JP3177125U - Manual generator with clutch - Google Patents

Abstract

A manual generator capable of rotating a generator only in a certain direction is provided.
A manual generator having a clutch includes a generator, a rotating handle, a gear box upper lid, a gear box lower lid, and a transmission gear group. The transmission gear group includes a six-speed transmission gear pair 51 and a generator gear 53. A clutch gear 52 is provided between the transmission gear pair 51 and the generator gear 53. The rotation shaft 521 of the clutch gear 52 is slidably disposed between the upper clutch groove of the gear box upper lid 3 and the lower clutch groove 41 of the gear box lower lid 4.
[Selection] Figure 1

Description

  The present invention relates to home appliances, and more particularly to a manual generator having a clutch.

In general, power is supplied to a small household appliance by a battery. However, when using a battery, it is necessary to replace the battery when the power of the battery has been used, and it may be difficult to obtain a new battery especially when traveling or outdoors. is there. Therefore, small household appliances that supply power using a manual generator, such as a flashlight having a manual generator, have appeared on the market.
However, since the effective generator is not provided between the rotary handle and the transmission unit in the manual generator, the generator may not operate normally. That is, the generator rotates forward or backward depending on the rotation direction of the rotary handle. Since the direction of the electric current output by forward rotation or reverse rotation is different, it is not applied to an electric product that can use only a current in a predetermined direction.

  For example, the “handy-type manual generator” of Patent Document 1 includes a housing, a rotary handle, a speed increasing gear mechanism, and a generator. The rotary handle is disposed outside the housing. The generator includes a stator, a rotor, an electric brush, and an output electrode. The output electrode is connected to the output cable. The rotary handle is connected to the speed increasing gear mechanism. The speed increasing gear mechanism is connected to a rotor in the generator. As a feature of Patent Document 1, a grip handle is provided on the opposite side of the position where the rotary handle outside the housing is disposed.

  A rotating shaft is provided at the end of the grip handle. The grip handle is mounted on the housing via the rotation shaft. The grip handle rotates 360 degrees in the forward and reverse directions around the rotation axis. The speed increasing gear mechanism is constituted by a three-stage speed increasing structure. Since the manual generator of Patent Document 1 generates power by rotating the rotary handle 360 degrees in the forward and reverse directions around the rotation axis, the direction of the output current is not constant. Therefore, it is not applied to electric products that require electric power with a fixed electrode polarity, such as radios, LED lamps, and mobile phones.

Chinese utility model No. ZL200920051299

  The object of the present invention is to provide a clutch in the generator transmission section so that the generator can be rotated only in a certain direction. Thus, the rotary handle in the conventional manual generator and the generator transmission section Therefore, it is an object of the present invention to provide a manual generator that can solve the disadvantage that the generator cannot be rotated only in a certain direction because an effective clutch device or reverse rotation prevention device is not provided.

  In order to solve the above-described problems, a manual generator having a clutch according to the present invention includes a generator, a rotary handle, a gear box upper lid, a gear box lower lid, and a transmission gear group. The transmission gear group includes several stages of transmission gear pairs and a generator gear. A clutch gear is provided between the transmission gear pair and the generator gear. The rotation shaft of the clutch gear is slidably disposed between the upper clutch groove on the upper cover of the gear box and the lower clutch groove on the lower cover of the gear box. The upper clutch groove and the lower clutch groove have the same structure and are arranged to face each other. Both end portions of the upper clutch groove and the lower clutch groove have an arc structure, and the radius of the arc is equal to the radius of the rotating shaft. The position of the center portion of the clutch gear in the state of meshing with the final transmission gear of the transmission gear pair and the generator gear is set as the lower end arc center of the upper clutch groove and the lower clutch groove. The center of the upper end arc of the upper clutch groove and the lower clutch groove is an arc whose center is the center of the generator gear and whose radius is the sum of the tooth tip circle radius of the generator gear and the tooth tip circle radius of the clutch gear. Located outside.

  The sliding path at the center of the clutch gear (that is, the center line of the upper clutch groove and the lower clutch groove) is limited to a quadrilateral. The four sides of the quadrilateral are formed by four curves of a first arc, a second arc, a third arc, and a curved portion. The first arc is a curve with the center of the final transmission gear as a center and a radius from the center of the final transmission gear to the center of the clutch gear in a state where the final transmission gear and the clutch gear are engaged with each other. . The second arc is a curve whose center is the center of the generator gear and whose radius is the distance from the center of the generator gear to the center of the clutch gear when the generator gear and the clutch gear are engaged with each other. . The third arc has a center at the center of the final transmission gear, and the tooth length is set at a distance from the center of the final transmission gear to the center of the clutch gear when the final transmission gear and the clutch gear are engaged with each other. It is a curve whose radius is the added distance. The curved portion is a curve that is separated from the inner side of the gear box upper lid or the gear box lower lid by a predetermined distance. The predetermined distance is equal to the tip circle radius of the clutch gear.

