JP5135936B2 - Writing instrument clip - Google Patents

Description

  The present invention relates to a clip used for a writing instrument.

Conventionally, a clip used for a writing instrument is known in various forms.
In the registered utility model No. 3046649, a so-called torsion coil spring is used as a resilient member, a support shaft is used as a means for fixing the clip member to the shaft tube, a through hole of the clip member, a through hole of the shaft tube, The thing fixed by letting a spindle pass to each coil part etc. of a generating member is indicated.
Japanese Patent Application Laid-Open No. 2006-130800 discloses a clip in which a standing wall is provided so as to cover the spring member.

Registered Utility Model No. 3046649 JP 2006-130800 A

However, when a standing wall is provided to cover the bullet member, the biasing portion of the bullet member abuts on the standing wall due to the shape of the bottom surface of the clip, variations in the dimensions of the bullet member, assembly errors, etc. There is a problem that a large lateral force acts on the clip, and the clip is urged to the shaft cylinder in a state of being distorted in the lateral direction with respect to the axial direction of the shaft cylinder.
In particular, the elastic member is formed of a torsion coil spring, and the clip bottom face with which the clip side biasing part abuts is engraved with markings in consideration of the design, and multiple standing walls are formed near the center of the clip bottom face by recesses such as markings. In such a case, the above problem becomes remarkable.

  The present invention has been made in view of the above problems, solves at least a part of the problems, makes the clip member as difficult as possible to act in the lateral direction, and the clip is lateral to the shaft cylinder. An object of the present invention is to provide a clip for a writing instrument capable of causing the clip member to be urged toward the shaft tube by making the axial direction of the shaft tube coincide with the longitudinal direction of the clip member without distortion.

First aspect of the present invention comprises at least the barrel with torsion spring and the clip member, the clip member and the support shaft as a fulcrum connected to the rotatable shaft tube with the spindle, the torsion coil spring A clip for a writing instrument that urges two members, a shaft cylinder or a member fixed to the shaft cylinder, and a clip member, comprising two standing walls protruding from the bottom surface of the clip member toward the shaft cylinder, and the two standing the clip side biasing of the torsion coil spring between the walls arranged, Rutotomoni a clearance, the clip with the side pressing portion is formed between the two sides and two upright walls of the clip side biasing portion The arm portion of the torsion coil spring is bent substantially perpendicularly to the longitudinal direction of the clip for the writing instrument and along the bottom surface of the clip, and the clip member is formed in a window hole formed in the shaft cylinder serving as the writing instrument body. Sinking By locking the locking portion to which the sunken clip member is formed in cursive, and this and the feature of maintaining the cursive tip projecting state.

A second aspect of the present invention is the writing instrument clip according to the first aspect, wherein a plurality of the upstanding walls are provided.

In addition, in this specification, the direction which has a writing body with respect to the longitudinal direction of a writing instrument is described with the front, and the reverse direction is described with back.
Further, for the sake of convenience, the clip side may be referred to as “upper” and the shaft cylinder side as “lower” with respect to the vertical direction in the longitudinal direction, and the clip side and upper and the shaft cylinder side and lower are appropriately selected.
A direction perpendicular to both the up-down direction and the front-rear direction is referred to as a horizontal direction.

According to the first aspect of the present invention, since the gaps are provided at both ends of the two standing walls of the clip member and the clip side urging portion of the torsion coil spring , the clip member is applied to a configuration in which a large force tends to work in the lateral direction. Even in this case, the clip member is not distorted in the lateral direction with respect to the axial tube without reliably applying a large lateral force to the clip member, and the axial direction of the axial tube and the longitudinal direction of the clip member are aligned with each other. Even when applied to a writing instrument that can be urged to the cylinder and maintain the protruding state of the writing body by a clip operation, the clip can function as a clip that can reliably exhibit the writing function of the writing instrument.

According to the invention of claim 2 , even when applied to a configuration in which there is a high possibility that the clip side urging portion of the torsion coil spring abuts against the standing wall, such as when a plurality of standing walls are provided. The clip does not distort in the lateral direction with respect to the shaft tube, and the clip member can be biased to the shaft tube by matching the axial direction of the shaft tube with the longitudinal direction of the clip member.

