JP2006320977A - Light unit attachment/detachment structure for tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light unit attachment/detachment structure for a driving tool or the like that facilitates the detachment/attachment work of a light unit 10 and has a high light effect on the tip of a driving part. <P>SOLUTION: The driving tool is provided with a body 2 having a drive in its inside and the driving part provided at the tip of the body 2, and it drives fasteners supplied to the driving part with the drive from the tip of the driving part. The light unit 10 is mounted attachably/detachably to/from a hook 8 protruding from the base part of the body 2 to the side and extended to the driving part side of the body 2 along the side face of the body 2. The light unit 10 can light near the driving part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a light unit attaching / detaching structure for attaching / detaching a light unit to various tools such as a tightening tool, a driving tool, and a drilling tool using a hook provided on the body of these tools.

In general, after the construction of large frames such as roofs and walls at a new construction site, etc., sunlight is blocked, so there are many dark areas. In particular, it is dark where light cannot reach, such as the attic and under the floor, so when placing fasteners, it is difficult to determine the placement position, so it is usually necessary to install a temporary lighting device when placing fasteners in dark places. There is. However, since the place changes as the driving operation progresses, the lighting device must be moved as the place changes. Therefore, the work in the dark place is troublesome.

Therefore, in order to improve such an inconvenience, it is known that the driving tool itself is provided with a light unit. This is a light unit with a built-in power supply fixed to the lower part of the grip of the driving tool, and there is an advantage that the brightness can always be ensured regardless of the place where the fastener is driven.
JP 2004-209567 A

  However, the conventional unit has the light unit fixed to the lower part of the grip with bolts and nuts, so it must be removed when it is not necessary to use the light unit, or for repairing the light or replacing parts. Sometimes it required tools such as a wrench or wrench, and the removal and installation of the light unit was cumbersome. Further, since the light unit is provided at the lower part of the grip, the driving portion where the fastener is injected is illuminated from the rear, and the front of the driving portion becomes a shadow of light and becomes dark. Furthermore, since the distance from the tip of the driving unit to the light unit is long, there is a problem that the output of the battery must be increased or the light must be brought close to the tip of the driving unit by appropriate means. Such a problem is common not only to a driving tool but also to various tools having a tightening means and a drilling means at the tip of the body, such as a tightening tool and a drilling tool.

  It is an object of the present invention to provide a light unit attachment / detachment structure for a tool that solves the above-described problems, facilitates the removal and attachment of the light unit, and has a high illumination effect on the work surface.

  In order to solve the above-mentioned problem, the invention according to claim 1 detachably attaches the light unit to hooks provided along the surface of the body of various tools such as a tightening tool, a driving tool, and a drilling tool, The light unit can illuminate the front end side of the body.

  According to a second aspect of the present invention, the hook is formed by connecting one end of two parallel shaft portions, bending the other end portion, and fixing the bent portion to the base portion of the body. Engagement grooves that are slidable along the two parallel shaft portions from the bent portion of the hook are formed on both sides of the inner side surface of the unit.

  The invention according to claim 3 is characterized in that the engaging groove has an L-shaped cross section and is formed to open to the outside, and both ends of the groove wall inside the engaging groove are formed obliquely. And

  According to the first aspect of the present invention, since the hook already provided along the body surface of the tool is used, and the light unit can be attached to and detached from the hook, a special unit for attaching the light unit is attached at the time of attachment. No special parts are required. In addition, it can be easily removed whenever the light unit is not used or when it is necessary to replace parts. Furthermore, since the light unit is provided on the body surface of the tool, the light is necessarily located near the work surface. Therefore, effective brightness can be obtained even with low power. Moreover, since the hook is usually placed on the opposite side of the operator's dominant hand with respect to the body (if the dominant hand is right, the hook is on the left of the body), the light unit will also be placed on the same side, When the light is illuminated during the work, the work surface on the dominant hand side of the body tip is bright and the opposite side becomes a shadow, so the work becomes very easy.

  According to the second aspect of the present invention, the engagement grooves that are slidable along the two parallel shaft portions from the bent portion of the hook are formed on both sides of the inner surface of the light unit. Since the light unit may be slid along the shaft portion of the hook, the attaching / detaching operation can be performed quickly and easily.

