JPH0739562Y2 - Tool switch remote control mechanism - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention mounts a tool such as a hand-held nailer or a drill on the upper end of a hollow shaft that is vertically expandable and contractible, and remotely controls from below. The present invention relates to a remote operation mechanism of a tool switch that is effective when nailing or punching holes in a ceiling plate or a side wall.

(Prior Art) Conventionally, when a plaster board is stretched on the ceiling by wood screwing or nailing, or when a hole is drilled in the ceiling, the builder either intentionally assembles a scaffold for the work, There was only a way to work in an inconvenient posture on an unstable scaffold or stepladder by using a stepladder to climb up and down frequently.

Therefore, the builder spends labor and money to assemble the scaffolding, or use a stepladder to change the place where the stepladder is frequently placed,
There was a problem that it took labor and cost to go up and down the stepladder each time.

(Purpose of Invention) The present invention solves the above-mentioned problems, and on a stable floor,
The purpose is to enable safe work in a posture that is free of inconvenience.

(Structure of the Invention) The present invention includes a plurality of hollow shafts 2, 3 and 4 which are fitted to each other and are capable of expanding and contracting in the vertical direction, and fasteners 5 and 6 for fixing the hollow shafts to the contracted position. A handle 12 laterally projecting and fixed from the upper end of the hollow shaft 4, a shoulder pad 43 attached to the lower hollow shaft 4 below the handle 12, and a first horizontal shaft on the handle 12 that intersects with the handle 12. A switch lever 15 rotatably attached through 14 and a tool fixing plate 22, 31, 33 attached to the upper end of the upper hollow shaft 2 for tightening a grip portion 30 of a hand-held tool 26, and the upper hollow shaft 2 The tool grip part 30 is supported on the upper end of the tool by the second horizontal shaft 23.
Switch pushing bracket 24 facing the switch 27 adjacent to
And a long Bowden wire 17 for pulling the switch pressing metal 24 to the switch 27 side when the switch lever 15 is gripped to the handle 12 side.

(Operation) A tool 26 such as a hand drill is attached to the upper end of the hollow shaft 1 by using the tool fixing plates 22, 31, 33, and the shoulder pad 43
By setting the length of the hollow shaft 1 so that the tip of the tool 26 reaches the ceiling when the whole device is supported a little lower,
Is gripped with the right hand and the switch lever 15 is pulled toward the handle 12 side by the finger of the right hand, the switch pushing metal fitting 24 pushes down the switch 27 of the tool 26, and the tool 26 operates. When the tip of the tool 26 is adjusted to the desired position and the entire apparatus is pushed up, it is possible to make a hole or strike a nail at the desired position.

(Embodiment) In FIG. 1 showing a state before a tool is attached, a hollow shaft 1 is fitted into each other and three expandable and contractible hollow shafts 2, 3,
4, each hollow shaft can be fixed in a telescopic position by fasteners 5, 6. That is, for example, as shown in FIG. 2, a tapered sleeve 8 having a split groove 7 is arranged between the hollow shafts 3 and 4, and when the fastener 6 is screwed into the threaded portion 9 of the hollow shaft 4, it is tightened. The step 10 on the inner circumference of the metal fitting 6 pushes the sleeve 8 into the gap between the hollow shafts 4 and 3 to fix the positions of the hollow shafts 3 and 4.

A handle 12 is fixed to the upper end of the hollow shaft 4 so as to project laterally from the hollow shaft 4 (Fig. 1).
A switch lever 15 is attached to a bracket 13 fixed to the upper surface of 12 via a horizontal shaft 14 orthogonal to the handle 12.

The inner wire of the Bowden wire 17 is connected to the base end of the switch lever 15, the Bowden wire 17 extends upward through the hole of the guide 18 in parallel with the hollow shaft 1, and the upper end 19 of the outer tube is screwed into the bracket 20. I am fit.
A tool fixing plate 22 that supports one side surface of the tool is fixed to the upper end of the upper hollow shaft 2, and a bracket 20 is fixed to the fixing plate 22. An intermediate portion of a bell crank-shaped switch pressing metal fitting 24 is supported on the horizontal axis 23 of the bracket 20, and the inner wire of the Bowden wire 17 penetrates through the hole of the short lower piece 24a of the metal fitting 24 and above it. Fixed piece 21
Is sitting from above. A compression coil spring 25 is arranged between the lower surface of one piece of the metal fitting 24 and the bracket 20 in order to push the metal fitting 24 upward. As shown in FIG. 3, the main body of the metal fitting 24 is laterally offset from the centerline of the hollow shaft 1 by L and reaches above the switch 27 of the tool 26.

A gutter-shaped tool fixing plate 31 that supports the lower surface of the grip portion 30 of the tool 26 is fixed to the upper end surface of the hollow shaft 2. A tool fixing plate 33 having a hinge 32 is attached to the other side surface of the hollow shaft 2 at a position facing the bracket 20 with the tool fixing plate 31 interposed therebetween, and a fixing plate clamp is provided in a U-shaped groove 34 at the upper end of the fixing plate 33. (Bolt) 35 is fitted. The base end portion of the bolt 35 is supported by two projections 36 (FIG. 3) on the upper portion of the fixed plate 22 via a pin 37, and a wing nut 38 is screwed onto the tip end portion of the bolt 35.

