JP2010149195A - Work support for reducing weight of tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To arbitrarily and easily move and operate tools using less labor. <P>SOLUTION: Tools 3 are attached to one end of an arm 1, and a weight 2 is attached to the other end. The overall center of gravity of the arm is brought to a fulcrum 5. The fulcrum and the center of gravity are pivotally supported at one end of the arm, and a weight is attached to the other end. The overall center of gravity of a next arm 4 is brought to a fulcrum 8, and the fulcrum of the last arm is pivotally supported on a column 7. The included angle of two sides of the pivotal support is increased or decreased, or tools are attached to one end of the arm and a weight is attached to the other end of the other arm, the overall weight of the arms is brought to the fulcrum, and the fulcrum is pivotally supported on the column. When the weight is extended in the opposite direction of the movement of the tools, the tools are arbitrarily moved and displaced easily using less labor since the weight is kept in balance with the tools. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

   The present invention reduces the weight of tools, etc., makes them easier to hold, operates, and keeps working for a long time, making it difficult to get tired or even at high places and places that require unreasonable posture, easy posture, safe with light labor The present invention relates to a device that assists in working.

When working on the ceiling surface, more force is required in the case of applying force to the tool with the face facing up and supporting the weight of the tools by hand. Work dust, etc. is applied to the face. In the case of the wall surface, it is easier than working on the ceiling surface, but the weight of the tools is supported, and when applying force to the tool, the foot must be stepped on and supported. In the case of the floor surface, if you want to press against the floor surface with a force smaller than the weight of the tools, you must continue to lift it by applying an upward force. If you are working out of reach, you must build a scaffold, and you may fall and get injured in high places.

Also, for example, cleaning of ceiling surfaces, wall surfaces, and the like. It is always clean and comfortable if you clean it regularly, but if you do not wipe or rub it with force, you can remove and remove dirt more completely, so remember the past cleaning experience that you struggled with Tired of just looking at it and losing motivation. If it is left uncleaned, the room will be darkened and lighting will not be used effectively, which will go back to energy saving. .

As an improvement measure, there is adjustment and assembly of the scaffold according to the place.
In this case, if the scaffold (mounting base) rotation area is made larger or smaller than the maximum roller rotation area, it will fall down unless it is made heavier. A large amount of energy and work is required to lift and lower the pole. It's not easy because you have to move the entire four-wheel scaffolding.

The structure is complicated, and the load of tools etc. can be easily and freely controlled with as little force as possible, and cannot move up and down, left and right, back and forth, and in a wide range as desired.

