TWM497720U - Locking equipment - Google Patents

Description

Locking device

The present invention relates to a tool, and more particularly to a locking device made of a thermally induced shape adaptive material.

In recent years, with the advancement of science and technology, human demand for material functions has gradually increased, so new functional materials are one of the hot research topics. Among them, Smart Material is a kind of intelligent material that can change according to the external environment, and can adjust itself and achieve intelligent effect through product design. For example, a fuse is a kind of smart material that can induce current.

Among them, shape memory polymer materials are the most widely studied and used, and the heat-induced shape memory materials have been used for research and development in different industries. The main reason is that the heat-induced shape memory polymer materials have There are many commercial advantages such as easy control of heat source, diversity of style changes and competitive market prices.

The above-mentioned heat-induced shape memory material has an initial shape (initial state) after being shaped, and when the material receives external energy (such as heat energy, electric energy, etc.), the shape thereof may be changed, and if it is removed at this time At the energy, the material can be temporarily deformed (morphed), and then when the same external energy is applied again, the material can be restored to its original shape. The ability to switch between the initial state and the variant is the "shape memory effect."

In the early days, the heat-induced shape memory materials were not related to research and production in China, and were mainly imported. In recent years, the Plastics Center has planned to assist some manufacturers to start the development of smart materials, in order to break away from the unpredictable dilemma. In addition, the current process technology of the heat-induced shape memory material is to construct the initial shape by using conventional plastic molding techniques such as plastic injection, extrusion, and foaming level coating. However, traditional plastic molding must use a mold, and the mold will limit the shape of the plastic molding.

In addition, referring to FIG. 1 , a conventional hand-held screwdriver tool 1 has a cross screwdriver head 2 and a hand grip 3 which can be rotated when the cross screwdriver head 2 is in contact with the thread of the screw a and is closely attached. The grip bar 3 is rotated to screw the screw a into a wall b.

Since there are currently cross-shaped and one-threaded screws on the market, and many manufacturers have introduced anti-theft screws with different threads, users must purchase suitable hand-held screwdriver tools for each type of screw, causing user confusion and how to The conventional hand-held screwdriver tool is combined with the heat-induced shape memory material, and the product of the heat-induced shape memory material can be made into an easily deformable structural shape, which cannot be restricted by the mold, and it is indeed necessary to improve.

In view of the above, the object of the present invention is to provide a locking device suitable for being locked on an object and comprising a female member and a male member which can match the shape of the female member to the female member. The piece is tightly locked to the object.

Another technical means of the present invention is that one of the male member and the parent member or a combination thereof is made of a material of polycaprolactone (PCL).

Another technical means of the novel is that the female member is a close screw.

A further technical means of the novel is that the male member is a single child.

The beneficial effect of the novel is that the plastic molding material is heated to a molten state when the current shape is changed to a molten state. The mother piece or the male piece is manufactured to make the mother piece or the male piece have the characteristics of an adaptive material after being heated, and is used after being cooled by press molding.

901~906‧‧ steps

3‧‧‧Male

31‧‧‧ Holding the subject

32‧‧‧Starter head

4‧‧‧Female parts

41‧‧‧Threaded body

42‧‧‧ screw head

43‧‧‧ texture

44‧‧‧Protective layer

5‧‧‧ hot water

1 is a schematic view of a conventional hand-held screwdriver tool; FIG. 2 is a block diagram showing a first preferred embodiment of the present invention; FIG. 3 is a schematic view of the device, illustrating a second embodiment of the novel locking device The preferred embodiment; and Figure 4 is a schematic view of a third preferred embodiment of the novel locking device.

The details of the related patents and the technical contents of the present invention will be apparent from the following detailed description of the preferred embodiments of the drawings.

It should be noted that, before the detailed description, similar elements are denoted by the same reference numerals.

Referring to FIG. 2, a first preferred embodiment of the present invention includes a preparation step 901, a first heating step 902, a three-dimensional stack forming step 903, a second heating step 904, and a molding step. 905, and a restoration step 906.

First, the preparation step 901 is performed to prepare a plurality of shape memory polymer materials, and the shape memory polymer material is selected from the group consisting of a polyester system, a resin resin system, a polyurethane system, a polyolefin system, a polyamine system, and the like. A combination of the same. The material form can be granular, powder or line. In actual implementation, the type of material must be selected in conjunction with the type of machine used and the purpose of the product.

