JP3156677U - Plasterer - Google Patents

Abstract

The present invention provides a plasterer that has a very simple operation for attaching and detaching a grip and a saddle plate and can freely change the position of the grip relative to the saddle plate. SOLUTION: A grip 2, a pair of sandwiching members 3 extending from the grip and having a tip end 4 pivotally supported so as to be openable and closable, and a grip and / or a pair of sandwiching members, It is a plasterer provided with a clamp mechanism 7 configured to be able to open and close the front end portion, and a flange plate 8 having a protruding strip portion 9 on the back surface that can hold the front end portion 4 of the pair of holding members 3. At this time, the cross-sectional shape of the sandwiching space in the closed state of the distal end portions of the pair of sandwiching members and the cross-sectional shape of the protruding portion of the rib plate are substantially T-shaped or substantially inverted trapezoidal and substantially the same. It is good to have. [Selection] Figure 3

Description

  The present invention relates to a plasterer and, more particularly, to a plasterer with a grip and a detachable plate.

  In plastering work, plasterers used for wall painting require various types of plaster plates that differ depending on the application, object, material, etc., and it is difficult to carry them to the construction site. For this reason, improvements in storage and transportability are required. In addition, plasterers are required to continue to use grips that have been worn and become familiar with their hands even when the board is worn out. In order to solve these problems, today, plasterers have been developed in which a grip and a slat are detachable, and a variety of slats can be used with a single grip.

  For example, (a) a detachable system in which a back metal disposed parallel to the grip is inserted and fixed to a back metal guide holding member disposed on the back surface of the base plate (a). For example, see JP-A-6-220988, etc.) and (b) an attachment / detachment method (for example, registered utility model No. 1) that fits and fixes a shaft portion protruding from the rear surface of the base plate into a hole of a joint portion protruding from the grip. 3051661 and the like have been developed.

  However, in the conventional plasterer with the detachable detachable plate, the detachable operation of the detachable plate consists of many complicated procedures, and it is necessary to use both hands. For this reason, for example, when performing plastering work while exchanging various types of slats using a single grip, the painting work must be interrupted each time the attachment / detachment operation is performed, resulting in reduced work efficiency and time. The problem is that there are many losses.

  In addition, the conventional plasterer has a problem that the attachment / detachment site has a narrow and complicated shape such as a hole or a screw groove, so that when cement or the like adheres and solidifies there, it is difficult to remove and becomes unusable. is doing.

  In addition, depending on the position of the grip on the board, there are different types of plasterers, such as the middle neck and the former head, and the former is suitable for painting large walls and the latter is suitable for fine painting. Function etc. will be different. Therefore, if the position of the grip with respect to the cover plate can be freely changed, it can be set by changing the application, function, etc., which is very effective for plasterers that require precise painting operation. In addition, a plurality of plasterers differing only in the position of the grip can share the grip, thereby significantly improving the storage property and the carrying property during carrying. However, the above-mentioned conventional plasterer is configured such that the cover plate is detachable with respect to the grip, but there is no device in which the position of the grip with respect to the cover plate is devised.

JP-A-6-220988 Registered Utility Model No. 3056161

  The present invention has been made in view of these inconveniences, and it is very easy and reliable to attach and detach the grip and the board, and there is a possibility that cement or mortar adheres to the attaching and detaching portion and becomes unusable. The object of the present invention is to provide a plasterer that is small and can freely set the position of the grip with respect to the saddle plate.

The idea made to solve the above problems is
Grip,
A pair of clamping members that extend from the grip and whose tip is pivotally supported to be openable and closable,
A clamp mechanism that is disposed on the grip and / or the pair of sandwiching members, and that is configured to open and close the front ends of the pair of sandwiching members;
A plasterer provided with a rib plate on the back surface that has a ridge that can be clamped by the front ends of a pair of clamping members.

  The plasterer is a simple system in which the grip and the saddle plate are attached and detached by holding and releasing them with a pair of holding members, and the holding and releasing thereof are controlled by the clamp mechanism. Thereby, the plasterer can easily attach and detach the grip and the slats with a simple operation. In addition, the plasterer can be firmly engaged with the grip and the saddle plate by including a clamp mechanism having a spring member.

  In addition, as a result of adopting a sandwiching method using a pair of sandwiching members, the plasterer has a simple shape of the contact surface of the attachment / detachment portion and is opened in two directions, so that cement, mortar, etc. are adhered and solidified. However, the removal is easy, and there is little fear that it will become unusable like a conventional removable plasterer.

