JP2021041693A - Rotation automatic lock fall protection pen - Google Patents

Abstract

To provide a rotation automatic lock fall protection pen capable of preventing a pen tip of a pen core from being destroyed even when it falls on the ground in use.SOLUTION: The rotation automatic lock fall protection pen includes a first shaft body 1, a second barrel 2, a pen core 3, a sealing lid 8, and a return spring 4. Both the pen core 3 and the return spring 4 are joined into the first shaft body 1, and the first shaft body 1 and the pen core 3 are joined into one end of the second barrel 2. The sealing lid 8 is mounted in the other end of the second barrel 2. The first shaft body 1 includes a grip portion 11 and a joint portion 12. The grip portion 11 is provided with an extension joint shaft 112, and by engaging the extension joint shaft 112 into a joint fitting groove provided in the joint portion 12, the grip portion 11 and the joint portion 12 are engaged with each other.SELECTED DRAWING: Figure 5

Description

The present invention relates to the field of pens, and particularly to a rotary automatic lock fall protection pen.

There are two points of interest in the pen industry. The first is that it touches the pen core. The second is the configuration design of the case. Improvements and research are continuing on these two points. Conventionally, the configuration design of the case has matured, but the operation method is single and the operation steps are frequent. Now that ergonomics are popular, ergonomic design for writing instruments is also being carried out, but most of them are simply ergonomic improvements in the feeling of grip when writing, and the most fundamental element is the operation method. The reform is ignored.

Regarding the fall protection at the time of dropping, conventionally, it is common to impart the effect of drop protection by causing the end of the pen core to conflict with the spring. However, if the spring force is too small, the pen core sways during writing and cannot be fixed, resulting in vertical floating, which is extremely disadvantageous for writing. If the spring force is excessive, it cannot have a truly effective fall protection effect.

An object of the present invention is to provide a rotary automatic lock drop protection pen for a conventional defect that an automatic lock is not possible due to a single operation method. The pen core can be expanded and contracted quickly and normally, and the pen core can be exposed and contracted quickly. When it falls to the ground in its used state, it triggers the internal fall protection mechanism. At this time, the pen core automatically releases the pressure to make it bounce off. This prevents the real impact force from acting completely on the pen core. Achieve the effect of avoiding the destruction of the pen tip of the pen core. Then, after avoiding the impact force, it can be further automatically restored to the above-mentioned used state. In addition, problems caused by excessive writing ability will be solved.

In order to realize the object of the above invention, the present invention provides the following technical proposals.
In the first aspect, the rotary automatic lock fall protection pen in the present invention includes the first shaft body, the second shaft cylinder, the pen core, the sealing lid, and the return spring, and the pen core and the return spring. Are both sewn into the first shaft body, the first shaft body and the pen core are sewn into one end of the second shaft cylinder, and the sealing lid is inside the other end of the second shaft cylinder. It is attached to.

The first shaft body is configured to include a grip portion and a knuckle portion, and the grip portion is provided with an extension knuckle shaft.
A knuckle fitting groove is provided in the knuckle portion, and the extension knuckle shaft engages with the knuckle fitting groove so that the grip portion and the knuckle portion are engaged with each other. The first shaft body is configured in.

One or more deformed union grooves are provided in the joint portion, and the deformed union groove is formed by sequentially arranging and combining a mounting cut-in groove, a cross groove and a fitting groove. An extension inner shaft is further provided in the deformed union groove, and the extension inner shaft is installed so as to extend from the mounting cut-in groove to the inside of the fitting groove.

The extension inner shaft is provided with a mounting protrusion and a deformed convex block. Specifically, the mounting protrusion is located between the mounting notch groove and the cross groove, and the deformed convex block is located in the fitting groove. The fitting groove is divided into a fitting switching area, a fitting entry area, a fitting rebound area, and a rebounding return slope 7 by the deformed convex block.

A fitting folding hook that can be moved to the deformed union groove is provided in the second shaft cylinder. The deformed convex block is further provided with a slope auxiliary path on the surface thereof, and a fitting concave groove is further provided on the fitting switching area side thereof.

It is configured so that it can be changed between the used state and the carrying state, which are two types of fitting states, depending on the positional relationship of the fitting folding hook in the deformed union groove.
(1) The used state is a state in which the fitting folding hook is located in the deformed convex block and specifically located in the fitting concave groove. In this case, the pen tip of the pen core is one. The portion is exposed from the first shaft body.
(2) The carrying state is a state in which the fitting 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.

Further, in the second embodiment, the rotary automatic lock fall protection pen in the present invention includes the first shaft body, the second shaft cylinder, the pen core, the sealing lid, and the return spring, and returns to the pen core. Both springs are entangled in the first axle, the first axle and the pen core are entwined in one end of the second axle, and the sealing lid is the other end of the second axle. It is installed inside.

The second axle is composed of a multi-blade member and an axle shaft, and two or more extended multi-blade shafts are extended and installed on the multi-blade member, and the multi-blade member and the axle shaft are Engagementally connected, the axle is rotatable with respect to the multi-blade member.

The first shaft body is configured to include a grip portion and a knuckle portion, and the grip portion is provided with an extension knuckle shaft.
A knuckle fitting groove is provided in the knuckle portion, and the extension knuckle shaft engages with the knuckle fitting groove so that the grip portion and the knuckle portion are engaged with each other. The first shaft body is configured in.

The grip portion is provided with a multi-blade groove in the same number as the extended multi-blade shaft, and is slidably attached to the extended multi-blade shaft in the multi-blade groove. One or more deformed union grooves are provided, and the deformed union groove is configured by sequentially arranging and combining a mounting cut-in groove, a cross groove, and a fitting groove.

A stretched inner shaft is further provided in the deformed union groove, the stretched inner shaft is installed so as to extend from the mounting cut-in groove to the inside of the fitting groove, and the stretched inner shaft is provided with a mounting protrusion and a deformed convex block. Specifically, the mounting projection is located between the mounting notch groove and the cross groove, and the deformed convex block is located in the fitting groove. The fitting groove is divided into a fitting switching area, a fitting entry area, a fitting rebound area, and a rebounding return slope 7 by the deformed convex block. A fitting folding hook that can be moved to the deformed union groove is provided in the shaft body, and the deformed convex block is further provided with a slope auxiliary path on the surface thereof and further fitted on the fitting switching area side thereof. A groove is provided.

It is configured so that it can be changed between two types of mating states, a used state and a carrying state, depending on the positional relationship of the mating folded hook in the deformed union groove.
(1) The used state is a state in which the fitting folding hook is located in the deformed convex block and specifically located in the fitting concave groove. In this case, the pen tip of the pen core is one. The part is exposed from the first shaft body;
(2) The carrying state is a state in which the fitting 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.

The present invention preferably further provides automatic lock grooves on both sides of the cross groove, and further provides an auxiliary advance slope and an automatic lock auxiliary slope between the automatic lock groove and the cross groove, respectively, and the automatic lock groove. A retaining protrusion is further provided between the auxiliary advance slope and the automatic lock auxiliary slope.

The mating folding hook is configured so that the automatic lock groove can be advanced after overcoming the resistance force of the retaining protrusion by the auxiliary advance slope and the automatic lock auxiliary slope. It is provided with an automatic lock state which is a mated state of.

In the automatic lock state, the fitting folding hook is located in the automatic lock groove, the pen core is completely hidden in the first shaft body and the second shaft cylinder, and the first shaft body and the first shaft body and the pen core are completely hidden. The vertical movement relationship of the second axle is locked, and the first axle and the second axle cannot move up and down.

In the present invention, preferably, an approach guide slope is further provided on the fitting entry area side of the deformed convex block, the opening of the entry guide slope is outward, and the fitting return hook is attached to the fitting entry area. It is formed to guide the driver to enter the slope auxiliary road.

Leading-out auxiliary slopes are provided on both sides of the fitting recess so that the opening is outward and guides the fitting folding hook away from the fitting recess from both sides of the fitting recess. It is formed.

The fitting folded hook has a folded hook-like structure that is bent inward so as to hang the fitting concave groove, so that the fitting concave groove can be easily entered in the lateral direction and from the fitting concave groove. It is configured so as to be inseparable in the lateral direction and not to prevent slipping out of the fitting recess through the left and right sides of the fitting recess.

