JP2009004224A - Slide type penlight - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slide type penlight that automatically turns on/off an illuminant by expansion and contraction of a sliding part in a simple structure without use of conductors. <P>SOLUTION: The slide type penlight includes: a sliding part 3 extending from a holding part 2; a protruding part 7 extending from the holding part 2 to an inner cavity part on the sliding part 3; a power supply part 4 extending from the sliding part 3; and an illuminant 5 provided at a leading edge of the power supply part 4. The power supply part 4 includes: a positive terminal 4c; and a negative terminal 4d consisting of a fixed terminal 41 and a movable terminal 42. With the sliding part 3 expanded, the movable terminal 42 comes in contact with the fixed terminal 41, while with the sliding part 3 contracted, the protruding part 7 separates the movable terminal 42 from the fixed terminal 41, resulting in the movable terminal 42 never coming in contact with the fixed terminal 41. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a slide-type penlight that automatically turns off a light emitter in a contracted state and automatically enters a light-emitting state in an extended state.

  Some conventional slide-type penlights have a switch on the handle side, a lead wire extends into the inner space of the slide portion, and is connected to a light emitter provided at the tip of the slide portion ( For example, see Patent Document 1).

JP 2001-176301 A

  The conventional slide-type penlight described above requires a switch operation to turn on and off the light emitter, which is difficult to use. Moreover, in the contracted state, since the conducting wire can be in a buckled state, there has been difficulty in durability, such as the conducting wire being cut (disconnected) by repeated use.

  On the other hand, in order to solve the problem that such a conductive wire is cut, a structure has been proposed in which the slide portion has a double structure and the slide portion located inside instead of the conductive wire is used as a conductor.

  However, the double structure of the slide portion as described above has a problem in that the structure becomes complicated and, as a result, the manufacturing cost increases.

  The present invention has been made to solve the above problems, and provides a slide-type penlight that automatically turns on and off a light emitter by extending and contracting a slide portion without using a lead wire and having a simple structure. It is in.

  The invention according to claim 1 has a handle portion, a telescopic slide portion extending from the handle portion, and a predetermined length extending from the handle portion to an inner space of the slide portion. A protrusion, a power supply unit extending further from the slide unit, and a light emitter that is provided at a tip of the power supply unit and emits light by the power from the power supply unit. A positive terminal and a negative terminal are provided opposite to each other in the longitudinal direction, and the positive terminal or the negative terminal provided on the side of the handle part is a fixed terminal and a movable terminal that can be contacted and separated in the longitudinal direction. In the state where the slide portion is extended, the movable terminal is brought into contact with the fixed terminal at a predetermined contact pressure to conduct, and in the state where the slide portion is contracted, the protrusion portion In front of the movable terminal By pushing in the direction away from the fixed terminal, the movable terminal is characterized by a non-conductive without the non-contact state with said fixed terminal.

  According to a second aspect of the present invention, in the slide-type penlight according to the first aspect, the movable terminal is brought into contact with the fixed terminal by a reaction force of a spring material, and the protruding portion is against the reaction force, The movable terminal is pushed up in a direction away from the fixed terminal.

  The present invention has the following effects due to the above configuration.

  According to the first aspect of the present invention, since the power supply unit and the light emitter that extend from the tip of the slide portion are provided, the lead wire extends from the handle portion toward the light emitter to the inner space of the slide portion. As a result, it has excellent durability.

  In addition, when the slide part is extended, the fixed terminal and the movable terminal are in contact (conducting) state, and in the contracted state, the protrusion pushes up the movable terminal and the fixed terminal and the movable terminal are not in contact (non-conducting) state. Therefore, it is possible to automatically turn on / off the light emitter by expanding and contracting the slide portion without requiring a switch operation.

  According to the invention of claim 2, since the movable terminal is in contact with the fixed terminal at a predetermined contact pressure due to the reaction force of the spring material, the protrusion of the spring material follows the expansion and contraction of the slide portion. The movable terminal can be pulled away from the fixed terminal against the reaction force. Therefore, the contact / non-contact between the movable terminal and the fixed terminal can be switched by the expansion and contraction of the slide portion, although the configuration is simple.

Embodiment.
Hereinafter, an embodiment of a slide-type penlight according to the present invention will be described with reference to the drawings. In addition, the slide type penlight in the present embodiment is configured by providing a mirror (a prism mirror if necessary) in the vicinity of the light emitter, for example, sewage pipe burying work in a dark and narrow place, internal inspection, filth It is suitable for use in the presence / absence inspection of (foreign matter).

  FIG. 1 is a side view showing an extended state of a slide type penlight according to an embodiment of the present invention. FIG. 2 is a partial longitudinal sectional view of the slide-type penlight shown in FIG. FIG. 3 is a side view showing a contracted state of the slide-type penlight according to the embodiment of the present invention. 4 is a partial longitudinal sectional view of the slide-type penlight shown in FIG.

  1 to 4, reference numeral 1 denotes a slide-type penlight. Hereinafter, the configuration of the slide-type penlight 1 will be described.

  Reference numeral 2 denotes a handle for the user to hold and use the slide-type penlight 1 by hand.

  Reference numeral 3 denotes a slide portion extending from the handle portion 2 so as to be extendable and contractible, and the inside is hollow.

  Reference numeral 4 denotes a power supply unit that further extends from the slide unit 3, and includes a power supply source 4a such as a dry battery.

