JPH1076485A - Ink-pot - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain a small number of part items, simple structure and convenience for use. SOLUTION: The ink-pot consists of a bobbin accommodation part accommodating a pulley and a spring drum between which a thread is hung over, a tank accommodation part accommodating a tank 4, which supplies ink to the thread 6, and a head part serving as a thread pulling-out part. A case body part 1 consists of right half of the bobbin accommodation part, rear half of the tank accommodation part, the bottom part of the tank accommodation part, and the bottom part of the head part. A handle 3 formed integrally with a shaft inserted into the central end of a spring, is mounted to the case body part 1, and the opening part on the opposite side of the handle is covered with a case cover 2. After the tank 4 is placed, a tank cover 5 is horizontally inserted into the case body part 1 from the head part side to assemble an ink-pot. A groove 1a is provided as a passage through which the thread 6 is pulled out from the pulley to the head side when the thread 6 is replaced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

SUMMARY OF THE INVENTION The present invention relates to an inkwell used as a carpenter's tool.

[0002]

2. Description of the Related Art In a building, a fitting, or an iron plate or a steel-frame work, a black pot is widely used as a tool for drawing a long straight line. In a conventional inkpot, a reel wound with a thread is axially mounted inside a case, and the thread is drawn out from a small hole through a black chamber having a liquid impregnated body such as cotton.

[0003] The winding of the thread that has been pulled out is performed in a real
As described in Japanese Patent No. 54874, etc., there is known a system in which a drawn-out yarn is automatically wound on a reel using a spiral spring. From the viewpoint of miniaturization, the amount of winding of the spring is smaller than the length of the thread to be used. Therefore, when the yarn is paid out for a long time, the winding of the spiral spring becomes full on the way, and it is not possible to feed the yarn any further. In such a case, the charge of the spiral spring is once released. Then, the yarn can be further pulled out. When the yarn is unwound in this manner, the portion pulled out later can be taken up by the force of the spiral spring, but the portion pulled out earlier can be manually turned by turning the handle connected to the winding shaft of the spiral spring. Take up.

However, in this method, a mechanism for releasing the charge of the spiral spring by releasing the ratchet member for rotating the handle and the winding shaft in one direction with a clutch lever, and a member for loosening the spiral spring by half a turn. Not only was it necessary and complicated, but the operation was also difficult.

As described in JP-A-6-278055 and the like, a locking portion is formed near the tip of the spiral spring, and a locking claw is protruded from the inner periphery of the spiral spring housing portion of the thread winding drum. The shape of the locking claw and the locking portion is locked to each other in a normal state. However, when the spiral spring is fully entangled, the configuration is such that the locking portion can ride over the locking claw to form a spiral. Ink pots that spin the spring are known.

However, in this inkpot, a mechanism for idling the spiral spring, a ratchet member for rotating the handle and the winding shaft in one direction (a one-way rotating body and an elastic inclined claw).
Are separately provided, and there is a problem that the structure has a large number of parts.

In addition, all of the above-described prior art inkwells are not easy to disassemble, and it takes time and effort to replace a thread, break a thread, or entangle a thread inside the inkwell. Further, there is a problem that it is not easy to pull out the yarn from the pulley side around which the yarn is wound to the yarn drawing-out port, and a lot of waste time must be spent.

Japanese Patent Laid-Open Publication No. 7-9365 discloses an inkpot that can be easily disassembled and allows the thread to be easily passed from the pulley to the thread pull-out port while keeping the thread attached. However, in this conventional technology, the groove through which the thread passes when the thread is replaced leads to the groove through which the thread passes when the inkpot is used,
Moreover, because of the bent groove, when using the inkwell,
There is a problem that it is difficult to use the thread if it gets into the bent portion and gets stuck.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has as its object to provide a user-friendly inkwell having a simple configuration with a small number of parts. To provide an inkwell having a drawer structure in which the thread can be further pulled out even when the spring is fully wound, and the thread can be easily disassembled and pulled out when replacing the thread, so that the thread is not caught in use. It is intended for.