  When the cross-sectional shape of the clamping space in the closed state of the tip end portions of the pair of clamping members and the cross-sectional shape of the protruding strips of the rib plate are substantially T-shaped or substantially inverted trapezoidal and are formed substantially the same. Good. According to the plasterer, since the attachment / detachment portion has such a shape, the engagement between the grip and the board is further strengthened, and there is no play, and the possibility that the board is detached from the grip during use is extremely small. It can be a plasterer as a complete unit.

  The ratio (A / B) of the longitudinal length (A) of the ridge portion of the rib plate to the longitudinal length (B) of the rib plate is 0.3 or more, and the ratio of the tip ends of the pair of clamping members The ratio (A / C) of the length (A) in the longitudinal direction of the ridges of the rib plate to the length (C) in the longitudinal direction is preferably 1.5 or more. According to the plasterer, the position of the grip can be freely changed within a set range with respect to the board. Thereby, it can be set as the plasterer with various uses and a function by changing the position of a grip with respect to one sheet board.

The clamp mechanism is
A spring member for urging the distal ends of the pair of clamping members in the opening direction;
An operating rod configured to press at least one of the rear ends of the pair of clamping members in the closing direction of the front ends of the pair of clamping members;
It is preferable to have a locking member configured to be able to lock the control stick in a state where the rear end portions of the pair of clamping members are pressed with the operation stick. According to the plasterer, by having such a clamping mechanism, it is possible to perform the attaching / detaching operation very quickly with only one finger while holding the grip. Moreover, since such a clamp mechanism can be incorporated in the inside of a grip, it can be set as a removable plasterer with a compact structure.

The clamping mechanism is
A spring member for urging the distal ends of the pair of clamping members in the closing direction;
It is also possible to have an operating rod configured to press at least one of the rear end portions of the pair of clamping members in the opening direction of the front end portions of the pair of clamping members. According to the plasterer, by having such a clamping mechanism, it is possible to perform the attaching and detaching operation with a very simple operation and a very quick operation with only one finger while holding the grip as described above. It can also be a removable plasterer with a compact structure.

  Therefore, according to the plasterer and a plurality of types of plasterboards that can be exchanged in the plasterer, various uses and functions can be exhibited by replacing the plasterboard with multiple types of plasterboards using one grip. it can. In addition, since the plasterer shares a grip, it is excellent in storage and transportability when carried.

  As explained above, according to the plasterer of the present invention, it is excellent in the detachability operability between the grip and the board. As a result, according to the plasterer, it is possible to meet today's demands to continue to use grips that have been improved in storage and transportability, and have become familiar with hands after use.

1 is a plan view of a plasterer according to an embodiment of the present invention. It is longitudinal direction sectional drawing (cut line AA) of the plasterer of FIG. It is width direction sectional drawing (cut line BB) of the plasterer of FIG. FIG. 2 is a longitudinal sectional view showing a state where a plaster board is separated from the plasterer of FIG. 1. FIG. 2 is a cross-sectional view in the width direction showing a state where the plaster board of FIG. 1 is separated. It is sectional drawing of the width direction of the plasterer according to another embodiment of the present invention.

  Hereinafter, an embodiment of the plasterer of the present invention will be described in detail with reference to the drawings as appropriate.

  1 to 5 mainly includes a grip 2, a pair of clamping members 3 and 3 extending from the grip 2, a clamp mechanism A7 disposed on the grip 2, and a saddle plate 8. I have.

  The grip 2 has a substantially cylindrical outer shape, and has a cavity for incorporating the clamp mechanism A7 therein. The cavity has an opening having a substantially rectangular cross section for inserting the pair of clamping members 3 and 3 on the lower surface of the grip 2. The cavity has a pair of substantially rectangular openings on the upper surface of the grip 2 for projecting one ends of the operating rod 11 and the locking member 16 constituting the clamp mechanism A7, and the clamp mechanism A 7 can be operated on the upper surface of the grip 2.

