KR20150010059A - Apparatus for grinding billiard chalk - Google Patents

Apparatus for grinding billiard chalk Download PDF

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Publication number
KR20150010059A
KR20150010059A KR1020130084460A KR20130084460A KR20150010059A KR 20150010059 A KR20150010059 A KR 20150010059A KR 1020130084460 A KR1020130084460 A KR 1020130084460A KR 20130084460 A KR20130084460 A KR 20130084460A KR 20150010059 A KR20150010059 A KR 20150010059A
Authority
KR
South Korea
Prior art keywords
shaft
case
grinding
plate
guide hole
Prior art date
Application number
KR1020130084460A
Other languages
Korean (ko)
Inventor
김동엽
Original Assignee
김동엽
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김동엽 filed Critical 김동엽
Priority to KR1020130084460A priority Critical patent/KR20150010059A/en
Publication of KR20150010059A publication Critical patent/KR20150010059A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition

Abstract

A billiard chalk grinding device according to the present invention includes a case whose upper side is open; a lid that forms a closed space by covering the upper side of the case and has a first guide hole in the longitudinal direction of the case; a tray that is disposed to be removable on a bottom surface of the case, has a plurality of receiving holes for billiard chalk insertion, and has a second guide hole at a position corresponding to the position of the first guide hole; a grinding plate that is positioned on an upper side of the tray and presses the billiard chalk loaded on the tray in a vertical direction; a sandpaper that is disposed on a lower surface of the grinding plate and is in contact with an upper surface of the billiard chalk; a pressing plate that is positioned on an upper side of the grinding plate; a plurality of springs with one ends coupled with the grinding plate and the other ends coupled with the pressing plate between the grinding plate and the pressing plate; a handle that has a first body positioned on an upper side of the lid and a second body coupled with the pressing plate through the first guide hole and is moved in the longitudinal direction of the case by being pressed in the vertical direction or along the first guide hole; and a separation prevention shaft that has a first shaft and a second shaft larger in diameter than the first shaft, in which the first shaft is coupled with a lower central portion of the second body through a first shaft hole formed in a central portion of the pressing plate and a second shaft hole formed in a central portion of the grinding plate in order in a state where the second shaft is locked by the first shaft hole formed in a central portion of the pressing plate and the second shaft is moved in the longitudinal direction of the case along the second guide hole.

Description

{APPARATUS FOR GRINDING BILLIARD CHALK}

The present invention relates to a billiard chalk grinding apparatus.

During the billiard game, the player rubs the center of the billiard choke from time to time on the cue tip. As a result, the center portion of the billiard choke is worn and dented.

In order to recycle the corroded billet chokes, the operator grasps the billet chokes by hand and cuts the billet chokes with a saw or rubs them with sandpaper to remove the depressed center (hereinafter referred to as "chalk grinding work").

As a result, the billiard choke is shaken during the chuck grinding operation, and the top surface of the billiard choke is hard to be ground smoothly.

In addition, during the chalk grinding operation, the chalk powder is blown around, resulting in coughing and dirty surroundings.

In addition, in the chalk grinding operation, since only one billiard choke can be grinded, when the billiard chalk to be ground is large, chalk grinding work takes much time.

Disclosure of the Invention The present invention has been devised in order to solve the above-described problems, and it is an object of the present invention to provide a billiard chalk grinding machine capable of grinding a top surface of a billiard choke flatly, The object of the present invention is to provide a grinding apparatus.

According to another aspect of the present invention, there is provided a billiard choke grinder having a case opened at an upper side thereof; A lid which covers the upper side of the case to form a closed space and has a first guide hole formed in a longitudinal direction of the case; A tray detachably installed on a bottom surface of the case, the tray having a plurality of air holes into which billiard chokes are inserted, and a second guide hole formed at a position corresponding to the first guide hole; A grinding plate located on the upper side of the tray and pressing the billiard choke loaded in the tray in a vertical direction; A sandpaper provided on a lower surface of the grinding plate and contacting the upper surface of the billet choke; A pressing plate positioned above the grinding plate; A plurality of springs between the grinding plate and the pressure plate, one end of which is coupled to the grinding plate and the other end of which is coupled to the pressure plate; A first body positioned above the lid, and a second body coupled to the pressure plate through the first guide hole, wherein the first body is pushed in a vertical direction or moved in the longitudinal direction of the case along the first guide hole Handles; And a second shaft having a first shaft and a second shaft having a larger diameter than the first shaft, wherein the second shaft is engaged with a first shaft hole formed in a central portion of the pressure plate, and the first shaft is formed in a central portion of the pressure plate The second shaft passes through the first shaft hole and the second shaft hole formed in the central portion of the grinding plate in order and is coupled to the center of the lower surface of the second body, Axis;

