JPH069752U - Soldering iron - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a soldering iron that can be made compact and cost reduced. [Structure] The tip of the solder wire 34 inserted in the tangential direction of the peripheral surface of the feed roller 42 comes in contact with the contact portion of the solder roller 34 with the feed roller 42, and slightly rearward in the feed direction of the solder wire 34.
It has a pressing piece 47 whose tip portion is bent in the feeding direction of the solder wire 34, and a spring body 50 which presses the pressing piece 47 to press the solder wire 34 against the peripheral surface of the feed roller 42. I am trying.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a soldering iron capable of supplying a solder wire to an iron portion.

[0002]

[Prior art]

 The soldering iron has a heater part, iron part, and grip part.The soldering wire is fed through the grip part and is fed by the feeding part so that the tip of the solder wire is sequentially positioned at the tip of the iron part. There is A known solder wire feeding mechanism for the above-mentioned conventional soldering iron is shown in FIG. Reference numeral 10 denotes a feed gear having a blade engraved on its peripheral surface, which is provided on a shaft 11 so as to be freely rotatable. A pressing roller 12 is provided at the tip of the arm 13 so as to be freely rotatable. Since the arm 13 is normally biased toward the feed gear 10 by the spring 17, the solder wire 16 supplied to the grip portion 15 can be pressed between the feed gear 10 and the pressing roller 12. ing. Reference numeral 18 denotes a handle piece fixed at one end to the shaft 11, and a spring 19 urges the handle piece 18 clockwise in the drawing. Reference numeral 20 is a cover fixed to the handle piece 18. Reference numeral 21 denotes a feed claw, which is fixed to the cover 20 at one end and is engaged with the blade of the feed gear 10 at the other end. Reference numeral 22 is a check claw, which is fixed to the handle portion 15 at one end and is engaged with the blade of the feed gear 10 at the other end.

By turning the handle piece 18 by putting a finger on the cover 20, the feed claw 21 rotates in the direction of the arrow together with the cover 20, and the feed gear 10 rotates about the shaft 11, whereby the pressing roller is rotated. The solder wire 16 which is pressed against the peripheral surface of the feed gear 10 by 12 can be fed out. Even if the handle piece 18 is returned to the illustrated position by the spring 19, the check gear 22 is engaged with the feed gear 10, so that the feed gear 10 is prevented from rotating in the reverse direction. The solder wire 16 is taken out by rotating the arm 13 so that the pressing roller 12 is separated from the feed gear 10 by the release button. According to the above-mentioned soldering iron, since it is not necessary to operate the soldering iron and the solder wire with both hands, the soldering can be easily performed at the determined position of the product.

[0004]

[Problems to be solved by the device]

 However, the above-mentioned conventional soldering irons have the following problems. That is, two rotating bodies such as the feed gear 10 and the pressing roller 12 are required, and two pawls are also required to feed and reverse the feed gear 10, resulting in a high cost due to the large number of parts. However, there is a problem that the structure is large and the structure is complicated.

Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to provide a soldering iron that can be made compact and cost reduced.

[0006]

[Means for Solving the Problems]

 The present invention has the following configuration to achieve the above object. That is, in a soldering iron that has a heater part, a trowel part, and a grip part, and the tip end of the solder wire that passes through the grip part is sequentially fed to the tip of the trowel part by a feed part provided in the grip part, The part is provided in the grip part so as to be rotatable around the axis in the feed direction of the solder wire, and fixed to the feed roller so as to be rotatable together with the feed roller. A feed-in gear having a blade, a feed pawl that is movably guided in a direction to engage with the gear blade, and a biasing the feed pawl in a non-engaging direction with respect to the gear blade The biasing member is connected to the feed pawl, and is guided so as to be able to be pushed inward from the outside of the handle portion, and by pushing the feed pawl against the biasing force of the biasing member. Move the feed roller together with the gear in the feed direction of the solder wire. The push-in button to be rotated and the tip of the solder wire inserted in the tangential direction of the peripheral surface of the feed roller slightly contact the rear of the solder wire in the feed direction of the solder roller and the tip of the solder wire The pressing piece bent in the feeding direction, the spring body for pressing the pressing piece to press the solder wire against the peripheral surface of the feed roller, and the pressing piece against the biasing force of the spring body. And a release member movable in a direction away from the peripheral surface of the feed roller.