[0010]

According to the present invention, in a first aspect of the present invention, there is provided a black inkpot having a case main body and a bobbin around which a bobbin is wound. A spring portion having a biasing force for winding the handle portion; a handle portion having a shaft for winding the spring portion; and a bidirectional rotation between the case body and the handle portion; Thus, there is provided a rotation restricting means having a directionality requiring a larger force for rotation in a direction opposite to the direction in which the spring portion is wound up.

According to a second aspect of the present invention, in the inkwell according to the first aspect, the directional rotation restricting means comprises a cam plate and an elastic member, and the cam plate is provided from a center. The radial direction has a portion that gradually increases in one rotation direction and a portion that increases sharply in the opposite rotation direction, and the steeply increasing portion is located on the opposite rotation direction side with respect to the radial line. The elastic member,
It has a projection which engages with the cam plate, and one of the cam plate and the elastic member is fixed to the case body, and the other is fixed to the handle.

According to the third aspect of the present invention, in the inkwell having a case main body portion and a thread winding portion wound with a thread, an ink tank for supplying ink to the thread, a case lid, and an ink tank cover are provided. And the case body is
It has a first opening in which the thread winding portion is inserted and covered with the case lid, and a second opening which is attached to the ink tank and is covered with the ink tank cover and serves as a head opening. Things.

According to a fourth aspect of the present invention, in the inkwell according to the third aspect, the case body is provided between the first opening and the second opening. And a groove for inserting a thread from the outside of the portion.

[0014]

FIG. 1 is a perspective view showing the overall structure of an embodiment of the inkwell according to the present invention. In the figure, 1 is a case body, 1a is a groove, 2 is a case lid, 3 is a handle,
Is a tank, 5 is a tank cover, 5a is a thread pull-out groove, 6
Is a thread and 7 is Kalco.

The ink fountain of this embodiment has a substantially cylindrical shape having a center axis in the horizontal direction, which accommodates a pulley on which a thread is wound and a spring drum and has a horizontal central axis so as to follow the outer shape of the pulley. A tank container for supplying ink such as black ink to the yarn 6 and a substantially cylindrical tank housing having a central axis in the vertical direction along the outer shape of the tank; And a head portion on the left side in the drawing, which has an opening portion serving as a drawing port and has an inclined grounding end. However, the shape of the case can adopt an appropriate shape, and is not limited to the shape described above.

The case body 1 comprises the right half of the above-described thread winding housing, the rear half of the tank housing, the bottom of the tank housing, and the bottom of the head. A handle 3 integrated with a shaft inserted into the center end of the spring is attached to the bobbin storage side of the case body 1, and the opening on the opposite side is turned around and fitted to the edge. It is covered with a case lid 2. The tank 4 is placed on the bottom of the tank housing portion from the opening of the tank housing portion of the case body 1 and the opening of the head portion connected thereto. Thereafter, the tank cover 5 is moved from the head portion side to the case body 1.
To be inserted horizontally, and the inkwell is assembled.

The case main body 1 has a right half of a thread winding storage section on the left side in the drawing and a rear half of a tank storage section on the right side in the drawing.
It is divided by the partition. As will be described later with reference to FIGS. 7 and 8, the partition portion has an opening on the side of the spool storage section and a tank housing so as to provide a passage for pulling the thread 6 from the pulley to the head side when the thread 6 is replaced. A groove 1a is provided between the opening and the opening on the side of the unit. In FIG. 1, a groove 1 a is shown on the outer surface of the case main body 1 between one end of the periphery of the opening on the side of the bobbin housing and the upper rear end of the opening on the side of the tank housing. The groove 1a penetrates the partition vertically downward. This groove 1a is located near the outer surface.
Although the wall surfaces of the groove are in contact with each other and are closed, the elasticity of the case material allows the thread to pass through and is substantially open to the outside of the case. And when using the inkwell,
The lower portion of the groove 1a is a portion through which the thread passes from the thread winding storage section to the tank storage section.

Actually, the right half of the bobbin storage section, the right side of the rear half of the tank storage section, and the right half of the partition section are integrally formed, and the left half of the rear half of the tank storage section and the partition section are integrally formed. The left half is assembled and integrated with screws (not shown). Therefore, the groove 1a is
It is provided along the boundary of the left and right partitions.