  The pair of sandwiching members 3, 3 has a substantially inverted T-shape when viewed from the side, are opposed to each other, and are pivotally supported by the pivotal support portion 6 so as to be opened and closed. These are inserted through the opening in the lower part of the grip 2 and are arranged so that the longitudinal directions of the tip portions 4 and 4 of the pair of clamping members 3 and 3 are parallel to the longitudinal direction of the grip 2. Yes. Further, one clamping member 3 is fixed to the lower part of the grip 2 at the rear end portion 5, and the distal end portions 4, 4 of the pair of clamping members 3, 3 are moved by rotating the other clamping member 3. It can be opened and closed.

  The gutter plate 8 is a plate-like body made of metal or plastic. The planar shape of the saddle plate 8 is not particularly limited, and is appropriately set according to the use, function, etc. of the plasterer 1. Further, the cross-sectional shape in the width direction of the cover plate 8 is not limited to a planar shape, and may be, for example, a U shape or a V shape.

  The saddle plate 8 has, on the back surface thereof, a ridge portion 9 on which the tip portions 4 and 4 of the pair of sandwiching members 3 and 3 can be sandwiched. Here, the protruding line portion 9 indicates only a portion where the tip portions 4 and 4 can be clamped, and does not include, for example, a locking portion disposed at one or both ends of the clampable portion.

  The shape of the ridge portion 9 is appropriately set according to the shape of the facing surface of the tip portions 4 and 4, but the clamping space in the closed state of the tip portions 4 and 4 (each facing surface of the tip portions 4 and 4 It is preferable that the cross-sectional shape of the space formed between and the cross-sectional shape of the protruding portion 9 of the rib plate 8 be formed substantially the same. By adopting the same shape, the opposing surfaces of the tip portions 4 and 4 and the surface of the ridge portion 9 can be in close contact with each other without gaps, so that the grip 2 and the saddle plate 8 can be firmly engaged without play. it can. Further, it is more preferable that the same shape is formed in a substantially T shape or a substantially inverted trapezoid. Since the same shape has such a shape, the engagement force between the grip 2 and the saddle plate 8 is further increased. Therefore, there is very little possibility that the saddle plate will be detached from the grip during use. It can be a plasterer as a thing.

  The size of the ridge portion 9 is not particularly limited, and is appropriately set according to the size, weight, and the like of the roof plate 8. For example, the ratio (A / C) of the longitudinal length (A) of the ridge 9 to the longitudinal length (C) of the tip portions 4 and 4 of the pair of clamping members 3 and 3 is 1.5 or more. preferable. By setting such a length, the position of the grip 2 with respect to the plate 8 can be continuously changed. Moreover, as ratio (A / B) of the longitudinal direction length (A) of the protruding item | line part 9 with respect to the longitudinal direction length (B) of the collar board 8, 0.3 or more are preferable. By setting such a length, the position of the grip 2 with respect to the base plate 8 can be continuously and freely changed within the set range, and various uses and functions that are manifested by the position of the grip 2 being different. A plasterer 1 having The ratio (A / B) of the longitudinal length (A) of the ridges 9 to the longitudinal length (B) of the rib plate 8 is particularly preferably 0.5 or more.

  The position at which the ridge portion 9 is disposed on the back surface of the saddle plate 8 is appropriately set according to the application, function, etc. of the plasterer 1. For example, it is set to the rear side on the center of the back surface or the vertical center line of the back surface.

  The clamp mechanism A7 is provided to open and close the tip portions 4 and 4 of the pair of clamping members 3 and 3 and to fix them in the closed state. The clamp mechanism A7 mainly includes a spring member 10, an operating rod 11, and a locking member 16.

  The spring member 10 is a compression coil spring and is disposed so as to spring between the rear end portion 5 of the other holding member 3 that is not fixed to the grip 2 and the inner wall side surface of the grip 2. Accordingly, the tip portions 4 and 4 of the pair of sandwiching members 3 and 3 are urged in the opening direction.

  The operating rod 11 has a substantially plate shape. The operating rod 11 has an upper end protruding from an opening formed in the upper surface of the grip 2 to form an operating portion a13, and a lower end is disposed between the rear end portions 5 and 5 of the pair of clamping members 3 and 3. Thus, the pressing portion 12 is formed, and is thereby arranged to be freely movable up and down. When the operating rod 11 is displaced downward, the pressing portion 12 presses the opposing surfaces of the rear end portions 5 and 5 of the pair of sandwiching members 3 and 3, and the tip portions 4 and 4 of the pair of sandwiching members 3 and 3 are closed. It is turned in the direction. The operating rod 11 has a substantially rectangular locking groove 14 for engaging the locking member 16 on its side surface.

