TW201927488A - Tool assembly device in which a cooling material is injected into the hollow interior of the handle after the handle is blow molded - Google Patents

Abstract

The invention discloses a tool assembly device comprising a connecting portion, a handle, and a blade. One end of the connecting portion is formed with a slit, and the blade is inserted into the slit of the connection portion to be coupled fixedly. The connecting portion and the handle are integrally formed by blow molding to have a hollow interior. A cooling material has a lower temperature than that of the handle and the connecting portion during blow molding and is injected into the hollow interior of the handle after the handle is blow molded. The handle can be quickly cooled by the contact of the cooling material with the surface of the hollow interior. Not only the connecting portion is quickly coupled with the blade, but also the present invention has the effect of shortening the manufacturing time and saving materials, thereby reducing the cost. In addition, the cooling material can have a weighting effect on the handle, so that the user has a hand feeling with the weight and can be improved the accuracy during operation.

Description

Tool combination device (2)

The present invention relates to the field of a tool, and more particularly to a tool assembly device (2) for a doctor blade.

The applicant's patent application for the "tool combination device" previously proposed by the applicant is mainly aimed at solving the following shortcomings in the manufacture of the conventional blade structure with a hard plastic grip: 1. Directly with the blade during injection molding The solid shank structure of the shank (melt) is combined, since the solid shank should have a certain thickness for easy grip, but the solid shank has a longer cooling time after being combined with the blade body. The manufacturing process time of the product will be lengthened, resulting in the disadvantage of increasing the unit cost; 2. Because the solid shank is made of hard plastic, the material consumption is more, and the material consumption and material cost are increased; 3. In order to cool the mold quickly and use water as the heat sink, the whole body of the cutter is immersed in water, which easily leads to the loss of oxidation and rust.

The prior invention patent of the "tool combination device" mainly comprises a connecting portion, a grip and a blade; a radial slit is formed through one end of the connecting portion; and is fixed by a radial slit of the blade insertion connecting portion; The handle is integrally formed by blow molding, or the connecting portion is made by injection molding and the handle is made by blow molding, or the connecting portion and the handle are combined by ultrasonic welding, etc.; The hollow grip structure is molded in one piece to achieve material reduction and cost, as well as shortening cooling time and manufacturing man-hours.

However, the integral hollow hollow grip structure can be cooled faster than the conventional solid shank solid plastic structure; however, because the hollow grip structure will cause the high temperature inside the hollow to not fall easily after molding, if not With the aid of other heat dissipation mechanisms, it is difficult to significantly speed up the cooling rate, and it is not easy to effectively shorten the manufacturing man-hours of the product.

Therefore, how to solve the above-mentioned patents because the hollow grip structure will make the hollow interior lack the auxiliary heat dissipation mechanism after molding, so that the cooling speed cannot be obviously accelerated, and the manufacturing defects such as the manufacturing time can not be effectively shortened. The invention is the difficult point to solve in this case.

In order to solve the above problems, the main object of the present invention is to provide a tool assembly device (2) integrally formed by a blow molding of a connecting portion and a handle to have a hollow interior, and the cooling material has a lower grip and a connection. The temperature at the time of blow molding is injected into the hollow interior of the handle after blow molding, and the contact between the temperature-lowering material and the surface of the hollow interior allows the handle to be rapidly cooled, not only quickly and firmly bonded to the blade, but also effectively shortens the manufacturing. Working hours and material savings are achieved with better economic benefits from cost reduction.

According to the second object of the present invention, the weight-reducing material can form a weighting effect inside the handle, so that the user has a weight feeling when holding the hand, so as to improve the accuracy of the user's force control when the grip is used for construction. .

Another object of the present invention is that the temperature reducing material injected into the hollow interior of the handle can further provide structural support of the handle inside the hollow body to improve the structural strength of the handle to avoid deformation, which is achieved with multiple uses.

In order to achieve the above object, the present invention provides a tool assembly device (2) comprising a handle and having a connecting portion having a mouth and The handle and the connecting portion thereof are blow molded to have a hollow interior; a cooling material is located in the hollow interior of the handle, and the temperature reducing material is located at the time of blow molding of the handle and has a lower blow molding than the handle and the connecting portion a blade having a blade portion and a tooth portion, and inserting the tooth portion of the blade into the slit of the connecting portion when the connecting portion of the handle is blow molded, and clamping the connecting portion and the blade with an auxiliary jig The tooth portion is firmly combined, and the auxiliary fixture is removed after the temperature of the hollow material is brought into contact with the surface of the hollow interior, and the connection portion of the handle is quickly and firmly bonded to the tooth portion of the blade. The cooling material forms a weighting effect with a heavy hand when gripping and holding in the hollow interior of the handle, so as to improve the accuracy of the user's force control when the grip is used for construction.

