JP7445440B2 - Workbench bracket and workbench - Google Patents

Description

The present invention relates to a workbench bracket used for fixing a power tool such as a tabletop circular saw to a workbench, and a workbench using the workbench bracket.

When using a power tool such as a tabletop circular saw, a workbench is sometimes used to improve work efficiency. For example, as disclosed in Patent Document 1, this workbench includes a long plate-shaped pedestal and legs that support the pedestal, and the tabletop circular saw machine is slidable in the longitudinal direction on the top surface of the pedestal. It is fixed to the pedestal via a movable platform (workbench bracket) that can be fixed at any position. This workbench bracket has a pair of slide bases that can slide on the top surface of the cradle, and a frame that is connected perpendicularly to the cradle on each slide base and to which a tabletop circular saw is fixed with bolts. The slide base can be locked at any slide position by rotating the lever part of the lock lever provided on the top surface and engaging the lock plate provided on the bottom surface with the lock groove formed on the top surface of the cradle. ing.

Japanese Patent Application Publication No. 2016-64493

In the above-mentioned conventional workbench bracket, when sliding the locked cradle or attaching/detaching it to/from the pedestal, it is necessary to rotate the lever part and slide or lift the slide base (when installing the cradle, It was necessary to perform different operations in order (the operation of placing the bracket on the bracket), and the operations related to adjusting the position of the bracket and attaching and detaching it to the cradle could not be performed smoothly. Furthermore, since the lever portion protrudes from the top surface of the bracket, there is a risk that it will get in the way of work.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a workbench bracket and a workbench that can be smoothly attached and removed on a pedestal and have excellent workability, as well as secure locking.
Another object of the present invention is to provide a bracket for a workbench and a workbench that can smoothly adjust the position on the pedestal and perform attachment/detachment work, and are excellent in workability.

In order to achieve the above object, a first invention provides a workpiece for fixing a power tool by being provided on a cradle of a workbench having a long plate-shaped cradle and legs for supporting the cradle. A table bracket,
a pedestal that is placed on the pedestal and to which the power tool is fixed;
Two locking parts are provided on the pedestal at positions that sandwich the pedestal from both sides in a horizontal direction perpendicular to the longitudinal direction of the pedestal, and can be respectively locked to locked parts provided on both sides of the pedestal. ,
At least one of the two locking parts includes a first lever and a second lever, each of which has an end rotatably connected to the pedestal and which can be operated to engage and disengage from the locked part in the same rotational direction. , the other locking portion not formed by the first lever and the second lever is removable from the locked portion;
The respective rotation centers of the first lever and the second lever are disposed horizontally shifted, and the first lever has a locked portion only when the first lever is independently unlocked. a contact portion that contacts the second lever in a locked state;
When the first lever and the second lever are both locked to the locked part and the first lever is operated to release the lock alone, the first lever and the second lever are both locked by the contact of the contact part. The unlocking operation becomes impossible and the locked state to the locked part is maintained,
When the first lever and the second lever are both locked to the locked part, even if you operate the second lever alone to release the lock, the first lever will not remain locked to the locked part. On the other hand,
When both the first lever and the second lever are unlocked, the second lever, which does not come into contact with the abutting part due to the misalignment of the center of rotation, rotates together with the first lever and releases the lock from the locked part. The pedestal is removable from the pedestal .
Another aspect of the first invention is that in the above configuration, the contact portion rotationally urges the second lever in the direction of locking the locked portion as the first lever rotates. .
Another aspect of the first invention is that in the above structure, the contact portion is a flat portion that assumes an inclined posture as the first lever rotates and biases the second lever to rotate in the locking direction. Features.
In order to achieve the above-mentioned other object, the second invention provides a device for fixing a power tool by being provided on a cradle of a workbench having a long plate-shaped cradle and legs for supporting the cradle. A bracket for a workbench,
a pedestal that is placed on the pedestal and to which the power tool is fixed;
Two locking parts are provided on the pedestal at positions that sandwich the pedestal from both sides in a horizontal direction perpendicular to the longitudinal direction of the pedestal, and can be respectively locked to locked parts provided on both sides of the pedestal. ,
At least one of the two locking parts includes a first lever and a second lever, each of which has an end rotatably connected to the pedestal and which can be operated to engage and disengage from the locked part in the same rotational direction. , the other locking portion not formed by the first lever and the second lever is removable from the locked portion;
The centers of rotation of the first lever and the second lever are arranged horizontally offset, and the first lever and the second lever are arranged so that they come into contact with each other when only the first lever is unlocked. A stopper is provided respectively to restrict mutual rotation.
When the first lever and the second lever are both locked to the locked part and only the first lever is operated to release the lock, the first lever and the second lever are released from the cradle due to the contact between the stoppers. Rotation is restricted at a position that prevents removal of the pedestal, allowing the pedestal to move along the pedestal ,
Even if you operate the second lever alone to release the lock while both the first lever and the second lever are locked to the locked part, the locked state of the first lever to the locked part will not be maintained. On the other hand,
When both the first lever and the second lever are operated to release the lock, the first lever and the second lever, which do not come into contact with each other due to a shift in their rotation centers, rotate together and lock the locked part. It is characterized in that it can be released and the pedestal can be removed from the pedestal.
Another aspect of the second invention is characterized in that, in the above structure, the second lever is housed in a horizontal slit provided in the first lever.
In order to achieve the above-mentioned other object, a third invention provides a device for fixing a power tool by being provided on a cradle of a workbench having a long plate-shaped cradle and legs for supporting the cradle. A bracket for a workbench,
a pedestal that is placed on the pedestal and to which the power tool is fixed;
Two locking parts are provided on the pedestal at positions that sandwich the pedestal from both sides in a horizontal direction perpendicular to the longitudinal direction of the pedestal, and can be respectively locked to locked parts provided on both sides of the pedestal. ,
At least one of the two locking parts includes a first lever whose end is rotatably connected to the pedestal and can be operated to engage and release the locked part, and a first lever whose end is rotatably connected to the pedestal and can be operated to engage and release the locked part. and a second lever capable of regulating the movement range of the first lever, and the other locking part not formed by the first lever and the second lever is removable from the locked part,
The respective rotation centers of the first lever and the second lever are disposed horizontally shifted, and when the first lever is locked to the locked part, the first lever can be moved independently from the locked part. When the first lever is rotated in the unlocking direction, the first lever comes into contact with the second lever, and rotation is restricted to a position where the pedestal is prevented from being removed from the cradle.
Even if the second lever is rotated independently in the direction of unlocking the first lever while the first lever is locked to the locked part, the locked state of the first lever to the locked part will not be changed. While maintained,
When the second lever is rotated together with the first lever in the lock release direction, the first lever releases the lock from the locked part without contacting the second lever due to the shift in the center of rotation, and receives the pedestal . It is characterized by being removable from the stand.
In order to achieve each of the above-mentioned objects, a fourth invention provides a workbench, comprising: a long plate-shaped pedestal to which a power tool is fixed; and legs supporting the pedestal; , the workbench bracket according to any one of the first to third inventions is removably provided, and a power tool can be fixed to the workbench bracket.

