motor output shaft 112 can be arranged coaxially with the reduction rotation shaft 113, and the reduction mechanism 114 fixes the rotation of the motor output shaft 112 fixed to the sun gear element 115 to the ring gear element 116. The reduced speed rotation shaft 113 is decelerated and transmitted. The reduction rotation shaft 113 is provided so as to penetrate the conical portion internal space 109 from the inside of the reduction mechanism accommodation chamber 108. The tip of the conical portion 106 has a boss shape. The vibration generator 101 is attached to the other end portion of the shank 2 by screwing the tip end portion into the male screw portion 5. Further, the tip portion forms a bearing accommodating portion 117. The reduction rotation shaft 113 is rotatably supported by a bearing 118 provided in the reduction mechanism accommodation chamber 108 and a bearing 119 accommodated in the bearing accommodation portion 117. The bearing 119 accommodated in the bearing accommodating portion 117 is in contact with the other end surface of the shank 2 and is restricted from moving in the axial direction.

  A vibration generator 120 is housed inside the conical portion 106. The vibration generating unit 120 includes a fixing member 121 that is fitted to the tip of the conical portion internal space 109 and cannot be rotated, a rotationally moving member 122 provided on the reduction rotating shaft 113, and the rotationally moving member 122 in the axial direction. And a coil spring 123 that biases and maintains the state in which the rotationally moving member 122 is in contact with the side surface of the fixed member 121.

  The fixed member 121 is provided on the reduction rotation shaft 113 but is assembled so as not to rotate integrally with the reduction rotation shaft 113. The rotation moving member 122 is coupled to the reduction rotation shaft 113 via a sink key 124, and can rotate integrally with the reduction rotation shaft 113 and can move in the axial direction. A ratchet mountain is formed on the side surface of the fixed member 121 and the side surface of the rotationally moving member 122 in the same manner as the vibration generating portion of the third embodiment. One end of the coil spring 123 is supported by a partition wall 125 that partitions the conical inner space 109 from the speed reduction mechanism accommodation chamber 108 of the cylindrical portion 105, and the other end is supported by a side surface of the rotationally moving member 122.

  When removing the deposit using the scraper device 100 including such a vibration generator 101, the end (not shown) of the wire 111 is electrically connected to a power source and the grip 104 is held with one hand. Then, the trigger 126 may be pulled. Thereby, the motor output shaft 112 is rotationally driven by the electric motor 110, and this rotational output is decelerated by the speed reduction mechanism 114 and transmitted to the speed reduction rotation shaft 113. The decelerating rotation shaft 113 rotates integrally with the rotation moving member 122. When the rotational movement member 122 rotates, the rotational movement member 122 escapes to the other end side in the axial direction so as to get over the ratchet mountain of the fixed member 121, and the coil spring 123 is compressed. When the rotationally moving member 122 gets over the ratchet mountain, the rotationally moving member 122 is biased toward one end in the axial direction by the compressed coil spring 123. Thereby, the rotationally moving member 122 moves instantaneously and contacts the side surface of the fixed member 121. At the time of this contact, an impact is applied from the rotationally moving member 122 to the fixed member 121 toward one end side in the axial direction based on the biasing force of the coil spring 123. This operation is repeated as long as the operator pulls the trigger 126, and an impact is applied to the fixing member 121 intermittently. As a result, vibration is generated in the scraper body 1.

  In this way, by using the scraper device 100 including the vibration generating device 101, the removal of strong deposits can be performed without burdening the operator in the same manner as when the vibration unit is mounted on the scraper body. Can be made to do.

[Modification of spatula]
Next, with reference to FIG. 20 thru | or FIG. 24, the modification of the spatula body of the scraper main body 1 is demonstrated.

