TWM629472U - Bowling pin structure with two-piece core - Google Patents

Abstract

A bowling pin structure with a two-piece bottle core, mainly composed of two bottle cores made by injection molding to form a bottle body, each bottle core includes: a head located at the top of the bottle core, and a plurality of numbers are formed in the head. a cavity; a neck, adjacent to the lower part of the head, and a reinforcing structure is formed in the neck; an abdomen, adjacent to the lower part of the neck, a center of gravity and a plurality of third ribs are arranged in the abdomen; a bottom , adjacent to the lower part of the abdomen, a pair of counterweight blocks and a groove are formed in the bottom; and a hot-melt rib is protruded on the inner surface; accordingly, the two bottle cores are thermally welded to form a bottle body, which is placed in A groove is formed on the surface of the bottle body corresponding to the joint to prevent material from overflowing, and finally a resin protective layer is covered on the outside to complete the production, which greatly improves the production efficiency and the quality of the finished product.

Description

Bowling pin structure with two-piece core

This creation belongs to the field of sports equipment, especially about a bowling pin structure with a two-piece bottle core, so that a bottle body can be formed by using two bottle cores by heat welding, and its special structure design can have a wooden structure after completion. With the same characteristics and stronger use strength of the ball pins, it not only greatly improves the production efficiency and finished product quality, but also effectively prolongs the service life.

Press, bowling has always been a well-received indoor sport in Europe and the United States, and there are also regional and world competitions. Therefore, the venues and equipment required for bowling are also relatively important. It hits the bowling pins arranged according to the regulations on the fairway, and is used for scoring according to the number of knocked down pins. The most attractive thing in bowling is the collision and sound when the pins are knocked down. For this reason, the world bowling The association has its relevant specifications for bowling balls and bowling pins. The traditional bowling pins are made of wood materials. After a long time of continuous impact, the surface shape will be irreversibly damaged, which will affect the relationship between the pins and the pins. The collision relationship, thus affecting the service life.

Therefore, it has gradually evolved into the new type of bowling pin seen today. In order to effectively prolong its service life, this new type of bowling pin consists of a wooden ball bottle body, two hemispherical bottle plastic-shaped outer covers and a ball bottle bottom cover. The center of the bottom end of the wooden spherical bottle body is provided with a circular convex body, the outside of which is tightly and completely covered by the two plastic-shaped outer covers of the hemispherical bottle, and the lower end of the two plastic-shaped outer covers of the hemispherical bottle is provided with an inner sleeve In addition, the bottom cover of the ball bottle is generally in the shape of a hollow circular convex body, and there are several positioning ribs inside it, and a socket is formed on the surface side of the protruding section of the bottom cover of the ball bottle, so that the bottom of the ball bottle can be connected The cover is embedded in the socket, so that the wooden ball bottle body, the two-piece plastic-shaped outer cover of the hemispheric bottle and the ball bottle bottom cover are tightly connected.

However, due to the structural design problem of this new type of ball pin, it will still be damaged at the joint after a long-term collision, and it will make a noisy sound after the impact and cannot make a crisp impact sound, and affect the ball. Impact relationship between bottles. Furthermore, the wooden pin system uses solid pins made of logs. After a period of use, the log material inside the pin will be damaged and cannot be used, and it cannot be recycled and reused. The weight of the pins used is limited by the specification, and the mass density of the logs is naturally grown, and it will absorb the moisture in the air when placed, so how to accurately control the weight of the bowling pins will also form a difficulty in the production process; , Due to the special curve shape on the outside of the bottle body, it consumes a lot of materials, and the cost of molding and processing is high and the processing time is long. In addition to the weight of the material itself, the material consumed during turning processing is also quite large. Therefore, in the face of the rising awareness of environmental protection and the modern trend of difficult to obtain log materials, it is necessary to further study and improve the structural design of bowling pins.

In view of this, the creator has concentrated on researching the shortcomings of the current bowling pins in actual use, and finally developed the bowling pin structure with two-piece cores. A hot-melt rib protrudes from the joint surface of each bottle core, so that the two bottle cores can be melted by high-temperature welding to form the bottle body, and the corresponding joints on the surface of the bottle body are formed. A groove is formed to prevent the material of the two hot-melt ribs from overflowing, and finally a resin protective layer is covered on the outside thereof. According to this, the production efficiency and the quality of the finished product can be greatly improved, and the difficulty in obtaining wood materials and the high cost can be overcome. shortcoming.