The present invention is preferably configured so that the deformed convex block and the fitting groove do not come into contact with each other by providing a gap between the drawn inner shaft and the cross groove and the fitting groove so as not to bring them into contact with each other. To.

While gaps are provided at both ends of the stretched inner shaft and the mounting cut-out groove, the mounting protrusion and the cross groove and the mounting cut-out groove are connected by connecting the bottom end of the stretched inner shaft and the mounting cut-out groove. Is configured so that it does not come into contact with.

As described above, the stretched inner shaft has an equivalent external force because the bottom end thereof is connected to the mounting cut-out groove and the mounting protrusion is located on the bottom end side of the stretched inner shaft with respect to the deformed convex block. The deformation width due to the external force received by the deformed convex block can be made smaller than the deformation width of the stretched inner shaft due to the external force compression received by the deformed convex block, that is, the force required to cross the mounting projection of the fitting folding hook is said to be It is made greater than the force required to cross the deformed convex block of the mating folded hook.

In the present invention, preferably, one or a plurality of support and fixing shafts are extended along an oblique direction at a position closer to the axis of the second shaft tube in the middle of the second shaft cylinder, and the second shaft cylinder is described. The internal space of the above is divided into a use chamber and a stationary chamber with the support and fixing shaft as a boundary.

The adjustment inner shaft has a rod configuration, an adjustment ring base is provided at the tip, and a conflict stand is provided at the other end. The adjustment ring base is further provided with a fixing base at the tip and is mounted in the second shaft cylinder. It is sewn, and its end penetrates the second shaft cylinder and is fitted to the sealing lid by a screw or a buckle means.

The adjustment inner shaft is configured to expand and contract so as to be movable in the second shaft cylinder, and the adjustment ring base is provided with a support guide slope on the terminal side and a damping slope on the tip side. A pen core fixing ring is further provided in the fixing base, the end of the pen core is sewn into the fixing base, and the pen core fixing ring is engaged with the pen core fixing ring, and the return spring is said. It is mounted in a second axle and specifically located between the conflict table and the sealing lid.

The support fixing shaft is further provided with a fixing slope that conflicts with the support guide slope. When the support fixing shaft and the adjustment ring base conflict with each other, the contact base and the base portion of the support fixing shaft are configured to conflict with each other, so that the adjustment ring base stably becomes the support inner cylinder. It is fixed inside.

A stable release area is further provided between the support guide slope and the damping slope, the length of the stable release area is equal to or larger than the contraction distance of the pen core, and the contraction distance of the pen core is , The distance from the used state where the pen tip of the pen core is exposed to when it completely enters the pen shaft.

More preferably, the present invention changes the frictional force between the support guide slope and the fixed slope by having different textures on the surfaces of the support guide slope and the fixed slope, and changes the friction coefficient H thereof. Is possible. Since the surfaces of the support guide slope and the damping slope have different textures, it is possible to change the frictional force between the support guide slope and the damping slope and change the friction coefficient T thereof. The damping slope and the shaft body axis of the adjusting inner shaft form a narrowing angle X, and the support guide slope and the shaft body axis of the adjusting inner shaft form a narrowing angle Y.

More preferably, the present invention further provides a first magnetic component and a second magnetic component between the stretched knuckle shaft and the knuckle fitting groove, and the first magnetic component and the second magnetic component. At least one is made of permanent magnet and the other magnetic component is made of magnetic absorbing material. The first magnetic component is fixed in the knuckle fitting groove by an adhesive or engaging means, and the second magnetic component is fixed to the stretched knuckle shaft by an adhesive or engaging means. The stretched joint shaft and the joint fitting groove are configured to form the first shaft body by combining the first magnetic component and the second magnetic component in place of the engaging means by magnetic coupling of the first magnetic component and the second magnetic component. ..

More preferably, the present invention further provides a magnet and a magnet chamber in the support fixing shaft, and the magnet is fixed in the magnet chamber. When the number of the supporting and fixing shafts is one, the adjusting inner shaft is made of a magnetic absorbing material or a magnet.

In the present invention, more preferably, the resultant force of the frictional force generated between the support fixing shaft and the support guide slope and the elastic force of the return spring in the support inner cylinder with respect to the adjustment inner shaft is written by a person. It is configured so that it is larger than the normal compression force generated in the above and smaller than the impact force generated when the pen is dropped from the desk and the pen tip of the pen core lands.
The deformed tensile force of the support and fixed shaft, the clearance angle Y, the elastic force of the return spring, and the friction coefficient H.
The adjustment inner shaft is configured to be repositioned by the elastic force of the return spring after the impact force is extinguished or reduced.

More preferably, the present invention includes a contact force generated between the support fixing shaft and the support guide slope, an elastic force of the return spring in the support inner cylinder with respect to the adjustment inner shaft, and a magnet in the support fixing shaft. When the magnetic attraction between the magnetic attraction or the resultant force between the support fixed shaft and the adjustment inner shaft is larger than the normal compression force generated in writing by a person, and the pen drops from the desk and the pen tip of the pen core lands. It is configured to be smaller than the impact force generated in the above, and the resultant force is determined by the deformation tensile force of the support fixed shaft, the pinching angle Y, the elastic force of the return spring, and the friction coefficient H. The adjusting inner shaft is configured to be repositioned by the elastic force of the return spring after the impact force is extinguished or reduced.

The present invention preferably includes the following process for the locus of movement of the mating folded hook in the deformed union groove.
1 From the mounting cut-out groove, cross the mounting protrusion and enter the cross groove.
2 Enter the fitting groove from the cross groove.
3 In the fitting groove, the deformed convex block comes into contact with the fitting entry area, and the deformed convex block is displaced to the axis by the slope auxiliary path, that is, the extension inner shaft is deformed, and then the fitting switching area. After entering the fitting switching area, the deformation of the extension inner shaft is restored, that is, the deformed convex block is structurally restored, whereby the fitting folding hook is fixed in the fitting concave groove.
4 After that, by rotating the second axle, the mating folding hook moves to the left or right,
It separates from the mating recess and enters the mating receding area.
5 After entering the mating receding area, the elastic force of the return spring acts on the mating folding hook to automatically move to the mating reversing slope.
6 Guide the range where the fitting folding hook is detached from the fitting groove by the rebounding slope, and re-enter the cross groove.
7 If it is not necessary to replace the pen core, repeat steps 2 to 6 above.
8 If it is necessary to replace the pen core, after the above process 6 is completed, the pen core is moved over the mounting protrusion from the cross groove to the mounting notch groove, and then separated from the deformed union groove.

More preferably, the present invention has the following movement loci of the fitting folded hook in the deformed union groove.
1 From the mounting cut-out groove, cross the mounting protrusion and enter the cross groove.
2 Enter the fitting groove from the cross groove.
3 In the fitting groove, the deformed convex block comes into contact with the fitting entry area, and the deformed convex block is displaced to the axis by the slope auxiliary path, that is, the extension inner shaft is deformed, and then the fitting switching area. After entering the fitting switching area, the deformation of the extension inner shaft is restored, that is, the deformed convex block is structurally restored, whereby the fitting folding hook is fixed in the fitting concave groove.
4 After that, by rotating the second axle, the mating folding hook moves to the left or right,
It separates from the mating recess and enters the mating receding area.
5 After entering the mating receding area, the elastic force of the return spring acts on the mating folding hook to automatically move to the mating reversing slope.
6 Guide the range where the fitting folding hook is detached from the fitting groove by the rebounding slope, and re-enter the cross groove.
7 If it is not necessary to replace the pen core, repeat steps 2 to 6 above.
8 If it is necessary to replace the pen core, after the above process 6 is completed, the pen core is moved over the mounting protrusion from the cross groove to the mounting notch groove, and then separated from the deformed union groove.
9 If automatic locking is structurally required, after the above process 6 is completed, by rotating the second axle, the mating folding hook moves to the left or right, overcoming the resistance of the retaining protrusion. After that, enter the automatic lock groove.
10 When attempting to release the automatic lock state, after the above process 9 was completed, by rotating the second axle cylinder, the mating folding hook moved to the left or right, overcoming the resistance of the retaining protrusion. After that, it enters the cross groove again.