  FIG. 20 is a side view of the main body 131 of the spatula body 130 according to the sixth embodiment. FIG. 21 is a plan view of the main body 131 of the spatula body 130 shown in FIG. As shown in FIGS. 20 and 21, the main body 131 of the spatula body 130 is formed by assembling a pair of plates 132 and 133 composed of a fixed plate 132 and a swinging plate 133 up and down. In this assembled state, the main body 131 has a substantially trapezoidal shape that spreads out in plan view. The fixing plate 132 forms a lower wall portion 134 and a lower half portion 136 of both side wall portions 135, and the swing plate 133 includes an upper half portion 137 and an upper wall portion 138 of both side wall portions 135 of the main body portion 131. There is no.

  FIG. 22 is a top view of the fixed plate shown in FIG. FIG. 23 is a bottom view of the fixing plate shown in FIG. FIG. 24 is a side sectional view of the spatula body 130 shown along the arrow XXIV-XXIV direction shown in FIG. FIG. 24A shows a state where a dial 145 of a lock mechanism 144 described later is moved downward, and FIG. 24B shows a state where the dial 145 is moved upward.

  As shown in FIG. 22, the fixed plate 132 has a cylindrical press-fit portion 139 that is press-fit into one end opening of the shank 2. Further, a support surface 140 is formed on the upper surface side of the fixed plate 132, and a pair of flanges 142 projecting upward from the support surface 140 at the front end portion of the support surface 140 of the fixed plate 132 (see FIG. 22). Is formed. The support surface 140 is formed with a bolt receiving hole 149 that is recessed downward in a hexagonal shape.

  As shown in FIG. 23, a pair of left and right error portions 143 is formed at the tip of the lower surface 141 of the swing plate 133, and the error portions 143 can be received inside the collar portion 142. In addition, a slit hole 147 having a rectangular cross section is formed in the swing plate 133, and the slit hole opens in the upper half part 137 of both side walls 135 (see also FIG. 20). Further, the swing plate 133 is formed with a through hole 148 that passes vertically and communicates with the slit hole 147.

  As shown in FIGS. 20 and 21, the main body 131 is provided with a lock mechanism 144 for performing an operation of swinging the swing plate 133 up and down with respect to the fixed plate 132. The lock mechanism 144 uses a screw mechanism and is screwed into a disk-shaped dial 145 whose outer peripheral surface is knurled to prevent slipping, and a female screw hole formed through the center of the dial 145. The bolt 146 is joined. The dial 145 is previously accommodated in the slit 147 hole of the swing plate 133, and the bolt 146 is inserted into the through-hole 148 from the lower surface side and screwed into the dial 145. In this way, the swing plate 133 with the lock mechanism 144 assembled is assembled to the fixed plate 132. The dial 145 assembled to the swing plate 133 has a part of its outer peripheral surface slightly protruded outward from the both side walls 135 of the swing plate 133 so that the operator can easily access it. It has become.

  As shown in FIG. 24A, the fixing plate 132 is fixed to the shank 2 by press-fitting the press-fitting portion 139 into the shank 2. The oscillating plate 133 slides the lower surface 141 on the support surface 140 from the front end side to the shank 2 side so that the error portion 143 is received between the support surface 140 and the flange portion 142, thereby fixing the fixed plate. 132 is assembled. At this time, the head of the bolt 146 of the lock mechanism 144 is fitted into a bolt receiving hole 149 formed in the fixing plate 132. Thereby, the bolt 146 is fixed to the fixed plate 132 and its rotation is restricted. As described above, in the assembled state of the main body 131, the support surface 140 of the fixed plate 132 and the lower surface 141 of the swinging plate 133 face each other up and down to form a facing portion, and the lock mechanism 144 is disposed in the facing portion. The Rukoto.

  In the spatula body 130 having such a main body 131, by rotating the dial 145, the dial 145 moves up and down along the axis of the bolt 146 according to the rotation direction, and the swing plate 133 is moved. However, it swings with respect to the fixed plate 132 with the contact portion between the collar 142 and the elastic portion 143 as a fulcrum.