The thread 6 is pulled out from the head portion of the tank cover 5, and the tip of the thread is tied to the chalk 7.
When the line is actually drawn, the thread pull-out groove 5a in the head portion
The thread is pulled out according to. The head portion is an opening having a concave portion for accommodating the needle side of the needle 7. The handle 3 is provided with a circular hole for inserting a fingertip in a part of the outer periphery so that the handle 3 can be easily turned.

FIG. 2 is a first perspective view in which the inkpot shown in FIG. 1 is disassembled, and is a partial view along an axis on which a yarn is wound. In the figure, the same parts as those in FIG. 1b is a fixed cam plate, 3a is a shaft, 3b
Is a circumferential groove, 11 is a reverse rotation prevention spring, 11a is a mounting hole, 12 is a spring drum, 13 is a spring, 14 is a spring drum lid, 15 is a bearing, and 16 is a pulley.

A fixed cam plate 1b is formed around a center hole provided on the side of the bobbin accommodation portion of the case body 1. A reverse rotation preventing spring 11 is sandwiched between the solid cam plate 1b and the handle 3, and the shaft 3a of the handle 3 is passed through the center hole. As will be described later with reference to FIG. 4, the reverse rotation preventing spring 11 is fitted with a fitting protrusion 3c provided on the back surface of the handle 3 in its mounting hole 11a, and rotates integrally with the handle 3.

The shaft 3a is halved, inserted into the end of the spring 13 on the center side, and further inserted through the center of the spring drum cover 14 into the bearing 15. A small step is provided in the middle length portion of the shaft 3a, but a circumferential groove 3b is cut in this portion.
The bearing 15 has a substantially cylindrical shape, and a plurality of claw members are provided in the center hole thereof in an in-tooth shape, and the claw member is not easily disengaged by engaging with the circumferential groove 3b. Like that.

At three positions on the outer peripheral surface of the spring drum 12 and the spring drum cover 14 in which the springs 13 are housed, protrusions of a slight height are provided.
When the protrusion 6 is fitted, the protrusion and the concave portion on the inner peripheral surface of the pulley 16 are fitted, so that the three members integrally rotate. The yarn 6 is wound around the pulley 16, and the pulley 16 is detachable.

FIG. 3 is an exploded second perspective view of the inkwell shown in FIG. 1, and is a partial view along a yarn path. In the figure, the same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof will be omitted. 1c is a thread guide, 4a is an ink supply port,
b is an ink dropping part.

The pulley 16 is inserted into the case from the opening of the case main body 1 on the side of the bobbin storage, and the case lid 2 is
And the case lid 2 is fixed by a key groove provided on the outer peripheral surface of the case lid 2. A part of the outer peripheral surface of the case lid 2 is turned into the inside of the case main body 1, but the lower right portion in the drawing is cut away, and the passage of the thread 6 pulled out from the pulley 16 to the tank housing portion side. Is secured. There is a groove 1a in the partition on the case body 1 side facing this notch.

The tank 4 has an ink supply port 4a at an upper part and an ink dropping part 4b at a lower part. Ink dropping part 4
A groove for passing a thread is formed at the tip of b. Although not shown in the figure, the ink dropping portion 4b
A receiving member made of an ink-impregnated body such as a sponge is provided to face this. A thread 6 is hung in the groove of the ink dropping portion 4b, and the tank 4 is pressed against the urging force of a spring (not shown).
When the is pressed, the valve inside the ink dropping portion 4b opens, the ink flows out from the ink dropping portion 4b, the ink is supplied to the thread 6, and the ink is absorbed by the receiving member.

The thread 6 passes through a groove provided on the bottom surface of the head accommodating section and a groove provided on a thread guide section 1c provided upright on the bottom of the head accommodating section. After the tank 4 is placed on the case body 1, the tank cover 5 is fitted, and the thread 6 is pulled out from the head of the tank cover 5. In this specification, a liquid using a pigment or a dye, including ink, is called ink. The color is not limited to black, and an appropriate color suitable for inking, such as red or white, can be selected.

