JP6388790B2 - Drawing tool - Google Patents

Description

  The present invention relates to a drawing tool.

  Conventionally, there is a ink brush as a representative drawing tool, which is used as a tool for easily drawing a long straight line on the surface of a material such as wood during construction. For drawing a straight line by the same method as the ink brush, a drawing tool for drawing a straight line using, for example, chalk powder which is a powder body that is easy to handle instead of the ink or ink used for ink brush, so-called chalk drawing tool There is. This drawing tool is a powder in which a reel wound with a yarn for drawing a straight line is rotatably supported by a shaft standing in the case, and the yarn wound around the reel contains a powder body such as chalk powder. It passes through the storage room and is guided outside the case.

  The drawing work (marking work) using this drawing tool is done by placing the case at one end of the drawing area and pulling out the hook (karuko) tied to the thread that locks into the thread entry / exit of the case. When passing through the powder body storage chamber, chalk powder adheres and comes out of the case. Then, place the hook that is being pulled out on the other end of the drawing range, tension the yarn, lift the yarn upward and release it, the yarn is struck against the drawn surface, and the chalk powder adhering to the yarn is It adheres to the drawing surface and can draw straight lines.

  When the drawing work is finished, the thread drawn out by rotating the handle provided in the case in the winding direction of the thread is wound around the reel in the case. The reel and the handle are connected to each other through a shaft that transmits rotation. Usually, the reel is disposed in the case and the handle is disposed outside the case. In addition, the reel may be isolated from other members in the case. That is, a chamber (reel chamber) for storing the reel is provided in the case, and is disposed in the chamber.

  Further, when winding the yarn drawn out of the case into the case, the yarn passes through the powder body storage chamber and is wound on the reel, so that the chalk powder adhering to the yarn is provided in the powder body storage chamber. For example, it is wiped off from the yarn by a powder body removing device provided with removing means such as felt material. It should be noted that the felt material for removing the chalk powder had to be periodically cleaned or replaced in order to prevent deterioration in function due to clogging or the like.

  However, depending on the deterioration of the function of the felt material that wipes off the chalk powder and the weather conditions (weather, temperature, humidity, etc.) when using the wire drawing tool, the chalk powder may stick to the thread and a lot of chalk powder remains on the thread. In some cases, the reel enters the reel installation chamber, that is, the reel chamber. As a result, the chalk powder enters between the outer surface of the side plate of the reel bobbin (bobbin) and the inner wall surface of the case. When wet, the chalk powder will solidify and become a lump while the drawing tool is being stored, and the reel will become heavier when the drawing tool is used next time. There was a problem that could not lock and turn. This problem also occurred in a drawing tool in which the reel is isolated from the powder chamber.

  When repairing a reel whose rotation has become heavy or a reel that has been locked and cannot be rotated, the wire drawing tool is disassembled and is inserted between the outer surface of the side plate of the bobbin portion of the reel and the inner wall surface of the case. The powder body such as chalk powder which had solidified and became a mass had to be removed.

JP-A-2005-213019

  The object of the present invention is to draw chalk that can stably remove the chalk powder from the yarn at least in the powder body storage chamber, and can significantly reduce the penetration of the chalk powder into the reel chamber. The goal is to be able to provide ingredients.

  In order to solve the above-described problems, a drawing tool according to the present invention includes a reel in which a yarn is wound rotatably in a case, and the yarn to be wound on the reel is an arbitrary marking powder body. A drawing tool that passes through the housing and is guided out of the case, so that it can come into contact with the yarn before the powder body removing device that removes the powder body attached to the yarn wound around the reel in the case. A contact member is provided on the head.

  In addition, the contact member is provided in a housing portion of the marking powder body.

  Further, the contact surface of the contact member has an arc shape substantially equal to the curvature of the yarn outer peripheral surface.

  Further, the contact member is a coil spring having an inner diameter substantially equal to the diameter of the yarn, and the yarn is passed through the hollow of the coil spring.