More preferably, the present invention may have a gripping sleeve clasped on the gripping portion of the first axle, a webbing sleeve may be clasped on the second axle, and the gripping sleeve. And the webbing sleeve are both soft rubber sleeves.

A fall protection configuration is formed by the support fixing shaft, the adjusting inner shaft, the return spring, and the sealing lid. When the pen core falls, the impact force received by the pen tip is absorbed by the retaining configuration, and it is possible to prevent the real impact force from acting on the pen tip of the pen core.

Here are more preferred forms of use force set in the fall protection configuration.
When there is no magnet in the fall protection configuration, the optimum range of the force value of the conflict force generated between the support fixed shaft and the support guide slope is as follows.
(Normal writing force + Error prevention force) ≤ (Conflict force generated between the support fixed shaft and the support guide slope +
Adjusting the return spring in the supporting inner cylinder Elastic force with respect to the inner shaft) ≤ (Maximum receiving force of the pen core-allowable error force) <Impact force caused by the pen tip falling when the pen core is dropped from the desk.

When there is a magnet in the drop protection configuration and there is only one support and fixed shaft, the optimum range of the force value is as follows.
(Normal writing force + Error prevention force) ≤ (Conflict force generated between the support fixed shaft and the support guide slope +
Magnetic attraction between the support fixed shaft and the adjustment inner shaft + Elastic force of the return spring in the support inner cylinder with respect to the adjustment inner shaft) ≤ (Maximum receiving force of the pen core-tolerance force) <Pen when the pen core is dropped from the desk Impact force due to the tip falling.

When there is a magnet in the drop protection configuration and there are two or more support and fixed shafts, the optimum range of the force value is as follows.
(Normal writing force + Error prevention force) ≤ (Conflict force generated between the support fixed shaft and the support guide slope +
Magnetic attraction between magnets on the support fixed shaft + Adjustment of the return spring in the support inner cylinder Elastic force on the inner shaft) ≤ (Maximum receiving force of the pen core-tolerance force) <When the pen core is dropped from the desk, the pen tip falls to the ground Impact force due to doing.

The term "normal writing ability" can be personalized according to different types of users, and normal writing ability may be set based on the actual conditions of different people, and is generally normal for all users. The writing ability may be set, and in this case, it is sufficient that normal writing can be ensured for all users.

The term "error prevention force" is used in the actual manufacturing process between the mass requirement of the product and the actual result.
There is a certain distance. We need the power to offset it.

The term "maximum receptive force of the pen core" means that the damaging force is determined during the production of the pen core.
The threshold value of the damaging force is set to a value that is much larger than the normal writing force and close to the fall protection force. Even in this way, complete fall protection cannot be achieved. However, since the threshold value is consistent with the design concept of the present invention, it is considered to be sufficient.

The term "margin of error force" means that if the maximum receptive force of the pen core is used as a reference, the probability of damage to the use of the pen core increases, so it is necessary to reduce the range of this actual threshold value. Is
It is determined to protect the pen core more appropriately.

For further labor saving, the smaller the user's power is, the more desirable it is, and the closer the actual power is to normal writing + error prevention power, the better the usage effect and the maximum protection power of the pen core.

The analysis of the receiving state has the following four stages.
1 Standing stage If there is no external force interference, keep the pen tip of the pen core exposed from the pen shaft.

2 Impact stage When the pen core receives an impact force larger than the normal writing force, the support guide slope and the fixed slope are separated. At this time, the support fixed shaft enters the stable release area and quickly passes through the stable release area. In this way, the pen tip of the pen core enters the pen shaft, and the impact tip of the real impact force is changed from the pen tip of the pen core to the pen shaft. As a result, the pen of the pen core is simply subjected to the impact force of the part that has just begun and does not exceed the maximum acceptable threshold. The real impact force that can destroy the pen tip structure of the pen core is received by the pen shaft.

3 Pressure release stage The impact force that has just fallen quickly upsets the balance between the support fixed shaft and the adjustment ring. After that, the aftermath continues to press the return spring. The return spring, which is further compressed in this way, absorbs the kinetic energy of the impact force of this portion and stores the energy. After the impact force has diminished, bounce occurs. This should have a negative effect on the pen core. The surrounding environment after dropping is various, and there is a risk that the pen tip of the exposed pen core will hit something else. If it hits something else, it will do secondary damage to the pen tip. In addition, the vibration generated by the impact may give a constant impact to the ink in the pen core. Frequent impacts have a disadvantageous effect. Therefore, it is necessary to release the impact force due to the aftermath of this part. When the support fixed shaft exits the stable release area, it enters the damping slope, but since the outer diameter of the damping slope is incremental and has a constant slope, it remains due to the frictional force with the damping slope and the deformation capacity of the support fixed shaft. The aftermath impact force of the sloping part can be offset, reducing the impact and compression on the return spring.

4 When the return step damping slope, the support fixed shaft and the return spring cancel each other out so as to exhaust the impact force of the aftermath, the elastic force due to the compression of the return spring is released. This pushes the adjustment inner shaft back into the use chamber from the static chamber. The frictional force generated between the damping slope and the support fixed shaft on the way weakly reduces the elastic force released from the return spring. The elastic force is weakly reduced until the support fixed shaft enters the stable release area, but when the support fixed shaft enters the stable release area, the elastic force of the return spring is almost eliminated. The frictional force generated by the damping slope and the support fixed shaft is also eliminated, and a large frictional force is not generated with the support fixed shaft in the stable release area. Therefore, when the support fixed shaft hits the adjustment ring base again, the repositioning is realized.

The analysis of the moving speed of the pen tip is as follows.
1 When it receives an impact, it quickly returns to the inside of the pen shaft.
2 Gently release the pressure in the pen shaft. Stop quietly and release until it absorbs all the impact.
3 Gradually bounce the pen tip first and until it is exposed from the pen shaft.
4 When exposed from the pen shaft, the pen tip should be loosely restored before it is ready for use.
Compared with the conventional technology, the above-mentioned technical proposal has the following beneficial effects.
1) With a simple hand operation, the pen core can be advanced while writing.
2) By having the automatic lock configuration, when not in use, automatic lock can be realized by rotating the device to the left or right by a certain width.
3) By having a multi-wing structure, the appearance of the aesthetic pen is more beautiful and the grip feeling is excellent. Depending on the configuration design, a certain gap is formed between the first axle body and the second axle cylinder, but the gap is the maximum especially when not in use. On the other hand, if a multi-blade configuration is adopted, the gap in this part can be completely shielded.
4) It becomes easy to replace the pen core. By disassembling the gripping portion and the fitting portion of the first shaft body, the removal operation and the attachment operation can be conveniently performed without affecting the original operation.
5) It has a fall protection mechanism and automatically restores the pen core after the dropped impact force disappears, so that even if the pen falls, it can be picked up and used normally.
6) By having the damping configuration, it is possible to secondarily absorb the elastic force released from the return spring, and it is possible to avoid the secondary damage.

FIG. 1 is a perspective view of a first embodiment of the present invention. FIG. 2 is a front view of the first embodiment of the present invention. FIG. 3 is a cross-sectional view taken along the line AA of FIG. 2 in the present invention. FIG. 4 is a partially enlarged view of FIG. 3A in the present invention. FIG. 5 is an exploded perspective view of Example 1 of the present invention. FIG. 6 is a perspective view of a sewn portion according to an embodiment of the present invention. FIG. 7 is a partially enlarged view of C of FIG. 6 of the present invention. FIG. 8 is a perspective view of the knuckle portion according to the embodiment of the present invention as viewed from the side. FIG. 9 is a partially enlarged view of D of FIG. 8 of the present invention. FIG. 10 is a perspective view of a second embodiment of the present invention. FIG. 11 is a front view of the second embodiment of the present invention. FIG. 12 is a cross-sectional view taken along the line CC of FIG. 11 in the present invention. FIG. 13 is a partially enlarged view of FIG. 12B in the present invention. FIG. 14 is an exploded perspective view of Example 2 of the present invention. FIG. 15 is a left side view of Example 2 of the present invention. FIG. 16 is a cross-sectional view of EE of FIG. 15 in the present invention. FIG. 17 is a perspective view of FIG. 16 in the present invention. FIG. 18 is a partially enlarged view of E of FIG. 17 in the present invention.

