JP2004209567A - Driving machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a driving machine with a lighting device with sufficient operability which is easily adopted for a compression air type driving machine using no electricity. <P>SOLUTION: A light is constituted on a lever 8 turnably fixable to a lower part of a grip part of a handle 5 at a plurality of angle positions. An LED 14 for emitting yellow light and a power source 20 thereof are provided to irradiate the driving position. A predetermined gap is provided between the lever 8 and a body 1 in order to use the lever 8 as a hook for hanging down a body of the driving machine, i.e., the body 1. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a driving machine provided with a light for irradiating near a tip end of a driving machine and a material to be driven.
[0002]
[Prior art]
An example of a conventional driving machine will be described.
A driving machine is a tool that uses a compressed air as a power source to rapidly operate a piston to drive a nail or the like or to tighten a screw while driving. When working in places with no lighting equipment, such as the attic or under the floor, or in other dark places where light is difficult to reach, usually work temporarily after installing temporary lighting to ensure a certain level of brightness. I had to. Also, since the worker works while moving to various positions and angles, the hand often becomes the shadow of the lighting as the work progresses, changing the position of the lighting and working in an unreasonable posture each time I had to. Further, since the driving machine does not use electricity for power, it is difficult to incorporate a lighting device requiring a power supply.
[0003]
A tool provided with a conventional lighting device will be described with reference to FIGS.
FIG. 8 shows an external view of a power tool provided with a light. The power tool is a tool that uses a battery 27 as a power source, transmits rotational force to a tip tool holding unit 25 via internal mechanical components, and tightens and loosens a screw or the like. In a dark place where light does not reach, such as an attic or under the floor, a light 26 is provided above the body 1 so that a work place can be brightly illuminated. FIG. 9 shows the structure described in Japanese Utility Model Laid-Open Publication No. 1-117882, in which the light 26 is provided in front of the trigger 4 below the body 1.
[0004]
As other types, a light is provided below a grip portion of a tool body (for example, see Patent Documents 1 and 2), and a light is provided at a tip of a flexible shaft so that an illumination direction can be adjusted (for example, Patent Document 1). 3).
[0005]
Patent Document 1
Japanese Unexamined Utility Model Publication No. 3-79279, Patent Document 2
JP-A-10-44064 Patent Document 3
JP 2001-300867 A
[Problems to be solved by the invention]
The power tool provided with the light shares the power supply of the light 26 with the battery 27 which is the power supply of the tool body.
8 and 9, since the inside of the tool body is wired, there is a possibility that problems such as poor conduction of the light 26 and disconnection of the connection member may be caused by vibration generated during the tool operation.
[0007]
Patent Literature 1, FIGS. 8 and 9 and Japanese Utility Model Application Laid-Open No. 55-151409 are provided with a switch for turning on / off the light. There was also a problem that it did not.
[0008]
The lights described in Patent Documents 1 and 2 and the like described above were hard to see because the light irradiation angle was fixed, and when mounted on products having different overall lengths, the vicinity of the tip of the tool could not be illuminated.
In the past, a white incandescent lamp was generally used, but the contrast seen by light is weak. As a result, when trying to obtain the required brightness, it is necessary to increase the wattage of the light. The batteries that are not used also become large, and the operability deteriorates.
[0009]
In addition, when working in a high place and in a dim place while climbing a stepladder, etc., in addition to the lighting device, it is difficult to place the main unit. However, if both are separately attached to the main body, the main body becomes large and expensive.
[0010]
The problems of the above prior art are summarized as follows.
(1) A compressed air type tool such as a driving machine does not use electricity for its operation, so it is difficult to secure a power source for the light.
(2) Make the hook and the lighting device small and out of the way.
(3) When the direction of light irradiation is fixed, it is difficult to change the position where the light hits according to the length of the overall length of the tool main body, so that it is difficult to see.
(4) When the light is directly mounted, vibration is applied to the light at the time of tool work, and conduction failure is likely to occur.
(5) With white light, the contrast is weak, and the light source or power supply becomes large.