FIG. 4 is an explanatory view of the connection relationship between the handle shown in FIG. 2 and the reverse rotation preventing spring. In the figure, the same parts as those in FIG. 3c is a fitting projection, 11b is an arm, and 11c is an engagement projection.

The reverse rotation preventing spring 11 has a base point at the position of the mounting holes 11a provided on the ring surface at intervals of 120 degrees.
The arm 11b is provided along the circumferential direction. An engagement protrusion 11c is provided at the tip of each arm 11b, and the engagement protrusion 11c protrudes toward the center of the ring to provide a smooth curved surface. Have a tip. This reverse rotation prevention spring 11
Since the arm 11b is made of an elastic synthetic resin, the arm 11b is elastically deformed so that the arm 11b can slightly turn around the base point toward the center of the ring. The handle 3 and the reverse rotation prevention spring 11 are engaged with each other by a fitting projection 3 b protruding from the back surface of the handle 3 and a mounting hole 11 a of the reverse rotation prevention spring 11.

FIG. 5 is an enlarged view of the reverse rotation preventing spring and the fixed cam plate shown in FIG. FIG. 5A is an enlarged view of a reverse rotation preventing spring, and FIG. 5B is an enlarged view of a fixed cam plate. In the figure, the same parts as those in FIG. FIG.
5A is a view of the reverse rotation preventing spring 11 as viewed from a surface opposite to that of FIG. Similarly, in FIG. 5B, the fixed cam plate 1b is viewed from the handle 3 side.

As shown in FIG. 5B, the fixed cam plate 1b
Is composed of three regions having the same peripheral shape. When viewed from one region, the arc portion C, which is an arc decentered from the center point O, occupies most, and is perpendicular to the radial line from the center point O. There is a straight line portion B which is a straight line, and is composed of a steep slope portion A which linearly connects the straight line portion B and an end of an arc portion in an adjacent region. In the arc portion C, the length of the diameter from the center point at the boundary point with the straight line portion B is the shortest, the length of the diameter gradually increases in the clockwise direction, and the distance from the inclined portion A in the adjacent region is small. The diameter becomes the longest at the boundary point. The straight line of the inclined portion A is inclined counterclockwise with respect to the radial line from the center point O at the boundary point with the linear portion B, and is inclined at 30 degrees in the illustrated example. It is to be noted that the linear portion B may not be provided, and only the inclined portion A and the arc portion C may be configured.

The reverse rotation preventing spring 11 and the fixed cam plate 1b
The rough configuration is similar to a conventional ratchet mechanism that can rotate only in one direction and cannot rotate in the reverse direction.
However, since the straight line of the inclined portion A of the fixed cam plate 1b is inclined in the counterclockwise direction, when a large rotational force is applied to the shaft 3b shown in FIG. 4 and the like, the shaft 3b can rotate in the reverse direction. It becomes. With such a mechanism, it becomes possible to pull out the yarn 6, automatically wind the yarn, idle when the spring is fully wound, and then charge the spring 13 by the handle 3.

FIG. 6 is an explanatory diagram of the operation of the yarn pulling and winding mechanism. FIG. 6A is an explanatory diagram when the yarn is pulled out and the yarn is rewound. FIG. 6B is an explanatory diagram when the winding of the spring is full, and FIG. FIG. 4 is an explanatory view when the spring is charged by the handle. In the figure, the same parts as those in FIGS. 2 and 4 are denoted by the same reference numerals, and description thereof will be omitted. The reverse rotation preventing spring 11 and the fixed cam plate 1b are the same as those in FIG. 5, and the illustration of the reverse rotation preventing spring 11 is partially omitted.
However, the spring 13, the pulley 16, and the thread 6 are described for explanation of the operation, and do not represent actual shapes and dimensions.

The pulley 16 shown in FIG. 2 is engaged with the spring drum cover 14 and the spring drum 12, and the outer end of the spring 13 is fixed to the spring drum 12. Therefore, pulley 16
Rotates in conjunction with the outer end of the spring 13. In addition, as shown in FIG.
The handle 3 is fixed to the back surface, and the handle shaft 3a is
As shown in the figure, the spring 13 is attached to the end on the center side. Therefore, the reverse rotation prevention spring 11 is
It rotates in conjunction with the inner end of the spring 13.