According to the first and fourth inventions, attachment and detachment work on the pedestal can be performed smoothly and workability is excellent, and reliable locking is also possible.
According to the second to fourth inventions, position adjustment on the pedestal and attachment/detachment work can be performed smoothly, resulting in excellent workability.

FIG. 3 is a perspective view of the workbench of Form 1. FIG. 2 is an enlarged rear view of the left side of the tabletop circular saw machine of Form 1. 3 is a sectional view taken along line AA in FIG. 2. FIG. FIG. 2 is a perspective view from above of the workbench bracket of Form 1. FIG. 2 is a perspective view from below of the workbench bracket of Form 1. FIG. 2 is an exploded perspective view of the workbench bracket of Form 1. 3 is a sectional view taken along line BB in FIG. 2. FIG. (A) is an enlarged cross-sectional view taken along the line CC in FIG. 7, and (B) is an enlarged cross-sectional view taken along the line DD. This is an explanatory diagram showing the operation of the first and second levers of the first embodiment, (A) is a state in which only the first lever is rotated, and (B) is an initial state in which both the first and second levers are rotated. , (C) respectively show the state in which both the first and second levers are gripped. FIGS. 2A and 2B are explanatory diagrams of the first lever of the second embodiment, in which (A) shows a perspective view from the front, (B) shows a left side surface, (C) shows a front view, and (D) shows a cross section taken along line EE. These are explanatory views of the second lever of the second embodiment, in which (A) is a perspective view from the rear, (B) is a left side view, and (C) is a front view. (A) is the state in which the first and second levers are locked to the locked part, (B) is the state in which only the first lever is rotated, and (C) is the state in which both the first and second levers are rotated. The initial states for each case are shown below. The state in which the first and second levers are re-locked to the locked portion is shown.

Embodiments of the present invention will be described below based on the drawings.
[Form 1]
FIG. 1 is a perspective view showing an example of a workbench to which a table-top circular saw is fixed as a power tool, and FIG. 2 is an enlarged rear view of the left side portion of the table-top circular saw.
The workbench 1 has a pedestal 2 and legs 3, 3, etc. that horizontally support the pedestal 2 at a predetermined height. The tabletop circular saw machine 60 can be fixed.
The pedestal 2 includes a long plate-shaped pedestal main body 4 and a pair of auxiliary bars 5, 5 connected at both ends of the pedestal main body 4 in the longitudinal direction so as to be removable and removable in the same direction. As shown in FIG. 3, the stand main body 4 has a substantially rectangular outer diameter in cross section, and a lock groove 6 is formed in the center of the upper surface in the width direction over the entire length. Also, side grooves 7, 7 are formed over the entire length. By means of the side grooves 7, 7, a pair of locked parts 8A, 8B are formed over the entire length of the upper portions of both front and rear edges of the stand main body 4, and the upper surfaces thereof are sloped surfaces that descend toward the front and back outwards. There is.