(6) If the on / off switch of the light source is merely on / off, the user may forget to turn off the light source, and the battery may run out when the user wants to use the battery.
[0011]
An object of the present invention is to solve the above problems and to provide a driving machine with a light that is easy to see, has high reliability, and has good operability.
[0012]
[Means for Solving the Problems]
The above object is achieved by the following means for each of the objects.
(A) As a solution to the above (1) and (2), an appropriate gap is provided between the lever and the body, and the lever incorporating the lighting device and its power supply is also used as a hook.
(B) As a solution to the above (3), a lever is provided below the grip portion so as to be rotatable and can be fixed at a plurality of angular positions, and a light is attached thereto.
(C) As a solution to the above (4), the lever is fixed between the lever and the main body via an elastic body.
(D) As means for solving the above (3) and (5), a structure is adopted in which the length of the lever is variable. (E) As a solution to the above (5), a light emitting diode with low current consumption is used, the battery is downsized, and the emission color is yellow instead of white to make the contrast clear and easy to see.
(F) As a solution to the above (6), a timer circuit is built in the turning on and off of the light source, and the light is automatically turned off after a certain period of time.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
One embodiment of the present invention in which a lighting device is applied to a compressed air type driving machine will be described with reference to FIGS. FIG. 1 shows a driving machine including a body 1, a nose 2, a magazine 3, and the like. A body that is formed by the body 1 has a piston that is rapidly moved by compressed air as a power source and drives a nail, a cylinder that guides a reciprocating movement of the piston, and a main valve unit that flows compressed air into the cylinder (not shown). ) And the like, and a handle portion 5 hanging down from the body portion contains a control valve for controlling the operation of the main valve, a trigger 4 for opening and closing the control valve, and a pressure accumulating chamber for storing compressed air. Below the nose 2 arranged in contact with the body 1, a magazine 3 for accommodating a plurality of nails connected at regular intervals is arranged.
[0014]
The driving machine is provided with a lever 8 which is rotatable and has means for fixing which will be described below. The shaft 9 of the lever 8 is made to pass through the cylindrical lever support 6 and the spring 7 provided so as to communicate with the body 1, and the retainer 10 for preventing the spring 7 from moving in the axial direction is attached to the shaft 9. By fixing with the buried nut 13, the lever support 6 is held by utilizing the axial force acting on the spring 7. The lever supporting portions 6 are provided with engaging teeth 11 on a part of their inner surfaces, and the force acting in the axial direction of the spring 7 which is always biased between the lever supporting portion 6 and the retaining holding portion 10. Accordingly, the fitting teeth 12 (see FIG. 6) and the engaging teeth 11 provided on the shaft portion 9 always maintain the meshed state. As a result, the rotation of the lever 8 is stopped.
[0015]
Next, the structure of the lever 8 will be described with reference to FIG. The lever 8 includes an LED 14 that emits yellow light, a lens 15 made of a transparent resin plate or the like that protects the LED 14, and a power supply 20 such as a storage battery or a dry battery. On one side of the lever 8, a push button switch 16a for turning on the LED 14 and a push button switch 16b for turning off the LED 14 are provided. The switches 16a and 16b and the LED 14 are mounted on a substrate 21. The substrate 21 is provided with a semiconductor timer circuit 23 that automatically turns off the light three minutes after the LED 14 is turned on by the switch 16a. Since the LED 14 and the semiconductor circuit of the lever 8 are relatively thin, the LED 14 and the semiconductor circuit are disposed on the handle portion of the hook to be hooked by the lever 8. 9 is formed with a fitting tooth 12 which meshes with the engaging tooth 11 of the lever support portion 16.
A washer of a rubber elastic body 17 having a thickness of about 2 mm is provided at the base of the shaft portion 9.
[0016]
Next, the operation of the lighting device will be described.