A single side, beam-shaped arm is simple in structure, but the tip of the side can move only within the rotation range around the fulcrum of the side, but the position of the load is on that side. If you move left and right, you can change the rotation range of the load. However, if the working environment is less than the length of the side, the side hits an object and cannot be rotated. Therefore, the total length of the two sides of the triangle is longer than the other side, so if you attach a load to the tip of one side, pivot it so that it can rotate with the other side, and adjust its narrow angle, the other side Can be adjusted over a wide range. It can be moved over a wide range because it can be shortened from the total length of the two sides to the minimum and almost zero. Also, to remove the weight of the load tool and attachments, attach the tools to the force point of the side and arm (preferably the tip) and attach the force side moment to the action point on the extension of the side via the two fulcrum support points. You just need to install a weight that is almost the same. The center of gravity comes to the pivot point. A weight is set on the side of the fulcrum so that the center of gravity comes to the fulcrum of the arm with no load. The fulcrum is pivotally supported with the support. Connect the column and pedestal. Since it is balanced, the pedestal area that supports the supporting column can be reduced. If the fulcrum and the fulcrum of the arm with two sides or the load-free arm can be rotated on a vertical plane or a horizontal plane, the load can be moved in three dimensions up and down, left and right, and back and forth with little effort. Can work. If the weight that is larger than the action point side moment is set on the force point side or the action point side moment is smaller than the force point side moment, the force point is lowered. If the weight that is larger than the force point moment is set on the action point side or the moment is set to the action point side, the force point will be raised. A hook can be installed at an arbitrary position on the force point side or the action point side, and a weight can be applied to it. The tip of the arm rotates around the fulcrum and hits or leaves the work surface diagonally from above or below. However, since the diagonal force can be decomposed into a horizontal component and a vertical component, the horizontal and vertical components can be used as a spring that presses or pulls the tools with a constant force. A spiral spring or the like may be installed at the fulcrum. The other end of the spiral spring is fixed to the arm while the other end of the spiral spring is fixed to the fulcrum. Further, the arms may be connected with a rod-like spring. Also, when the side and arm are pivotally supported with low frictional force, the arm moving force may be adjusted by adjusting the pressing force by pinching and supporting it via a friction plate, etc. When pulling, pushing, raising and lowering the part, the support column is subject to force and falls easily, so the pedestal area and weight are increased accordingly. The pedestal may be installed on the ceiling surface or wall surface in addition to the floor surface.
You may change the synthetic | combination length with the polygon of 3 or more sides. By adjusting the narrow angle of each two sides, the maximum length, the total length of each side can be reduced to the minimum, zero, so it can move over a wider range. Adjacent sides are supported one after another, and a weight is installed on the side of the action point of each pivot point.
Alternatively, the narrow angle of two sides of the triangle may be set to 180 degrees, one side may be pivotally supported on the support, and the other side may be extended or contracted along one side. A load such as a tool is attached to the extensible side or the tip of the beam-shaped arm, and a weight with a weight that is approximately the same as the load weight or approximately the same as the moment of the load is placed on the opposite side of the fulcrum with the column. If it is moved in the direction opposite to the expansion / contraction direction, the arm tip can be moved three-dimensionally up and down, left and right, and back and forth to any position with a light effort with the tool attached. If the weight is smaller than the force point moment, the weight is set or the action point moment is smaller than the force point moment, the force point is lowered, and if the weight greater than the force point moment is set or the action point moment is set, the force point is raised. It can be used as a compression spring that is directed and presses the tool against the object or a tension spring that pulls the object. Moreover, if a hook etc. is installed in the arbitrary positions of the power point side or the action point side, and a weight is hooked on it, it can respond quickly. In addition to the spring to push and pull the tool, the weight of the weight that pushes and pulls the arm may be used. It can be used as a compression spring that presses the tools against the object on the front side or the front surface, or a tension spring that presses against the object on the back side or the back surface.
The lengths of the sides and arms may be adjusted or fixed according to the place of use by creating or extending the outer cylindrical side of the outer side and the inner cylindrical side of the inner side, expanding or contracting, or overlapping the sides.

Since this device only bends or expands and contracts a single rod-like object, it is extremely convenient and does not occupy a large area. This device is suitable for work on relatively light objects such as mops and brushes, but even heavy objects can be used although the weight will increase accordingly. Since the left and right sides of the arm and arm are always balanced, the tip of the arm can be moved three-dimensionally in the vertical, horizontal, vertical, horizontal, and forward / backward directions with minimal force and no power. Of course, it requires a certain amount of force, but it may be moved with approximately balance. The area of the pedestal supporting the entire arm can also be reduced. By moving only up and down, left and right, or front and rear, restricted operations can be performed. Even if a power source such as an electric motor is used to adjust the narrow angle of the two sides, the energy can be minimized. If you attach a tool or attachment that fits the work to the tip of the arm, you can move the tool up and down, left and right freely or move up and down, left and right, and back and forth with little effort, so even those with weak physical strength can work easily Continue for a long time, never get tired again. For example, the cleaning of the ceiling, wall surface, floor surface of the room or the outdoor graffiti erase work. Scraping with a mop or using power such as a motor to turn the mop will increase its weight, but this device can be made lighter so it will not be a problem. It is efficient because it can be operated lightly even if a suction hose and suction hose are installed to remove dirt at the same time as removing dirt with a mop. You can extend the parts that are out of reach, and move and operate the arms and tools using the operation bar. It is also useful for pruning plants outdoors. It takes effort to hold and move heavy power pruning clippers, but it can be done easily with this device. The same applies to car washing with a brush, spray painting, and drilling with a drill. Various other work can be considered.
The work becomes fun and progresses.

Inexpensive, general-purpose parts, minimum number of parts, simple structure and easy installation and operation.