A bracket 40 is fixed to the hollow shaft 4 slightly below the handle 12 by a bolt 41, and a shoulder pad 43 is supported on the bracket 40 via a support shaft 42. Both ends of the torsion coil spring 45 fitted to the support shaft 44 are pressed against the hollow shaft 4 and the shoulder pad 43 to press the shoulder pad 43 downward. FIG. 4 shows a state in which the tool 26 is attached. Reference numeral 45 is a charging drill, and 47 is an air hose required for an air drill.

Press the gypsum board in a horizontal posture using a board jack on the bottom surface of the ceiling edge (lattice material), set the length of the hollow shaft to the length that reaches the ceiling, and set the length with the fasteners 5 and 6. After fixing, the elastic pad 48 on the lower surface of the shoulder rest 43 is supported by supporting it against the right shoulder, at the same time the handle 12 is supported by the right hand, the drill 45 is pressed in a predetermined position, and the switch lever 15 is pulled down by the finger of the right hand. Then the tool will start and drill 45
Rotates, and by pushing up the device little by little, a hole is made in the board.

(Effects of the Invention) (a) By extending and using the expandable and contractible hollow shafts 2, 3, 4 there is no need for a scaffold or stepladder. Therefore, it is possible to save the cost and labor for assembling the scaffold and the labor for frequently stepping up and down the stepladder. Further, the position of the tool 26 with respect to the shoulder pad 43 can be finely adjusted, and there is an advantage that not only the drilling process but also the continuous nailing work can be accurately performed. As the nailing tool, a cassette nail in which a large number of nails are connected in parallel and continuously like a machine gun bullet is used.

(B) Since it is possible to eliminate work in unstable places such as scaffolding and stepladder, safety at the work site is improved.

(C) Since the handle 12 is provided on the upper side of the shoulder pad 43, the posture control of the hollow shafts 2, 3 and 4 is facilitated, and the position of a tool such as a drill is accurately determined. Also, since the switch lever 15 is provided on the handle 12, the switch lever 15 can be simultaneously operated by the hand supporting the handle, and since all fingers except the thumb are used for the switch operation, as if gripping with the palm, It is possible to prevent excessive fatigue of a specific finger. In other words, switches of commercially available drills, automatic nailing machines, etc. are usually operated with only one index finger of the dominant arm, so the load is concentrated only on this finger and the fatigue is severe, but the present invention ensures fatigue. Can be prevented.

(D) Generally, a hand-held tool is provided with a switch 27 that is operated by an index finger adjacent to the grip portion 30, and in the present invention, by utilizing this point, the switch pressing metal fitting 24 facing the switch 27 is provided. Since it is provided, the tool is fixed plate 22,
The tool switch 27 can be operated remotely by only tightening with 31 and 33.

(E) Since the Bowden wire 17 is adopted, the hollow shaft can be expanded and contracted freely, and when it is reduced, it is compactly organized and easy to carry and store. If the grip portions are oriented in the vertical direction by changing the mounting postures of the fixing plates 22, 31, 33, for example, by 90 degrees, it becomes possible to make holes in the wall at a high position and to strike nails.

(F) Since the shoulder pad 43 is used to share the burden on the shoulder, the burden on both hands is reduced, and physical fatigue is reduced as a whole. When drilling a hole in the ceiling, adjust the length of the hollow shaft 1 so that the drill 45 hits a predetermined position on the ceiling with the shoulder slightly lowered, and then apply the drill 45 to the predetermined position on the ceiling to move the switch lever 15 You can work by simply grasping the switch 27 on the handle 12 side and turning your body vertically, and drill 45
The position and posture of the robot are always accurately determined by the handle 12 held by the right hand and the hollow shaft 1 held by the left hand, which also reduces hand fatigue and enables long-term work.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which no tool is attached, and FIG.
The drawing is a vertical cross-sectional view showing a fastener part, FIG. 3 is a partial front view, and FIG. 4 is a perspective view showing a mounting state of a drill. 1 is a hollow shaft, 5 and 6 are fasteners, 12 is a handle, 15 is a switch lever, 17 is a Bowden wire, 24 is a switch pusher, 26 is a tool, and 27 is a switch.

Claims (1)

[Scope of utility model registration request] 1. A plurality of hollow shafts (2, 3, 4) which are fitted to each other and are capable of expanding and contracting in the vertical direction, fasteners (5, 6) for fixing each hollow shaft in an expansion and contraction position, and a lower hollow part. A handle (12) laterally extended and fixed from the upper end of the shaft (4),
The shoulder rest (43) attached to the lower hollow shaft (4) on the lower side of the handle (12) and the first horizontal shaft (14) intersecting the handle (12) on the handle (12). A switch lever (15) that is movably attached, and a tool fixing plate (22, 31, 33) that is attached to the upper end of the upper hollow shaft (2) and tightens the grip portion (30) of the hand-held tool (26), A switch (27) which is supported by the upper end of the upper hollow shaft (2) by a second horizontal shaft (23) and is adjacent to the tool grip (30).
The switch push-fitting (24) facing the switch and the long Bowden wire (17) that pulls the switch push-fitting (24) to the switch (27) when the switch lever (15) is gripped to the handle (12) side. Remote control mechanism for the tool switch.