First, when the user presses the handle in the vertical direction, the separation preventing axis prevents the spring plate from twisting due to the displacement of the pressure plate and the grinding plate, so that the force of pressing the pressing plate by the user is uniformly transmitted to the grinding plate through the spring, It can evenly grind.

Second, the chalk grinding operation is performed in the closed space of the case, so that the chalk powder can not be blown to the outside. This can prevent coughing and contamination of the surroundings.

Third, since the chuck grinding operation can be performed all at once in a state in which a plurality of billiard chokes are loaded on the tray, the chuck grinding operation time can be shortened.

1 is a perspective view of a billiard choke grinding apparatus according to an embodiment of the present invention.
Fig. 2 is an exploded view of the billiard choke grinding apparatus shown in Fig. 1. Fig.
Fig. 3 is a view showing the section III-III shown in Fig. 1. Fig.
4 is a view showing a state in which the operator grasps the billiard chokes by moving the handle to the right along the longitudinal direction of the case while holding the handle shown in Fig.
Fig. 5 is a view showing a state in which the operator grasps the billiard chokes by moving to the left along the longitudinal direction of the case while the handle shown in Fig. 1 is being pressed.

Hereinafter, a billiard choke grinding apparatus according to an embodiment of the present invention will be described in detail.

1 is a perspective view of a billiard choke grinding apparatus according to an embodiment of the present invention. Fig. 2 is an exploded view of the billiard choke grinding apparatus shown in Fig. 1. Fig. Fig. 3 is a view showing the section III-III shown in Fig. 1. Fig.

1 to 3, a billet chalk grinding apparatus 1 according to an embodiment of the present invention includes a case 10, a lid 20, a tray 30, a grinding plate 40, 50, a pressure plate 60, a spring 70, a handle 80, and an anti-departure shaft 90.

The case 10 is a rectangular box hollow. The upper side of the case 10 is open. A step 11 is formed in which the lid 20 is placed along the inner circumferential surface of the case 10.

The lid 20 is placed on the step 11. When the lid 20 is placed on the step 11, the upper side of the case 10 is closed and the tray 30, the grinding plate 40, the sandpaper 50, the pressure plate 60, the spring 70, A sealed space S into which the sealing member 90 is inserted is formed. A first guide hole 21 is formed in the center of the lid 20 in the longitudinal direction of the case 10.

The first guide hole 21 is made to have a width of 5 mm in order to minimize the chalk dust escaping from the mill-shaped space S to the outside during the chuck grinding operation.

The tray 30 is detachably mounted on the bottom surface of the case 10. Six legs 31 are formed on the lower surface of the tray 30 and six grooves 12 are formed on the bottom surface of the case 10 to insert six legs 31 therein.

A plurality of billiard chokes (C) are stacked on the tray (30). For this, six holes 32 are formed in the upper surface of the tray 30, into which the billiard chokes C are inserted. As a result, the six billiard chokes C can be grinded at a time. Of course, it is possible to grind more billiard chokes C at the same time by increasing the number of the apertures 32.

On the upper surface of the tray 30, a second guide hole 33 is formed at a position corresponding to the first guide hole 21. The second shaft 92 of the anti-departure shaft 90 is moved along the second guide hole 33 in the longitudinal direction of the case 10.

The grinding plate 40 is positioned on the upper side of the tray 30 and presses the billiard choke C loaded in the tray 30 in the vertical direction. A first shaft hole 41 through which the first shaft 91 of the separation preventing shaft 90 passes is formed at the center of the grinding plate 40.

