TWI241936B - Grinder with fast installable/detachable grinding disc - Google Patents

Abstract

A grinder with fast installable/detachable grinding disc, including: a main body; a rotary shaft disposed at bottom end of the main body, a shaft rod of the grinding disc being mounted in the shaft hole of the rotary shaft, whereby the grinding disc is drivable by the rotary shaft; a rotary switch mounted on the main body; a linking device mounted at bottom end of the main body and drivable by the rotary switch; and a detent mechanism mounted in the rotary shaft. When the rotary switch is rotated to drive and move the linking device to a first position, the detent mechanism is moved into the shaft hole of the rotary shaft to fix the shaft rod of the grinding disc in the shaft hole. When the rotary switch is rotated to drive and move the linking device to a second position, the detent mechanism is moved out of the shaft hole of the rotary shaft to release the shaft rod of the grinding disc. Accordingly, the grinding disc is fast replaceable by means of simple operation.

Description

1241936 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a grinding device. In detail, the machine can be quickly replaced by a simple operation. — Kind of Grinding [Previous Technology] π Press, the researchers, regardless of whether it is a pneumatic or electric type. Various grinding discs have different research ;: the bottom end of the light effect, so when grinding different objects often need to replace the non-grinding grinding or throwing the conventional grinder structure, the rotor (air:; end system-eccentric shaft, the bottom of the shaft The end fixer (two movers) has a screw hole; and the center of the top surface of the grinding disc is provided with a screwdriver with a screw hole in the nut to receive the shaft. Wang, use the screw to screw Follow the traditional research = for: protection. 'The wrench must be screwed out or screwed into the screw hole from the gap η between the protective cover and the grinding disc, however; the known bolt is inconvenient from the screw hole, cover: white head The operation phase of replacing the grinding disc is blocked by the protective cover. Therefore, the wrench is not easy to cover, the position of the nut is not visible, and the position of the nut is not fixed; the shaft system must always pass through After multiple operations, it can be set ": Difficulty J, use. In addition, the replacement of the grinding discs must be done with the help of workers, and it is also inconvenient to co-organize Λmeda (such as no tools can be found). It is not a good one; = increase Inconveniences and restrictions 11 When the grinding disc is set on the shaft 'in the conventional structure', the 6th 1241936

V. Description of the invention (2) The number of rotation of the grinding disc [Invention of the grinding machine of the present invention, but the invention of the disc does not need to be borrowed [implemented to make and reach the combined drawings in detail] Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Home. The sixth diagram and seventh diagram are located in the closed eighth diagram. The ninth, structure and action of the eleventh and twelfth weeks, and also the content] Another way to help provide quick assistance] The effectiveness of your review is described in the present development The first series of the first series, the first series of the first series, the linkage display of the turning system, and the position display of the ten-series system. Graph overview Graph overview is a waste of time. The main reason is to remove and remove the grinding disc. The purpose is to provide a tool. 0 is to provide a kind of grinding machine, which can better understand the present invention when changing the grinding method. The present invention is described below_better =, wherein the arrangement of the drawings is a perspective view of a preferred embodiment Stereo partial sectional view. Figure is a longitudinal sectional view. Figure is an exploded perspective view. A top view of the garment and a bottom perspective view of the push shaft. The actuator is installed on the bottom of the rotating shaft: machine: a partial cross-sectional view of the bottom view of the knob, shown in the fifth figure, shown in the seventh figure, not shown in the figure. The purpose of the embodiment is to show the features of the collocation film in the external position. The closed position of the insurance is not the position of the mechanism.