The present invention is provided with two plate-like standing walls projecting toward the shaft cylinder on the bottom surface of a resilient member and a clip to which the resilient member is urged, and the two standing walls and the urging member on the clip side are biased. There are gaps on both sides of the part.
Also, the shaft tube and the clip member are each formed with a through-hole facing each other, and by inserting a support shaft into the through-hole, the shaft tube and the clip member are respectively locked. The elastic member functions as a clip when biased.

  Examples of the standing wall provided on the bottom surface of the clip include a wall formed by bending both ends of the clip, and a standing wall formed on the side surface when a concave portion is formed by stamping the bottom surface of the clip.

  As a method of locking the clip member, the shaft cylinder, and the resilient member, the above-mentioned three members may be fixed by a support shaft. However, in consideration of the durability and ease of assembly of the clip, the clip member and the shaft are fixed. A connecting member may be interposed between the cylinders.

  Moreover, you may apply the clip in this invention to what performs the protrusion operation | movement of a cursive tip by clip operation. For those that maintain the protruding state of the tip of the writing body by immersing the clip member into the writing instrument body, the axial direction of the axial tube and the longitudinal direction of the clip member are aligned to urge the clip member toward the axial tube. The writing function, which is the first function as a writing instrument, can be secured.

Also, a plurality of standing walls provided on the bottom surface of the clip may be formed.
When a plurality of the members are formed, there is a high possibility that a large force acts on the clip member in the lateral direction, and it is important to form a gap on both sides of the standing wall of the clip member and the clip side urging portion of the resilient member.

  In addition, examples of the elastic member include a coil spring, a leaf spring, and a torsion coil spring. When the torsion coil spring is used, the clip-side biasing portion falls in the recess when the standing wall is provided by the recess. As a result, the biasing portion is likely to come into contact with the standing wall, and there is a high possibility that a large force acts on the clip member in the lateral direction. Therefore, the clip-side biasing portion of the resilient member and the standing wall of the clip member It is important to form a gap in the gap.

  Examples of the method of forming a gap between the clip side biasing portion of the resilient member and the standing wall of the clip member include a method of completely fixing the position of the resilient member, a method of bending the tip of the resilient member, and the like. It is done. In this way, when adjusting the position of the clip side urging portion, if the tip is bent, it can be dealt with by adjusting one part of the elastic member, but if the tip is not bent, the position of the elastic member is determined. It may be necessary to change the shape of the surrounding parts. Therefore, a method of adjusting the position of the clip side urging portion by bending the tip is preferable. In particular, when a torsion coil spring is used, it is easy to bend the arm portion serving as the clip side urging portion and to adjust the position.

  The reason why a lateral force is applied to the clip member is that when the clip is attached to the barrel, the elastic member is bent and set, and the bent elastic member tries to return to the original position. By being biased in the direction. When the standing wall is not formed on the clip bottom surface, that is, the force acting laterally on the clip member (the force generated by the friction force generated by the clip bottom surface and the clip side urging portion) starts to move against the clip fixing force. If it is sufficiently small, there is no problem. Therefore, a problem arises when a standing wall is formed in the axial direction on the bottom surface of the clip. In this case, when the arm portion comes into contact with the standing wall, the force acting in the lateral direction of the clip member is likely to be larger than the force for fixing the clip. In particular, when there are a plurality of standing walls near the center, there is a high possibility that the clip-side biasing portion abuts against the standing wall, so it is more important to provide a gap between both sides of the biasing portion and the standing wall. By providing the gap, even if the elastic member is assembled in a distorted state, the force acting laterally of the clip (the force generated by the frictional force generated by the clip bottom surface and the clip side urging portion) is the clip fixing force. When the force is sufficiently small compared to the force that starts to move, the clip for the gap can return to its original shape, and thus it is possible to prevent a large force in the lateral direction from being applied to the clip member.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, the writing instrument to which the clip for the writing instrument in this example is applied has a shaft cylinder composed of a front shaft 1 and a rear shaft 2, and a clip unit 3 is attached to the rear shaft 2. A front end 4 is provided in front of the front shaft 1 and a knock member 5 is provided behind the rear shaft 2.