The most important features of the present invention have been outlined rather than outlined so that the following detailed description can be better understood and the contribution of the present invention in the art to be better understood. Other features of the invention will become apparent from the following detailed description of the invention, along with related drawings and claims, or by practicing the invention. The examples below are merely partial examples of carrying out the present invention and should not be understood as all examples. All other examples obtained by those skilled in the art based on the examples in the present invention without spending creative labor should belong to the scope of seeking protection of the present invention. Hereinafter, the present invention will be described in more detail with reference to the accompanying figures.

Example 1
The rotary automatic lock fall protection pen shown in FIGS. 1 to 9 includes a first shaft body 1, a second shaft cylinder 2, a pen core 3, a sealing lid 8, and a return spring 4, and the pen core 3 And the return spring 4 are both sewn into the first shaft body 1, the first shaft body 1 and the pen core 3 are sewn into one end of the second shaft cylinder 2, and the sealing lid. 8 is mounted in the other end of the second shaft cylinder 2.

The first shaft body 1 is configured to include a grip portion 11 and a knuckle portion 12, an extension knuckle shaft 112 is provided on the grip portion 11, and a knuckle fitting groove 121 is provided on the knuckle portion 12. The gripping portion 11 and the knuckle portion 1 are provided by engaging the extension knuckle shaft 112 into the knuckle fitting groove 121.
The first shaft body 1 is configured so as to be engaged with 2.

The joint portion 12 is provided with one or more deformed union grooves 13, and the deformed union groove 13 is provided.
Is configured by sequentially arranging and combining the mounting cut-out groove 131, the cross groove 132, and the fitting groove 133, and a stretched inner shaft 14 is further provided in the deformed union groove 13, and the stretched inner shaft 14 is the cut-out groove. It is attached to 131 and extends into the fitting 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 cut-out groove 131 and the cross groove 132, and the deformed convex block 142 is It is located in the fitting groove 133. The fitting groove 133 is divided into a fitting switching area 135, a fitting entry area 136, a fitting receding area 134, and a receding repositioning slope 137 by the deformed convex block 142.

A fitting folding hook 24 that can be moved to the deformed union groove 13 is provided in the second axle cylinder 2, and the deformed convex block 142 is further provided with a slope auxiliary path 1421 on its surface, and a fitting switching area thereof is provided. A fitting recessed groove 1422 is further provided on the 135 side.

It is configured so that it can be changed between the used state and the carrying state, which are two types of fitting states, depending on the positional relationship of the fitting folding hook 24 in the deformed union groove 13.
(1) The used state is a state in which the fitting folding hook 24 is located in the deformed convex block 142 and specifically located in the fitting concave groove 1422. In this case, the pen of the pen core. The tip is partially exposed from the first shaft body 1;
(2) The carrying state is a state in which the fitting folding hook 24 is located in the cross groove 132, and in this case, the pen core is completely inside the first shaft body 1 and the second shaft cylinder 2. In order to expose and conceal the pen core that is hidden in the pen core, a stable bistatic position is created mainly by moving the mating folding hook in the deformed union groove, and each of them is used as the first shaft body when the pen core is exposed. The mated state of the second shaft cylinder and the mated state when the pen core is concealed are realized. The switching between the two states becomes a movement locus in the deformed union groove 13 of the fitting folding hook 24.

The movement locus of the fitting folding hook 24 in the deformed union groove 13 is specifically as follows.
1 From the mounting cut-out groove 131, crosses the mounting protrusion 141 and enters the cross groove 132.
2 Enter the fitting groove 133 from the cross groove 132.
3 In the fitting groove 133, the deformed convex block 142 is contacted in the fitting entry area 136, and the deformed convex block 142 is displaced to the axial center by the slope auxiliary path 1421, that is, the extension inner shaft 14 is deformed. After that, the fitting switching area is entered, and after entering the fitting switching area, the extension inner shaft 1
The deformation of 4 is repositioned, that is, the deformed convex block 142 is repositioned constructively, whereby the fitting folding hook 24 is fixed in the fitting recessed groove 1422.
4 After that, by rotating the second axle cylinder 2, the fitting folding hook 24 moves to the left or right, detaches from the fitting recessed groove 1422, and enters the fitting retreat area 134.
5 After entering the mating receding area 134, the mating folding hook 24 is automatically moved to the counter-falling return slope 137 by being acted on by the elastic force of the return spring 4.
6 The recoil return slope 137 guides the range in which the fitting folding hook 24 is detached from the fitting groove 133, and reenters the cross groove 132.
7 If it is not necessary to replace the pen core, repeat steps 2 to 6 above.
8 If it is necessary to replace the pen core, after the process 6 is completed, the pen core is moved from the cross groove 132 to the mounting cut-out groove 131 over the mounting protrusion 141, and then separated from the deformed union groove 13.

Leading-out auxiliary slopes 1423 are provided on both sides of the fitting recessed groove 1422, the opening is outward, and the fitting folding hook 24 is fitted in order to quickly switch the usage state to the portable state and save labor. Guide the mating concave groove 1422 away from both sides of the combined concave groove 1422.

When the fitting folding hook 24 has just entered the fitting groove, entering a portion other than the fitting entry area interferes with the completion of the operation of the above process 3 and further affects the entry into the used state. In order to prevent this, the fitting entry area 136 of the deformed convex block 142
An approach guide slope 1424 is further provided on the side. The opening of the approach guide slope 1424 is outward, and the fitting turn-back hook 24 is provided from the fitting entry area 136 to the slope auxiliary road 14.
Guide you to enter 21. The approach guide slope 1424 can appropriately prevent the movement locus of the fitting folding hook from shifting.

In order to provide the stretched inner shaft with good elasticity and deformation capacity, the deformed convex block and the mounting protrusion are provided with a certain elasticity to facilitate the fitting folding hook and the subsequent fitting. Since the mounting protrusion is simply used when mounting and replacing the pen core, the engaging force between the fitting folded hook and the mounting protrusion should be greater than the engaging force between the fitting folded hook and the deformed convex block. In this way, in order to stably maintain the mating state of the mating folding hook and the deformed convex block, the fitting folding hook does not easily cross the mounting protrusion, and the fitting folding hook is unexpectedly deformed. Prevent situations such as detachment from the union ditch.

Therefore, by providing a gap between the extending inner shaft 14, the cross groove 132, and the fitting groove 133 so as not to contact them, the deformed convex block 142 and the fitting groove 133 also do not come into contact with each other. Can be done. A gap is also provided at both ends of the extension inner shaft 14 and the mounting cut-out groove 131 to flow, while the bottom end of the extension inner shaft 14 and the mounting cut-out groove 131 are connected to each other so that the mounting projection 141 and the cross The groove 132 and the mounting cut-out groove 131 are also configured so as not to come into contact with each other.

However, in this way, the bottom end of the stretched inner shaft 14 is connected to the mounting cut-out groove 131, and the mounting protrusion 141 is located closer to the bottom end side of the stretched inner shaft 14 than the deformed convex block 142. Therefore, if the external force is equivalent, the deformation width due to the external force received by the external force can be 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 mounting protrusion of the fitting folding hook. The force required to exceed 14 is made greater than the force required to exceed the deformed convex block 142 of the mating folded hook.

The mating folding hook can simply slide into the mating recess of the deformed convex block, and cannot be detached from the mating recess via the same line, and can be detached from the mating recess by lateral movement. It can be secured so that it is possible, and after the fitting folding hook enters the fitting recess, the stability of the configuration fitting of the first shaft body and the second shaft body is ensured, and the writing force by the user is easily improved. In order to be able to carry out this, the fitting folding hook 24 has a folding hook-like structure that is bent inward so as to hang the fitting concave groove 1422, thereby laterally forming the fitting concave groove 1422. It is easily accessible and cannot be detached laterally from the fitting recess 1422, and does not prevent it from sliding out of the fitting recess 1422 via the left and right sides of the fitting recess 1422. It is composed of.

In order to provide a fall protection effect and prevent inconvenience due to excessive writing force, one or more support and fixed shafts 2 are located in the middle of the second shaft cylinder 2 near the second shaft line.
1 is extended along an oblique direction, and the internal space of the second shaft cylinder 2 is the support fixed shaft 21.
Is divided into a use chamber 22 and a stationary chamber 23.

