JP3793929B2 - One-touch marker holder - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a stationery and a writing instrument as office supplies. In particular, the present invention relates to a writing instrument that uses ink, draws ink from an ink reservoir by capillary action of a fiber bundle or porous resin, and uses the tip of the fiber bundle or the like as a pen tip as a writing tip by molding. A plurality of names such as markers, magic inks, felt pens, sign pens, etc. are commonly used for this type of instrument depending on manufacturers, uses, etc., even if they have the same structure and principle. In this specification, these are collectively referred to as markers. Even if it is a brush or the like, it has a reservoir for supplying ink or ink to the tip of the writing tip, and the size of the portion corresponding to the tip is the same as each writing instrument This also belongs to the marker.
[0002]
[Prior art]
There are two types of markers: oil-based inks and water-based inks. In general, inks are volatile. If you leave the pen tip exposed like a fountain pen, the ink will evaporate and dry out. Therefore, when not in use, it is necessary to put a cap on the pen tip and to keep it sealed from the outside air. FIG. 1 shows an external view of one example of a marker in a position where it is laid horizontally with the cap removed. The left side is an elevational view, and the right side is a side view as seen from the pen tip side. FIG. 2 is a cross-sectional view in a plane including the central axis of the marker of FIG. 1, but since the subject of the present invention is not related to the internal structure of the marker, only the outline representing the outer shape is described. Marker caps are indicated by dotted lines in the figure. Depending on the product, the marker cap includes a large one 15 that covers the marker body 14 and a small one 16 that covers only the pen tip 11. Markers vary in size and shape depending on the product, but in this specification, the shape shown in FIGS. 1 and 2 is displayed as the basic shape of the marker, and the marker itself, which will be described later, is also the subject of the claims in cross-sectional views. Except for one example, only the outline is described without drawing parallel diagonal lines. In the following, the direction in which the pen point of the marker faces the front is referred to as the front, and the opposite side is referred to as the rear.
[0003]
[Problems to be solved by the invention]
When using the marker, attaching and detaching the cap is quite troublesome. The biggest reason is that it requires both hands to attach and detach. This is particularly troublesome when used on whiteboards. For other writing utensils, it has become a challenge to make it easier to switch the state of the tool when it is in use and when it is not being used, but many have found solutions, and ballpoint pens and mechanical pens have a knock-type mechanism. The ones that allow the pen tip or the lead to be inserted and removed with one touch with one hand have become widespread. Knock-type pens that can be operated with one hand even with a fountain pen are available on the market (manufactured by Pilot). No.
The present invention presents a novel system that enables switching between use and non-use with one-handed operation in order to eliminate the burden of attaching and detaching the marker cap.
[0004]
[Means for Solving the Problems]
In the present invention, a marker holder capable of storing the marker therein is configured, and a function corresponding to the attachment / detachment of the cap is provided in the holder. Storing does not mean only when the entire marker is in the holder, but may be only a part. This is because almost all of the markers on the market are discarded when the ink runs out, and adding a new structural feature to the marker body is judged to be disadvantageous as a product in terms of cost. However, the present invention is mainly intended for this holder. However, even if the holder or the product having the same function as the marker is integrated and integrated as an independent product, the same effect can be expected in terms of function and the holder can be used. Since some types can be manufactured at low cost, an item for the marker itself having the function is provided in the claims in the claims.
In the first place, it is troublesome to attach and detach the cap because the operation is troubled by translational movement of the cap with respect to the marker body, and the cap is separated from the marker every time it is attached and detached. Therefore, in the present invention, the movement of the cap or the equivalent is replaced with rotational movement. As a result, even when the cap is removed from the pen tip, it is not necessary to remove the cap from the marker main body, and the operation when the pen tip is put on the pen tip again can be simplified. In addition, the external force for movement associated with the attachment and detachment of the cap, that is, the force applied to the instrument with one hand depends on the force in the translational direction in the longitudinal direction of the instrument, or the force applied directly to the cap is applied. Present. In the claims section, the devices according to “Claim 1” and “Claim 2” are based on the former method, “Claim 3” is based on the latter, and “Claim 4” and “Claim 5” are It improves or supplements the previous three items.
[0005]
First, a method for switching between non-use and use by external force in the translational direction will be described. As this type of system, a known type that is already commonly used for other writing instruments such as a ballpoint pen is a knock type, but this operation mechanism is also used in the present invention. The pen tip is pushed out of the instrument by an external force in the translational direction, exposed to protrude, and put into use.
FIG. 3 is a cross-sectional view showing the structure and the mode of operation of the simplest knock type marker holder embodying this operation mechanism. This is easily inferred from the well-known mechanism of other writing instruments. Although this device itself is not the subject of the present invention, it is a prototype of the present invention, and the present invention is an improvement of this.
The upper diagram of FIG. 3 shows a state when not in use, and the marker 1 is housed in a state where the cap is removed from the cylindrical holder 2 which is slightly narrowed and opened as the holder front end 21. The appearance of the instrument is a rotating body, and the figure is a cross-sectional view of a plane including the central axis of the rotating body, and the direction of the opening / closing lid rotating shaft 23 in the figure is the viewing direction. Immediately behind the holder front end 21, there is a partition substrate 24 that constitutes a partition, a part of which opens as a pen tip entrance 25. The nib 25 is provided with an opening / closing lid 22, which rotates around the opening / closing lid rotating shaft 23 and is closed when an external force is not applied, such as a torsion spring. . When the open / close lid is closed, the marker nib 11 is in a sealed state. The opening / closing lid 22 plays a role corresponding to a normal marker cap. The part of the holder in front of the partition wall base 24 prevents the opening / closing lid 22 from being exposed, and contributes to the improvement of the appearance and writing performance, but the effect is relative and even if it does not exist, it can perform a temporary function. . There is a main coil spring 26 between the partition wall substrate 24 and the marker 1, which is in a state slightly compressed from the natural length in the state of the above figure, and further compressed when the marker moves forward.
The slide rotor 27, the grooved stator 28, and the knob 30 are in a state of being connected as a group behind the marker. These constitute a mechanism that is often used in knock type ballpoint pens. Two parallel long and short ones in which the protrusions of the slide rotor are engraved on the grooved stator are alternately arranged in an annular shape. Each time the knob is pressed while the groove is translated, it moves to the next groove.When the knob is pressed once, the marker stops pushing forward, and then when it is pressed, it returns to its original position. Is for the operation to repeat. This mechanism is hereinafter referred to as a double knock type in the present specification, but since it is a well-known mechanism, the drawings are also omitted and will not be described in further detail.
Hereinafter, a state when the knob 30 is pushed and the marker 1 is pushed to the left is shown from the middle diagram to the lower diagram in FIG. The opening / closing lid 22 is pushed open by the pen tip 11 of the marker, and the pen tip penetrates the pen tip inlet / outlet 25 and reaches the outside of the holder 2 to reach the state of use as shown in the figure below. Next, when the knob 30 is pushed, the state of the above figure is restored by the action of the above-mentioned double knock mechanism and the restoring force of the compressed main coil spring 26.
[0006]
The operation mode of the instrument of FIG. 3 is the same as that of a commercially available double knock type ballpoint pen when the marker 1 is replaced with a ballpoint pen core and the opening / closing lid 22 and the partition wall substrate 24 are removed. When the marker 1 is replaced with a fountain pen nib with an ink cartridge, it overlaps with a commercially available knock-type fountain pen. In the case of this fountain pen, the shape of the fountain pen is not a rotating body with a central axis like a marker, and the position of the opening and closing lid and the state of rotation are different, but in principle it is provided with an opening and closing lid that pushes it with the pen tip It is the same as the instrument of FIG.
However, the structure of FIG. 3 allows a knock type marker to be bent once, but unlike a fountain pen or ballpoint pen, the pen tip of the marker is not rigid. The pen tip is damaged by the applied force, and the ink attached to the opening / closing lid causes the instrument and the pen tip to become dirty and greatly impair the writing performance. In view of this reason, although the present invention is based on the structure of FIG. 3, the pen tip 11 does not contact the open / close lid 22 and the knob 30 is pushed and the open / close lid is pushed open by the force of moving the marker in translation. We present a new way to push out.
[0007]
With respect to this method, the present invention further presents two methods. The claims relate to “Claim 1” and “Claim 2”. First, what is related to "claim 1" will be described.
4 is different from that shown in FIG. 3 in that an intermediate pushing cylinder 40 and an auxiliary spring 41 are provided. Further, in FIG. 3, the main coil spring 26 is interposed between the marker 1 and the partition wall substrate 24. However, in FIG. 4, it is located between the marker 1 and the intermediate pushing cylinder 40 and expands and contracts depending on the relative positional relationship between them, that is, the distance. . The main coil spring 26 must be a spring that is sufficiently stronger than the force that closes the auxiliary spring 41 and the opening / closing lid 22, that is, a spring having a large spring constant. The auxiliary spring 41 is interposed between the partition wall substrate 24 and the intermediate pushing cylinder 40. In FIG. 4, the same parts as those in FIG. 3 are omitted in the middle and lower figures. Omission of similar figures is appropriately made in the drawings of the present application.
[0008]
An example of the intermediate pushing cylinder 40 is shown in the sketch of FIG. The left figure in FIG. 5 is a funnel or funnel shape in a typical shape. The inlet / outlet insertion portion 44 on the side with the smaller diameter is installed in the holder so that it enters the pen tip / entrance 25, and the position control unit 45 on the side with the larger diameter determines the position of this part in the holder. The inside can be translated along the length of the cylinder. In addition, the inner diameter of the entrance / exit insertion portion 44 must be larger than the outer diameters of the pen tip 11 and the pen tip support shaft 12. The right diagram in FIG. 5 is another shape that performs the same function as the left diagram, and is referred to again in the section “Example”.
[0009]
FIG. 6 is a sectional view showing the structure and operation of the holder according to “claim 2”. 3 is different from that of FIG. 3 in that a back projection 42 is provided on the back side of the opening / closing lid 22, that is, a side facing the pen tip when not in use, and a side projection 43 is provided on the pen tip support shaft 12 of the marker 1. It is a point provided. Since these are not on the cut surface of the cross-sectional view, they are represented by dotted lines. The back projection 42 is directly connected to the opening / closing lid 22 and rotates together. The back projection 42 and the side projection 43 start contact with each other when the marker 1 advances to some extent as the marker is pushed out, and thereafter the pen tip is exposed to the outside without disturbing the rotation of the opening / closing lid 22. Each position and shape must be determined so that it is always in contact until it becomes.
[0010]
FIG. 7 shows an external view of the opening / closing lid 22 provided with the back surface protrusion 42, and FIG. 8 shows an external view of the marker provided with the side protrusion 43. In both figures, the right figure is a side view when viewed from the left and the upper figure is a plan view with respect to the position where the lower left figure is an elevation view. In the holder, the pen tip 11 is positioned so as not to contact the opening / closing lid 22 between the two back projections 42.
[0011]
Next, a method of switching between the non-use and the use by using an external force directly on the marker cap as a rotary type will be described. It is the instrument which concerns on "Claim 3".
FIG. 9 shows a cross-sectional view showing the structure and the mode of operation of the apparatus, which is the simplest, and is a holder provided with a rotating cap 50 that rotates around a cap rotating shaft 51. The rotating cap rotates without touching the pen tip 11, and in the fully rotated state from the closed state when not in use, i.e., the fully rotated state, all parts of the rotating cap 50 are more than the pen tip. Must be behind. In addition, the rotating cap must be able to be fixed in each position when not in use and in use. The fixing means is not limited. In FIG. 9, a cap receiving hole 52 for receiving the cap for fixing the cap when not in use, and a cap stopper 53 for fixing the rotary cap 50 during use after being removed from the pen tip.
[0012]
FIG. 10 shows a cross-sectional view of an instrument in which FIG. 9 is further developed and provided with a rotation control spring 55. The spring is a coil spring. One end of each end of the spring is on the rotating cap side, the other end is on the main body side of the holder other than the cap rotating shaft 51, and the distance between the two ends is rotated as the rotating cap 50 rotates. It is attached to become the largest in the middle stage. FIG. 11 shows an external view in a state corresponding to the upper view of the instrument shown in FIG. As in FIGS. 7 and 8, the lower left is an elevation, the right is a side view, and the upper is a plan view.
[0013]
[Action]
First, the mode of operation of the instrument according to “Claim 1” shown in FIG. 4 will be described. As in the case of FIG. 3, the state when not in use is shown in the upper diagram, and from this state, the knob 30 is pushed to push the marker 1 forward, and the state in use when the pen tip is out of the holder is shown in the lower diagram. The middle figure shows the intermediate state. As the marker 1 moves forward, the intermediate pusher tube 40 also moves forward. As a result, the auxiliary spring 41 contracts, and at the same time, the tip of the inlet / outlet insertion portion 44 of the intermediate pusher tube 40 contacts the opening / closing lid 22 to push it. open. During this time, the main coil spring 26 between the marker 1 and the intermediate pusher cylinder 40 is a strong spring, so that it is not compressed and moves in parallel while maintaining the distance between them substantially constant, so that the pen tip 11 contacts the open / close lid 22. Never do. When the opening / closing lid 22 is open, the position control unit 45 of the intermediate push cylinder 40 contacts the partition wall substrate 24 and cannot move forward any further. Alternatively, the auxiliary spring 41 is compressed to the limit and is no longer contracted, and the movement of the intermediate push tube 40 is suppressed. If force is further applied to the knob 30 from this state, the main coil spring 26 starts to contract next, the marker 1 moves further forward, and the pen tip 11 passes through the intermediate push tube 40 and is exposed outside the holder. It becomes the state of time. When the knob is pushed all the way down, the above-mentioned double knock mechanism works to temporarily fix the marker at that position. Next, when the knob is pushed again, the state shown in the upper diagram of FIG. 4 is restored by the double knock mechanism and the restoring force of the main coil spring 26 and the auxiliary spring 41.
[0014]
Next, the mode of operation of the instrument according to “Claim 2” shown in FIG. 6 will be described. 6 is the same as the case of FIG. When force is applied to the knob 30 from the position shown in the upper diagram, the marker 1 moves forward and the main coil spring 26 is compressed. In the instrument of FIG. 6, the mode and action of the main coil spring are the same as in FIG. Along with this, the side projection 43 provided on the marker 1 comes into contact with the back projection 42 of the opening / closing lid 22, and the force is transmitted to the opening / closing lid 22 while keeping this contact, and the marker 1 is pushed forward. Continue to move to the state shown in the figure below. During this time, the pen tip does not enter the space between the opening / closing lid 22 and the two back surface protrusions 42 and directly contact the opening / closing lid 22. The size of the applicable marker nib 11 is determined by the degree of protrusion of the back surface protrusion 42. From the standpoint of stabilizing the action, the case where there are two pairs of protrusions symmetrically on both sides of the pen tip is illustrated, but one pair is also possible. It is necessary to consider the shape of each part so that the marker does not rotate around the central axis of the instrument during the movement process. When the knob 30 is pushed in the state shown in the lower part of FIG. 6, the state returns to the state shown in the upper part by the restoring force of the main coil spring 26 based on the double knock type mechanism.
[0015]
Next, the mode of operation of the instrument according to “Claim 3” shown in FIGS. 9 and 10 will be described. The relationship between the upper, middle and lower three figures in each of the two figures is the same as in the case of FIGS. In these instruments, the marker 1 is fixed in the holder and does not move when switching between non-use and use. 4 and 6 corresponds to a structure in which the holder front end 21 overlaps with the pen tip inlet / outlet 25, and the pen tip 11 always protrudes from the pen tip inlet / outlet 25. 50 is in a state of covering and closing the nib. This is a simple mechanism in which a force is applied by applying a thumb to the cap upper end portion 54 to hold and support the holder 2 or the marker barrel portion 14 with another finger, and the rotating cap 50 is rotated to expose the pen tip. This operation can be performed with one hand. There are no writing instruments that perform similar operations, but other small portable devices are similar to opening the lid of a lighter that is a smoking tool. Introducing this operation into the use of a marker to simplify the operation is the main point of the instrument according to claim 3. Since it is a rotary type, the cap is not detached from the instrument even when the pen tip is exposed.
In the apparatus of FIG. 9, when not in use, the rotating cap 50 is fixed in a state where the rotating cap 50 is fitted in the cap receiving opening 52, and when used, the cap stopper claw 53 is fixed with the rotating cap 50 fully opened. In the instrument of FIG. 10, a rotation control spring 55 is provided between the rotation cap 50 and the holder body. Since the end of the spring on the holder body side is slightly separated from the cap rotation shaft 51 as the center of rotation as shown in the figure, the spring length changes depending on the rotation angle of the rotation cap, and becomes shorter in the state shown in the upper and lower figures. , Stretched around the middle position. If the spring is extended slightly from the natural length at the positions shown in the upper and lower figures, the state of the rotating cap 50 is stabilized at these positions and is fixed to a level sufficient for use. That is, when the hand is released during the rotation, the rotation cap 50 returns to the closed state when the rotation angle is small, and when the angle exceeds a certain angle, the rotation cap is further rotated and opened. In FIG. 10, the cap stop claw 53 of FIG. 9 is not provided, and the cap receiving opening 52 may not be provided. Unlike the normal marker situation in which the cap is removed, the instrument shown in FIGS. 9 and 10 is used with the rotating cap 50 attached to the holder 2, and this portion protrudes and is somewhat of a writing operation. Although there are concerns that hinder, the marker is originally intended for thick and large writing applications, and there are few cases of writing delicate and fine U, so it can be said that there is no problem in practical use. It is possible to further improve the ease of writing by further adjusting the shape and size of the rotating cap by devising the design.
[0016]
【Example】
Next, each method will be described in more detail according to the order taken up in the previous section.
The instrument shown in FIG. 4 according to “Claim 1” is characterized in that an intermediate push tube 40 is provided. As described above, a sketch of these two examples is shown in FIG. The left figure shows a typical shape whose mode of operation is easy to understand, but the outer diameter of the cylindrical entrance / exit insertion portion 44 is smaller than the diameter of the pen tip entrance / exit 25 and the periphery of the bottom surface of the truncated cone-shaped position control portion 45. The outer diameter of the end corresponding to the part needs to be slightly smaller than the inner diameter of the holder. The length of the entrance / exit insertion portion 44 is defined from this viewpoint because the opening / closing lid 22 is pushed open by movement corresponding to the distance. The intermediate pushing cylinder 40 moves in the holder in parallel to the length direction of the holder, that is, the central axis direction, and performs its function. The right figure of FIG. 5 is another example of the middle push cylinder 40, and the position control unit 45 is simplified by using only a three-legged skeleton. Even in this case, parallel movement is possible by bringing the tips of these three legs into contact with the inner wall of the holder. Further, the front end of the inlet / outlet insertion portion 44 is slanted. This is because the protruding side that first comes into contact with the marker when the marker is pushed out is placed at a position far from the rotary shaft 23 of the opening / closing lid, and the opening / closing lid 22 starts to open. This is to reduce the resistance. At this time, it is inconvenient if the middle push cylinder 40 rotates uncontrollably around the center axis of the holder in the process of movement, so that a groove for the three legs is provided in the length direction of the holder, The shape of the cross section perpendicular to the central axis of the pen tip entrance 25 and the entrance insertion portion 44 may be other than a circle.
[0017]
The function of the auxiliary spring 41 is that the middle push cylinder 40 is slightly separated from the opening / closing lid 22 when not in use, and the opening / closing lid 22 does not interfere with the partition wall substrate 24 and closes. Since it is only necessary to have a relatively small expansion / contraction change width required for the intermediate push cylinder to open and close the opening / closing lid, it may be a leaf spring instead of a coil spring. A leaf spring, which is used when the dry battery is supported in the case as an electrode, is provided on the rear surface of the partition wall substrate 24 by weakening the force of the spring. When a leaf spring is used, the operation is more stable if a plurality of leaf springs are provided.
If the force to close the open / close lid 22 is sufficiently large, the marker can be pushed back by itself, and there is no problem in obtaining a close contact state when not in use, but the double knock mechanism is operated in a stable state. In this case, the marker, the slide rotor 27 and the knob 30 connected to the marker, and the knob 30 should be always subjected to a force directed rearward. From this point, the auxiliary spring 41 is required. If there is no auxiliary spring, play occurs at the position of the marker or the like when not in use, and when the holder is moved, these are displaced inside and become unstable. However, the switching between the use and non-use of the marker intended by the present invention can be achieved without the auxiliary spring 41, and the improvement of the performance of the instrument due to this is a relative effect. It is not a requirement.
[0018]
FIG. 12 is a sectional view showing another knock type mechanism. This mechanism is also a well-known mechanism used for ballpoint pens and the like. The knob 30 is pushed when taking out the pen tip, and the button 60 is pushed when returning. This mechanism may be used instead of the double knock type. The upper figure is when not in use and the lower figure is when in use and corresponds to the upper and lower figures of FIG. 3, respectively, but only the right side is shown. The left side is the same as that of FIG. The part which is not on a cut surface in the figure is represented by a dotted line. In this case, the knob 30 is a hollow cylinder, a part of the side wall of the cylinder is missing, and a U-shaped spring 61 is installed therethrough. At one end, there is a holding claw 62. When the knob is pushed, this claw falls into a claw stopping hole 63 provided on the cylindrical wall surface of the knob to prevent the marker from returning and keep the state in use. it can. When the button 60 is pressed, the presser claw 62 is lowered and is released from the claw stop hole 63 to return to the state shown in the above figure by the restoring force of the main coil spring 26.
[0019]
Next, an example of the opening / closing lid 22 and the partition wall substrate 24 is shown in the sectional view of FIG. The figure on the left is a standard one. The opening / closing lid 22 is flat and rotates around the opening / closing lid rotating shaft 23. Further, a torsion spring 64 is bridged between the opening / closing lid 22 and the partition wall substrate 24. It closes in the absence of external force. If the rotation angle of the opening / closing lid can be used within a small range, a mechanism for controlling the rotation cap 50 of the instrument according to FIG. A packing 65 is interposed at a portion of the partition wall substrate around the pen tip inlet / outlet 25 to come into contact with the opening / closing lid 22 in order to improve the sealing performance at the time of closing. The packing may be mounted on the partition board side, the opening / closing lid side, or both. Depending on the material of both materials and the processing accuracy of the contact surface, it is possible to manufacture a material that has a practically sufficient effect.
The packing material is usually made of natural or synthetic rubber. However, when magnetic rubber is used, the effect is particularly great. In this application, “Claim 1”, “Claim 2” and “Claim 3” In order to improve the sealing performance when not in use, the devices using magnetic rubber for the opening / closing lid 22 of claims 1 and 2 and the rotating cap 50 of claim 3 are patented. It is one of the claims in the claims column. Magnetic rubber or a material covered with soft rubber is used as a packing material. A typical use of magnetic rubber is around the refrigerator door. Thin particles used in the device of the present invention can be molded by controlling the shape freely by mixing magnetic particles into a rubber resin substrate. The use of magnetic rubber makes the force for pressing the opening / closing lid 22 against the partition wall substrate 24 uniform, so that the sealing performance when closed is extremely high. In addition to enhancing the sealing performance, the force required to start opening when the opening / closing lid 22 is pushed open is increased, and after this is relaxed, this also contributes to smooth operation. Of course, when using magnetic rubber, one material is a magnetic material such as an iron plate. Magnetic rubbers that have different polarities and attract each other may be used. Due to processing problems, there is no problem even if magnetic rubber is used for the opening / closing lid 22 or the partition wall substrate 24 as a whole. However, since the opening / closing lid 22 is pushed open while the intermediate push cylinder 40 contacts and slides, it is necessary to consider that the surface of the contacted portion is easy to slide.
The middle figure in FIG. 13 is such that the opening / closing lid 22 is provided with an angle so as to be opened and closed from an oblique position, and can be operated at a small rotation angle. In the right figure, the opening / closing lid 22 is formed in a hemispherical shape, and the positions of the pen tip 11 and the intermediate pushing cylinder 40 when not in use can be placed further forward, and the translation distance of the marker can be shortened. Further, in order to open and close the open / close lid, it is not always necessary to form a bearing for rotation and bridge the torsion spring. Some plastic materials such as polypropylene and polyethylene do not break even when they are repeatedly bent, and have a certain restoring force. Therefore, if such a material is used, it can be manufactured at low cost. On the other hand, in these examples, all of the opening / closing lids are singular, but they may be in the form of so-called double doors constituting two doors. However, in this case, a contact surface is formed between the doors when the doors are closed, but there is a possibility that the sealing performance of this portion is somewhat inferior.
In the case of the instrument according to FIG. 6 as well, the structure around the opening / closing lid is similar to that of the instrument of FIG. If an appropriate back surface protrusion is added to the structure of each figure of FIG. 13, it can utilize also for the instrument based on FIG. The structure shown on the right side of FIG. 13 is applicable to the device shown in FIG. 6 although the device shown in FIG. 4 may be caught in the middle pusher tube during the rotation of the opening / closing lid depending on the degree of the depression. There is an advantage that the nib of a large marker can be enlarged.
[0020]
The first important point for determining the airtightness of the marker 1 when not in use is the contact surface between the aforementioned opening / closing lid 22 and the partition wall substrate 24. As another place where the inside of the holder and the outside air may be communicated with, 3 and FIG. 4 separates the holder front part 31 and the holder rear part 32 when attaching or detaching the slide surface between the knob 30 and the outer container of the holder 2 that enables the mechanism. There is a holder joint 33 as the joint. As one of these measures, if the dimensions of the holder are appropriate, the processing accuracy of the inner wall is high, and the marker barrel 14 is in close contact with the inner wall of the holder, the problem can be solved simultaneously by suppressing the gas flow through this interval. be able to. However, since the marker slides against the holder, it cannot be fixed. Therefore, in order to further improve the airtightness, the above-mentioned two places are individually treated. First, there are many means for improving the airtightness such as the screw-in type for the holder joint 33, and there is no problem at all. The treatment of the knob 30 increases the size and processing accuracy so that the sliding contact surface of the corresponding holder with the outer container is made tight so that there is no gap. In addition to this, the diameter of the front end of the knob is slightly increased to allow for a contact surface between the outer container of the holder and the knob when the knob is in a non-use position. Airtightness will be almost perfect if a proper packing is provided.
[0021]
As an example of dimensions, when considering a marker having a length of the pen tip 11 of 5 mm, an outer diameter of the pen tip support shaft 12 of 7 mm, and an outer diameter of the marker barrel 14 of 18 mm, the holder side corresponds to the intermediate push tube 40 made of metal. It is possible to take a thin disc made of a pen, and the diameter of the pen inlet / outlet 25 is 8 mm and the opening / closing lid 22 is a disc having a diameter of 10 mm. At this time, in order for the pen tip to go out of the holder tip 21 at the time of use, the distance from the holder tip to the partition substrate 24 is 10 mm, which is the same as the diameter of the opening / closing lid, the thickness of the substrate is 1 mm, The distance to the pen tip during use is 1 mm, and the marker movement distance is 17 mm. The length of the pen tip support shaft 12 enabling this is 12 mm, the length of the intermediate constriction 13 is 10 mm, the natural length of the main coil spring is about 20 mm, and the outer diameter of the holder is 20 mm with a wall thickness of 1 mm. Markers of such dimensions give a somewhat neck-like feel and are not necessarily standard products, but fall within the range of what is commercially available. The writing performance as a marker is not hindered. It is also possible to make a marker with a unique dimensional standard according to the holder. Furthermore, if the holder as a product is established, it is not always necessary to use the marker stored in it as an independent writing instrument, and it is possible to commercialize a fountain pen cartridge or ballpoint pen replacement. . The holder has no problem in practical use with the above dimensions. It is also possible to prepare a coil spring corresponding to the above dimensions. In FIG. 4, one end of the main coil spring 26 is a boundary between the intermediate constriction 13 and the marker body 14, but if the holder diameter is slightly increased, one end of the main coil spring can be further rearward of the marker body. The conditions for the length of the main coil spring and the intermediate constriction are greatly relaxed.
[0022]
Next, the instrument shown in FIG. 6 according to “Claim 2” will be described. In this instrument, the rotation angle of the opening / closing lid 22 is larger than that of the instrument of FIGS. 3 and 4, and therefore the shape of the holder tip 21 needs to be considered a little so as not to interfere with this movement. The shape of the end opening in FIG. 6 is slightly different from that in FIGS. FIG. 14 shows two examples of the whole holder corresponding to FIG. 3 and 4, the entire appearance of the holder is a simple rotating body. However, in the apparatus according to FIG. 6, the shape of the tip of the holder is not a circle, and the entire holder or the right view as shown in the left figure of FIG. As shown in the figure, only the periphery of the tip is separated from the rotating body. In either case, it is possible to keep it to the extent that it does not interfere with the writing operation. If the outer diameter of the holder is increased and the space between the holder front end 21 and the partition substrate 24 is increased, the design can be made with the rotating body as in the case of FIGS. In addition, when the back projection 42 is an elongated plate as shown in FIG. 7, it is made of an elastic material such as a metal plate, and the back projection 42 is elastically deformed after the opening / closing lid 22 rotates about the lower figure of FIG. It is possible to design a rotating body even in a configuration in which a path through which the pen tip 11 and the pen tip support shaft 12 pass is made.
The other parts of the holder and the size and shape of the marker to be stored are the same as those of the instrument shown in FIG.
[0023]
The instrument of FIG. 6 is characterized in that a back projection 42 on the back of the opening / closing lid 22 is provided on the holder side, and a side projection 43 is provided on the marker side at a position close to the pen tip of the pen tip support shaft 12. However, the markers that are commercially available at the time of this application do not have this side projection. In the future, a marker assumed to be attached to the holder according to claim 2 may be manufactured as a product having the side protrusions. Does not work. Therefore, for a normal marker as shown in FIGS. 1 and 2 which is not provided, an auxiliary cylinder 66 with a protrusion as shown in a sketch in FIG. 15 is prepared and used by being fitted into the pen tip support shaft 12 of the marker. The instrument of FIG. 15 is a hollow cylinder having an inner diameter corresponding to the pen tip support shaft 12, and is provided with side protrusions 43 on the side surface. By attaching this to a normal marker, the outer shape of the marker is as shown in FIG. Can be shaped.
Another method applied to a normal marker having no side protrusion 43 is shown in the cross-sectional view of FIG. The auxiliary cylinder 66 with protrusions in FIG. 15 is slightly deformed and expanded so that the diameter on the side without the side protrusions 43 is expanded to the inner diameter of the holder. The marker holding cylinder 67 is formed as a part of the structure. The marker is attached to the holder by attaching it to the marker holding cylinder 67. This makes it possible to create the same situation as in FIG. 6 and make the holder function. The configuration shown in FIG. 16 is an instrument that applies the method of FIG. 4 to a marker that does not directly match the shape by removing the side protrusion 43 from the marker holding cylinder 67 and adding an intermediate pushing cylinder 40 instead. Can also be used. If the pen tip support shaft 12 and the marker body 14 are not clearly distinguished from each other and are not so long as the sign pen, it is not so long. This can be applied by attaching it to the marker holding cylinder 67.
[0024]
In order for the device of FIG. 6 to work, when the marker is pushed forward from the non-use state to the use state, this contact must always be maintained after the back surface protrusion 42 and the side protrusion 43 start to contact each other. I must. The side projection 43 pushes the back projection 42 and transmits this force to the opening / closing lid 22 to push the lid open. FIG. 17 describes an example of this process in detail by sequentially showing a series of diagrams showing the mutual contact state of the two protrusions from the top. FIG. 17 is a diagram in which a part thereof is projected from the same viewing direction as FIG. 6. In the figure, the pen tip of the marker is represented by a dotted line, and the back surface projection 42 and the side projection 43 are represented by a solid line without applying parallel diagonal lines. FIG. 18 shows an external view of the opening / closing lid 22 with the back surface protrusion 42 at this time. 18 is the same as FIG.
In the back projection 42, the shape of the projection contact surface 70 that contacts the side projection 43 greatly determines the nature of the action. FIG. 17 illustrates the case where the shape of the contact surface is a straight line in the viewing direction in the lower left diagram of FIG. 18 in order to simplify the understanding of the mode of action. In some cases, the action may be made like a circular arc having a diameter slightly smaller than the diameter and centering on the middle of the opening / closing lid 22. As for the side protrusion 43, a shape including a side protrusion head 71 represented by an arc and a straight side protrusion side 72 is illustrated. This is also expressed in large scale by understanding the mode of action. The side protrusion side portion 72 is used when the pen tip needs to be pushed forward further after the opening / closing lid 22 is sufficiently pushed open, and the pen tip is already required for writing when the opening / closing lid is sufficiently opened. If it is exposed to the outside, it is not necessary. At this time, the shape of the entire side projection may be a simple circle. .
In order to consider the conditions under which the action occurs, taking the case where the radius of the arc of the side protrusion head 71 is represented by a point as an infinitesimal point as a case where it is somewhat apart from the shape of FIG. If the curve representing the shape of the protrusion contact surface 70 is C, including the case where P is a straight line, the force is transmitted at the point of contact between the point P and the curve C. If the friction force is ignored for the sake of simplicity with the center of the opening / closing lid rotating shaft 23 as the point O, the force is transmitted in the normal direction of the curve C at the contact point, so that the normal line is a part of the opening / closing lid 22 or this. If the extension in the direction opposite to the point O is crossed, a moment for rotating the opening / closing lid 22 around the point O exists, and the opening / closing lid 22 is pushed open as the marker advances. Further, during this advancement, a point on the curve C that is at a distance equal to the line segment OP from the point O becomes a point of contact with the point P, so that the point on the curve C matches the position of the corresponding point P in the holder. As the opening / closing lid 22 rotates, the point P moves on the curve C. Corresponding to the range of change in the length of the line segment OP from the start of contact of both protrusions to the time when the open / close lid 22 rotates to the angle required for the passage of the pen tip 11, the curve C is the distance from the point O. If the normal line of the portion in the range is a curve that satisfies the above conditions, the instrument of FIG. 6 operates without the rotation of the opening / closing lid 22 being hindered by the advance of the marker.
As shown in FIG. 17, when the side protrusion head 71 is not a point but the side protrusion 43 has a two-dimensional extension, the state of rotation is somewhat different and generalization is difficult, but the curve at the contact point of both protrusions is difficult. The force is transmitted in the normal direction of C, and the conditions necessary for the normal are the same. In the example of FIG. 17, this condition is satisfied in each aspect related to the advance of the marker. At each position of the marker, the gradient with respect to the length direction of the instrument at each point on the curve C varies depending on the rotation angle of the opening / closing lid 22, but the curve C and the curve on the side projection side are different from the point O. If there is a point with the same distance and the same gradient, this becomes a contact point, and the opening / closing lid 22 rotates correspondingly. As the shape of the side protrusion head 71, if it is an arc having a relatively small diameter so that various gradients can be obtained, it is possible to cope with most shapes of the curve C, and it is easy to manufacture. Depending on the combination of the shape and size of the protrusion contact surface 70 and the side protrusion 43 of the back surface protrusion 42, the allowable pen tip size, the rotation angle of the opening / closing lid, the force required to push the marker, etc. It is determined. For example, a curve used for a gear to efficiently transmit force may be considered. The shape and size of the protrusions are determined depending on which matter is given priority, but the combination of size and shape that enables the operation of the device of FIG. 6 as well as the example shown in FIG. 17 is certain. Exists.
[0025]
FIG. 19 shows a cross-sectional view of another example of the same function as the instrument of FIG. 6, leaving the front half part including the part corresponding to the holder front part 31 of FIG. The simplification is aimed at by removing. The marker body 14 is drawn slightly longer than that of FIG. 2, but the pen tip is pushed out with the marker bottom end 73 instead of the knob 30. The upper diagram of FIG. 19 represents the non-use state, and the lower diagram represents the use state. Since there is no double knock mechanism in FIG. 6, a stop claw 74 is prepared and used over the marker bottom end 73. There are many other methods necessary to maintain the state of use.
[0026]
FIG. 20 shows another example in which the same operation as that of the instrument of FIG. 6 is performed, and a bellows 76 is used for simplification. Bellows are made of cheap plastic such as polypropylene. This bellows occupies most of the equipment corresponding to the holder. Rather than storing the marker in the holder, it feels like attaching a special cap to the marker. One end of the bellows is fixed to the marker side, and the other end is fixed to the partition substrate 24 side having the opening / closing lid 22. A bellows collar or eaves is provided at both ends of the bellows to form a bellows front collar 75 and a bellows rear collar 77, or a hand is placed between them, or a bellows rear collar 77 and a marker bottom end 73 are used to operate the syringe. The bellows are pressed and shrunk by hand to push out the nib 11. The upper figure shows the non-use state, and the lower figure shows the use state after the pen tip is pushed out. In use, the stop claw 74 is maintained over the stop claw receiving hole 78, removed after use, and returned to the state shown above. Since the bellows has a restoring force, it functions in place of the main coil spring 26 of FIG.
[0027]
Finally, the instrument shown in FIGS. 9 and 10 according to claim 3 will be described.
These are simple structures that are simply switched between the non-use state and the use state by attaching and detaching the rotating cap 50, and the shape of the marker that can be used is greatly relaxed and the application range is wide as compared with the instrument of FIGS. The material of the rotating cap is usually rigid so that its shape and size do not change by rotation, but a special one using the bellows described above can also be designed. That is, the rotary cap 50 has a bellows shape that can be compressed in the length direction in the upper diagram of FIG. 9, and is compressed when the rotation is fully used to reduce the occupied volume of the cap and reduce the protruding portion. To improve writing performance.