FIG. 6A shows a normal state. When pulling out the yarn 6, the pulley 16 rotates counterclockwise. At the same time, the outer end of the spring 13 also rotates counterclockwise, and the center end also attempts to rotate in the same direction.
Is located at the straight portion B of the fixed cam plate 1b shown in FIG. 5 (B), and is prevented from rotating by contacting the inclined portion A, so that the center end does not rotate. Therefore, as the yarn 6 is pulled out, the spring 13 is charged. At this time, thread 6
Is released, the yarn 6 is pulled back again by the biasing force of the charged spring 13 in the rewinding direction, and the pulley 16
Automatically wound up.

As shown in FIG. 6B, the spring 13
If it is desired to pull out the thread 6 further after the is tightened, if the force for pulling out the thread 6 is increased, the engagement protrusion 11c of the reverse rotation preventing spring 11 is shown in FIG. 5B of the fixed cam plate 1b. As a result, the handle 3 rotates counterclockwise in the reverse direction, the spring 13 is released, the pulley 16 rotates counterclockwise, and the thread 6 can be pulled out longer. .

When the yarn 6 is unwound in this manner, the yarn 6 longer than the winding amount of the spring 13 is drawn out. Therefore, the urging force of the spring 13 is lost during automatic winding of the yarn. Thereafter, the handle 3 is manually rotated to wind the yarn.

At this time, as shown in FIG. 6C, the handle 6 is turned clockwise after the thread 6 is pressed with a finger so as not to be pulled back. At this time, the engagement protrusion 11c of the reverse rotation prevention spring 11 rotates in the clockwise direction, which is the sliding direction, while engaging with the peripheral surface of the fixed cam plate 1b. At the same time, the center end of the spring 13 also rotates clockwise. On the other hand, since the yarn 6 is stopped, the pulley 16 is prevented from rotating, and the outer end of the spring 13 does not rotate. As a result, the spring 13 is charged. Because of the sliding direction, the handle 3 can be turned lightly. After charging the spring 13, the yarn 6 is released and rewound. Note that the thread 6 may be unwound at the same time while turning the handle 3 clockwise without pressing the thread 6 with a finger.

In the above description, the fixed cam plate 1b is fixed to the case body 1 side, and the reverse rotation preventing spring 1 is fixed to the handle 3 side.
However, the reverse rotation preventing spring 11 may be fixed to the case body 1 side, and the fixed cam plate 1b may be fixed to the handle 3 side. In this case, the reverse rotation preventing spring 11 does not rotate, and the fixed cam plate 1b rotates. However, in this state, the rotation direction in which the rotation becomes easy becomes the counterclockwise direction, so it is necessary to change the reverse rotation preventing spring 11 and the fixed cam plate 1b shown in FIG.

FIG. 7 is an explanatory diagram of the yarn path in the use state. FIG. 7A is an explanatory view showing the internal structure of the inkpot, and FIG. 7B is a cross-sectional view taken along the cutting line A in FIG. 7A. In order to explain the path of the yarn, the structure is shown schematically. In the figure, the same parts as those in FIGS. 1 to 3 are denoted by the same reference numerals, and description thereof will be omitted. 1d to 1g are first to fourth guide pins, and 5b is a guide pin. The details of the groove 1a are shown in FIG. 7B because it is difficult to understand in FIG. 7A.

As shown in FIG. 7B, the case body 1
A groove 1a is provided in a partition portion provided between the side of the bobbin storage portion and the side of the tank storage portion. The groove 1a is a groove connecting the opening on the side of the bobbin housing section and the opening on the side of the tank housing section, and is open to the outside of the case of the case main body 1. A passage is drawn from the pulley 16 to the head side. The upper portion of the groove 1a is narrowly contacted from the left and right, and the lower portion of the groove 1a is
It becomes a passage for the thread 6 when the inkpot is used.