When the lever 8 is pulled upward by about 5 mm in FIG. 2, the engagement between the engagement teeth 11 and the engagement teeth 12 is released, and the lever 8 is moved to any position clockwise about the shaft 9 as shown in FIG. Rotated. 4 and 5 show the irradiation state when the overall length of the driving machine is different. When the irradiation position is close (the overall length of the driving machine is small), the angle of the lever 8 is turned large (55 degrees in FIG. 4) to irradiate, and the irradiation position is far away (the overall length of the driving machine). (Large), the angle of the lever 8 is turned small (40 degrees in FIG. 5) to irradiate and irradiate, so that it is possible to irradiate the entire length of the driving machine and work comfortably with various driving machines. can do.
When the overall length of the driving machine is short as shown in FIG. 4, irradiation is performed at a large angle, and when the overall length of the driving machine is long as shown in FIG. 5 (when the distance to the workpiece 28 is long), irradiation is performed at a small angle. By releasing the hand, the lever 8 is returned to the direction in which the spring 7 returns to the original steady state, so that the engagement teeth 11 and the engagement teeth 12 are meshed again at that position, so that they cannot rotate and can be fixed. Thus, even if there is a vibration during the operation, the lever 8 engages and does not move, so that the light is easy to see without blurring.
[0017]
Further, in order to eliminate the difficulty of use depending on whether the operator who uses the driving machine is right-handed or left-handed, the lever 8 and the spring 7 can be removed simply by removing the retaining retaining portion 10. By taking out the stop holding part 10, it is possible to assemble it on the opposite side of the driving machine main body.
[0018]
Next, the illumination is turned on by pressing the ON switch 16a in FIG. 6, and the yellow LED 14 is turned on. To turn off the light, the OFF switch 16b may be pressed. However, if the switch is forgotten to be turned off, the timer circuit 23 automatically turns off the light after three minutes, thereby preventing the battery 20 from being consumed due to forgetting to turn off the light. By irradiating the LED 14 with yellow light instead of white light, the contrast can be clarified, and the tip of the irradiating driving position and the material to be driven can be clearly seen. In addition, since the contrast is large, the amount of electricity consumption is small, and the battery 20 and the circuit can be downsized.
[0019]
Next, a configuration for reducing the vibration applied to the lever 8 will be described. FIG. 2 is a sectional view taken along line AA of FIG. The recess 8a is integrated with the lever end surface which comes into contact with the body 1 by providing a projection on the elastic body 17 and locking the same, so that the inner surface of the retaining holding portion 10 in which the coin groove is buried and the lever support portion 6 The elastic body 17 is always brought into contact with the end face of the lever support 6 by the load of the spring 7 placed on the lever 7. Since the elastic body 17 is provided so as to sandwich the both ends of the lever support portion 6, severe vibrations generated from the driving machine main body when the driving machine is used can be used. (Between the main body of the embedded machine and the lever 8) to suppress vibration.
As a result, even if the lighting device is applied to a driving machine that generates severe vibration, poor conduction of the LED 14 and disconnection of the connection member can be prevented. Since the lever 8 has a built-in power source 20 dedicated to light, it can be mounted on a compressed air type driving machine having no power source. In addition, since it is detachable, it can be used as a hand light. Also, since an appropriate distance L of about 20 mm is provided between the lever 8 and the grip portion of the main body, a function of a hook for hooking the driving machine main body to a waist belt, a stepladder or the like of an operator can be provided. It does not matter where to place the driving machine. In addition, since the LED 14, the substrate 21, and the battery 20 are laid out as shown in FIG. 6, the hook is thin and small, and the two functions of the hook and the lighting are combined into one. It is convenient.
[0020]
FIG. 7 shows a case where the length of the rotatable latch lever 8 which can be easily changed with respect to the driving machine main body is expanded and contracted. The lever 8 includes a telescopic switch 22 for making the lever 8 extendable, a movable part 24 for making the distal head 23 movable, and a lever 8 which is retractable to make the distal head 23 movable. Then, the tip head portion 23 is brought closer to the tip of the driving machine. Thereby, light can be irradiated in a closer form, so that it is easy to see.
