CN2425372Y - Film-winding device for slide projector - Google Patents
Film-winding device for slide projector Download PDFInfo
- Publication number
- CN2425372Y CN2425372Y CN 00224602 CN00224602U CN2425372Y CN 2425372 Y CN2425372 Y CN 2425372Y CN 00224602 CN00224602 CN 00224602 CN 00224602 U CN00224602 U CN 00224602U CN 2425372 Y CN2425372 Y CN 2425372Y
- Authority
- CN
- China
- Prior art keywords
- outer cover
- shading plate
- light
- film rolling
- light shading
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 238000004804 winding Methods 0.000 title 1
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 239000012141 concentrate Substances 0.000 abstract description 3
- 239000011521 glass Substances 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract 6
- 238000000149 argon plasma sintering Methods 0.000 description 2
Landscapes
- Projection Apparatus (AREA)
- Photographic Processing Devices Using Wet Methods (AREA)
Abstract
The utility model discloses a teaching film rolling device which is used on a slide projector and comprises an outer cover and a transmission window. A main film rolling shaft and an auxiliary film rolling shaft are arranged on the outer cover and below the transmission window, and a light shading plate is sheathed in a sliding groove of the outer cover through a sliding rod. A light shading plate guide strip is arranged on an inner side wall of the outer cover below the light shading plate, and light shading plate telescopic grooves are arranged on the outer cover side wall and at the corresponding point of the light shading plate. When used, the utility model is placed on a slide projector glass plate, and a film roll is positioned on the auxiliary film rolling shaft. A film head is rolled on the main film rolling shaft, and because the outer cover shades scattered light, the light concentrates on teaching content to make students concentrate on attention. The range of the transmitted light can be adjusted by moving the light shading plate, and the content which is temporarily unused for teaching can be covered. At the time of need, the content comes out row by row, the main and the auxiliary film rolling shafts can make the sheet content continuously replaced, and the utility model has the advantage of convenient use.
Description
The utility model relates to the disc changing mechanism on a kind of slide projector.
At present in the slide projector that school instruction is used is being imparted knowledge to students use, a lot of light scatterings is arranged outside screen, because of light does not concentrate on the content of courses, even light scatter arrives on one's body the teacher, cause that easily attention of student disperses, and is not easy to remember that the teacher will teach key content.
The purpose of this utility model provides a kind of teaching slide projector shading film roller.
The technical solution of the utility model is: a kind of slide projector film roller, comprise on outer cover, the outer cover transmission window is arranged, on outer cover, there is the master file bobbin below of transmission window and from tack-up spool, a chute is arranged on outer cover, and jack rod sleeve is in chute, one end is fixed on the interior shadow shield of outer cover, on the madial wall of outer cover, the downside of shadow shield has the shadow shield sliver, with the shadow shield corresponding section shadow shield telescopic chute is arranged on the sidewall of outer cover.
The utility model be with the teaching usefulness film roll the slide projector film roller from tack-up spool, head twist on the master file bobbin, in use the slide projector film roller is placed on the glass plate of slide projector, because the outer cover of slide projector film roller is the glass plate cover position of slide projector, the light of slide projector can only penetrate from the transmission window of slide projector film roller, do not make unnecessary light scattering easily cause the place that disperses attention of student at other, has optically focused, light is concentrated on teach on the content, the effect that increases content of courses sharpness is arranged, shadow shield moves in the slide projector film roller, the scope of scalable transmitted ray, the content that wouldn't use teaching hides, and can put forward line by line when needing, rotate the master file bobbin or film content is constantly changed, use easily from tack-up spool.
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the vertical view of utility model;
Fig. 2 is an A-A cross section view of the present utility model;
As shown in Figure 1 and Figure 2, the utility model comprises outer cover 1, and transmission window 8 is arranged on the outer cover 1, on outer cover 1, there is master file bobbin 9 below of transmission window 8, from tack-up spool 7, a chute 6 is arranged on outer cover 1, slide bar 5 is enclosed within the chute 6, one end is fixed on the shadow shield 4 in the outer cover 1, on the madial wall of outer cover 1, the downside of shadow shield 4 has shadow shield sliver 3, has shadow shield telescopic chute 2 with shadow shield 4 corresponding sections on the sidewall of outer cover 1.
Claims (1)
1, a kind of slide projector film roller, comprise outer cover (1), transmission window (8) is arranged on the outer cover (1), it is characterized in that: on outer cover (1), there is master file bobbin (9) below of transmission window (8) and from tack-up spool (7), one chute (6) is arranged on outer cover (1), slide bar (5) is enclosed within the chute (6), one end is fixed on the interior shadow shield (4) of outer cover (1), on the madial wall of outer cover (1), the downside of shadow shield (4) has shadow shield sliver (3), has shadow shield telescopic chute (2) with shadow shield (4) corresponding section on the sidewall of outer cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00224602 CN2425372Y (en) | 2000-04-14 | 2000-04-14 | Film-winding device for slide projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00224602 CN2425372Y (en) | 2000-04-14 | 2000-04-14 | Film-winding device for slide projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2425372Y true CN2425372Y (en) | 2001-03-28 |
Family
ID=33588925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00224602 Expired - Fee Related CN2425372Y (en) | 2000-04-14 | 2000-04-14 | Film-winding device for slide projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2425372Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100472124C (en) * | 2007-11-29 | 2009-03-25 | 北京星光影视设备科技股份有限公司 | stage slide rewinder |
| WO2016112627A1 (en) * | 2015-01-12 | 2016-07-21 | 芋头科技（杭州）有限公司 | Display device |
-
2000
- 2000-04-14 CN CN 00224602 patent/CN2425372Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100472124C (en) * | 2007-11-29 | 2009-03-25 | 北京星光影视设备科技股份有限公司 | stage slide rewinder |
| WO2016112627A1 (en) * | 2015-01-12 | 2016-07-21 | 芋头科技（杭州）有限公司 | Display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |