TWI711515B - Tool combination device (two) - Google Patents

Abstract

The present invention discloses a tool combination device (2), including a connecting part, a handle, and a blade; An incision is formed at one end of the connecting part; the blade is inserted into the incision of the connecting part to be combined and fixed; the connecting part and the handle are integrally formed by blow molding to have a hollow interior, and the cooling material is lower than the handle and the connecting part by blow molding It is injected into the hollow interior of the handle after the handle is blow-molded, and the handle is quickly cooled by the surface contact of the cooling material and the hollow interior, which not only quickly and firmly combines with the blade, effectively shortens the manufacturing time and saves The effect of the material reduces the cost; in addition, the cooling material can further form a counterweight effect on the handle, so that the user has a weight feel when holding and improving the accuracy of construction.

Description

Tool combination device (2)

The present invention relates to the related field of a tool, in particular to a tool assembly device (2) of a scraper.

The applicant’s previous “tool assembly device” invention patent application was mainly aimed at solving the following shortcomings in the manufacture of the conventional scraper structure with hard plastic grips: 1. Directly with the blade body during injection molding The plastic solid handle structure formed by the combination of the shank (fusion), because the solid handle should have a certain thickness to be easy to hold, but this solid handle has a longer cooling time after it is combined with the blade. As a result, the manufacturing process time of the product will be lengthened, resulting in the disadvantage of an increase in unit price; 2. Because the solid handles are made of hard plastic, the material is consumed more, and the material consumption and material cost are increased; 3. When water is used as heat dissipation for rapid cooling of the mold, the whole body of the tool is immersed in water, which will easily cause loss of oxidation and rust.

The previous invention patent of the "tool combination device" mainly includes a connecting part, a handle, and a blade; one end of the connecting part is formed with a radial cut; and the blade is inserted into the radial cut of the connecting part to be combined and fixed; The handle is integrally formed by blow molding, or the connection part is made by injection molding and the handle is made by blow molding, or the connection part and the handle are combined by ultrasonic welding; it can be formed by blowing Plastic and integral molding hollow handle structure to achieve material reduction and consumption, and shorten cooling time and manufacturing man-hours.

However, although the hollow handle structure is formed by one piece, the material reduction can be faster than the conventional solid plastic structure of the solid knife handle; but the hollow handle structure will make the high temperature inside the hollow not easy to drop after it is formed. With the aid of other heat dissipation mechanisms, it is still difficult to significantly accelerate the cooling rate, and it is difficult to effectively shorten the manufacturing time of the product.

Therefore, how to innovate against the shortcomings of the above-mentioned previous patent because the hollow handle structure will lack auxiliary heat dissipation mechanism inside the hollow after molding, so that the cooling rate cannot be significantly accelerated, and the manufacturing time of the product cannot be effectively shortened. Invention is the difficult point that this case intends to solve.

In order to solve the above problems, the main purpose of the present invention is to provide a tool assembly device (2), by which the connecting part and the handle are integrally formed by blow molding to have a hollow interior, and the cooling material is lower than the handle and the connection The temperature during blow molding is injected into the hollow interior of the grip after the grip is blow-molded. The grip is quickly cooled by the contact between the cooling material and the surface of the hollow interior, which not only quickly and firmly combines with the blade, but also effectively shortens the manufacturing Working hours and saving materials are achieved with better economic benefits of reducing costs.

The second purpose of the present invention is to use the cooling material to form a counterweight effect inside the handle, so that the user has a weight feeling when holding it, so as to improve the accuracy of the force control when the user holds the handle. .

Another object of the present invention is that the cooling material injected into the hollow interior of the handle can further provide structural support for the handle inside the hollow, so as to improve the structural strength of the handle to avoid deformation, and achieve multiple uses.

In order to achieve the above objective, the present invention provides a tool assembly (2), which includes a handle and a connecting portion with a notch, and the handle and its connecting portion are blow-molded to have A hollow interior; a cooling material is located in the hollow interior of the handle, and the cooling material is located in the handle and has a lower temperature than the handle and the connecting part during blow molding; a blade has a knife part and a tooth part, and When the connecting part of the handle is blow-molded, the tooth part of the blade is inserted into the incision of the connecting part, and an auxiliary jig is used to clamp the connecting part and the tooth part of the blade to be firmly combined, and the cooling material After contacting the surface of the hollow interior to quickly cool the handle, the auxiliary jig is removed, and the connecting part of the handle is quickly and firmly connected to the tooth part of the blade. The cooling material forms a holding tool in the hollow interior of the handle. The weighting effect with a weight feeling when holding it is used to improve the accuracy of force control when the user holds the handle for construction use.

In the 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 cooling material is located in the blow molding of the handle The temperature is lower than the temperature of the handle and the connecting part during blow molding; a connecting part formed by injection molding, the connecting part has a notch; and a blade with a knife part and a tooth part; There is at least one barb block inside, one end of the handle has a protruding part, the outer wall ring of the protruding part is provided with a barb loop, the protruding part is inserted into the inside of the connecting part, and each barb block and the barb loop are mutually clasped and fixed , The tooth part of the blade is inserted into the incision of the connecting part, and the cooling material is contacted with the surface of the hollow interior to quickly cool the handle, and the incision of the connecting part of the handle is quickly and firmly connected to the tooth part of the blade, the cooling material In the hollow interior of the grip, a weighting effect with a weight feeling during gripping and handling is formed, so as to improve the accuracy of force control when the user holds the grip during construction and use.

In the third embodiment of the tool assembly device (2) of the present invention, it includes: a handle is blow-molded to have a hollow interior and an accommodating portion at one end of the handle, and the accommodating portion has A barb portion; a cooling material located in the hollow interior of the handle, and the cooling material is located in the handle blow molding has a lower temperature than the handle and the connecting part when blow molding; a connection part by injection molding, the The connecting part has a notch at one end and a barb block at the opposite end; and a blade with a knife part and a tooth part; in this way, the connecting part can be inverted when it is placed in the receiving part of the handle The hook block will be clamped on the barb block of the handle and fastened with each other; and the teeth of the blade are inserted into the incision of the connecting part, and the handle is quickly cooled by the contact between the cooling material and the hollow inner surface, and the teeth and the incision The inner wall surface is quickly snapped and fixed, and the cooling material forms a weight effect in the hollow interior of the handle, which has a weight and feel when gripping, so as to improve the accuracy of force control when the user holds the handle.

100-102: Tool combination device

1: connecting part

13: incision

14: Barb block

15: concave ring groove

16: inner convex ring

2: grip

21: Convex

22: barb loop

23: buckle convex ring

24: buckle groove

25: Housing Department

26: Barb

27: Hollow interior

3: Blade

31: Knife Department

32: Teeth

4: Cooling material

The first figure is a schematic diagram showing the appearance of the first embodiment of the present invention.

The second figure is an enlarged schematic view showing the cross-sectional part of the first embodiment of the present invention.

The third figure is a schematic cross-sectional view showing the use of steel balls as the cooling material of the present invention.

The fourth figure is a schematic cross-sectional view showing the use of sand as the cooling material of the present invention.

The fifth figure is an exploded schematic diagram showing a second embodiment of the present invention.

The sixth figure is a schematic cross-sectional view showing the second embodiment of the present invention.

The seventh figure is an exploded schematic diagram showing a third embodiment of the present invention.

The eighth figure is a schematic cross-sectional view showing the third embodiment of the present invention.

Please refer to FIGS. 1 to 4 at the same time. The tool assembly device 100 of the present invention includes a handle 2, a blade 3, and a cooling material 4 with a connecting portion 1, wherein the handle 2 is blow molded and It has a hollow interior 27; a cooling material 4 is located in the hollow interior 27 of the handle 2, and the cooling material 4 has a temperature lower than the temperature of the handle 2 and the connecting portion 1 during blow molding; and the cooling material 4 can be the second figure The water and oil shown can also be the steel balls shown in the third figure, or the sand materials shown in the fourth figure. During blow molding of grip 2

The connecting portion 1 simultaneously forms a cutout 13 during blow molding.

Please refer to the first to fourth figures, which show related illustrations of the first embodiment of the present invention; in the first embodiment of the tool assembly 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. The tooth portion 32 is inserted into the cutout 13 of the connecting portion 1. Since the tooth portion 32 is inclined toward the blade portion 31 and outward, Therefore, the tooth portion 32 is occluded and fixed with an inner wall surface of the notch 13; wherein the blade 3 is inserted into the notch 13 of the connecting portion 1 of the handle 2 when the handle 2 is blow-molded, and an auxiliary jig (not shown, This is a commonly used jig, so I won’t repeat it.) Clamp the connecting part 1 and the tooth part 32 of the blade 3 to make it firmly combined, and use the cooling material 4 to contact the surface of the hollow interior 27 to quickly cool the handle 2 That is, the auxiliary jig is removed, so that the connecting portion 1 of the handle 2 can be quickly and firmly connected to the tooth portion 32 of the blade 3.

