JPH081545A - Flooring guide device for nailing machine - Google Patents

Abstract

PURPOSE:To improve work efficiency by guiding a nose of a nailing machine to a specified position of a tongue of a flooring material regardless of thickness of the flooring material. CONSTITUTION:A forward end of a contact part 22 installed on a contact arm 19 of a nailing machine 11 is wedge-shaped at an opening angle of 90deg. A torsion coil spring is pivotally installed on the contact part 22, one end of it is fixed, and the other end is protruded downward at an angle of about 45deg. to an outgoing direction of a nail to form a guide arm 23. The nailing machine 11 is held at an inclination of about 45deg., and a lower end part of the guide arm 23 is moved along a backing material toward the tongue of a flooring material, so the guide arm 23 is applied to a front surface of the tongue to rotate, where the nailing machine 11 moves down till the contact part 22 coincides with a nailing position of the tongue.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nailing machine for driving nails or staples, and more particularly to a flooring guide device for controlling a driving position and an angle when fixing a floor covering.

[0002]

2. Description of the Related Art A conventional flooring guide device for a nailing machine will be described with reference to FIGS. In FIG. 6, 1 is an air-driven nailer, and 2 is a magazine of nails or staples. A flooring guide device 4 is attached to the back of the nose portion 3 of the nailing machine 1. The lower portion of the plate-shaped flooring guide device 4 is bent at an angle of about 45 degrees with respect to the nail ejection direction, and is guided by the guide surface 4a.
Are formed. When performing the installation work of the floor covering 5,
The nailing machine 1 is tilted at about 45 degrees, the guide surface 4a of the flooring guide device 4 is brought into contact with the upper surface of the floor covering 5, and the nailing machine 1 is slid to the operator side (right in the figure). By moving, the tip corner portion of the nose portion 3 is brought into contact with the upper edge portion of the floor covering 5 and positioned, and when the trigger lever 6 is operated, the nail N or the staple is moved to the corner portion of the tongue 5a of the floor covering 5. Is driven into the base material 7 at an inclination angle of about 45 degrees.

FIG. 7 shows another flooring guide device 8. This guide device 8 is fixed to the front surface of the nose portion 3 of the nailing machine 1 contrary to the guide device 8 shown in FIG. When the nailing machine 1 is slid to the floor covering 5 side while the bent lower guide surface 8a is in contact with the base material 7, the guide device 8 contacts the tip surface of the tongue 5a of the floor covering 5. Be positioned.

There are several types of heights from the bottom surface of the floor covering 5 at which nails are driven to the top surface of the tongue 5a, depending on the standard. To cope with this difference in height, FIGS. It is formed so that the driving position can be adjusted by changing the vertical position of the guide devices 4 and 8 with respect to the nose portion 3.

[0005]

In the conventional flooring guide device shown in FIG. 6, when the nailing machine is aligned with the nail driving position of the floor covering, the nose portion is the upper edge of the floor covering. May damage the upper edge. In addition, the one shown in FIG. 7 does not have a risk of damaging the floor covering, but like the one shown in FIG. 6, it is necessary to adjust the driving position each time according to the thickness of the floor covering. Yes, it is complicated to handle.

Therefore, there arises a technical problem to be solved in order to improve the workability by making it possible to deal with floor covering materials of various standards without adjustment, and the present invention solves the above problems. The purpose is to do.

[0007]

The present invention is proposed in order to achieve the above object, and is attached to the tip end portion of a contact arm provided in a nailing machine which uses compressed air or the like as a power source. A contact part and a guide arm pivotally attached to the upper part of the contact part so as to be rotatable in the front-rear direction. The tip end of the guide arm is projected toward the nail ejection side, and the guide arm is urged by a spring force. Of the nailing machine in an inclined posture during flooring work, and the guide arm regulates the distance between the contact portion of the nailing machine and the flooring base surface. While setting the length of the guide arm to be larger than the distance between the bottom surface of the upholstery and the top surface of the tongue,
A guide device for a flooring of a nailing machine, in which the tip of the contact portion is formed into a wedge shape in a side view and an opening angle thereof is formed to be approximately 90 degrees.

