JP4424772B2 - Nailer - Google Patents

Description

[0001]
[Field of the Invention]
The present invention relates to a nailing machine used when a floor panel is fixed to a floor by hitting staples with compressed air.
[0002]
[Prior art]
Conventionally, a nailing machine for construction is generally called an air nailer and is widely used. When applying the floor base, the worker had to do the nailing work in a crouched position and was forced to work hard.
In order to solve this problem, a nailing machine having a wheel and a handle and driven each time the wheel rotates by a certain angle is proposed in the invention shown in Japanese Utility Model Laid-Open No. 4-2203.
[0003]
[Problems to be solved by the invention]
However, in this prior art, it is impossible to nail unless the wheel rotates to a certain angle. For example, when nailing is required at an arbitrary place, for example, a floor panel of a house, especially a base panel. It was unsuitable for work (eg veneers, control panels). Accordingly, an object of the present invention is to provide a nailing machine that enables nailing to an arbitrary place in a standing posture.
[0004]
[Means for Solving the Problems]
Accordingly, the invention according to claim 1 is made and includes a body having wheels, a handle erected on the body, a firing operation unit attached to the handle, a trigger, and the trigger. The only air nailer that is driven by the operation of the compressed air supplied into the cylinder to drive the driver and allow the staples to be ejected, and a detachable member that detachably attaches the air nailer to the body. An air actuator that drives the trigger with air in response to an operation of the firing operation unit, and a wire that connects the firing operation unit and the air actuator, and the wire is pulled by the operation of the firing operation unit The air actuator switch is pushed forward by the wire so that the air actuator is moved forward. In response to the operation of the firing operation unit, the mounting position to the handle of the firing operation unit is a nailing machine, which is a steerable position in standing. Thereby, it is possible to nail to an arbitrary place in a standing posture.
[0005]
According to a second aspect of the invention, the air actuator is connected to the air compressor and the air valve which operates in response to the operation thus the switch of the firing operation portion is pushed down, and connected to the air valve, the air valve An air cylinder driven in response to a response; a slider driven to reciprocate by the air cylinder; a motion direction conversion mechanism that converts the reciprocating drive of the slider into a vertical drive; and a trigger driven by the motion direction conversion mechanism. The nail driver according to claim 1, further comprising: a rod that moves up and down. As a result, the object of the first aspect is achieved, and there are few failures and it is possible to contribute to energy saving.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the nailing machine 1 is provided with a base plate 7 having two casters 3 as front wheels and two wheels 5 having large diameters as rear wheels, and is erected on the base plate 7 obliquely. A handle 9 made of a pipe bent in a U-shape, a firing lever 11 attached to the upper portion of the handle 9, and a trigger 131 are driven by air in response to the operation of the staple 133 (FIG. 7A). , (B)), the detachable member 15 attached to the base plate 7 and detachably attachable to the base plate 7, the trigger 131 being driven in response to the operation of the firing lever 11, and the base plate 7 And an air actuator 17 attached to the. Hereinafter, each part will be described in detail.
[0007]
In the present embodiment, the above-described detachable member 15 includes a link 15a connected by four pins and fixed to the base plate 7, and the positions of the upper two pins are changed so that the lever 15b and the clip 15c. And connected to In FIG. 5, when the lever 15 b is rotated counterclockwise, the clips 15 c are rotated clockwise to approach each other, the clip 15 c is detached from the air nailer 13, and the air nailer 13 can be separated from the base plate 7. is there. On the other hand, when the lever 15b is rotated clockwise, the clips 15c are rotated counterclockwise to be separated from each other, and the air nailer 13 is locked on the hook 15d (see FIG. 1) and placed on the base plate 7, and the clip The mechanical structure is such that the air nailer 13 can be fixed by pressing it at 15c. The removable type is for replenishment of the staple 133. Other structures are possible for the detachable member.
[0008]