[0007]

[Action]

 When the solder wire 34 is to be fed to the iron portion 31 by a predetermined length during use, the push button 55 may be pushed to an appropriate depth. As a result, the arm 52 is rotated clockwise in FIG. 3, so that the feed claw 53 is also moved in the same direction to engage the blade 45 and push the blade 45. As a result, the gear 44, and hence the feed roller 42, is rotated clockwise in the figure, and the solder wire 34 pressed against the feed roller 42 by the pressing piece 47 is fed to the left side in the figure by the required length. When the push-in of the push-in button 55 is released, the feed claw 53 and the arm 52 are pulled up in the opposite direction, that is, the counterclockwise direction by the urging force of the coil spring 54, and the push-in button 55 is also returned together. The pressing piece 47 has a tip portion bent in the feeding direction of the solder wire 34, and a spring is formed at a portion of the sloping line on the feeding direction rear side of the contact portion where the solder wire 34 contacts the feed roller 42. Since the solder wire 34 is pressed by the body 50, when the solder wire 34 is pulled out to the rear of the grip portion 33, the tip of the pressing piece 47 bites into the solder wire 34, that is, it becomes a non-return and becomes in that direction. The withdrawal of the solder wire 34 is prevented. By pushing the release member 48 against the urging force of the spring body 50, the pressing piece 47 is pushed down and the contact with the solder wire 34 is released, so that the solder wire 34 is pulled out rearward. be able to.

[0008]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Reference numeral 30 denotes the entire soldering iron. Reference numeral 31 is a trowel portion, 32 is a heater portion, and 33 is a grip portion. Since the structures of the heater part 32 and the iron part 31 are not particularly different from the conventional ones, their explanations are omitted. The solder wire 34 is inserted into the grip portion 33 from the insertion port of the rear end surface of the grip portion 33, and the front end portion is troweled through a guide 35 in the grip portion 33, a feeding portion 36, and a guide 37 outside the grip portion 33. It is led out near the tip of 31. The feeding of the solder wire 34 can be performed by the feeding portion 36.

Next, the feeding unit 36 will be described with reference to FIGS. Reference numeral 40 is a case forming a part of the handle 33. In the case 40, a feed roller 42 is provided so as to be rotatable around the shaft 41 in the feed direction of the solder wire 34. It is preferable to attach a rubber ring to the peripheral surface of the feed roller 42 so that the solder wire 34 can be fed forward by a frictional force. A feeding gear 44 is integrally fixed to both side surfaces of the feeding roller 42, and has a saw-toothed blade 45 formed on its peripheral surface. The blade 45 projects outward from the peripheral surface of the feed roller 42. In this way, the blade 45 projects outward from the peripheral surface of the feed roller 42, so that the blade 45 prevents the solder wire 34, which is led out in the tangential direction of the outer periphery of the feed roller 42, from coming off the peripheral surface of the feed roller 42. It can also serve as a guide to prevent.

Reference numeral 47 denotes a pressing piece, which is fixed to the lower end of a substantially U-shaped releasing member 48 slidably provided along the inner surface of the case 40 at both ends of the base, and has the tongue shape at the other end. As shown in FIG. 3, the tip of the tongue-shaped portion is located at a portion of the solder wire 34 slightly behind in the feeding direction of the solder wire 34 from the portion where the solder wire 34 abuts on the peripheral surface of the feed roller 42. It is designed to abut. The tip of the tongue-shaped portion of the pressing piece 47 is bent in the feeding direction of the solder wire 34. Reference numeral 50 denotes a spring body such as a spiral spring, which is arranged between the inner bottom surface of the case 40 and the lower surface of the pressing piece 47 to urge the pressing piece 47 and the releasing member 48 toward the feed roller 42. The tip of the tongue-shaped portion of the pressing piece 47 presses the solder wire 34 against the outer peripheral surface of the feed roller 42 by the biasing force of the spring body 50. The end portion of the releasing member 48 projects from the through hole provided in the case 40 to the outside of the case 40. When the release member 48 is pushed down against the urging force of the spring body 50, the pressing piece 47 is also pushed down. The pressing of the solder wire 34 by the tip of the piece 47 is released, and the solder wire 34 can be pulled out to the rear of the grip portion 33.