[0008]

When the flooring guide device of the present invention is attached to the tip of the contact arm of the nailing machine and the nailing machine is held at the driving angle, the guide arm attached to the contact portion of the guide device faces downward. The lower end of the guide arm protrudes below the contact part, and when this lower end is brought into contact with the flooring base surface and the nailer is slid, the nailer moves horizontally while maintaining a constant height. To do. When the side surface of the guide arm collides with the front end of the tongue of the flooring material into which the nail is to be driven, the guide arm, which is held in the drooping position by the spring, is pressed by the tongue to rotate, and the guide arm causes a constant movement. The nailing machine supported at the height descends with the lower end of the guide arm as a fulcrum, and the contact portion lands on the upper surface of the tongue. The tip of the contact portion is formed in a wedge shape with an angle of approximately 90 degrees, and the contact portion matches the corner formed by the upper vertical surface of the floor covering and the upper surface of the tongue. The nail ejection opening is located at the base of the tongue while maintaining the driving posture.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to FIGS. FIG. 1 shows a known air-driven nailer 11, in which a head portion 12 and a grip 13 are integrally formed, a cylinder (not shown) in the head portion 12 is loosely fitted with a plunger, and is coupled to the plunger. The driver slides in the nose portion 14 and drives a nail into an object. For the high pressure air that is the driver drive source, the hose connected to the air compressor is connected to the air plug 1 at the end of the grip 13.
5, the trigger valve 16 is operated to open the on-off valve 17 to drive the plunger, and after one shot is completed, the plunger is returned to the standby position and stopped. From the magazine 18 connected to the back of the nose portion 14, the nail is
4 is supplied.

A contact arm 19 which slides along the nose portion 14 is mounted on the nose portion 14, and an upper end portion 19a of the contact arm 19 which is a safety device is pivotally mounted inside a trigger lever 16 having an open rear portion. It touches the tip of the free arm 20. Further, a flooring guide device 21 (hereinafter, simply referred to as a guide device) of the present invention is attached to a lower end portion of the contact arm 19. Then, the guide arm 21 is pressed against the driving target and the contact arm 19 is pushed in, so that the free arm 20 is rotated. In this state, the trigger lever 16 is pulled to cause the free arm 20 to open and close the opening / closing valve 17 of the head portion 12. Is released and the plunger is driven.

The guide device 21 has a contact portion 22 formed into a wedge shape with an opening angle of the tip of approximately 90 degrees so that it can contact the base of the tongue of the flooring material at an angle of 45 degrees. It is constituted by a guide arm 23 pivotally attached to the back side. The guide arm 23 is a torsion coil spring, the coil portion of which is engaged with the pin 24, and the one end portion of which is locked to the convex portion 25 of the contact portion, and the elastic force in the counterclockwise direction in FIG. The intermediate portion of the linear portion on the other end side provided is pressed against the stopper 26 and held in a posture intersecting with the nail driving direction at an angle of about 45 degrees. As for the length of the guide arm 23, as shown in FIG. 2, the distance t1 between the tip of the guide arm 23 and the tip of the contact portion 22 is the distance t between the bottom surface of the floor covering 5 and the top surface of the tongue 5a.
It is formed to be larger than.

Next, the operation of the guide device 21 will be described with reference to FIGS. First, as shown in FIG.
The nose portion 14 of No. 1 holds the nailing machine 11 in a posture in which the driving angle is about 45 degrees, and the tip portion of the guide arm 23 is brought into contact with the base material 7. Next, when the nailing machine 11 is moved in the direction of the floor covering 5 while rubbing the surface of the base material 7 with the tip portion of the guide arm 23 while maintaining the inclined posture of the nailing machine 11, FIG. As shown in, the guide arm 23 contacts the front surface of the tongue 5a, and the guide arm 23 is rotated as the nailing machine 11 moves.