  The first urging member 15 is a compression coil spring, and is disposed so as to be elastic between the lower portion of the operating rod 11 and the inner wall bottom surface of the grip 2. Thereby, the operating rod 11 is urged upward.

  The locking member 16 has a substantially L shape. The locking member 16 has a locking end 17, which is one end of the locking member 16, detachably inserted into the locking groove 14 of the operating rod 11, and the other end protruding from an opening formed in the upper part of the grip 2. Thus, an operation part b18 is formed, which is arranged freely in the front-rear direction. When the locking end 17 is inserted into the locking groove 14 of the operating rod 11, the operating rod 11 is in a state where the pressing portion 12 presses the opposing surfaces of the rear end portions 5, 5 of the pair of clamping members 3, 3. Fixed. Thus, the tip portions 4 and 4 of the pair of sandwiching members 3 and 3 are configured to be fixed in a closed state.

  The second urging member 19 is a compression coil spring, and is disposed so as to spring between the front side surface of the locking member 16 and the front surface of the inner wall of the grip 2. As a result, the locking member 16 is urged rearward, that is, in a direction in which the locking end 17 is inserted into the locking groove 14 of the operating rod 11.

  Next, the attaching / detaching operation of the plasterer 1 configured as described above will be described. First, an operation for engaging the separated grip 2 and the saddle plate 8 will be described.

  In a state where the opposed surfaces of the tip end portions 4, 4 in the open state of the pair of clamping members 3, 3 disposed on the grip 2 are in contact with the convex strip portion 9 of the flange plate 8, 11 operation part a13 is pushed down with one thumb. At this time, the operating rod 11 is displaced downward against the urging force of the first urging member 15, and the pressing portion 12, which is the lower end thereof, faces the pair of clamping members 3, 3 and the rear end portions 5, 5. Press. In response to this, the tip portions 4, 4 rotate against the urging force of the spring member 10 to the closed state and pinch the protruding strip portion 9 of the flange plate 8. At this time, when the locking end 17 of the locking member 16 biased in the insertion direction by the second biasing member 19 is inserted into the locking groove 14 of the operating rod 11, the operating rod 11 is displaced downward. Therefore, the tip portions 4 and 4 are fixed in a closed state with the protruding portion 9 sandwiched therebetween. In this way, the grip 2 and the saddle plate 8 are firmly engaged, and an integrated plasterer 1 with no play is obtained.

  Next, an operation for separating the grip 2 and the gutter plate 8 of the plasterer 1 integrated with each other will be described.

  The operation part b18 of the locking member 16 moving rearward is moved to the front side with one thumb. At this time, the locking end 17 is ejected from the locking groove 14 of the operating rod 11, and the operating rod 11 is displaced upward by the biasing force of the first biasing member 15, and the pressing portion 12 is a pair of clamping members 3, 3 is separated from the rear end portions 5 and 5. In response to this, the closed state of the distal end portions 4 and 4 of the pair of sandwiching members 3 and 3 is released, and the distal end portions 4 and 4 are rotated to the open state by the urging force of the spring member 10. The tip portions 4 and 4 and the protruding strip portion 9 of the flange plate 8 are separated from each other. In this way, the grip 2 and the saddle plate 8 can be separated.

  As described above, according to the plasterer 1, the grip 2, the saddle plate 8, and the like can be obtained by a very simple operation of pushing or sliding the operation unit once with only one thumb while holding the grip 2. Can be attached and detached.

  6 mainly includes a grip 2, a pair of clamping members 3 and 3 extending from the grip 2, a clamp mechanism B21 disposed on the grip 2, and a saddle plate 8. . The plasterer 20 differs from the plasterer 1 only in the configuration of the clamping mechanism. Since the grip 2, the pair of clamping members 3, 3, the flange plate 8, and the protruding strip portion 9 are the same as the plaster rod 1, the same numbers are given and the description is omitted. In the plasterer 20, the cavity inside the grip 2 has an opening having a substantially rectangular cross section for inserting the pair of sandwiching members 3 and 3 on the lower surface of the grip 2. The cavity has an opening having a substantially rectangular cross section on the side surface of the grip 2 for projecting one end of the operating rod 11 constituting the clamp mechanism B21.

  The clamp mechanism B21 is provided to open and close the tip portions 4 and 4 of the pair of sandwiching members 3 and 3 and to fix them in the closed state. The clamp mechanism B21 mainly includes a spring member 10 and an operating rod 11.