FIG. 1 is an external view of the apparatus. The working range is changed by adjusting the total length of the arm by bending (round numeral 1) and expanding and contracting (round numeral 2) of the beam and beam-shaped arm.
A weight 2 and a load and a work tool 3 are attached to both ends of the arm 1, the center of gravity of the attached arm is pivotally supported 5 so as to be able to rotate with one end of the other arm 4, and a weight 6 is attached to the other end. The center of gravity of the attached arm 4 is pivotally supported with the support column 7, and the support shaft 10 is supported so that the support column 7 can be fixed or rotated so as not to fall down. If the cross section of the center of gravity of the arm 1 is circular and is held by a round outer cylinder, and the outer cylinder is pivotally supported by the arm 4, the arm 1 can be rotated. If you can reach it, you can operate the arm, tool, etc. directly by hand, or if you can't reach it, change the narrow angle θ1, θ2 angle and length L1 with the operation rod 11 attached to the tool, etc. to reduce the load. Move with effort. The operating rod 11 may be adjustable in length by expansion and contraction. If the arms and weights are shifted so as not to collide with each other or the column, the narrow angles θ1 and θ2 can be rotated any number of times other than 360 degrees. In order to reduce the weight of the arm, a rib or a recess may be provided by making a through hole in the arm, bending a part thereof, or extruding like a diamond brake within a range that maintains the design strength. The shape of the weight can be round, square, triangular, etc.
The outer cover with the pivotally supported fulcrum 12, the arm attached with the tool 3 inside the outer cylinder 13, the inner cylinder 14 inserted, and the moment from the fulcrum of the center of gravity of the entire outer jacket 13 attached with the weight 15 The weight 15 on the arm 13 is moved in the opposite direction along with the expansion / contraction direction of the arm 14 so that the moment of gravity of the center of gravity from the fulcrum of the entire arm 14 to which the tool 3 is attached becomes the same around the fulcrum. The load is moved with little effort by changing the length of L2 and the angle of the narrow angle θ3. The contact surface of the inner cylinder of the arm 14 and the outer cylinder 13 that receives the arm 14 may be interposed with oil, a roller, a ball, a wheel, or the like so that it can be smoothly inserted and removed.
Since both devices are balanced on the left and right with the fulcrum at the center, if the fulcrum can be rotated vertically or horizontally with a slight force, the entire length can be adjusted and the load can be adjusted accordingly. Can move over a wide range. The cross-sectional shape of the arm or support may be any shape such as a curved surface such as a round shape or a polygonal shape such as a quadrilateral. The length of the arm, the length of the support, the size of the pedestal, the fulcrum that divides the arm, and the position of the center of gravity may be determined according to the place of use, conditions, and convenience. The material of the arm should be light and strong. There are metals, wood, and synthetic resins. The weight should have a large specific gravity. There are iron, lead and water.

