CALCULUS STRUCTURE
A calculus structure has a plurality of unit components and a plurality of joint components is provided. The unit components and the joint components are adapted to form a target structure. Each end of each of the joint components has an embedding construction or an embedded construction. Each of the unit components and the joint components has a bore therein for communication with each other. The bore is adapted to allow a cascading part to pass therethrough so that the unit components and the joint components are cascaded together by the cascading part, and the unit components and the joint components are movable relative to the cascading part so that the unit components and the joint components abut against each other in a cascading order to form the target structure.
Not applicable.
BACKGROUND OF THE INVENTIONField of the Invention
The present invention relates to a decomposable and re-composable device construction, and more particularly, to a decomposable and re-composable multi-purpose instant “Calculus” structure (discrete structure).
Descriptions of the Related Art
Dolls that are designed into segments and can be pulled into a state where legs stand straight or be released into a collapsed state by means of a string have already been available on the market, but there is still a room for improvement thereon. In consideration of this and in light of the design concept of the early extensible pencil formed by a plurality of small segments of pencil cores, the present invention proposes a Calculus structure formed of a plurality of small units.
SUMMARY OF THE INVENTIONWith the proceeding of modernization, articles for daily life are getting smaller, thinner, and lighter, and more and more of them are designed to be portable, and preferably all articles can be decomposed and re-composed or can be folded and spread for the ultimate convenience of use. Here is a common structure principle that allows many articles of three-dimensional (3D) structures to be decomposable and re-composable in a very simple way, which is called the “Calculus” structure or discrete structure because of the nature of the principle. As its name implies, this common structure principle divides an article into a plurality of parts and then recomposes them together with simply one additional procedure and via a little trick:
The framework of the article is divided into a plurality of segments, with the basic repeated parts being called unit components (differential) and the interlaced or curved joint parts being called joint components, each end of the joint components has a construction that can be embedded into or be embedded by the adjacent unit component to support the adjacent unit component (the unit component may also have an embedding or embedded construction if necessary). Then, when all the unit components and the joint components are cascaded in the original order and pulled tight by a cascading part such as a thread or a string, the original framework can be recovered completely accurately (integration). When the cascading part is released again, the framework will be decomposed immediately. In this way, a framework structure that can be easily decomposed and re-composed instantly can be provided. Because the framework is divided into a plurality of segments, the article in the decomposed state can be arbitrarily accommodated into a smallest volume to be carried on or handled conveniently. Additionally, when being pulled tight by a tenacious cascading part such as a thread or a string, the framework composed of the segments will only become curved under the action of an external force without being fractured or collapsed, and once the external force is reduced or removed, the framework will restore its original shape. This imparts to the framework a desired anti-fracture property which is impossible for general stiff structures.
As shown in
Herein, the segments are called unit components 101 (as shown in
Numerous practical applications can be derived from such a simple principle and method. Of course, there may be different specific problems to be overcome in different situations, or there may be common problems to be overcome. Hereinbelow, details of the implementations will be discussed with reference to several possible applications that might be commonly adopted, and a conclusion will be made for all the common problems and other matters.
I. SHELTERSShelters are articles to which the Calculus structure of the present invention is the most applicable, and now several kinds of representative articles will be discussed.
1. Umbrellas
As one of the necessities for people's daily life, the umbrella construction has remained unchanged for hundreds of years, but now it might be expected to be changed due to the present invention. Recently, it happened that a Europe specialist has developed a kind of umbrella that can be folded reversely, but the construction thereof is too complex and too costly to be popularized. In contrast, with the Calculus structure of the present invention, a plurality of sets of umbrella framework unit components 201 (as shown in
In this embodiment, the umbrella framework unit components 201 and the umbrella post unit components 210 correspond to the aforesaid unit components 101, the umbrella framework elbow tubes 202, the umbrella post joint components 209 and the handle joint component 211 correspond to the aforesaid joint component 102, the embedding construction 203 correspond to the aforesaid embedding construction 103, the string 204 corresponds to the aforesaid cascading part 104, the start end 205 of the string corresponds to the aforesaid start end 105, and the tail end 206 of the string corresponds to the aforesaid tail end 106.