It is necessary as a requirement to fix the rotating cap 50 in the state of both ends of the rotational movement. In FIG. 9, this is achieved by the cap receiving opening 52 and the cap stop claw 53, and in FIG. 10 by the rotation control spring 55. Although the magnetic rubber can be used in a non-use state, it is the same as the device shown in FIGS. 4 and 6, but the device shown in FIG. 9 can use a magnet for fixing the use state. In FIG. 10, the cap receiving opening 52 is shown in the drawing, but this is not necessary. When not used for a long period of time, it seems to be better to remove the marker from the holder and put a normal inset cap on it, but it is cumbersome and easy to forget. One measure against this is to open the rotating cap while it is attached to the holder, expose the pen tip, and cover the pen tip with the small marker cap 16 type of FIG. Another measure is that the device according to FIG. 10 is also provided with an opening 52 in the cap as shown in this figure, and the rotary cap 50 is pushed in and closed tightly when not in use for a long time, and the rotary cap is used intermittently. Remove from this and use it in a half-open state. In a non-use state for a short period of time, sufficient sealing performance can be maintained by the pressing force of a spring or magnet. The cap receiving opening 52 in FIG. 10 is described in consideration of this, but it is easier to understand from the viewpoint of understanding the action of the rotation control spring 55. If this spring is strengthened and magnetic rubber is used in combination, it will be possible to obtain sufficient airtightness that can withstand long periods of non-use. Since a force can be directly applied to the rotating cap 50 when the rotating cap 50 is opened, even if a slightly strong force is required for the operation, it is sufficiently practical.
[0028]
FIG. 21 shows another example in which both extremes of rotation are fixed using elastic force in the same manner as FIG. The upper figure shows a non-use state, the lower figure shows a use state, the middle figure shows an intermediate state during rotation, and only the periphery of the rotation cap 50 is shown. In this example, a leaf spring 80 attached to the main body side of the holder by a leaf spring fixing plate 81 is used. The leaf spring controller 82 is attached to the shaft center bar 83 while maintaining a state in contact with this, and moves together with the rotation of the rotary cap 50. The leaf spring controller 82 is not a circular shape centered on the rotation center of the rotation cap 50 but constitutes an eccentric curved surface, and functions to change the distance from the rotation center to the leaf spring according to the rotation angle. At the position, the degree of compression of the leaf spring is lowered to increase the stability of the state, and in the intermediate state, the leaf spring is pushed strongly to make it easier to go to either the upper or lower state. As long as this condition is satisfied, a leaf spring may be attached to another position or the shape of the leaf spring controller may be changed to another one. The mode of action is the same as in FIG.
[0029]
FIG. 22 shows another example similar to FIG. This example is mechanically closer to the instrument of FIG. 10 than that of FIG. Instead of the rotation control spring 55 shown in FIG. 10, a folded leaf spring 84 in which the state bent at a right angle or an acute angle is a natural state is used. The two leaf spring ends 85 are made of a material that can be bent freely, and are in the same position as both ends of the rotation control spring 55 of FIG. That is, the distance between them varies depending on the rotation angle of the rotation cap 50. In FIG. 10, the rotation control spring 55 of the coil spring expands and contracts with rotation, whereas in FIG. Both the closed state and the fully opened state of the rotating cap 50 are stabilized by the restoring force to return to the state angle. The mechanism shown in FIG. 22 is a well-known mechanism that is widely used for the lids of plastic containers for cosmetics and daily chemicals, and the folding leaf spring 84 can be made of plastic and inexpensive.
In addition to these, there are many well-known mechanisms that function to shift to either of them when the extreme states of rotation are stable and the degree of rotation is intermediate between them.
[0030]
The holder shown in FIG. 23 is a combination of the features of the mechanisms shown in FIGS. 6 and 9, and the operation is of the rotary type. According to claim 3, the opening / closing lid 22 shown in FIG. A lid operating projection 90 is formed, and an external force is applied to the projection 90. As the projection rotates, the marker translates with respect to the holder, and the back projection 42 and the side projection 43 keep contact with each other as in FIG. The tip 11 moves forward and is exposed, in which case the reverse coil spring 92, which replaces the main coil spring 26 of Fig. 6, is not only placed at the position shown in the figure between the holder and the marker, but its both ends are fixed to each other, The marker is pushed out by the restoring force of the reverse coil spring 92 when it is used and slightly extended from the natural length and when it is not used.
When returning to the non-use state, the marker is pushed back against the reverse coil spring by the back projection 42, and no force is transmitted if the back projection 42 is in contact with the side projection side portion 72 of FIG. Therefore, it is limited to the structure which acts even without this side part. When providing a spring that functions to close the opening / closing lid operating projection 90, this spring must be stronger than the reverse coil spring 92. Not only by rotating the cap, but also by moving the pen tip side forward, each part of the cap is positioned behind the pen tip during use. Although the rotary operation and the high airtightness of FIGS. 9 and 10 are maintained, the protrusion of the holder in use caused by providing the rotation cap 50 can be reduced.
[0031]
FIG. 24 shows an example of the instrument according to “Claim 5”, in which a marker is attached to the holder according to “Claim 1”, “Claim 2”, “Claim 3” or “Claim 4”. In this state, it is integrated into an independent product. If the marker ink runs out, it is discarded, so it is usually disadvantageous in terms of cost, but if the whole can be manufactured at a low cost, it will be established as a product. In particular, in the case of the instrument according to “Claim 3”, there is a possibility that low cost can be achieved, and FIG. 24 shows an example in which the mechanism shown in FIG. 22 is taken up. As described above, this is widely used in plastic containers and the like. Since the container lid is replaced with a rotating cap and the container body is replaced with a marker, inexpensive manufacturing is expected. Since it does not use a marker with a fixed shape that is manufactured separately, it is also possible to design a shape such as denting the corresponding part of the marker body to destroy the protrusion of the rotating cap during use is there.
【The invention's effect】
The holder according to the present invention enables switching between the non-use state and the use state corresponding to the attachment / detachment of the marker cap with one hand, improves the functionality of the marker, and contributes to the improvement of office efficiency.