The sandpaper 50 is provided on the lower surface of the grinding plate 40 so as to be replaceable with a screw. The sandpaper 50 is brought into close contact with the upper surface of the billiard choke C and grinds the billiard choke C while reciprocating right and left along the longitudinal direction of the case 10.

The pressure plate 60 is positioned on the upper side of the grinding plate 40. A second shaft hole 61 through which the first shaft 91 of the separation preventing shaft 90 passed through the first shaft hole 41 of the grinding plate 40 passes is formed at the center of the pressure plate 60.

Four springs 70 are vertically positioned between the grinding plate 40 and the pressure plate 60. One end of the spring 70 is connected to the edge portion of the grinding plate 40 and the other end is connected to the edge portion of the pressing plate 60.

A protrusion 42 with an insertion hole (not shown) through which one end of the spring 70 is inserted is connected to the grinding plate 40 so that one end of the spring 70 can be connected to the grinding plate 40. [ And a protrusion 62 in which an insertion hole (not shown) is formed in which the other end of the spring 70 is inserted is formed in the pressure plate 60 so that the other end of the spring 70 is connected to the pressure plate 60 Is formed at the edge portion of the pressure plate (60).

The handle 80 is composed of a first body 81 and a second body 82. The first body 81 is located above the lid 20 and can be held by an operator. The second body (82) passes through the first guide hole (81) and is screwed to the pressure plate (60).

The anti-departure shaft 90 is composed of a first shaft 91 and a second shaft 92. The diameter of the first shaft 91 is smaller than the diameter of the second shaft 92. The first shaft 91 can pass through the first shaft hole 41 of the grinding plate 40 but the second shaft 92 can not pass through the first shaft hole 41 and the second shaft hole 92 ). The diameter of the second shaft 92 is smaller than the width of the second guide hole 33 and can be moved along the second guide hole 33 in the longitudinal direction of the case 10.

The first shaft 91 passes through the first shaft hole 41 of the grinding plate 40 and the second shaft hole 61 of the pressing plate 60 and is then coupled to the center of the lower surface of the second body 82. A coupling hole 82a through which the first shaft 91 is inserted is formed in the center of the lower surface of the second body 82. Serration (not shown) is formed on the inner circumferential surface of the engaging hole 82a and the outer circumferential surface of the first shaft 91 so that the first shaft 91 is not rotated in the engaging hole 82a.

Hereinafter, a method of grinding a billiard choke using a billiard choke grinding apparatus according to an embodiment of the present invention will be described.

4 is a view showing a state in which the operator grasps the billiard chokes by moving the handle to the right along the longitudinal direction of the case while holding the handle shown in Fig. The vertical straight arrows shown in Fig. 4 indicate the direction in which the operator presses the handle, and the horizontal straight arrows indicate the direction in which the operator moves the handle to the right along the longitudinal direction of the case.

Fig. 5 is a view showing a state in which the operator grasps the billiard chokes by moving to the left along the longitudinal direction of the case while the handle shown in Fig. 1 is being pressed. The vertical straight arrows shown in Fig. 5 indicate the direction in which the handle is pressed, and the horizontal straight arrows indicate the direction in which the operator moves the handle to the left along the longitudinal direction of the case.

Referring to FIGS. 2, 3, 4 and 5, the second body 82 of the handle 80 is passed through the first guide hole 21 of the lid 20.

The six legs of the tray 30 are inserted into the grooves 12 of the bottom surface of the case 10. The tray 30 is fixed to the bottom surface of the case 10.

Six billiard chokes (C) are inserted into the apertures (32).

The sandpaper 50 is fixed to the lower surface of the grinding plate 40 with screws.

The four corner portions of the grinding plate 40 and the four corner portions of the pressure plate 60 are connected by the spring 70. [

The first shaft hole 91 of the separation preventing shaft 90 is passed through the first shaft hole 41 of the grinding plate 40 at the back of the grinding plate 40 and the first shaft hole 41 is pushed to the second shaft hole 41, And the end portion of the first shaft 91 is serration-engaged with the coupling hole 82a of the second body 82 after passing through the second shaft 61.

