JP5249738B2 - Ink brush - Google Patents

Description

  The present invention relates to an ink brush that can draw a dotted ink line on a building member.

  As a carpenter's tool for drawing a long straight line on a building member such as a plasterboard, a pillar, a beam, etc., traditional Japanese ink brush is known. The ink brush has a main body, a spool drum rotatably accommodated in the ink brush body, an ink thread wound around the spool drum and drawable to the outside, and the spool drum in the ink brush body. A black ink impregnating material that is accommodated in contact with the black yarn and can be impregnated with black ink and a chalcone (pin member) attached to the tip of the black yarn are provided on the front side.

  If the ink brush is used as above, the calco is fixed to the building member, the necessary length of the ink thread is pulled out, and the ink thread is pressed against the building member at the front end of the ink brush body with fingers etc. A linear ink line can be drawn on the building member by playing the ink string.

  Even when screwing or nailing a building member, due to the recent demand for improvement in construction accuracy, after drawing a straight black line on the building member using a black ink brush, the interval below the specified dimension In (pitch), screwing and nailing are often performed along the black line. However, since the distance between screws and the distance between nails are based on visual measurements, there is a problem that they are likely to be inaccurate.

In view of this, there has been proposed an ink brush for performing screwing and nailing at an accurate interval (for example, see Patent Documents 1 to 4) in which a plurality of knots are provided at intervals in the ink thread. Yes.
Japanese Utility Model Publication No. 39-31320 (drawings, claims for utility model registration, etc.) JP-A-8-178656 (FIG. 1, FIG. 2, claim 1 etc.) Japanese Unexamined Patent Publication No. 2000-84870 (FIG. 17, claim 3 etc.) Utility Model Registration No. 3127774 (FIG. 1, Claim 3 etc.)

  However, since the knots as described above in which a plurality of knots are provided on the ink thread, the knots are small, so that there is a problem that it is difficult to distinguish the mark on the ink line transferred by the knot from the straight line portion of the ink line.

  In addition, when the knot is increased, it takes time to form a plurality of large knots on the ink thread, and it is difficult or impossible to pull out or wind up the ink thread.

  The present invention has been made in view of the above circumstances and problems. It is easy to identify a mark for performing screwing and nailing at an accurate interval on a building member, and the processing for the ink thread is possible. It is an object of the present invention to provide an ink brush that is unnecessary and can smoothly draw out and wind up the ink string.

  The ink brush according to the first aspect of the present invention for achieving the above object is a ink brush main body, a spool drum rotatably accommodated in the ink brush main body, and wound around the spool drum and can be pulled out to the outside. A black ink cartridge comprising: a black ink string; a black ink impregnating material housed on the front side of the pincushion drum in the ink brush main body and impregnated with black ink; and a charco attached to a tip of the black ink string. In addition, a rotation shaft is provided between two side walls facing the left and right direction of the ink jet main body so that the axial direction thereof is parallel to the left and right direction of the ink jet main body and spaced from the ink impregnating material. And a cam-like roller is provided on the rotary shaft so as to be reciprocally movable between an obliquely lower position on the front side and an obliquely upper position on the rear side. Winding the black thread around the cam-like roller, In the case of having a contact portion that can come into contact with black ink and pulling out the black ink to the outside, it is fed forward from the cam-like roller in a state where the rotating shaft has moved to a diagonally lower position on the front side. The black ink thread periodically contacts the contact portion by a predetermined length as the cam-shaped roller rotates, so that the black ink impregnated in the black ink impregnating material is spaced from each other by a predetermined length. In the case where the black ink is wound around the spool drum while adhering to the black ink yarn, the black ink returning to the cam-shaped roller is in contact with the rotating shaft moved to a diagonally upper position on the rear side. It is configured so as to be positioned with an interval upward from the part.

  According to a second aspect of the present invention, the ink brush is provided on the inner side of the two side walls so as to oppose the recesses for reciprocal movement extending obliquely downward on the front side, and both end portions in the axial direction of the rotating shaft are provided on the two side walls. Each is inserted into a reciprocating recess.

  According to a third aspect of the present invention, there is provided a sump that connects the upper edges of the two side walls of the sump body with a lid that can be opened and closed, and a lower part is provided for the reciprocating movement inside the two side walls. Insertion recesses that communicate with the recesses and extend so that the upper part opens are provided to face each other.

  According to a fourth aspect of the present invention, there is provided a charcoal insertion hole that communicates with an internal space formed between the two side walls and that can be removably inserted into the charcoal body at the front end of the main body. Ink is inserted through the chalcole insertion hole, and the contact portion is provided at a distance from the chalcole insertion hole to the rear side.