The auxiliary bar 5 has a rectangular cylindrical shape that is slidably inserted loosely on an extension of the base body 4, and can be fixed at any sliding position. A support rod 10 is inserted into the tip of each auxiliary bar 5 so as to be movable in the vertical direction, and can be fixed at any vertical position. Here, a support roller 11 whose axis is in the front-rear direction is provided at the upper end of the right support rod 10, and an inverted L-shaped support plate 12 is provided at the upper end of the left support rod 10 in the front-rear direction. There is. The heights of the support roller 11 and the support plate 12 can be fixed to match the upper surface of the base 61 of the tabletop circular saw machine 60, respectively.

The legs 3 are each connected in pairs to connection plates 13 that are U-shaped in plan view and fixed to the lower surface of both longitudinal ends of the base body 4 . Here, the upper end of each leg 3 is rotatably connected to the front and rear upper ends of the connecting plate 13 by a shaft 14, and a button protrusion 15 that is biased to protrude below is connected to the lower and inner sides of the connecting plate 13. By fitting it into either of the stopper holes 16, 16, it can be fixed in either the pulled out position shown in FIG. 1 or the inward folded position. A handle 17 is provided at the center of the lower surface of the platform body 4 for turning over and transporting the workbench 1 with each leg 3 folded.
Furthermore, a handle 18 is also provided on the outer surface of the right side connecting plate 13, and a pair of wheels 19, 19 are provided on the outer surface of the left side connecting plate 13. Therefore, by gripping the handle 18 with each leg 3 folded and grounding the wheels 19, the workbench 1 can be easily transported without lifting the entire workbench.

As shown in FIGS. 4 to 6, the workbench bracket 20 (hereinafter simply referred to as "bracket") is fixed to the upper pedestal 21 to which the tabletop circular saw machine 60 is fixed, and to the lower surface of the upper pedestal 21. The lower pedestal 22 is detachably attached to the pedestal main body 4. The left and right brackets 20, 20 have the same structure except that the lower pedestal 22 is symmetrical. 4 to 6 show the bracket 20 on the right side.
First, the upper pedestal 21 has a cylindrical shape with a rectangular cross section, and has an upper slit 23 and a lower slit 24 formed at the top and bottom over the entire length, and a middle plate 25 in the center that partitions the inside of the upper pedestal 21 into upper and lower parts. It is provided along the entire length. As shown in FIG. 3, the middle plate 25 has a pair of long holes 26, 26 in the longitudinal direction, which overlap the upper and lower slits 23, 24 in a plan view, near both ends. A pair of lock nuts 27, 27 are provided in the long holes 26, 26 so as to be movable along the long hole 26 with rotation restricted within the long holes 26. The mounting bolts 28, 28 of the saw machine 60 can be screwed in from above. On the outside of each lock nut 27 and on the lower surface of the upper pedestal 21, rubber feet 29, 29 are fixed by bolts 30, 30 passing through the lower slit 24 from above.

Next, the lower pedestal 22 is formed by bending the side edges in the longitudinal direction and connecting a U-shaped connecting plate 31 and a locking plate 32, which have different lengths in the front-back direction, in the left-right direction. The shorter connecting plate 31 is oriented with the bent side edge facing down, and is in contact with the center of the longitudinal direction on the lower surface of the upper pedestal 21, and the bolts 33, 33 and nuts 34 are inserted through the lower slit 24. It is connected to the upper pedestal 21 by 34.
The longer locking plate 32 is arranged adjacent to the connecting plate 31 at a position where its front end is aligned with the front end of the connecting plate 31 and its rear end protrudes rearward beyond the connecting plate 31. It is connected to the side plates of the connecting plate 31 by a pair of front and rear screws 36A, 36B and nuts 37, 37 passing through the left and right side plates 35,35. At the front end of the locking plate 32, between the side plates 35, 35, there is a locking part 38A that can be locked to the locked part 8A on the front side of the stand main body 4, with the claw part 39 at the tip facing backward. It is fixed by a screw 36A on the front side. The front lower portions of the side plates 35, 35 are formed to match the shape of the locking portion 38A and the claw portion 39 in side view.

On the other hand, on the rear end side of the locking plate 32, a locking portion 38B consisting of two first levers 41 and a second lever 42 is provided.
First, the first lever 41 has an L-shape when viewed from the side, and its intermediate portion is rotatably connected by a screw 36B at a position slightly rearward of the center of the locking plate 32 in the front-rear direction. The rear end of the first lever 41 is biased downward away from the locking plate 32 by a coil spring 43 provided between the first lever 41 and the rear end of the locking plate 32 . As shown in FIG. 7, a protrusion 44 protrudes toward the locking plate 32 and comes into contact with the lower surface of the locking plate 32 at the intermediate portion of the first lever 41 to restrict rotation due to the urging force of the coil spring 43. It is set up.
In addition, as shown in FIG. 8A, the front end of the first lever 41 is capable of being locked from below to a locked portion 8B on the rear side of the base body 4 at a rotation restriction position by a protrusion 44. A first claw portion 45 is formed. Furthermore, in the center of the first lever 41 in the left-right direction, a slit 46 is formed in the front-rear direction to divide the first lever 41 into left and right except for the rear end. As shown in FIG. 8(B), a pair of recesses 47, 47 whose front ends are located behind the screw 36B are formed, and the front ends of the recesses 47, 47 have a stepped shape that faces upward at the rotation restriction position. First stoppers 48, 48 are formed, respectively.

