JP2011143219A - Ball collector for table tennis - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem of conventional ball collectors 1 including an opening part surrounded by a frame 2 and parted to a ball collecting part 5 and a ball discharging part 6 by a border part 4, with a holding part 3 provided on its upper surface, in which collected balls fall from the ball discharging part 6 without being changed. <P>SOLUTION: On the outer side (upper side in the figure) of the holding part 3 on the upper surface of the border part 4, an expansible strip-like presser 9 is installed. Both ends 10A of the presser 9 are installed on the frame 2, and an intermediate part of the presser 9 is on the holding part 3. The presser 9 is installed in such a way as to make a gap between the border part 4 and the holding part 3 smaller than the diameter of the ball 12, and larger than the diameter of the ball as the presser is pulled upward. In the figure, a handle 8 is held, and the ball collecting part 5 is put over the balls 12 to press them for collecting them. The balls 12 are not released toward the ball discharging part 6, but are held in the holding part 3 above the ball collecting part 5 as the effect of the presser 9. For discharging the balls, the presser 9 is pulled upward by hand to form a space with the border part 4, so that the balls 12 are released through the space to be discharged from the ball discharging part 6. After the balls are discharged, the presser 9 is released off the hand to contract to return to the state in the figure, so that balls can be collected again. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an improvement in a method for discharging a collected ball of a ball collecting tool for table tennis practice using a large number of balls, in particular, a ball collecting tool formed by stretching a linear object on the collected spherical surface.

  As a method of collecting a large number of balls scattered on the floor surface during table tennis practice, a scooping method using a insect net such as shown in FIG. 10 is currently widely used. Furthermore, methods such as Patent Documents 1 to 4 have been proposed. These are not skimmed, but a linear object 7 is stretched in an opening surrounded by the frame 2 of the skimming-type ball collecting tool of FIG. 10 at intervals smaller than the diameter of the ball, and the linear object 7 is stretched. This is a method of collecting the balls passing between the linear objects 7 by covering and holding the exposed surface from above the balls.

  In the case of this method, when the collected balls are used or transferred to another container, it is necessary to take them out from the holding unit that collects and holds the balls. In Patent Documents 1 to 4, each device is devised. The present invention is a method for taking out the ball, that is, a method for opening and closing the ball discharge portion at the time of ball discharge, particularly, in which a ball collecting portion and a ball discharge portion are provided in the opening surrounded by the frame 2 shown in Patent Document 4. The present invention relates to the improvement of the opening and closing method.

Japanese Utility Model Sho 63-043565 Registered utility model No. 3001277. Patent registration No. 3660585. JP2009-189768

  The ball-collecting tool to be improved by the present invention is provided with a ball-collecting portion and a ball-discharging portion in an opening surrounded by a frame, and is easy to use if it functions well. However, since the ball collecting unit and the ball discharging unit are provided in the opening in the same frame, the ball may move toward the ball discharging unit during the ball collecting at the ball collecting unit. Therefore, as a method for preventing this, Patent Document 4 has devised measures such as setting the size (width) of the ball throwing portion to be 1.5 times or more of the great circle of the ball or using a fall prevention tool.

  However, further improvement is considered necessary in order to reliably collect and discharge balls with practical smoothness. For example, in order to smoothly and quickly discharge the collected balls, it is desirable to ensure the size (width) of the ball discharge portion as it is. However, simply increasing the size of the ball will cause the collected ball to move toward the ball exit and fall. Therefore, means for preventing the fall such as a fall prevention tool is required.

  Patent Document 4 proposes a cylindrical object, a sheet-like object, a plate-like object, a massive object, or the like as a fall prevention tool. If these methods are used, it is surely effective in preventing unexpected spillage from the ball discharge part. However, there are times when it is difficult to open and close cylinders and sheets, and for plates, etc., balls may spill out during collection or carrying, and improvements are desired. ing. Therefore, the present invention aims to solve this problem during ball discharge.

