JP3755085B2 - Ink brush - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention is used by carpenter craftsmen to draw straight lines on pillars and plates, and relates to a sumi-drawing device that has been called “ink brush” since ancient times.
[0002]
[Prior art]
Traditionally, the ink drawing machine called “Sumikan” slides on the ink stored in the inking to draw the ink from the spool reel and transfers the ink to the thread, stabilizing both ends of the ink. It is formed so that a straight line can be drawn on an object such as a pillar by flipping the ink thread with a finger in the state of being applied.
[0003]
However, in the above-described conventional structure, the top surface of the ink meat is exposed, so that it has a problem that it is weak against rain and dryness, and the ink adheres to clothes and other tools when being carried. In addition, since the ink transfer to the ink is performed by sliding the ink on the ink, the ink is damaged quickly and the life of the ink is shortened due to friction, and the thread breaks easily. There were drawbacks. In addition, when used on a horizontal surface, the ink in the ink is stable and the ink is transferred uniformly to the ink thread. For this reason, there are problems such as non-uniform black transfer to the black thread and fading lines.
[0004]
[Problems to be solved by the invention]
Therefore, the present invention stores the ink, that is, the ink impregnating material in a rotating drum, cuts a part of the peripheral surface of the drum into a thin ring shape, brings the ink thread into contact with the ink impregnating material, and rotates by drawing and pulling back the thread. The main purpose is to provide a new black line drawing device that performs the black transfer to the black line by rotating the drum forward and reverse, thereby overcoming various problems of the conventional structure described above. is there.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention takes the following technical means. That is, in the black line drawing device according to the present invention, the thread winding reel 1 that is attached to the frame A and always automatically returns to the winding state of the thread, and the ink formed on the tip of the frame A and wound on the thread winding reel 1. Between the yarn take-out port 3 for taking out the yarn 2, a thread stopper 4 that is detachably attached to the yarn take-out port 3 and to which the end of the ink yarn 2 is connected, and between the yarn winding reel 1 and the yarn take-out port 3 And a rotating drum 5 for inking which is in pressure contact with the peripheral surface thereof so as to rotate forward and backward by pulling out and pulling back the ink yarn 2, A black ink impregnated material 6 impregnated with black ink is housed, and a part of the outer peripheral wall of the rotary drum 5 is cut into a thin ring shape so that the black ink thread 2 is in contact with the black ink impregnated material 6 so that a cut groove 5a is formed. formed seclusion, also black impregnated material 6 by a partition 5b Formed by two layers of the inner layer 6a and an outer layer 6b, the have little Bokudoriana 5c is provided in the partition 5b, ink is structured to be supplied to the outside by centrifugal force due to the rotation of rotary drum 5.
[0006]
The black impregnated material 6 accommodated in the rotating drum 5 is made of sponge, felt, nonwoven fabric or a mixed material thereof. The black ink impregnating material 6 is preferably formed by two layers of an inner layer 6a and an outer layer 6b separated by a partition wall 5b, and a small black hole 5c for black ink penetration is provided in the partition wall 5b. In this case, the volume of the outer layer 6b is preferably smaller than the volume of the inner layer 6a, for example, about one third, and the density of the outer layer 6b is preferably greater than the density of the inner layer 6a. Thereby, it is possible to prevent the black ink from being scattered from the incision groove 5a by the rotational centrifugal force of the drum 5 when the yarn is pulled out.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
1 is a diagram showing the overall planar shape, FIG. 2 is a diagram showing a state in which the lid of the opening portion is opened in the same planar shape, FIG. 3 is a partial cross-sectional view taken across the rotating drum portion, and FIG. FIG.
[0008]
Reference numeral A shown in FIGS. 1 and 2 is a frame, and a bobbin reel 1 is mounted on the rear part thereof. The yarn winding reel 1 has a structure that automatically returns to a yarn winding state at all times by a spring. Further, a thread take-out port 3 is provided at the front end of the frame A for taking out the ink thread 2 wound on the thread winding reel 1, and a thread stopper 4 connected to the front end of the ink thread 2 is detachably attached to the thread take-out opening 3. Has been. The thread stopper 4 includes a needle 4a.
[0009]
Further, a rotary drum 5 for inking which has the black thread 2 pressed against its peripheral surface so as to rotate forward and backward by pulling out and pulling back the black thread 2 between the yarn winding reel 1 and the thread take-out port 3 is provided. It is arranged detachably. The rotary drum 5 contains therein a black ink impregnated material 6 in which black ink is impregnated with an impregnated material such as sponge, felt, or non-woven fabric. The outer periphery of the rotary drum 5 is in contact with the black ink impregnated material 6 so that the black ink 2 is in contact therewith. A part of the wall is cut into a thin ring shape to form an incision groove 5a. Reference numeral 8 in the figure denotes a lid that opens and closes an opening 7 formed in the frame for taking out the rotary drum 5.
[0010]