  As shown in FIG. 24A, when the dial 145 is moved downward, the base end portion of the swing plate 133 in which the dial 145 is accommodated is moved downward. Therefore, as shown in FIG. 24A, in a state where the dial 145 contacts the head of the bolt 146 and reaches the lower limit position, the support surface 140 of the fixed plate 132 and the lower surface 141 of the swing plate 133 Become almost parallel. In this state, the thin blade 7 can be inserted / removed between the distal end portion of the fixed plate 132 and the distal end portion of the swinging plate 133.

  As shown in FIG. 24B, when the dial 145 is moved upward, the base end portion of the swing plate 133 in which the dial 145 is accommodated is moved upward, and the distal end portion of the swing plate 133 is moved downward. Rocks. Therefore, a pressing force according to the amount of movement of the dial 145 acts on the blade 7 and the tip of the fixed plate 132 from the tip of the swing plate 133, so that the blade 7 moves between the fixed plate 132 and the swing plate. 133 is firmly held between.

It is a top view of a scraper body concerning an embodiment of the present invention, and is a top view showing a scraper body with a knob. It is a side view of the scraper main body shown in FIG. It is a side view sectional view of the scraper main part shown along the arrow III-III direction shown in FIG. FIG. 4 is a partial cross-sectional view in plan view of the scraper body shown along the direction of arrows IV-IV shown in FIG. 3. It is explanatory drawing of the operation | work performed using the scraper main body shown in FIG. It is a top view of a scraper body concerning an embodiment of the present invention, and is a top view showing a scraper body equipped with the 1st vibration unit. It is a side view of the scraper main body shown in FIG. It is a disassembled perspective view of the attachment shown in FIG. FIG. 8 is a partial sectional view in plan view of the scraper main body shown along the direction of arrows IX-IX shown in FIG. 7. It is explanatory drawing of the operation | work performed using the scraper main body shown in FIG. It is a side view of a scraper body concerning an embodiment of the present invention, and is a side view showing a scraper body equipped with the 2nd vibration unit. It is a disassembled perspective view of the attachment shown in FIG. FIG. 12 is a partial sectional view in plan view of the scraper body shown along the arrow XIII-XIII direction shown in FIG. 11. It is a top view of the scraper main body which concerns on embodiment of this invention, Comprising: It is a top view which shows the scraper main body with which the 3rd vibration unit was mounted | worn. It is a side view of the scraper main body shown in FIG. It is a bottom view of the scraper main body shown in FIG. It is the rear view of the rotation apparatus seen in the arrow XVII direction shown in FIG. It is a top view of the scraper device concerning the present invention. It is a side view sectional view of the scraper device shown in XIX-XIX shown in FIG. It is a fragmentary top view which shows the modification of the scraper main body which concerns on embodiment of this invention. It is a partial side view of the scraper main body shown in FIG. It is a top view of the fixing plate of the spatula body shown in FIG. It is a bottom view of the rocking | swiveling plate of the spatula body shown in FIG. FIG. 21 is a side sectional view of the spatula body shown in the direction of arrows XXIV-XXIV shown in FIG. 20, in which (a) shows a state in which the dial of the lock mechanism is moved down, and (b) shows the dial of the lock mechanism up. It shows the state of being moved.

Explanation of symbols

1 Scraper body (scraper)
2 Shank 3 Spatula body 7 Blade 8 Fixed plate 9 Oscillating plate 18 Lock mechanism 23 Knob 30 Rotating device 34 Electric motor (rotation drive means)
35 Socket 36 Torque limiter 40 First vibration unit 41 Support unit 50 Attachment 51 Body 57 Mounting shaft 60 Shaft fixing portion 68 Second vibration unit 69 Attachment 70 Vibration generating portion 71 Screw member (fixing member)
72 Rotating member 73 Coil spring (biasing member)
80 Third vibration unit 81 Support unit 90 Attachment 91 Body 100 Scraper device 101 Vibration unit 110 Electric motor (rotation drive means)
120 Vibration Generator 121 Fixed Member 122 Rotating and Moving Member 123 Coil Spring (Biasing Member)
130 Spatula body 132 Fixed plate 133 Oscillating plate 144 Lock mechanism

