JP4631819B2 - Driving machine - Google Patents

Description

  The present invention relates to a driving machine such as a nailing machine and a screw driving machine, and more particularly to a driving machine for driving a wall panel to a pillar located on the back side thereof.

  In building construction, when nailing or screwing a wall panel such as veneer plywood or gypsum board on a pillar such as wood with a driving machine such as a nail driver or a screw driver, a pillar is placed on the surface of the wall panel. A line indicating the position of the mark is inked, and a stop such as a nail or a screw is driven in for the inked line (inked line).

  However, when rebuilding an existing house, it is often necessary to work without knowing the position of the pillar located on the back side of the wall when hitting the wall panel against the existing wall. It was not always easy to hit exactly.

  Even in new construction work, there are cases in which the inking work is omitted and the nailing or screwing work is performed due to the limitation of construction period or labor shortage. The nails and screws are driven in while hitting the surface of the panel and judging the position of the pillar by its sound and feel.

  However, since the above method relies exclusively on the operator's sense, there is a problem that it is difficult to be accurate.

Therefore, a proximity sensor for detecting a non-metallic beam and a metal sensor for detecting a metal beam are attached to the tip of the nose of the driving machine, and the beam (column) located on the back surface of the wall panel is made of metal by these sensors. Or a technique for detecting whether it is made of non-metal (see Patent Document 1).
Japanese Patent No. 3289777

  However, in the driving machine described in Patent Document 1, a delicate sensor is attached to the tip of the nose where a large impact is generated, and even if the detection of the crosspiece (column) is unnecessary, the sensor Since the sensor is always attached, problems such as malfunction or damage of the sensor due to impact occur.

  The present invention has been made in view of the above problems, and the object of the present invention is that the sensor unit can perform a driving operation while accurately detecting the position of the column on the back surface of the wall panel while being held with one hand. An object of the present invention is to provide a driving machine that can protect the machine from impact and prevent its malfunction and damage.

  In order to achieve the above object, according to the first aspect of the present invention, a plurality of fasteners housed in a magazine are sequentially driven one by one into a wall panel and a column located on the back side thereof, and the wall panel is formed into a column. In the driving machine for driving to the magazine, a sensor unit including a sensor for detecting the column and a display unit driven based on a detection signal of the sensor is provided on the bottom surface of the magazine.

  According to a second aspect of the present invention, in the first aspect of the present invention, the sensor unit is detachably attached to the bottom surface of the magazine.

  A third aspect of the invention is characterized in that, in the first or second aspect of the invention, the sensor unit is attached so as to be movable in the width direction of the column.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the sensor unit is provided with a surface substantially perpendicular to the injection direction of the stopper at substantially the same height as the injection port. It is characterized by.

  According to the first aspect of the invention, the position of the pillar can be accurately detected by the sensor unit while the driving machine is held, and operations such as nailing can be continuously performed. It is possible to prevent mounting failure due to misidentification and to improve work efficiency. In addition, since the sensor unit is provided on the bottom of the magazine, the impact on the sensor unit during driving is reduced, preventing malfunction and damage of the sensor unit, and the sensor unit obstructing the visibility near the injection port. It is never done.

  According to the second aspect of the present invention, since the sensor unit is detachably attached to the bottom surface of the magazine, when the sensor unit interferes with the driving operation, for example, a convex obstacle on the surface of the driven material When there is a case, or when the driving device is tilted toward the magazine at the corner of the room, the sensor unit can be detached from the driving device to perform the driving operation.

  According to the invention described in claim 3, since the position of the sensor unit can be adjusted so that the stopper is driven into the center in the width direction of the column if the activation operation is performed when the sensor detects the end portion of the stud. When performing the driving operation continuously, it is possible to save the trouble of confirming the center position of the column for each driving, and the workability and the working efficiency can be remarkably improved.

  According to the fourth aspect of the present invention, since the injection portion of the driving machine is held in a substantially vertical posture with respect to the driven material, the stopper can be stably and accurately perpendicular to the driven material. Can be driven into.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a side view of a pneumatic nailing machine as an embodiment of the driving machine according to the present invention, FIG. 2 is a cutaway side view of a sensor unit mounting portion of the pneumatic nailing machine, and FIG. 3 is a pneumatic nailing machine. FIG. 4 is a side view of the pneumatic nailing machine showing a state in which the sensor unit is removed, and FIG. 5 is a side view showing a driving posture of the pneumatic nailing machine.

  A pneumatic nailer 1 shown in FIG. 1 includes a housing 2 having a substantially T-shaped side view in which a grip portion 3 is integrally formed, and an air hose (not shown) is provided at a rear end portion of the grip portion 3. An air plug 4 is provided for connecting the two.