One of the objectives of the present invention is to provide a bowling pin structure with two-piece cores, which includes two cores and a resin protective layer, wherein the two cores are integrally formed by plastic injection, and each core is made of plastic. From top to bottom, there are a head, a neck, an abdomen and a bottom, respectively, and a hot-melt rib is protruded on the opposite joint surfaces of the two bottle cores, which are used to heat-melt the two bottle cores to form a bottle body. , a groove is formed at the junction to prevent the hot-melt material from overflowing, and finally a resin protective layer is coated on the outside, thereby greatly improving production efficiency and finished product quality, and can reduce material costs and manufacturing costs, etc. effect.

In order to achieve the above purpose, the bowling pin structure with two-piece bottle cores in this creation includes: two bottle cores, which can form a bottle body after being welded by heat, and each bottle core is divided into an outer surface showing a special-shaped curved surface. The surface, and an inner surface showing a plane, comprising: a head located at the top of the bottle core, the head is internally formed with a plurality of first ribs to divide the inner space into a plurality of cavities; a neck, adjacent to On one side of the head and the size is smaller than the head, a plurality of second ribs are formed inside the neck, and the second ribs are connected to form a reinforcing structure; an abdomen is adjacent to one side of the neck , and the size of the abdomen is larger than that of the head, a set position inside the abdomen is provided with a center of gravity, and a plurality of third ribs radiate outward from the center of gravity to connect to the inner wall of the abdomen; a bottom , adjacent to one side of the abdomen, the bottom is formed with a pair of counterweight blocks, and a groove is formed in the center of the bottom; and a hot-melt rib is protruded on the inner surface, so that the hot-melt rib is Surrounding the circumference of the head, the neck, the abdomen and the bottom, and a part of it extends from the first ribs, the second ribs and the third ribs, after heat welding, the bottle body A groove is formed on the surface corresponding to the joint, so that the melted material of the hot-melt ribs will not overflow; and a resin protective layer is covered on the outside of the bottle body, and a part of the resin protective layer is filled in the in the groove.

In one embodiment, each cavity of the present invention is provided with a protruding column inside; and the neck is arranged from top to bottom in a widening and narrowing and then widening configuration; and the center of gravity is located at a bottom surface away from the bottom 146.8-150.8mm; in addition, the two grooves on the two bottoms will form a slot after the combination for subsequent processing.

In another embodiment, the bowling pin structure with the two-piece bottle core of the present invention further has a ring insert groove and an anti-slip ring, the ring insert groove is arranged on the outside after the two bottoms are combined, and the anti-slip ring The ring is embedded in the ring embedding groove to increase the bottom area after the two bottoms are combined; and the anti-slip ring is extended with a ring protrusion corresponding to the ring embedding groove, and the outer wall surface of the ring protrusion is A plurality of anti-slip bumps are arranged on the anti-slip ring, the shape of the anti-slip ring is flush with the circumference of the bottom, and the bottom surface of the anti-slip ring is flush with the plane of the bottom.

In yet another embodiment, the bowling pin structure with the two-piece core of the present invention further has a hot-melt attachment groove extending on the groove, and the hot-melt attachment groove is located on the head In addition, the bowling pin structure with the two-piece bottle core of the present creation further has a hot-melt positioning groove and a positioning hole, which are both set on the outer surface of any bottle core, and the hot-melt positioning groove The positioning grooves and the positioning holes are located on the central axis of the center of gravity, both to improve the convenience and stability of subsequent processing.

In order for your reviewers to have a clear understanding of the content of this creation, please refer to the following descriptions and drawings.

Please refer to FIG. 1 and FIG. 2, as well as FIG. 3 and FIG. 4, which are a three-dimensional exploded view of a preferred embodiment of the present creation and a test diagram of the bottle core, as well as the appearance schematic diagram of the two bottle cores after heat welding and the finished bottle core. Appearance diagram. As shown in the following figures, the bowling pin structure 1 with two-piece cores of the present invention includes two cores 11 and a resin protective layer 12 .