With the above-mentioned structure, not only the assembly is simple, but also because the connecting part 1 and the handle 2 are integrally formed by blow molding during production, it is not only convenient to manufacture, but also can save a lot of plastic The rubber material reduces the cost; in addition, the rapid cooling of the handle 2 by the cooling material 4 can significantly increase the cooling rate and effectively shorten the manufacturing time of the product.

Moreover, regardless of whether the cooling material 4 uses water, oil, steel balls or sand materials, it can form a counterweight effect on the handle 2 after the tool assembly device 100 is assembled, thereby further achieving a weighty feel when the user holds it. , In order to improve the accuracy of force control when the user holds the handle 2 for construction use.

Please refer to Figures 5 to 6 in addition, which show related illustrations of the second embodiment of the present invention. In the second embodiment of the tool assembly device 101 of the present invention, the connecting portion 1 is made by injection molding, and the handle 2 is made by blow molding to have a hollow interior 27, and the two are different components.

A cooling material 4 is located in the hollow interior 27 of the handle 2, and the temperature of the cooling material 4 is lower than the temperature of the handle 2 and the connecting portion 1 during blow molding.

Furthermore, the connecting portion 1 has at least one barb block 14 inside (this embodiment uses two as an example for illustration, but not limited to this), one end of the handle 2 has a convex portion 21, the convex portion 21 outside The wall ring is provided with a barb loop 22, the convex part 21 is inserted into the inside of the connecting portion 1, and each barb block 14 and the barb loop 22 are mutually snapped and fixed.

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. The tooth portion 32 is inserted into the cutout 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 engages and fixes an inner wall surface of the cutout 13.

With the above structure, since the connecting part 1 is made by injection molding, and the handle 2 is made by blow molding, it is not only convenient to manufacture, but also saves materials to reduce costs. It also further uses the cooling material 4 and the hollow interior 27’s surface contact quickly cools the grip 2 and makes the grip 2 The cutout 13 of the connecting portion 1 is quickly and firmly combined with the tooth portion 32 of the blade 3; and the cooling material 4 forms a weighting effect in the hollow interior 27 of the handle 2 so that the user has a feeling of weight when holding it. Improve the accuracy of the force control when the user holds the grip 2 for construction use.

It achieves the effect of easy assembly; in addition, it can avoid the situation that the connecting part 1 is separated from the handle 2 due to excessive force when the blade 3 is in use, which means that the connection strength of the connecting part 1 and the handle 2 can be strengthened.

Please refer to the seventh to eighth figures, which are related illustrations of the third embodiment of the present invention; in the third embodiment of the tool assembly device 102 of the present invention, the connecting portion 1 is also made through injection molding, and the grip The handle 2 is made by blow molding and has a hollow interior 27, and the two are different components.

A cooling material 4 is located in the hollow interior 27 of the handle 2, and the cooling material 4 has a lower temperature than the temperature of the handle 2 and the connecting portion 1 during blow molding; further, the connecting portion 1 has a cut 13 and is located at the opposite end The barb block 14 (this embodiment takes two barb blocks 14 as an example for illustration, but not limited to this); the handle 2 has a hollow interior 27 and a receiving portion 25 at one end of the handle 2 , And the accommodating portion 25 has a barb portion 26, so that when the connecting portion 1 is placed in the accommodating portion 25 of the handle 2, its barb block 14 will be clamped on the barb portion of the handle 2. 26 and fasten each other with hooks.

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. The tooth portion 32 is inserted into the cutout 13 of the connecting portion 1, and the tooth portion 32 is inclined toward the blade portion 31 and outward. , And the cooling material 4 contacts the surface of the hollow interior 27 to quickly cool the handle 2, so the inner wall surface of the incision 13 of the connecting part 1 will quickly engage with the teeth 32 and fit tightly Fixed; and the cooling material 4 in the hollow interior 27 of the handle 2 forms a weighting effect that allows the user to hold the handle 2 with a weight and feel, so as to improve the accuracy of the force control when the user holds the handle 2. degree.

