TWM515446U - Manual circular blade grinder - Google Patents

Description

Manual round blade grinder

This creation is about a sharpener, especially a manual round blade grinder.

In the sewing and patchwork work, the Rotary Cutter is used with the cutting pad and the ruler to cut the fabric into the desired shape, strip and work accurately and efficiently. In addition to cutting, rotary cutters are also suitable for cutting materials such as paper.

The blade used for the rotary cutter is a rolling circular blade that can be replaced in a pattern for cutting of different striped patterns such as straight lines, waves or perforations. Commonly used round inserts are 28, 45 and 60 mm in diameter, and 18 mm are less used.

Rotating cutters, like other tools, can passivate and reduce the cutting efficiency after a period of use. There are only two ways to solve this problem. One is to replace the round blade, and the other is to use a sharpener for grinding.

Since the special blade for the round blade is electric, the structure is complicated and expensive, it is not cost-effective for the average individual user, and is designed for the One Size, that is, one grinder can only grind a circular blade of a fixed diameter. If you want to meet the needs of sharpening work, you have to buy grinders of different specifications, which is extremely uneconomical.

This creation is made to solve the above problems, and its purpose is to provide one A manual round blade grinder can grind round blades of different diameters to greatly reduce the burden on consumers.

The manual circular blade grinder for realizing the present invention comprises a casing defining a hollow chamber internally, the hollow chamber being vertically separated by a partition, the partition having a central hole; a carrying device comprising a plurality of An elastic member of the partition, and a retainer supported on the upper and lower sides of the elastic member, the upper surface of the retainer is provided with a plurality of concentric circular grooves for respectively carrying round blades of different diameters, and a central passage and an opening; The clamping device comprises a lower clamping portion and an upper clamping portion, which are in the same axis, the lower clamping portion is composed of an elastic element, a lower disk holder and a lower clamping plate, the elastic element is arranged at the bottom of the housing The lower holder is slid up and down in the central hole of the partition and supported by the elastic member; the lower chuck is assembled to the central passage of the retainer and supports rotation of the lower housing; a grinding device includes a vermiculite and an upper vermiculite, the lower vermiculite supporting the opening of the retaining plate and supporting the partitioning plate to move up and down, and being held in tension by an elastic member to grind the lower blade portion of the circular blade; Opened and closed to the housing and can be interlocked with the housing, the upper cover includes a support plate fixed to the inner side, the support plate has a pair of the retaining plate when the upper cover is locked to the housing Pressing the mast down, causing the lower chuck and the lower meteorite to float out of the retainer; the upper vermiculite of the grinding device supports the lower movement of the support plate and is held in a tensioned state by an elastic member to grind the circle An upper blade portion of the blade; and a handle rotatably held by the upper cover, having a handle with the upper grip portion, the upper grip portion including an upper chuck, the upper chuck being An elastic element is held in tension.

The elastic member used in the carrying device, the holding device and the grinding device is a compression spring that acts as a compressive force.

The outer snare of the upper chuck is a clamping pad made of a material having a high coefficient of friction.

The retainer further includes a rod groove extending from the outer edge to the central passage, and has a top rod pivotally connected to the rod groove, and an outer end of the top rod extends upward to form a rod handle.

The front end of the housing is pivotally connected to a locking member. The locking member is pivotally connected to a locking member. The upper end of the locking member defines a locking portion. The front end of the upper cover has a locking portion. The locking portion is interlocked with each other to hold the upper cover in a locked state.

The lower chuck is supported for rotation of the lower housing by a bearing. The upper portion of the lower chuck forms a recess for receiving the lower portion of the upper chuck.

The effect of this creation against the prior art lies in the manual operation, light structure, convenient storage, easy carrying, and suitable for round blades of different grinding diameters, one can meet the needs of sharpening work, and is extremely economical.

The detailed technical contents and other objects and features of the present invention can be fully understood by referring to the following description of embodiments with reference to the accompanying drawings.