Traditional plastic materials are composed of linear molecular chains. There is no covalent bond between the molecular chains, so it can be reshaped by heating and melting. The shape memory polymer material used in the present invention is composed of three-dimensional network molecular chains. Since these molecular chains have a three-dimensional structure similar to diamonds, they have properties of being insoluble and incapable of melting, so that low temperature heating cannot be utilized. To change the shape.

In addition, smart materials are also classified into a variety of memory materials such as a thermally induced shape memory polymer, an electroformed shape memory polymer, a photoinduced shape memory polymer, and a chemically induced shape memory polymer. The shape memory polymer material of the first preferred embodiment uses a thermally induced shape memory polymer, and the present invention uses a heat-induced shape memory polymer for use. In actual implementation, other materials may be used, or other intelligent materials may be used. The materials used in combination for various purposes and occasions should not be limited to this.

Then, the first heating step 902 is performed to heat the plurality of thermosensitive shape memory polymer materials to a molten state for binding the molecular chains in the thermotropic shape memory polymer material with a high energy. The molecules in the heat-induced shape memory polymer material in the molten state can move freely, and select a preferred first heating temperature according to different kinds of shape memory polymer materials to give energy which can interrupt the molecular chain thereof, The temperature is about 150 ° C ~ 300 ° C, the energy temperature is too low will cause the molecular chains of the complex molecules can not be broken, and the energy temperature is too high will cause the material to change.

Then, the three-dimensional stack forming step 903 is performed, and a first morph body is constructed by using a 3D lister stack. Preferably, the heater of the first heating step is disposed above the nozzle of the 3D list machine to make the 3D list. The nozzle of the machine can obtain the heat-induced shape memory polymer material in the molten state, and is stacked upwardly from the bottom of the first shape body in a stacking manner, and the heat-induced shape memory polymer is formed during the forming. The molecules in the material are bonded to each other via a covalent bond, such that when the first morphological body is completed, the plurality of molecules of the shape memory polymer material are bonded to each other to form an initial state of the smart material.

In the early days, product manufacturers used shape molds to make products in a plastic injection manner, and the use of molds led to a limitation in the shape of the plastic products. The present invention utilizes the advantages of a 3D list machine that does not use a mold to shape the stack. The first form of the external type conforms to the designer's optimal shape design. In addition, a plurality of voids or support frames can be produced in the product, which has great advantages in product design.

Then, the second heating step 904 is performed to perform low-temperature heating on the cooled first type body. At this time, it is not necessary to use too high temperature for heating, and according to the characteristics of different heat-induced memory materials. Selecting the heating temperature, in the current material, the heating temperature range of the second heating step is 60 ° C ~ 120 ° C, must reach the moving energy of the plurality of molecules between the polymer materials, but the molecular chain is held by the covalent bond Without being interrupted, the complex molecules can move but are bound to each other by their molecular chains, and the heating temperature of the second heating step should not be too high to prevent the molecular chain from being interrupted by the temperature energy.

Preferably, the first preferred embodiment utilizes the fluid properties of water to averagely heat the shape memory polymer material, and the liquid temperature of the water is up to 100 ° C, which is more stable and controllable than other modes of heating. Characteristics, and the heating technology is numerous and mature, such as air heating, infrared heating, etc., and will not be repeated here.

Then, the molding step 905 is performed to press-form the heated first type body into a second type body, and when the first type body of the first preferred embodiment is heated in water of 100 ° C and After being placed for a period of time, the molecules are bound to each other due to the limited binding of the molecular chains, and the first type of body can be directly pressurized to shape the second type body, and the force of pressurization is maintained until When the second type body is cooled and hardened, the second type body can be obtained by releasing the force of the pressurization, and the inventors use the force of the hand to pressurize the first form body to form the second type. Body, in actual implementation, can be shaped by other tools or molds, and should not be limited to this.

Finally, the reducing step 906 is performed, when the second type After the use, the second type body can be heated again at a low temperature, and the heating temperature is the same as the second heating step, so that the heat-induced shape memory material softens but does not reach the molten state, and does not require pressure plastic molding. Shape, the second type of body will change shape because the complex molecular chain pulls back the connected molecules, and after all the molecules return to the position after standing, it will automatically return to the first type body, which is the heat-induced high The characteristics of molecular smart materials.