[Brief description of the drawings]
FIG. 1 is an elevation view and a side view of a marker to which the present invention is a standard application object.
FIG. 2 is a cross-sectional view of the marker shown in FIG.
FIG. 3 is a cross-sectional view showing the action of a holder as a prototype of the instrument according to the present invention.
FIG. 4 is a cross-sectional view showing a mode of operation of an example of a device according to “Claim 1” of the present invention.
FIG. 5 is a sketch of an intermediate push cylinder 40 that is one of the parts of the instrument shown in FIG. 4;
FIG. 6 is a cross-sectional view showing a mode of operation of an example of an instrument according to claim 2 of the present invention.
7 is an external view of the opening / closing lid 22 with a back projection 42 that is one of the parts of the instrument shown in FIG. 6;
8 is an external view of a marker attached to the holder shown in FIG.
FIG. 9 is a cross-sectional view showing a mode of operation of an example of an instrument according to claim 3 of the present invention.
FIG. 10 is a cross-sectional view showing the operation of another example of the instrument according to “Claim 4” of the present invention.
11 is an external view of the instrument shown in FIG.
FIG. 12 is a cross-sectional view showing one embodiment of a knock type mechanism.
13 is a cross-sectional view showing an embodiment of an opening / closing lid 22 that is one of the parts of the instrument shown in FIG. 4. FIG.
14 is a sketch of the appearance of the holder shown in FIG.
15 is a sketch drawing showing an external appearance of an auxiliary part of the holder shown in FIG. 6. FIG.
16 is a cross-sectional view showing one embodiment of the holder shown in FIG. 6. FIG.
17 is a diagram showing details of the mode of operation of the instrument shown in FIG. 6;
18 is an external view of the opening / closing lid 22 with a back projection 42 which is one of the parts shown in FIG.
19 is a cross-sectional view showing one of the embodiments of the instrument shown in FIG.
20 is a cross-sectional view showing one embodiment of the instrument shown in FIG.
21 is a cross-sectional view showing one operation and mode of the embodiment of the instrument of FIG.
22 is a cross-sectional view showing the embodiment of the instrument of FIG. 10 and one mode of operation.
FIG. 23 is a cross-sectional view showing a mode of operation of a holder in which the mechanisms of the instruments of FIGS. 6 and 9 are combined.
FIG. 24 is a cross-sectional view showing one embodiment of a marker according to “claim 5” of the present invention.
[Explanation of symbols]
1 marker, 2 holder, 11 nib,
12 nib support shaft 13 intermediate constriction 14 marker barrel
15 Marker cap large, 16 Marker cap small,
21 Holder front end, 22 Opening / closing lid, 23 Opening / closing lid rotating shaft,
24 Bulkhead base, 25 Pen tip doorway, 26 Main coil spring,
27 slide rotor, 28 grooved stator, 30 knob,
31 Holder front, 32 Holder rear, 33 Holder joint,
40 middle push cylinder, 41 auxiliary spring, 42 back projection,
43 side protrusions, 44 doorway insertion part, 45 position control part,
50 rotating cap, 51 cap rotating shaft, 52 cap receiving port,
53 cap stop claw, 54 cap upper end, 55 rotation control spring,
60 potts, 61 U-shaped springs, 62 retaining claws,
63 nail hole, 64 torsion spring, 65 packing,
66 auxiliary cylinder with protrusion, 67 marker holding cylinder, 70 protrusion contact surface,
71 side protrusion head, 72 side protrusion side, 73 marker bottom end,
74 claw, 75 collar in front of bellows, 76 bellows,
77 Back of bellows, 78 Claw receiving hole, 80 Control leaf spring,
81 leaf spring fixing plate, 82 leaf spring controller, 83 shaft center rod,
84 Folded leaf spring, 85 Folded leaf spring end, 90 Opening / closing lid operation protrusion,
91 Operation protrusion stop claw, 92 Reverse coil spring,

Claims (5)

The marker has a slender outer shape that can be used as a writing instrument to be handled by hand as a whole when stored, and the pen tip of the marker can be placed in a sealed space when not in use, and surrounds the space A part of the pendulum is provided with a pen tip entrance that has an opening and closing lid that tends to close in the absence of external force. It is an instrument related to a holder that can push the pen tip through the pen tip entrance and exit to the outside, and a hollow structure in which a part of the pen tip can be inserted into the pen tip entrance and can be passed through the inside of the pen tip entrance A marker holder characterized in that an intermediate pusher that can be translated in the length direction in the holder is arranged between the marker and the partition wall through a powerful spring between the marker and the marker.   The marker has a slender outer shape that can be used as a writing instrument to be handled by hand as a whole when stored, and the pen tip of the marker can be placed in a sealed space when not in use, and surrounds the space A part of the pendulum is provided with a pen tip entrance that has an opening and closing lid that tends to close in the absence of external force. An instrument related to a holder that can push the pen tip through the pen tip entrance and exit, and a rear surface protrusion that does not hinder the opening and closing of the lid is provided on the back surface of the opening and closing lid, When a marker provided with a side projection that does not interfere with the pen tip passing through the pen tip entrance / exit is housed in the side projection, the side projection and the rear surface projection correspond to the side projection. There This contact can sustain held, have been marker holder, characterized in that push the pen tip to the outside together with the push open the opening and closing lid without contact prevents the closing of the opening and closing lid.   A rotating cap that can be operated with one hand and can be rotated without touching the pen tip of the marker. When not in use, the rotating cap is placed on the pen tip in a sealed state, and in use, all the parts of the rotating cap are located behind the pen tip, and when not in use and in use In an instrument having a structure that can be fixed at both positions, an elastic body that interlocks with the rotation of the rotating cap is provided, and when the rotating cap is closed and in a state of non-use and when the rotating cap is fully opened The tension of the elastic body is relaxed and becomes a stable state, and there is a portion where the tension of the elastic body is maximum at a middle position of the rotation, and the intermediate state of the rotation Marker holder, wherein the restoring force towards one of the states in use during or non-use occurs. A device according to "Claim 1" or "Claim 2" or "Claim 3", wherein "Claim 1" and "Claim 2" are open / close lids, and "Claim 3" are rotation caps. A marker holder characterized in that magnetic rubber is used for the joint surface at each sealed position.   A writing instrument, wherein a marker is attached to a marker holder according to "Claim 1", "Claim 2", "Claim 3", or "Claim 4", and they are integrated as an independent instrument without being separated.

Images