  According to the invention of claim 3, since the engaging groove has an L-shaped cross section and is formed so as to open to the outside, both ends of the groove wall inside the engaging groove are formed obliquely. When the light unit is attached, the oblique groove wall serves as a guide, and when removing the light unit, the oblique groove wall serves as a stopper so that it is difficult to come out.

  1 and 2, reference numeral 1 denotes an impact driver. The impact driver 1 is provided with a grip 3 on one side of a body 2 and a holder to which a base of a driver bit (driving portion) 4 can be attached inside the body 2, and is taken from the end of the grip 3. By operating the trigger lever 5 by pulling the compressed air, the compressed air is sent to a driving portion (air motor, not shown) provided in the body 2 and blows against the holder in the rotational direction to shock the driver bit 4. This is a driving tool for rotating and screwing a screw (not shown) engaged with the tip of the driver bit 4 into the target member for driving.

  By the way, a pair of upper and lower insertion holes 7 are formed in the side surface of the head portion 6 of the impact driver 1, and a hook 8 is attached to the insertion hole 7. The insertion hole 7 passes through the head portion 6.

  The hook 8 is formed by connecting one end of two parallel shaft portions in a U shape, bending the other end side at a right angle, and fixing the bent portion to the base portion of the body 2. The two parallel shaft portions 8b are arranged along the side surface of the body 2, and the two shaft bodies 8c extending from the bent portion are inserted into and removed from the insertion holes 7 of the body 2 of the impact driver 1. It can be removed. The U-shaped portion 8a is also inclined outward with respect to the parallel shaft portion 8b.

  The U-shaped portion 8a is bent so as to be away from the body 2 with respect to the two parallel shaft portions 8b that follow the U-shaped portion 8a.

  Further, since it is convenient for use to dispose the hook 8 on the opposite side of the operator's dominant hand with respect to the body 2, the hook 8 is assumed to be used by a right-handed worker. In the case of a left-handed person, two parallel shaft bodies 8c extending from the bent portion may be inserted from the opposite side of the insertion hole 7. Although not shown in the figure, means for preventing the shaft body from coming out of the insertion hole 7 is provided.

  Next, the light unit 10 is flat, a battery and wiring are housed in a rectangular case 11 having substantially the same length as the parallel shaft portion 8b of the hook 8, a light 12 is provided at one end of the case 11, and an outer surface is provided. As shown in FIG. 3, engaging grooves 13 slidable along the parallel shaft portion 8b of the hook 8 are provided on both sides of the inner surface of the case 11 in the width direction, as shown in FIG. Is formed. That is, the engagement groove 13 has an L-shaped cross section and is formed so as to open in opposite directions, and the front and rear ends 14a and 14b of the groove wall 14 on the inner side of the engagement groove 13 are formed obliquely. Yes.

  When the light unit 10 having the above structure is attached to the hook 8, as shown in FIG. 2, the light unit 10 is parallel to the body 2 of the impact driver 1, and a groove on the light 12 side of the engaging groove 13. The inclined end portion 14 a of the wall 14 is pushed and slid from the end portions of the two parallel shaft portions 8 b on the head portion 6 side of the hook 8. Since the end of the parallel shaft portion 8b is bent at a right angle, as shown in FIG. 4A, the engagement groove 13 and the parallel shaft portion 8b are not used until the bent portion 15 becomes an obstacle. Although it is difficult to engage, when a force is applied, the front end portion 14a of the groove wall 14 of the engagement groove 13 is inclined, so that the parallel shaft portion 8b is slightly expanded by being guided by the inclined end portion 14a. As shown in b), the front end portion 14 a of the groove wall 14 rides on the bent portion 15. In this state, the frictional resistance becomes small, so that it is easy to slide, and when the rear end portion 14b of the groove wall 14 of the engagement groove 13 exceeds the bent portion as shown in FIG. Is engaged with the parallel shaft portion 8b, and the light unit 10 is attached to the hook 8 in a stable state where the front end portion 14a and the rear end portion 14b of the groove wall 14 are engaged with the U-shaped portion 8a and the bent portion 15. It is done. Even when the light unit 10 is pulled rearward, the rear end portion 14b of the groove wall 14 of the engaging groove 13 serves as a stopper, and the mounting state is stabilized because it does not slide easily rearward. When the light 12 is turned on in this state, the light 12 is necessarily located near the driver bit 4 as shown in FIG. On the other hand, when removing the light unit 10 from the hook 8, the light unit 10 is pulled backward. Since the rear end portion 14b of the groove wall 14 of the engagement groove 13 is inclined, the light unit 10 can be slid rearward and removed by pulling it strongly as in the case of attachment. Thus, the light unit 10 can be easily attached and detached without using a special tool.