Page 7 1241936 V. Description of the invention (3) First, please refer to the third to third drawings, which refer to the grinding machine (1 0) provided by the preferred embodiment of the present invention. The grinding machine includes: two bodies (20), A space (22) is provided in the interior for a driving device (2 5). In it again. Since the grinding machine shown in this embodiment is a pneumatic type, the driving device is an air cylinder and can drive a driving shaft (2 6). A hollow, cylindrical body (30), as shown in the fourth figure, has a larger inner diameter than the body and is provided at the bottom of the body. Three equally spaced hollow portions (34) are formed between the three connecting portions. In the two embodiments, the barrel (30) is formed by a hollow circular ring portion, and

It consists of a set of soft sheaths set on the periphery of the ring. One ^ one knob (40), as shown in the first and second figures, is composed of a solid arc body (42) in this embodiment, so that the knob (40) forms a circular configuration. The arc-opening v-body (4 2) ring is placed on the outer periphery of the barrel body (30), and can be positioned at an angle on the barrel body. The inner peripheral surface of each of the arc-shaped bodies (42) is provided with two elastic pieces (44), and each of the elastic pieces is recessed with a locking portion (441), and each of the locking portions can be latched to the book (〇 ) One of several positioning portions (201) protruded from the peripheral surface, so that the angular displacement of the knob (40) has a positioning effect.

2: Linkage device (A), including: a bracket (50), a tray (60), and ^ (70), is installed at the bottom of the body and can be driven by the knob. The f bracket (50) has a hollow disk-shaped body portion (52) and three leg brackets (5 4) arranged on the body portion and extending upward. V 乜 (5 6) in three oblique directions is arranged on the body (5 2) at equal intervals. The bracket (50)

1241936

V. Description of the invention (4) The buckle (4) is respectively extended to the three penetrating holes), and each is fixed to $% ^ η η,, μ.. Η,. Μ by one screw (5 9). The button (40), as shown in the second picture. With this, turning the 疋 button (40) of the day guard can cause the bracket (50) to be angularly displaced.栌 (jmrj is also a hollow disk body. Its top surface is provided with three tracks at equal intervals. Γ2: The longitudinal direction of the groove (62) is parallel to the radial direction of the tray (60). To get the shape along the track, the circle; the center of the heart; ί = (/ 4) is a circle, -L / music bias ^ 0, and Asia and Africa are located in the middle of the three push pieces ~. Column (75), respectively fixed to the three push pieces (70). After the tray is loaded into the tray (one 60), then the three screws (65) are used to # =. &Amp; As shown in the second figure, the tray is fixed to the cylinder body = 第 = 和; the film is flatly attached to the bottom surface of the body part (52) of the bracket; j, the younger brother, and the picture, the three guide pillars (75) are respectively extended When entering the three (.7 = ;? 0-), it can be displaced through the three guide grooves (56); the guide 『3 2 ▼ 推 two pushers (7〇). Please refer to the fifth figure, the linkage device : ⑴ has -t empty part inside, when the push piece (70) is displaced, $ moves in ^ moves out of the hollow part (3), thereby changing the inner diameter of the hollow part.-Rotary shaft (80), please refer to the sixth In the figure, the central axis of the bottom surface = 0) is known at the bottom, and passes through the shaft hole (82). Second slideway (86), The way of the slideway (84) is set at the bottom end of the shaft, and is the same as the slideway (84). The two slideways (86) are parallel and respectively located at the

Page 9 1241936 V. Description of the invention (5): card = mechanism (B), with two detents (90) and one actuator (100). A hand piece (90) is provided on the slide rail (84), and the slide rail of the second engaging portion of the shaft hole (82) is displaced. The inner end of each of the detents (90) is provided with a screw-shaped pusher (94). In addition, the stopper (90) is provided on the bottom surface with a cone-shaped one that is externally received by the inner pusher (96) of the stopper, and the two (94) (96) are adjacent to the inner and outer ends of the hand piece, respectively. With proper spacing. Extension work: Γ: 100) has a body part (102) 'and Hi: 〇4)' from the body part, the inside and outside of each foot (1〇4) are recessed-bottom P shift part ( 1 0 5) (1 0 6). The actuator is installed on the rotating shaft (80): two i ~ two feet (104) are respectively accommodated in the two second slideways (84) (9ίΠ ^^^), and can be displaced along the slideways. Each foot part passes between each of the detents, 4, the outer moving part (94) (96), the inner part of each foot (104), ⑽) and the inner and outer pushed parts of each engine (Bai. The body part (102) of the ^ actuating element that can be used is located in the-recess (87) at the bottom end of the shaft (80).-The impeachment (m),-the end is against the body.) The other end is against the inside of the rotating shaft (80), and its elastic energy is the state that the pushed part t is displaced outward. When the outer pushing part (105) is coupled to the outside, # 犄, the actuator is located at the displacement Outside the dead center of the stroke, the body part (10) of the body is exposed outside the rotating shaft (80); when the internal movement σ-) is consumed by the internal pushed part (95), the actuator is inside Stop.每 fii (88) is covered with three pins (89) on the bottom of the shaft (80). Yu =, eight, the two ends of the actuating member (100) are set-concave ⑽), the two Yu Xi-MP knife is overlapped with the two pins (89), when the two concave two ends respectively reach ㈣ ' It can also be used as the inner and outer stops of the moving parts.