  According to a fifth aspect of the present invention, there is provided an ink fountain in which an insertion groove extending in a circumferential direction is provided on a peripheral surface of the cam-shaped roller, and the ink thread wound around the cam-shaped roller is inserted into the insertion groove. is there.

  According to the first invention, since the plurality of black portions in the dotted line are transferred to the building member at intervals, the mark for performing screwing and nailing on the building member at an accurate interval Is easy to identify. Further, since there is no need to provide a knot in the conventional ink thread, it is not necessary to process the ink thread, and the ink thread can be drawn out and wound up smoothly. Furthermore, since the ink does not adhere to the ink thread returning to the cam-shaped roller, after drawing the dotted ink line on the building member and winding the ink thread around the spool drum, the next dotted line condition is continued. Even when a black line is drawn, a clear dotted line can be drawn.

  According to the second invention, the construction structure of the rotating shaft can be simplified, and black does not leak from the side wall to the outside.

  According to the third invention, in a state where the lid portion is opened, the rotation shaft is inserted into the reciprocation recess through the insertion recess, or the rotation shaft from the reciprocation recess through the insertion recess. The ink can be easily removed and the ink does not leak from the side wall to the outside.

  According to the fourth aspect of the invention, a sufficient distance can be secured between the ink thread returning to the cam-shaped roller and the contact portion, so that it is possible to reliably prevent the ink from adhering to the ink thread returning to the cam-shaped roller.

  According to the fifth aspect, it is possible to prevent the ink thread from dropping from the cam-like roller.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 7, the ink brush 1 according to the present embodiment includes, as main components, a ink brush main body 2, a pincushion drum 3, a ink yarn 4, a black ink impregnating material 5, a calco 6, and a rotating shaft 7. , And a cam-like roller 8.

  As shown in FIG. 1, a drum accommodating portion 12 is erected on the rear side on the bottom portion 11 of the ink jet main body 2. The drum accommodating portion 12 is formed in a C shape in plan view and has an opening 13 on the front side.

  As shown in FIGS. 1 and 2, a cover portion 14 is detachably mounted on the drum housing portion 12. The cover portion 14 includes an annular ceiling portion 15, a plurality of pressing protrusions 16 having a circular arc when viewed from the bottom provided on the inner peripheral edge of the ceiling portion 15, and the outer peripheral edge of the ceiling portion 15. The bottom view provided so that it may protrude below is provided with the C-shaped surrounding wall part 17. As shown in FIG. The ceiling part 15 has an insertion hole 18 in the center. The peripheral wall 17 has an opening 19 on the front side. The lower edge of the peripheral wall portion 17 is detachably attached to the upper edge of the drum accommodating portion 12. The configuration of the drum accommodating portion 12, the configuration of the cover portion 14, and the means for detachably attaching the cover portion 14 on the drum accommodating portion 12 are not particularly limited, and a conventionally known appropriate technique is adopted. Can do.

  The pincushion drum 3 is of a manual winding type, and the axial direction is parallel to the vertical direction of the ink jet main body 2 inside the drum housing portion 12 and the cover portion 14 in the ink jet main body 2. And is rotatably accommodated. A projecting portion 20 having a circular shape in plan view is provided at the upper end in the axial direction of the bobbin drum 3. The protruding portion 20 is loosely inserted into the insertion hole 18 of the ceiling portion 15 in the cover portion 14 so as to protrude upward. The bobbin drum 3 is placed on a spacer 21 housed in the drum housing portion 12.

  The spacer 21 is not essential, and the bobbin drum 3 may be placed on the bottom portion 11 in the drum accommodating portion 12. The spool drum 3 may be rotatably accommodated in the ink jet main body 2 so that the axial direction is parallel to the left and right direction of the ink jet main body 2 and other directions. The configuration of the bobbin drum 3 is not limited to the manual winding type as in the present embodiment, but the automatic winding type including a spiral spring or the like, or the electric winding type including a motor or the like. Or the like.

  The ink thread 4 is wound around a spool drum 3 and can be pulled out. The base end (not shown) of the ink thread 4 is fixed to the bobbin drum 3.

  A round bar-shaped guide pin 22 made of metal or the like is erected on the front side of the drum housing portion 12 on the bottom 11 of the ink jet main body 2. The lower end portion of the guide pin 22 is fitted into a cylindrical fixing portion 23 provided on the bottom portion 11. The ink thread 4 is hooked on the guide pin 22 and can be smoothly drawn out and wound up.