In the passage of the yarn 6 in the case body 1, the first
Or a fourth guide pin 1d is provided. The first guide pin 1d is provided on the side of the groove of the partition that connects the side of the bobbin container and the side of the tank bobbin, and the second guide pin 1d.
The third guide pins 1e and 1f are provided immediately before and immediately after reaching the ink dropping portion 4b. The fourth guide pin 1g is provided below a groove provided at the tip of the head in the case body 1. The guide pin 5 is also provided in the thread drawing groove 5a at the end of the head portion of the tank cover 5.
b is provided. The yarn 6 is supplied from the pulley 16 to the first and second guide pins 1d and 1e, the ink dropping portion 4b,
It is pulled out of the head portion through the third guide pin 1f.

FIG. 8 is an explanatory diagram of the procedure for pulling out a thread when the thread breaks or when the thread is replaced. FIG.
8A shows a state in which the pulley is set, FIG. 8B shows a state in which the yarn is pulled out from the opening on the side of the bobbin storage to the opening side of the tank storage, and FIG. FIG. 8D is an explanatory view when the tank cover is set. In the figure, the same parts as those in FIGS. 1 and 7 are denoted by the same reference numerals, and description thereof will be omitted. Spring drum 1 shown in FIG.
2. The structure is simply illustrated, for example, the illustration of the spring drum cover 14 is omitted.

First, referring to FIG. 8 (D), description will be given of a case where the pulley 16 is removed. The pulley 16 on which the thread is wound can be removed by removing the case lid 2 from the opening of the case main body 1 on the side of the thread storage section. A new thread 6 is wound around the pulley 16 or the thread 6 is exchanged with the pulley 16. It is permissible to attach the chalco 7 to the new thread 6 in advance. In addition, the pulley 16 can be taken out together with the old thread 6 to which the chalco 7 has been attached. In this case, however, the pulling out of the thread at the time of reassembly described with reference to FIGS. The old thread can be taken out according to the following procedure.

In FIG. 8A, when the thread 6 is exchanged, the pulley 16 on which the thread 6 is wound is inserted into the spring drum 12 shown in FIG. Then, the spring drum cover 14 is fitted. FIG.
As shown in (B), the yarn 6 is drawn out of the opening on the side of the bobbin storage section through the constricted portion of the groove 1a and toward the opening side of the tank storage section. As shown in FIG. 8C, when the tank 4 is set by pressing the thread 6 with the groove at the tip of the ink dropping portion 4b, the thread 6 becomes the first to third guide pins 1d,
1e and 1f, and is passed through the groove of the yarn guide 1c. As shown in FIG. 8D, when the tank cover 2 is set, the thread replacement is completed, and the ink fountain is reassembled.

In the above description, the thread is passed through the groove 1a from the outside of the case of the case body 1, but when the groove 1a is not opened to the outside of the case, in other words, when it is formed as a small hole, the thread is passed through the small hole. The thread can be inserted between the opening on the side of the bobbin storage section and the opening on the side of the tank storage section. Since both openings are wide open, the insertion is relatively easy when the chalco 7 is not attached.

The anti-reverse spring and the fixed cam plate described with reference to FIG. 5 and the like can be used for other purposes as rotation regulating means having general directionality. In particular, it is suitable for use in pulling out or winding up a long body using the biasing force of a spring.

That is, in a case where a long body is wound in the case body, a spring part which is connected to the winding part and has an urging force for winding the long body, and a shaft for winding the spring part Is provided, furthermore, bidirectional rotation is possible between the case body and the handle,
In addition, a rotation restricting means having a directionality requiring a large force for rotation in a direction opposite to the direction in which the spring part is wound up by the handle part is provided, and the reverse rotation described above as the rotation restriction means having this directionality is provided. A prevention spring and a fixed cam plate may be employed. Like the inkpot, the long body can be pulled out even after the spring is tightened, and
When rewinding, it is possible to apply a charge to the spring portion. More specifically, if the long body is a tape-shaped body with a scale, it can be used for a tape measure.

[0049]

As is apparent from the above description, according to the first aspect of the present invention, a spring portion which is connected to the thread winding portion and has a biasing force for winding the yarn, and a shaft which winds the spring portion. Between the handle portion, the case body portion and the handle portion, the bidirectional rotation is possible, and a large force is applied to the rotation in the opposite direction as compared with the rotation in the direction in which the spring portion is wound by the handle portion. The provision of the rotation restricting means having the necessary directionality allows the yarn to be further pulled out even when the spring is fully wound, and the spring is charged and the yarn is wound by manual rotation of the handle. It has the effect of being easy to use.

