JP2696160B2 - Check light - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inspection light for inspecting a sewer by illuminating the inside of the sewer.

[0002]

2. Description of the Related Art Conventionally, inspection has been performed by holding a rod-shaped light in one hand and bending down to look into a sewer. Since the inspection work at this site is troublesome, a dedicated inspection light used for sewer inspection has been demanded.

[0003] In response to this demand, the applicant company has installed a rod-shaped light in a long holding cylinder in a state of being inserted, and has a fixing function and a light switch operation by tightening rotation of a top grip screwed into the holding cylinder. The present invention has been completed with an emphasis on making it possible to simultaneously perform the operations.

[0004]

The gist of the present invention will be described with reference to the accompanying drawings.

[0005] The tail end 1 'of the rod-shaped handle 1 of the rod-shaped light a
A rotatable switch 3 for turning on and off the light 2 provided at the tip by rotating the switch forward and backward is rotatably provided, and the switch operating cylinder b engaged with the rotary switch 3 is a rod-shaped handle 1.
A rod-shaped light a fitted to the buttocks end 1 ′ and fitted with the switch operation barrel b is provided in the distal end opening 4 of the gripping cylinder c and screwed to the distal end 4 of the gripping cylinder c. By tightening and rotating the top grip 5, the rod-shaped light a fitted with the switch operating cylinder b with respect to the gripping cylinder c is fixed in a locking state, and the rotary switch 3 is rotated to turn on the light 2, and The fixing is released by the reverse rotation of the top grip 5 and the light 2 is released.
The inspection light is characterized in that a switch-and-fixing mechanism 6 configured to also perform a switch operation for turning off is provided in the holding cylinder c.

Further, the outer cylinder d is fitted to the gripping cylinder c, and the gripping cylinder c is extended to a desired length by tightening rotation of the joint grip 7 screwed to the tip of the outer cylinder d. And fixing mechanism 8
The inspection light according to claim 1, wherein the inspection light is provided in the outer cylinder d. The inspection light according to any one of claims 1 and 2, wherein a positioning mechanism is provided for each of the switch operation cylinder (b) and the grip cylinder (c), and the grip cylinder (c) and the outer cylinder (d). It is.

The inspection according to any one of claims 1 to 3, wherein a rod-shaped light a having a bent light head rotatable 360 degrees with respect to the rod-shaped handle body 1 is adopted. It concerns light.

[0008]

[Function] When the top grip 5 is rotated in the tightening direction,
A rotary switch 3 for rotating the switch operation tube b together while the rod-shaped light a fitted with the switch operation tube b is fastened by the switch / fixing mechanism 6 provided on the gripping tube c.
Is turned to the ON position, the light 2 is turned on, and the rod-shaped light a fitted with the switch operation cylinder b is fixed to the gripping cylinder c.

When the top grip 5 is moved in the reverse direction, the fixing is released and the rotary switch 3 is turned to the off position via the switch operation tube b, so that the light 2 is turned off. When the joint grip 7 is rotated and the screwing and tightening state is loosened by the fixing mechanism 8 provided on the outer cylinder d, the gripping cylinder c can be pulled out, and the joint grip 7 is extended at a desired length.
Can be fixed to the outer cylinder d in the extended position by rotating the gripping cylinder c.

After use, the holding cylinder c is fixed and carried in a short state in which the holding cylinder c is immersed in the outer cylinder d.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a preferred embodiment of the present invention, in which a light 2 provided at a tip end portion of a rod-shaped light a is turned on and off by turning the tail end portion 1 'of the rod-shaped handle 1 forward and backward. The turning switch 3 to be turned is provided rotatably, and the switch operation tube b engaged with the turning switch 3 is fitted on the bottom end 1 ′ of the rod-shaped handle 1, and the switch operation tube b is fitted. A rod-shaped light a is provided in the distal end opening 4 of the gripping cylinder c, and a switch operation cylinder b is rotated with respect to the gripping cylinder c by tightening rotation of a top grip 5 screwed to the distal end 4 of the gripping cylinder c. The rod-shaped light a fitted with is fixed to the locking state and the rotation switch 3
Is turned on to turn on the light 2, and the switch / fixing mechanism 6 configured to perform a switch operation for releasing the fixing and turning off the light 2 by the reverse rotation of the top grip 5 is placed in the holding cylinder c. Provide.

Further, the outer cylinder d is fitted to the gripping cylinder c, and the gripping cylinder c is extended to a desired length by tightening rotation of the joint grip 7 screwed to the tip of the outer cylinder d. And fixing mechanism 8
Is provided in the outer cylinder d.

A positioning mechanism is provided for each of the switch operation cylinder b and the grip cylinder c, and the grip cylinder c and the outer cylinder d.

Further, a rod-shaped light a having a bent light head rotatable by 360 degrees with respect to the rod-shaped handle 1 is employed.

In the rod-shaped light a, the light head 9 is provided so as to be rotatable 360 degrees at the slope contact portion 10 at the tip of the rod-shaped handle 1, and the rotary switch 3 is rotatable at the tail end 1 '. A bar-shaped light is provided that is turned on and off by turning the rotation switch 3 forward and backward.

The structure of the switch contact structure and the electric circuit for turning on and off the light 2 while permitting 360-degree rotation at the slope contacting portion 10 may be of any design. Since it is not relevant to the present invention, the detailed description of the structure is omitted.

