Rotation projector

1. Field of the Invention

The present invention relates to a rotation projector, and more particularly to a rotation projector that can project a rotating pattern by a rotary gear that drives a film in the rotation projector to rotate.

2. Description of Related Art

A conventional projector can project clear patterns. The conventional projector has a housing, a lighting member, a film, and an imaging lens. The housing has a projection opening formed through a front end of the housing. The lighting member is mounted in the housing and has a side surface facing the projection opening. The film is mounted in the housing and is disposed in front of the lighting member. The imaging lens is mounted in the projection opening and is disposed in front of the film. When the conventional projector is in use, light is emitted from the lighting member and passes through the film and the imaging lens, so as to form a clear pattern on a surface.

However, the pattern projected by the conventional projector is static. The conventional projector lacks a mechanism that drives the film to rotate. The static pattern causes visual fatigue on a viewer and is unable to bring about a joyful atmosphere in a party when needed. The convention projector that projects said static patterns cannot be used in a cheerful occasion or party.

To overcome the shortcomings, the present invention tends to provide a rotation projector to obviate the aforementioned problems.

The main objective of the invention is to provide a rotation projector that solves the problem that the static pattern projected by the conventional projector cannot be used in a cheerful occasion or party.

The rotation projector has a housing and a projection device. The housing has a casing, a mounting support, a power supply member, and a waterproof cover. The mounting support is disposed in the casing. The power supply member is disposed in the casing. The waterproof cover is mounted on the casing.

The projection device is disposed in the casing and has a driver, a driving shaft, a drive gear, a lighting member, a gear assembly, a gear cover, and a film reel assembly. The driver is mounted on the mounting support and electrically connected to the power supply member. The driving shaft protrudes from and is driven to rotate by the driver. The drive gear is mounted on the driving shaft. The lighting member is mounted on the mounting support and electrically connected to the power supply member. The gear assembly is rotatably mounted on the mounting support and engages with the drive gear. The gear cover is mounted on the mounting support and holds the gear assembly. The film reel assembly is mounted on the gear assembly and is disposed in front of the lighting member.

The rotation projector further has a supporting device. The supporting device is mounted on a bottom of the casing and has a rack and a grounding stick. The rack is rotatably mounted on the bottom of the casing. The grounding stick is rotatably mounted on a lower end of the rack.

The driver drives the drive gear and the gear assembly to rotate. The film reel assembly is rotated at the same time. The lighting member is powered to project light to go through the film reel assembly to project rotating patterns. The rotating patterns are dynamic and are suitable for cheerful occasions or parties. Accordingly, the rotation projector is practical.

Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

FIG. 1 is a perspective view of a first embodiment of a rotation projector in accordance with the present invention;

FIG. 2 is an enlarged partially exploded perspective view of the rotation projector in FIG. 1 ;

FIG. 3 is an exploded perspective view of a projection device of the rotation projector in FIG. 1 ;

FIG. 4 is an enlarged side view in partial section of the rotation projector in FIG. 1 ;

FIG. 5 is a perspective view of a second embodiment of a rotation projector in accordance with the present invention;

FIG. 6 is a partially exploded perspective view of a projection device of the rotation projector in FIG. 5 ;

FIG. 7 is another partially exploded perspective view of the projection device of the rotation projector in FIG. 5 ;

FIG. 8 is a perspective view of a third embodiment of a rotation projector in accordance with the present invention;

FIG. 9 is a partially exploded perspective view of a projection device of the rotation projector in FIG. 8 ; and

FIG. 10 is another partially exploded perspective view of the projection device of the rotation projector in FIG. 8 .

With reference to FIGS. 1, 2, 5, and 8 , a rotation projector in accordance with the present invention comprises a housing 10 A, 10 B, 10 C and a projection device 20 A, 20 B, 20 C.

With reference to FIGS. 1, 2, 5, and 8 , the housing 10 A, 10 B, 10 C has a casing 11 A, 11 B, 11 C, a mounting support 12 A, 12 B, 12 C, a power supply member 13 A, 13 B, 13 C, and a waterproof cover 14 A, 14 B, 14 C. The casing 11 A, 11 B, 11 C has a front surface. The mounting support 12 A, 12 B, 12 C is disposed in the casing 11 A, 11 B, 11 C. The power supply member 13 A, 13 B, 13 C is disposed in the casing 11 A, 11 B, 11 C. The waterproof cover 14 A, 14 B, 14 C is mounted on the casing 11 A, 11 B, 11 C.

