JP6900619B2 - Auto-locking rotary lift pen - Google Patents

Description

The present invention relates to a pen, particularly an auto-locking rotary lift pen.

Currently, the rapid development of science and technology continues to improve the quality of life of humankind, but the improvement of pens and research are stagnant. Now is the smart age, but computers and mobile phones occupy human life. However, as a traditional method of recording civilization, the need for its existence cannot be replaced even today.

The two most important points of a writing instrument are one, the core of the writing instrument, and two, the structural design of the case of the writing instrument. Mankind has been improving and researching the above two points. The existing case design technology is already ripe. However, the operation method is single, there are many operation steps, artificial engineering is now emphasized, and most of the ergonomics of writing instruments are related to the grip feeling when writing with writing instruments, and the basic operation method Improvements have been ignored.

An object of the present invention is to provide an auto-locking rotary lift pen capable of solving a conventional single operation method and a defect that auto-locking is not possible.

In order to achieve the object of the above invention, the present invention adopts the following technical plan.

The auto-locking rotary lift pen according to the present invention includes a first shaft body, a second shaft cylinder, a pen core and a return spring, and the pen core and the return spring are all entangled in the first shaft body to form a first shaft body. And the pen core are sewn into the second shaft tube, the first shaft body consists of a gripping part and a sewn part, and the sewn part is provided with one or more deformed union grooves, and the deformed union groove is The mounting cut groove, the cross groove, and the engaging groove are sequentially arranged, and the extending inner shaft is further provided in the deformed union groove, and the extending inner shaft extends from the mounting cut groove to the inside of the engaging groove. , The extension inner shaft is provided with a mounting protrusion and a deformed convex block, the mounting protrusion is located between the mounting notch groove and the cross groove, the deformed convex block is located in the engaging groove, and the engaging groove is the deformed convex block. It is divided into an engagement switching area, an engagement entry area, an engagement rebound area and a rebound return slope, respectively, and an engagement folding hook is provided in the second axle cylinder so as to be movable in a deformed union groove.
A slope auxiliary path is provided on the surface of the deformed convex block, and an engaging concave groove is further provided on the engagement switching area side, and the positional relationship of the engaging folding hook in the deformed union groove determines two types of engaging states. And the engaged state is
A) Usage condition In this state, the engaging folding hook is located in the deformed convex block and in the engaging concave groove.
In this case, the pen tip of the pen core is in a state where a part is exposed from the first shaft body.
Or a) Carrying state In this state, the engaging folding hook is located in the cross groove, and in this case, the pen core is completely hidden in the first shaft body and the second shaft cylinder.

Preferably, the first shaft body, the second shaft cylinder, the pen core and the return spring are included, the pen core and the return spring are all in contact with the inside of the first shaft body, and the first shaft body and the pen core are inside the second shaft cylinder. The second axle is composed of a multi-blade component and a shaft tube, and two or more multi-blade extension shafts are extended to the multi-blade component, and the multi-blade component and the axle tube engage with each other. Connected, the axle tube is rotatable relative to the multi-blade component, the first axle consists of a grip and a knuckle, and the grip is provided with the same number of multi-blade grooves as the multi-blade extension shaft. , The multi-blade extension shaft is slidably mounted in the multi-blade groove, and one or more deformed union grooves are provided in the joint.
The deformed union groove is formed by sequentially arranging the mounting cut groove, the cross groove and the engaging groove, and further, the extending inner shaft is provided in the deformed union groove, and the extending inner shaft extends from the mounting notch groove to the engaging groove. It is stretched, and a mounting protrusion and a deformed convex block are provided on the stretched inner shaft, the mounting protrusion is located between the mounting notch groove and the cross groove, and the deformed convex block is located in the engaging groove, and the engaging groove. Is divided into an engagement switching area, an engagement entry area, an engagement rebound area, and a rebound return slope by a deformed convex block, and an engagement folding hook is provided in the second shaft cylinder so as to be movable in a deformed union groove. A slope auxiliary path is provided on the surface of the deformed convex block, and an engagement concave groove is further provided on the engagement switching area side thereof.
The positional relationship of the engagement folding hook in the deformed union groove determines two engagement states, and the engagement state is
A) Usage condition In this state, the engaging folding hook is located in the deformed convex block and in the engaging concave groove.
In this case, the pen tip of the pen core is in a state where a part is exposed from the first shaft body.
Or a) Carrying state In this state, the engaging folding hook is located in the cross groove, and in this case, the pen core is completely hidden in the first shaft body and the second shaft cylinder.

Preferably, an auto-lock groove is further provided on both sides of the cross groove, and an auxiliary advance slope and an auto-lock auxiliary slope are further provided between the auto-lock groove and the cross groove, respectively.
An additional retaining protrusion is provided between the auto-lock groove and the auxiliary advance slope and the auto-lock auxiliary slope, and the engagement folding hook goes beyond the auxiliary advance slope and the auto-lock auxiliary slope.
The resistance of the retaining protrusion can be overcome to allow the auto-lock groove to enter and exit, thereby allowing the third
Engagement state, auto lock state, engagement folding hook is located in the auto lock groove, the pen core is completely hidden in the first shaft body and the second shaft body, and the first shaft body And the vertical movement relationship of the second axle cylinder are locked, and the vertical movement of the first axle body and the second axle cylinder becomes impossible.

Preferably, the locus of movement of the engaging folding hook in the deformed union groove is
a. From the mounting notch groove, cross the mounting protrusion and enter the cross groove,
b. Enter the engagement groove from the cross groove and enter
c. In the engagement groove, contact with the deformed convex block in the engagement entry area, shift the deformed convex block to the axial center on the slope auxiliary path, deform the extension inner shaft, and then move to the engagement switching area. After entering and entering the engagement switching area, the deformation of the extension inner shaft is restored and the configuration of the deformed convex block is restored, whereby the engagement folding hook is fixed in the engagement recess.
d. Next, by rotating the second axle, the engagement folding hook is moved to the left or right, disengages from the engagement recess, and enters the engagement rebound area.
e. After entering the engagement rebound area, the elasticity of the return spring automatically moves the engagement wrap hook to the rebound slope.
f. On the other hand, the engagement folding hook is disengaged from the range of the engagement groove by the guidance of the recoil return slope, and enters the cross groove again.
g. If you do not want to replace the pen core, repeat steps b through f.
h. When replacing the pen core, after process f, it moves from the cross groove to the mounting notch groove across the mounting projection and away from the deformed union groove.

Preferably, the locus of movement of the engaging folding hook in the deformed union groove is
a. From the mounting notch groove, cross the mounting protrusion and enter the cross groove,
b. Enter the engagement groove from the cross groove and enter
c. In the engagement groove, contact with the deformed convex block in the engagement entry area, shift the deformed convex block to the axial center on the slope auxiliary path, deform the extension inner shaft, and then move to the engagement switching area. After entering and entering the engagement switching area, the deformation of the extension inner shaft is restored and the configuration of the deformed convex block is restored, whereby the engagement folding hook is fixed in the engagement recess.
d. Next, by rotating the second axle, the engagement folding hook is moved to the left or right, disengaged from the engagement recess, and enters the engagement rebound area.
e. After entering the engagement rebound area, the elasticity of the return spring automatically moves the engagement folding hook to the reversion slope.
f. On the other hand, the engagement folding hook is disengaged from the range of the engagement groove by the guidance of the recoil return slope, and enters the cross groove again.
g. If you do not want to replace the pen core, repeat steps b through f.
h. When replacing the pen core, after process f, move over the mounting protrusion from the cross groove to the mounting notch groove, and then away from the deformed union groove.
i. When performing auto-locking, after process f, by rotating the second axle cylinder, the engaging folding hook moves to the left or right, overcoming the resistance of the retaining protrusion, and auto-locking groove. Enter and
j. To release the auto-lock state, after i, rotate the second axle cylinder to release it.
The engaging folding hook moves to the left or right, overcomes the resistance of the retaining protrusion, and then re-enters the cross groove.

Preferably, leading-out auxiliary slopes are provided on both sides of the engaging recess and act to separate the engaging folding hooks outward from the opening from the engaging recesses on both sides of the engaging recess.

Preferably, a guide entry slope is further provided at the end of the deformed convex block on the engagement entry area side, the opening of the guide entry slope is outward, and the engagement return hook is moved from the engagement entry area to the slope auxiliary road. It acts to make it enter.