The second lever 42 is a plate body having an L-shape when viewed from the side and is housed in the slit 46 of the first lever 41, and the intermediate portion thereof is rotated by a left-right pin 50 at a position rearward and above the screw 36B. possible to be connected. The rear end of the second lever 42 is connected to the locking plate 32 in the same manner as the first lever 41 by a torsion spring 51 which is wound around a pin 50 and has one end locked to the locking plate 32 and the other end to the rear end. 32 and is biased in a downward direction away from 32.
Further, second stoppers 52, 52 that protrude left and right are provided on the left and right side surfaces of the second lever 42 below the pin 50. In the rotation restriction position of the first lever 41, the second stopper 52 extends downward from the pin 50, as shown in FIGS. It comes into contact with the front end edges of 47, 47. In this state, the second lever 42 resists the bias of the torsion spring 51 and causes the rear end portion to protrude downward from the slit 46 . In this rotation restriction position, the second stoppers 52 are arranged in a straight line in the vertical direction above the first stopper 48 and have their lower surfaces close to the first stopper 48 .
Furthermore, as shown in FIG. 8(A), the front end of the second lever 42 has a second claw portion that can be locked from below to the locked portion 8B on the rear side of the stand main body 4 at the rotation restriction position. 53 is formed.

Therefore, if only the rear end of the first lever 41 is gripped and rotated upward from the rotation restriction position, the second lever 42, where the second stopper 52 contacts the front end of the recess 47, also tries to rotate at the same time. As shown in FIG. 9(A), since the first stopper 48 and the second stopper 52 abut each other, rotation of both levers 41 and 42 is restricted. In this state, the first claw part 45 and the second claw part 53 rotate downward from the locked part 8B, but do not separate rearward from the locked part 8B, so that they cannot be released from the locked part 8B. is prevented. Therefore, the bracket 20 with reduced locking force can be slid to any sliding position along the base body 4. After determining the slide position, if the grip on the rear end of the first lever 41 is released, the first lever 41 returns to the rotation restriction position and locks the first claw portion 45 to the locked portion 8B. , the bracket 20 can be positioned at the slide position.

On the other hand, when the rear end of the first lever 41 and the rear end of the second lever 42 are both squeezed and rotated upward, the second lever 42 protrudes from the slit 46 as shown in FIG. 9(B). Since the first lever 41 rotates first to remove the second stopper 52 from the position close to the first stopper 48, the first lever 41 can also be rotated subsequently. Due to the misalignment between the screw 36B, which is the center of rotation of the first lever 41, and the pin 50, which is the center of rotation of the second lever 42, the first stopper 48 and the second stopper 52 remain deviated from each other in the rotational direction. Therefore, no interference will occur. Therefore, as shown in FIG. 9(C), when the first lever 41 and the second lever 42 are unlocked from each other, both the first claw part 45 and the second claw part 53 engage the locked part 8B. You can rotate it until it comes off. If the rear end of the bracket 20 is lifted upward, the first and second levers 41 and 42 will be separated from the base body 4, so if the bracket 20 is moved forward, the claw part 39 of the front locking part 38A will be moved. The bracket 20 can be removed by coming off the locked portion 8A.
In this way, although the center of rotation is different between the front and back, the first lever 41 and the second lever 42 rotate in the same direction when attaching and detaching the bracket 20, making the operation easier.

When attaching the bracket 20, conversely, the claw portion 39 of the front locking portion 38A is first locked to the locked portion 8A, and then the rear end of the bracket 20 is tilted horizontally. Then, the first and second levers 41 and 42 move to the rear of the stand main body 4, and the first and second claw parts 45 and 53 abut against the inclined surface of the locked part 8B, so that the first and second levers The levers 41, 42 automatically rotate, and the first and second claw parts 45, 53 get over the locked part 8B. Thereafter, the first and second levers 41 and 42 are rotated by the bias of the coil spring 43 and the torsion spring 51, and the first and second claw parts 45 and 53 are again locked to the locked part 8B, and the bracket 20 is rotated. It will be fixed.