  The spring member 10 is a compression coil spring, and is disposed so as to be elastic between the opposing surfaces of the rear end portions 5 and 5 of the pair of clamping members 3 and 3. Thereby, the said front-end | tip parts 4 and 4 are urged | biased by the closing direction.

  The operating rod 11 has a substantially prismatic shape. One end of the operation rod 11 protrudes from an opening formed in the side surface of the grip 2 to form an operation portion a13, and the pressing portion 12 which is the other end is not fixed to the lower portion of the grip 2. The rear end portion 5 of the other clamping member 3 is disposed so as to be able to be pressed, and is thereby disposed freely in the left-right direction. When the operating rod 11 is displaced in the horizontal direction, the pressing portion 12 presses the rear end portion 5 of one clamping member 3 and resists the urging force of the spring member 10, and the distal ends 4 of the pair of clamping members 3, 3. 4 is rotated in the open state.

  Next, the attaching / detaching operation of the plasterer 20 configured as described above will be described. First, an operation of clamping the protruding strip portion 9 of the separated saddle plate 8 with the tip portions 4 and 4 of the pair of sandwiching members 3 and 3 and engaging the saddle plate 8 and the grip 2 will be described.

  The operation part a18 protruding from the side surface of the grip 2 is pressed with the thumb of one hand, and the tip parts 4 and 4 of the pair of clamping members 3 and 3 disposed on the grip 2 are opened. Then, after disposing the opposing surfaces of the tip portions 4 and 4 so as to come into contact with the surface of the ridge portion 9 of the plate 8, the pressing of the operation portion a18 is stopped. By doing so, the tip portions 4 and 4 are in a closed state, and the ridge portion 9 is sandwiched. At this time, the clamping state is fixed by the biasing force of the spring member 10 that biases the tip portions 4 and 4 in the closing direction. In this way, the grip 2 and the saddle plate 8 can be engaged.

  Next, an operation for separating the grip 2 and the saddle plate 8 of the integrated plasterer 20 will be described.

  In a state where the tip portions 4 and 4 of the pair of sandwiching members 3 and 3 sandwich the protruding strip portion 9 of the saddle plate 8, the operation portion a13 projecting from the side surface of the grip 2 is pressed with one thumb. At this time, the operating rod 11 is displaced in the horizontal direction against the biasing force of the spring member 10, and the rear end of the holding member 3 that is not fixed to the lower portion of the grip 2 is the pressing portion 12 of the operating rod 11. Since the portion 5 is pressed, the tip portions 4 and 4 are opened. Then, the grip 2 is moved while the operation portion a13 is pressed, and the opposing surface of the tip portions 4 and 4 and the protruding strip portion 9 of the flange plate 8 are separated from each other, and then the operation portion a13 is stopped from being pressed. The tip portions 4 and 4 are closed. In this way, the grip 2 and the saddle plate 8 can be separated.

  As described above, according to the plasterer 20, the grip 2 and the saddle plate 8 can be attached and detached by a very simple operation of pressing or releasing the operation portion a13 with only one thumb while holding the grip 2. It can be carried out.

  The plasterer of the present invention is not limited to the above embodiment. For example, the clamp mechanism may be disposed on the grip and the pair of sandwiching members, or disposed only on the pair of sandwiching members. May be. In this way, the plasterer with the clamp mechanism disposed only on the pair of clamping members does not have the clamp mechanism built into the grip and is inferior in compactness, but does not require the internal structure of the grip and is easily manufactured. be able to.

  Moreover, you may arrange | position so that it may urge | bias in the same direction using a tension spring instead of using a compression spring as a spring member. Further, as the first urging member and the second urging member, a tension spring may be used instead of the compression spring.

  Furthermore, the direction in which the pair of sandwiching members are arranged on the grip is such that the longitudinal direction of the tip end portions of the pair of sandwiching members does not have to be parallel to the longitudinal direction of the grip. It is appropriately selected according to the direction of moving the plasterer. In that case, the direction in which the ridge portion is disposed on the back surface of the plate is set so that the longitudinal direction of the ridge portion is parallel to the longitudinal direction of the tip portion.