Preferably, a gap is provided between the stretched inner shaft and the cross groove and the engaging groove so that they do not come into contact with each other.
The deformed convex block also does not come into contact with the engaging groove, and a gap is provided between both walls of the extension inner shaft and the mounting cut groove, so that the bottom wall of the extension inner shaft and the mounting cut groove are in contact with each other. Therefore, the mounting protrusion does not contact the cross groove and the mounting notch groove, the bottom wall of the stretched inner shaft is in contact with the mounting notch groove, and the mounting protrusion is attached to the bottom wall of the stretched inner shaft from the deformed convex block. Since it is close, if it is the same external force, the deformation width due to the external force received by it is
The force required for the engaging folding hook to cross the mounting projection, which is smaller than the deformation width of the stretched inner shaft due to the external force pressure received by the deformed convex block, is required for the engaging folding hook to cross the deformed convex block. Greater than power.

Preferably, the engaging folding hook has a folding hook-like structure that curves inward so that it can be engaged with the engaging recess, and the engaging recess can be engaged laterally while entering the engaging recess from the lateral direction. It can be prevented from being detached from the groove and does not affect slipping out of the engaging recess beyond the left and right sides of the engaging recess.

Preferably, a gripping sleeve is sewn into the gripping portion of the first axle, a webbing sleeve is sewn into the second axle, and both the gripping sleeve and the webbing sleeve are soft rubber sleeves. ..

The present invention has the following advantageous effects as compared with the prior art.
1) With a simple hand gesture operation, you can move the pen core in and out while writing.
2) It has an auto-lock configuration, and when not in use, auto-lock can be achieved by rotating it to the left or right with a certain width.
3) Equipped with a multi-wing configuration, it makes the appearance of the pen more beautiful and improves the grip. Due to design reasons, there is a gap between the 1st axle and the 2nd axle, and the gap is the largest, especially when not in use.
On the other hand, if a multi-blade configuration is adopted, this vacant part can be completely shielded.

It is a perspective view of Example 1 of this invention. It is a front view of Example 1 of this invention. It is sectional drawing of AA of FIG. 2 of this invention. It is a perspective view of FIG. 3 of this invention. It is an exploded view of Example 1 of this invention. It is a perspective view of the 1st axis body which concerns on Example 1 of this invention. It is a partially enlarged view at the B location of FIG. 6 of the present invention. It is a perspective view of Example 2 of this invention. It is a front view of Example 2 of this invention. FIG. 9 is a cross-sectional view taken along the line CC of FIG. 9 of the present invention. It is a perspective view of FIG. 10 of this invention. It is a partial enlarged view at the E location of FIG. 11 of the present invention. It is an exploded view of Example 2 of this invention. It is a perspective view of the 1st axis body in Example 2 of this invention. It is a partially enlarged view at the D portion of FIG. 14 of the present invention.

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

<Example 1>
The auto-locking rotary lift pen shown in FIG. 1-7 includes a first shaft body 1, a second shaft cylinder 2, a pen core 3 and a return spring 4, and the pen core 3 and the return spring 4 are all the first shafts. The first shaft body 1 and the pen core 3 are sewn into the body 1, and the first shaft body 1 and the pen core 3 are sewn into the second shaft cylinder 2. The first shaft body 1 is composed of a grip portion 11 and a clasp portion 12. The joint portion 12 is provided with one or more deformed union grooves 13. The deformed union groove 13 is formed by sequentially arranging a mounting notch groove 131, a cross groove 132, and an engaging groove 133. An extension inner shaft 14 is further provided in the deformed union groove 13. The extension inner shaft 14 extends from the mounting notch groove 131 to the inside of the engagement groove 133. The extension inner shaft 14 is provided with a mounting protrusion 141 and a deformed convex block 142. Specifically, the mounting protrusion 141 is located between the mounting notch groove 131 and the cross groove 132, and the deformed convex block 142 is located in the engaging groove 133. The engagement groove 133 is divided into an engagement switching area 135, an engagement entry area 136, an engagement rebound area 134, and a rebound return slope 137 by a deformed convex block 142, respectively. An engaging folding hook 21 is provided in the second axle cylinder 2 so as to be movable in the deformed union groove 13. Further, a slope auxiliary path 1421 is provided on the surface of the deformed convex block 142, and an engaging concave groove 1422 is further provided on the engagement switching area 135 side thereof. Deformed union groove 13 of the above engaging folding hook 21
The positional relationship within determines two types of engagement states. The specific engagement state is as follows.
A) Usage state In this state, the engaging folding hook 21 is located inside the deformed convex block 142, and specifically, the engaging concave groove 142.
Located within 2. In this case, the pen tip of the pen core is in a state where a part is exposed from the first shaft body 1.
B) Carrying state In this state, the engaging folding hook 21 is located in the cross groove 132. In this case, the pen core is completely hidden in the first shaft body 1 and the second shaft cylinder 2.