FIG. 2 is a block diagram of the arm bending apparatus shown in FIG. The weight 2 may be a tank for storing a liquid such as water. A liquid is put in from the upper inlet 16 with a lid, and a drain outlet 17 with a lid is attached to the lower portion for excessive filling or drainage. A scale 18 may be provided for measurement. Solids such as stones and blocks may be placed in the cage. Instead of adjusting the weight, the position may be shifted and fastened by the through hole 19. Further, assuming that the maximum load is set, and a weight 2 is set in accordance with the maximum load, and the weight of the difference between the actual load and the maximum load is put together with the actual load, the weight 2 does not need to be changed. As an example, when rubbing the wall surface with the mop 3, the handles 20 and 21 may be grasped in addition to the operation rod 11. The operation rod 11 may be attached to the arm 1. The wrapping body 22 slidably slightly more than half of the sphere so that the mop 3 can swing the head over a wide range may be installed in the mop, and the sphere 23 may be installed at the tip of the arm 1. A part of the arm 4 may be recessed so that the weight 2 does not collide. In order to move the weight 6 to the left and right, the screw 24 engaged with the weight 6 may be rotated by the handle 25. Fine adjustment. In addition, a block 26 that can slide and move in a channel having a C-shaped cross section in part or all of the column 7 is installed, supports the arm 4 and supports the string 27 to the block 26, and changes the direction of the force. Rotate to 28 and connect to a weight 29 that balances the weight of the entire arm 4. By combining all or one part of the rotation angles θ1 and θ2 of the shaft fulcrum or the vertical movement amount L2 of the arm 4, cleaning can be performed with a small amount of labor using the mop 3 from a wide range to a limited part. A wheel 30 and a swinging wheel 31 may be installed so that the main body can be easily moved, and a screw 32 that is fastened to the floor so that the work can be easily performed. Further, in order to limit the rotation range θ4 of the shaft, two convex pieces 33 and 34 that determine the rotational range are installed and fixed on the disk 32 fixed to the pedestal, and the convex piece 35 fixed to the column 7 collides. To stop the movement. The rotation angles θ1 and θ2 can be similarly performed. Instead of adjusting the weight of the weight and adjusting the movement, hooks 36, 37, 38, 39 may be installed on both sides of the fulcrum of the arm, and a net or a weight placed in the container may be hooked on these hooks. It can be done quickly. When a downward force is always applied to the mop 3, the weight 2 may be moved toward the fulcrum side or the hook 36 may be hooked with the weight. At that time, if the tip of the arm 1 of the arm 1 of the arm 4 is directed upward, the weight 6 is brought close to the fulcrum side or the weight is hooked on the hook 38. A weight may be hooked. When it is desired to always apply an upward force to the mop 3, the weight 2 may be separated from the opposite side of the fulcrum or the hook 37 may be hooked. At that time, if the tip of the arm 1 on the fulcrum side of the arm 4 is directed downward, the weight 6 is separated to the opposite fulcrum side or the hook 39 is hooked with the weight. In FIG. 2, each arm is installed on one side of the fulcrum, but if the arm is installed on the opposite side to support both sides, it becomes more robust and robust.

FIG. 3 is a diagram in which the work table 3 is kept constant and the same inclination at any position. The work table 3, the arms 1, 40, the support shaft 41, the support shaft 42, the arms 4, 43, the support shaft 42, and the support column 7 that are shifted from each other form a parallelogram, Each piece is pivotally supported so that it can be deformed. Circle number 1 is a side view and circle number 2 is a front view.

FIG. 4 shows the relationship between the structure and force of the one that changes the position by expanding and contracting the side of the circled numeral 2 in FIG. In order to change the length, insert the outer jacket supported by the fulcrum 12, the outer cylinder 13 with the load, the inner jacket with the tools installed at the tip, and the inner cylinder 14 to move the inner cylinder with light labor. The gear and pulley 44 are installed on the outer cylinder 13, the gear is rotated by a rack 45 installed on the inner cylinder, and the gear 46 fixed to the same shaft as the gear is rotated to oppose the moving direction of the inner cylinder. Another gear so that the weight 15 moves in the direction, pulley 48 with transmission parts 49 such as chains and belts, the inner and outer cylinders have round and round cross sections, such as squares and triangles. It may be a side shape. The connection between the fulcrum 12 and the support is pivoted so that it can be rotated up and down or left and right.
The load installed at the tip of the inner cylinder 14, the weight M1 of the tool, the weight M3 of the center of gravity of the inner cylinder 14, the weight M2 of the center of gravity of the combined M1 and M3, the length from the fulcrum 12 is X, Make M2 as close to the tip of the inner cylinder as possible. The weight 15 is M4, the length from the fulcrum is Y, and the center of gravity of the outer cylinder 13 is M5 and L5. When both sides of the fulcrum are balanced, the moment must be M2 × X = M4 × Y + M5 × L5. In this case, since the ratio of Y and X changes depending on the value of X, if M6 × L6, which is the same as M5 × L5, is installed on the load side of the fulcrum and canceled, M2 × X = M4 × Y, and the ratio of Y to X Becomes a constant value M2 / M4 regardless of the value of X. The ratio of the diameters R1 and R2 of the pulley, gear 44 and pulley, and gear 46 is set to that ratio. Depending on the magnitude of M2 and M4, the ratio can be less than the decimal point or greater than 1. If the ratio is 1, it may be directly connected 50 with the chain 49. If you need some power, you don't have to install M6.
You may install M5 on the fulcrum 12 or the left side. M6 can be eliminated or M6 can be installed on the M4 side. ... circle number 2
To rotate the gear and pulley 44, the rack gear 45 is engaged with the rack gear 45 and connected to the ends of the inner cylinder near the ends of the inner cylinder. You may wind with such resistance.