10‧‧‧Manual round blade grinder

20‧‧‧shell

21‧‧‧ hollow room

22‧‧‧Baffle

23‧‧‧ center hole

24‧‧‧ pivot

25‧‧‧Lock

26‧‧‧Connecting parts

27‧‧‧Locking parts

28‧‧‧Locking Department

29‧‧‧Lower base

30‧‧‧ Carrying device

31‧‧‧Flexible components

32‧‧‧

33‧‧‧ round slot

34‧‧‧Central Channel

35‧‧‧ openings

36‧‧‧ rod slot

37‧‧‧Axis

40‧‧‧Clamping device

41‧‧‧Flexible components

42‧‧‧ lower seat

43‧‧‧ Lower chuck

44‧‧‧ bearing

45‧‧‧ Groove

46‧‧‧Upper chuck

47‧‧‧Flexible components

48‧‧‧Clamping pad

50‧‧‧ grinding device

51‧‧‧ Lower meteorite

52‧‧‧ screws

53‧‧‧ Lower Stone Block

54‧‧‧Flexible components

55‧‧‧Upper meteorite

56‧‧‧ screws

57‧‧‧Upper stone seat

58‧‧‧Flexible components

60‧‧‧Upper cover

61‧‧‧Support board

62‧‧‧ hook

63‧‧‧Cards

64‧‧‧Mast

65‧‧‧上基

70‧‧‧handle

71‧‧‧Handle

72‧‧‧ Assembly room

80‧‧‧Pole

81‧‧‧ card slot

82‧‧‧ rod handle

90‧‧‧ round blade

Figure 1 is an external view of the closed state of the manual circular blade grinder.

Figure 2 is an external view of the creation open state.

Figure 3 is an exploded view of the composition of the creation.

Figure 4 is a rear cross-sectional view of the creation showing the state in which the circular blade is subjected to grinding.

As shown in Figures 1 to 4, the present manual round blade grinder 10 It consists of a casing 20, a carrying device 30, a clamping device 40, a grinding device 50, an upper cover 60 and a handle 70. Wherein: the casing 20 has a cylindrical shape, and the casing wall defines a hollow chamber 21 which is vertically separated by a radial partition 22 having a central hole 23 and a surface protruding from the surface The lower base 29, the role of which will be described later, is temporarily stated. In addition, the rear end of the housing 20 has a pivot 24 for pivotally connecting the upper cover 60 to open and close the upper cover 60 to the housing 20; the front end of the housing 20 has a latch 25 connected by a pivot The connecting member 26 of the housing 20 and a locking member 27 pivotally connected to the connecting member 26 are configured to lock the upper cover 60 to the housing 20.

The carrying device 30 includes a plurality of elastic members 31 and a retainer 32. The elastic members 314 are separately disposed on the partition 22 of the housing 20 to support the retainer 32, so that the retainer 32 can be moved downward when the upper cover 60 is closed, and When the upper cover 60 is opened, it serves as a power source for the retainer 32 to return to its original position. The retainer 32 is oblate and supported on the elastic member 31, and the upper surface thereof is provided with at least one circular groove 33. In the embodiment of the drawing, the retainer 32 includes three concentric circular grooves 33 for carrying different diameters. The circular blade 90 is, for example, 28, 45 or 60 mm or the like. Further, the retainer 32 has a central passage 34 and an opening 35 for allowing the lower turntable 43 of the holding device 40 and the lower vermiculite 51 of the grinding device 50 to float out of the retainer 32 when the retainer 32 is moved downward.

The holding device 40 includes a lower clamping portion (not numbered) which is composed of an elastic member 41, a lower disc holder 42 and a lower chuck 43 which is disposed at the center of the bottom of the housing 20. The lower hub 42 is slid up and down by the central hole 23 of the partition 22 and supported by the elastic member 41. The lower chuck 43 is assembled to the central passage 34 of the retainer 32 to engage the circular chuck 90 from above and below with the upper chuck 46 described later, and is supported by the lower bracket 42 through a bearing 44 to support the circle. The blade 90 is rotated while a groove 45 is formed in the upper portion, and its action is also left to be described later.

The grinding device 50 includes a lower vermiculite 51 which is locked to the lower stone seat 53 by a screw 52. The lower stone seat 53 is held up and down by the lower base 29 of the partition 22 and supported by an elastic member 54 to The vermiculite 51 is maintained in a tensioned state to be responsible for grinding the lower edge portion of the outer edge of the circular blade 90. The grinding device 50 further includes a top rock 55 that is locked to a top stone block 57 by a screw 56. The upper stone seat 55 is held up and down by the upper base 65 of the upper cover support plate 61 and supported by an elastic member. 58. The upper vermiculite 55 is thereby held in a tensioned state to perform the grinding operation of the upper blade portion of the circular blade 90.