First, the clip unit 3 will be described with reference to FIGS. The clip unit 3 includes a clip member 6, a connecting member 7, a resilient member 8, and a support shaft 9.
A ball portion 6a is formed in front of the clip member 6, and the front of the ball portion 6a is defined as a locking portion 6b.
A plate-like raised portion 6c that protrudes in the axial direction is formed opposite to the rear of the intermediate portion of the clip member 6, and a first through hole 6d is formed in the vicinity of the center of the raised portion 6c. A box-shaped connecting member 7 is arranged inside both raised portions 6c, and a resilient member made of a torsion coil spring formed by a wire member having a circular cross-section inside the box-shaped connecting member 7 8 was placed. Further, second through holes 7 a are formed on the side surfaces of the connecting member 7 so as to face each other. By inserting the support shaft 9 into the second through hole 7a, the aforementioned first through hole 6d, and the coil portion inner hole 8a of the resilient member 8, the front of the clip member can be rotated with the support shaft 9 as a rotation axis. Each member was locked. The support shaft 9 is formed with a locking groove 9a, and the inner peripheral portion of the first through hole 6d is fitted into the locking groove 9a.

  From the viewpoint of the function as a clip, the raised portion 6c is preferably formed at the rear of the intermediate portion of the clip member 6, but is formed at the front end portion of the clip member 6, the front of the intermediate portion, the vicinity of the middle portion, or the rear end portion. You may do it. Further, the first through hole 6d is desirably formed near the center of the raised portion 6c from the viewpoint of strength.

  By attaching the clip unit 3 formed as described above to the rear shaft 2, the shaft-cylinder-side urging portion 8b and the clip-side urging portion 8c of the elastic member 8 are repelled in the axial tube direction and the clip direction, respectively. It functions as a clip that always generates elasticity.

Next, the attachment of the clip unit 3 to the rear shaft 2 will be described with reference to FIGS.
In addition, the same code | symbol is attached | subjected to the same part as the above-mentioned thing, and the description is abbreviate | omitted about what was once demonstrated. In addition, the suffix is omitted when there is no particular problem in the description.

At the front end of the connecting member 7, a ring-shaped joining ring 7b extending in the axial tube direction was formed. Further, the rear shaft 2 is formed with two first window holes 2a and two second window holes 2b. The first window hole 2a located rearward is formed long in the longitudinal direction, and a stepped part 2c formed opposite is formed in the vicinity of the middle. The front part is the front part 2d of the window hole, and the middle part with a small area is formed. The window hole middle part 2g and the rear part were used as the window hole rear part 2e.
First, the joining ring 7b is inserted perpendicularly to the rear axis so that the joining ring 7b extends over the window hole front part 2d, the window hole middle part 2g, and the window hole rear part 2e of the window hole 2a.
Thereafter, in order to make the shaft cylinder and the clip parallel, the joining ring 7b of the clip unit 3 is rotated at the window hole front portion 2d. Thereafter, the rear metal core 10 is inserted from the rear end of the rear shaft 2, and the press-fit ring 11 is inserted from the front end of the rear shaft 2. Further, the press-fit portion 10 a of the rear metal core 10 is inserted into the joining ring portion 7 b of the clip unit 3. The press-fitting ring 11 inserted from the rear shaft front end is press-fitted into the press-fitted portion 10a of the rear core that is inserted and protrudes from the opposite side of the joining ring 7b. By this press-fitting, the joining ring 7b of the clip unit is sandwiched between the large-diameter end surface 10b of the rear metal core 10 and the press-fitting ring 11, and the rear metal core 10 is fixed to the ring. Further, the rear metal 12 is inserted from the rear end of the rear shaft, and the male screw 12a of the rear metal and the female screw 10c of the rear metal core are screwed together. By this screwing, the end surface 2f of the stepped portion 2c formed in the window hole 2a and the end surface of the rear shaft rear end are sandwiched between the surface formed on the upper portion of the joining ring 7b of the clip unit and the end surface of the rear metal 12, and the rear shaft 2, the clip unit 3 is fixed.

Next, the arrangement position of the cursive body and the appearance mechanism will be described with reference to FIG.
An eraser receiver 13 is inserted into the back metal 12 from the front of the press-fitting ring 11, and a writing body 14 is disposed in front of the eraser receiver 13. The writing body 14 is composed of a mechanical pencil unit, a refill for a writing instrument, an eraser, and the like, and may have any configuration as long as it has a writing function as a writing instrument, an erasing function as an eraser, and the like. In addition, the cursive body 14 in the present specification includes those in which the outer periphery of the cursive body is covered with a cylindrical portion fixed to the cursive body and members fixed to the cursive body.
Furthermore, it formed so that the ball | bowl part 6a may enter into the 2nd window hole 2b. A locking portion 14a is formed in the vicinity of the intermediate portion of the writing body 14, and the locking member 14a is locked to the locking portion 6b of the ball portion 6a when the writing body 14 protrudes so as to keep the protruding state. The front end of the writing body 14 is immersed by releasing the locking by pressing the rear part of the clip member.