Note that, as shown in FIGS. 1 to 3, the tabletop circular saw machine 60 fixed to the workbench 1 has a turntable 62 that can be horizontally rotated at the center of a base 61 that has a surface for placing the material to be cut on the upper surface. A slide bar 64 is held at the upper end of an arm 63 erected behind the turntable 62 so as to be slidable in the front-rear direction. At the front end of this slide bar 64 is provided a main body 65 which is rotatably driven by a motor and has a vertically oriented saw blade, which is movable up and down and biased to the upper limit position. A handle 66 for vertical operation is provided at the upper end of the main body 65. A guide fence 69 for applying and positioning the material to be cut is installed between the right placing part 67 and the left placing part 68 of the base 61 located on the left and right sides of the turntable 62. Leg portions 70 and 70 are formed at the lower portions of the legs 67 and 68 in the front-rear direction, respectively. Attachment holes 71, 71 for fixing to the workbench 1 are formed at both front and rear ends of the leg portion 70, respectively.

When fixing the tabletop circular saw machine 60 to the workbench 1 configured as described above, hold the left and right brackets 20, 20 on the table main body 4 with only the first levers 41, 41 gripped. The positions are adjusted so that the upper pedestals 21, 21 are located below the legs 70, 70 of the base 61. Then, the tabletop circular saw machine 60 is placed across the left and right upper pedestals 21, 21, and the lock nuts 27, 27 are positioned directly below the mounting holes 71, 71 of the legs 70, 70, respectively.
After positioning the lock nuts 27, 27, if the mounting bolt 28 is passed from above each leg 70 through the mounting hole 71 and the upper slit 23 of the upper pedestal 21 in this order and screwed into the lock nut 27, each leg 70 is It is coupled to the upper pedestal 21. If long-dimension mounting bolts 28 are prepared, one type can be used even if the thickness of the leg portion 70 changes.

Therefore, the operator can cut the material by setting the material to be cut on the base 61 and turntable 62, holding the handle 66, and lowering the main body 65 while rotating the saw blade. . At this time, in the case of a long material to be cut, if it is placed between the support rollers 11 or support plate 12 of the auxiliary bars 5, 5 and the base 61, the horizontal state of the material to be cut can be maintained without any problem. Can be cut.
When cutting at an angle by horizontally rotating the saw blade against the material to be cut, the turntable 62 is rotated by gripping the grip 72 that projects forward of the turntable 62. Even if this rotation angle becomes large, since the mounting bolt 28 does not protrude above the leg portion 70, there is no risk that the grip 72 will interfere with the mounting bolt 28.

On the other hand, if you want to change the position of the tabletop circular saw machine 60 in the left-right direction, just squeeze only the first levers 41, 41 on the left and right brackets 20, 20, and the locking force will remain in a reduced state. It becomes possible to slide to the position. After positioning, when the grip of the first levers 41, 41 is released, each first claw portion 45 is again locked to the locked portion 8B and fixed at the slide position.
In addition, when using the tabletop circular saw machine 60 by placing it directly on the ground, etc., by grasping both the first and second levers 41 and 42 on the left and right brackets 20 and 20, respectively, the rear side The locking with the locking part 8B is released, so if you lift the rear ends of the left and right brackets 20, 20 together with the tabletop circular saw 60 and pull them towards you, the locking with the front side locked part 8A will be completed. is also released and can be removed from the workbench 1. Therefore, the brackets 20, 20 can be directly placed. Since the feet 29 of the upper pedestal 21 protrude further downward than the locking portions 38A and 38B, only the feet 29 at the four corners can contact the ground or the like to horizontally support the base 61.

As described above, according to the bracket 20 and the workbench 1 of the first embodiment, the upper pedestal 21 and the lower pedestal 22 (pedestal), which are placed on the pedestal 2 and to which the tabletop circular saw machine 60 is fixed, and the pedestal Two locks are provided on the lower pedestal 22 at positions sandwiching the pedestal 2 from both sides in the horizontal direction perpendicular to the pedestal 2, and can be respectively locked to the locked parts 8A and 8B provided on both sides of the pedestal 2. The locking portion 38B includes a first lever 41 and a second lever 42 (a first operating portion and a second operating portion) that are operable to engage and disengage from the locked portion 8B, respectively. The lower pedestal 22 can be moved along the pedestal 2 by the first lever 41 releasing the lock from the locked part 8B, and by both the first lever 41 and the second lever 42. The lower pedestal 22 can be removed from the pedestal 2 by the unlocking operation from the locked portion 8B, and the locking and unlatching operation directions of the first lever 41 and the second lever 42 are the same. Therefore, position adjustment on the pedestal 2 and attachment/detachment work can be performed smoothly, resulting in excellent workability.

Particularly here, the first operating section and the second operating section are configured as a first lever 41 and a second lever 42 whose ends are rotatably connected to the lower pedestal 22, respectively, and the rotational operation is performed in the direction of the engagement and disengagement operation. Since the directions are the same, the unlocking operation with the locked portion 8B can be smoothly performed by rotating (gripping) in the same direction.
In addition, the respective rotation centers of the first lever 41 and the second lever 42 are arranged to be shifted in the front-back direction, and the first lever 41 and the second lever 42 can be operated to release the lock of only the first lever 41. Since the first stopper 48 and the second stopper 52 are provided, which come into contact with each other and restrict the rotation of each other when Release of restrictions during operation can be reliably performed with a small number of parts.
Furthermore, since the second lever 42 is accommodated in a slit 46 in the front-rear direction provided in the first lever 41, space is saved even if two levers are provided, and the first and second levers 41, 42 can be easily grasped at the same time, resulting in good operability.