With reference to FIGS. 2, 5, and 8 , the projection device 20 A, 20 B, 20 C is mounted in the casing 11 A, 11 B, 11 C. With further reference to FIGS. 3, 6, and 9 , the projection device 20 A, 20 B, 20 C has a driver 21 A, 21 B, 21 C, a driving shaft 22 A, 22 B, 22 C, a drive gear 23 A, 23 B, 23 C, a lighting member 24 A, 24 B, 24 C, a gear assembly 25 A, 25 B, 25 C, a gear cover 26 A, 26 B, 26 C, and a film reel assembly 27 A, 27 B, 27 C. The driver 21 A, 21 B, 21 C is mounted on the mounting support 12 A, 12 B, 12 C and is electrically connected to the power supply member 13 A, 13 B, 13 C. The driving shaft 22 A, 22 B, 22 C protrudes from and is driven to rotate by the driver 21 A, 21 B, 21 C. The drive gear 23 A, 23 B, 23 C is securely mounted on the driving shaft 22 A, 22 B, 22 C. The lighting member 24 A, 24 B, 24 C is mounted on the mounting support 12 A, 12 B, 12 C and is electrically connected to the power supply member 13 A, 13 B, 13 C. The gear assembly 25 A, 25 B, 25 C is rotatably mounted on the mounting support 12 A, 12 B, 12 C and engages with the drive gear 23 A, 23 B, 23 C. The gear cover 26 A, 26 B, 26 C is mounted on the mounting support 12 A, 12 B, 12 C and holds the gear assembly 25 A, 25 B, 25 C. The film reel assembly 27 A, 27 B, 27 C is mounted on the gear assembly 25 A, 25 B, 25 C and is disposed in front of the lighting member 24 A, 24 B, 24 C.

With reference to FIGS. 1, 3, and 4 , in a first preferred embodiment of the rotation projector, the lighting member 24 A has a lighting element 241 A, a spotlight lens 242 A and an imaging lens 243 A. The lighting element 241 A is mounted on the mounting support 12 A. The spotlight lens 242 A is mounted on the mounting support 12 A and is disposed in front of the lighting element 241 A. The imaging lens 243 A is mounted on the front surface of the casing 11 A and is disposed in front of the lighting element 241 A, the gear assembly 25 A, and the waterproof cover 14 A. The gear assembly 25 A has a rotary gear 251 A mounted on the mounting support 12 A and engaging with the drive gear 23 A. The film reel assembly 27 A has a film 271 A mounted on the rotary gear 251 A and disposed in front of the lighting element 241 A.

With reference to FIGS. 5 to 7 , in a second preferred embodiment of the rotation projector, the lighting member 24 B has three lighting elements 241 B, three spotlight lenses 242 B and three imaging lenses 243 B. The lighting elements 241 B are separately mounted on the mounting support 12 B. The spotlight lenses 242 B are separately mounted on the mounting support 12 B and are respectively disposed in front of the lighting elements 241 B. The imaging lenses 243 B are separately mounted on the gear cover 26 B and are respectively disposed in front of the lighting elements 241 B. Each imaging lens 243 B has a front surface facing the waterproof cover 14 B. The gear assembly 25 B has a link gear 252 B and three rotary gears 251 B. The link gear 252 B is mounted on the mounting support 12 B and engages with the drive gear 23 B. The rotary gears 251 B are separately mounted on the mounting support 12 B, are arranged around the link gear 252 B, and engage with the link gear 252 B. The film reel assembly 27 B has three films 271 B respectively mounted on the rotary gears 251 B and respectively disposed in front of the lighting elements 241 B. Each film 271 B has a front surface facing the waterproof cover 14 B.

With reference to FIGS. 8 to 10 , in the third preferred embodiment of the rotation projector, the lighting member 24 C has a background light assembly 244 C, three lighting elements 241 C, four spotlight lenses 242 C, and four imaging lenses 243 C. The background light assembly 244 C is mounted on the mounting support 12 C and has an image. The lighting elements 241 C are mounted on the mounting support 12 C and are arranged around the background light assembly 244 C. The spotlight lenses 242 C are mounted on the mounting support 12 C and are respectively disposed in front of the lighting elements 241 C and the background light assembly 244 C. The imaging lenses 243 C are mounted on the gear cover 26 C and are respectively disposed in front of the lighting elements 241 C and the background light assembly 244 C. Each imaging lens 243 C has a front surface facing the waterproof cover 14 C. The gear assembly 25 C has a transmission gear 252 C and three rotary gears 251 C. The transmission gear 252 C is mounted on the mounting support 12 C and engages with the drive gear 23 C. The rotary gears 251 C are separately mounted on the mounting support 12 C, are arranged around the transmission gear 252 C, and engage with the transmission gear 252 C. The film reel assembly 27 C has three films 271 C respectively mounted on the rotary gears 251 C and respectively disposed in front of the lighting elements 241 C. Each film 271 C has a front surface facing the waterproof cover 14 C.