  As described above, the light unit 10 uses the hook 8 already provided along the side surface of the body 2 of the impact driver 1, and the light unit 10 is attached to the hook 8. No special parts are required. Further, since the light unit 10 is detachably attached to the hook 8, when the light unit 10 is not used, it can be easily removed whenever the parts need to be replaced. Further, since the light unit 10 is provided on the side surface of the body 2, the light is necessarily located near the driving portion. Therefore, effective brightness can be obtained even with low power. Of course, when the hook 8 is used, the light unit 10 may be removed. Further, the hook can be used even with the light unit 10 attached.

  Moreover, since the hook 8 is usually arranged on the opposite side of the operator's dominant hand with respect to the body 2 (if the dominant hand is right, the hook 8 is on the left of the body 2), the light unit 10 is also arranged on the same side. Therefore, when the light is illuminated during the work, the dominant hand side is bright and the opposite side becomes a shadow, so the work becomes very easy.

  Further, on both sides of the inner surface of the light unit 10, there are formed engaging grooves 13 slidable along two parallel shaft portions 8 b parallel to the bent portion 15 of the hook 8. Can be slid along the parallel shaft portion 8b of the hook 8, so that the attaching / detaching operation can be performed quickly and easily.

  FIGS. 5A and 5B are examples in which the light unit 10 is provided between the hook 8 and the body 2. In the above-described example, the side surface protrudes with the light unit 10 attached to the hook 8, and the light unit 10 becomes an obstacle during cornering work. There is no hindrance to the work, and it is not necessary to remove the light unit 10 during the work. In this case, the light unit 10 can be attached by sliding backward from the front side of the hook 8 and can be removed by sliding forward from this attached state.

  The form of the light unit and the direction of the two engaging grooves are not limited to the above illustrated example. The engaging grooves may be formed so as to face each other in opposite directions. Moreover, you may open in the same direction, ie, the direction away from the case inner surface. When opening in the same direction, an engagement groove may be formed in a groove shape. Similarly, the hook is not necessarily limited to one configured by bending one wire as described above.

  The present invention is not limited to an impact driver. Various tools such as driving tools such as nailing machine and screw driving machine, drilling tools such as driver drills, vibration drills and hammer drills, as well as other tightening tools such as oil pulse screwdrivers and screwdriver screwdrivers. Since many hooks are attached along the body so that a person can carry it around the body, a structure in which the light unit is attached and detached can be applied as described above. The power source is not limited. It may be a pneumatic tool, an electric tool, or a gas pressure driven tool.

  Furthermore, this invention is not limited to the example which attaches or detaches a light unit to the tool to which the hook is previously attached. A hook may be attached to the tool together with the light unit.

  Further, the connection at one end may be a U-shape other than the U-shape, and the bending angle at the other end is not limited to a right angle.

It is a perspective view of an impact driver concerning the present invention. It is a perspective view at the time of attachment of a light unit. (A) and (b) are the side view and rear view of a light unit. (A) (b) (c) is explanatory drawing which showed the attachment aspect of the light unit from the back side of the light unit. (A) and (b) are the side view and top view of another impact driver.

Explanation of symbols

1 Impact Driver 2 Body 8 Hook 10 Light Unit 13 Engaging Groove 14 Groove Wall

Claims (3)

  A light unit is detachably attached to a hook provided along the surface of the body of various tools such as a tightening tool, a driving tool and a drilling tool, and the front end side of the body can be illuminated by this light unit. Light unit attachment / detachment structure for tools characterized by   The hook is formed by connecting one end of two parallel shaft portions, bending the other end portion, fixing the bent portion to the base portion of the body, and on both sides of the inner surface of the light unit, 2. The light unit attachment / detachment structure for a tool according to claim 1, wherein an engagement groove is formed which is slidable along the two parallel shaft portions from the bent portion of the hook. 3. The engagement groove according to claim 2, wherein the engagement groove has an L-shaped cross section and is formed to open in opposite directions, and both ends of the groove wall inside the engagement groove are formed obliquely. Light unit attachment / detachment structure for the described tool.

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