According to the second aspect of the present invention, the rotation restricting means having directionality comprises a cam plate and an elastic member,
The cam plate has a portion in which the radial distance from the center gradually increases in one rotation direction and a portion that increases sharply in the opposite rotation direction. The elastic member has a projection that engages with the cam plate, one of the cam plate and the elastic member is fixed to the case body, and the other is fixed to the handle. Therefore, there is an effect that a rotation regulating unit having directionality can be realized with a simple configuration having a small number of parts.

According to the third aspect of the present invention, there is provided an ink tank for supplying ink to the thread, a case lid, and an ink tank cover, and the case body has a first portion in which the thread winding portion is inserted and covered by the case lid. And the second opening which is the head opening when the ink tank is attached and which is covered with the ink tank cover, makes it easy to disassemble the thread winding part and the ink tank when attaching and detaching it, and the thread breaks. At the time, even when the yarn is exchanged, there is an effect that the yarn can be pulled out simply by passing the yarn through the passage between the first opening and the second opening, which is easy to disassemble. In the head opening,
Since a special thread passage is not required when the thread breaks or when the thread is replaced, there is an effect that the thread does not get caught in such a special passage when the inkpot is used.

According to the fourth aspect of the present invention, the case body has a groove between the first opening and the second opening through which a thread is inserted from outside the case body. There is an effect that the yarn can be easily passed between the first opening and the second opening. There is no problem even if the thread has a chalk.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the overall configuration of a first embodiment of a sump according to the present invention.

FIG. 2 is a first perspective view in which the inkpot is disassembled, and is a partial view along an axis on which a yarn is wound.

FIG. 3 is a second perspective view in which the inkpot is disassembled, and is a partial view along a yarn path.

FIG. 4 is an explanatory diagram of a connection relationship between a handle and a reverse rotation prevention spring.

FIG. 5 is an enlarged view of a reverse rotation preventing spring and a fixed cam plate.

FIG. 6 is a diagram illustrating the operation of a yarn pulling and winding mechanism.

FIG. 7 is an explanatory diagram of a yarn path in a use state.

FIG. 8 is an explanatory diagram of a thread withdrawal procedure when the thread breaks or when the thread is replaced.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Case main body part, 1a ... Groove, 1b ... Fixed cam plate, 2 ...
Case lid, 3 ... handle, 3a ... shaft, 4 ... tank, 5 ...
Tank cover, 6 ... thread, 7 ... calco, 11 ... reverse rotation prevention spring, 12 ... spring drum, 13 ... spring, 14
... Spring drum lid, 15 ... Bearing, 16 ... Pulley.

Claims (4)

[Claims] An ink jet fountain having a case body and a spool wound with a thread wound thereon, wherein the spring is coupled to the spool and has a biasing force for winding the thread, and a shaft for winding the spring. Between the handle portion and the case body portion and the handle portion, and a rotation in a direction opposite to a direction in which the handle portion winds the spring portion. And a rotation regulating means having a directionality requiring a large force. 2. The rotation restricting means having directionality includes a cam plate and an elastic member, and the cam plate has a direction in which a radial distance from a center gradually increases in one rotation direction. A portion that increases sharply in the rotation direction, and the portion that increases sharply is inclined toward the opposite rotation direction with respect to a radial line, and the elastic member engages with the cam plate; The ink fountain according to claim 1, wherein the cam plate and the elastic member are fixed to the case body, and the other is fixed to the handle. 3. A black inkpot having a case body portion and a thread winding portion around which a thread is wound, comprising: an ink tank for supplying ink to the thread, a case lid, and an ink tank cover,
The case body includes a first opening in which the thread winding portion is inserted and covered by the case lid, and a second opening in which the ink tank is attached and which is covered by the ink tank cover and serves as a head opening. A sumi pot characterized by having. 4. The case body has a groove between the first opening and the second opening through which a thread is inserted from outside the case body. 3
The inkwell described in the above.