With reference to FIGS. 1, 5, and 8 , the supporting device 30 is mounted on a bottom of the casing 11 A, 11 B, 11 C and has a rack 31 and a grounding stick 32 . The rack 31 is rotatably mounted on the bottom of the casing 11 A, 11 B, 11 C. The grounding stick 32 is rotatably mounted on a lower end of the rack 31 .

When the first preferred embodiment of the rotation projector is in use, with reference to FIGS. 2 to 4 , an electric wire transmits electricity to the power supply member 13 A located in the casing 11 A. The power supply member 13 A can transfer alternating current (AC) to direct current (DC) and supplies DC to the driver 21 A and the lighting member 24 A of the projection device 20 A. As the driver 21 A is powered, the driver 21 A drives the driving shaft 22 A as well as the drive gear 23 A to rotate. The rotary gear 251 A of the gear assembly 25 A is driven to rotate by the drive gear 23 A at the same time. The film 271 A mounted on the rotary gear 251 A is rotated as well. When the lighting member 24 A is powered, light is emitted from the lighting element 241 A. The light passes through the film 271 A mounted on the rotary gear 251 A. Since the rotary gear 251 A and the film 271 A are rotated at the same time, an image on the film 271 A is projected to form a rotating pattern. The rotating pattern is dynamic and interesting and is suitable for cheerful occasions or parties.

When the second preferred embodiment of the rotation projector is in use, with reference to FIGS. 5 to 7 , the driver 21 B is powered and drives the driving shaft 22 B as well as the drive gear 23 B. The link gear 252 B and the rotary gear 251 B of the gear assembly 25 B are driven to rotate by the drive gear 23 B at the same time. The films 271 B mounted on the rotary gears 251 B are rotated as well. When the lighting elements 241 B of the lighting member 24 B are powered, light is emitted from the lighting elements 241 B and passes through the films 271 B that are rotating. Thus, images on the three films 271 B are projected to form three rotating patterns.

When the third preferred embodiment of the rotation projector is in use, with reference to FIGS. 8 to 10 , the driver 21 C is powered and drives the driving shaft 22 C and the drive gear 23 C to rotate. The transmission gear 252 C and the rotary gears 251 C of the gear assembly 25 C are driven to rotate by the drive gear 23 C simultaneously. The films 271 C mounted on the rotary gears 251 C are rotated as well. When the lighting member 24 C is powered, light is emitted from the lighting elements 241 C and the background light assembly 244 C. The light passes through the films 271 C mounted on the rotary gears 251 C and passes through the transmission gear 252 C. Thus, images on the three films 271 C and the image of the background light assembly 244 C are projected to form three rotating patterns and one background pattern. The rotation projector allows viewers to see three dynamic rotating patterns and one static pattern.

With reference to FIGS. 1, 5, and 8 , a bottom end of the grounding stick 32 is pointed and can be inserted into the ground directly. With reference to FIGS. 2, 5 , and 8 , with the waterproof cover 14 A, 14 B, 14 C on the casing 11 A, 11 B, 11 C, the rotation projector can be used outdoors. Moreover, with reference to FIGS. 3, 6, and 9 , the colors of the lights emitted from the lighting member 24 A, 24 B, 24 C can be changed to vary colors of the pattern projected.

Accordingly, the rotation projector projects the rotating patterns by the driver 21 A, 21 B, 21 C driving the drive gear 23 A, 23 B, 23 C and the gear assembly 25 A, 25 B, 25 C to rotate. The film reel assembly 27 A, 27 B, 27 C is rotated at the same time. The lighting member 24 A, 24 B, 24 C is powered to project the light to go through the film reel assembly 27 A, 27 B, 27 C to project the rotating patterns. The rotating patterns are dynamic and are suitable for cheerful occasions or parties. Accordingly, the rotation projector is practical.