An arm 52 having a U-shaped cross section is mounted on the shaft 41 of the feed roller 42 so as to be rotatable about the shaft 41. In the middle of the arm 52, a feed claw 53 having a substantially T-shape as a whole is rotatably supported by fitting both ends thereof into through holes provided in the arm wall. . The feed claw 53 can be engaged with the blade 45 of the gear 44 by rotating the arm 52. Reference numeral 54 denotes a coil spring (biasing member), one end of which is fixed to the case 40 and the other end of which is fixed to the arm 52 or the feed pawl 53, and which biases the feed pawl 53 in a direction not engaged with the blade 45. There is. A push-in button 55 is provided so as to be able to be pushed into the case 40 along the inner surface of the case 40, and when pushed, the arm 52 is rotated against the biasing force of the coil spring 54. . Reference numeral 56 denotes a spring piece, one end of which is fixed to the inner wall surface of the case 40, and the other end of which is in contact with the back surface of the feed claw 53, which presses the feed claw 53 in the direction of the blade 45. The blade 45 is securely engaged without being disengaged.

Since the solder wire 34 is configured as described above, when the solder wire 34 is to be fed to the iron portion 31 by a predetermined length during use, the push button 55 may be pushed to an appropriate depth. . As a result, the arm 52 is rotated clockwise in FIG. 3, so that the feed claw 53 is also moved in the same direction to engage the blade 45 and push the blade 45. As a result, the gear 44, and hence the feed roller 42, is rotated clockwise in the figure, and the solder wire 34 pressed against the feed roller 42 by the pressing piece 47 is fed to the left side in the figure by the required length. When the push-in of the push-in button 55 is released, the feed claw 53 and the arm 52 are pulled up in the opposite direction, that is, the counterclockwise direction by the urging force of the coil spring 54, and the push-in button 55 is also returned together. The pressing piece 47 has a tip portion bent in the feeding direction of the solder wire 34, and a spring is formed at a portion of the sloping line on the feeding direction rear side of the contact portion where the solder wire 34 contacts the feed roller 42. Since the solder wire 34 is pressed by the body 50, when the solder wire 34 is pulled out to the rear of the grip portion 33, the tip of the pressing piece 47 bites into the solder wire 34, that is, it becomes a non-return and becomes in that direction. The withdrawal of the solder wire 34 is prevented. By pushing the release member 48 against the urging force of the spring body 50, the pressing piece 47 is pushed down and the contact with the solder wire 34 is released, so that the solder wire 34 is pulled out backward. be able to.

[0013]

[Effect of device]

 According to the soldering iron according to the present invention, only one feed roller and one pressing piece are required, the structure is simple, and the size and cost can be reduced.

[Brief description of drawings]

FIG. 1 is a front view of a soldering iron.

FIG. 2 is a vertical sectional view of a feeding unit.

FIG. 3 is a front explanatory view of a feeding unit.

FIG. 4 is an explanatory view of a conventional feeding mechanism.

[Explanation of symbols]

 30 soldering iron 31 iron part 32 heater part 33 grip part 36 feeding part 42 feeding roller 44 gear 47 pressing piece 48 release member 50 spring body 53 feeding claw 54 biasing member 55 push-in button

Claims (1)

[Scope of utility model registration request] 1. A soldering iron having a heater part, a trowel part, and a grip part, in which a tip part of a solder wire inserted through the grip part is sequentially fed to a tip of a trowel part by a feed part provided in the grip part, The feed portion is provided in the grip portion such that the feed roller is rotatable about an axis in the feed direction of the solder wire, and the feed roller is fixed to the feed roller so as to be rotatable together with the feed roller. A feed-in gear having a blade, a feed pawl that is movably guided in a direction in which the gear is engaged with the blade, and a biasing force of the feed pawl in a non-engaging direction with respect to the gear blade. The urging member is connected to the feed pawl, and is guided so that it can be pushed inward from the outside of the handle portion, and by pushing the feed pawl against the urging force of the urging member, Rotate the feed roller together with the gear in the solder wire feed direction. The push-in button to be rotated and the tip of the solder wire inserted in the tangential direction of the peripheral surface of the feed roller slightly come in contact with the feed roller of the solder wire in the feeding direction of the solder wire, and the tip of the solder wire A pressing piece bent in the feeding direction, a spring body that presses the pressing piece to press the solder wire against the peripheral surface of the feed roller, and the pressing piece is fed against the biasing force of the spring body. A soldering iron, comprising: a releasing member movable in a direction away from a peripheral surface of the roller.