  The present invention has solved the above problem by the following method. That is, in a table tennis ball collecting tool in which the ball collecting portion 5 and the ball throwing portion 6 are provided in the opening portion surrounded by the frame 2 and the holding portion 3 is provided on the upper surface portion, the ball throwing of the ball 12 collected in the ball collecting portion 5 In order to control the movement to the portion 6, a holding device 9 having elasticity is attached to the holding portion 3, or the holding portion 3 is formed by the holding device 9 having elasticity, and the holding portion 3 and the boundary portion 4 The movement of the ball 12 between the opening and closing is solved by a method of extending and controlling the presser 9.

  Furthermore, instead of the presser 9 having elasticity described above, one objective of the magnet 14 and the steel 15 having adsorption characteristics is used, and one of the pair is attached to the holding part 3 or forms the holding part 3. The other part is attached to the corresponding part of the boundary 4 or the frame 2 or the corresponding part is formed on the other side, and the movement space is opened and closed by attaching the magnet 14 to the steel 15 using the adsorption characteristic and separating it. It was also solved by the control method.

  Furthermore, instead of the one objective of the magnet 14 and the steel 15, the problem can be solved by using a cloth tape-like object (such as Magic Tape (trade name)) utilizing hook-shaped and pile-shaped engagement characteristics. .

  The collected ball is temporarily held between the ball collecting portion and the holding portion, and then moved and discharged over the boundary between the ball collecting portion and the ball discharging portion. The above-mentioned problems were solved by the method of freely controlling the opening and closing of the space by expanding or narrowing, and the following effects were obtained.

(B) Conventionally, it was necessary to reduce the width of the discharge part or use a fall prevention tool, etc., but the ball movement from the ball collecting part to the ball discharging part can be controlled at the boundary part. As a result, there was no unexpected spilling of the ball, and the size of the ball-departing part could be set large enough, and the ball could be discharged very smoothly and quickly. Drop prevention tools are no longer needed.
(B) Because it uses the elasticity of rubber-like materials, magnet adsorption, cloth tape engagement, etc., the opening and closing of the space on the boundary for ball draining should be in the same posture as when collecting balls. It can be operated by one-touch operation such as pulling the holding part upward or releasing it by hand, and it is very easy to use.
(C) Since the opening and closing of the space on the boundary can be controlled, the ball cannot move freely from the collecting part to the discharging part, and the ball rolls down during collecting, carrying or storing. There is no worry and it can be used with confidence.
(2) When you want to move the collected ball from the collecting tool to a container, etc., bring the draining part over the opening part of the container and pull the holding part above the boundary part upward by hand. The ball moves from the ball collecting unit to the ball discharging unit, is discharged, and is dropped and accommodated in a container or the like. If you release your hand, the space on the border will close and you can collect and carry again. Even when the hand is released in the middle of discharging and the ball remains in the holding portion, there is no hindrance to collecting or carrying the ball and it is very easy to use.

An original ball-collecting tool that divides the opening in the frame into a ball-collecting part and a ball-collecting part. The front view of a ball-collecting tool equipped with the presser having elasticity according to the present invention. FIG. X-X 'visual field sectional drawing of a ball collecting tool same as the above. A figure (front view) of collecting balls with the same ball collecting tool. The figure (front view) which is discharging the balls collected by the same ball collecting tool. The front view of the ball-collecting tool equipped with the magnet of this invention. FIG. Y-Y 'visual field sectional drawing of a ball collecting tool same as the above. A commercially available scooping-type ball collecting tool.

  In this type of ball collecting tool 1, that is, the ball collecting device 1 in which the ball collecting portion 5 and the ball discharging portion 6 are provided on the surface surrounded by the frame 2 and the holding portion 3 is provided on the upper surface portion thereof, the ball collecting portion 5 The ball 12 collected in step 1 is once held between the ball collecting unit 5 and the holding unit 3, and at the time of ball discharging, the ball 12 always moves through the upper part of the boundary portion 4 between the ball collecting unit 5 and the ball discharging unit 6. 6 is discharged. Therefore, if the space for movement, that is, the space between the holding portion 3 and the boundary portion 4 (opening portion for moving the ball 12) is opened or closed, the ball discharge can be controlled.

  Therefore, as a result of various investigations on the control method, a flexible net-like material or cloth-like material is used as the holding portion 3, and the flexibility is used to expand / contract the rubber-like material, the magnet adsorption property, The problem has been solved by widening or narrowing the flexible holding part 3 with a material having the meshing characteristics of cloth tape.