FIG. 5 shows the outer cylinder 13 of FIG. 4 as an inner cylinder with a fulcrum attached thereto. The U-shaped inner cylinder 14 shown in FIG. 4 is used as the outer cylinder.

FIG. 6 shows a configuration method in which the work is performed while always pressing or pulling the tools against the work surface.
The weights 53 and 54 are weighted to one end of the transmission component and the weight 15 is connected to the other end, and the weight 15 is moved to the left and right by the weights of the weights 53 and 54 to generate compression force and tensile force. When moving in the reverse direction, the pulley and gear 55 are used. If the transmission component is a chain, when the weights 53 and 54 have arrived on the floor, the weight can be easily changed to an arbitrary hole position. In addition, a transmission part is wound around a pulley fixed on the same shaft as the gear 44 and the gear 56, and a force of 57, 58 is applied to the left and right sides of the shaft so as to obtain a compression force and a tensile force. It's good ... Round number 1
Alternatively, one end of the transmission part may be overlapped via a pulley 59 having one end of the inner cylinder 14 and the other end set as an outer cylinder 60, and may be connected to the compression spring 61. The compression spring 61 may be turned to the opposite side of the pulley 59. Obtain compressive force and tensile force. One end of the spring 62 may be connected to the outer cylinder 13, and the other end may be connected to the inner cylinder 14. A compressive force or a tensile force can be obtained by a tension spring or a compression spring.

FIG. 7 shows the work in a wider range by tilting the column.
The pedestal 9 and the column 7 are connected by a universal joint 63, and a weight 64 that balances the moment of the column upper part is installed at the lower end of the column. Can be easily tilted if balanced. ... Circle number 1
A plurality of weights 65 and 66 may be formed into a Noji-wabe shape to obtain the same effect as the weight 64. ... circle number 2
Both may be pivoted 67, 68 so that the column can rotate.

FIG. 8 shows that the lengths of the sides and arms 1 and 4 can be adjusted in accordance with the size of the space at the work site. Adjust the overall length by adding bolts 69 that can also be applied to the column. Without shifting, install a convex piece on one side of the side where the cross section is the same shape and a hole to accept it on the other side, and screw them out so that they do not protrude from the outer shape of the side so as to make smooth contact with the opposite side 13 It can be applied to the arm 14 if it is fixed with ...
Adjust the overall length by expanding and contracting, and fix with bolts, etc ... Round number 2
Bend to adjust the total length and fix with bolts, etc ... Round number 3

FIG. 9 shows a tool that is attached to the ends of the sides, arms, and inner casing.
Narrow angle θ4 and length L4 are adjusted, fixed so as not to move with bolts, pulled from the opposite side of the work surface in FIG. 5, and mops 3 are pressed against the work surface.
An example of a pruning clipper 70 is held in a screw hole formed in the inner cylinder 71 using a bolt 72, and a ball or the like is inserted between the inner cylinder and the outer cylinder 73 so that the inner cylinder can rotate, and is held in the outer cylinder. . The outer cylinder is pivoted 74 and 75 so that it can be rotated in a vertical and horizontal plane. Adjustable to front / rear, horizontal plane, vertical plane angle, equipment tilt 76 ... circle number 2
If the shaft supports 77 and 78 can be rotated on a horizontal plane and a vertical plane, and one of them is fixed, limited work can be performed. Weights 79 and 80 may be attached to balance the tool. It is possible to work at an angle with light effort.

FIG. 10 uses a plurality of three or more sides and arms. The center of gravity divided into L1 and L2 on the side where the load and the weight M1 that balances the load are installed is set as the load on the next side, and the weight that balances it is installed. The center of gravity is set as the load on the next side, and weights that are balanced with the load on the next side are sequentially repeated up to the required number N.
Folding sides ... Round numeral 1
Things that expand and contract the side ... Circle number 2

FIG. 11 shows a combination of two stretchable sides, which are a combination of a bent side and a stretchable side.
Using one stretchable side and one folded side ... circle number 2
Using one bent side and two stretchable sides ... Circle number 3
Using two bent sides and two stretchable sides ... Circle number 4
Various other combinations are possible.