In order to achieve the exposure and concealment of the pen core, the movement of the engaging folding hook within the deformed union groove results in two stable resting positions. They realize the engaged state of the first shaft body and the second shaft cylinder when the pen core is exposed and the engaged state when the pen core is concealed, respectively. Further, the switching between the two states becomes a movement locus in the deformed union groove 13 of the engaging folding hook 21. The movement locus of the engagement folding hook 21 in the deformed union groove 13 is specifically as follows.

a. From the mounting notch groove 131, cross the mounting protrusion 141 and enter the cross groove 132.
b. Enter the engagement groove 133 from the cross groove 132.
c. In the engaging groove 133, contact with the deformed convex block 142 in the engaging entry area 136, and shift the deformed convex block 142 to the axial center on the slope auxiliary path 1421 (that is, the extended inner shaft 14). Transform), then enter the engagement switching area. After entering the engagement switching area, the deformation of the extension inner shaft 14 is restored (that is, the configuration of the deformed convex block 142 is restored). Thereby engaging wrap hook 21
Is fixed in the engaging recess 1422.
d. Incidentally, the engagement folding hook 21 may be moved to the left or right by rotating the second axle cylinder 2, disengages from the engagement recess 1422, and enters the engagement rebound area 134. ..
e. After entering the engagement rebound area 134, the engagement wrap hook 21 is automatically moved to the rebound return slope 137 by the elasticity of the return spring 4.
f. On the other hand, the engaging return hook 21 is disengaged from the range of the engaging groove 133 by the guidance of the reversing return slope 137, and reenters the cross groove 132.
g. If you do not want to replace the pen core, repeat steps b through f above.
When replacing the pen core, after the above process f, move from the cross groove 132 to the mounting notch groove 131 over the mounting projection 141 and away from the deformed union groove 13.

Leading-out auxiliary slopes 1423 are provided on both sides of the engaging recessed groove 1422 so that the switching from the used state to the portable state can be performed quickly and labor-savingly. The engaging folding hook 21 acts outward from the opening so as to separate the engaging concave groove 1422 from the engaging concave groove 1422 on both sides of the engaging concave groove 1422.

When the engagement folding hook 21 has just entered the engagement groove, entering a part other than the engagement entry area affects the completion of the operation of c above, and further affects the switching to the used state. In order to avoid this, a guide entry slope 1424 is further provided at the end of the deformed convex block 142 on the engagement entry area 136 side. The guidance approach slope 1424 has an outward opening, and acts to allow the engagement turn-back hook 21 to enter the slope auxiliary road 1421 from the engagement entry area 136. The guide entry slope 1424 can effectively prevent the deviation of the movement locus of the engagement folding hook.

In order to give good elasticity and deformability to the stretched inner shaft, the deformed convex block and the mounting protrusion are provided with a certain elasticity. This facilitates subsequent engagement with the engagement folding hook. Further, since the mounting protrusion functions only when the pen core is mounted and replaced, the engaging force between the engaging folding hook and the mounting protrusion is made larger than the engaging force between the engaging folding hook and the deformed convex block. by this,
In order to ensure a stable engagement between the engaging folding hook and the deformed convex block, the engaging folding hook does not easily cross the mounting protrusion, and the engaging folding hook suddenly disengages from the deformed union groove. avoid. Since a gap is provided between the drawn inner shaft 14, the cross groove 132, and the engaging groove 133, they do not come into contact with each other, and the deformed convex block 142 also does not come into contact with the engaging groove 133. A gap is also provided between the extension inner shaft 14 and both walls of the mounting cut groove 131, but since the bottom wall of the extension inner shaft 14 and the mounting cut groove 131 are in contact with each other, the mounting projection 141 is also crossed. It does not come into contact with the groove 132 or the mounting notch groove 131. However, the bottom wall of the stretched inner shaft 14 is in contact with the mounting notch groove 131, and the mounting protrusion 141 is closer to the bottom wall of the stretched inner shaft 14 than the deformed convex block 142. Deformation width due to external force
It is smaller than the deformation width of the stretched inner shaft 14 due to the external force compression received by the deformed convex block 142. That is, the force required for the engaging folding hook to cross the mounting projection 141 is greater than the force required for the engaging folding hook to cross the deformed convex block 142.