1241936

V. Description of the invention (6) The rotating shaft (80) is pivotally connected to the driving device in an eccentric state. The bottom end of the drive / guiyu (2 6) is as shown in the second figure, and can be driven by the driving shaft (2 6 ). The eccentric state is a known structure, and when it rotates, it will produce the # .two axis of rotation. The reciprocating shaft is located in the hollow part (a) of the linkage (A); the height of the action (100) is the same as that of the three pushers (70). For details, please refer to the fourth and eighth figures. This embodiment further includes: _ Bao structure 'is a safety button (110)' is installed in the hollow portion (45) of the arc body j of the knob (40), The bottom of the safety button (11) is provided with two shaft portions (I), and the two shaft portions (1 1 2) are pivotally connected to two concave holes (4 6) of the arc-shaped body (4 2).

, And can be turned. A torsion spring (115) is sleeved on the two shaft portions (HU, the two ends of which are against the safety button (110), and the other end is against the arcuate body, and its elastic energy is such that the safety button (1 1 0) keeps the inner end moving downward to the __ ^ buckle position. In this state, a stopper (ii 4) provided at one end of the safety button is a hollow part (34) that extends into the barrel (30). ), As shown in the ninth figure, and clicked against the side of a connecting portion (32), at this time, the safety button system is in a locked state, so that the knob (40) cannot be turned. A grinding disc (1 5) shown in the first figure is used, and the grinding disc is inserted into a shaft hole (8 2) of 2 转 with a shaft (16) provided in the center of its top surface, such as The third figure. In the normal state, the two latches are in the closed position shown in the seventh figure, and the engaging portion (92) is the thread of the screw two / shaft (1 6). The linkage device (A ) Is in the fifth position, and the three push pieces (70) are in the outward position. = When the user wants to change the abrasive piece, first, as shown in the tenth figure, press the insurance and the outer ^ down to make The stop (114) is tilted upward, Open open portion

1241936 V. Description of the invention (7) = The safety button is in a released position, and it is not locked against the connecting part to rotate :: 2): The self-movement M rotates 40) The position of the clockwise direction is 1 with the angle of the bracket (50) Displacement, so that the bracket (50) is shifted from the fifth / angle to the position of the eleventh figure. The guide of the three push plates (7 0) ϊ # Α 17 along the holding groove (62) of the tray (60) toward Slide inside to a closed position, closing its arcuate end (74). When the three pushers (70) are closed, they are tightly attached to the shaft, and the moving body is 动 2), so that the moving part moves toward the shaft = 丄 subsystem, push 推, move 邛 (105) outside of noon, and switch The inner part of the actuator is pushed and connected to the inner part of the actuator (106). With this ;; :::!; (90) gp " L ^-^ (B4), „Λ; the distance between the shaft U6) = ΐ (92π) is increased. ; From this' Qing is released, can quickly be like ^: Another-when grinding the disc 'in the state of the twelfth figure, the grinding: the rotary knob (40)' to bring the bracket (50) from the first The eleventh figure, the second one moves along the slot (62), no longer ...