In a second embodiment of the tool assembly device (2) of the present invention, a handle is blow molded and has a hollow interior; a cooling material is located in the hollow interior of the handle, and the temperature reducing material is located in the handle blow molding Having a temperature lower than the temperature at which the grip and the joint are blow molded; an injection molded joint having a slit; and a blade having a blade portion and a tooth portion; wherein the joint portion The inner portion has at least one barb block, and one end of the handle has a convex portion, and the outer side wall ring of the convex portion is provided with a barb ring, the convex portion is inserted into the inner portion of the connecting portion, and the barb block and the barb ring are hooked to each other. The tooth portion of the blade is inserted into the slit of the connecting portion, and the handle is quickly cooled by the contact of the temperature-lowering material with the surface of the hollow inner portion, and the slit of the connecting portion of the grip is quickly and firmly coupled to the tooth portion of the blade, the temperature reducing material The weight inside the hollow interior of the handle forms a weighting effect when gripping and applying, so as to improve the accuracy of the user's force control when the grip is used for construction.

A third embodiment of the tool assembly device (2) of the present invention includes: a handle formed by blow molding to have a hollow interior and a receiving portion at one end of the handle, and a barb in the receiving portion a cooling material located in the hollow interior of the handle, and The cooling material is located at a temperature lower than the temperature at which the handle and the connecting portion are blow molded when the handle is blow molded; and an injection molded connecting portion having a port at one end and a barb block at the opposite end And a blade having a blade portion and a tooth portion; thus, when the connecting portion is placed in the receiving portion of the handle, the barb block is fixed on the barb block of the handle and is fastened to each other And the tooth portion of the blade is inserted into the slit of the connecting portion, the contact between the temperature-lowering material and the surface of the hollow interior causes the grip to be rapidly cooled, and the tooth portion and the inner wall surface of the slit are quickly engaged and fixed, and the temperature-reducing material forms a grip in the hollow interior of the grip. The counterweight effect with a weight feel when applying the hand is used to improve the accuracy of the user's force control when the grip is used for construction.

100-102‧‧‧Tool combination device

1‧‧‧Connecting Department

13‧‧‧ incision

14‧‧‧barb block

15‧‧‧ concave ring groove

16‧‧‧Inner ring

2‧‧‧Handle

21‧‧‧ convex

22‧‧‧ Barb ring

23‧‧‧Snap collar

24‧‧‧Snap groove

25‧‧‧ 容部

26‧‧‧ Barbs

27‧‧‧ hollow interior

3‧‧‧blade

31‧‧‧Knife Department

32‧‧‧ teeth

4‧‧‧Dehumidifying materials

The first figure shows a schematic view of the appearance of the first embodiment of the present invention.

The second drawing shows an enlarged schematic cross-sectional view of a first embodiment of the present invention.

The third figure shows a schematic cross-sectional view of the present invention using steel balls as a temperature reducing material.

The fourth figure shows a schematic cross-sectional view of the present invention using sand as a temperature reducing material.

Figure 5 is an exploded perspective view showing a second embodiment of the present invention.

Figure 6 is a cross-sectional view showing a second embodiment of the present invention.

Figure 7 is an exploded perspective view showing a third embodiment of the present invention.

Figure 8 is a cross-sectional view showing a third embodiment of the present invention.

Referring to the first to fourth figures, the tool assembly device 100 of the present invention comprises a handle 2 with a connecting portion 1, a blade 3 and a cooling material 4, wherein the handle 2 is blow molded and Having a hollow interior 27; a cooling material 4 is located in the hollow interior 27 of the handle 2, the cooling material position 4 has a lower temperature than the grip 2 and the joint portion 1 during blow molding; and the temperature reducing material 4 may be water or oil as shown in the second figure, or may be the steel ball shown in the third figure, and may be the fourth The sand material shown in the figure. When the handle 2 is blow molded

The connecting portion 1 simultaneously forms a plurality of ports 13 during blow molding.

Referring to the first to fourth figures, the related drawings of the first embodiment of the present invention are shown. In the first embodiment of the tool assembling device 100 of the present invention, the connecting portion 1 and the handle 2 are integrally formed by blow molding. .

The blade 3 has a blade portion 31 and a tooth portion 32. One end of the blade portion 31 is connected to the tooth portion 32, and the tooth portion 32 is inserted into the slit 13 of the connecting portion 1, and since the tooth portion 32 is inclined toward the blade portion 31 and outward. Therefore, the tooth portion 32 is fixedly engaged with an inner wall surface of the slit 13; wherein the blade 3 is inserted into the slit 13 of the connecting portion 1 of the grip 2 when the grip 2 is blow molded, and then an auxiliary jig (not shown). This is a commonly used jig, so it will not be described again. The connecting portion 1 and the tooth portion 32 of the blade 3 are clamped to be firmly combined, and the handle 2 is quickly cooled by the contact of the temperature reducing material 4 with the surface of the hollow interior 27. That is, the auxiliary jig is removed, so that the connecting portion 1 of the grip 2 is quickly and firmly coupled to the tooth portion 32 of the blade 3.