After the engaging folding hook slides into the engaging concave groove of the deformed convex block, do not return from the open engaging concave groove from the same outward path, but leave the open engaging concave groove only in the lateral movement method. This ensures the stability of the configuration engagement between the first shaft body and the second cylinder body after the engagement folding hook enters the engagement recessed groove. As a result, the writing ability of the user can be easily implemented. The engaging folded hook 21 has an inwardly curved folded hook-like structure so that it can be easily engaged with the engaging concave groove 1422 and can enter the engaging concave groove 1422 from the lateral direction extremely easily. However, it can be prevented from being disengaged from the engaging recessed groove 1422 in the lateral direction. However, it is an engaging recess
It does not prevent it from sliding out of the engaging recess 1422 beyond the left and right sides of 1422.

Preferably, in the present invention, the gripping sleeve may be installed by sewn on the gripping portion 11 of the first shaft body 1, or the webbing sleeve may be installed by sewn on the second shaft cylinder 2. .. Both the gripping sleeve and the webbing sleeve are soft rubber sleeves.

Example 2:
The auto-lock rotary lift pen shown in FIG. 8-15 includes a first shaft body 1, a second shaft cylinder 2, a pen core 3 and a return spring 4, and the pen core 3 and the return spring 4 are all first shaft bodies. The first shaft body 1 and the pen core 3 are sewn into the second shaft cylinder 2. The second axle cylinder 2 is composed of a multi-blade component 22 and an axle cylinder 21.
Two or more multi-blade extension shafts 221 are extended to the multi-blade component 22. The above multi-wing part 22
And the shaft cylinder 21 are engaged and connected. The barrel 21 is rotatable with respect to the multi-blade component 22. The first shaft body 1 is composed of a grip portion 11 and a clasp portion 12. The grip portion 11 is provided with the same number of multi-blade grooves 111 as the multi-blade extension shaft 221. The multi-blade extension shaft 221 is slidably mounted in the multi-blade groove 111. The joint portion 12 is provided with one or more deformed union grooves 13. The deformed union groove 13 is formed by sequentially arranging a mounting notch groove 131, a cross groove 132, and an engaging groove 133. Further, the extension inner shaft 14 is provided in the deformed union groove 13. The extension inner shaft 14 extends from the mounting notch groove 131 to the inside of the engagement groove 133. The extension inner shaft 14 is provided with a mounting protrusion 141 and a deformed convex block 142. Specifically, the mounting protrusion 141 is located between the mounting notch groove 131 and the cross groove 132, and the deformed convex block 142 is an engaging groove.
Located within 133. The engagement groove 133 is formed by the irregular convex block 142, and the engagement switching area 1 is provided.
It is divided into 35, the engagement entry area 136, the engagement retreat area 134, and the retreat return slope 137.
An engaging folding hook 21 is provided in the second axle cylinder 2 so as to be movable in the deformed union groove 13. Further, a slope auxiliary road 1421 is provided on the surface of the deformed convex block 142, and the engagement switching area 1 thereof is provided.
An engaging recessed groove 1422 is further provided on the 35 side.

The positional relationship of the engaging folding hook 21 in the deformed union groove 13 determines two engaging states. The specific engagement state is as follows.

A) Usage state In this state, the engaging folding hook 21 is located inside the deformed convex block 142, and specifically, the engaging concave groove 142.
Located within 2. In this case, the pen tip of the pen core is in a state where a part is exposed from the first shaft body 1.
B) Carrying state In this state, the engaging folding hook 21 is located in the cross groove 132. In this case, the pen core is completely hidden in the first shaft body 1 and the second shaft cylinder 2.