The pushed part (96) within the part 系 is pushed in from the moving part ^ I After the return, the push part (94) is connected to the inner push part (105) 'Take this, the 12th page 1241936 V. Invention Explanation (8) The articulation part (92) of the second engine is close again, and then bites on the grinding rod. In this way, the installation of the grinding disc is completed. When the button (40) returns to the position of the ninth figure, the safety button (u torsion spring (11 5) is pushed, so that the stopper (114) is extended into a penetrator, and ^ abuts a connection (32), providing Safety function. Working port (4) According to the installation method of the present invention, the screw of the grinding disc is set in the screw hole formed by the two affinities (92). When the rotation = = the driving device (25) drives, The direction of rotation is opposite to that of the shaft: Therefore, when the grinding disc rotates, the shaft will be intimate with the two and will not be detached. I 乂. It is more important to understand that the present invention does not provide two The stopper is required. The stopper can also fix the shaft of the grinding plate in the shaft hole of the rotating shaft. = 6 and 5 When the present invention is used, the shaft of the grinding plate is not provided with a thread. At least-one or two gaps in the engine can be used to fix the shaft. At the shaft + dry, the above description shows that the structure disclosed by the present invention can be simply done in r: it can quickly Dismantling, assembling and grinding without any work :: The operation process takes only a few seconds, which is quite fast and convenient.

Page 13 1241936 Brief Description of Drawings Figure-Figure is a perspective view of a preferred embodiment of the present invention. The second figure is a perspective partial sectional view of the first figure. The third figure is a longitudinal sectional view of the first figure. The fourth figure is an exploded perspective view of the first figure. The fifth picture is a top view of the linkage device, and the push-pull is located in the outer position. The sixth picture shows a bottom perspective view of the rotating shaft. The seventh diagram is a bottom view of the pivot member and the actuator mounted on the rotating shaft, and shows that the latch member is in the closed position. The eighth figure shows the bottom view of the insurance mechanism installed on the knob. The ninth and tenth diagrams are partial cross-sectional views of the first diagram, showing the structure and operating state of the insurance institution. The eleventh figure is similar to the fifth figure, showing that the slider is in the closed position. The twelfth figure is the same as the seventh figure, showing that the detent is in the extended position.

Page 14 1241936

Brief description of drawing number: Grinder (1 〇) Space (2 2) Body (30) Knob (40) Locking part (4 4 1) Linkage device (A) Tripod (54) Holding groove (6 2 ) Guide post (7 5) Shaft hole (8 2 :) Recess (8 7) Detent (9 0) Outer push (9 6) Foot (1 0 4) Spring (108) Shaft (11 2) Grinding disc (1 5) Body (20) Driving device (2 5) Connection part (32) Arc body (42) Hollow part (4 5) Bracket (50) Guide groove (56) Push piece (70) Hollow part ( a) The first slideway (84) the bottom cover (88) the accommodating part (9 2) the actuator (1 0 0) the outer pushing part (1 0 5) recessed (109) the stopper (11 4) (1 6) Positioning part (2 0 1) Sliding area moving shaft (2 6) Hollow part (34) Spring piece (44) Recessed hole (46) Body part (5 2) Tray (6 0) Curved end (74 ) Rotary shaft (8 0) Second slideway (8 6) Locking mechanism (B) Inner pushing part (94) Body part (1 0 2) Inner pushing part (1 0 6) Pickup button (1 1 〇) Torsion spring (11 5)

Claims (1)