  When the final transmission gear rotates in the forward direction, the clutch gear keeps meshed with the final transmission gear. Accordingly, the clutch gear is operated by the final transmission gear, and the rotation shaft of the clutch gear slides from the upper ends of the upper clutch groove and the lower clutch groove to the lower ends of the upper clutch groove and the lower clutch groove. At this time, the clutch gear, the final transmission gear, and the generator gear are meshed simultaneously. After the rotation from the rotating handle is accelerated by several pairs of transmission gears, the clutch gear rotates the generator gear, and the generator generates electricity. When the rotary handle is rotated in the reverse direction, the clutch gear is operated by the final transmission gear, and the rotation shaft of the clutch gear slides from the lower ends of the upper clutch groove and the lower clutch groove to the upper ends of the upper clutch groove and the lower clutch groove.

  At this time, the clutch gear and the final transmission gear are kept engaged or do not completely disengage. Further, since the clutch gear is completely separated from the generator gear, the generator does not reversely rotate. The distance from the center of the upper end arc of the upper clutch groove and the lower clutch groove to the center of the final transmission gear is shorter than the sum of the tooth tip circle radius of the final transmission gear and the tooth tip circle radius of the clutch gear. It is prevented that the transmission gear is completely separated and the return is not smoothly performed.

  Preferably, the center lines of the upper clutch groove and the lower clutch groove are arc lines that have the center of the final transmission gear as a center and pass through the lower end arc center and the upper end arc center of the upper clutch groove and the lower clutch groove.

  Preferably, a first gear shaft and a second gear shaft are provided between the gear box upper lid and the gear box lower lid. Each gear of the transmission gear pairs of several stages is fitted to the first gear shaft or the second gear shaft, respectively.

  Preferably, a flying wheel is fixed to the shaft end of the generator. The flying wheel is an energy storage member. When the rotary handle is rotated at a high speed, the flying wheel suppresses the rapid increase in the rotational speed and stores the power energy as the moment of inertia. When it falls, it has the effect | action which discharge | releases the stored energy and prevents that a rotational speed falls rapidly. Moreover, the flying wheel has the effect | action which stabilizes the rotational speed of a generator, and stabilizes the voltage output from a generator. When the rotation of the rotary handle is stopped, the flying wheel and the generator gear are continuously rotated, so that the clutch gear is continuously rotated in the same direction. As a result, the clutch gear teeth apply thrust to the teeth of the final transmission gear and receive a reaction force from the teeth of the final transmission gear, so the rotation shaft of the clutch gear slides from the lower end of the upper clutch groove and the lower clutch groove to the upper end. To do. As a result, the clutch gear disengages from the generator gear. At this time, the flying wheel continuously rotates until the rotation speed becomes zero, and therefore the generator can be operated for a certain period of time to generate electric power.

  Preferably, the rotary handle is rotatably connected to the rotary handle base via a lateral pin. An insertion hole is provided at the front end of the rotary handle base. A plug is provided on the end face of the first transmission gear in the transmission gear pair. The rotary handle base is connected to the shaft of the first transmission gear by inserting and connecting a plug to the insertion hole.

Preferably, the insertion hole at the front end of the rotary handle base and the plug of the first transmission gear have a hexagonal or butterfly structure.
Preferably, the output end of the generator is connected to an electrode of a lithium battery.

  Preferably, the manual generator of the present invention is mounted in a small electrical product. The electrical product includes a housing, and the rotary handle base penetrates the shaft hole of the electrical product housing and is connected to the rotary handle. A knob is provided at the rear end of the rotary handle. The electrical product housing is provided with a concave groove used for engaging with a knob a rotary handle rotated around a lateral pin.

1. When the rotating handle rotates in the clockwise direction, the generator generates power normally, and even if the rotating handle rotates in the counterclockwise direction, the generator does not automatically rotate in the reverse direction.
2. The structure is compact and the idea is original.

1 is an exploded perspective view showing a manual generator having a clutch according to an embodiment of the present invention. 1 is a perspective view showing a lower cover of a gear box of a manual generator having a clutch according to an embodiment of the present invention. 1 is a perspective view illustrating a gear box upper cover of a manual generator having a clutch according to an embodiment of the present invention; It is a top view which shows the position area | region of the centerline of an upper clutch groove and a lower clutch groove. 1 is an exploded perspective view illustrating an electrical product to which a manual generator having a clutch according to an embodiment of the present invention is applied.