  As the rubber-like material, a presser 9 having elasticity such as a string-like, belt-like, rod-like, cloth-like, net-like or a combination of those having rubber-like elasticity or a composite material thereof is used. Then, it is attached to the holding portion 3 or the holding portion 3 is formed by the presser 9. At that time, the space between the holding part 3 and the boundary part 4 is made smaller (narrower) than the diameter of the ball 12. Further, as the presser 9, there is used a presser having a stretchability capable of creating a space (larger) than the diameter of the ball 12 between the holding part 3 and the boundary part 4 by pulling it.

  If attached in this manner, the collected balls will not spill out toward the ball-departing part even when the ball is being collected or carried as long as the hand is released from the presser 9. Further, when it is desired to drain the ball, if the presser 9 is pulled away from the boundary portion 4, a space is formed between the holding portion 3 and the boundary portion 4 so that the ball 12 can pass therethrough. It moves toward 6 and is discharged.

  In the case of a magnet, the magnet 14 is used as a pair using the adsorption characteristics of the magnet 14 to the steel 15. Accordingly, either one of the pair of objects is attached to or formed on the holding portion 3 as in the case of the presser 9. The remaining other is mounted or formed on the boundary 4 or the frame 2 side. In that case, it attaches to the part corresponding to one of the objectives attached to the holding part 3 side, or the corresponding part is formed by the other of the pair.

  For example, if the magnet 14 is attached to the holding portion 3, the steel 15 is attached to the boundary portion 4 or the like corresponding to the position of the magnet 14. If it is mounted in such a manner and the magnet is attracted to the steel and attached or separated, the space between the holding part 3 and the boundary part 4 can be reduced as in the case of the presser 9. You can control.

In case of cloth tape such as Velcro (trade name), use one object of hook and pile in the same way as one object of magnet and steel. The space between the holding part 3 and the boundary part 4 can be controlled as in the case of the magnet. In addition, it is also possible to use a combination of two or three of the presser, one objective of the magnet and steel, and one objective of the hook and the pile-like object as appropriate.
The present invention will be further described below with reference to examples.

  The present embodiment is an embodiment using a presser 9 having elasticity. FIG. 2 to FIG. 6 show examples of the embodiment. 2 is a front view of the ball collecting tool, FIG. 3 is a plan view, FIG. 4 is a cross-sectional view taken along the line XX ′ shown in FIG. 3, and FIGS. Figure).

  As the ball collecting tool before mounting the presser 9, the ball collecting tool shown in FIG. 1, that is, the opening part surrounded by the frame 2 is divided into the ball collecting part 5 and the ball discharging part 6 at the boundary part 4, In addition, a ball collecting tool (hereinafter referred to as “original ball collecting tool”) in which the ball 12 can smoothly pass through the size (width) of the opening of the ball discharging unit 6 was used. FIG. 1 shows a perspective view (A), a front view (B), a plan view (C), and a bottom view (D) of the prototype ball collecting tool 11. Note that the prototype ball collecting tool 11 is not limited to FIG. 1 but is shown as one of the embodiments.

  This prototype ball collecting tool 11 has a rigid frame 2 and a holding part 3 for holding the collected ball (using a flexible net that can follow the expansion and contraction of the presser 9) and handling operation. It is configured with a handle 8 for use. The opening surrounded by the frame 2 is composed of a ball collecting portion 5 for collecting the balls and a ball discharging portion 6 for discharging the collected balls (both formed so that the balls 12 can pass smoothly). In the opening, the linear object 7 is stretched at a distance narrower than the diameter of the ball 12 to form the ball collecting portion 5, and the ball discharging portion 6 is left in an open state. This is an example in which a partition plate is provided to form the boundary portion 4.

  As shown in FIGS. 2 to 4, the first embodiment of the ball collecting tool 11 is provided with a holding tool 9 to form the ball collecting tool 1 according to the first embodiment. As the presser 9, a presser 9 having various shapes can be used. In this embodiment, a flat strip having elastic rubber elasticity is used, and this is used as a holding portion 3 on the upper surface portion of the boundary portion 4. Attach outside (upper side in the figure).