1241936 Sixth, the scope of the patent application can be quickly dismantled the grinding machine, including:-the main body, a drive device, set in the body;, New Zealand on the body, can be protected by human hands to change the mother-linkage The device is set at the bottom of the body :::: Variation position; = Department; when the knob is manipulated, the linking dagger can be linked with the linking position; the garment is placed in the open position and a rotating shaft 'its bottom end system A bottom of a wire driving device is recessed inward, which can be driven by the driving device to rotate a special shaft system provided in the engine; the shaft system is installed in the shaft, and has at least-engine parts and joints; operate the screw When the inner end of each of the two fasteners is installed-when the displacement is between, the-,: The moving clothing is placed in the open position and the closed position hole is removed or the shaft hole is removed. The joint moves into the shaft grinding machine 2 as described in Section II .: The quick-dismountable grinding disc described in item 1 is provided on the shaft. The engine mechanism also includes: at least-the actuating member, which is in the middle position; The interlocking device is in the closed position and the actuation 3! The displacement of each of the detents is driven by the actuation. The quick-dismountable grinding disc described in item 2 above is required for this action; cattle: Xi ;;: The engine mechanism also contains:-an elastic element, which is set to be displaced externally between a ^^ axis, and its elastic energy It is to keep the actuator toward the linkage; 丄 to make the outer end of the actuator exposed to the rotating shaft; to creep out of the component so that 1 = when set, the linkage is pressed against the actuator-to the actuator The shaft moves in; the catch is subject to the actuating member M. Page 16 1241936 6. Scope of patent application. Linkage moves the engaging portion out of the shaft hole. When the linkage device is in the outward position, the actuator is not touched by the linkage device and is located at the outer dead center; The engaging portion of the detent is moved into the shaft hole. 4 · The grinding machine that can quickly disassemble the grinding disc as described in item 3 of the scope of the patent application, wherein: the union and the first and the feet, the displacement, the displacement of the moving parts 5. The grinding machine and the outer part There is a meshing and pushing part for actuating the outer stop. 6. The bottom end of the grinder turning glaze is provided with a pass; to the large-angle shaft hole through the slideway, a stopper is actuated when the foot and the foot are outside. If the application 'where a system is set to be taken away by the foot of the pusher, the department is moved into the light-click after the application' where the system has a system set at the system and the stop with the foot patent model: the extra move The part and the part are worn through the extrapolation of the shaft hole and the extrapolation patent scope: the turn 4 pi} .AJ, / W, J 1 V port entry, one less second slideway, located at the bottom end of the shaft, And intersect; the first slideway can be displaced along the slideway; the body and at least one second slideway extending outward from the body of the body, so that the moving parts can be linked along the slideway stopper in a interlocking manner. Connection; when the operation 'the body is protruding beyond the rotating shaft; the operating part drives the detent to move. The foot of the moving part that can quickly disassemble the grinding disc as described in item 4 is provided with an inner moving part and part on the inside; the stopper is on a plane at night. The inner and outer ends of the palatal surface are received separately. Pushing part, the two driven parts are at W ... ^. Another pushing part is kept at a distance; it extends between the two pushed parts, and the moving part handle is connected to the external actuating part. It is located as a moving part to: This causes the engine to move, so that the attachment of the control mechanism U 4 is moved out of the shaft hole. The bottom end of the quick-dismountable grinding disc described in item 4 is provided with a second slideway with two upper shafts; the 1241936, patent application scope = hand, the structure has two of the above-mentioned latches and one of the above The two moving parts are on the first slideway and are located on the two sides of the shaft hole. The moving parts are in the rehabilitation department. ^, ^ &Quot; The side parts extend outward two above. The feet are respectively provided in the two slideways and are respectively connected to the two detents. The grinder capable of quickly disassembling and abrading the disc as described in item 4 of Shenyan's patent scope. Gan, y, middle: a recess is set at the bottom end of the shaft; the body of the moving part is located in the four parts. & & The f f machine capable of quickly disassembling and abrading the disc as described in item 1 of Shi Shenyan's patent scope, wherein: the linkage device has a hollow portion inside; the rotating shaft is located in the hollow portion. u & ★ The 1st grinder with quick-removable grinding discs as described in item 8 of the patent scope. Among them: the linkage device includes: at least two pushers, which can