Further, for that purpose, the adjusting inner shaft 6 has a rod configuration, and an adjusting ring base 62 is provided at the tip thereof.
A conflict base 63 is provided at the other end, and the adjustment ring base 62 is further provided with a fixing base 61 at the tip thereof, and is mounted and contacted in the second shaft cylinder 2, and the end thereof is the second shaft cylinder. It penetrates 2 and is fitted with the sealing lid 8 by a screw or a buckle means.

Further, the adjusting inner shaft 6 expands and contracts movably in the second shaft cylinder 2. The adjusting ring base 62 is provided with a support guide slope 621 on the terminal side and a damping slope 622 on the tip side, and a pen core fixing ring body 611 is further provided in the fixed base 61, and the pen core 4 is provided. The end of the pen core fixing ring 611 is engaged with the pen core fixing ring 611, and the return spring 4 is mounted in the second shaft cylinder 2 to specifically cause the conflict. It is located between the base 63 and the sealing lid 8.

Further, the fixed slope 21 that conflicts with the support guide slope 621 on the support fixed shaft 21.
1 is provided, and when the support fixing shaft 21 and the adjusting ring base 62 conflict with each other, the contact base 63 and the base of the support fixing shaft 21 are configured to conflict with each other.
The adjusting ring base 62 is stably fixed in the support inner cylinder 2.

Further stable release area 62 between the support guide slope 621 and the damping slope 622
3 is provided, the length of the stable release area 623 is equal to or larger than the contraction distance of the pen core 4, and the contraction distance of the pen core 4 exposes the pen tip of the pen core 4. This is the distance from the state of use to the point where the pen shaft 1 is completely entered.

In order to improve the fall protection effect, the force adjustment parameters need to be diversified. Among them, frictional force is one of the unavoidable influential factors. The specific adjustment of the coefficient is also important. By having different textures on the surfaces of the support guide slope 621 and the fixed slope 211, the frictional force between the support guide slope 621 and the fixed slope 211 becomes variable, and the friction coefficient H thereof can be changed. By having different textures on the surfaces of the support guide slope 621 and the damping slope 622, the support guide slope 621
The frictional force between and the damping slope 622 becomes variable, and its friction coefficient T can be changed. The damping slope 622 and the shaft body axis of the adjusting inner shaft 6 form a sandwiching angle X, and the support guide slope 621 and the shaft body axis of the adjusting inner shaft 6 form a sandwiching angle Y.

In order to effectively protect the pen core conveniently and quickly, and to further prevent inconvenience caused by writing power, if the writing power is too large, even if the fall protection mechanism is not triggered, the writing power will increase. Since it acts on the grip part, if the grip part receives an excessive force, the point of action on the pen core is at the base of the second shaft body, so the first magnetic part and the second magnetic part are detached. As a warning, the user will be notified that the writing ability is excessive, because writing will not be continued due to the separation of the two.

For this purpose, a first magnetic component 5 is further provided between the extension fitting shaft 112 and the fitting fitting groove 121.
And the second magnetic component 51 are provided, at least one of the first magnetic component 5 and the second magnetic component 51 is made of a permanent magnet, and the other magnetic component is made of a magnetic absorbing material. The first magnetic component 5 is fixed in the fitting fitting groove 121 by an adhesive or engaging means, and the second magnetic component 51 is fixed to the stretched engaging shaft 112 by an adhesive or engaging means. As a result, the extending joint shaft 112 and the fitting fitting groove 121 are combined by the magnetic coupling of the first magnetic component 5 and the second magnetic component 51 in place of the engaging means, and the first shaft body is formed. It is configured to form 1.

The acting force in the present invention will be further described. A resultant force between the contact force generated between the support fixing shaft 21 and the support guide slope 621 and the elastic force of the return spring 4 in the support inner cylinder 2 with respect to the adjustment inner shaft 6 is generated in writing by a person. It is configured so that it is larger than the normal compression force to be applied and smaller than the impact force generated when the pen is dropped from the desk and the pen core lands first, and the resultant force is the deformation tensile force of the support fixed shaft 21. It is determined by the sandwich angle Y, the elastic force of the return spring 4, and the friction coefficient H. After the impact force disappears or decreases, the adjusting inner shaft 6 is restored by the elastic force of the return spring 4. It is configured to be able to be.

In the present invention, more preferably, a gripping sleeve may be clasped and installed on the gripping portion 11 of the first shaft body 1, and a webbing sleeve may be clasped and installed on the second shaft cylinder 2. Both the gripping sleeve and the webbing sleeve shall be soft rubber sleeves.

Example 2
The rotary automatic lock fall protection pen shown in FIGS. 6 to 18 includes a first shaft body 1, a second shaft cylinder 2, a pen core 3, a sealing lid 8, and a return spring 4, and the pen core 3 And the return spring 4 are both sewn into the first shaft body 1, the first shaft body 1 and the pen core 3 are sewn into one end of the second shaft cylinder 2, and the sealing lid 8 is provided. Is installed in the other end of the second shaft cylinder 2.

The second axle cylinder 2 includes a multi-blade member 25 and a shaft cylinder body 26, and two or more extended multi-blade shafts 251 are stretched and installed on the multi-blade member 25, and the multi-blade member 25 and shaft cylinder 2
6 is engaged and connected, and the shaft cylinder 26 is rotatable with respect to the multi-blade member 25.

The first shaft body 1 is configured to include a grip portion 11 and a knuckle portion 12, an extension knuckle shaft 112 is provided on the grip portion 11, and a knuckle fitting groove 121 is provided on the knuckle portion 12. The gripping portion 11 and the knuckle portion 1 are provided by engaging the extension knuckle shaft 112 into the knuckle fitting groove 121.
The first shaft body 1 is configured so as to be engaged with 2.

The grip portion 11 is provided with a multi-blade groove 111 having the same number as the extended multi-blade shaft 251, and is slidably attached to the extended multi-blade shaft 251 in the multi-blade groove 111. Wing part 1
One or more deformed union grooves 13 are provided in 2, and the deformed union groove 13 is configured by sequentially arranging and combining the mounting cut-in groove 131, the cross groove 132, and the fitting groove 133.

A stretched inner shaft 14 is further provided in the deformed union groove 13, and the stretched inner shaft 14 is installed so as to be attached to the notch groove 131 and stretched into the fitting groove 133, and the stretched inner shaft 14 is installed. A mounting protrusion 141 and a deformed convex block 142 are provided on the 14. Specifically, the mounting protrusion 141 is located between the mounting cut-out groove 131 and the cross groove 132, and the deformed convex block 1 is provided.
42 is located in the fitting groove 133.

The fitting groove 133 is divided into a fitting switching area 135, a fitting entry area 136, a fitting rebound area 134, and a rebound return slope 137 by the deformed convex block 142, and the deformed shape is contained in the shaft cylinder 26. A movable mating folding hook 24 is provided in the union groove 13.
The deformed convex block 142 is further provided with a slope auxiliary path 1421 on the surface thereof, and a fitting concave groove 1422 is further provided on the fitting switching area 135 side thereof.

It is configured so that it can be changed between the used state and the carrying state, which are two types of fitting states, depending on the positional relationship of the fitting folding hook 24 in the deformed union groove 13.
(1) The used state is a state in which the fitting folding hook 24 is located in the deformed convex block 142 and specifically located in the fitting concave groove 1422. In this case, the pen of the pen core. The tip is partially exposed from the first shaft body 1;
(2) The carrying state is a state in which the fitting folding hook 24 is located in the cross groove 132, and in this case, the pen core is completely inside the first shaft body 1 and the second shaft cylinder 2. Hidden in.

It is very important that the pen core structure can be kept concealed when it is convenient to carry and when going out, otherwise shoes and clothes may be soiled. In the present invention, automatic lock grooves 1322 are provided on both sides of the cross groove 132 so that the pen core is not exposed during carrying.
Is provided, and an auxiliary advance slope 1323 and an automatic lock auxiliary slope 1321 are provided between the automatic lock groove 1322 and the cross groove 132, respectively, and the automatic lock groove 13 is provided.
A retaining protrusion 13221 is further provided between the 22 and the auxiliary advance slope 1323 and the automatic lock auxiliary slope 1321.

