JP3035065U - Electric soldering iron - Google Patents

Abstract

(57) [Abstract] [Problem] To avoid bending and twisting of an extension cord to facilitate work. SOLUTION: A rotary connector 6 is provided at a rear end of a handle 3, and a base end portion of an extension cord 4 is connected to a heater via the rotary connector, and the rotary connector has a base end portion of the extension cord. It is configured to be held rotatably around the center line of the handle.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an electric soldering iron.

[0002]

[Prior art]

 Generally, an electric soldering iron is provided with a trowel main body following the handle, and an extension cord connected to the heater of the trowel main body fixedly extended from the rear end of the handle. There is.

At this time, a heat-resistant cord made of a rubber material such as neoprene is used for the extension cord for safety reasons, and it is relatively hard to bend.

[0004]

[Problems to be solved by the device]

 When using the above-mentioned electric soldering iron, it may be tilted to the left or right or rotated around the center line of the handle depending on the place where the soldering process is performed. It will be twisted against the force, and the operating force required for this will make soldering difficult.

Further, the posture of the iron body during normal use is inevitably determined by the relationship between the iron body and the extension cord. On the other hand, when the solder is put on the tip of the solder, the solder H as shown in FIG. A is pressed against a specific portion of the iron tip 1b. For this reason, tin is always melted at a fixed position of the tip 1b, and only that part is eroded relatively quickly to form a recess, which makes it impossible to perform a good soldering process.

An object of the present invention is to provide an electric soldering iron capable of solving such a problem.

[0007]

In order to achieve the above object, in the present invention, a rotary connector is provided at a rear end of a handle, and a proximal end portion of an extension cord is connected to a heater via the rotary connector. In this case, the rotating connector shall be configured to hold the base end of the extension cord rotatably around the handle center line.

[0008] Specifically, the above-mentioned rotary connector comprises a socket fixed to a handle and a plug fixed to a base end portion of an extension cord, and the plug is elastic so that it can be pulled out to the socket. Be attached to.

The plug may be fixed to the handle and the socket may be fixed to the base end portion of the extension cord.

[0010]

[Embodiment of the invention]

 FIG. 1 is an overall view of an electric soldering iron according to the present invention, and FIG. 2 is a sectional view showing a main part of the iron soldering iron.

In these figures, 1 is a trowel body, which is composed of a sheath of a heating portion 1a in which a heater 2 is incorporated and a conical tip 1b. Reference numeral 3 is a fixed handle of the trowel body 1, and 4 is an extension cord having a power supply connecting plug 5 fixed to the tip thereof.

A rotary connector 6 is provided at the rear end of the handle 3, and the connector 6 has a socket 6 a embedded in the handle 3 and a polygonal shape fixed to the base end of the extension cord 4. It consists of a plug 6b.

The socket 6 a is made of a synthetic resin cylindrical body 7 having an opening at one end, two crimpers 8 and 9 arranged in the inner center position of the cylindrical body 7, and extended from the crimpers 8 and 9. It is composed of electrical connection pieces 10a and 10b.

At this time, the cylindrical body 7 has slits 11 formed at regular intervals in the circumferential direction of the peripheral wall portion 7a at the opening end so that the peripheral wall portion 7a can be expanded in diameter by elastic deformation, and the peripheral wall portion 7a The structure is such that the protrusion 7b is formed at the rear end of the inner surface. Each crimping member 8 and 9 is formed by bending a conductive metal plate into a U shape.

On the other hand, the plug 6b is composed of a cylindrical knob portion 12, a cylindrical guide portion 13 formed concentrically with the cylindrical knob portion 12, a cylindrical conducting portion 14, a conical insulating portion 15 and a cylindrical conducting portion 16, and is connected to a power source. One insertion piece 5a of the plug 5 and the cylindrical current-carrying portion 14 are electrically connected, and the other insertion piece 5b and the cylindrical current-carrying portion 16 are electrically connected. Reference numeral 13a is a protrusion provided on the cylindrical guide portion 13.

Reference numeral 17 is an electric wire connected to the heater 2, and reference numeral 18 is a void formed in the handle 2 to enable the diameter of the peripheral wall portion 7a to be expanded.

Next, an example of use of the product of the present invention and its operation will be described. A user pushes the plug 6b into the socket 6a to connect the plug 6b as shown in FIG. In this coupled state, the protrusion 7b locks the outward movement of the protrusion 13a, and the plug 6b is prevented from coming out. Press onto the part 16.

After that, the plug 5 for connecting the power source is connected to the power source, and the soldering work is carried out while holding the grip 3. During the work, the whole iron is tilted to the left or right and the grip 3 is centered. It may be necessary to rotate around the line.

At this time, the extension cord 4 also tends to be twisted in response to the displacement of the handle 3, but the extension cord 4 maintains a fixed posture by its shape retention and the displacement regulating action of the power source connecting plug 5. Therefore, the two crimpers 8 and 9 slide in the circumferential direction on the circumferential surfaces of the cylindrical current-carrying portion 14 and the columnar current-carrying portion 16, and as a result, the base end of the extension cord 4 is located at the center of the handle 3. It rotates around the wire and is held at the most comfortable relative position with respect to the handle 3.

Therefore, the twisting or bending of the extension cord 4 is suppressed, and the operator does not need an operating force corresponding to the suppressed amount in the soldering work.

Further, since the plug 6b rotates with respect to the handle 3, it is not necessary to press the solder on the same portion of the tip 1a, and the tin is melted at various positions of the tip 1a, so that the specific portion is fixed. Only the corrosive and eroded will cease.

[0022]

[Effect of the invention]

 According to the present invention configured as described above, since the extension cord is freely rotated around the center line of the handle, it is not necessary to apply a force required to bend or twist the extension cord during soldering work. It can be done accurately.

Further, since the position of the tip with respect to the extension cord changes to an arbitrary position around the center line of the handle, the tin melts at various positions of the tip, so that the tip is fixed at a specific position. Erosion is avoided and it can be used for a long time.

[Brief description of the drawings]

FIG. 1 is an overall view of an electric soldering iron according to the present invention.

FIG. 2 is a cross-sectional view showing a main part of the trowel.

FIG. 3 is a diagram showing how solder is placed on the tip of an electric soldering iron.

[Explanation of symbols]

 2 Heater 3 Handle 4 Extension cord 6 Rotating connector 6a Socket 6b Plug

Claims (1)

[Utility model registration claims] 1. A rotary connector is provided at a rear end of a handle, and a base end portion of an extension cord is connected to a heater through the rotary connector, and the rotary connector has a base end portion of the extension cord as a center of the handle. An electric soldering iron featuring a structure that holds it freely around a wire.