be displaced in the direction of the turn of the turn; When the linkage device is located in the closed position, the $ pushing piece is displaced inwardly; when the linkage device is in the outwardly position, the waiting pusher is displaced outwardly, so that the inner ends are away from each other, The displacement state of the plate causes each of the detents of the detent mechanism to act. I 0 · The grinding machine capable of quickly disassembling and grinding the grinding disc as described in item 1 of the scope of the patent application, wherein: the body includes: a hollow cylinder body, and the inner circumference t of the cylinder body is provided with a predetermined number of connecting portions at equal intervals. It is connected to the bottom end of the body, and there are hollow parts equal to these connecting parts between the third-class connecting parts; the knob system = again. The outer periphery of the Hai barrel; the linkage device is set in the barrel body, the knob and the 4 linkage device are connected through the hollow parts, so that the knob can be linked with Pei. -^ II · Quickly dismantled grinding disc as described in item 10 of the scope of patent application Page 18 1241936 6. Grinding machine with patent application scope, where: the linkage device includes: a bracket with a hollow disc-shaped body; a certain number of inclined guide grooves are arranged at appropriate intervals. The body and the bracket are connected to the knob through the hollow portions; a tray is also a hollow disk body, and the top surface is provided with rail grooves equal to the guide grooves at equal intervals. The longitudinal direction of the groove is parallel to the radial direction of the tray; the pushing pieces equal to the rail grooves are provided with a guide post on each of the pushing plates, and the pushing plates are respectively arranged in the track grooves, so as to follow the rails. The slot slides; the tray is connected to the bottom surface of the tube Zhiguang 1; the tray and the pusher are attached to the bottom surface of the body of the bracket; = The guide columns of the equal push piece are respectively extended into the guide grooves. The tray and the 'inside shape will be __, A 1 ^ L... ^ &Quot; into the hollow portion; when the bracket is rotated, it can pass through The guides and the guide columns drive the pushers to move. 1 〇. • Quick-removable grinding discs as described in item 丨 丨 of the scope of application for patents < Grinding machine 廿 丄 &, and · The body of the bracket is provided with a predetermined number of questions at appropriate intervals # + π, 4 coffee is like a foot kill. The bracket is respectively extended through the through kings with these feet, and the knob is connected. Grinding. Quickly dismountable grinding disc as described in item 10 of the scope of patent application. Out of R province machine ’, where the knob is a ring shape, and the ring is set on the barrel. Zhiyan 1 Grinding 4 Machines are as described in the 13th patent scope of the application, and the knob is made of at least two arcs. Grinding machine ·, as described in the scope of patent application, the quick-dismountable grinding room, which also includes a safety mechanism, which is located on the knob and the book and the risk mechanism at a snap position and / or released Displacement between positions Page 19 1241936 VI. Patent application park: ϊ ΐ 卡 m ‘The spin-system cannot be rotated’ · It is in the release position T, TT Haining Zhao system can be rotated. 16 · As described in the scope of the patent application, it can be quickly disassembled and ground like a grinding machine: a grinding machine also includes: an insurance machine is attached to the body, and the insurance mechanism can be located in a snap position with Interlocking with a release position: When Tian Qi is in the buckling position, the knob and the barrel are locked ^ so that the force button cannot be turned. When it is in the release position, the knob and the knob are released. Buckle state of the body. ', 1 7 · Quickly dismantled grinding discs and grinders as described in item 16 of the scope of patent application, where ... The insurance mechanism is a safety button with a stop at one end and the insurance button is pivotally connected The knob is displaceable by the knob; the safety button is located at the snap position; the guard is extended into a hollow part of the barrel and clicks against a connecting part; when it is in the released position, the guard is The system is removed from the hollow section. 18 · The grinding machine capable of quickly disassembling the grinding disc as described in item 17 of the scope of the patent application, further comprising: an elastic element provided between the safety button and the knob. The blocking portion is kept moved into a hollow portion. 1 9 · A grinder with a fast-removable grinding disc as described in item 1 of the scope of patent application, wherein: the knob is provided with a hollowed-out part; the safety button is pivoted In the hollow portion. 2 0 · The grinding machine capable of quickly disassembling the grinding disc as described in item 1 of the scope of patent application, wherein ·· The body peripheral surface is provided with a predetermined number of positioning parts; the inner peripheral surface of the knob is provided with a predetermined Number of locks; these locks are coca Page 20