For this purpose, the fitting folding hook 24 can advance the automatic lock groove 1322 after overcoming the resistance force of the retaining protrusion 13221 by the auxiliary advancing slope 1323 and the automatic locking auxiliary slope 1321. It is configured to provide an auto-locking state, which is a third type of mating state.

Further, in the automatic lock state, the fitting folding hook 24 is located in the automatic lock groove 1322, the pen core is completely hidden in the first shaft body 1 and the second shaft cylinder 2, and the pen core is completely hidden in the first shaft body 1 and the second shaft cylinder 2.
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.

In order to expose and conceal the pen core, three stable static positions are created mainly by moving the mating folding hook in the deformed union groove, and each of them creates the first shaft body and the second when the pen core is exposed. The mated state of the shaft cylinder, their mated state when the pen core is concealed, and the first shaft body and the first shaft body when the pen core conceals and locks the vertical movement function of the first shaft body and the second shaft body. Achieves a mated state of a biaxial cylinder. The switching between the three states becomes a movement locus in the deformed union groove 13 of the fitting folding hook 24.

The movement locus of the fitting folding hook 24 in the deformed union groove 13 is specifically as follows.
1 From the mounting cut-out groove 131, crosses the mounting protrusion 141 and enters the cross groove 132.
2 Enter the fitting groove 133 from the cross groove 132.
3 In the fitting groove 133, the deformed convex block 142 is contacted in the fitting entry area 136, and the deformed convex block 142 is displaced to the axial center by the slope auxiliary path 1421, that is, the extension inner shaft 14 is deformed. After that, the fitting switching area is entered, and after entering the fitting switching area, the extension inner shaft 1
The deformation of 4 is repositioned, that is, the deformed convex block 142 is repositioned constructively, whereby the fitting folding hook 24 is fixed in the fitting recessed groove 1422.
4 After that, by rotating the second axle cylinder 2, the fitting folding hook 24 moves to the left or right, detaches from the fitting recessed groove 1422, and enters the fitting retreat area 134.
5 After entering the mating receding area 134, the mating folding hook 24 is automatically moved to the counter-falling return slope 137 by being acted on by the elastic force of the return spring 4.
6 The recoil return slope 137 guides the range in which the fitting folding hook 24 is detached from the fitting groove 133, and reenters the cross groove 132.
7 If it is not necessary to replace the pen core, repeat steps 2 to 6 above.
8 If it is necessary to replace the pen core, after the process 6 is completed, the pen core is moved from the cross groove 132 to the mounting cut-out groove 131 over the mounting protrusion 141, and then separated from the deformed union groove 13.
9 If automatic locking is structurally required, after the process 6 is completed, the fitting folding hook 24 is moved to the left or right by rotating the second axle cylinder 2, and the retaining protrusion 1322 is used.
After overcoming the resistance force of 1, it enters the automatic lock groove 1322.
10 When attempting to release the automatic lock state, after the above process 9 is completed, the fitting folding hook 24 is moved to the left or right by rotating the second axle cylinder 2, and the retaining projection 1 is released.
After overcoming the resistance of 3221, it reenters the cross groove 132.

Leading-out auxiliary slopes 1423 are provided on both sides of the fitting recessed groove 1422, the opening is outward, and the fitting folding hook 24 is fitted in order to quickly switch the usage state to the portable state and save labor. Guide the mating concave groove 1422 away from both sides of the combined concave groove 1422.

When the fitting folding hook 24 has just entered the fitting groove, entering a portion other than the fitting entry area interferes with the completion of the operation of the above process 3 and further affects the entry into the used state. In order to prevent this, the fitting entry area 136 of the deformed convex block 142
An approach guide slope 1424 is further provided on the side. The opening of the approach guide slope 1424 is outward, and the fitting turn-back hook 24 is provided from the fitting entry area 136 to the slope auxiliary road 14.
Guide you to enter 21. The approach guide slope 1424 can appropriately prevent the movement locus of the fitting folding hook from shifting.

In order to provide the stretched inner shaft with good elasticity and deformation capacity, the deformed convex block and the mounting protrusion are provided with a certain elasticity to facilitate the fitting folding hook and the subsequent fitting. Since the mounting protrusion is simply used when mounting and replacing the pen core, the engaging force between the fitting folded hook and the mounting protrusion should be greater than the engaging force between the fitting folded hook and the deformed convex block. In this way, in order to stably maintain the mating state of the mating folding hook and the deformed convex block, the fitting folding hook does not easily cross the mounting protrusion, and the fitting folding hook is unexpectedly deformed. Prevent situations such as detachment from the union ditch.

Therefore, by providing a gap between the extending inner shaft 14, the cross groove 132, and the fitting groove 133 so as not to contact them, the deformed convex block 142 and the fitting groove 133 also do not come into contact with each other. Can be done. A gap is also provided at both ends of the extension inner shaft 14 and the mounting cut-out groove 131 to flow, while the bottom end of the extension inner shaft 14 and the mounting cut-out groove 131 are connected to each other so that the mounting projection 141 and the cross The groove 132 and the mounting cut-out groove 131 are also configured so as not to come into contact with each other.

However, in this way, the bottom end of the stretched inner shaft 14 is connected to the mounting cut-out groove 131, and the mounting protrusion 141 is located closer to the bottom end side of the stretched inner shaft 14 than the deformed convex block 142. Therefore, if the external force is equivalent, the deformation width due to the external force received by the external force can be 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 mounting protrusion of the fitting folding hook. The force required to exceed 14 is made greater than the force required to exceed the deformed convex block 142 of the mating folded hook.

The mating folding hook can simply slide into the mating recess of the deformed convex block, and cannot be detached from the mating recess via the same line, and can be detached from the mating recess by lateral movement. It can be secured so that it is possible, and after the fitting folding hook enters the fitting recess, the stability of the configuration fitting of the first shaft body and the second shaft body is ensured, and the writing force by the user is easily improved. In order to be able to carry out this, the fitting folding hook 24 has a folding hook-like structure that is bent inward so as to hang the fitting concave groove 1422, thereby laterally forming the fitting concave groove 1422. It is easily accessible and cannot be detached laterally from the fitting recess 1422, and does not prevent it from sliding out of the fitting recess 1422 via the left and right sides of the fitting recess 1422. It is composed of.

In order to provide a fall protection effect and prevent inconvenience due to excessive writing force, one or more support and fixed shafts 2 are located in the middle of the second shaft cylinder 2 near the second shaft line.
1 is extended along an oblique direction, and the internal space of the second shaft cylinder 2 is the support fixed shaft 21.
Is divided into a use chamber 22 and a stationary chamber 23.

Further, for that purpose, the adjusting inner shaft 6 has a rod configuration, and an adjusting ring base 62 is provided at the tip thereof.
A conflict base 63 is provided at the other end, and the adjustment ring base 62 is further provided with a fixing base 61 at the tip thereof, and is mounted and contacted in the second shaft cylinder 2, and the end thereof is the second shaft cylinder. It penetrates 2 and is fitted with the sealing lid 8 by a screw or a buckle means.

Further, the adjusting inner shaft 6 expands and contracts movably in the second shaft cylinder 2. The adjusting ring base 62 is provided with a support guide slope 621 on the terminal side and a damping slope 622 on the tip side, and a pen core fixing ring body 611 is further provided in the fixed base 61, and the pen core 4 is provided. The end of the pen core fixing ring 611 is engaged with the pen core fixing ring 611, and the return spring 4 is mounted in the second shaft cylinder 2 to specifically cause the conflict. It is located between the base 63 and the sealing lid 8.

Further, the fixed slope 21 that conflicts with the support guide slope 621 on the support fixed shaft 21.
1 is provided, and when the support fixing shaft 21 and the adjusting ring base 62 conflict with each other, the contact base 63 and the base of the support fixing shaft 21 are configured to conflict with each other.
The adjusting ring base 62 is stably fixed in the support inner cylinder 2.

Further stable release area 62 between the support guide slope 621 and the damping slope 622
3 is provided, the length of the stable release area 623 is equal to or larger than the contraction distance of the pen core 4, and the contraction distance of the pen core 4 exposes the pen tip of the pen core 4. This is the distance from the state of use to the point where the pen shaft 1 is completely entered.