  As shown in FIG. 8, which is a cross-sectional view taken along the line AA of FIG. 7, a pair of plate-like standing walls 6e formed at both ends of the bottom of the clip member 6 and projecting in the axial direction and the clip side of the elastic member are attached. A gap was provided on both sides of the urging portion 8c. By forming in this way, as described above, a large force is not applied to the rear side of the clip in the lateral direction, and the ball portion 6a can be securely moved without being distorted in the lateral direction in a state where the clip is biased to the shaft tube. It can be inserted into the second window hole 2b, and the tip of the cursive body can be kept in a protruding state by the operation of the clip.

  As in this example, in a writing instrument that bears the appearance mechanism of the cursive body by the movement of the clip, the clip becomes an important one that bears the first function of writing `` writing '', and it is required to reliably perform that function. The That is, in this embodiment, it is required that the clip approaches the shaft tube so that the clip can be held in parallel with the shaft tube, and the ball portion 6a enters the window hole 2b with certainty. For this purpose, it is necessary to make the lateral force applied to the rear of the clip as small as possible than the fixing force of the clip. If the lateral force applied to the clip member is large and the ball part 6a does not enter the window hole 2b, the clip is not only distorted laterally in the state of being urged against the shaft tube, but the curled state of the cursive body is maintained. I can't even write. Therefore, the configuration and effect in the present invention play a very important role. At this time, the ball portions 6a formed to face each other so that the ball portions 6a can easily enter the window holes 2b are formed so that the respective ball portions are closer to each other toward the shaft tube 12. preferable.

  9 and 10 show a modification of this example. This example is an example in which a plurality of standing walls 6e are formed. For example, this is an example where a clip is engraved with emphasis on design, and a plurality of standing walls are formed on the bottom surface of the clip. In such a case, a plurality of standing walls are formed by the recessed portions 6f (6fa to 6fc) formed by marking. In this embodiment, by marking two steps on the bottom surface of the clip member having a pair of upstanding walls, the XX cross-sectional shape of the clip member was expanded in a staircase shape on both sides toward the axial tube side. . In other words, three steps of concave portions 6f (6fa to 6fc) that are stepped deeper as they approach the center of the bottom surface of the clip are provided. By forming in this way, there is a high possibility that the clip side urging portion 8c falls into the recess 6f due to a slight dimensional error of the elastic member. When the clip side urging portion 8c falls in the recess 6f, a force that comes into contact with the upright wall 6e and the clip side urging portion returns to the original position, that is, a large lateral force is applied to the clip member 6. Take it. Therefore, forming the gap between the standing wall 6e and the clip side urging portion 8c plays a very important role, and can prevent a large lateral force from being applied to the clip member 6, The clip does not distort in the lateral direction with respect to the shaft cylinder, and the clip member can be biased to the shaft cylinder by matching the axial direction of the shaft cylinder with the longitudinal direction of the clip member.