According to the bracket 20 and workbench 1 of the first embodiment, the upper pedestal 21 and the lower pedestal 22 (pedestals) placed on the pedestal 2 and to which the tabletop circular saw machine 60 is fixed, and the pedestal 2 Two locking portions 38A are provided on the lower pedestal 22 at positions sandwiching the pedestal 2 from both sides in a horizontal direction orthogonal to the pedestal 2, and can be respectively locked to the locked portions 8A and 8B provided on both sides of the pedestal 2. , 38B, the locking portion 38B includes a first lever 41 (operating portion) that can be operated to engage and disengage from the locked portion 8B, and a second lever 42 that restricts the movement range of the first lever 41. (regulating part), and the lower pedestal 22 can be removed from the pedestal 2 by moving the first lever 41 and the second lever 42 in the same direction. Therefore, position adjustment on the pedestal 2 and attachment/detachment work can be performed smoothly, resulting in excellent workability.

In addition, in the above-mentioned form 1, the second lever is accommodated in the slit of the first lever, but a recess may be provided on the side surface of the first lever and the second lever may be accommodated in the recess, or a recess may be provided. The first lever and the second lever can also be arranged adjacent to each other in the left-right direction. In these cases, the stoppers that abut each other are provided only on side surfaces that are adjacent to each other. The length of each lever, the shape of the claw portion, etc. may be changed as appropriate, and a lever may be formed by combining a plurality of parts.
Further, in the first embodiment, the front locking portion is a hook body and the rear locking portion is two levers, but the front and rear locking portions may be reversed, or the front and rear sides may be provided with two levers.

On the other hand, in the above-mentioned form 1, the base of the bracket is divided into an upper base on which the power tool is fixed and a lower base on which the power tool is fixed to the cradle. It is also possible to provide respective locking parts (operating part and regulating part). The fixing structure of the power tool is also not limited to the first embodiment described above.
The structure of the workbench can also be modified as appropriate, such as omitting one or both of the auxiliary bars, making the legs telescopic rather than folding, or making the legs a link structure. The power tool to be fixed may also be of other types, such as a cutter, in addition to a tabletop circular saw.

[Form 2]
Next, another embodiment in which the bracket can be more securely locked will be described below. However, the same components as in the first embodiment are given the same reference numerals, redundant explanations are omitted, and different components will be mainly explained.
The first lever 41 shown in FIG. 10 is not provided with the first stopper of the first embodiment. In the first lever 41, flat portions 45a, 45a extending in the front and back direction at the rotation restriction position are formed on the upper surface of the first claw portion 45 that protrudes toward the recesses 47, 47 on the left and right sides with the slit 46 in between. . As shown in FIG. 12(A), the flat portion 45a is located below and in front of the second stopper 52 of the second lever 42 in the locked state to the locked portion 8B. An arc locus L1 indicated by a dashed line when the front and rear ends of the flat portion 45a rotate around the screw 36B passes behind and below the lower end of the second stopper 52. A first corner portion 49 is formed below the first claw portion 45 and protrudes forward and downward when locked to the locked portion 8B.
The second lever 42 shown in FIG. 11 is formed with a second corner 54 that projects downward when locked to the locked portion 8B.

Only the first lever 41 is rotated upward from the locked state shown in FIG. 12(A). Then, as shown in FIG. 12(B), the flat portion 45a moves rearward along the arc locus L1 and comes into contact with the lower end of the second stopper 52. At the time of this contact, the flat portion 45a assumes a tilted attitude downward toward the front, and the rear end of the flat portion 45a is located behind and slightly above the lower end of the second stopper 52. Therefore, when the second lever 42 is attempted to be rotated upward after the first lever 41 is rotated, the rearward movement of the second stopper 52 is blocked by the flat portion 45a. That is, the second lever 42 cannot be rotated.
When an attempt is made to rotate only the first lever 41 in this state, the second stopper 52 is guided by the inclined plane part 45a, and the second stopper 52 is moved forward (to be engaged) along the rotation locus L2 centered on the pin 50 shown by the dashed line. rotationally biased towards the locking side (to the locking portion 8B). This wedge action suppresses the movement of the second lever 42 from rotating together with the first lever 41 due to friction between the second lever 42 and the first lever 41 . That is, the locked state (locked state) of the second claw portion 53 to the locked portion 8B is maintained. The first lever 41 also cannot be rotated any further because the second stopper 52 of the second lever 42 in the locked state comes into contact with the flat portion 45a.