In this embodiment, as shown in FIGS. 3 and 4, the black impregnated material 6 accommodated in the rotary drum 5 is formed of two layers, an inner layer 6a and an outer layer 6b separated by a partition wall 5b. The partition wall 5b is provided with a small ink passage hole 5c for penetrating the ink. Ribs 5d for accumulating the ink impregnated in the inner layer 6a by the rotational centrifugal force at the time of drawing out the yarn and guiding it to the ink-passing hole 5c are provided on the inner surface of the drum that houses the inner layer 6a. Further, the volume of the outer layer 6b is formed to be smaller by about one third than the volume of the inner layer 6a, and the density of the outer layer 6b is formed to be larger than the density of the inner layer 6a. In this example, a porous sponge material was used for the inner layer 6a, and felt and nonwoven fabric were used for the outer layer 6b. As a result, the ink is effectively prevented from scattering from the incision groove 5a due to the rotational centrifugal force of the drum 5 when the yarn is pulled out.
[0011]
Further, as shown in FIG. 3, a black filling inlet 5e is provided at the shaft core of the rotary drum 5, and a passage 5f is provided from the inlet 5e to the inner layer 6a. 5f can be opened and closed. Therefore, by removing the rotating drum 5 from the frame A, the ink can be easily filled from the injection port 5e.
[0012]
The ink drawing device configured as described above uses the ink thread 2 drawn out by the thread stopper 4. Simultaneously with the drawing out of the ink thread 2, the rotating drum 5 rotates and the ink impregnated in the outer layer 6b is transferred to the ink thread 2. At this time, the black ink 2 is in contact with the outer layer 6b of the rotating drum 5 in a compressed state, so that there is almost no friction caused by sliding as in the conventional case, and damage to the outer layer 6b and the black ink 2 can be prevented. In addition, the yarn can be pulled out smoothly by the rotation of the rotary drum 5, and yarn jamming and yarn breakage can be prevented in advance. When the drawing speed of the ink thread 2 is high, the contact time between the ink thread 2 and the outer layer 6b is short, but due to the high speed rotation of the rotary drum 5, a large centrifugal force acts and a large amount of ink is supplied to the outside. On the other hand, when the drawing speed is low, the centrifugal force is small but the contact time with the outer layer 6b is long, so that the black transfer to the black thread 2 can be performed uniformly at all times.
[0013]
Although typical embodiments of the present invention have been described above, the present invention is not necessarily limited to the above-described embodiments . In addition the present invention of that with the construction requirements, can of course be practiced with modification as appropriate within the range and have an effect.
[0014]
【The invention's effect】
Since the black line drawing device of the present invention is configured as described above, the rotary drum rotates during thread drawing and the black thread contacts the black ink impregnated material in a compressed state. Can hardly damage the ink impregnating material and the ink thread, and can smoothly pull out the thread by rotating the rotating drum, and can prevent the thread clogging and thread breakage. When the ink is supplied to the outside by the centrifugal force generated by the rotation of the rotating drum and the drawing speed of the ink is high, the contact time between the ink and the ink impregnating material is short, but the centrifugal force is greatly affected by the high-speed rotation of the rotating drum. When a large amount of black is supplied to the outside and the pull-out speed is slow, the centrifugal force is small, but the contact time with the black ink impregnating material is long, so the black transfer to the thread can always be performed uniformly, and , Ink impregnation For the most part are hidden housed in a rotating drum, resistant to drying or rain, moreover, black impregnated material is formed by two layers of inner and outer layers are separated by partition walls, the small ink in the partition wall Through holes are provided, and the black ink is supplied to the outside by centrifugal force due to rotation, so that there are various remarkable effects that even if used in a horizontal direction or on an inclined surface, it can be drawn in the same manner as in horizontal use.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of a black line drawing device according to the present invention.
FIG. 2 is a plan view showing a state in which a lid for closing the rotary drum of the black line drawing device is opened.
FIG. 3 is a cross-sectional view of the main part of the black line drawing device.
FIG. 4 is a longitudinal sectional view of a main part of the black line drawing device.
[Explanation of symbols]
A Frame 1 Thread winding reel 2 Black thread 3 Thread take-out port 4 Thread stop 5 Rotating drum 5a Cutting groove 5b Partition wall 5c Black hole 6 Black impregnated material 6a Inner layer 6b Outer layer

Claims (1)

A thread reel (1) that is attached to the frame (A) and automatically returns to the thread winding state at all times, and a black thread (2) that is formed at the tip of the frame (A) and wound on the thread reel (1). A thread take-out port (3) to be taken out, a thread stopper (4) detachably attached to the thread take-out port (3) and connected to an end of the ink thread (2), and the thread winding reel (1) It is detachably disposed between the thread take-out port (3), and the ink thread (2) is pressed against the peripheral surface of the ink thread (2) so that the ink thread (2) rotates forward and backward by pulling out and pulling back. It consists of a rotating drum (5), and the rotating drum (5) contains a black ink impregnated material (6) impregnated with black ink, and the black ink impregnated material (6) is in contact with the black ink (2). A part of the outer peripheral wall of the rotating drum (5) is cut in a ring shape to form a cut groove (5a) , and the ink impregnating material (6) is separated from the inner wall (6a) by the partition wall (5b ). As well as two layers of the outer layer (6b) , A black line drawing device in which a small black hole (5c) is provided in the partition wall (5b) , and black is supplied to the outside by a centrifugal force generated by the rotation of the rotating drum (5).

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