JPS6371302A - Battery type box nailing machine - Google Patents

Abstract

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

Description

[Detailed description of the invention]

TECHNICAL FIELD 1 The present invention relates to a nailing platform for driving driving members such as nails and stables, and particularly to a battery-powered nailing machine that uses a battery as a power source. BACKGROUND ART Hand-held nailing tools for driving nails, stables, and other driving members by climbing onto a striking means are available in two types: electric type and pneumatic type. The former is a special public service issued in 1973-19.
As shown in Publication No. 47, it is operated using a lever/id, and the latter is operated using an air cylinder. The head part that houses the solenoid or air cylinder,
It consists of a handle part extending from the side of the head part, and the head part houses heavy objects such as solenoids and air cylinders, whereas in the electric type, there is only a handle part inside the handle part. A switch is installed and an electric wire is passed through, and even in the case of pneumatic type, high pressure air is supplied from a separate pneumatic piping, and the handle part is hollow and nothing is installed. As a result, the weight balance was poor, and especially when the tip of the head was pointing downward to drive nails into a horizontal surface, a large amount of stress was placed on the wrist of the hand holding the handle to raise the head, making it difficult to repeat the work. Moreover, the power cord, pneumatic piping hose, etc. protrude from the end of the handle, making it inconvenient to work with and carry.

[Purpose of the invention]

The present invention has been made in view of these points, and its purpose is to provide a battery that has a good weight balance, does not require a power cord or a pneumatic piping hose, and is easy to handle. It is to provide a type of nailing iso.

[Disclosure of the invention]

Accordingly, the present invention provides a head portion including a cylinder and a reciprocating piston disposed within the cylinder;
It consists of a handle section that houses a compressor that supplies compressed air to the cylinder, and a power storage section that houses the drive motor and battery for the compressor. It is characterized by having a power storage section on the side, so that heavy objects can be placed at both ends of the handle. The present invention will be described in detail below based on illustrated embodiments. @
In the embodiment shown in FIGS. 1 to 4, a nail is used as the driving member 9, and as shown in FIGS.
, a handle part 2 whose one end is connected to the side surface of the head part 1, a power storage part 3 to which the other end of the handle part 2 is connected, and between the /glue 15 in the head part 1 and the power storage part. The handle part 2 is provided with a manon 4 with a space between it and the handle part 2. As shown in FIG. 1, the head portion 1 includes a hollow housing 1.
Inside the cylinder 11, there is a striker 13 with the tip located inside the cylinder 11.
A piston 12, which is integrally provided with a piston 12, is slidably housed. The lower end opening of the syringe 11 is closed by a gunpa 19, and the upper end opening of the syringe 11 is closed by a movable play 14 which is slidable up and down in the figure and is biased downward by a spring 61. A gunpa 18 is located that can be opened and closed and that allows the movable plate 14 to pass through. Further, a space is formed between the outer circumferential surface of the cylinder 11 and the inner circumferential surface of the housing 10, and this space is divided into two chambers, an upper and a lower chamber, and the upper tank chamber 16 will be described later. It communicates with the tank chamber 26 in the handle part 2 and communicates with the inside of the lower part of the handle part 2 through communication holes 71 and 72. The handle part 2 has a built-in compressor 5 for forming compressed air to be supplied to the head part 1. A cylinder 22 and a piston 23 that constitute the compressor 5 are connected to the housing via a gear case 21. 2
A crank 25 and a connecting rod 24 connecting the crank 25 and the piston 23 are housed in the gear case 21. Inside the handle portion 2 on the head portion 1 side, the tank chamber 26 described above is provided, and a top valve is also installed. By pulling the lever 50 installed on the outer surface of the handle part 2, the shaft 5 moves upward in the figure against the return spring 51.
2 and a cylinder part 55 on which pistons 53, 54 formed at intervals on this shaft 52 slide, are C
), the Trigoo pulp is the housing 10 of the head part 1.
Between the top end of the movable plate 14 and the top surface of the movable plate 14, there is a square! i-
The shilling part 55 is provided with a control vent 56.57 which communicates the half 1 dumpling 60 with the tank chamber 16.26 through the space between the two pistons 53.54 in the lees 52. Further, the large diameter space at the upper end of the sill portion 55 communicates with the outside space through an exhaust hole 75. The power storage section 3 stores a removable pack-type battery 31 in a space inside the housing 30, a motor 32, and a power switch 33. , Gear 35 has a large diameter and large rotational moment, and also functions as a flywheel.
It is connected to the crank 25 via. Manon 4 houses a large number of driving members 9 connected by connecting members such as wires 90,
A feeding member for feeding the driving member 9 to the nozzle 15 is provided. Next, the operation will be explained. Piston 1 inside head part 1
2 is the lower space of Siringu 11 and the return air tank 1
The upper opening of the cylinder 11 is closed by a movable plate 14 biased by a spring 61. Now, when the power switch 33 is turned on, the compressor 5 driven by the motor 32 powered by the battery 31 sends air into the tank chambers IG and 26 while alternately operating the intake valve 27 and the exhaust valve 28. This tank chamber 16
．． Increase the air pressure inside 26. Also, in this state,
Air is fed into an air chamber 60 provided at the upper end of the head portion 1 through control vents 57 and 56. When driving a nail, press the lever 5 with the hand that holds the handle 2.
All you have to do is subtract 0. The glaze 52 moved up by this operation is
As shown in FIG. 2, one piston 53 is moved to the upper large diameter portion of the cylinder part 55, and
Since the control 11 ventilation hole 57 is closed in step 4, the air in the air chamber 60 is exhausted to the outside through the control ventilation hole 56 and the exhaust hole 75. As a result, the movable plate 14, which is in contact with the high pressure air in the tank chamber 16.26 through the communication space 63 provided at the upper end of the tank chamber 16, is moved by the spring 61.
The piston 12 is forced downwardly by the high pressure air, allowing the high pressure air in the tank chamber 16° 26 to flow into the upper space of the cylinder 11 through the communication space 63. 13, the driving member 9 is driven out from the nozzle 15. At this time, as the piston 12 descends, the air in the lower part of the cylinder 11 is sent into the return air tank 17. Then, when the lever 50 is released, the movable plate 14 is opened again so that the tank chamber 16.26 and the air chamber 60 communicate with each other via the control vent 56.57 due to the return of the pongee 52.
The spring 61 moves downward, closing the upper end opening of the cylinder 11 and the communication space 63, and
The upper space within the cylinder 11 is communicated with the outside through exhaust holes 74 and 73. Further, the piston 12 returns upward due to the air pressure stored in the return air tank 17 when the piston 12 descends. Is the return air tank 17 with the piston 12 at the lowest point 1? J
It communicates with the space above the piston 12 of the cylinder 11 through the M communication hole 72, but its diameter is much smaller than that of the lower communication hole 71, and the piston 1
He will not become an obstacle to 2's return. In addition, communication hole 7
2 is provided to send air from the compressor 5 to the return F-tank 17 when sufficient pressure is not stored in the return F-tank 17. In addition, in the case of this embodiment, since the volume of the return air tank 17 is made to be approximately equal to the value obtained by dividing the $ volume of the cylinder 11 by the minimum operating pressure, if it is used at the minimum operating pressure,
The air in the tank chamber 16.26 does not flow into the return air tank 17, and even when used at the maximum working pressure, almost no air flows into the return air tank 17, and the air required for one driving operation does not flow into the return air tank 17. The amount is now small. It should be noted that the compressor 5 is always operated regardless of the operation of the lever 50. Also, compressor 5
The air flowing into the compressor 5 passes from the intake hole 29 provided in the housing 20 through the inflow path 77 between the housing 20 and the gear case 21; 9. Due to operation. Heat is efficiently cooled down. The intake air may also pass around the motor 32. When using this nail gun that operates as described above, as shown in FIG.
Work is carried out by grasping the handle part 2 located between the 1S1 and the power storage part 3, and since the weight 11 is balanced against the hand gripping the handle part 2, the weight 11 is balanced downward. Even when driving nails at the target, the burden on the wrist is small and the writing performance is good.Also, the battery 31 is used as a power source, eliminating the need for a power cord, and even though it is operated by air pressure. - Handle part 2
Since high-pressure air is created by the compressor 5 installed inside, there is no need for a pneumatic piping hose. Another embodiment is shown in FIG. 5, in which a stable is used as the driving member 9, and except for this point, it is almost the same as the embodiment described above. However, the arrangement of the battery 31 and motor 32 in the power storage section 3 is slightly different, and in addition to the pinion 34 and gear 35, bevel gears 36 and 37 are included in the power transmission system from the motor 32 to the crank 25. I am using it.