[0021]
【The invention's effect】
According to the present invention, the lever is provided at the lower part of the grip portion so as to be rotatable and can be fixed at a plurality of angular positions, and the light and the power supply are attached to the lever. Since it can be adopted and the irradiation angle can be changed, it can be adjusted to an optimum position corresponding to a driving machine having a different overall length.
By providing a gap between the lever and the body and using the lever in which the lighting device is built-in as a hook, the hook and the light can be easily used at a high place and can be reduced in size.
Since the elastic member is fixed between the lever and the driving machine body, the vibration during the operation is hardly transmitted to the light and the circuit, the disconnection can be prevented, and the reliability can be improved.
[0022]
In addition, since the length of the lever is variable, the illuminated portion can be adjusted according to the length of the overall length of the driving machine, so that it is easy to see, and the light source can be directed to the work site.
[0023]
The size of the battery can be reduced by using a light-emitting diode that consumes less current, and the emission color can be made yellow instead of white, so that the contrast can be made clear and the irradiation device can be further downsized. Furthermore, a timer circuit is built in to turn off the light source, and the light can be automatically turned off after a predetermined time has elapsed, so that battery consumption can be prevented.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of the driving machine of the present invention.
FIG. 2 is a sectional view taken along line AA of FIG.
FIG. 3 is a perspective view showing a body and a lever unit of FIG. 1;
FIG. 4 is an explanatory side view showing an irradiation state of the driving machine of the present invention.
FIG. 5 is an explanatory side view showing an irradiation state of the driving machine of the present invention. FIG. 6 is a cross-sectional view showing one embodiment of a lever constituting the present invention.
FIG. 7 is a perspective view showing another embodiment of the driving machine of the present invention.
FIG. 8 is a perspective view showing an example of a conventional power tool with a lighting device.
FIG. 9 is a perspective view showing another example of a conventional power tool with a lighting device.
[Explanation of symbols]
1 is a body, 2 is a nose, 3 is a magazine, 4 is a trigger, 5 is a handle, 6 is a lever support, 7 is a spring, 8 is a lever, 9 is a shaft, 10 is a retainer, and 11 is a lock. An artificial tooth, 12 is a fitting tooth, 13 is a nut, 14 is an LED, 15 is a lens, 16 is a switch, and 17 is an elastic body.

Claims (7)

A driving machine that is driven using compressed air as a power source and includes a body that incorporates a piston for driving a nail or the like or a piston for tightening while driving a screw, and a handle grip unit provided integrally with the body,
In the lower part of the grip portion, a light having a means capable of arbitrarily adjusting the irradiation angle corresponding to several types of driving machines having different overall lengths and a means for fixing the position at that position is provided, and a battery serving as a power supply of the light is built in. Features a driving machine. 2. The driving machine according to claim 1, wherein an interval is provided between a lever in which the light is stored and a handle grip, so that the lever can be used as a hook for hanging the main body. A lever support portion provided below the grip portion and having an engagement tooth; a lever having a shaft portion provided with a fitting tooth that is inserted into the lever support portion and meshes with the engagement tooth; An elastic body that urges the grip portion side, and a retaining holding portion that moves the lever in the axial direction against the elastic body to release the engagement, and grips the lever via a lever support portion. 2. The driving machine according to claim 1, wherein the driving machine can be rotatably fixed to the portion. 3. The driving machine according to claim 2, wherein an elastic body is provided between the handle grip and the lever. 3. The driving machine according to claim 2, wherein the lever is extendable and retractable, and a tip portion is movable. Driven by compressed air as a power source, a body incorporating a piston for driving a nail or the like or a piston for tightening while driving a screw, a handle grip provided integrally with the body, and an illumination device for irradiating the vicinity of the driving position. A driving machine equipped with
A driving tool, wherein the light of the lighting device is an LED that emits yellow light. 7. The driving machine according to claim 6, wherein two switches for turning off the lighting device are a means for automatically turning off the light after a lapse of a predetermined time from the lighting and a means for forcibly turning off the light.

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