On the other hand, the rear end portion of the first lever 41 and the rear end portion of the second lever 42 are grasped together and rotated upward. Then, as shown in FIG. 12(C), the second lever 42 protruding from the slit 46 rotates first to move the second stopper 52 to the outside of the rotation locus L1 of the flat portion 45a. As a result, the flat portion 45a no longer comes into contact with the second stopper 52, so that the first lever 41 can also be rotated subsequently. Therefore, the first lever 41 and the second lever 42 can be rotated until both the first claw part 45 and the second claw part 53 are removed from the locked part 8B.
If the rear end of the bracket 20 is lifted upward, the first and second levers 41 and 42 will be separated from the base body 4, so if the bracket 20 is moved forward, the claw portion 39 of the front locking portion 38A is removed from the locked portion 8A, and the bracket 20 can be removed.

Note that, when the bracket 20 is removed, the second lever 42, which is rotated downwardly by the torsion spring 51, has a front surface where the second stopper 52 is provided, as shown in FIG. 1 makes contact with the fulcrum portion 55 of the lever 41. At this contact position, the second lever 42 is restricted from rotating.
When attaching the bracket 20, the claw portion 39 of the front locking portion 38A is first locked to the locked portion 8A, and then the rear end of the bracket 20 is tilted horizontally. Then, the first lever 41 automatically rotates upward against the bias of the coil spring 43 as the first corner 49 of the first claw portion 45 comes into contact with the inclined surface of the locked portion 8B. . At this time, the second corner portion 54 of the second lever 42 also comes into contact with the inclined surface of the locked portion 8B as the bracket 20 falls down.
As the first lever 41 rotates, the fulcrum portion 55 comes into contact with the second stopper 52, so that the second lever 42 also rotates upward against the bias of the torsion spring 51. Therefore, the first and second claw parts 45, 53 get over the locked part 8B. Thereafter, as shown in FIG. 12(A), the first and second levers 41 and 42 are rotated in the locking direction by the urging force of the coil spring 43 and the torsion spring 51, and the first and second claw parts 45 and 53 are rotated again. The bracket 20 is fixed by being locked to the locked portion 8B.

In this way, also in the bracket 20 and the workbench 1 of the second embodiment, the locking from the locked portion 8B is achieved by both the first operating portion (first lever 41) and the second operating portion (second lever 42). The lower pedestal 22 can be removed from the pedestal 2 by the release operation, and the engagement and disengagement directions of the first lever 41 and the second lever 42 are the same. When the first lever 41 is operated to release the lock alone, the second lever 42 cannot be operated to release the lock.
With this configuration, attachment/detachment work on the pedestal 2 can be performed smoothly, resulting in excellent workability, and reliable locking by the second lever 42 is also possible.

In particular, the first claw part 45 of the first lever 41 is provided with a flat part 45a (contact part) that comes into contact with the second lever 42 when the first lever 41 is unlocked by itself. Due to the contact with the portion 45a, the second lever 42 cannot be unlocked. Therefore, the second lever 42 can be easily locked using the first lever 41.
Further, the flat portion 45a rotates and biases the second lever 42 in the direction of locking the locked portion 8B as the first lever 41 rotates. Therefore, more reliable locking can be performed.
Further, the contact portion is a flat portion 45a that assumes an inclined posture as the first lever 41 rotates and biases the second lever 42 to rotate in the locking direction. Therefore, the contact portion can be easily formed.

Note that in the second embodiment, the same changes as in the first embodiment can be made. For example, it is possible to make a change in which a recess is provided in the side surface of the first lever and accommodate the second lever in the recess, or a change in which the first lever and the second lever are arranged adjacent to each other in the left and right direction without providing a recess. . In these modifications, the plane portion and the second stopper portion can be provided only on side surfaces adjacent to each other.
The contact portion is not limited to a flat portion, but may be a curved portion (either a concave curved surface or a convex curved surface).

1...Workbench, 2...Base, 3...Legs, 4...Base body, 8A, 8B...Locked parts, 20...Bracket for workbench, 21...Upper pedestal, 22... Lower pedestal, 27... Lock nut, 28... Mounting bolt, 31... Connecting plate, 32... Locking plate, 35... Side plate, 36A, 36B... Screw, 38A, 38B... Locking part, 39...Claw part, 41...First lever, 42...Second lever, 43...Coil spring, 45...First claw part, 45a...Plane part, 46...Slit, 48...First stopper , 50... Pin, 52... Second stopper, 53... Second claw part, 55... Fulcrum part, 60... Tabletop circular saw machine, 61... Base, 65... Main body, 70... Leg part. , 71...Mounting hole.