In order to realize the function of locking the vertical movement of the first shaft body and the second shaft cylinder so that the pen core is not exposed by an external force when being carried by outside work, etc., the cross groove 132 Auto-lock grooves 1322 are further provided on both sides. An auxiliary advance slope 1323 and an auto-lock auxiliary slope 1321 are further provided between the auto-lock groove 1322 and the cross groove 132, respectively. A retaining protrusion 13221 is further provided between the auto-lock groove 1322 and the auxiliary advance slope 1323 and the auto-lock auxiliary slope 1321. The engaging folding hook 21 can exceed the auxiliary advance slope 1323 and the auto-lock auxiliary slope 1321, overcome the resistance of the retaining protrusion 13221, and the auto-lock groove 1
You can go in and out of 322. Thereby, a third engaged state, that is, an auto-locking state is provided. At this time, the engaging folding hook 21 is located in the auto-lock groove 1322, and the pen core is completely the first.
It is hidden inside the 1-axis body 1 and the 2nd axle cylinder 2. Moreover, the vertical movement relationship between the first axle body 1 and the second axle cylinder 2 is locked, and the first axle body 1 and the second axle cylinder 2 cannot move up and down with each other.

In order to achieve the exposure and concealment of the pen core, the movement of the engaging folding hook in the deformed union groove produces three stable resting positions. They are the engaged state of the first shaft body and the second shaft cylinder when the pen core is exposed, the engaged state when the pen core is concealed, and the first shaft body and the first shaft body while hiding the pen core, respectively. It realizes the engaged state of the 1st axle body and the 2nd axle cylinder when rocking the vertical movement function of the 2-axle cylinder. Further, the switching between the three states becomes the movement locus in the deformed union groove 13 of the engaging folding hook 21. The movement locus of the engagement folding hook 21 in the deformed union groove 13 is specifically as follows.

a. From the mounting notch groove 131, cross the mounting protrusion 141 and enter the cross groove 132.
b. Enter the engagement groove 133 from the cross groove 132.
c. In the engaging groove 133, contact with the deformed convex block 142 in the engaging entry area 136, and shift the deformed convex block 142 to the axial center on the slope auxiliary path 1421 (that is, the extended inner shaft 14). Transform), then enter the engagement switching area. After entering the engagement switching area, the deformation of the extension inner shaft 14 is restored (that is, the configuration of the deformed convex block 142 is restored). Thereby engaging wrap hook 21
Is fixed in the engaging recess 1422.
d. Incidentally, the engagement folding hook 21 may be moved to the left or right by rotating the second axle cylinder 2, disengages from the engagement recess 1422, and enters the engagement rebound area 134. ..
e. After entering the engagement rebound area 134, the engagement wrap hook 21 is automatically moved to the rebound return slope 137 by the elasticity of the return spring 4.
f. On the other hand, the engaging return hook 21 is disengaged from the range of the engaging groove 133 by the guidance of the reversing return slope 137, and reenters the cross groove 132.
g. If you do not want to replace the pen core, repeat steps b through f above.
h. When replacing the pen core, after the above process f, move from the cross groove 132 to the mounting notch groove 131 over the mounting projection 141 and away from the deformed union groove 13.
i. When performing auto-locking, after the above process f, by rotating the second axle cylinder 2, the engaging folding hook 21 moves to the left or right, overcoming the resistance of the retaining protrusion 13221. Then, enter the auto-lock groove 1322.
b. When releasing the auto-locked state, after i, by rotating the second axle cylinder 2, the engaging folding hook 21 moves to the left or right, overcoming the resistance of the retaining protrusion 13221. After that, enter the cross groove 132 again.

Leading-out auxiliary slopes 1423 are provided on both sides of the engaging recessed groove 1422 so that the switching from the used state to the portable state can be performed quickly and labor-savingly. The engaging folding hook 21 acts outward from the opening so as to separate the engaging concave groove 1422 from the engaging concave groove 1422 on both sides of the engaging concave groove 1422.

Immediately after the engagement folding hook 21 enters the engagement groove, it may affect the completion of the operation of c above by entering a part other than the engagement entry area, and further affect the switching to the used state. In order to avoid this, a guide entry slope 1424 is further provided at the end of the deformed convex block 142 on the engagement entry area 136 side. The guidance approach slope 1424 has an outward opening, and acts to allow the engagement turn-back hook 21 to enter the slope auxiliary road 1421 from the engagement entry area 136. The guide entry slope 1424 can effectively prevent the deviation of the movement locus of the engagement folding hook.