In order to improve the fall protection effect, the parameters for adjusting the force need to be diversified. Among them, frictional force is one of the unavoidable influential factors. The specific adjustment of the coefficient is also important. By having different textures on the surfaces of the support guide slope 621 and the fixed slope 211, the frictional force between the support guide slope 621 and the fixed slope 211 becomes variable, and the friction coefficient H thereof can be changed. Support guide slope 621
By having different textures on the surface of the damping slope 622 and the damping slope 622, the frictional force between the support guide slope 621 and the damping slope 622 becomes variable, and the friction coefficient T thereof can be changed. The damping slope 622 and the shaft body axis of the adjusting inner shaft 6 form a sandwiching angle X, and the support guide slope 621 and the shaft body axis of the adjusting inner shaft 6 form a sandwiching angle Y.

In order to effectively protect the pen core conveniently and quickly, and to further prevent inconvenience caused by writing power, if the writing power is too large, even if the fall protection mechanism is not triggered, the writing power will increase. Since it acts on the grip part, if the grip part receives an excessive force, the point of action on the pen core is at the base of the second shaft body, so the first magnetic part and the second magnetic part are detached. As a warning, the user will be notified that the writing ability is excessive, because writing will not be continued due to the separation of the two.

For this purpose, a first magnetic component 5 is further provided between the extension fitting shaft 112 and the fitting fitting groove 121.
And the second magnetic component 51 are provided. At least one of the first magnetic component 5 and the second magnetic component 51 is made of a permanent magnet, and the other magnetic component is made of a magnetic absorbing material. The first magnetic component 5 is fixed in the fitting fitting groove 121 by an adhesive or engaging means, and the second magnetic component 51 is fixed to the stretched engaging shaft 112 by an adhesive or engaging means. As a result, the extending joint shaft 112 and the fitting fitting groove 121 are combined by the magnetic coupling of the first magnetic component 5 and the second magnetic component 51 in place of the engaging means, and the first shaft body is formed. It is configured to form 1.

The acting force in the present invention will be further described. A magnet 7 and a magnet chamber 213 are further provided in the support fixing shaft 21, and the magnet 7 is fixed in the magnet chamber 213. When the number of the support fixed shafts 21 is one, the adjusting inner shaft 6 is made of a magnetic absorbing material or a magnet. The contact force generated between the support fixing shaft 21 and the support guide slope 621, the elastic force of the return spring 4 in the support inner cylinder 2 with respect to the adjustment inner shaft 6, and the magnet in the support fixing shaft (21). The magnetic attraction between them or the resultant force between the support fixed shaft 21 and the adjustment inner shaft 6 is larger than the normal compression force generated in writing by a person, and the pen drops from the desk and the pen core lands first. It is configured to be smaller than the impact force generated in the case. The resultant force is determined by the deformed tensile force of the support and fixed shaft 21, the pinching angle Y, the elastic force of the return spring 4, and the friction coefficient H. After the impact force is extinguished or reduced, the adjusting inner shaft 6 is configured to be repositioned by the elastic force of the return spring 4.

In the present invention, more preferably, a gripping sleeve may be clasped and installed on the gripping portion 11 of the first shaft body 1, and a webbing sleeve may be clasped and installed on the second shaft cylinder 2. Both the gripping sleeve and the webbing sleeve are soft rubber sleeves.

Claims (7)