Since this device can be operated and handled with light labor, it can be used for work that is unavoidable and requires fatigue.

It is an external view of two this apparatuses. It is a block diagram of the bending apparatus of the arm of FIG. FIG. 3 is a diagram in which the work table 3 is kept constant and the same inclination at any position. It shows the relationship between the structure and force of the one that changes the position by expanding and contracting the side of FIG. Fig. 4 with the inner cylinder and outer cylinder replaced It represents a configuration method in which the work is performed while always pressing or pulling the tools against the work surface. Tilt the support to make the work more extensive The length of the sides and arms 1 and 4 can be adjusted according to the size of the space at the work site. Applicable to props Holds the tool by attaching it to the end of the side or arm It uses multiple, 3 or more sides and arms. It is a combination of bent side and stretch side

Explanation of symbols

1 side, beam, arm 2 weight 3 tool, load, mop 4 side, beam, arm 5 axis fulcrum 6 weight 7 strut
8-axis fulcrum
9 Pedestal 10 Shaft fulcrum 11 Operation rod 12 Shaft fulcrum 13 Outer jacket, outer cylinder 14 Inner jacket, inner cylinder 15 Weight 16 Water supply port 17 Drainage port 18 Scale 19 Stop hole 20 Handle 21 Handle 22 Wrap ball 23 Ball 24 Screw 25 Handle 26 Block 27 Transmission parts such as strings 28 Pulley 29 Weight 6-8
30, 31 Wheel 32 Retaining screw 33, 34, 35 Convex side 36, 37, 38, 39 Hook 40 side, beam, arm 41, 42 Support shaft 43 side, beam, arm 44 Transmission parts 45 such as gear 45 Rack 46 Gear etc. Transmission parts 48 Gears and other transmission parts 49 Chains and other transmission parts 50 Connection points 51 Chains and other transmission parts 52 Strings and other transmission parts 53 and 54 Weights 55 Gears and other transmission parts 56 Pulleys and other transmission parts 57 and 58 Weight 59 Transmission parts such as pulley 60 Weight 61 Compression spring 62 Spring 63 Universal joint 64, 65, 66 Weight 67, 68 Shaft support 69 Bolt 70 Pruning clipper 71 Inner cylinder 72 Bolt 73 Outer cylinder 74, 75 Shaft support 76, 77, 78 Direction of rotation 79, 80 Weight

Claims (6)

A load such as a tool is set on one end of the beam-shaped arm, and a weight is set on the other end, so that the load can be shaken and moved with little effort. Weight reduction for tools, etc., characterized by setting a weight on the other end of the next arm and using the center of gravity of the next arm as a fulcrum so that it is roughly balanced Set a load such as a tool on one end of the beam-shaped arm, insert the other end into a jacket with a fulcrum so that the arm can expand and contract, and make both sides of the fulcrum roughly balanced so that the load can be taken in and out with little effort Tool weight reduction and work support device, characterized by moving the weight set on the jacket in the direction opposite to the arm insertion / removal direction Rotation that moves the diameter of a rotating transmission part such as a gear linked to the amount of movement of the arm and a weight that rotates at the same angle in conjunction with the transmission part so that the arm with a load can move with light labor The tool support weight reduction and work support device according to claim 2, wherein the ratio of the diameter of the transmission parts is the weight of the approximate load and the weight of the weight. The apparatus according to claim 1, 2 or 3, wherein the arm or the column is added, expanded or contracted, or bent so that the length of the arm or the column can be changed according to the work place. The apparatus according to claim 1, 2, 3 or 4, wherein the load is moved and operated by manipulating the operating rod with the load or arm straightened or with one end set on the load or arm. Claims wherein the support of the arm or jacket is tilted so that the fulcrum of the arm or jacket is supported in a horizontal or vertical plane, or is supported by a universal joint so that the middle of the support or pedestal can rotate. 1, 2, 3, 4, 5 devices

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