Referring back to
When the umbrella is not used, the whole umbrella including the umbrella post can be decomposed instantly by simply releasing the tail end 206 of the string from the slit 212 (the umbrella post is not required to be made in this way, but may be made in other better ways as described later). At this point, the whole umbrella becomes soft (as shown in
Supplemental Discussion:
(1) If the Calculus structure of the present invention is used to form a vertical section (e.g., the umbrella post in this example), then it is preferable that the unit component comprises an embedding construction to ensure upright standing of the vertical section under the action of an external force unless the section is suspended (e.g., the section that is located at the start end of the umbrella framework and close to be vertical as shown in
(2) There shall be sufficient space at an inner side of the last component (the handle joint component 211 in this example) before the tail end to allow the tail-end blocking part 107 (corresponding to the tie 207 of the tail end of the string in this example, as shown in
(3) The unit components 101 having an embedding construction 103 and the last component having a fixing device before the tail end 106 may be considered as joint components 102.
Discussion of Various Possibilities
a. Different Umbrella Surfaces
With the Calculus structure of the present invention, the umbrella no longer must be arc-shaped, but may have a completely new shape formed of straight lines, arbitrarily bent angles or curves in combination, for example, the block-like umbrella shown in
b. Different Umbrella Posts
Because many people who have been accustomed to use of conventional umbrellas may not be accustomed to use of umbrellas of which the middle umbrella post will become decomposed when the umbrella is accommodated, the umbrella post may not adopt the Calculus structure but may be a conventional umbrella post having a fixed length or being telescoped in stages. In this case, the umbrella fabric of the umbrella adopting the Calculus structure is completely soft when being accommodated, so it is unnecessary for the umbrella post to be made as long as the conventional ones (the conventional umbrella post is made long to prevent the handle from being unaccessible as being covered by the umbrella fabric). Therefore, even when a conventional umbrella post is adopted, the length of the umbrella post can be made shorter. The unique mechanism of the umbrella of the Calculus structure results in an operation sequence which is opposite to the mechanism of the conventional umbrellas: the umbrella of the Calculus structure is opened by being pulled down, and closed by being released upwards. Considering this, the umbrella post of the Calculus structure is preferably telescoped in stages (as shown in
c. Different Ways of Fixing the Tail End
For other umbrella post implementations than the umbrella post that can be telescoped in stages, how the tail end 206 of the string is fixed properly is critical to feasibility of the Calculus structure. In principle, any way or device that can prevent loose of the string 204 that has been pulled tight can be adopted:
(1) The simplest way is as shown in
(2) For those people who still hold on to some conventional ways to operate the umbrella, the tail end 206 of the string may be tied twice to form a circle therebetween and then an elastic protrusion that can be pressed down is designed so that the circle is hooked to the protrusion when the protrusion is not pressed down. Then, when the umbrella is opened, the tail end 206 of the string is pulled tight to such an extent that the circle is hooked by the protrusion, and when the umbrella is to be closed, the protrusion is pressed down to release the tail end 206 of the string to have the umbrella decomposed. Thus, the umbrella can be opened and closed just like a conventional umbrella.
(3) If the slit 212 on the joint component 211 is not appreciated, a circle may be formed through tying the tail end 206 of the string as in the previous example so that when the string is pulled tight, the circle is just drawn out of the handle joint component 211 and then a small strip is inserted through the circle to fix the tail end 206 of the string, and the small strip may be tied by a short string to the handle joint component 211 for convenience of use.