  In addition, one end of the coil spring is fixed to a predetermined member, and the other end can be freely moved.

  Further, the predetermined member is a powder body removing device, and a hollow port of a coil spring is provided corresponding to the yarn passage port of the device.

  The case is made up of a reel that winds the wire for line quoting, and a container for powdered material such as chalk powder or titanium powder that is a coloring material for marking, and is a drawing tool made of resin material or metal material. It is also the main body. In the wire drawing tool according to the present invention, a powder body storage chamber and a reel chamber in which a reel is installed are partitioned by a partition wall or the like.

  The marking coloring member accommodating portion is provided integrally with the case (formed in the case) depending on the shape of the wire drawing tool (for example, the length of the thread wound around the reel), or It is detachable.

  The yarn is made of a material to which a coloring member for marking can be attached, and specifically, a twisted string, a net string, a braided string, or the like made of cotton or nylon material. And the accommodating part which accommodates a coloring member is also a structure corresponding to it by the coloring member for marking to be used, for example, the thing using powder bodies, such as chalk powder and titanium powder, can prevent scattering in the case of a powder body It has a special structure, for example, a dedicated powder body storage chamber configured to allow a thread to pass therethrough.

  And for those using powder bodies (for example, chalk powder or titanium powder), the powder bodies attached to the yarn are dropped at the outside of the yarn case outside the powder body storage chamber for storing the powder body as the marking coloring member. Appropriate dropping means is provided, and a powder body removing device provided with a removing means such as felt material is provided at the entrance / exit of the yarn of the partition wall that partitions the powder body storage chamber and the reel chamber in which the reel is installed. When the yarn is wound, the chalk powder that passes through the powder body storage chamber and adheres to the yarn is wiped off. In addition, you may provide the discharge part which discharges the powder body accumulated in the case in the desired site | part of a case.

  In addition, the reels are usually operated by manually rotating the reel operation handle to wind the thread pulled out to the outside, but the winding speed is doubled by using speed increasing means such as a planetary gear. You may comprise so that it can wind up twice or more early. And you may wind up using an electric motor etc., and you may supply this power supply using a secondary battery or solar power generation. Further, the reel operation handle may be folded or expanded / contracted.

  The contact member is a member for making contact with the yarn wound on the reel, and may be formed in a shape or configuration that can wipe off (including scraping off) the powder that adheres to the yarn. In addition, the contact between the thread and the contact member is not limited to that intimately contacted, but can be brought into contact with the thread or a part of the contact member. And those that can be contacted by vibrations that occur in the yarn during winding. Depending on the size of the drawing tool, the contact member may be constituted by a single member or a combination of a plurality of members. Further, the contact surface of the contact member may be formed in an arc shape that is substantially equal to the curvature of the outer peripheral surface of the yarn, whereby the powder body can be efficiently removed. Of course, a plurality of contact members may be arranged.

  When the contact member is composed of a single member, a coil spring having an inner diameter substantially equal to the diameter of the yarn is preferably used, and the yarn is allowed to pass through the hollow of the coil spring. Then, it is preferable that one side end (including the vicinity of the end portion) of the coil spring is fixed to the powder body removing device so that other than the end can freely move. The coil spring is provided so that the hollow port of the coil spring corresponds to the yarn passage port of the powder removing device.

  According to the wire drawing tool of the present invention, a powder body (for example, chalk powder) that adheres to the yarn again in the powder body accommodation chamber due to the winding of the yarn is removed by a coil spring that is a contact member provided in the powder body accommodation chamber. Since it can be sufficiently wiped off (scraped off), clogging that has conventionally occurred in the powder material removing felt material provided in the powder material removing device can be made equal to zero, thereby allowing the chalk powder to enter the reel chamber. Can be significantly reduced.