In order to give good elasticity and deformability to the stretched inner shaft, the deformed convex block and the mounting protrusion are provided with a certain elasticity. This facilitates subsequent engagement with the engagement folding hook. Further, since the mounting protrusion functions only when the pen core is mounted and replaced, the engaging force between the engaging folding hook and the mounting protrusion is made larger than the engaging force between the engaging folding hook and the deformed convex block. by this,
In order to ensure a stable engagement between the engaging folding hook and the deformed convex block, the engaging folding hook does not easily cross the mounting protrusion, and the engaging folding hook suddenly disengages from the deformed union groove. avoid. Since a gap is provided between the drawn inner shaft 14, the cross groove 132, and the engaging groove 133, they do not come into contact with each other, and the deformed convex block 142 also does not come into contact with the engaging groove 133. A gap is also provided between the extension inner shaft 14 and both walls of the mounting cut groove 131, but since the bottom wall of the extension inner shaft 14 and the mounting cut groove 131 are in contact with each other, the mounting projection 141 is also crossed. It does not come into contact with the groove 132 or the mounting notch groove 131. However, the bottom wall of the stretched inner shaft 14 is in contact with the mounting notch groove 131, and the mounting protrusion 141 is closer to the bottom wall of the stretched inner shaft 14 than the deformed convex block 142. Deformation width due to external force
It is smaller than the deformation width of the stretched inner shaft 14 due to the external force compression received by the deformed convex block 142. That is, the force required for the engaging folding hook to cross the mounting projection 141 is greater than the force required for the engaging folding hook to cross the deformed convex block 142.

After the engaging folding hook slides into the engaging concave groove of the deformed convex block, do not return from the open engaging concave groove from the same outward path, but leave the open engaging concave groove only in the lateral movement method. This ensures the stability of the configuration engagement between the first shaft body and the second cylinder body after the engagement folding hook enters the engagement recessed groove. As a result, the writing ability of the user can be easily implemented. The engaging folded hook 21 has an inwardly curved folded hook-like structure so that it can be easily engaged with the engaging concave groove 1422 and can enter the engaging concave groove 1422 from the lateral direction extremely easily. However, it can be prevented from being disengaged from the engaging recessed groove 1422 in the lateral direction. However, it is an engaging recess
It does not prevent it from sliding out of the engaging recess 1422 beyond the left and right sides of 1422.

Preferably, in the present invention, the gripping sleeve may be installed by sewn on the gripping portion 11 of the first shaft body 1, or the webbing sleeve may be installed by sewn on the second shaft cylinder 2. .. Both the gripping sleeve and the webbing sleeve are soft rubber sleeves.

Claims (5)