  A light emitter 5 is provided at the tip of the power supply unit 4. In the present embodiment, a light bulb or an LED (Light Emitting Diode) is used.

  Reference numeral 6 denotes a mirror (a prism mirror if necessary) installed at the tip of the slide-type penlight 1, that is, in the vicinity of the light emitter 5. As described above, the slide-type penlight 1 according to the present embodiment is suitable for use in sewage pipe embedding work, internal inspection, inspection for the presence of dirt (foreign matter), and the like. 5 is used in a state where the mirror 6 is irradiated with light, it is possible to work conveniently in a dark and narrow place.

  Reference numeral 7 denotes a protrusion that extends from the handle 2 to the inner space of the slide 3 by a predetermined length.

  Hereinafter, the structure of the power supply unit 4 will be described in detail.

  Reference numeral 4b denotes a casing of the power supply unit 4, which is formed of a conductive metal. 4c is a plus terminal. Reference numeral 4d denotes a minus terminal, which includes a fixed terminal 41 and a movable terminal 42 that is pressed against the fixed terminal 41 by a spring material (coil spring) 4e.

  That is, the light emitter 5 includes a positive terminal 4c from the positive pole of the power supply source 4a, a casing 4b that functions as a conductor, a negative terminal 4d (fixed terminal 41 and the movable terminal 42), a spring material 4e, and a negative of the power supply source 4a. Light is emitted when current flows in the order of the poles. Needless to say, a configuration in which the plus terminal 4c and the minus terminal 4d are reversed also holds.

  As shown in FIG. 2, in a state where the slide type penlight 1 is extended, the movable terminal 42 is brought into pressure contact with the fixed terminal 41 by the reaction force of the spring material 4e and is in a conductive state.

  On the other hand, as shown in FIG. 4, when the slide-type penlight 1 is contracted, the movable terminal 42 is separated from the fixed terminal 41 by the protrusion 7 and is in a non-conducting state.

  That is, when the slide portion 3 is contracted, the projection 7 eventually comes into contact with the movable terminal 42, and when the slide portion 3 is further contracted, the movable terminal 42 is pushed up by the projection 7 while resisting the reaction force of the spring material 4e. , Away from the fixed terminal 41.

  Next, when the slide part 3 is extended, the projection part 7 moves away from the movable terminal 42. Therefore, the movable terminal 42 is pushed back to the fixed terminal 41 side by the reaction force of the spring material 4e, and eventually comes into contact (conduction). ) State.

  As described above, the slide-type penlight 1 according to the present embodiment includes the power supply unit 4 and the light emitter 5 that extend from the tip of the slide unit 3. On the other hand, it is not necessary to extend the conducting wire into the inner space of the slide portion 3, and as a result, the durability is excellent.

  Further, when the slide portion 3 is extended, the fixed terminal 41 and the movable terminal 42 are in contact (conduction) state, and when contracted, the protrusion 7 pushes up the movable terminal 42 so that the fixed terminal 41 and the movable terminal 42 are connected. Since it is in a non-contact (non-conducting) state, no switch operation is required, and the light emitter 5 can be automatically turned on / off by the expansion and contraction of the slide portion 3. Therefore, the slide-type penlight 1 with high convenience can be realized.

  Since the movable terminal 42 is in contact with the fixed terminal 41 at a predetermined contact pressure due to the reaction force of the spring material 4e, the reaction force of the spring material 4e is caused by the protrusion 7 following the expansion and contraction of the slide portion 3. On the contrary, the movable terminal 42 can be pulled away from the fixed terminal 41. Therefore, the contact / non-contact between the movable terminal 42 and the fixed terminal 41 can be switched by the expansion and contraction of the slide portion 3, although the configuration is simple.

It is a side view showing the state where the slide type penlight of one embodiment concerning the present invention extended. It is a partial longitudinal cross-sectional view of the slide-type penlight shown in FIG. It is a side view which shows the state which the slide type penlight of one Embodiment which concerns on this invention shrunk. It is a fragmentary longitudinal cross-sectional view of the slide type penlight shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Slide type penlight 2 Handle part 3 Slide part 4 Electric power supply part 4c Positive terminal 4d Negative terminal 4e Spring material 5 Light-emitting body 7 Protrusion part 41 Fixed terminal 42 Movable terminal

Claims (2)

The handle and
A telescopic slide portion extending from the handle portion;
A protrusion extending a predetermined length from the handle portion to the inner space of the slide portion;
A power supply part further extending from the slide part;
A light emitter that is provided at a tip of the power supply unit and emits light by power from the power supply unit;
The power supply unit is provided with a positive terminal and a negative terminal facing both ends in the longitudinal direction,
The plus terminal or the minus terminal provided on the side of the handle part is composed of a fixed terminal and a movable terminal that can be contacted and separated in the longitudinal direction,
In a state where the slide portion is extended, the movable terminal is brought into contact with the fixed terminal at a predetermined contact pressure, and is conducted.
When the slide portion is contracted, the projecting portion pushes up the movable terminal in a direction away from the fixed terminal, so that the movable terminal is not in contact with the fixed terminal and becomes non-conductive. Slide-type pen light to play. The movable terminal is brought into contact with the fixed terminal by a reaction force of a spring material,
The slide-type penlight according to claim 1, wherein the protrusion pushes up the movable terminal in a direction away from the fixed terminal against the reaction force.

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