Claims (9)

A scraper in which a spatula body is provided at one end of the shank,
A scraper, wherein the other end of the shank is configured to be detachable from a vibration unit that vibrates the scraper. The vibration unit is
An attachment detachably attached to the other end of the shank;
A rotating device detachably attached to the attachment;
A vibration generating unit provided in either one of the attachment and the rotation device,
The scraper according to claim 1, wherein the vibration generating unit is configured to vibrate the scraper based on a rotation output generated by the rotating device. The spatula body is
A fixing plate fixed to one end of the shank;
A swinging plate that is swingably attached to the fixed plate, and whose tip can be moved toward and away from the tip of the fixed plate;
A blade that is detachably attached to the tip of the fixed plate and the swing plate;
A lock mechanism that presses the tip of the swing plate against the tip of the fixed plate to restrict the swing of the swing plate;
The scraper according to claim 1 or 2, further comprising: An attachment for detachably attaching a rotating device to a scraper,
The attachment is detachably attached to the scraper, and the rotating device is detachably attached to the attachment.
In a state where the rotating device is mounted on the scraper via the attachment, the vibration generating unit provided in one of the attachment and the rotating device based on the rotation output generated by the rotating device. A scraper attachment characterized in that the scraper is configured to vibrate. In the case where the vibration generating unit is provided in the rotating device, the rotating device includes a rotation driving unit, and a socket coupled to the rotation driving unit and the vibration generating unit.
The vibration generating unit transmits a rotational output from the rotational driving means on the input side to a socket on the output side, and when the rotational load on the output side exceeds an allowable value, the input side is idled to cause the idle rotation. Based on a torque limiter for applying a blow to the output side,
The attachment includes a body attached to the scraper, an attachment shaft protruding from the body, and a shaft fixing portion provided on the body for fixing the attachment shaft to be non-rotatable, wherein the attachment shaft is the socket. The scraper attachment according to claim 4, wherein the scraper attachment is assembled with the rotating device. In the case where the vibration generating unit is provided in the attachment, the rotation device includes a rotation driving unit and a socket that is rotated based on a rotation output from the rotation driving unit,
The attachment has a body attached to the other end of the shank, and an attachment shaft protruding from the body, and the vibration generating unit is built in the body and rotates based on the rotation of the attachment shaft. Configured to give a blow in the direction,
The attachment of a scraper according to claim 4, wherein the attachment is assembled with the rotating device by connecting the mounting shaft to the socket. The vibration generating unit is rotatable integrally with the mounting shaft and provided so as to be movable in the axial direction on the mounting shaft, and adjacent to the rotational moving member coaxially with the mounting shaft. A non-rotatable fixing member that is arranged, and a biasing member that biases the rotationally moving member in the axial direction so that the side surface of the rotationally moving member abuts the side surface of the stationary member,
The scraper attachment according to claim 6, wherein a plurality of ratchet ridges arranged in a circumferential direction are formed on opposing side surfaces of the fixed member and the rotationally moving member. A scraper in which a spatula body is provided at one end of the shank;
A vibration unit that is provided at the other end of the shank and vibrates the scraper;
A scraper device comprising: The vibration unit includes a rotation driving unit and a vibration generating unit that vibrates the scraper based on a rotation output from the rotation driving unit,
The vibration generating unit is rotationally driven based on a rotational output from the rotational driving means and is provided so as to be movable in the direction of the rotational axis, and adjacent to the rotationally movable member on the rotational axis. A non-rotatable fixing member that is disposed in the direction, and an urging member that urges the rotationally moving member in an axial direction so as to abut the side surface of the rotationally moving member against the side surface of the stationary member,
The scraper device according to claim 8, wherein a plurality of ratchet ridges arranged in a circumferential direction are formed on opposing side surfaces of the fixed member and the rotationally moving member.

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