  As shown in FIG. 3, two partition walls 32 are spaced apart in the front-rear direction of the ink fountain main body 2 between the two side walls 31 facing the left and right direction of the ink fountain main body 2. It is provided so as to face each other. The two partition walls 32 are respectively provided with slits 33 that extend in the vertical direction of the ink jet main body 2 so that the upper portions thereof are open. The ink threads 4 are inserted through the two slits 33, respectively.

  The black ink impregnating material 5 is formed in a rectangular parallelepiped shape using a sponge or the like that can be impregnated with black ink 34 (see FIG. 7), and as shown in FIG. 3, an internal space 35 formed between the two side walls 31. Is housed between two partition walls 32. Examples of the ink 34 include black ink, red ink, blue ink, and white ink. The black ink 34 may be impregnated in the black ink impregnating material 5 before the ink brush 1 is used.

  The ceiling part which connects the upper edges of the two side walls 31 in the ink fountain body 2 is, for example, a lid part 36 that can be freely opened and closed as shown in FIGS. Therefore, in a state where the lid portion 36 is opened, it is easy to supplement the black ink impregnating material 5 with the black ink 34, remove the black ink thread 4 from the slit 33 of the partition wall 32, and insert the black ink thread 4 into the slit 33. It can be carried out. The lid 36 may be freely opened and closed by being detachably attached to the two side walls 31.

  The chalcone 6 is attached to the tip of the ink thread 4. A chalcone insertion hole 37 is provided at the front end of the ink jet main body 2 through the slit 33 of the partition wall 32 on the front side and the inner space 35 and the chalcole 6 can be detachably inserted. The chalcone insertion hole 37 is formed between the lower hole member 38 and the upper hole member 39. The under-hole member 38 is fixed to the bottom 11 of the ink jet main body 2 or the like. The upper hole member 39 is fixed to the lid portion 36 of the ink jet main body 2. The chalcone 6 can be detachably inserted into the chalcone insertion hole 37 in a state where the pin portion 6a is inserted into the slit 33 of the front partition 32 so as to protrude rearward.

  As shown in FIGS. 3 to 6, the rotary shaft 7 has an axial direction parallel to the left-right direction of the ink fountain body 2 between the two side walls 31, and from the ink impregnated material 5, for example, upward. An interval is provided, and it is constructed to be rotatable and reciprocally movable between an obliquely lower position on the front side and an obliquely upper position on the rear side.

  Here, as in the present embodiment, the recesses 41 for reciprocating movement extending obliquely downward on the front side are provided inside the two side walls 31 so as to face each other, and two axial end portions of the rotary shaft 7 are provided. If it is configured so as to be inserted into the reciprocating recess 41, the construction of the rotating shaft 7 can be simplified and the ink 34 does not leak from the side wall 31 to the outside.

  Further, an insertion recess 42 extending in the vertical direction of the ink fountain body 2 may be provided inside the two side walls 31 so as to face each other so that the lower portion communicates with the reciprocation recess 41 and the upper portion opens. For example, when the lid 36 is opened, the rotary shaft 7 is inserted into the reciprocating recess 41 via the insertion recess 42, and the rotary shaft 7 from the reciprocating recess 41 via the insertion recess 42. The ink 34 can be easily removed and the ink 34 does not leak from the side wall 31 to the outside. When the lid portion 36 is closed, the lid portion 36 serves as a stopper, so there is no possibility that the rotating shaft 7 will drop off. The insertion recess 42 may be provided so as to extend in an oblique direction with respect to the vertical direction of the ink jet main body 2. When the insertion recess 42 is not provided, the rotary shaft 7 may be inserted into the reciprocation recess 41 while being able to expand and contract in the axial direction or to be disassembled into a plurality of parts.

  The cam-like roller 8 is provided in the center of the rotating shaft 7 in the axial direction with a space from the ink impregnating material 5. For example, the cam-like roller 8 is plate-like and has an egg-like side view when viewed from the axial direction of the rotating shaft 7. Is formed. The ink yarn 4 is wound around the cam-like roller 8 from, for example, the lower side so that the cam-like roller 8 rotates in conjunction with the drawing to the outside and the winding onto the bobbin drum 3. The ink thread 4 may be wound around the cam-shaped roller 8 one or more times, preferably about two times. Here, the cam-shaped roller is a roller whose distance from the shaft center (center) to the outer periphery is not constant, and from which the height position of the ink thread 4 fed forward can be periodically displaced. Say.