The upper cover 60 is shaped to match the housing 20, and has a support plate 61 fixed in the radial direction, a hook portion 62 protruding from the rear end, and a locking portion 63 protruding from the front end. The hook portion 62 can be Cooperating with the pivot 24 of the housing 20, the upper cover 60 can be opened and closed with the pivot 24 as an axis for covering the housing 20; the locking portion 63 can be locked with the locking portion 28 at the front end of the locking member 27. The buckle, in this way, keeps the upper cover 60 in a locked state. Other equivalent pivoting and locking means may also be employed, and are not limited by the above embodiments. In addition, the support plate 61 of the upper cover 60 further includes a pair of separately disposed masts 64 and an upper base 65. The mast 64 can press the retainer 32 downward when the upper cover 60 is closed, thereby causing the lower chuck 43 and the lower meteorite. 51 floats from the central passage 34 and the opening 35 of the retainer 32, respectively; the upper base 65 is intended to support the upper rocker 57 of the grinding device 50 and the upper vermiculite 55 moving up and down.

The handle 70 has a meandering shape and is rotatably held by the upper cover 60 by a manual operation. The handle 71 forms a fitting chamber 72 for assembling the upper clamping portion (not numbered) of the clamping device 40. The portion cooperates with the lower gripping portion to allow the circular blade 90 to rotate as the handle 70 rotates to receive the grinding of the grinding device 50.

The upper clamping portion of the clamping device 40 and the lower clamping portion are in the same axis, and are formed by an upper chuck 46 and an elastic member 47 that is held up and down by the fitting chamber 72 of the handle 70. The two ends of the elastic member 47 are respectively abutted against the upper ends of the upper chuck 46 and the fitting chamber 72 to maintain the upper chuck 46 in a tensioned state by its elastic force. In addition, the outer circumference of the upper chuck 46 is fitted with a clamping pad 48 which is made of a synthetic resin with a high coefficient of friction, whereby a frictional force can be generated between the contact surface of the circular blade 90 to achieve a driving circle. The role of the blade 90 with the rotation. The lower shape of the upper chuck 46 coincides with the groove 46 in the upper portion of the lower chuck 43. This design can be inserted into the groove 46 of the lower chuck 43 after passing through the circular blade 80 at the lower portion of the upper chuck 46, thereby achieving the supporting effect. .

In the embodiment of the drawings, the elastic members 31, 41, 47, 54, 58 are each a compression spring that acts as a compressive force, and other equivalent elastic members may be employed without being limited by the compression spring.

When grinding, as shown in Figs. 2 and 4, the circular blade 90 is placed flat on a corresponding circular groove 33 of the retainer 32, the upper cover 60 is closed, and the upper cover 60 is locked by the lock 25, at which time the retainer 32 is covered by the upper cover. The pressure of the mast 64 is lowered, so that the lower chuck 43 and the lower vermiculite 51 float out of the retainer 32, while the holding pad 48 and the lower chuck 43 of the holding device 40 sandwich the circle from above and below the circular blade 90, respectively. The blade 90 then rotates the handle 70 by hand, so that the circular blade 90 can receive the grinding of the upper vermiculite 55 and the lower vermiculite 51 as the handle 70 rotates together, so that the grinding operation can be completed by rotating the handle 70 for several times, and the operation is easy.

When the grinding is completed, the locking member 27 is rotated upward to move the locking member 27 upward, and after the locking portion 28 and the locking portion 63 are unlocked, the upper cover 60 can be opened, and the force applied to the retaining plate 32 disappears. , then the 32 is in the elastic element The elastic force of the member 31 is automatically returned to the original position, so that the user can remove the circular blade 90 from the retainer 32.