(4) For further improvement on auto-operations of the umbrella, reef structures identical to an automatic tape measure can be used. Specifically, the reef structure is installed in the handle joint component 211 and joined with the tail end 206 of the string. A button may be provided for the reef structure so that the reef structure is retracted once the button is pressed. Thus, the umbrella can be opened by pressing down the button to pull tight and expand the framework. While closing the umbrella, it requires applying a little force to extend the reef structure into a pulled state to loose the whole framework. When the umbrella is to be opened again, the button is pressed down to automatically open the umbrella, and so on. This provides a feeling of a conventional automatic umbrella.
Advantages:
(1) Almost all articles adopting the Calculus structure of the present invention have the advantages of being able to be accommodated quickly and conveniently, having a small volume and a light weight, and being easy to be carried or handled, and being able to be assembled quickly and conveniently, so this will not be further described in other application unless it is to be emphasized. The umbrella of this example has the advantages of being able to be kneaded arbitrarily when the frame is released, having a very small volume and a very light weight, and being easy to be carried about (it is even possible to produce a pocket umbrella that can be put into a pocket of the clothes).
(2) It is possibly, in history, the first umbrella having nothing around the umbrella post when the umbrella is opened, so the available space inside the umbrella is much larger than conventional umbrellas and the umbrella post can be shortened remarkably.
(3) It is simple in structure, and will almost never fail except for possible wear of the string, so generation of wastes is reduced. Even if it fails, it is possible to be repaired by the user himself.
(4) The umbrella can be made of completely nonmetal materials and become safer to use.
(5) Thanks to the aforesaid anti-fracture property of the Calculus structure, the umbrella provides an excellent wind-resistant capability and eliminates the risk of outward flaring or disintegration of the umbrella surface.
(6) When the umbrella is closed, the dry portion will face outwards to prevent wetting of the user's body or clothes.
(7) The closed umbrella that becomes softy can be passed through a small gap, so it is convenient to open and close the umbrella indoors or within a car to prevent exposing the user to the rain or the sunlight.
(8) The manufacturing cost of the umbrella is comparatively low.
(9) The umbrella surface may be formed into various shapes, and a square umbrella outperforms a conventional arc-shaped umbrella in terms of the rain sheltering performance.
Disadvantages:
(1) The umbrella fabric becomes softy when the umbrella is closed, and users who have been accustomed to the conventional umbrellas might be not accustomed to this at the beginning particularly when the umbrella post is also made of a Calculus structure.
(2) All structures except for the umbrella fabric are made of lightweight plastic materials, which is unfavorable for environmental protection. However, fortunately, the umbrella is less liable to damage, which can reduce production of inorganic wastes.
2. Tents
Tents adopting the Calculus structure of the present invention can easily be made to be square like a house (as shown in
Unlike the umbrella, no post is used in the tent, so the structure is even simpler. The cascading strings (correspond to the cascading parts) can be pulled or released directly from the top or routed along two crossed paths to two respective tail ends to fix the whole tent framework at the post feet outside the tent (as shown in
In this embodiment, the top operated tent start ends 505 and the bottom operated tent start ends 515 correspond to the aforesaid start end 105, and the top operated tent tail ends 506 and the bottom operated tent tail ends 516 correspond to the aforesaid tail end 106.
By adopting the Calculus structure of the present invention in a tent, it takes huge advantage that a tent of composite forms for additional functions or purposes can be created by simply one framework and one operation (as shown in
Advantages:
(1) The structure becomes significantly simpler and more lightweight.
(2) Both the decomposing process and the composing process require only a single operation (at most two operations), and can be accomplished easier and more quickly.
(3) The tent can be easily formed into a square shape having a wider interior space, and can also be formed into any desired shape by changing the joint components at the corners.
(4) Only one framework is required for a composite tent.
(5) The cost is likely to be lower.
Disadvantages:
(1) If the unit components and the joint components are made of plastic, care shall be taken to keep the tent from stress during the storage, and otherwise, the plastic components could be broken to inhibit the normal shaping during the erection.