The first axle body (1), the second axle cylinder (2), the pen core (3), the sealing lid (8), and the return spring (
The pen core (3) and the return spring (4) are both entangled in the first shaft body (1), including the first shaft body (1) and the pen core (3). Is sewn into one end of the second axle (2), and the sealing lid (8) is attached to the other end of the second axle (2) with a rotary automatic lock fall protection pen. There,
The first shaft body (1) is configured to include a grip portion (11) and a knuckle portion (12), and the grip portion (1).
An extension knuckle shaft (112) is provided in 11), and a knuckle fitting groove (121) is provided in the knuckle portion (12).
Is provided, and the extension knuckle shaft (112) engages with the knuckle fitting groove (121) so that the grip portion (11) and the knuckle portion (12) are engaged with each other. As described above
1) is configured
The joint portion (12) is provided with one or more deformed union grooves (13), and the deformed union groove (13) is a mounting cut-in groove (131), a cross groove (132) and a fitting groove (133). ) Are arranged in sequence and combined.
A stretched inner shaft (14) is further provided in the deformed union groove (13), and the stretched inner shaft (14) is provided.
Is installed so as to extend from the mounting cut-out groove (131) to the inside of the fitting 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) has the mounting cut-out groove (131) and the cross groove (132).
The deformed convex block (142) is located in the fitting groove (133).
The fitting groove (133) is formed by the deformed convex block (142) in the fitting switching area (135).
Fitting entry area (136), mating receding area (134) and receding repositioning slope (137)
),
A fitting folding hook (24) that can be moved to the deformed union groove (13) is provided in the second shaft cylinder (2).
The deformed convex block (142) is further provided with a slope auxiliary path (1421) on its surface, and is further provided with a fitting concave groove (1422) on the fitting switching area (135) side.
It is configured so that it can be changed between the used state and the carrying state, which are two types of fitting states, depending on the positional relationship of the fitting folded hook (24) in the deformed union groove (13).
(1) The used state is a state in which the fitting folding hook (24) is located in the deformed convex block (142) and specifically located in the fitting concave groove (1422). In this case, , The pen tip of the pen core is partially exposed from the first shaft body (1);
(2) The carrying state is a state in which the fitting folding hook (24) is located in the cross groove (132), and in this case, the pen core is completely the first shaft body (1) and the said. Second shaft cylinder (
2) Hidden inside
One or more support and fixing shafts (21) are extended along an oblique direction at a position closer to the axis of the second shaft cylinder (2) in the middle of the second shaft cylinder (2). The internal space of the biaxial cylinder (2) uses the support and fixed shaft (21) as a boundary, and the chamber (22) and the stationary chamber (23) are used.
)
The adjustment inner shaft (6) has a rod configuration, an adjustment ring base (62) is provided at the tip, a conflict base (63) is provided at the other end, and the tip of the adjustment ring base (62) is further fixed. It is provided with a base (61) and is mounted and entwined in the second shaft cylinder (2), and its end penetrates the second shaft cylinder (2) and is attached to a sealing lid (8) by a screw or a buckle means. Fitted and
The adjustment inner shaft (6) is configured to movably expand and contract within the second shaft cylinder (2).
The adjustment ring base (62) is provided with a support guide slope (621) on the terminal side and a damping slope (622) on the tip side, and a pen core fixing ring body (621) is further provided in the fixed base (61).
611) is provided, the end of the pen core (3) is sewn into the fixing base (61), and the pen core fixing ring (611) is engaged with the return spring (4). ) Is mounted in the second barrel (2), and is specifically located between the conflict table (63) and the sealing lid (8).
The support fixing shaft (21) is further provided with a fixed slope (211) that conflicts with the support guide slope (621).
When the support fixed shaft (21) and the adjustment ring base (62) conflict with each other, the conflict base (63)
) And the base of the support fixing shaft (21) are configured to conflict with each other, so that the adjustment ring base (62) is stably fixed in the support inner cylinder (2).
A stable release area (623) is further provided between the support guide slope (621) and the damping slope (622), and the length of the stable release area (623) is the length of the pen core (623).
The contraction distance of the pen core (3) is made equal to or larger than the contraction distance of 3), and the contraction distance of the pen core (3) completely enters the pen shaft (1) from the used state where the pen tip of the pen core (3) is exposed. Is the distance to
The rotary automatic lock fall protection pen. Since the surfaces of the support guide slope (621) and the fixed slope (211) have different textures, the support guide slope (621) and the fixed slope (211) have different textures.
It is possible to change the frictional force between and change its friction coefficient H.
Since the surfaces of the support guide slope (621) and the damping slope (622) have different textures, the support guide slope (621) and the damping slope (622) have different textures.
It is possible to change the frictional force between and change its friction coefficient T.
The damping slope (622) and the shaft body axis of the adjusting inner shaft (6) form a narrowing angle X, and the supporting guide slope (621) and the shaft body axis of the adjusting inner shaft (6) form a narrowing angle Y. It's made up
The rotary automatic lock fall protection pen according to claim 1. A first magnetic component (5) is further between the stretched knuckle shaft (112) and the knuckle fitting groove (121).
And a second magnetic component (51) are provided, at least one of the first magnetic component (5) and the second magnetic component (51) is made of a permanent magnet, and the other magnetic component is a magnetic absorbing material. Made of
The first magnetic component (5) is fixed in the fitting fitting groove (121) by an adhesive or engaging means, and the second magnetic component (51) is stretched and welded by an adhesive or engaging means. Axis (11
It is fixed to 2)
As a result, the stretched knuckle shaft (112) and the knuckle fitting groove (121) become the first magnetic component (
5) and the second magnetic component (51) are magnetically coupled to form the first shaft body (1) by combining the engaging means in place of each other.
The rotary automatic lock fall protection pen according to claim 1. The frictional force generated between the support fixing shaft (21) and the support guide slope (621) and the elastic force of the return spring (4) in the support inner cylinder (2) with respect to the adjustment inner shaft (6). It is configured so that the resultant force with and is larger than the normal compression force generated in writing by a person and smaller than the impact force generated when the pen is dropped from the desk and the pen tip of the pen core lands.
The resultant force is determined by the deformation tensile force of the support fixing shaft (21), the clearance angle Y, the elastic force of the return spring (4), and the friction coefficient H.
After the impact force is extinguished or reduced, the adjusting inner shaft (6) is configured to be repositioned by the elastic force of the return spring (4).
The rotary automatic lock fall protection pen according to claim 1. A magnet (7) and a magnet chamber (213) are further provided in the support fixing shaft (21).
The magnet (7) is fixed in the magnet chamber (213), and the magnet (7) is fixed in the magnet chamber (213).
When the number of the support fixing shafts (21) is one, the adjusting inner shaft (6) is made of a magnetic absorbing material or a magnet, and the support fixing shaft (21) and the support guide slope (621). The conflicting force generated between the two and the adjusting inner shaft (4) of the return spring (4) in the supporting inner cylinder (2).
The combined force of the elastic force with respect to 6) and the magnetic attraction between the magnets on the support and fixation shaft (21) or the magnetic attraction between the support and fixation shaft (21) and the adjustment inner shaft (6) is written by a person. It is configured so that it is larger than the normal compression force generated and smaller than the impact force generated when the pen is dropped from the desk and the pen tip of the pen core lands, and the resultant force is the deformation of the support fixed shaft (21). It is determined by the tensile force, the clearance angle Y, the elastic force of the return spring (4), and the friction coefficient H.
After the impact force is extinguished or reduced, the adjusting inner shaft (6) is configured to be repositioned by the elastic force of the return spring (4).
The rotary automatic lock fall protection pen according to claim 1. The first shaft body (1), the second shaft cylinder (2), the pen core (3), the sealing lid (8), and the return spring (4).
), The pen core (3) and the return spring (4) are both entangled in the first shaft body (1), and the first shaft body (1) and the pen core (3) are said. A rotary automatic lock fall protection pen that is sewn into one end of the second axle tube (2) and has the sealing lid (8) attached to the other end of the second axle tube (2). ,
The second axle tube (2) includes a multi-blade member (25) and a shaft body (26), and the multi-blade member (25) has two or more extended multi-blade shafts (251). It is extended and installed, the multi-blade member (25) and the shaft shaft body (26) are engaged and connected, and the shaft shaft body (26) is the multi-wing member (26).
It is rotatable with respect to 25)
The first shaft body (1) is configured to include a grip portion (11) and a knuckle portion (12), and the grip portion (1).
An extension knuckle shaft (112) is provided in 11), and a knuckle fitting groove (121) is provided in the knuckle portion (12).
Is provided, and the extension knuckle shaft (112) engages with the knuckle fitting groove (121) so that the grip portion (11) and the knuckle portion (12) are engaged with each other. As described above
1) is configured
The grip portion (11) is provided with a multi-blade groove (111) having the same number as the extended multi-blade shaft (251), and the extended multi-blade shaft (251) is provided in the multi-blade groove (111). It is slidably attached and
The joint portion (12) is provided with one or more deformed union grooves (13), and the deformed union groove (13) is a mounting cut-in groove (131), a cross groove (132) and a fitting groove (133). ) Are arranged in sequence and combined.
A stretched inner shaft (14) is further provided in the deformed union groove (13), and the stretched inner shaft (14) is provided.
Is installed so as to extend from the mounting cut-out groove (131) to the inside of the fitting 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) has the mounting cut-out groove (131) and the cross groove (132).
The deformed convex block (142) is located in the fitting groove (133).
The fitting groove (133) is formed by the deformed convex block (142) in the fitting switching area (135).
Fitting entry area (136), mating receding area (134) and receding repositioning slope (137)
),
A fitting folding hook (24) that can be moved to the deformed union groove (13) is provided in the shaft body (26).
The deformed convex block (142) is further provided with a slope auxiliary path (1421) on its surface, and is further provided with a fitting concave groove (1422) on the fitting switching area (135) side.
It is configured so that it can be changed between the used state and the carrying state, which are two types of fitting states, depending on the positional relationship of the fitting folded hook (24) in the deformed union groove (13).
(1) The used state is a state in which the fitting folding hook (24) is located in the deformed convex block (142) and specifically located in the fitting concave groove (1422). In this case, , The pen tip of the pen core is partially exposed from the first shaft body (1);
(2) The carrying state is a state in which the fitting folding hook (24) is located in the cross groove (132), and in this case, the pen core is completely the first shaft body (1) and the said. Second shaft cylinder (
2) Hidden inside
Further, automatic lock grooves (1322) are provided on both sides of the cross groove (132), and an auxiliary advance slope (1323) and an automatic lock assist are provided between the automatic lock groove (1322) and the cross groove (132), respectively. A slope (1321) is provided, and the automatic lock groove (
1322) and the auxiliary advance slope (1323) and automatic lock auxiliary slope (1321).
) Is further provided with a retaining protrusion (13221).
The mating folding hook (24) advances the automatic lock groove (1322) after overcoming the resistance force of the retaining protrusion (13221) by the auxiliary advancing slope (1323) and the automatic locking auxiliary slope (1321). It is configured so that it can be equipped with an automatic lock state, which is a third type of mating state.
In the automatic lock state, the fitting folding hook (24) is located in the automatic lock groove (1322), and the pen core is completely the first shaft body (1) and the second shaft cylinder (2). While being hidden inside, 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) are engaged. It is in a state where it cannot move up and down,
An approach guide slope (1424) is further provided on the fitting approach area (136) side of the deformed convex block (142), and the entry guide slope (1424) has an opening facing outward, and the fitting folding hook. (24) is formed so as to guide the (24) from the fitting approach area (136) to enter the slope auxiliary road (1421).
Leading-out auxiliary slopes (1423) are provided on both sides of the fitting recess (1422), the opening thereof is outward, and the fitting folding hook (24) is inserted from both sides of the fitting recess (1422). It is formed to guide away from the mating recess (1422).
The fitting folded hook (24) has a folded hook-like structure that is bent inward so as to hang the fitting concave groove (1422), so that the fitting concave groove (1422) can be easily laterally bent. It is accessible and cannot be detached laterally from the fitting recess (1422), and slides out of the fitting recess (1422) via the left and right sides of the fitting recess (1422). Constructed so as not to interfere with
The rotary automatic lock fall protection pen By providing a gap between the stretched inner shaft (14) and the cross groove (132) and the fitting groove (133) so as not to bring them into contact with each other, the deformed convex block (142) and the fitting groove (the fitting groove) 133) is also configured so that it does not come into contact with it.
While gaps are also provided at both ends of the stretched inner shaft (14) and the mounting cut-out groove (131), the bottom end of the stretched inner shaft (14) and the mounting cut-out groove (131) are connected to each other. The mounting protrusion (141) is configured so that the cross groove (132) and the mounting notch groove (131) do not come into contact with each other.
In this way, the bottom end of the stretched inner shaft (14) is connected to the mounting cut-out groove (131), and the mounting protrusion (141) is formed from the deformed convex block (142) of the stretched inner shaft (14). By being located on the bottom end side, if the external force is equivalent, the deformation width due to the external force received by the external force can be 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 to cross the mounting projection (14) of the fitting folding hook is made larger than the force required to cross the deformed convex block (142) of the fitting folding hook.
The rotary automatic lock fall protection pen according to claim 6.

Images