The air actuator 17 is disposed beside the air nailer 13 and is connected to an air compressor (not shown) and a hose 21 as shown in FIG. 3, and is a pin plunger type mechanical air valve 23 that responds to the operation of the firing lever 11. A flap 27 attached to the upper part of the mechanical air valve 23, which is composed of an upper piece 27a and a lower piece 27b and whose right end is pivotally attached to enable the push button 25 of the mechanical air valve 23 to be depressed, and the left end of the upper piece 27a A wire 29 having one end connected to the portion 27 c and the other end connected to the firing lever 11, a double-acting small air cylinder 33 connected to the mechanical air valve 23 by two hoses 31, 32, and an air cylinder 33 Is connected to the rod 33a and reciprocated as shown by the arrow in FIG. Is moved forward (rightward), the slider 35 is inclined, the movement direction conversion mechanism 37 that converts the left and right reciprocating drive of the slider 35 into vertical drive, and the trigger 131 is driven by the movement direction conversion mechanism 37. A rod 39 (see FIGS. 1 and 5) that moves up and down is provided. The air cylinder 33 is fixed horizontally to the base plate 7, and the mechanical air valve 23 is fixed obliquely on the side surface of the vertical plate 57 erected from the base plate 7, and the square cover 59 is detachably attached to the air actuator 17. Covering. The length of the wire 29 is usually set so that the upper piece 27a is in a substantially horizontal state and the lower piece 27b is inclined and fixed to the lower left, and the upper piece 27a is movable as shown by an arrow in FIG. It has become. The wire 29 is passed through a hole in a guide 30 disposed below the flap 27, and the wire 29 is pulled vertically downward. The wire 29 is protected by a tube 29a.
[0009]
As shown in FIG. 6, the mechanical air valve 23 includes a push button 25, an R port, a P port, an S port, an A port, and a B port biased by a spring. The P port is connected to the hose 21, the R port is a discharge port, and the A port and the B port are connected to the hoses 31, 32, respectively. The connection state is switched by pushing down the push button 25, which will be described in detail later.
[0010]
The movement direction changing mechanism 37 is inserted into the rod guide 45 formed with a square vertical hole 43 (see FIGS. 1 and 2) and fixed to the vertical plate 57, and the vertical hole 43 (see FIGS. 1 and 2). A vertical rod-shaped through hole 47 is formed at the center and is vertically movable, and a wheel 51 that is in contact with the upper side of the slider 35 and is rotatably attached to the base end of the rod 39. It is equipped with. The end of the horizontal rod 39 is fixed to the lower end of the vertical rod 49. A screw 55 passes through the through hole 47 in the horizontal direction, and the screw 55 is fixed to the vertical plate 57 with a nut 56 (see FIG. 1), and the upper and lower limits of the rod 49 are regulated. 59 can be protruded to the outside through a round hole 54 (see FIG. 1). A vertical elliptic hole 52 is formed at a position corresponding to the wheel 51 below the rod guide 45 of the vertical plate 57, and the rod 39 is penetrated in the horizontal direction (see FIG. 1).
[0011]
The pressure of the air compressor (not shown) is usually set to ⁴ to 8 kgf / cm ² . Further, as shown in FIG. 1, an air compressor (not shown) is connected to a hose 61, and this hose 61 is bifurcated and connected to a hose 21 and a hose 135 at a branching portion 63, and an air nailer 13 and an air cylinder, respectively. 33 can be supplied with air. The hose 135 includes a coupler 136 that is detachably connected to the air nailer 13.
[0012]
Since the structure of the air nailer 13 is known, it will be briefly described. As shown in FIGS. 7A and 7B, the air nailer 13 includes a trigger 131, a valve 132 interlocked with the trigger 131, an air chamber 137 into which compressed air from an air compressor (not shown) flows from a hose 135, A cylinder 139 communicating with the air chamber 137, an air chamber 141 provided on both sides of the cylinder 139, a piston 143 arranged to be movable up and down in the cylinder 139, and a driver 145 extending downward from the lower end of the piston 143 , A staple chamber 147 for filling the staple 133, and a head valve 149 that is disposed above the cylinder 139 and can move up and down.
[0013]
(Operation of nailer 1)
Next, the operation when the nailing machine 1 is applied to nailing a ground panel (not shown) on the floor will be described. The initial state of the air nailer 13 is as shown in FIG. When driving the staple 133, when the firing lever 11 in FIG. 1 is gripped, the wire 29 is pulled, and as shown in FIG. 3, the upper piece 27a is rotated downward, the push button 25 is pushed down, and air is supplied from the hose 31. Then, air is exhausted from the hose 32. Then, the slider 35 moves forward to the right, and the wheel 51 is pushed up vertically while rotating counterclockwise. As a result, the rod 39, the rod 49, and the wheel 51 rise together, and the rod 39 triggers. 131 is pushed up and stopped at the upper limit position.
[0014]
Accordingly, as shown in FIG. 7A, the valve 132 is raised in conjunction with the trigger 131, air is released from the head valve 149, the head valve 149 is raised, and the compressed air passes through the lower part of the head valve 149, and the cylinder 139. Flow into. Then, the piston 143 is pushed down, the driver 145 pushes out the staple 133, and is driven into the base panel (not shown). Part of the air in the cylinder 139 used for driving flows into the air chambers 141 on both sides.
[0015]