  Further, a nose portion 5 is attached to the lower portion of the housing 2, and an injection port 6 for guiding the nail toward the wall surface panel W1 (see FIG. 5) as a material to be driven is attached to the nose portion 5. Is formed. The nose portion 5 is connected to a cylindrical magazine 7 for receiving a connection nail (not shown) formed by connecting a number of nails and winding them in a coil shape. The magazine 7 and the nose portion 5 are connected to the nose portion 5. The nail supply guide 8 formed between the two is provided with a supply mechanism. By this supply mechanism, the nail of the connecting nail in the magazine 7 is sequentially supplied one by one along the nail supply guide 8 into the injection port 6 of the nose portion 5.

  Although not shown, the housing 2 accommodates a drive mechanism composed of a piston, a cylinder and the like, and a driver blade is connected to the piston. The driver blade is slidably guided in the injection port 6 of the nose portion 5, and the nail supplied into the injection port 6 is driven by the drive mechanism by the drive mechanism. Driven toward the tip.

  Further, a contact member 9 that operates in contact with the surface of the wall surface panel W1, which is a material to be driven, is disposed at the front end portion of the nose portion 5 so as to protrude in the front end direction of the injection port 6. Is pressed against the surface of the material to be driven and is slid, and when the trigger lever 10 disposed at the base of the grip portion 3 is operated by hand, the nail driver 1 is activated to perform a nail driving operation. Is started.

  Thus, in the present embodiment, as shown in FIGS. 1 to 3, the sensor unit 11 is detachably attached to the bottom surface of the magazine 7.

  As shown in FIG. 2, the sensor unit 11 includes a sensor 12 for detecting a column W2 (see FIG. 5) located on the back side of the wall panel W1, and a detection signal of the sensor 12 as a display means at the time of detection. The light-emitting device 13 and the alarm device 14 that are driven in this manner are incorporated.

  As shown in FIG. 2, the upper surface of the housing of the sensor unit 11 descends as an inclined surface that is inclined according to the inclination of the magazine 7, and a cylindrical boss 15 is integrally projected on the upper surface. A guide member 16 is slidably inserted along the boss 15 on the outer periphery of the boss 15, and a retaining member 17 for retaining the screw is screwed to the upper end surface of the boss 15. A spring 18 is mounted between the holding member 17 and the guide member 16, and the guide member 16 is constantly urged toward the sensor unit 11 by the spring 18.

  On the other hand, on the bottom surface of the magazine 7, two guide rails 19 having an L-shaped cross section for slidably engaging and holding the both end portions of the guide member 16 are provided to the grip portion 3 as shown in FIG. The sensor unit 11 is detachably attached to the magazine 7 by fitting the guide member 16 to the guide rails 19 from above or below in FIG.

  Further, as shown in FIGS. 2 and 3, engagement teeth 19a are formed on the lower surface of the guide rail 19, and as shown in FIG. A convex portion 20 that meshes with the engaging teeth 19 a formed on the lower surface of the guide rail 19 is integrally projected.

  As described above, when the sensor unit 11 is attached to the magazine 7 by fitting the guide member 16 held by the sensor unit 11 to the guide rail 19 on the magazine 7 side from above and below in FIG. The sensor unit 11 moves up and down with respect to the magazine 7 and the guide member 16 against the urging force of the spring 18 every time the projected portion 20 climbs over the engaging teeth 19a carved in the guide rail 19. Therefore, movement in the direction of the arrow in FIG. 3 along the guide rail 19 of the sensor unit 11 is allowed. When the movement of the sensor unit 11 is stopped at an appropriate position, the projecting portion 20 protruding from the sensor unit 11 meshes with the engagement teeth 19a formed on the lower surface of the guide rail 19, and the sensor unit 11 Fixed in position.

  Thus, when a wall panel W1 such as veneer plywood or gypsum board is struck on a pillar W2 positioned on the back side thereof as shown in FIG. 5, the nailing machine 1 is provided with a sensor attached thereto. The scanning surface 11a which is the bottom surface of the unit 11 is moved along the surface of the wall surface panel W1. Here, when the scanning surface 11a of the sensor unit 11 is in close contact with the surface of the wall surface panel W1 as shown in FIG. The height is set to be substantially the same as that of the injection port 6.

  Therefore, when the nailing operation is performed, as shown in FIG. 5, when the scanning surface 11a of the sensor unit 11 and the tip of the nose portion 5 are brought into contact with the wall surface panel W1, the nose portion 5 is substantially perpendicular to the wall surface panel W1. Therefore, the nail can be accurately driven substantially vertically into the wall surface panel W1 and the column W2. If the nailing machine 1 is moved while the scanning surface 11a of the sensor unit 11 is in contact with the wall surface panel W1, the light emitter 13 is activated when the stud W2 is positioned in front of the sensor 12 built in the sensor unit 11. Since the light is emitted and the alarm device 14 sounds, the operator can start the nail driver 1 at that position and drive the nail into the column W2 through the wall surface panel W1.