  Further, the spring member that biases the front end portions of the pair of sandwiching members in the closing direction is not limited to the spring member that is disposed between the opposing surfaces of the rear end portions of the pair of sandwiching members described above. It is possible to use a torsion spring in which the coil portion is disposed on the shaft support portion of the pair of sandwiching members and both end portions are disposed along the inner surfaces of the rear end side of the pair of sandwiching members. Can do.

  Furthermore, the outer surface shape of the grip 2 can be a shape that fits a human finger. By adopting such a shape of the grip 2, it is possible to make a plasterer that is easy to grip and very easy to work with.

  Then, shielding members may be provided in the vicinity of various gaps existing in the plasterer. By disposing such a shielding member, cement, mortar, sand or the like is prevented from entering the inside of the grip 2 from the gap, or the cement or the like enters the gap to fix the movable part. Or difficult to operate. Accordingly, it is possible to provide a highly durable plasterer that can be used for a long time even in an actual use environment. As such a clearance, as shown in FIG. 5, for example, a clearance 22 between a pair of sandwiching members 3 and 3 outside the grip 2, and a clearance 23 between the pivotable sandwiching member 3 and the grip 2. Etc. The shape and material of the shielding member and the position where the shielding member is disposed are not particularly limited as long as the shielding member can be prevented from entering a gap such as cement. Specifically, for the gap 22 between the pair of sandwiching members 3, 3, there is a plate-like member that protrudes from the lower surface of the grip 2 and is brought close to the front surface portion and the rear surface portion of the pair of sandwiching members 3, 3. Used. Further, for the clearance 23 between the rotatable holding member 3 and the grip 2, for example, a plate-like member made of a soft material such as rubber or a projection made of a soft material on the surface of the hard plate is used. By adopting a member or the like and projecting from the grip 2 or the rotatable holding member 3, the shielding member is deformed in accordance with the movement of the rotatable holding member 3 of the plasterer. , Cement and the like can be effectively prevented from entering from the gap 23.

  As described above, the present invention can provide a plasterer with excellent detachability operability between the grip and the saddle plate. In particular, it is suitable for plastering work that requires many types of plasterers because it can be replaced easily and quickly, and it has excellent storage and transportability.

DESCRIPTION OF SYMBOLS 1 Plasterer 2 Grip 3 Clamping member 4 Front end part 5 Rear end part 6 Shaft support part 7 Clamp mechanism A
8 ridge plate 9 ridge portion 10 spring member 11 operation rod 12 pressing portion 13 operation portion a
14 Locking groove 15 First biasing member 16 Locking member 17 Locking end 18 Operation part b
19 Second urging member 20 Plasterer 21 Clamp mechanism B
22 Clearance between a pair of clamping members 23 Clearance between a rotatable clamping member and a grip

Claims (6)

Grip,
A pair of clamping members that extend from the grip and whose tip is pivotally supported to be openable and closable,
A clamp mechanism that is disposed on the grip and / or the pair of sandwiching members, and that is configured to open and close the front ends of the pair of sandwiching members;
A plastering board comprising: a rib plate having a ridge portion on the back surface that can hold the tip portions of a pair of clamping members.   The cross-sectional shape of the sandwiching space in the closed state of the tip portions of the pair of sandwiching members and the cross-sectional shape of the protruding strips of the plate are substantially T-shaped or substantially inverted trapezoidal and substantially the same. The plasterer according to Item 1.   The ratio (A / B) of the longitudinal length (A) of the ribs of the rib plate to the vertical length (B) of the rib plate is 0.3 or more, and the tip portions of the pair of clamping members 3. The plasterer according to claim 1, wherein a ratio (A / C) of a longitudinal length (A) of the rib portion of the rib plate to a longitudinal length (C) of the base plate is 1.5 or more. The clamping mechanism is
A spring member for urging the distal ends of the pair of clamping members in the opening direction;
An operating rod configured to press at least one of the rear ends of the pair of clamping members in the closing direction of the front ends of the pair of clamping members;
The plasterer according to claim 1, 2 or 3, further comprising: a locking member configured to be able to lock the operating rod in a state where the rear end portions of the pair of clamping members are pressed by the operating rod. . The clamping mechanism is
A spring member for urging the distal ends of the pair of clamping members in the closing direction;
The plasterer according to claim 1, 2 or 3, further comprising an operating rod configured to press at least one of the rear end portions of the pair of clamping members in the opening direction of the front end portions of the pair of clamping members. .   The plastering machine according to any one of claims 1 to 5, comprising a plurality of types of the board.

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