  Since the presser 9 is in a contracted state at the time of mounting, the holding portion 3 to which the presser 9 is mounted is pressed toward the boundary portion 4, and the space between the holding portion 3 and the boundary portion 4 becomes narrow. At this time, the space is adjusted to be smaller than the diameter of the ball 12. When the presser 9 is pulled, this space is expanded. At this time, the size of the holding portion 3 and the stretchability of the presser 9 are adjusted so that the space becomes larger than the diameter of the ball 12.

  A thread was used for attachment, and both ends 10A of the presser 9 were sewn and attached to the frame 2, and two places (10B) near the center were attached to the net of the holding part 3. There is no problem even if it is mounted by a method other than sewing, for example, a known method such as adhesion. Moreover, even if it is the partial mounting | wearing which mounts the place of 10A and 10B like a present Example, the method of mounting | wearing entirely may be sufficient.

  In this embodiment, the presser 9 is mounted on the outer side (upper side in the drawing), but may be mounted on the inner side (lower side in the drawing) or may be mounted so as to be sandwiched between the holding units 3. Good. In this embodiment, the mounting portion is mounted on the holding portion 3 on the upper surface portion of the boundary portion 4, but is not limited to the upper surface portion of the boundary portion 4. Moreover, you may form those holding | maintenance parts 3 using the pressing tool 9 instead of mounting | wearing.

  However, when these are mounted and used, the space between the boundary portion 4 and the holding portion 3 is smaller than the diameter of the ball 12 during ball collection or carrying (that is, when the presser 9 is not pulled). Similarly, when the presser 9 is pulled, the space is adjusted to be larger than the diameter of the ball 12. Of course, the holding portion 3 on the upper surface portion of the ball collecting portion 5 is sized so that an appropriate amount of balls can be collected and held there.

  Hereinafter, the usage method of the ball-collecting tool 1 of a present Example is demonstrated.

  At the time of collecting the ball, the handle 8 is held, and as shown in FIG. 5, if the ball collecting portion 5 is put on and pressed from the ball 12 on the floor, the ball passes between the linear objects 7. The ball is moved from the floor surface toward the holding unit 3 and collected. At that time, the presser 9 is not pulled and is kept as it is. In this state, as shown in FIGS. 2 and 4, since the presser 9 presses the holding portion 3 so that the space between the boundary portion 4 is smaller than the diameter of the ball 12, the holding portion 3. The ball 12 inside is reliably collected and held without fear of spilling out toward the ball discharger 6.

  At the time of ball discharge, for example, when it is desired to move the ball 12 to the container 13, as shown in FIG. 6, the tip 9 (left end in FIG. 6) of the ball collector 1 is slightly raised upward to hold the presser 9. Is pulled upward (in the direction of arrow G in FIG. 6), a space is formed between the boundary portion 4 and the holding portion 3 so that the ball 12 can pass, and the ball 12 moves toward the ball discharging portion 6 through the space. Drop into the container 13. In order to create a space through which the ball 12 can pass, a presser 9 having a predetermined stretchability is used, and a holding part 3 having a size capable of forming such a space is used. deep.

  As described above, the presser 9 that expands and contracts is attached to the holding portion 3 on the upper surface portion of the boundary portion 4. As a result, the ball 12 is smoothly held without being spilled toward the draining portion 6 during the ball collection. I can do it now. There is no spillage when carrying. Further, when it is desired to discharge the ball 12, it is discharged by a simple operation by simply pulling the presser 9 upward.

  The present embodiment is an example in which one objective of a magnet and steel is used instead of the presser 9 having elasticity that is used in the first embodiment. Examples of the embodiments are shown in FIGS. 7 is a front view thereof, FIG. 8 is a plan view thereof, and FIG. 9 is a sectional view taken along the Y-Y 'field of view shown in FIG.

  As in the first embodiment, the original ball collecting tool 11 shown in FIG. 1 is used, and the magnet 14 and the steel 15 are attached thereto as shown in FIGS. That is, an elongated flat steel plate 15 is bonded and mounted on the partition plate surface of the boundary portion 4, and two circular plate magnets 14 smaller than the steel plate 15 are bonded and mounted to the holding portion 3 on the upper surface portion. The magnet 14 is mounted on the inner surface of the holding portion 3 and mounted so that its mounting position (part) is adjusted so as to attract and adhere to the steel 15 when the hand is released from the magnet 14.