DESCRIPTION OF EMBODIMENTS Embodiments showing the objects, features, and effects of the present invention will be described in detail with reference to the drawings.
Please refer to FIG. As shown in FIGS. 1 to 3, the present invention provides a manual generator having a clutch. A manual generator having a clutch according to the present invention includes a generator 1, a rotary handle 2 (FIG. 5), a gear box upper lid 3, a gear box lower lid 4, and a transmission gear group. The transmission gear group includes a six-speed transmission gear pair 51 and a generator gear 53. A clutch gear 52 is provided between the transmission gear pair 51 and the generator gear 53. The rotation shaft 521 of the clutch gear 52 is slidably disposed between the upper clutch groove 31 of the gear box upper lid 3 and the lower clutch groove 41 of the gear box lower lid 4. The upper clutch groove 31 and the lower clutch groove 41 have the same structure and are disposed to face each other.

  Both ends of the upper clutch groove 31 and the lower clutch groove 41 have an arc structure, and the radius of the arc is equal to the radius of the rotating shaft 521. The distance from the center of the lower end arc of the upper clutch groove 31 and the lower clutch groove 41 to the center of the final transmission gear 512 of the transmission gear pair 51 is that of the final transmission gear 512 in a state where the final transmission gear 512 and the clutch gear 52 are engaged. It is equal to the distance from the center to the center of the clutch gear 52. Further, the distance from the center of the lower end arc of the upper clutch groove 31 and the lower clutch groove 41 to the center of the generator gear 53 is the distance from the center of the generator gear 53 in a state where the generator gear 53 and the clutch gear 52 are engaged. It is equal to the distance to the center of the gear 52.

  The distance from the center of the upper end arc of the upper clutch groove 31 and the lower clutch groove 41 to the center of the final transmission gear 512 is such that the center of the clutch gear 52 and the final transmission gear 512 in a state where the clutch gear 52 and the final transmission gear 512 are engaged with each other. Is equal to the distance to the center of Further, the distance from the center of the upper end arc to the center of the generator gear 53 is equal to or longer than the sum of the tooth tip circle radius of the generator gear 53 and the tooth tip circle radius of the clutch gear 52.

Then, the clutch gear 52 is generally moved at the upper and lower ends (FIG. 2) of the upper clutch groove 31 and the lower clutch groove 41 by the final transmission gear 512, but precisely, around the four sides of the quadrilateral S in FIG. Move along.
The center line of the upper clutch groove 31 and the lower clutch groove 41 is an arc line that passes through the upper end arc center and the lower end arc center of the upper clutch groove 31 and the lower clutch groove 41, with the center of the final transmission gear 512 as a center. is there.

In order to operate the clutch gear 52 normally, the sliding path at the center of the clutch gear 52 is limited to the quadrilateral S. As shown in the shaded portion of FIG. 4, the four sides of the quadrilateral S are formed by four curves, a first arc S1, a second arc S2, a third arc S3, and a curved portion S4.
The first arc S1 is centered on the center of the final transmission gear 512, and the distance from the center of the final transmission gear 512 to the center of the clutch gear 52 in a state where the final transmission gear 512 and the clutch gear 52 are engaged with each other. The curve is a radius.
The second arc S2 has a center at the center of the generator gear 53 and a distance from the center of the generator gear 53 to the center of the clutch gear 52 in a state where the generator gear 53 and the clutch gear 52 are engaged with each other. The curve is a radius.
The third arc S3 is centered on the center of the final transmission gear 512, and is at a distance from the center of the final transmission gear 512 to the center of the clutch gear 52 in a state where the final transmission gear 512 and the clutch gear 52 are engaged with each other. , A curve with the radius of the distance plus the tooth length.
Curved portion S4: a curve that is separated from the inner side line 33 of the gear box upper lid 3 or the gear box lower lid 4 by a predetermined distance. The predetermined distance is equal to the tip circle radius of the clutch gear 52.

  In order to enable the clutch gear 52 to be effectively disengaged from the generator gear 53, the upper end arc central portions of the upper clutch groove 31 and the lower clutch groove 41 are located outside the limit arc 531. The limit arc 531 is an arc whose center is the center of the generator gear 53 and whose radius is the sum of the tooth tip circle radius of the generator gear 53 and the tooth tip circle radius of the clutch gear 52.