As mentioned in this creation, since the connecting part 1 is made by injection molding, and the handle 2 is made by blow molding, it has a hollow interior 27, and the cooling material 4 is lower than the handle 2 and the connecting part 1 by blow molding. The temperature during molding, and injected into the hollow interior 27 of the handle 2 after the handle 2 is blow-molded, can indeed break through the difficulties and shortcomings of the current scraper structure in the technological development of manufacturing, and achieve the following advantages:

1. With the above structure, the grip 2 is quickly cooled by the surface of the cooling material 4 and the hollow interior 27, which not only quickly and firmly combines with the blade 3, effectively shortens the manufacturing time and saves materials, so as to achieve a higher cost reduction. Good economic efficiency.

2. Furthermore, the cooling material 4 can form a counterweight effect inside the handle 2, so that the user has a heavy feel when holding it, so as to improve the accuracy of the force control when the user holds the handle 2 for construction use .

3. Moreover, the cooling material 4 injected into the hollow interior 27 of the handle 2 can provide the handle 2 to support the hollow interior 27, so as 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, other or further embodiments of the present invention can be designed without violating its basic scope, and its basic scope is defined by the following patent applications. Although the present invention is explained with related preferred embodiments, this does not constitute a limitation to the present invention. It should be noted that those skilled in the art can construct many other similar embodiments based on the idea of the present invention, and these are all within the protection scope of the present invention.

100: Tool combination device

1: connecting part

13: incision

2: grip

27: Hollow interior

3: Blade

31: Knife Department

32: Teeth

4: Cooling material

Claims (6)

A tool assembly device includes: a handle with a connecting part, and the connecting part has a notch, and the handle and the connecting part are blow-molded and have a hollow interior; a cooling material is located on the handle The temperature of the cooling material is lower than the temperature of the handle and the connecting part during blow molding when the handle is blow-molded; a blade has a knife part and a tooth part, and makes the connecting part of the handle blow During plastic molding, insert the teeth of the blade into the incision of the connecting part, and use an auxiliary jig to clamp the connecting part and the teeth of the blade to make them firmly combined, and use the cooling material to contact the hollow inner surface to make the handle The auxiliary jig is removed after rapid cooling, and the connecting part of the handle is quickly and firmly connected to the tooth part of the blade. The cooling material forms a weight effect in the hollow interior of the handle that has a weight and feel when holding and handling. , Used to improve the accuracy of force control when the user holds the handle for construction use. According to the tool assembly device described in item 1 of the scope of patent application, the cooling material is any one of water, oil, steel balls and sand materials. A tool assembly device includes: a handle that is blow molded and has a hollow interior; a connection part that is injection molded, and the connection part has a notch, and the inside of the connection part has at least one barb block, and the handle One end has a protruding part. The outer wall ring of the protruding part is provided with a barb loop. The protruding part is inserted into the inside of the connecting part and fixed with each barb block and the barb loop. A cooling material is located in the hollow interior of the handle. In addition, the cooling material has a lower temperature than the temperature of the handle and its convex part when the handle is blow-molded inside the connecting part when the handle is blow-molded; and a blade with a knife part and a tooth part; Wherein, the tooth part of the blade is inserted into the cutout of the connecting part, and the handle is quickly cooled by the cooling material contacting the surface of the hollow interior, and the cutout of the connecting part of the handle is quickly and firmly connected to the tooth part of the blade. The material is formed in the hollow interior of the handle to have a weighting effect with a weight feeling when holding and handling, so as to improve the accuracy of force control when the user holds the handle during construction and use. According to the tool assembly device described in item 3 of the scope of patent application, the cooling material is any one of water, oil, steel balls and sand materials. A tool assembly device comprising: a handle which is blow-molded and has a hollow interior and an accommodating part at one end of the handle, and the accommodating part has a barb part; a blade with a knife part and A tooth part; a connection part made by injection molding, the connection part has a cut at one end, and a barb block at the opposite end, and the tooth part of the blade is inserted into the incision of the connection part; so that the connection part can be placed When inserted into the accommodating part of the handle, the barb block will be clamped on the barb part of the handle and fixed with each other; and a cooling material is located inside the hollow of the handle, and the cooling material is blow-molded on the handle The temperature is lower than the blow molding temperature when the barb block of the gripping connection part of the grip is blow-molded; the grip is quickly cooled by the contact of the cooling material with the surface of the hollow interior, and the teeth and the inner wall surface of the incision are quickly engaged and fixed. The cooling material forms a weighting effect in the hollow interior of the handle, which has a weight and feel during holding and handling, so as to improve the accuracy of force control when the user holds the handle. According to the tool assembly device described in item 5 of the scope of patent application, the cooling material is any one of water, oil, steel balls and sand materials.

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