3. Sun shades or sun shelters, room dividers in exhibition places, marquees of circus troupes, yurts or the like.
The sun shades are similar in structure to the umbrella except that they have a much larger size and the umbrella post shall extend to the ground; the sun shelters, which are shaped like a half of a tent without the four sidewalls, also have the similar constructions. In terms of the advantages and disadvantages, the sun shades conventionally having a large volume can now be carried on the car during the touring due to the significantly reduced accommodation volume (especially the umbrella post that can be instantly shrunk significantly); the sun shelters are often arranged in rows on the beach or in large-scale activities, and by adopting the Calculus structure of the present invention, both the decomposing and composing require only one action of pulling or releasing, and this will significantly reduce the time to compose and, after use, decompose the sun shelters to save a large amount of labor and time costs. For the room dividers in the exhibition places, adopting the Calculus structure of the present invention can also significantly reduce the time to compose and, after use, decompose the room dividers.
The marquees of circus troupes and the yurts are also decomposed and composed frequently, and adopting the Calculus structure will greatly save the time and the labor, bring about more conveniences and ease the burden in the migrating process, and especially, will greatly improve the safety of the top structure of the marquees of circus troupes.
4. Walking Sticks and Camera Tripods
These are another two examples possibly to utilize the Calculus structure of the present invention. The implementations of both are easy. Somehow the resulting advantages over the conventional ones are not so significant and obvious.
II. FURNITURE1. Indoor (Household) Furniture
Furniture to which the framework is applicable is nothing but desks, chairs, beds, cabinets or the like. Distinct from the aforesaid shelters, most of household furniture is of a square structure and is required to bear different loads. As being observed, the common element structure among the desks, chairs and cabinets is a framework of a four-legged desk. Based on the fact, by cascading unit components and joint components into a basic framework module of a four-legged desk in the first place then stacking in vertical or horizontal direction, most of various kinds of household furniture pieces can be obtained.
It is definitely not hard to assemble the frameworks of various kinds of household furniture pieces using the furniture unit components 701 and the furniture joint components 702, while to cascade all these components together using furniture cascading parts 704, and fixing the tail ends is another story. It is not as simple as the way we did in the shelters described above because the furniture pieces are square interlaced structures which will not allow just a single tail end to terminate all the cascading parts. Thus, the key point is how to plan the route of the furniture cascading parts 704 so that the number of the tail ends would be minimized and each tail end would bear even loads to each other to facilitate the pulling and releasing operations thereafter. After researching, we found an optimal cascading part route module for the aforesaid common element structure of a four-legged desk as shown in
In this embodiment, the furniture unit components 701 correspond to the aforesaid unit components 101, the furniture joint components 702 correspond to the aforesaid joint components 102, the furniture cascading parts 704 correspond to the aforesaid cascading part 104, and the tail ends 706 of the furniture cascading parts correspond to the aforesaid tail end 106.
So far, only the framework has been obtained, and next, how planar components are added on the framework composed of the Calculus structure of the present invention will be described. The planar components may be divided into soft ones and hard ones depending on their properties.
a. For chairs and beds on which the human body directly sits or lies, soft planar components 721 such as cloth may be directly used. Of course, it may also be that a hard planar component 722 is firstly placed on a chair or a bed and then a soft mattress is placed thereon. For the way to place the soft planar component 721, reference may be made to the lower right corner of
b. For desks and cabinets on which articles will be placed, hard planar components 722 are appropriately used. The hard planar components 722 may be fabricated to have an edge form that is correspondingly embedded into or by the furniture unit components 701 (please see the upper right view in
2. Outdoor Furniture (for Camping Use)
The camping use furniture is quite same as those of household furniture except the cabinets. However, what is different is that the camping use furniture is for temporary purpose that it focuses more on the conveniences in use. Specifically, the desks and chairs need not be made large, and need not to support too many and too heavy things thereon, so they can be made to have a low structural strength, and preferably, have a light weight and a small accommodation volume and are convenient to be carried on, composed and decomposed. In consideration of this, all the corresponding household furniture may be simplified by adopting the X structure which is the most commonly used in conventional foldable furniture as shown in
3. Furniture LEGO
A set of various unit components, joint components, cascading strings and planar components with many different possibly required specifications can be offered to the customers to assemble themselves the furniture pieces they wish to have. That makes some furniture kind version LEGO. And it could be very useful and joyful.