Since the round blade 90 is laid flat on the retainer 32, and the edge is sharp, it is difficult to take. Therefore, in a preferred embodiment, the retainer 32 further includes an elongated rod slot 36 extending from the outer edge to the central passage 34 for receiving a jack 80 having a shaft portion 37 formed therein. The outer end of the jack 80 extends upwardly to form a lever 82. The bottom portion has a slot 81 for cooperating with the shaft portion 37 to pivotally connect the jack 80 to the retainer 32 so as to be pressed downwardly from the lever 82. The rod 80 is tilted like a seesaw so that the inner end of the jack 80 can be raised one side from below the circular blade 90 to facilitate removal of the circular blade 90 from the retainer 32.

Of course, the above description is only a preferred embodiment of the present invention, and thus does not limit the scope of the patent of the present invention. Any equivalent structure or equivalent process transformation using the contents of the present specification and the drawings may be directly or indirectly applied to Other related technical fields are included in the scope of patent protection of this creation.

10‧‧‧Manual round blade grinder

20‧‧‧shell

21‧‧‧ hollow room

22‧‧‧Baffle

23‧‧‧ center hole

29‧‧‧Lower base

31‧‧‧Flexible components

32‧‧‧

33‧‧‧ round slot

34‧‧‧Central Channel

41‧‧‧Flexible components

42‧‧‧ lower seat

43‧‧‧ Lower chuck

44‧‧‧ bearing

45‧‧‧ Groove

46‧‧‧Upper chuck

47‧‧‧Flexible components

48‧‧‧Clamping pad

50‧‧‧ grinding device

51‧‧‧ Lower meteorite

54‧‧‧Flexible components

55‧‧‧Upper meteorite

58‧‧‧Flexible components

60‧‧‧Upper cover

61‧‧‧Support board

65‧‧‧上基

70‧‧‧handle

71‧‧‧Handle

72‧‧‧ Assembly room

90‧‧‧ round blade

Claims (7)

A manual circular blade grinder comprising: a casing defining a hollow chamber therein, the hollow chamber being vertically isolated by a partition having a central hole; a carrying device comprising a plurality of spacers disposed on the partition An elastic member, and a retainer supported on the upper and lower sides of the elastic member, the upper surface of the retainer is provided with a plurality of concentric circular grooves for respectively carrying circular blades of different diameters, and a central passage and an opening; a clamping device Included in the lower clamping portion and an upper clamping portion, which are in the same axis, the lower clamping portion is composed of an elastic member, a lower disc holder and a lower chuck, the elastic member is disposed at the bottom of the housing; The disc holder is slid up and down in a central hole of the partition plate and supported by the elastic member; the lower chuck is assembled to the central passage of the retainer and supports rotation of the lower disc holder; a grinding device including a rock and a rock An upper vermiculite supporting the opening of the retaining plate and supporting the partition plate to move up and down, and being held in a tensioned state by an elastic member to grind the lower blade portion of the circular blade; an upper cover opening and closing pivot And the housing is interlocked with the housing, the upper cover includes a support plate fixed to the inner side, the support plate having a pair of pressing the support plate when the upper cover is locked to the housing a mast that floats the lower chuck and the lower vermiculite; the upper vermiculite of the grinding device supports the lower movement of the support plate and is held in a tensioned state by an elastic member to grind the upper blade of the circular blade And a handle rotatably held by the upper cover, having a handle with the upper clamping portion, the upper clamping portion including an upper clamping plate, the upper clamping portion The disc is held in tension by a resilient member. A manual circular blade grinder as claimed in claim 1, wherein the elastic member used in the carrying device, the holding device and the grinding device is a compression spring in which a compressive force acts. A manual circular blade grinder as claimed in claim 1, wherein the outer snare of the upper chuck is a gripping pad made of a material having a high coefficient of friction. The manual circular blade grinder as claimed in claim 1, wherein the retainer further comprises a rod groove extending from the outer edge to the central passage, and having a ram pivotally connected to the rod groove, the outer side of the ejector The end extends upward to form a shank. The manual circular blade grinder of claim 1, wherein the front end of the housing is pivotally connected to a lock, and the lock is pivotally connected by a connecting member and a locking member, and the upper end of the locking member forms a lock. The front end of the upper cover has a locking portion that can be interlocked with the locking portion to maintain the upper cover in a locked state. A manual circular blade grinder as claimed in claim 1 wherein the lower chuck is supported for rotation of the lower housing by a bearing. A manual circular blade grinder as claimed in claim 1 wherein the upper portion of the lower chuck forms a recess for receiving the lower portion of the upper chuck.