The two bottle cores 11 are thermally welded to form a bottle body 13, and each bottle core 11 is divided into an outer surface 111 showing a special-shaped curved surface and an inner surface 112 showing a flat surface. The core 11 can be divided into several parts, which includes a head 113 located at the top of the bottle core 11 , and a plurality of first ribs 1131 are formed inside the head 113 to separate the inner space into a plurality of cavities 1132 , and each cavity 1132 is provided with a protruding post 1133 inside, and the protruding posts 1133 are used to suppress the sound during impact without becoming a cavity, so as to emit a more solid sound; a neck 114, which is adjacent to the One side of the head 113 is smaller in size than the head 113 , a plurality of second ribs 1141 are formed inside the neck 114 , and the second ribs 1141 are arranged horizontally and vertically to form a reinforcing structure 1142 , so that the reinforcing structure 1142 presents a continuously connected field shape; an abdomen 115 is adjacent to one side of the neck 114, and the size of the abdomen 115 is larger than that of the head 113, and one of the interior of the abdomen 115 is set There is a center of gravity 1151 at the position, and a plurality of third ribs 1152 radiate outward from the center of gravity 1151 to connect to the inner wall of the abdomen 115; a bottom 116 is adjacent to one side of the abdomen 115, the bottom 116 is formed with a pair of counterweights 1161, and a groove 1162 is formed in the center of the bottom 116; and a hot-melt rib 117 is protruded on the inner surface 112, so that the hot-melt rib 117 surrounds the head 113. The peripheral edges of the neck 114, the abdomen 115 and the bottom 116, and a part of them extend from the first ribs 1131, the second ribs 1141 and the third ribs 1152, after heat welding, A groove 131 is formed on the surface of the bottle body 13 corresponding to the joint, so that the melted material of the hot-melt ribs 117 will not overflow. It should be noted that, as shown in the figure, the neck 114 of the present invention is set from top to bottom in a widening, narrowing and then widening arrangement, and, according to the competition regulations of the International Bowling Association, the two-piece bottle core is provided. The center of gravity portion 1151 of the bowling pin structure 1 is located at a distance of 146.8-150.8 mm from the bottom surface of the bottom portion 116, and the two grooves 1162 of the two bottom portions 116 are combined to form a slot 1163, which can be used for subsequent processing. use.

The resin protection layer 12 is covered on the outside of the bottle body 13 , and a part of the resin protection layer 12 is filled in the groove 131 .

In addition, the bowling pin structure 1 with two-piece core of the present invention further has a ring insert groove 14 and an anti-slip ring 15 , the ring insert groove 14 is provided outside the two bottoms 116 after the combination, and the slip-proof ring 14 is provided. The ring 15 is embedded in the ring embedding groove 14 to increase the bottom area after the two bottoms 116 are combined, and the anti-slip ring 15 is extended with a ring protrusion 151 corresponding to the ring embedding groove 14 , and the A plurality of anti-slip bumps 152 are provided on the outer wall of the ring convex portion 151 . The shape of the anti-slip ring 15 is aligned with the periphery of the two bottoms 116 , and the bottom surface of the anti-slip ring 15 is aligned with the bottoms of the two bottoms 116 . It should be noted that the bowling pin structure 1 with a two-piece core of the present invention further has a hot-melt attaching groove 16 extending on the groove 131 , and the hot-melt attaching groove 16 is located in the groove 131 . The top ends of the two heads 113, and furthermore, a hot-melt positioning groove 17 and a positioning hole 18 are formed on the outer surface 111 of any bottle core 11, and the hot-melt positioning groove 17 and the positioning hole Line 18 is located on the center axis corresponding to the center of gravity portion 1151 .

Accordingly, the bowling pin structure 1 with a two-piece bottle core of the present invention is the two bottle cores 11 made by integral molding by injection molding, and each bottle core 11 is a head 113 from top to bottom. , a neck 114, a belly 115 and a bottom 116, and a hot-melt rib 117 is respectively protruded on the opposite joint surfaces of the two bottle cores 11, and the bottle body 13 is formed after high temperature heat welding, and The groove 131 formed on the surface is used to prevent the material from overflowing after hot-melting, and finally the resin protection layer 12 is covered on the outside thereof, thereby greatly improving the production efficiency and the quality of the finished product, and reducing the material cost. and manufacturing costs and other efficacy purposes.

However, the above descriptions are only preferred embodiments of the present creation, and are not intended to limit the scope of the present creation. Therefore, those with ordinary knowledge in the technical field or familiar with the technology have made various components to perform Equivalent replacements, or more serialized changes, all equivalent changes and modifications made without departing from the spirit and scope of this creation shall be covered by the patent scope of this creation.