Referring to FIG. 3, a second preferred embodiment of the present invention is a product formed by the method of the first preferred embodiment, comprising a male member 3 and a shape that can be matched with the male member 3. The female member 4 is assembled together, wherein the male member 3 of the second preferred embodiment is a single body, and includes a handle body 31, and a driver head 32 disposed under the handle body 31. The screwdriver head is made of a thermotropic shape memory polymer material selected from polycaprolactone (PCL) and stacked by using the 3D list machine (not shown), and the 3D is used between the screwdriver head 32. The printing technique of the list machine forms a plurality of small holes (not shown) for changing the shape more easily in the second heating step, and the front end of the first type body of the bit head 32 may be a cross shape, and the actual implementation Actually, it can also be a word or other shape, and should not be limited to this.

The female member 4 is a close-fitting screw, and includes a threaded main body 41, a screw head 42 disposed above the threaded main body 41, and a grain 43 disposed on the screw head 42. Preferably, the texture 43 on the screw head 42 is different from the general word or cross pattern, and cannot be rotated by a general screwdriver. When the male member 3 is used to unscrew the female member 4, the The screwdriver head 32 of the male member 3 is immersed in the hot water 5 to soften the material thereof, and then the softened screwdriver head is pressed against the grain 43 on the screw head 42, so that the screwdriver head 32 of the male member 3 becomes an adaptive The material is such that the shape of the screwdriver head 32 and the shape of the texture 43 on the screw head 42 are tightly combined. When the temperature is lowered, the screwdriver head 32 will be hardened, and the female member 4 can be unscrewed. The plunging head 32 can be automatically reverted to a cross shape by immersing it in hot water.

Referring to FIG. 4, a third preferred embodiment of the present invention is substantially the same as the second preferred embodiment, and the same is not described herein again. The difference lies in the mother. The component 4 further includes a protective layer 44 disposed above the screw head 42. The protective layer 44 is made of a thermal shape memory polymer material of polycaprolactone (PCL), and the male component 3 The driver bit 32 can be made of a metal material and formed into a shape that can be joined to the groove 43 of the screw head 42.

When the female member 4 is to be rotated, the protective layer 44 may be sprayed with hot water to soften the material, and the screwdriver head 32 is pressed down and inserted into the texture 43 to rotate the female member 4. When the protective layer 44 on the female member 4 is in the form of a flat plate in the initial state, the damage of the external force can be prevented, and when the piezoelectric head 32 is pressed down after heating, the shape of the screwdriver head 32 can be deformed, so that the female member 4 is deformed. The protective layer 44 becomes an adaptive material, and the shape of the screwdriver head 32 and the texture 43 is modified so that the driver head 32 and the thread 43 of the screw head 42 can be more encrypted to prevent the mother member 4 from being removed. The condition of a disintegration occurs when the rotation occurs.

According to the above description, the novel locking device does have the following advantages:

First, can form complex shapes

Different from the traditional plastic molding method, the present invention uses the 3D list machine to make a plastic product, and does not need to mold the shape memory polymer material by using a mold, effectively making the heat-induced shape memory material have a complicated first Morphological body.

Second, the effective use of shape memory polymer materials

The utility model utilizes a heat-induced shape memory material to manufacture a screwdriver head of a screwdriver, which can be closely sealed with various special lines after being heated at a low temperature (100 ° C), and even a general cross or a word screw can be rotated without further need to be rotated. Buy a number of special screwdrivers that conform to the shape of the shape.

Third, make the product easy to deform

The 3D list machine can not only manufacture the first type body which cannot be formed by the conventional mold, but also generate a plurality of small holes or support frames during molding, and when it is heated at a low temperature and applied with pressure, it is more easily deformed to form the second type. body.

In summary, the locking device of the present invention does have the technology of plastic molding. The 3D list machine can achieve the first morphological structure that cannot be formed by using the mold without using the mold, and utilizes the heat-induced shape memory material. The characteristic is that after the low temperature heating, pressure can be applied to shape different second morphologies for use in different occasions and purposes, so that the effects of the novel can be achieved.

However, the above is only the three preferred embodiments of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change made by the novel patent application scope and the new description content is Modifications are still within the scope of this new patent.

901~906‧‧ steps

Claims (4)

A locking device adapted to be locked to an object and comprising: a female member; and a male member that can be tightly locked to the object in accordance with the shape of the female member. The locking device of claim 1, wherein one or a combination of the male member and the parent member is made of a material of polycaprolactone (PCL). The locking device of claim 2, wherein the female member is a close screw. The locking device according to claim 3, wherein the male member is a single piece.