Supplemental Discussion:
For the last joint component of chairs or beds that should carry the people's weight, high-strength metal materials with a certain thickness shall be chosen to increase the durability of the large stress generated from the fixing of the tail end.
Advantages:
(1) The furniture can be shipped in a package of a significantly reduced volume and, hopefully, a reduced weight too.
(2) The furniture is unnecessary to be formed into a fixed size, but may be optionally adjusted in size.
(3) A same structure can provide diversified products.
(4) The furniture is suitable for use by boarder students because it could be much cheaper than usual household furniture, convenient to move, and reassembled quickly. It is also very suitable for borrowing from each other.
(5) It is applicable even in a small house space for the convenience of being able to be quickly decomposed and replaced anytime into desired furniture for flexible use of the space.
Disadvantages:
(1) It is not recommended to apply the Calculus structure to household furniture that shall bear the people's weight such as chairs and beds because there is the concern of safety unless each component of the whole structure is made sufficiently strong. For camping use furniture pieces, they may be made relatively low with a smaller volume, so the safety level is relatively higher.
III. COMBINED HOUSESTotally different from what described above, combined houses for temporary use at building sites or in disaster areas shall bear much higher loads. In such cases, the components of the calculus structures of the present invention shall of course be made of metal materials and all the building unit components have to comprise an embedding construction, except that the principle of combining the components remains the same (as shown in
In this embodiment, the building unit components correspond to the unit components 101, the building joint components 902 correspond to the joint components 102, the building cascading parts 904 correspond to the cascading part 104, and the tail ends 906 of the building cascading parts correspond to the tail end 106.
Advantages:
(1) The labor and time to compose and decompose the combined house can be significantly reduced to save the cost.
(2) Because the framework can be dispersed, the accommodation volume is smaller than conventional combined houses and more combined houses can be shipped at a time to save the transportation time and cost.
(3) The combined house has an extremely high fracture resistance and is safer to use as long as the components for fixing the tail ends of the building cascading parts are securely joined to the ground and the segmented framework is passed through and supported by bendable and strong cables.
IV. CEILINGS OF HALL OR DOME-LIKE BUILDINGSFor buildings having a ceiling such as sports buildings, sky domes, auditoriums, churches or the like may adopt the Calculus structure of the present invention as a framework of the ceiling. However, the length limit of the suspended framework across the two ends is determined by the load that can be borne by the curved ceiling joint components 172 themselves and the portions that are vertically embedded by the curved ceiling joint components 172 (as shown in
The Calculus structure will provide many benefits to this application, among which the greatest benefit over the conventional structure is the high safety. In the ceiling framework adopting the Calculus structure of the present invention, parts other than the vertical supporting sections at the two ends can become significantly lightweight without the need of using heavy and stiff metal parts as supports, so possibly lightweight materials such as plastic or even high-density Styrofoam of a sufficient thickness can provide sufficient strength when being pulled tight by strings.
Take a plurality of unit components 101 and a cascading part 104 shown in
In this embodiment, the ceiling unit components 171 correspond to the aforesaid unit components 101, the ceiling joint components 172 correspond to the aforesaid joint components 102, and the ceiling cascading parts 174 correspond to the aforesaid cascading part 104.
V. WIND-RESISTANT LIGHT POLES AND TRANSMISSION POLESAs shown in
In this embodiment, the pole body unit components 1001 correspond to the unit component 101, the pole body embedding construction 1003 corresponds to the embedding construction 103, and the pole body cascading parts 1004 corresponds to the cascading part 104.