Claims (7)

A workbench bracket for fixing a power tool , which is provided on the pedestal of a workbench having a long plate-shaped pedestal and legs for supporting the pedestal,
a pedestal placed on the pedestal and to which the power tool is fixed;
two locking parts that are provided on the pedestal at positions that sandwich the pedestal from both sides in a horizontal direction perpendicular to the longitudinal direction of the pedestal, and that can be respectively locked to locked parts provided on both sides of the pedestal; and,
At least one of the two locking parts has an end rotatably connected to the pedestal, and a first lever and a second lever that are respectively operable to engage and disengage from the locked part in the same rotational direction. and the other of the locking parts not formed by the first lever and the second lever is removable from the locked part,
The respective rotation centers of the first lever and the second lever are arranged to be shifted in the horizontal direction, and the first lever is provided with a lock only when the first lever is independently unlocked. , an abutting portion that abuts the second lever that is locked to the locked portion is provided;
When the first lever and the second lever are both locked to the locked part, when the first lever is operated to release the lock alone, the first lever is brought into contact with the abutting part. and the second lever maintains the locked state to the locked portion by disabling the locking release operation,
When the first lever and the second lever are both locked to the locked portion, even if the second lever is operated alone to release the lock, the first lever does not move to the locked portion. While the locked state of is maintained,
When both the first lever and the second lever are operated to release the lock, the second lever, which the abutting portion does not abut due to the deviation of the center of rotation, rotates together with the first lever, and the second lever rotates together with the first lever, and the second lever is rotated together with the first lever, and the second lever is rotated together with the first lever. A bracket for a workbench, characterized in that the pedestal can be removed from the pedestal by releasing the latching to the stop portion. The bracket for a workbench according to claim 1 , wherein the abutting portion rotationally biases the second lever in a direction of locking the locked portion as the first lever rotates. . The operation according to claim 2 , wherein the contact portion is a flat portion that assumes an inclined posture as the first lever rotates and biases the second lever to rotate in the locking direction. Table bracket. A workbench bracket for fixing a power tool , which is provided on the pedestal of a workbench having a long plate-shaped pedestal and legs for supporting the pedestal,
a pedestal placed on the pedestal and to which the power tool is fixed;
two locking parts that are provided on the pedestal at positions that sandwich the pedestal from both sides in a horizontal direction perpendicular to the longitudinal direction of the pedestal, and that can be respectively locked to locked parts provided on both sides of the pedestal; and,
At least one of the two locking parts has an end rotatably connected to the pedestal, and a first lever and a second lever that are respectively operable to engage and disengage from the locked part in the same rotational direction. and the other of the locking parts not formed by the first lever and the second lever is removable from the locked part,
The respective centers of rotation of the first lever and the second lever are arranged to be shifted in the horizontal direction, and the first lever and the second lever have a locking release operation of only the first lever. Stoppers are respectively provided that come into contact with each other and restrict mutual rotation when
When the first lever and the second lever are both locked to the locked portion, when only the first lever is operated to release the lock, the first lever and the second lever are brought into contact with each other due to the stoppers coming into contact with each other. The second lever is rotationally restricted at a position that prevents removal of the pedestal from the pedestal, and allows the pedestal to move along the pedestal ;
When the first lever and the second lever are both locked to the locked part, even if the second lever is operated to release the lock alone, the first lever does not move the locked part to the locked part. While the locked state of is maintained,
When both the first lever and the second lever are operated to release the lock, the first lever and the second lever, in which the stoppers do not come into contact with each other due to the deviation of the rotation centers, rotate together and the second lever is rotated together. A bracket for a workbench, characterized in that the pedestal can be removed from the pedestal by releasing the latching from the latching portion. 5. The workbench bracket according to claim 4 , wherein the second lever is housed in the horizontal slit provided in the first lever. A workbench bracket for fixing a power tool , which is provided on the pedestal of a workbench having a long plate-shaped pedestal and legs for supporting the pedestal,
a pedestal placed on the pedestal and to which the power tool is fixed;
two locking parts that are provided on the pedestal at positions that sandwich the pedestal from both sides in a horizontal direction perpendicular to the longitudinal direction of the pedestal, and that can be respectively locked to locked parts provided on both sides of the pedestal; and,
At least one of the two locking parts includes a first lever whose end is rotatably connected to the pedestal and can be operated to engage and disengage from the locked part, and a first lever whose end is rotatably connected to the pedestal. and a second lever that is connected to each other and can regulate the movement range of the first lever, and the other locking portion that is not formed by the first lever and the second lever is configured to lock and release from the locked portion. possible,
When the respective rotation centers of the first lever and the second lever are arranged to be shifted in the horizontal direction, and the first lever is locked to the locked portion, the first lever can be turned alone. When the first lever is rotated in the direction of releasing the lock from the locked part, the first lever comes into contact with the second lever, and rotation is restricted to a position where removal of the base from the pedestal is prevented. ,
Even if the second lever is rotated independently in the unlocking direction of the first lever in a state where the first lever is locked to the locked part, the locked part by the first lever is While the state of locking to the part is maintained,
When the second lever is rotated together with the first lever in the unlocking direction, the first lever does not come into contact with the second lever and is unable to lock the locked portion due to the deviation of the center of rotation. A bracket for a workbench, characterized in that the pedestal can be removed from the pedestal by being released . A long plate-shaped cradle to which a power tool is fixed;
comprising legs that support the pedestal,
A workbench, wherein the workbench bracket according to any one of claims 1 to 6 is removably provided on the cradle, and the power tool can be fixed to the workbench bracket.

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