An auto-locking rotary lift pen that includes a first shaft body 1, a second shaft cylinder 2, a pen core 3 and a return spring 4, and the pen core 3 and the return spring 4 are all fitted into the first shaft body 1. The first shaft body 1 and the pen core 3 are entwined in the second shaft cylinder 2, and the first shaft body 1 is composed of a grip portion 11 and a knuckle portion 12, and one or a knuckle portion 12 thereof. The above-mentioned deformed union groove 13 is provided, and the deformed union groove 13 is sequentially composed of a mounting notch groove 131, a cross groove 132, and an engaging groove 133 from top to bottom, and the deformed union groove 13 is formed.
A stretched inner shaft 14 is further provided inside, and the stretched inner shaft 14 is provided from the mounting notch groove 131 to the engaging groove 133.
It is extended to the inside, and the mounting protrusion 141 and the deformed convex block 142 are provided on the stretched inner shaft 14, and the mounting protrusion 141 is located between the mounting notch groove 131 and the cross groove 132, and the deformed convex block 14
2 is located in the engagement groove 133, and the engagement groove 133 is divided into the engagement switching area 135, the engagement entry area 136, and the engagement rebound area 134 by the deformed convex block 142, respectively, and is in the engagement groove 133. A counter-falling return slope 137 is provided in the second shaft cylinder 2, and a deformed union groove 13 is provided in the second shaft cylinder 2.
An engaging folding hook 21 is provided so as to be movable in the above, a slope auxiliary path 1421 is provided on the surface of the deformed convex block 142, and an engaging concave groove 1422 is further provided on the engagement switching area 135 side.
Is provided, and the positional relationship of the engaging folding hook 21 in the deformed union groove 13 determines two types of engaging states.
A) Usage state In this state, the engaging folding hook 21 is located in the deformed convex block 142, and the engaging concave groove 1 is used.
It is located in 422, and in this case, the pen tip of the pen core is in a state where a part is exposed from the first shaft body 1.
Or a) Carrying state In this state, the engaging folding hook 21 is located in the cross groove 132, and in this case, the pen core is completely hidden in the first shaft body 1 and the second shaft cylinder 2. ,
Auto-lock grooves 1322 are further provided on both sides of the cross groove 132, and an auxiliary advance slope 1323 and an auto-lock auxiliary slope 1321 are further provided between the auto-lock groove 1322 and the cross groove 132, respectively, and the auto-lock groove 1322 and the auxiliary advance are provided. An retaining protrusion 13221 is further provided between the slope 1323 and the auto-lock auxiliary slope 1321.
The engaging fold-back hook 21 can cross the auxiliary advancing slope 1323 and the auto-locking auxiliary slope 1321 to overcome the resistance of the retaining protrusion 13221 and enter and exit the auto-locking groove 1322, thereby entering the third engaging state. Then, it becomes an auto-locking state, and the engagement folding hook 2
1 is located in the auto-lock groove 1322, the pen core is completely hidden in the first shaft body 1 and the second shaft cylinder 2, and the vertical movement relationship between the first shaft body 1 and the second shaft cylinder 2 Is locked, and the first axle body 1 and the second axle cylinder 2 cannot move up and down with each other.
The engaging folding hook 21 has a folding hook-like structure that curves inward, so that the engaging recessed groove 1 is formed.
It can be engaged to the 422 so that it cannot be disengaged from the engaging concave groove 1422 in the lateral direction while easily entering the engaging concave groove 1422 from the lateral direction, and both left and right sides of the engaging concave groove 1422 can be engaged. Does not affect slipping out of the engaging recess 1422 beyond
The second shaft cylinder 2 is rotatable with respect to the first shaft body 1, and the second shaft cylinder 2 is rotated with respect to the first shaft body 1.
By doing so, it is possible to switch between the usage state and the carrying state of the auto-lock type rotary lift pen.
Noh,
An auto-locking rotary lift pen that features this. Leading-out auxiliary slopes 1423 are provided on both sides of the engaging recesses 1422, and act to separate the engaging folding hooks 21 outward from the openings of the engaging recesses 1422 from the engaging recesses 1422 on both sides of the engaging recesses 1422. The auto-locking rotary lift pen according to claim 1. Further guidance entry slope 142 at the end of the deformed convex block 142 on the engagement entry area 136 side
4. The second aspect of the present invention is characterized in that the opening of the guide entry slope 1424 is outward, and the engagement turn-back hook 21 acts to enter the slope auxiliary road 1421 from the engagement entry area 136. The described auto-locking rotary lift pen. A gap is provided between the extension inner shaft 14 and the cross groove 132 and the engagement groove 133 so that they do not contact each other, and the deformed convex block 142 does not contact the engagement groove 133, and the extension inner shaft 14 and the mounting notch groove. 131
A gap is provided between the two walls of the above, the bottom wall of the extension inner shaft 14 and the mounting notch groove 131 are in contact with each other, and the mounting protrusion 141 does not contact the cross groove 132 and the mounting notch groove 131. The bottom wall of the stretched inner shaft 14 is in contact with the mounting notch groove 131, and the mounting protrusion 141 is closer to the bottom wall of the stretched inner shaft 14 than the deformed convex block 142. The deformation width due to the external force is smaller than the deformation width of the stretched inner shaft 14 due to the pressure of the external force received by the deformed convex block 142, and the force required for the engagement folding hook to exceed the mounting projection 141 is the engaging folding hook. The auto-locking rotary lift pen according to claim 3, wherein the force is larger than the force required to exceed the deformed convex block 142. A gripping sleeve is tentatively installed on the gripping portion 11 of the first axle body 1, a webbing sleeve is tentatively installed on the second axle cylinder 2, and both the gripping sleeve and the webbing sleeve are soft rubber sleeves. The auto-locking rotary lift pen according to claim 1.

Images