  If the size, number, shape, etc. of the magnets and steels are devised in this way, the suction attachment becomes smoother. Note that the magnet or steel may be in the form of a composite material as long as it exhibits suction adhesion characteristics. However, when the magnet 14 and the steel 15 are attracted and attracted, similarly to the first embodiment, the magnet 14 is pulled apart so that the space between the boundary portion 4 and the holding portion 3 is narrower than the diameter of the ball 12. Sometimes the space is adjusted and mounted so that the space is larger than the diameter of the ball 12.

  The mounting of the magnet 14 and the steel 15 is opposite to the present embodiment, that is, even if the magnet 14 is mounted toward the boundary portion 4 and the steel 15 is mounted toward the holding portion 3, there is no problem. The attachment to the holding portion 3 is performed in the same manner as the attachment of the presser 9 in the first embodiment, and the attachment to the boundary portion 4 and the frame 2 side is adjusted to the corresponding portion. Further, when an appropriate corresponding portion is not found in the boundary portion 4 or the frame 2, a corresponding portion can be provided around the periphery.

  Instead of mounting, the mounting site or the like can be formed by magnets, steel, or the like, as in the first embodiment. Furthermore, the fall prevention tool etc. which are shown by patent document 4 can be used together. For example, when it is used in combination with the plate-like fall prevention tool 9B shown in the same document, there are times when the usability and appearance are improved. This combination is the same for the presser 9 and the cloth tape.

  The method of using the ball collecting tool of the present embodiment is the same as that of the first embodiment, with the magnet 14 and the steel 15 being attached when collecting or carrying the ball, and when the ball is discharged, the magnet 14 is moved upward. Used by pulling away from the pulling steel 15. Usability and the like are the same as those in the first embodiment, and are very easy to use.

In this embodiment, a fabric tape “magic tape” (trade name) having a meshing characteristic is used.
Although Example 2 was an example of one objective using the adsorption characteristics of a magnet and steel, this example is an example using one objective using the meshing characteristics of hook-shaped and pile-shaped cloth tapes. . Therefore, if the one objective of the magnet and steel in Example 2 is replaced with one objective of hook and pile, a ball collecting tool using magic tape can be obtained.

For example, in FIGS. 7 to 9 of the second embodiment, if one objective of the magnet 14 and the steel 15 is replaced with one hook and a pile, the ball collecting tool of the third embodiment can be obtained.
The usage and usability of the ball collecting tool of the present embodiment are the same as those in the second embodiment, and provide a ball collecting tool that is very easy to use.

1, ball collecting tool 2, frame 3, holding portion 4, boundary portion 5, ball collecting portion 6, ball throwing portion 7, linear object 8, handle 9, pressers 10, 10A, 10B, mounting portion 11, prototype ball collecting Tool 12, ball 13, container 14, magnet 15, steel

Claims (3)

  In a table tennis ball collecting tool provided with a ball collecting portion 5 and a ball throwing portion 6 in the opening portion surrounded by the frame 2 and a holding portion 3 on the upper surface portion, the ball throwing portion 6 of the ball 12 collected by the ball collecting portion 5. In order to control the movement of the holder, a holding device 9 having elasticity is attached to the holding portion 3 or the holding portion 3 is formed by the holding device 9 having elasticity, and between the holding portion 3 and the boundary portion 4 A table tennis ball collecting tool characterized by controlling the opening and closing of the movement space of the ball 12 by expanding and contracting the presser 9.   Instead of the presser 9 having elasticity, one objective of the magnet 14 and the steel 15 having adsorption characteristics is used, and one of the pair is attached to the holding part 3 or the holding part 3 is formed, and the other is Attaching to or forming the corresponding part of the boundary 4 or the frame 2, and controlling the opening and closing of the moving space by attaching and separating the magnet 14 to the steel 15 using the adsorption characteristics. The table tennis ball collecting tool according to claim 1, wherein:   3. The table tennis table according to claim 1, wherein instead of the one object of the magnet 14 and the steel 15, a cloth tape-like object utilizing a hook-like and pile-like engagement characteristic is used. Collecting tool.

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