1: Bowling pin structure with two-piece core 11: bottle core 111: outer surface 112: inner surface 113: Head 1131: First Rib 1132: Hole 1133: Column 114: Neck 1141: Second Rib 1142: Reinforcing Structure 115: Belly 1151: Center of Gravity 1152: Third Rib 116: Bottom 1161: Counterweight 1162: Groove 1163: Slot 117: Hot melt ribs 12: Resin protective layer 13: bottle body 131: Groove 14: Ring insert groove 15: Anti-slip ring 151: Ring convex part 152: Anti-slip bump 16: Hot melt clip with groove 17: Hot melt positioning groove 18: Positioning hole

FIG. 1 is an exploded perspective view of a preferred embodiment of the present invention. FIG. 2 is a side view of the bottle core according to the preferred embodiment of the present invention. FIG. 3 is a schematic view of the appearance of the two bottle cores after being thermally welded according to a preferred embodiment of the present invention. FIG. 4 is a schematic view of the appearance after the production of the preferred embodiment of the present invention.

11: bottle core

111: outer surface

112: inner surface

113: Head

1131: First Rib

1132: Hole

1133: Column

114: Neck

1141: Second Rib

1142: Reinforcing Structure

115: Belly

1151: Center of Gravity

1152: Third Rib

116: Bottom

1161: Counterweight

1162: Groove

117: Hot melt ribs

15: Anti-slip ring

151: Ring convex part

152: Anti-slip bump

16: Hot melt clip with groove

Claims (9)

A bowling pin structure with a two-piece bottle core, comprising: Two bottle cores can form a bottle body after heat fusion, and each bottle core is divided into an outer surface showing a special-shaped curved surface and an inner surface showing a flat surface, which includes: a head, located at the top of the bottle core, the head is internally formed with a plurality of first ribs to divide the inner space into a plurality of cavities; a neck, adjacent to one side of the head and smaller in size than the head, a plurality of second ribs are formed inside the neck, and the second ribs are connected to form a reinforcing structure; an abdomen, adjacent to one side of the neck, and the size of the abdomen is larger than that of the head, a center of gravity is set at a predetermined position inside the abdomen, and a plurality of third ribs radiate outward from the center of gravity to connect to the inner wall of the abdomen; a bottom, adjacent to one side of the belly, the bottom is formed with a pair of counterweights, and a groove is formed in the center of the bottom; and A hot-melt rib is protruded on the inner surface, so that the hot-melt rib surrounds the periphery of the head, the neck, the abdomen and the bottom, and a part of the hot-melt rib extends from the first ribs, the After the second ribs and the third ribs are thermally welded, a groove is formed on the surface of the bottle corresponding to the joint, so that the melted material of the hot-melt ribs will not overflow; and A resin protection layer is covered on the outside of the bottle body, and a part of the resin protection layer is filled in the groove. The bowling pin structure with a two-piece bottle core as claimed in claim 1, wherein each cavity is provided with a protruding post. The bowling pin structure with a two-piece bottle core as claimed in claim 1, wherein the neck portion is arranged from top to bottom in a manner of widening and narrowing and then widening. The bowling pin structure with two-piece core according to claim 1, wherein the center of gravity is located at a distance of 146.8-150.8 mm from the bottom surface of the bottom. The bowling pin structure with a two-piece core as claimed in claim 1, wherein the two grooves on the two bottoms form a slot for subsequent processing after being combined. The bowling pin structure with a two-piece bottle core as claimed in claim 1, further comprising a ring insert groove and an anti-slip ring, the ring insert groove is provided outside the two bottoms after the combination, and the slip-stop ring is embedded in the ring-embedded groove to increase the bottom area after the two bottoms are combined. The bowling pin structure with a two-piece bottle core as claimed in claim 6, wherein the anti-slip ring is extended with a ring protrusion corresponding to the ring insert groove, and the outer wall of the ring protrusion is provided with a plurality of A non-slip bump, the shape of the periphery of the anti-slip ring is flush with the circumference of the bottom, and the bottom surface is flush with the plane of the bottom. The bowling pin structure with two-piece bottle core as claimed in claim 1, further comprising a hot-melt attachment groove extending on the groove, and the hot-melt attachment groove is located at the top of the head . The bowling pin structure with a two-piece bottle core as claimed in claim 1, further has a hot-melt positioning groove and a positioning hole, both of which are set on the outer surface of any bottle core, and the hot-melt positioning groove The slot and the positioning hole are located on the central axis of the center of gravity.

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