The nailing machine 11 maintained at a constant height by the guide arm 23 has the guide arm 23.
Is rotated to descend, and the contact portion 22 lands on the upper surface of the tongue 5a as shown in FIG. Then, by continuing the movement of the nail driver 11, the wedge-shaped tip of the contact portion 22 abuts against the upper surface of the tongue 5a of the floor covering 5 and the upper front surface thereof, as shown in FIG. The movement of the hammer 11 is stopped, and the nail injection port of the nose portion 14 is aligned with the driving position. When the nail driver 11 is pushed in the injection direction in such a state, the guide device 21 and the contact arm 19 are pushed into the nail driver 11, and the trigger lever 16
When you operate the nail or staple,
The flooring material 5 is fixed by being driven into the floor base material 7 from the corners of the.

Thus, by moving the nailing machine 11 while rubbing the base material 7 with the guide arm 23, the contact portion 22 and the corner portion of the target tongue 5a are automatically aligned. And the distance t between the bottom surface of the floor covering 5 and the top surface of the tongue 5a of various standards having different thicknesses,
By setting the length of the guide arm 23 so that the height t1 of the contact portion 22 becomes high as shown in FIG. 2, it is possible to deal with all floor coverings without adjustment.

The present invention should not be limited to the above-mentioned embodiment, but can be applied to a staple driving machine. Further, for example, a roller or the like may be attached to the lower end portion of the guide arm 23, and it goes without saying that the present invention extends to those modifications.

[0016]

Since the present invention is configured as described in detail in the above-mentioned embodiment, the height of the nailing machine is kept constant by moving the nailing machine while the tip of the guide arm is in contact with the base material. When the guide arm comes into contact with the tongue of the floor covering, the nailing machine descends so that the nose portion and the nailing portion of the tongue are aligned with each other and the positioning is automatically performed. Since the nose part descends from above and comes into contact with the upper surface of the tongue by the action of the guide arm, by appropriately setting the length of the guide arm, flooring of various standards can be performed with one type of guide device. It has versatility to handle materials and can contribute to improving work efficiency.

[Brief description of drawings]

FIG. 1 is a side view of a nailing machine equipped with a flooring guide device according to an embodiment of the present invention.

FIG. 2 is a process explanatory diagram showing an operation of the flooring guide device shown in FIG.

FIG. 3 is a process explanatory diagram showing an operation of the flooring guide device shown in FIG.

FIG. 4 is a process explanatory diagram showing an operation of the flooring guide device shown in FIG. 1.

5 is a process explanatory diagram showing the operation of the flooring guide device shown in FIG. 1. FIG.

FIG. 6 is an explanatory view of a nailing work by a nailing machine equipped with a flooring guide device, showing a conventional example.

FIG. 7 shows another conventional example and is an explanatory view of a nailing operation by a nailing machine equipped with a flooring guide device.

[Explanation of symbols]

 11 nailing machine 14 nose part 19 contact arm 21 guide device for flooring 22 contact part 23 guide arm 24 pin 25 convex part 26 stopper

Claims (1)

[Claims] 1. A contact portion (22) mounted on a tip portion of a contact arm (19) provided in a nailing machine using compressed air or the like as a power source, and the contact portion (22).
Guide arm (2
3) and the tip end of the guide arm is made to project toward the nail ejection side, and the guide arm is maintained in a posture intersecting the extension line of the nail ejection direction by the biasing force of the spring, and tilted during flooring work. The distance between the contact portion of the nailing machine and the flooring base surface in the posture is regulated by the guide arm, and the distance is larger than the distance between the bottom surface of the flooring material and the upper surface of the tongue. A guide device for a flooring of a nailing machine in which a length of the guide arm is set and a tip of the contact portion is formed into a wedge shape in a side view to form an opening angle of about 90 degrees.