【Effect of the invention】

As described above, in the present invention, a head section including a cylinder and a reciprocating piston disposed within the cylinder is disposed at one end of the handle section housing the compressor, and the compressor is mounted at the other end of the handle section. The handle is equipped with a power storage section that houses the drive motor and batteries, and the weight is well-balanced because heavy objects are located at each end of the handle. Since there is no need for a power cord or pneumatic piping hose, it is easy to handle and improves writing quality.

[Brief explanation of the drawing]

Figures 1 and 2 are longitudinal sectional views of an embodiment of the present invention, ff1
3 and 4 are perspective views of the same as above, and FIG. 5 is a longitudinal cross-sectional view of another embodiment, in which 1 is a head portion, 2 is a handle portion, and 3 is a vertical sectional view of another embodiment.
11 is a cylinder 112 is a piston, 31 is a battery, and 32 is a motor. Agent Patent Attorney Mr. Ishi 1) 7th 3rd ry4

Claims (4)

[Claims] (1) A head section that includes a cylinder and a reciprocating piston that is arranged in the cylinder, a handle section that houses a compressor that supplies compressed air to the cylinder, a motor for driving the compressor, and a battery. What is claimed is: 1. A battery-powered nail gun comprising: a power storage section storing a power storage section; a head section is provided on one end side of the handle section; and a power storage section is provided on the other end side of the handle section. (2) The head portion has an internal volume approximately equal to the value obtained by dividing the volume of the cylinder by the minimum operating pressure, and is characterized in that it is equipped with a return air tank on the outer periphery of the cylinder into which air is sent in by the operation of the piston. Claim 1
Battery-powered nail gun as described in section. (3) The battery-powered nail gun according to claim 1, wherein the handle portion is provided with an intake air flow path surrounding a component of the compressor. (4) A reduction gear with a large rotation moment is provided in the power transmission system between the motor arranged in the power storage section and the compressor arranged in the handle section. The battery-powered nail gun according to item 1.