  By the way, as described above, the position where the sensor 12 of the sensor unit 11 starts detecting the column W2 is in the vicinity of the end in the width direction of the intermediate column W2. In addition, it is necessary to scan the space column W2 from the left and right and confirm the width and center position of the column W2, which takes a lot of time and effort.

  Therefore, before performing the nailing operation, the distance between the detection position of the end of the column W2 and the center in the width direction of the column W2 is confirmed, and the sensor unit 11 is moved in the left-right direction (the width direction of the column W2) by that distance. If it is offset and attached to the magazine 7, the column W2 is scanned in that state, and the start operation of the nailing machine 1 is performed at the position where the light emitter 13 and the alarm device 14 start driving, the width direction of the column W2 A nail can be driven accurately and efficiently in the center. The offset of the sensor unit 11 can be easily performed by moving the sensor unit 11 as it is along the guide rail 19. That is, each time the convex portion 20 projecting from the sensor unit 11 gets over the engaging teeth 19 a carved on the guide rail 19, the sensor unit 11 resists the urging force of the spring 18 to the magazine 7 and the guide member 16. In contrast, the sensor unit 11 is allowed to move along the guide rail 19. When the movement of the sensor unit 11 is stopped at an appropriate position, the projecting portion 20 protruding from the sensor unit 11 meshes with the engagement teeth 19a formed on the lower surface of the guide rail 19, and the sensor unit 11 Fixed in position.

  Further, for example, when there is a convex obstacle on the surface of the wall surface panel W1 which is a material to be driven, or when the driving machine 1 is driven to be tilted toward the magazine 7 at the corner of the room, the sensor unit 11 is provided. In such a case, the nailing operation can be performed with good workability by removing the sensor unit 11 from the nailing machine 1 (magazine 7) as shown in FIG.

  As described above, according to the present embodiment, the position of the pillar W2 can be accurately detected by the sensor unit 11 while the driving machine 1 is held, and the nail driving operation can be continuously performed. It is possible to prevent improper installation due to misidentification of the driving position and improve work efficiency.

  Further, since the sensor unit 11 is provided on the bottom surface of the magazine 7, the impact on the sensor unit 11 at the time of driving is reduced, and the malfunction and damage of the sensor unit 11 are prevented, and the visibility near the injection port 6 is also improved. Is not disturbed by the sensor unit 11.

  Further, since the sensor unit 11 is detachably attached to the bottom surface of the magazine 7, when the sensor unit 11 interferes with the driving operation, the sensor unit 11 is detached from the driving machine 1 and the driving operation is performed. be able to.

  Moreover, since the nose part 5 which is an injection | pouring part of the driving machine 1 is hold | maintained in the substantially perpendicular | vertical attitude | position with respect to the wall surface panel W1 which is a to-be-placed material, a nail is driven correctly correctly to the wall surface panel W1. be able to.

  In the above description, the present invention is applied to a pneumatic nailing machine. However, the present invention can be applied to electric and combustion nailing machines in the same manner. Of course, the present invention can be applied to other arbitrary driving machines for driving other stoppers such as pins, screws, and staples.

1 is a side view of a pneumatic nailer according to the present invention. It is a fracture side view of the sensor unit attachment part of the pneumatic nailer according to the present invention. It is a bottom view of the sensor unit attachment part of the pneumatic nailer according to the present invention. It is a side view which shows the state which removed the sensor unit of the pneumatic nailer which concerns on this invention. It is a side view which shows the driving | running attitude | position of the pneumatic nailing machine which concerns on this invention.

Explanation of symbols

1 Pneumatic nailer (driving machine)
DESCRIPTION OF SYMBOLS 2 Housing 3 Grip part 4 Air plug 5 Nose part 6 Injection port 7 Magazine 8 Nail supply guide 9 Contact member 10 Trigger lever 11 Sensor unit 11a Scanning surface 12 Sensor 13 Light emitter (display means)
14 Alarm (display means)
15 Boss 16 Guide member 17 Holding member 18 Spring 19 Guide rail 19a Engagement tooth 20 Convex part W1 Wall panel W2 Column

Claims (4)

In a driving machine for driving a plurality of fasteners housed in a magazine one by one into a wall panel and a pillar located on the back side of the wall panel, and driving the wall panel to the pillar,
A driving machine characterized in that a sensor unit including a sensor for detecting the pillar and a display unit driven based on a detection signal of the sensor is provided on a bottom surface of the magazine.   2. The driving machine according to claim 1, wherein the sensor unit is detachably attached to a bottom surface of the magazine.   3. The driving machine according to claim 1, wherein the sensor unit is attached so as to be movable in the width direction of the pillar. The driving machine according to any one of claims 1 to 3, wherein the sensor unit is provided with a surface perpendicular to the injection direction of the stopper at substantially the same height as the injection port.

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