  And since the clogging of the powder material removing felt material provided in the powder material removing device can be made equal to zero, the cleaning time of the felt material regularly performed can be extended and the maintainability of the drawing tool is improved. Can be made.

  Also, even if the powder body sticks to the yarn due to weather conditions (weather, temperature, humidity, etc.) when using the wire drawing tool, it is sufficiently wiped off with a coil spring as a contact member provided in the powder body storage chamber ( Therefore, the powder body that passes through the powder body removing device together with the yarn and enters the reel chamber can be significantly reduced.

The partial notch perspective view which showed an example of the wire drawing tool which concerns on this invention. The notched perspective view which expanded a part of drawing tool. The notch figure which expanded a part of powder body accommodation chamber removed from the main body. The cutout figure which expanded a part of powder body accommodation chamber removed from the drawing tool main body of another form.

  Hereinafter, a drawing tool according to the present invention will be described based on specific examples shown in the accompanying drawings. FIG. 1 shows an example of the main wire drawing tool. FIG. 2 is an enlarged view of a part of the wire drawing tool. Reference numeral 1 in the drawing denotes a drawing tool, and reference numerals 1a and 1b denote fixing means such as screws ( The half case of the wire drawing tool 1 fixed by the illustration (not shown), reference numeral 2 is the marking surface of the yarn 3 taken out from the case when carrying the wire drawing device 1 or during wire drawing work (marking work) A handle used when pressing, reference numeral 4, is an operation handle for turning a reel (not shown in the figure) when winding the drawn-out thread 3. Further, the thread 3 is provided with a ring 3 a so as to be easily pulled out, and this ring 3 a also functions to prevent the thread 3 from being drawn into the powder body accommodation chamber 5. In addition, in the figure in a present Example, although the powder body in the powder body storage chamber 5 is abbreviate | omitted, when using the wire drawing tool 1, a suitable quantity powder body (for example, chalk powder, titanium powder, etc.) is accommodated. ing.

  The powder body accommodation chamber 5 has a cap 5b in which an external entrance / exit 5a of the yarn 3 is formed. The cap 5b is attached by passing through the powder body accommodation chamber 5 when the yarn 3 is pulled out. A felt material (not shown in the figure) is provided for dropping the powder body attached to the excess powder body. Further, when the reel 3 is wound around the reel chamber side where the reel (not shown in the figure) connected to the operation handle 4 in the powder body storage chamber 5 is disposed, the yarn 3 passes through the powder body storage chamber 5. There is provided a powder body removing device 6 for removing the powder body adhering thereto.

  And the coil spring 7 which is a contact member is provided in the thread | yarn passage port of the powder body removal apparatus 6, ie, the entrance / exit 6a of the thread | yarn 3, so that the thread | yarn 3 can be contacted. Further, as shown in FIG. 3, the coil spring 7 is provided with a hollow port 7a of the coil spring 7 corresponding to the entrance / exit 6a of the powder body removing device 6, and the yarn 3 passing through the powder body containing chamber 5 is It passes through the hollow portion 7 b of the coil spring 7 and enters the inside of the powder body removing device 6 from the entrance 6 a of the powder body removing device 6. And in the powder body removal apparatus 6, the felt material 6b for removing the powder body adhering to the thread | yarn 3 is accommodated.

  In addition, since only one side end of the coil spring 7 is attached to the powder body removing device 6, parts other than the attached portion can freely move (shake), and thereby pass through the powder body containing chamber 5. Even when the yarn 3 is shaken, the coil spring 7 follows this shake. Therefore, the powder body adhering to the yarn 3 can be removed without causing deterioration of the yarn 3 due to sliding between the yarn 3 and the coil spring 7 or a reduction in winding feeling due to fluctuation of sliding resistance. .