It shall be noted that, unless the pole bears no load, the unit components assembling the pole shall all comprise an embedding construction preferably in an oblong form (as shown in
When the rescuer is unable to successfully project a cord to the rescuee located at a far distance, the Calculus structure of the present invention can be used. Specifically, a string of unit components are put on the rescue cord until the total length of the unit components becomes equal to the distance between the rescuer and the rescuee, and then the unit components are pulled tight to become a stiff and long rod that can reach the rescuee to successfully deliver the rescue cord. In this way, the rescue can be conducted safely, quickly and successfully, and ensure the safety of both the rescuer and the rescuee. Also, carry-on long rods may be formed of this structure, in which case the long rod can be wound like a cord when being carried on in the wild, and can be pulled tight into a long rod at any time if necessary. The fishing rod is of something special because it has to bear a large pulling force, so a research may be made on whether the pulling string on the rod body can be integrated with the fishing line.
VII. MECHANICAL METAL ARTICLESSome portable foldable mechanical articles, the representative of which is the foldable bicycle, may adopt the Calculus structure of the present invention (in which case steel cables or metal chains must be used as the cascading parts), mainly in the framework portion in the middle of the bicycle body with the tail end being fixed under the seat. However, there is a concern that the appearance of the article is likely to be damaged during the accommodation, so the practicability is not high. If further researches are made, this may also become an option for portable articles that need detachment.
VIII. LEGO IN THE REAL WORLDAs described above in the Furniture section, actually a set of appropriate materials, component sizes and possible joint component shapes that are most commonly used may be designed for each application field so that the user can assemble the components to create an article of their own. That would be exactly like LEGO building blocks in the real world.
IX. COMPREHENSIVE CONCLUSION AND DISCUSSION1. Almost all framework articles can be formed of the Calculus structure of the present invention, from interior articles to exterior ones and from small articles such as umbrellas to huge ones like ceilings of sky domes, let alone those having not been conceived currently. However, not all kinds of articles are suited to be comprised of this structure, and only some kinds of articles (e.g., shelters with a low load thereon) can gain significant benefits from this structure.
2. The diameter, the length, the material strength and the wall thickness of the unit components 101 depend on the load-bearing requirements. If the conditions allow, the smaller the diameter of the unit component 101 is and the lighter its weight is, the higher the application value of the Calculus structure of the present invention will be since both the accommodation volume and the weight will become as small as they can be.
3. The strength of the joint components 102 and the device for fixing the tail end 106 as well as whether the tail end 106 can still pull the whole structure to be very tight after being fixed will determine the feasibility and stability of the article formed of the Calculus structure of the present invention.
4. Huge and long frameworks can be easily formed by using the Calculus structure of the present invention. It is difficult to form such huge and long frameworks integrally. But with the Calculus structure of the present invention, segments are firstly produced and then cascaded. The framework can be made to any length in this way theoretically. Somehow in the real world, the framework would be inevitably partially sagged due to the weight of the long string of unit components 101 itself. However, this could be justified by appropriately increasing the number of unit components 101 comprising an embedding (or embedded) construction 103 or in an alternative way that will be discussed later in the issue #10 of this section.