  The thickness of the cam-shaped roller 8 (the dimension in the axial direction of the rotating shaft 7) is not particularly limited, and the cam-shaped roller 8 may be formed to extend in the axial direction of the rotating shaft 7. Further, the ink thread 4 may be wound around the cam-like roller 8 from above. When the ink thread 4 is wound around the bobbin drum 3 from above, the length of the ink impregnating material 5 in the front-rear direction is made shorter than that of the present embodiment, and the rotary shaft 7 is spaced from the back side of the ink impregnating material 5. May be installed at a position lower than that of the present embodiment.

  Here, as in the present embodiment, an insertion groove 51 extending in the circumferential direction is provided on the circumferential surface of the cam-like roller 8, and the black thread 4 wound around the cam-like roller 8 is inserted into the insertion groove 51. If this is the case, there is an advantage that the ink thread 4 can be prevented from falling off the cam-like roller 8.

  The black impregnated material 5 has a contact portion 61 that can come into contact with the black yarn 4. The contact portion 61 is provided, for example, so as to protrude upward on the upper surface of the black impregnated material 5 and extend in the left-right direction of the black impregnated material 5. The vertical cross-sectional shape of the upper edge of the contact portion 61 may be a semicircular shape as in the present embodiment, an arc shape, a polygonal shape (triangular shape, quadrangular shape, trapezoidal shape, etc.), or the like. Further, the contact portion 61 may not be provided so as to extend in the left-right direction of the black impregnated material 5. As described above, the vertical cross-sectional shape, the cross-sectional shape, the position, and the like of the contact portion 61 can be appropriately changed according to the length of the ink yarn 4 that is periodically brought into contact with the contact portion 61. Here, the contact portion refers to a portion of the black impregnated material 5 that can come into contact with the black yarn 4, and may not be a portion protruding from the other portion of the black impregnated material 5.

Next, the operation of the ink brush 1 configured as described above will be described.
As shown in FIGS. 1 to 4, in the initial state in which the calco 6 is inserted into the calco insertion hole 37 and the ink yarn 4 is wound around the bobbin drum 3, the rotary shaft 7 is located at the rear side of the reciprocating recess 41. It is drawn to a position obliquely upward via a cam-like roller 8.

  When using the ink brush 1, when pulling out the ink thread 4 to the outside, after removing the calco 6 from the calco insertion hole 37 and moving it to the front side to some extent, the calco 6 is constructed of gypsum board, pillar, beam, etc. The ink jet main body 2 is moved backward while being fixed to the member 62 (see FIG. 8).

  At this time, as shown in FIGS. 5 and 6, the rotating shaft 7 is drawn forward through the cam-like roller 8, and the rotating shaft 7 extends along the reciprocating movement concave portion 41 to a position obliquely below the front side. As it moves, the cam roller 8 rotates in conjunction with the withdrawal of the ink thread 4.

  If the cam-shaped roller 8 rotates, the distance from the axial center to the outer periphery is not constant. Therefore, the height position of the ink thread 4 sent from the cam-shaped roller 8 to the front side varies with the rotation of the cam-shaped roller 8. The ink thread 4 periodically contacts the contact portion 61 by a predetermined length. As a result, the ink 34 impregnated in the ink impregnating material 5 adheres to the ink thread 4 at intervals of a predetermined length as shown in FIG.

  Next, when the ink thread 4 is flipped with a finger or the like while the ink thread 4 is pressed against the building member 62 at the front end of the ink brush main body 2, a dotted ink line 63 is drawn on the building member 62 as shown in FIG. be able to.

  On the other hand, when the calco 6 is removed from the building member 62 and the ink yarn 4 is wound around the spool drum 3, the rotary shaft 7 is drawn rearward via the cam roller 8, and the rotary shaft 7 is a reciprocating recess. The cam-like roller 8 rotates along with the winding of the ink thread 4 while moving along the line 41 to an obliquely upper position on the rear side in the initial state.

  At this time, even if the height position of the ink thread 4 returning to the cam-shaped roller 8 is periodically displaced as the cam-shaped roller 8 rotates, the ink thread 4 is positioned at a distance upward from the contact portion 61. The ink 34 is configured so that the ink 34 does not adhere to the ink thread 4. For this reason, even after drawing the dotted ink line 63 on the building member 62 and winding the ink thread 4 around the spool drum 3, and subsequently drawing the next dotted ink line 63, the sharp dotted ink line 63 is drawn. There is an advantage that it can be drawn.

  Here, as in the present embodiment, if the ink thread 4 is inserted into the chalcone insertion hole 37 and the contact portion 61 is provided at a distance from the chalcot insertion hole 37 to the rear side, the ink returning to the cam-like roller 8 is obtained. Since the distance between the thread 4 and the contact portion 61 can be sufficiently secured, there is an advantage that the ink 34 can be reliably prevented from adhering to the ink thread 4 returning to the cam-like roller 8.

