JPS61226208A - Drill-stand - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a drill stand and a method of operating a drill within the drill stand.

A drill stand is a drill stand with a hand mounted in place.
Designed to accept a drill. The stand is equipped with a handle to control the delivery of the drill bit to the workpiece. In order to operate the drill stand, the user uses a drill.

Close the switch with one hand and operate the handle with the other hand.

The present invention is directed to improving the operation of a drill by providing a power switch within the handle.

The hand drill is mounted within a drill stand and plugged into a power outlet controlled by a switch. The drill power switch is held in the closed position. The total power supplied to the drill is controlled by the hand that controls the drill feed. This is a simple operation for the user and provides an improved operating method.

The present invention provides a drill stand having a feed handle that cooperates with a power switch that controls the power supply to the socket into which the drill power cord is plugged. This allows the user to control the feed of the drill bit with one hand and facilitates operation of the drill.

(b) Embodiment The drill stand shown in FIG. 1 is provided with a pace 0 for supporting a column 12 to which a drill support assembly is attached. It has a clamp 14 that is tightened and loosened by a handle 16 to fix the vertical height of the assembly on the column 12. Spring 18 biases the sliding reciprocating wheel upwardly.

The reciprocating silver containment has upper and lower clamps 22,24. Upper and lower clamps 22,24 secure the drill 26 in position for operation as a drill press with a vertically arranged drive spindle and chuck 28 and a handle projecting to one side.

Upper clamp 22 is moved by handle 32 to clamp and unclamp drill 26.

Clamp 14 is provided with a plate or lever 34. The lever 34 is provided with one or two pivot pins on which the feed handle 36 is pivoted. The handle 36 passes through a tube 38 that is rotatable about an axis that is generally coaxial with the shaft 40 . When the handle is pulled downward, the handle 36 rotates about a fixed pivot. The fixed pivot coincides with bin 42 or 44, for example, and forces the carriage and drill downwardly against the bias of spring 18. Details of this structure are not shown, but are not necessary for understanding the invention.

The handle 36 moves with the split housing 5 (extending l) which is fixed to the plate 52 through the sleeve 38, 46, 48 and moves with the handle when the handle rotates about a fixed pivot. The clamp 50 surrounds a double-pole single-throw switch 54 having a lever-type actuator 56 biased outwardly to the 1" off position. The switch is configured such that the actuator 56 turns the switch on or closed. The two conductors from the power cord 58 connect to the switch 54 and the ground wire connects to the ground point 60 at the socket 62 for the power cord 78.
Connect to. Two conductors connect from the output of switch 54 to socket 62. Thus, when closed, the switch supplies τ power from conductor 58 to socket 62.

Handle 36 is hollow and has a grip 64 threaded onto its outer end. The outer end of the handle 64 has a socket 66 in which a switch activation button 68 is reciprocably mounted. The button 68 is threadedly coupled to a push rod 70 that extends the length of the handle 36 and has a conical member 72 threaded onto its inner end. This is the switch actuator 56
Gives an enlarged head to operate the tip of. Actuator 56 is biased outwardly, as described above, and this biasing is used to bias pushrod 70 outwardly. push rod 7
The outward movement of 0 is restrained by the seat 74.74.

One seat is provided in each half of the housing, with the two seats 74,74 cooperating to create a complete seat for the conical portion of member 720. This positions the push rod 70 in the center,
Prevent trash from getting mixed in.

The user can grip the grip 64 with a simple operation by pressing the button 68 with the thumb. A seal boot 76 with a radiused handle tip may be used to block debris. A power cord 78 from the drill is plugged into the socket 62 and a plunger 80 in the drill handle 30 that produces a drill power switch 82 is connected to the strap 84.
The push switch is held in the closed position by the switch. The operation of the drill is controlled with one hand. Handle 36 controls the delivery of the drill bit to the workpiece, and button 68 is depressed to close switch 54 and connect the drill to power.

This is an improvement over conventional structures that do not allow the user to operate the drill switch and drill feed with the same hand.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the drill stand with the drill fixed in the working position. FIG. 2 is a longitudinal sectional view of the handle and switch housing. FIG. 3 is an enlarged detail of the inner end of the handle showing the saddle for the conical end of the working iron. Figure 4 is 4-4i of Figure 3! A cross-sectional view seen from +i. FIG. 5 is a cross-sectional view taken from line 5--5 of FIG. 1 showing how the drill trigger switch is closed. 10: Pace 12: Post 14: Clamp 16: Handle 18 Spring 20: Reciprocating carriage 22, 24: Clamp
26: Drill 32: Handle 34 Nilever 36: Feed handle 38: Pipe 40: Shaft 42.44: Bin 50: Housing 54: Switch 56 dual actuator
64: Grip 68: Operation button (5 people outside)

Claims (5)

[Claims] (1) having a vertical column on which the carriage is mounted so as to be movable under the operation of a handle connected to the carriage and the column, the workpiece being substantially parallel to said column and under the operation of said handle; a drill stand, the carriage having means for supporting a manual drill having a drill bit moving toward the carriage, the drill stand having a housing, a power cord connected to the housing, and a power cord connected to the power cord; a switch within the housing having an input connected to the power source, a power outlet mounted to the housing, and a push rod, the switch having an output connected to the power outlet; is actuated when closed to connect the switch to the outlet, the switch has a switch actuator oriented in the direction in which it is open, and the push rod moves integrally with the handle. A drill stand characterized in that the switch is actuated by the same hand that engages the actuator and operates the handle. (2) the handle is hollow, and the plunger is coaxial with the handle and reciprocably mounted within the handle;
A drill stand as claimed in claim 1, wherein the handle extends into the housing and the plunger is positioned to engage the switch actuator. (3) means within the housing for guiding the inner end of the plunger and limiting outward movement of the plunger;
and means for guiding the plunger at the outer end of the handle.
Drill stand as described in section. (4) The drill stand according to claim (3), wherein the plunger is acted upon outwardly by a biasing action of the switch actuator. (5) A method of using the structure set forth in claim (1) to operate a manual drill having a power cord and a switch that is activated when closed to energize the drill. securing said drill to said carriage for vertical movement of a vertically placed drill; connecting said power cord to said electrical outlet; securing said drill switch in a closed position; controlling the feed of the drill toward the workpiece by a handle;
A method of using a drill comprising simultaneously controlling the operation of the drill by an actuator of the plunger.