  Then, the powder body adhering to the yarn 3 by the coil spring 7 is wiped off (scraped off) firmly because the ring edges of the coil spring 7 come into contact with the yarn 3. )be able to. In addition, even when the powder body is strongly stuck to the yarn 3 due to weather conditions (weather, temperature, humidity, etc.) when the drawing tool is used, each ring edge of the coil spring 7 contacts the yarn 3. It is also possible to firmly remove (scrap off) the powder body strongly adhered to the yarn 3.

  The material of the coil spring 7 is not particularly limited, and a material formed of resin or metal may be used. However, depending on the form of the drawing tool, the yarn 3 may be wound in order to wind the yarn 3 at high speed. Considering the frictional heat generated by the sliding resistance between the coil spring 7 and the coil spring 7, a metal material that is resistant to the frictional heat generated by sliding, or a material that has been quenched may be used. In addition, the coil spring 7 also takes into consideration the form of the wire drawing tool and the radiation of frictional heat, etc., and a compression coil spring (there is a space between the rings) and a tension coil spring (the rings are in close contact with each other). ) May be appropriately selected and used. In particular, the compression coil spring is hard to trap heat because there is a space between the rings.

  Furthermore, by using the coil spring 7, the design freedom of the wire drawing tool can be remarkably improved. That is, in the prior art, it was impossible to bend the passing direction of the yarn 3. Therefore, the reel in the reel chamber connected to the operation handle 4 for winding the yarn 3 and the powder body containing chamber 5 for adhering the powder body to the yarn 3. Each part of the external entrance 5a of the yarn 3 had to be arranged in a straight line (for example, the form of FIG. 1). As shown in FIG. 4, for example, the opening directions of the hollow ports at both ends are 90 degrees. By using the coil spring 7c configured to be different, the reel arrangement position in the wire drawing tool and the arrangement position of the external entrance / exit 5a of the yarn 3 can be freely designed. By changing the passing direction of the yarn 3 with the coil spring, the sliding resistance between the yarn 3 passing through the hollow portion 7b of the coil spring 7c and the coil spring 7c can be kept low. If a metal coil spring is used, it is resistant to frictional heat generated by sliding.

  Reference numeral 8 in the drawing is an attachment portion for attaching the powder body accommodation chamber 5 of the main body of the wire drawing tool 1. The attachment portion 8 is formed with a male screw 8 a, and the powder body accommodation chamber 5 has the male screw 8 a described above. Is formed so that the powder body accommodation chamber 5 can be fixed to the attachment portion 8 of the drawing tool 1 main body by screwing.

DESCRIPTION OF SYMBOLS 1 ... Drawing tool 1a ... Half case 1b ... Half case 2 ... Handle 3 ... Thread 3a ... Ring 4 ... Operation handle 5 ... Powder body accommodation chamber 5a ... External entrance / exit 5b ... Cap 6 ... Powder body removal apparatus 6a ... Entrance / exit 6b ... felt material 7 ... coil spring 7a ... hollow port 7b ... hollow part 7c ... coil spring 8 ... mounting part 8a ... male screw

Claims (5)

A drawing tool in which a reel around which a yarn is wound is rotatably provided in a case, and the yarn to be wound around the reel is guided outside the case through an accommodating portion of a powder body for marking. ,
Before the powder body removing device that removes the powder body attached to the yarn wound around the reel in the case, a contact member is provided so as to be in contact with the yarn ,
A wire drawing tool , wherein a coil spring having an inner diameter substantially equal to the diameter of the yarn is used as the contact member, and the yarn is passed through the hollow of the coil spring . The wire drawing tool according to claim 1 , wherein one end of the coil spring is fixed to a predetermined member, and the other end is freely movable. The wire drawing tool according to claim 2 , wherein the predetermined member is a powder body removing device, and a hollow port of a coil spring is provided corresponding to a yarn passage port of the device. The wire drawing tool according to claim 1, wherein the coil spring is provided in a receiving portion of the marking powder body. The wire drawing tool according to claim 1, wherein the contact surface of the coil spring has an arc shape substantially equal to the curvature of the outer peripheral surface of the yarn.

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