  A first gear shaft 32 and a second gear shaft 42 are provided between the gear box upper lid 3 and the gear box lower lid 4. Each gear of the six-stage transmission gear pair 51 is fitted to the first gear shaft 32 or the second gear shaft 42, respectively. The axis line of the second gear shaft 42 is the center line of the final transmission gear 512.

  The clutch gear 52 has a function as an idle wheel that adjusts the rotation direction of the rotary handle (grip handle) 2 and the rotation direction of the generator 1.

  A flying wheel 11 is fixed to the shaft end of the generator 1. The rotary handle 2 is rotatably connected to the rotary handle base 22 via a lateral pin 21. An insertion hole 221 is provided at the front end of the rotary handle base 22. A plug is provided on the end face of the first transmission gear 511 (see FIG. 1) in the transmission gear pair 51. The rotary handle base 22 is connected to the shaft of the first transmission gear 511 by inserting and connecting a plug to the insertion hole 221. The first transmission gear 511 is fitted on the first gear shaft 32.

  The insertion hole 221 at the front end of the rotary handle base 22 and the plug of the first transmission gear 511 have a hexagonal or butterfly structure. The output end of the generator 1 is connected to the electrode of the lithium battery 6.

  The manual generator of the present invention is mounted in a small electrical product. The rotary handle base 22 penetrates the shaft hole of the casing 7 of the electrical product and is connected to the rotary handle 2. A knob 23 is provided at the rear end of the rotary handle 2. The electrical product housing 7 is provided with a concave groove 71 used for engaging the rotary handle (gripping handle) 2 rotated around the lateral pin 21 together with the knob 23.

  Referring mainly to FIGS. 1, 2, and 4, when the final transmission gear 512 rotates in the clockwise direction in FIG. 4, the clutch gear 52 operates in response to the rotation of the final transmission gear 512. The rotation shaft 521 of the clutch gear 52 is rotated at the lower end of the upper clutch groove 31 and the lower clutch groove 41 by the rotation of the final transmission gear 512 (as shown in FIG. 2, the rotation shaft 521 is in front of both the clutch grooves 31 and 41, as shown in FIG. Slide down (down). That is, the rotary shaft 521 moves along the arc S1 from the arc S2 to the connection point of the arc S3. At the same time, the clutch gear 52 includes the final transmission gear 512 and the generator gear 53 indicated by solid circles in FIG. Mesh with each other. At this time, when the rotary handle 2 is rotated, the rotational speed is accelerated by the six-stage transmission gear pair 51, the clutch gear 52 rotates the generator gear 53, and the generator 1 generates power.

When the rotary handle 2 is rotated counterclockwise in FIG. 4, the clutch gear 52 is operated by the final transmission gear 512, and the rotation shaft 521 of the clutch gear 52 is rotated by the rotation of the final transmission gear 512. The upper clutch groove 31 and the lower clutch groove 41 are disengaged from the lower end of the lower clutch groove 41 and slid to the upper ends of the upper clutch groove 31 and the lower clutch groove 41 (in FIG. To do. That is, the rotary shaft 521 moves from the connection point of the arc 3 of the arc S2 to the connection point of the arcs S4 and S1 along the arc S3, and the clutch gear 52 moves to the position of the upward dotted circle in FIG. Therefore, the clutch gear 52 and the generator gear 53 are not engaged with each other, and the generator 1 does not rotate reversely.
In this embodiment, the clockwise direction is forward rotation and the counterclockwise direction is reverse rotation. However, when the electrode polarity is fixed, such as radio, LED lamp, mobile phone, etc., the rotation of the generator matches the polarity. Depending on the generator, the clockwise direction may be set to reverse rotation and the counterclockwise direction may be set to normal rotation.

  Please refer to FIG. As shown in FIG. 5, the electric product using the manual generator having the clutch of the present invention includes a flashlight. The LED lamp 81 of the flashlight is fixed to the front end of the electrical product. A cover 82 for condensing and protecting is attached to the front end of the LED lamp 81. The LED lamp 81 is supplied with electric power from the lithium battery 6 charged by the generator 1 and emits light. The appliance is further provided with a radio. A radio speaker 9 is fixed on the housing 7. Radio and flashlight share one power source. The flashlight and radio are controlled by respective switches 91 or adjusting devices.

  The structure of the present invention is compact and the generator clutch design is unique and clever. The present invention can provide convenience by being used for small household appliances. Minor changes or modifications to the present invention by those skilled in the art are included in the claims of the utility model registration of the present invention. That is, changes or modifications within the scope not departing from the gist of the present invention are included in the utility model registration request of the present invention. For example, in this embodiment, the clockwise direction is forward rotation and the counterclockwise direction is reverse rotation, but when the electrode polarity is fixed, it can be rotated so that the polarity of the generator matches, depending on the generator Of course, the clockwise direction may be set as the reverse rotation and the counterclockwise direction as the normal rotation.

