JP2778468B2 - Guide device for flooring of nailing machine - Google Patents

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 flooring material.

[0002]

2. Description of the Related Art A conventional guide device for flooring of a nailing machine will be described with reference to FIGS. In FIG. 6, reference numeral 1 denotes an air-driven nail driver, and reference numeral 2 denotes a nail or staple magazine. 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 approximately 45 degrees with respect to the nail injection direction to form a guide surface 4a.
Are formed. When installing the flooring material 5,
The nailing machine 1 is inclined at an angle of approximately 45 degrees, and the guide surface 4a of the flooring guide device 4 is brought into contact with the upper surface of the flooring material 5, and the nailing machine 1 is slid to the worker side (right in the figure). By moving, the tip corner of the nose portion 3 is positioned in contact with the upper edge of the flooring material 5. When the trigger lever 6 is operated, the nail N or the staple is moved to the corner of the tongue 5 a of the flooring material 5. Into the base material 7 at an inclination angle of approximately 45 degrees.

FIG. 7 shows another guide device 8 for flooring. The guide device 8 is fixed to the front surface of the nose portion 3 of the nailing machine 1 on the contrary to that shown in FIG. When the nail driving machine 1 is slid toward the flooring material 5 while the bent lower guide surface 8a is in contact with the base material 7, the guide device 8 comes into contact with the tip surface of the tongue 5a of the flooring material 5. Is positioned.

There are several types of heights from the bottom surface of the flooring material 5 at which nails are driven to the upper surface of the tongue 5a depending on the standard, and FIGS. 6 and 7 show FIGS. The driving device 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 prior art flooring guide device shown in FIG. 6, when the nailing machine is aligned with the nailing position of the flooring material, the nose portion is formed at the upper edge of the flooring material. May damage the upper edge. Although there is no danger of damaging the flooring material in the one shown in FIG. 7, it is necessary to adjust the driving position each time according to the thickness of the flooring material similarly to the one shown in FIG. Yes, handling is complicated.

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

[0007]

SUMMARY OF THE INVENTION The present invention is proposed to achieve the above-mentioned object, and is mounted on a distal end portion of a contact arm provided in a nailing machine powered by compressed air or the like. A contact portion, and a guide arm pivotally mounted on the upper portion of the contact portion so as to be rotatable in the front-rear direction. The distal end of the guide arm is protruded toward an injection side of the nail, and the guide arm is nailed by urging of a spring. Is maintained at a position that intersects with the extension line of the injection direction, and the guide arm regulates the distance between the contact portion of the nailing machine and the flooring base surface in the inclined position during flooring work, and the distance is set at the floor. Along with setting the length of the guide arm to be greater than the distance between the bottom surface of the upholstery and the top surface of the tongue,
An object of the present invention is to provide a guide device for flooring of a nailing machine in which a tip of the contact portion is formed in a wedge shape in a side view and an opening angle thereof is formed at substantially 90 degrees.

[0008]

When the guide device for flooring of the present invention is mounted on 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 the nailer is slid while keeping the lower end in contact with the flooring base, the nailer moves horizontally while maintaining a certain height I do. When the side surface of the guide arm collides with the front end of the tongue of the floor covering to which the nail is to be driven, the guide arm, which is held in the hanging posture by the spring, is pressed by the tongue and rotated, and the guide arm keeps a certain amount. 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 contact portion is formed in a wedge shape with a tip of approximately 90 degrees, and the contact portion matches the corner formed by the upper vertical surface of the flooring material and the upper surface of the tongue. The nail ejection port is located at the base of the tongue while being maintained in the driving posture.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS. FIG. 1 shows a known air-driven nailing machine 11, in which a head portion 12 and a grip 13 are integrally formed, a plunger is loosely fitted in a cylinder (not shown) in the head portion 12, and is connected to the plunger. The driven driver slides inside the nose portion 14 and drives the nail into the object. The high-pressure air, which is the driver driving source, is connected to a hose connected to an air compressor by an air plug 1 at the end of the grip 13.
5, the plunger is driven by the operation of the trigger lever 16, and the plunger is driven. After one driving operation, the plunger returns to the standby position and stops. The nail is moved from the magazine 18 connected to the back of the nose portion 14 to the nose portion 1.
4.