According to the above configuration, not only is the assembly simple, but also the joint portion 1 and the grip 2 are integrally molded by blow molding during production, so that it is not only convenient to manufacture, but also can save a large amount of plastic materials and reduce costs; The cooling material 4 allows the grip 2 to be rapidly cooled, which can significantly accelerate the cooling rate and effectively shorten the manufacturing man-hour of the product.

Moreover, regardless of whether the cooling material 4 is made of water, oil, steel or sand, the weight of the handle 2 can be formed after the combination of the tool assembly 100 is completed, and the weight feel can be further achieved when the user holds the application. In order to improve the accuracy of the user's force control when the grip 2 is used for construction.

Please refer to the fifth to sixth figures again, showing a related example of the second embodiment of the present invention; in the second embodiment of the tool assembling device 101 of the present invention, the connecting portion 1 is made by injection molding, and the handle is 2 is made by blow molding to have a hollow interior 27, which are different members.

A temperature reducing material 4 is located in the hollow interior 27 of the handle 2, which has a temperature lower than that of the handle 2 and the joint portion 1 during blow molding.

In addition, the inside of the connecting portion 1 has at least one barb block 14 (this embodiment is illustrated by two figures, but not limited thereto), and one end of the handle 2 has a convex portion 21, and the outer side of the convex portion 21 The wall ring is provided with a barb ring 22, and the convex portion 21 is inserted into the interior of the connecting portion 1, and is fastened to each other by the barbs 14 and the barb ring 22.

At the same time, the blade 3 has a blade portion 31 and a tooth portion 32. One end of the blade portion 31 is connected to the tooth portion 32, and the tooth portion 32 is inserted into the slit 13 of the connecting portion 1, and the tooth portion 32 is inclined toward the blade portion 31 and outward. Therefore, the tooth portion 32 is engaged with an inner wall surface of the slit 13 and fixed.

With the above structure, since the connecting portion 1 is made by injection molding, the grip 2 is made by blow molding, which is not only convenient to manufacture, but also saves materials to reduce cost, and further borrows the temperature material 4 and the hollow interior. The surface contact of 27 causes the grip 2 to cool rapidly, so that the slit 13 of the joint 1 of the grip 2 is quickly and firmly bonded to the tooth portion 32 of the blade 3; and the temperature reducing material 4 is formed in the hollow interior 27 of the grip 2 The user can hold the weighting effect with a heavy hand when applying the hand, so as to improve the accuracy of the user's force control when the grip 2 is used for construction.

The assembly can be prevented from being detached from the handle 2 by the excessive force applied during the use of the blade 3, that is, the connection strength between the connection portion 1 and the handle 2 can be enhanced.

Referring to FIG. 7 to FIG. 8 again, the related drawings of the third embodiment of the present invention are shown. In the third embodiment of the tool assembling device 102 of the present invention, the connecting portion 1 is also made by injection molding, and the grip is The shank 2 is made of a hollow interior 27 by blow molding, and the two are different members.

A cooling material 4 is located in the hollow interior 27 of the handle 2, the temperature lowering material 4 has a lower temperature than the grip 2 and the joint portion 1 during blow molding; further, the connecting portion 1 has a mouth 13 and is located at the opposite end The barb block 14 (illustrated by the second barb block 14 in the present embodiment, but not limited thereto); the handle 2 has a hollow interior 27 and a receiving portion 25 at one end of the handle 2 And the receiving portion 25 has a barb portion 26 therein, so that when the connecting portion 1 is placed in the receiving portion 25 of the handle 2, the barb block 14 is locked on the barb portion of the handle 2 26 and fixed to each other.

At the same time, the blade 3 has a blade portion 31 and a tooth portion 32. One end of the blade portion 31 is connected to the tooth portion 32, and the tooth portion 32 is inserted into the slit 13 of the connecting portion 1, and the tooth portion 32 is inclined toward the blade portion 31 and outward. And the contact between the temperature-reducing material 4 and the surface of the hollow interior 27 causes the handle 2 to be rapidly cooled, so that the inner wall surface of the slit 13 of the connecting portion 1 is quickly engaged with the tooth portion 32 and tightly fitted; and the temperature-reducing material 4 is in the grip 2 The hollow interior 27 forms a weighting effect that allows the user to have a heavy hand when gripping, and is used to improve the accuracy of the user's force control when the grip grip 2 is used for construction.