DESCRIPTION OF SYMBOLS 1 Generator 11 Flying wheel 2 Rotating handle 21 Lateral pin 22 Rotating handle base 221 Insertion hole 23 Knob 3 Gear box upper cover 31 Upper clutch groove 32 First gear shaft 33 Inner side rail line 4 Gear box lower cover 41 Lower clutch groove 42 First Two gear shafts 51 Transmission gear pair 511 First transmission gear 512 Final transmission gear 52 Clutch gear 521 Rotating shaft 53 Generator gear 531 Limit arc 6 Lithium battery 7 Housing 71 Concave groove 81 LED lamp 82 Cover 9 Speaker 91 Switch S Four sides Shape S1 First arc S2 Second arc S3 Third arc S4 Curve

Claims (8)

A manual generator having a clutch comprising a generator, a rotating handle, a gear box upper lid, a gear box lower lid and a transmission gear group,
The transmission gear group includes several stages of transmission gear pairs and a generator gear, and a clutch gear is provided between the transmission gear pair and the generator gear. The upper clutch groove and the lower clutch groove are slidably disposed between the upper clutch groove of the gear box upper lid and the lower clutch groove of the gear box lower lid. Both ends of the clutch groove and the lower clutch groove have an arc structure, and the radius of the arc is equal to the radius of the rotating shaft, and at the same time meshes with the final transmission gear of the transmission gear pair, and the generator gear. The position of the center portion of the clutch gear in a state of meshing with the upper clutch groove and the lower clutch groove is the center of the lower end arc of the upper clutch groove and the lower clutch groove. Wherein the center of the generator gear and circle center, located outside the arc of the sum and the radius of the addendum circle radius of the addendum circle radius of the clutch gear of the generator gear,
A slide path at the center of the clutch gear (that is, a center line of the upper clutch groove and the lower clutch groove) is limited to a quadrilateral, and the four sides of the quadrilateral are a first arc, a second arc, The first arc is formed by four curves of a third arc and a curved portion, and the first arc has a center at the center of the final transmission gear, and the final transmission gear is engaged with the final transmission gear and the clutch gear. The radius is a curve from the center of the transmission gear to the center of the clutch gear, and the second arc has a center at the center of the generator gear, and the generator gear and the clutch gear are A curve having a radius from a center of the generator gear to a center of the clutch gear in a meshed state, and the third arc is a center of the final transmission gear, and the final transmission A curve having a radius of a distance obtained by adding a tooth length to the distance from the center of the final transmission gear to the center of the clutch gear in a state where the clutch gear is meshed with the curve portion, A clutch having a predetermined distance from a line along the inner side of the upper cover of the gear box or the lower cover of the gear box, wherein the predetermined distance is equal to a tip circle radius of the clutch gear. Having manual generator.   Center lines of the upper clutch groove and the lower clutch groove are circles that are centered on the center of the final transmission gear and pass through the upper end arc center and the lower end arc center of the upper clutch groove and the lower clutch groove. The manual generator having a clutch according to claim 1, wherein the manual generator is an arc wire.   A first gear shaft and a second gear shaft are provided between the gear box upper lid and the gear box lower lid, and the gears of the several stages of the transmission gear pairs are the first gear shaft or The manual generator having a clutch according to claim 1, wherein the manual generator is fitted to each of the second gear shafts.   The manual generator having a clutch according to claim 1, wherein a flying wheel is fixed to a shaft end of the generator.   The rotary handle is rotatably connected to the rotary handle base via a lateral pin, an insertion hole is provided at a front end of the rotary handle base, and an end face of the first transmission gear in the transmission gear pair is The clutch according to claim 1, wherein a plug is provided, and the rotary handle base is connected to the shaft of the first transmission gear by inserting and connecting the plug to the insertion hole. With manual generator.   6. The manual generator with a clutch according to claim 5, wherein the insertion hole at the front end of the rotary handle base and the plug of the first transmission gear have a hexagonal or butterfly structure.   3. The manual generator having a clutch according to claim 1, wherein an output end of the generator is connected to an electrode of a lithium battery.   The manual generator is mounted in a small electrical product, and the electrical product includes a casing, and the rotary handle base passes through a shaft hole of the casing, is connected to the rotary handle, and rotates. A knob is provided at a rear end of the handle, and a concave groove used for engaging the rotary handle rotated around the lateral pin with the knob is provided in the housing. A manual generator having the clutch according to claim 5.

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