11 and 12 show a further modification. In this example, a plurality of standing walls 6e are formed, a torsion coil spring is used as an elastic member, and the tip of an arm portion serving as a clip side urging portion is bent. By forming in this way, the gap can be provided more easily than the method of completely fixing the position of the torsion coil spring and the method of bending the arm portion of the torsion coil spring from the base. That is, since the degree of freedom of the clip side urging portion 8c is increased by bending the tip of the arm portion 8d, the clip side urging portion 8c is disposed on the clip bottom surface that can form a gap with the standing wall. At that time, the clip-side urging portion 8c can be locally aimed and arranged. Therefore, as compared with the case where the arm portion 8d is not bent, it is easier to provide a gap with the upright wall 6e more reliably, so that it is possible to prevent a larger lateral force from being applied to the clip member 6. be able to.
Further, in this example, the arm portion 8d is bent so as to be substantially perpendicular to the longitudinal direction of the clip and along the bottom surface of the clip so that the arm portion traverses the standing wall formed between the recesses 6fa.
When the arm section 8d is circular and the arm section 8d is not bent, when the clip-side urging section 8c is arranged from the center of the recesses 6fa and 6fb, the section is cylindrical, so that Are easily slipped into the recesses 6fb and 6fc.
When the arm 8d is bent, the bent bottom surface comes into contact with the bent portion 8e and the clip-side urging portion 8c at one point, and when the clip-side urging portion 8c is at one point, the bent portion A case of 8e is considered. First, when the portions that contact the clip are two points, that is, the bent portion 8e and the clip-side urging portion 8c, the arm portion does not slip into the recessed portion 6fb or 6fc one step below. Next, even when the portion in contact with the clip is one point at the tip of the clip side biasing portion 8c, when the arm portion 8d is bent so as to be substantially perpendicular to the longitudinal direction of the clip and along the bottom surface of the clip, Compared with the case where it is not bent, it is easy to get caught in the concave portion, and it is difficult to fall into the concave portion one step below. Next, even when the portion in contact with the clip is the bent portion 8e, by adjusting the position of the bent portion 8e, the distance from the bent portion 8e to the clip side urging portion 8c is increased, so that the bent portion The two points of 8e and the clip side urging portion 8c can be brought into contact with the clip. Therefore, when the arm portion 8c is bent, the arm portion does not slip into the recess one step lower than when the arm portion 8c is not bent, and it is easy to provide a gap with the standing wall more reliably. A large force does not act on the clip member 6 in the lateral direction, and the clip does not distort in the lateral direction with respect to the shaft tube, and the clip member is urged toward the shaft tube by matching the axial direction of the shaft tube with the longitudinal direction of the clip member. be able to.

The side half sectional view showing an example of the present invention. The exploded perspective view of a clip unit. The side sectional view of the clip unit. The perspective view of the assembly process of a rear axis | shaft and a clip unit. The perspective one side sectional view after an assembly of a rear axis and a clip unit. The side half sectional view showing an example of the present invention. The side view which shows an example of this invention. AA sectional view of FIG. The side view which shows an example of this invention. XX sectional view of FIG. 9 (when the arm is not bent). XX sectional view of FIG. 9 (when the arm is bent). FIG. 10 is a YY sectional view of FIG. 9.

DESCRIPTION OF SYMBOLS 1 Front axis | shaft 2 Rear axis | shaft 2a 1st window hole 2b 2nd window hole 2c Step part 2d Window hole front part 2e Window hole rear part 2f End surface 2g Window hole center part 3 Clip unit 4 Lead metal 5 Knock member 6 Clip member 6a Ball part 6b Locking portion 6c Protruding portion 6d First through hole 6e Standing wall 6f Recess 7 Connecting member 7a Second through hole 7b Joint ring 8 Resilient member 8a Coil portion inner hole 8b Shaft tube side biasing portion 8c Clip side biasing portion 8d Arm Part 8e Bending part 9 Support shaft 9a Locking groove 10 Rear metal core 10a Press-fit part 10b Large diameter end surface 10c Female screw 11 Press-fitting ring 12 Rear metal 12a Male screw 13 Eraser receiver 14 Curtain 14a Locking part

Claims (2)

At least a shaft cylinder, a torsion coil spring, and a clip member are used, and the clip member is pivotally connected to the shaft cylinder using the support shaft as a fulcrum, and the torsion coil spring is fixed to the shaft cylinder or the shaft cylinder. A clip for a writing instrument for urging two members of the clip member and the clip member, the clip member comprising two standing walls projecting from the bottom surface of the clip member toward the shaft tube side, and a torsion coil spring between the two standing walls place a clip side biasing unit, Rutotomoni a gap is provided between the two sides and two upright walls of the clip side biasing portion, the arm portion of the torsion coil spring in which the clip with the side pressing portion is formed The writing tool clip is bent substantially perpendicularly to the longitudinal direction of the clip and along the bottom surface of the clip, and the clip member sinks into a window hole formed in the shaft cylinder serving as the writing tool body. Clip member engages the engagement portion formed in cursive, clip writing instrument according to this and the characteristics for maintaining the cursive tip projecting state. The writing instrument clip according to claim 1, wherein a plurality of the standing walls are provided .

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