As described above, since the connecting portion 1 is made by injection molding, the grip 2 is made to have a hollow interior 27 through blow molding, and the cooling material 4 has a lower blow than the grip 2 and the joint portion 1 The temperature at the time of molding is injected into the hollow interior 27 of the grip 2 after the grip 2 is blow molded, and can surely break through the current scraper structure. The difficulties and shortcomings in the development of the technology are achieved, and the following advantages are achieved:

1. With the above structure, the contact between the temperature-lowering material 4 and the surface of the hollow interior 27 allows the grip 2 to be rapidly cooled, not only quickly and stably combined with the blade 3, but also effectively shortens the manufacturing time and material saving, thereby achieving a cost reduction. Good economic benefits.

2. In addition, the cooling material 4 can form a weighting effect inside the handle 2, and has a weight feeling when the user holds the holding, so as to improve the accuracy of the user's force control when the grip 2 is used for construction. .

3. Moreover, the temperature reducing material 4 injected into the hollow interior 27 of the handle 2 can in turn provide the handle 2 to support the hollow interior 27 to improve the structural strength of the handle 2 to avoid deformation.

While the foregoing is directed to the various embodiments of the present invention, further or further embodiments of the present invention may be devised without departing from the basic scope thereof, and the basic scope thereof is defined by the following claims. Although the present invention has been explained in connection with the preferred embodiments, it is not intended to limit the invention. It should be noted that many other similar embodiments can be constructed in accordance with the teachings of the present invention, which are within the scope of the present invention.

Claims (6)

A tool assembly device (2) comprising: a handle having a connecting portion, the connecting portion having a plurality of ports, and the handle and the connecting portion thereof are blow molded and have a hollow interior; a cooling material Located in the hollow interior of the handle, and the temperature reducing material is located at a temperature lower than the temperature at which the handle and the connecting portion are blow molded when the handle is blow molded; a blade has a blade portion and a tooth portion, and is made in the handle When the connecting portion is blow-molded, the tooth portion of the blade is inserted into the slit of the connecting portion, and the connecting portion of the connecting portion and the tooth portion of the blade are firmly fixed by an auxiliary jig, and the temperature is fixed to contact with the surface of the hollow inner portion. After the handle is rapidly cooled, the auxiliary jig is removed, and the connecting portion of the handle is quickly and firmly coupled to the tooth portion of the blade, and the temperature reducing material has a weight feeling when it is formed in the hollow interior of the handle. The counterweight effect is used to improve the accuracy of the user's force control when the grip is used for construction. The tool assembly device (2) according to the first aspect of the invention, wherein the temperature reducing material is any one of water, oil, steel ball and sand material. A tool assembly device (2) comprising: a handle for blow molding and having a hollow interior; a cooling material located inside the hollow of the handle, and the temperature reducing material is lower than the grip when the handle is blow molded a temperature at which the connecting portion is blow molded; an injection molded joint portion having a slit; and a blade having a blade portion and a tooth portion; wherein the inside of the connecting portion has at least one barb block One end of the handle has a convex portion, and the outer side wall ring of the convex portion is provided with a barb ring, and the convex portion is inserted into the inner portion of the connecting portion, and each barb block and the barb ring are hooked and fixed to each other, and the tooth portion of the blade is inserted. a cut in the joint, The handle is quickly cooled by the contact of the temperature-lowering material with the surface of the hollow interior, and the slit of the connecting portion of the handle is quickly and firmly coupled to the tooth portion of the blade, and the temperature-reducing material has a grip when the hollow interior of the grip is formed. The counterweight effect of the weight feel is used to improve the accuracy of the user's force control when the grip is used for construction. The tool assembly device (2) according to claim 3, wherein the temperature reducing material is any one of water, oil, steel ball and sand material. A tool assembly device (2) comprising: a handle formed by blow molding and having a hollow interior and a receiving portion at one end of the handle, and the receiving portion has a barb portion; a cooling material is located at the grip a hollow interior of the handle, and the temperature reducing material is located at a temperature lower than the temperature at which the handle and the connecting portion are blow molded when the handle is blow molded; and an injection molded joint having a mouth at one end, and a barb block at the opposite end; and a blade having a knife portion and a tooth portion; thus, the barb block is fixed to the barb of the handle when the connecting portion is placed in the receiving portion of the handle The block is fixed to each other by a hook; and the tooth portion of the blade is inserted into the slit of the connecting portion, and the contact between the temperature-lowering material and the surface of the hollow interior causes the grip to be rapidly cooled, and the tooth portion and the inner wall surface of the slit are quickly engaged and fixed, and the temperature reducing material is fixed. The weight inside the hollow interior of the handle forms a weighting effect when gripping and applying, so as to improve the accuracy of the user's force control when the grip is used for construction. The tool assembly device (2) according to claim 5, wherein the temperature reducing material is any one of water, oil, steel ball and sand material.