5. A blocking part 107 (usually a tie of the cascading part) is provided at the start end 105 of the cascading part 104. In consideration of the aesthetic appearance, this end is often disposed on the ground. The opening of the first unit component 101 at the start end may be in the form of a funnel or a goblet of which the diameter decreases in steps (as shown in
6. The difference between the diameter of the cascading part 104 and the inner diameter of the components shall not be too large, and the embedding construction 103 is preferably provided with a guiding corner 123 (as indicated by the circle in
7. When the tail end is to be pulled tight and fixed, it shall be firstly pulled out of the bottom end of the slit 212 in order to plug the tail end into the slit 212 and use the blocking part 107/207 to block it from sliding out of position (as shown in
(1) As indicated by the circle in
(2) Elastic gaskets such as rubber are disposed in the unit components 101 near critical joint components 102 which experience substantial force in the whole structure (the gaskets cannot be disposed in the joint components directly because of the embedding construction thereof) so that the released length of the tail end is offset by the elastic gaskets. If all structural components have an embedding construction, then the only solution is to fabricate special components comprising an embedding construction made of an elastic material (the material shall not be too softy), or to fix the tail end by the way shown in
(3) To ensure the tightness of the whole structure after the tail end 106 is fixed, the position of the blocking part may be adjusted after the tail end 106 has been plugged in. By use of the blocking plate 130 of a shape shown in
8. Because articles formed of the Calculus structure of the present invention tend to present a monotonous or even inaesthetic appearance, the colors or shapes of the unit components 101 and the joint components 102 may be changed to improve the variations and aesthetic appearance of the articles (as shown in
9. The unit components and the joint components are not necessarily of a round pipe form, but may also be a square flat form as shown in
10. From the experiments we can see for a horizontal string of tightly cascaded unit components 101 having no embedding or embedded construction 103 it will inevitably tend to partially sag due to its own weight, especially at its suspended end as in the aforesaid umbrella or the long rescue rod embodiments or in its middle portion as in the aforesaid ceiling framework of a dome like building, when each unit component 101 is especially short and slim (as shown in
In this embodiment, the two sub-bored unit component 181 corresponds to the aforesaid unit components 101, the second cascading part 184 corresponds to the aforesaid cascading part 104, and the tail end 186 of the second cascading string corresponds to the aforesaid tail end 106.
11. The present invention relies on the geometry and gravity only without consuming any energy source to benefit people's life, it sets a pretty good example to the development of technologies of the next generation.
Claims
1. A calculus structure, comprising a plurality of unit components and a plurality of joint components, wherein the unit components and the joint components are adapted to form a target structure; each end of each of the joint components has a embedding construction or an embedded construction, each of the unit components and the joint components has a bore therein for communication with each other, the bore is adapted to allow a cascading part to pass therethrough so that the unit components and the joint components are cascaded together by the cascading part, and the unit components and the joint components are movable relative to the cascading part so that the unit components and the joint components abut against each other in a cascading order to form the target structure.
2. The calculus structure of claim 1, wherein a start end of the cascading part comprises a first blocking part which is sized to be unable to pass through one of the unit components or of the joint components that is cascaded at the start end.
3. The calculus structure of claim 2, wherein an end of the one of the unit components or of the joint components that is cascaded at the start end has a funneled or stepped bore, and a size of the funneled or stepped bore increases gradually from the inside to the outside, and a width in an inner space of the funneled or stepped bore at an end where the funneled or stepped bore has the maximum size is adapted to completely cover the first blocking part.
4. The calculus structure of claim 2, further comprising a fixing device adapted to fix a tail end of the cascading part so that loosing and sliding of the cascading part is prevented.
5. The calculus structure of claim 4, wherein the tail end of the cascading part comprises a second blocking part which is unable to pass through the fixing device.
6. The calculus structure of claim 1, wherein some of the unit components each has an embedding construction or embedded construction.
7. The calculus structure of claim 1, wherein an end of the cascading part is adapted to connect with a spring.
8. The calculus structure of claim 1, wherein an elastic part is additionally provided between the unit components and the joint components.
9. The calculus structure of claim 1, wherein the cascading part comprises a start end or a tail end, at least one of which is adapted to be directly fixed in position without the need of a blocking part.
10. The calculus structure of claim 1, wherein some of the unit components each has a second bore which is adapted to allow a second cascading part to pass therethrough.
Type: Application
Filed: Jan 7, 2016
Publication Date: Jul 13, 2017
Inventor: Chung-Chien LIN (Keelung)
Application Number: 14/990,563