  According to the ink brush 1 configured as described above, as shown in FIG. 8, a plurality of ink portions 64 in the dotted line 63 are transferred to the building member 62 at intervals, so that the building member 62 On the other hand, there is an advantage that it is easy to identify a mark for performing screwing and nailing at an accurate interval. Further, since there is no need to provide the knot 4 in the conventional art with the knot, there is an advantage that the processing of the ink thread 4 is not necessary and that the ink thread 4 can be pulled out and wound up smoothly.

  As described above, the ink brush according to the present invention is suitable for drawing a dotted ink line on a building member, and identifies a mark for screwing or nailing the building member at an accurate interval. It is easy to use, and does not require any processing of the ink string, and is useful as an ink brush that can smoothly draw out and wind up the ink string.

It is the general | schematic longitudinal cross-sectional view seen from the right direction of the ink brush which concerns on embodiment. It is a top view of the ink brush of FIG. It is a principal part expansion longitudinal cross-sectional view of the cam-shaped roller vicinity of an initial state. It is a principal part expanded horizontal sectional view of the cam-shaped roller vicinity of an initial state. It is a principal part expanded longitudinal cross-sectional view which shows a mode that the black thread sent to a front side from a cam-shaped roller is contacting the contact part in the state which the rotating shaft moved to the diagonally downward position of the front side. FIG. 4 is an enlarged vertical cross-sectional view of a main part showing a state in which black ink fed forward from a cam-like roller is separated from a contact portion in a state where a rotary shaft has moved to a position obliquely below the front side. It is a principal part enlarged plan view which shows the state which made the ink adhere to the ink thread at intervals from each other by a predetermined length. It is a principal part enlarged plan view which shows the state which pulled the dotted-line black line on the building member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ink bowl 2 Ink bowl main body 3 Pincushion drum 4 Ink thread 5 Ink impregnating material 6 Calco 7 Rotating shaft 8 Cam roller 31 Side wall 34 Ink 35 Inner space 36 Lid 37 Calco insertion hole 41 Reciprocating recess 42 Insertion recess 51 Insertion groove 61 Contact portion 62 Building member

Claims (5)

The ink brush body,
A pincushion drum rotatably accommodated in the ink jet main body;
Ink threads wound around the spool drum and drawable to the outside;
A black ink impregnating material which is housed on the front side of the pincushion drum in the black ink brush body and can be impregnated with black;
Calco attached to the tip of the ink thread,
Ink pot with
Between the two side walls facing the left and right direction of the ink jet main body, the axis of rotation is made parallel to the left and right direction of the ink jet main body and spaced from the ink impregnating material, It is constructed to be rotatable and reciprocating between an obliquely lower position on the front side and an obliquely upper position on the rear side,
A cam-like roller is provided at a distance from the black impregnated material on the rotating shaft,
Winding the ink thread around the cam-shaped roller;
The black ink impregnation material has a contact portion that can come into contact with the black yarn;
When pulling out the black yarn to the outside, the black yarn fed from the cam-like roller to the front side is rotated by the cam-like roller in a state where the rotating shaft is moved to a diagonally lower position on the front side. Accordingly, the ink impregnated in the black impregnated material adheres to the black thread at predetermined intervals while periodically contacting the contact portion by a predetermined length.
When winding the ink thread around the spool drum, the ink thread returning to the cam-like roller is spaced upward from the contact portion in a state where the rotating shaft has moved to an obliquely upper position on the rear side. The ink brush is characterized in that it is configured to be Provided inside the two side walls so as to face the concave portions for reciprocal movement extending obliquely downward on the front side,
2. The ink brush according to claim 1, wherein both end portions of the rotating shaft in the axial direction are respectively inserted into the two reciprocating recesses. The ceiling part that connects the upper edges of the two side walls in the ink bud body is a lid that can be freely opened and closed,
3. The ink brush according to claim 2, wherein an insertion recess extending so that a lower portion communicates with the reciprocating recess and an upper portion opens is provided inside the two side walls. A chalcole insertion hole is provided at the front end of the ink jet main body so as to communicate with an internal space formed between the two side walls and to allow the charcoal to be detachably inserted;
Insert the ink thread through the chalcole insertion hole,
The ink brush according to any one of claims 1 to 3, wherein the contact portion is provided at a distance from the chalcone insertion hole to the rear side. An insertion groove extending in the circumferential direction is provided on the circumferential surface of the cam-shaped roller,
The ink brush according to any one of claims 1 to 4, wherein the ink thread wound around the cam-like roller is inserted into the insertion groove.

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