In the illustrated switch-and-fixing mechanism 6, a synthetic resin tightening split tube 11 is fitted into the front end opening 4 of the gripping tube c, and a taper provided on the outer periphery of the front end of the tightening split tube 11 is provided. Part 1
A tapered surface 5 ′ provided on the inner periphery of the tip of the top grip 5 abuts on 1 ′ and the top grip 5 is tightened and rotated to press the tightening split cylinder 11 against the rod-shaped handle 1 of the rod-shaped light a. The rod-shaped light a is fixed to the holding cylinder c.

The switch operation cylinder b employs a bottomed cylinder made of a synthetic resin. An engagement recess 13 is formed in the bottom 12 to engage with the outer shape of the rotary switch 3 in a male-female relationship. A concave groove 14 is provided in the axial direction, and a locking flange 15 is provided at the tip. The receiving ridge 16 with which the concave ridge 14 is engaged is recessed in the outer peripheral axial direction of the gripping cylinder c.

Therefore, when the switch operation cylinder b is fitted into the tip end portion 4 of the gripping cylinder c, the switch operation cylinder b is gripped by the locking of the locking flange 15 and the engagement of the concave ridge 14 with the receiving ridge 16. It is positioned non-rotatably in the distal end portion 4 of the cylinder c. When the top grip 5 is turned in this state, the turning switch 3 provided on the butt end 1 ′ is operated by the switch, despite the fact that the tightening split tube 11 is tightened and the rod-shaped handle 1 starts to turn. The rotation of the rotation switch 3 is the same as the rotation of the rotation switch 3 because the engagement with the engagement concave portion 13 of the cylinder b is maintained in the rotation stop state, the switch is turned on, and the light 2 is turned on.

When this operation is reversed, the switch is turned off, and the light 2 is turned off.

As long as the top grip 5 is not unscrewed, the rod-shaped light a remains held.

The fixing mechanism 8 for fixing the outer cylinder d to the gripping cylinder c also employs a structure completely identical to that of the above-described switch / fixing mechanism 6 (in which a similar tightening split cylinder 11 is provided). good. Both the switch-fixing mechanism 6 and the fixing mechanism 8 may have any design as long as the rod-shaped light a and the holding cylinder c can be fixed by rotating the top grip 5 and the joint grip 7, respectively. The fixing mechanism 6 must be a switch-and-fixing mechanism 6 having a structure for simultaneously turning the rotary switch 3.
Reference numeral 17 in the figure denotes a groove for improving the tightening.

[0023]

Since the present invention is constructed as described above, the rod-shaped light is inserted into a long gripping tube, joined, and the top grip screwed to the base end of the gripping cylinder is rotated. The rod-shaped light can be fixed to the gripping cylinder and the light can be turned on, making it a useful practical inspection light for inspecting the inside of the sewer.

In addition, by providing a positioning mechanism for each of the switch operation cylinder and the gripping cylinder, and the gripping cylinder and the outer cylinder, an inspection light capable of accurately performing a tightening / relaxing grip operation.

Also, the gripping cylinder can be extended by a desired length and fixed by tightening the joint grip, so that it can be inserted deeply and the bent light head can be rotated 360 degrees. If you use a rod-shaped light,
This is a convenient inspection light that enables a wider range of inspections.

[Brief description of the drawings]

FIG. 1 is a front view of a bar-shaped light according to the present invention.

FIG. 2 is a longitudinal sectional side view of the rod-shaped light part of the above.

FIG. 3 is a sectional view taken along line AA in FIG.

FIG. 4 is a divided perspective view of a main part of the present invention.

[Explanation of symbols]

 Reference Signs List a rod-shaped light b switch operation cylinder c gripping cylinder d outer cylinder 1 rod-shaped handle 1 'bottom end 2 light 3 rotation switch 4 tip opening 5 top grip 6 switch / fixing mechanism 7 joint grip 8 fixing mechanism

Claims (4)

(57) [Claims] 1. A rotary switch for turning on and off a light provided at a tip portion of a rod-shaped light by rotating the rear end of the rod-shaped handle body forward and backward, and rotatably provided, and engaging with the rotary switch. A top grip in which a switch operation cylinder is fitted to the tail end of a rod-shaped handle body, a rod-shaped light fitted with the switch operation cylinder is provided in a distal end opening of the gripping cylinder, and is screwed to the distal end of the gripping cylinder. The rod-shaped light fitted with the switch operation cylinder to the gripping cylinder is fixed in the retaining state by the tightening rotation, and the rotation switch is rotated to turn on the light, and the top grip is rotated in reverse to rotate the light. An inspection light characterized in that a switch-and-fixing mechanism configured to perform a switch operation for releasing the fixing and turning off the light is provided in the gripping cylinder. 2. A fixing mechanism for fitting an outer cylinder to a gripping cylinder and extending the gripping cylinder to a desired length by a tightening rotation of a joint grip screwed to a tip end of the outer cylinder and fixing the same. The inspection light according to claim 1, wherein the inspection light is provided in the outer cylinder. 3. The inspection light according to claim 1, wherein a positioning mechanism is provided on each of the switch operation cylinder and the gripping cylinder, and the gripping cylinder and the outer cylinder. 4. The bent light head is attached to the rod-shaped handle body by 3
The inspection light according to any one of claims 1 to 3, wherein a rod-shaped light provided rotatable by 60 degrees is employed.