Next, a standby state, that is, preparation for driving the next staple 133 is entered. When the firing lever 11 is released, the wire 29 is loosened, and as shown in FIG. 3, the upper piece 27 a is rotated upward to return, the push button 25 is pushed up and returned, air is supplied from the hose 32, and air is supplied from the hose 31. Air is exhausted. Then, the slider 35 moves backward in the left direction, and the wheel 51 descends vertically while rotating in the clockwise direction. With this, the rod 39 is lowered to release the trigger 131 and stop at the lower limit position.
[0016]
When the trigger 131 is released in this way, as shown in FIG. 7B, the valve 132 is lowered in conjunction with the trigger 131, the compressed air flows into the upper portion of the head valve 149, and the head valve 149 is pushed down. Air passes through the inside of the valve 149 and exits from the exhaust port. The piston 143 attempts to return upward, the air accumulated in the air chamber 141 flows into the cylinder 139, the piston 143 is pushed up, and the driver 145 returns to its original position.
[0017]
(Effect of embodiment)
According to the nailing machine 1 described above, the following effects are produced.
(1) In an arbitrary position on the floor in a standing posture, the nailing to the base panel can be performed by simply grasping and releasing the firing lever 11.
(2) Since the drive source is unified with air, no power source or power cord is required, improving energy efficiency and workability.
(3) Since the structure is simple, the cost is reduced.
(4) Workability is good because it is lightweight.
(5) Since the launch lever 11 is connected to the flap 27 by the wire 29, the drive source is unnecessary and there is almost no failure as compared with an electric type or the like. Moreover, since the air actuator 17 is a mechanical type, there is almost no failure.
(6) Since the air nailer 13 is fixed to the base plate 7, the driving accuracy is high.
[0018]
The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and many technical changes are made without departing from the technical idea of the present invention. Of course you can get. For example, the air nailer 13 of the nailing machine 1 of this embodiment is an example, and other appropriate structures can be adopted.
[0019]
【The invention's effect】
According to the first and second aspects of the invention, it is possible to provide a nailing machine that enables nailing to an arbitrary place in a standing posture, and its industrial utility value is great.
According to invention of Claim 2, there are few failures, it can contribute to energy saving, and workability | operativity is good.
[Brief description of the drawings]
FIG. 1 is a perspective view of a nail driver according to an embodiment of the present invention.
FIG. 2 is a perspective view of the nailing machine as seen from another angle.
FIG. 3 is a front view showing the inside of an air actuator of the nailing machine.
FIG. 4 is a rear view showing an air actuator of the nailing machine.
FIG. 5 is a front view showing an air actuator of the nailing machine.
FIG. 6 is a circuit diagram of a valve of the air actuator.
FIGS. 7A and 7B are explanatory views showing the operation of the air nailer of the nailer. FIGS.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Nailer 3 Caster 5 Wheel 7 Base plate 9 Handle 11 Launch lever 13 Air nailer 15 Detachment member 15a Link 15b Lever 15c Clip 15d Hook 17 Air actuator 21 Hose 23 Mechanical air valve 25 Push button 27 Flap 27a Upper piece 27b Lower piece 27c Left end 29 Wire 29a Tube 30 Guide 31, 32 Hose 33 Air cylinder 33a Rod 35 Slider 37 Motion conversion mechanism 39 Rod 43 Standing hole 45 Rod guide 47 Through hole 49 Rod 51 Wheel 52 Vertical elliptical hole 54 Round hole 55 Screw 56 Nut 57 Vertical Plate 59 Cover 61 Hose 63 Branch 131 Trigger 132 Valve 133 Staple 135 Hose 136 Coupler 137 Air chamber 139 Cylinder 141 Air chamber 143 Pin Ton 145 driver 147 staple chamber 149 head valve

Claims (2)

A body with wheels,
A handle erected on the body;
A firing operation unit attached to the handle;
A unique air nailer that has a trigger and triggers the operation of the trigger so that the supplied compressed air enters the cylinder and the driver is driven to repel the staples;
A detachable member for detachably attaching the air nailer to the body;
An air actuator that drives the trigger with air in response to an operation of the firing operation unit;
A wire connecting the firing operation unit and the air actuator;
The wire is pulled by the operation of the firing operation unit, and the air actuator is pressed down by the wire so that the air actuator responds to the operation of the firing operation unit,
The nailing machine according to claim 1, wherein a position where the firing operation unit is attached to the handle is a position which can be operated in a standing position . The air actuator is
Is connected to the air compressor and the air valve which operates in response to the firing operation portion Therefore the switch operation is depressed,
An air cylinder connected to the air valve and driven in response to a response of the air valve;
A slider that is reciprocated by the air cylinder;
A motion direction conversion mechanism that converts the reciprocating drive of the slider into a vertical drive and transmits it;
A rod driven by the movement direction conversion mechanism to move the trigger up and down;
The nail driver according to claim 1, further comprising:

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