A contact arm 19 which slides along the nose portion 14 is mounted on the nose portion 14, and an upper end 19a of the contact arm 19, which is a safety device, is pivotally mounted in a trigger lever 16 having an open rear surface. The free arm 20 is in contact with the distal end. 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. The free arm 20 is rotated by pushing the guide arm 21 against the object to be driven and pushing the contact arm 19. In this state, the trigger arm 16 is pulled, and the free arm 20 opens and closes the open / close valve 17 of the head 12. Is released and the plunger is driven.

The guide device 21 includes a contact portion 22 formed in a wedge shape having an opening angle of approximately 90 degrees at an end thereof so as to be able to abut against a base portion of the tongue of the flooring material at an angle of 45 degrees. And a guide arm 23 pivotally mounted on the rear side. The guide arm 23 is a torsion coil spring, the coil portion of which is engaged with the pin 24 and one end of which is locked to the projection 25 of the contact portion. The intermediate portion of the applied linear portion on the other end side is pressed against the stopper 26 and held in a posture crossing the nail driving direction at an angle of about 45 degrees. The length of the guide arm 23 is, 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 t1 between the bottom surface of the floor covering 5 and the upper surface of the tongue 5a.
It is formed to be larger than that.

Next, the operation of the guide device 21 will be described with reference to FIGS. First, as shown in FIG.
The nailing machine 11 is held with the nose portion 14 having a driving angle of about 45 degrees, and the leading end 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 flooring material 5 while rubbing the surface of the base material 7 with the tip of the guide arm 23 while maintaining the inclined posture of the nailing machine 11, FIG. The guide arm 23 comes into contact with the front surface of the tongue 5a, and the guide arm 23 is rotated with the movement of the nailing machine 11 as shown in FIG.

The nailing machine 11, which has been maintained at a constant height by the guide arm 23,
Is rotated down, and the contact portion 22 lands on the upper surface of the tongue 5a as shown in FIG. Further, by continuing the movement of the nailing machine 11, the wedge-shaped tip of the contact portion 22 comes into contact with the upper surface of the tongue 5a of the floor covering 5 and the upper front portion as shown in FIG. The movement of the driving machine 11 is stopped, and the nail injection port of the nose portion 14 is aligned with the driving position. By pressing the nailing machine 11 in the injection direction in this state, the guide device 21 and the contact arm 19 are pushed into the nailing machine 11 and the trigger lever 16
Is operated, the nail or staple is set at a predetermined angle to 5a.
The flooring material 5 is fixed by being driven into the floor base material 7 from the corner of.

As described above, by moving the nailing machine 11 while rubbing the base material 7 with the guide arm 23, the contact portion 22 is automatically aligned with the target corner of the tongue 5a. And the distance t between the bottom surface of the flooring material 5 of various standards having different thicknesses and the upper surface of the tongue 5a,
As shown in FIG. 2, by setting the length of the guide arm 23 so that the height t1 of the contact portion 22 is increased, it is possible to cope with all flooring materials without adjustment.

The present invention is not limited to the above-described embodiment, but can be applied to a stapling 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]

According to the present invention, 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 abuts against the tongue of the flooring material, the nailing machine descends so that the nose portion and the nail driving portion of the tongue coincide with each other and are automatically positioned. 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 achieved with one type of guide device. It has versatility that can handle materials and can contribute to improvement of work efficiency.

[Brief description of the 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. 1;

FIG. 3 is a process explanatory diagram showing the operation of the flooring guide device shown in FIG. 1;

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

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

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

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]

 DESCRIPTION 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)

(57) [Claims] 1. A contact part (22) mounted on a distal end of a contact arm (19) provided in a nailing machine powered by compressed air or the like, and the contact part (22).
Guide arm (2)
3) The tip of the guide arm is protruded toward the nail ejection side, and the spring is biased to maintain the guide arm in a position intersecting the extension of the nail ejection direction, and the inclination 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 flooring guide device for a nailing machine, wherein a length of the guide arm is set, and a tip end of the contact portion is formed in a wedge shape in a side view and an opening angle is formed to be substantially 90 degrees.