The lid 20 is placed on the step 11 of the case 10. The grinding plate 40 is put on the billet choke C and the sandpaper 50 is brought into contact with the upper surface of the billet choke C.

The handle 80 and the pressure plate 60 are screwed together.

The operator holds the first body 81 and pushes it in the vertical direction. The second body 82 pushes the pressure plate 60 in the vertical direction. The pressure plate 60 compresses the spring 70. The spring 70 pushes the grinding plate 40 in the vertical direction to bring the sandpaper 50 into close contact with the upper surface of the billet choke C. The first shaft 91 of the departure prevention shaft 90 descends along the second shaft hole 61 and the first shaft hole 41.

As shown in Fig. 4, when the operator pushes the handle 80 and moves to the right to move the sandpaper 50 to the right, and when the operator holds the handle 80 as shown in Fig. 5 And moves the sandpaper 50 to the left side. This is repeated, and the upper surface of the billiard choke C is ground with the sandpaper 50. The anti-departure shaft 90 prevents the pressure plate 60 and the grinding plate 40 from being displaced from each other while the sandpaper 50 moves left and right. As a result, the spring 70 is prevented from being twisted, and the force by which the user presses the pressure plate 60 can be uniformly transmitted to the grinding plate 40 through the spring 70. [

Claims (4)

A case whose upper side is opened;
A lid which covers the upper side of the case to form a closed space and has a first guide hole formed in a longitudinal direction of the case;
A tray detachably installed on a bottom surface of the case, the tray having a plurality of air holes into which billiard chokes are inserted, and a second guide hole formed at a position corresponding to the first guide hole;
A grinding plate located on the upper side of the tray and pressing the billiard choke loaded in the tray in a vertical direction;
A sandpaper provided on a lower surface of the grinding plate and contacting the upper surface of the billet choke;
A pressing plate positioned above the grinding plate;
A plurality of springs between the grinding plate and the pressure plate, one end of which is coupled to the grinding plate and the other end of which is coupled to the pressure plate;
A first body positioned above the lid, and a second body coupled to the pressure plate through the first guide hole, wherein the first body is pushed in a vertical direction or is moved in the longitudinal direction of the case along the first guide hole Handles; And
And a second shaft having a first shaft and a second shaft having a larger diameter than the first shaft, the first shaft being engaged with a first shaft hole formed at a central portion of the pressure plate, And the second shaft is coupled to the center of the lower surface of the second body through the first shaft hole and the second shaft hole formed in the central portion of the grinding plate in order and the second shaft is moved along the second guide hole in the longitudinal direction of the case, And a billet chalk grinding device for grinding the billet. The apparatus of claim 1, wherein a step is formed along the inner circumferential surface of the case to place the lid, and when the lid is placed on the step, the tray, the grinding plate, the sandpaper, And a closed space into which the billet is inserted is formed. The billiard chalk grinding apparatus according to claim 1, wherein a plurality of legs are formed on a lower surface of the tray, and a plurality of grooves are formed on a bottom surface of the case to insert the plurality of legs. [2] The apparatus according to claim 1, wherein the second body is formed with a coupling hole into which the first shaft is inserted, and an inner peripheral surface of the coupling hole and an outer peripheral surface of the first shaft, And a serration to be engaged with each other is formed.
KR1020130084460A 2013-07-18 2013-07-18 Apparatus for grinding billiard chalk KR20150010059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130084460A KR20150010059A (en) 2013-07-18 2013-07-18 Apparatus for grinding billiard chalk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130084460A KR20150010059A (en) 2013-07-18 2013-07-18 Apparatus for grinding billiard chalk

Publications (1)

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KR20150010059A true KR20150010059A (en) 2015-01-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020130084460A KR20150010059A (en) 2013-07-18 2013-07-18 Apparatus for grinding billiard chalk

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210146851A (en) 2021-11-17 2021-12-06 조명구 Trimmer of billiard chalk
KR20220002736U (en) 2021-05-11 2022-11-18 전영선 Billiard chalk grinder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220002736U (en) 2021-05-11 2022-11-18 전영선 Billiard chalk grinder
KR20210146851A (en) 2021-11-17 2021-12-06 조명구 Trimmer of billiard chalk

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