CN2798144Y

CN2798144Y - Folding exhibiting screen

Info

Publication number: CN2798144Y
Application number: CN 200420118940
Authority: CN
Inventors: 法兰克·雷普德
Original assignee: Ddc Design & Development GmbH
Current assignee: Ddc Design & Development GmbH
Priority date: 2004-12-18
Filing date: 2004-12-18
Publication date: 2006-07-19
Anticipated expiration: 2014-12-18

Abstract

The utility model relates to a display screen, particularly an unfolding and folding type display screen. The utility model comprises a left and a right upright rods, rolling shafts and curtains wrapped on the rolling shafts, wherein the rolling shafts are arranged in the left and the right upright rods, and the upright rods are unfolded or folded to extend or fold the curtains. In addition, the middle parts of the two upright rods are provided with supporting posts, and the left and the right upright rods and the supporting posts are connected through a connecting rod mechanism. The connecting rod mechanism comprises at least two gear rods, wherein the gear rods form a supporting plane surface. Each supporting post is provided with at least one holding device, and the curtains are held by the holding devices. Because the middle part positions of the curtains are buckled by the holding devices, the condition that the curtains are not fallen in the middle parts is ensured. In addition, the arrangement of the connecting rod mechanism provides one supporting plane surface so as to cause the curtains not to be inwards concave or outwards convex, and the integrity of graphs on the curtains is kept.

Description

Open-close type is showed screen

[technical field]

The utility model relates to a kind of displaying screen, and especially a kind of open-close type is showed screen.

[technical background]

Show that screen is widely used in the industries such as advertisement, propaganda, literature and art, for very big effect is played in the propagation of information.When on showing screen, printing or being pasted with information such as picture, literal, can be used for the propaganda of product or other things of enterprise; When showing that screen cooperates projector equipment to use, then be widely used in video display, movie etc.

Traditional displaying screen is roughly two classes, and a class is fixed displaying screen, and another kind of the displaying for tumbling-type shields.

Fixed displaying screen generally comprises the cloth curtain or the paper of showing content that be printed on of a support and certain size, with cloth curtain or paper be fixed on support about (about) two buckleing of level (vertically) hold on the bar, just can place in position and show.This fixed displaying screen is simple for production, but lacks flexibility ratio, can not adapt to the variation of showing content length size, when showing that screen is big, also inconvenient it is accommodated placement, more inconveniently carries out video display.

Now widely used on the market tumbling-type shows that screen has improved above-mentioned characteristics basically, it is made up of the roller bearing of curtain two support bars and a rolling, roller bearing can be installed in arbitrary support bar, another support bar then the clamping curtain pull out end, when using this displaying screen, two support bars are outwards pulled out promptly deployable curtain.

Prior art is that deficiency is very tangible, at first, launches curtain when using, must with about two support bars be plugged on the plane or accordingly on the accepting groove, not only require great effort but also bother; Secondly, curtain makes wherein subordinate's bob or depression easily owing to the effect of self gravitation and the influence of other factors, thereby makes formed scalloping distortion on the curtain, influences visual effect.

[utility model content]

The purpose of this utility model will overcome above-mentioned deficiency exactly, provides a kind of operation simple and easy, and can avoid because of curtain gravity or other factors effect cause tenesmus of curtain middle part or depression, and then causes the open-close type of formed scalloping distortion on the curtain to show screen.

The purpose of this utility model is achieved by the following technical solution: this open-close type shows that screen comprises left and right sides vertical rod, roller bearing, and the curtain of rolling on roller bearing, roller bearing is installed in the vertical rod of the left and right sides, launching or fold vertical rod can stretch or draw curtain in, in addition, two vertical rods middle part is provided with supporting pillar, be connected by linkage assembly between left and right sides vertical rod and the supporting pillar, this linkage assembly comprises at least two racks, form supporting plane by rack, this supporting pillar is provided with at least one grip device, and this grip device grips curtain.

Compared with prior art, advantage of the present utility model is: because grip device the position is buckled curtain to hold in the middle, be unlikely tenesmus so guaranteed curtain at the middle part; In addition, the setting of linkage assembly provides a supporting plane to make curtain be unlikely indent or evagination, can keep the integrality of curtain epigraph preferably.

[description of drawings]

Fig. 1 is a front view of the present utility model, and wherein curtain is folded, and two vertical rods are in closed condition;

Fig. 2 is a rear view of the present utility model, and wherein curtain is folded, and two vertical rods are in closed condition;

Fig. 3 is a rear view of the present utility model, wherein stretches screen and is in deployed condition in order to use;

Fig. 4 is a front view of the present utility model, wherein stretches screen and is in deployed condition in order to use;

Fig. 5 is the synoptic diagram of the operating lever of the utility model drive unit;

Fig. 6 is the synoptic diagram of the utility model linkage assembly, support bar and drive unit junction;

Fig. 7 is the spring of the utility model drive unit and the synoptic diagram of supporting pillar junction;

Fig. 8 is the utility model supporting pillar schematical top view;

Fig. 9 to Figure 11 is the rear view of the utility model second embodiment, and wherein curtain is pressed the different proportion expansion, and Fig. 9 is 1: 1, and Figure 10 is 4: 3, and Figure 11 is 16: 9.

[embodiment]

Below in conjunction with drawings and Examples the utility model is further described:

See also Fig. 1, Fig. 2 and Fig. 4, the utility model open-close type comprises left and right sides

vertical rod

4,6, roller bearing (not shown), and during non-working condition by the curtain 18 of rolling on roller bearing (not shown), this roller bearing (not shown) is installed in left and right sides vertical rod 4, in 6, launch or fold left and right sides

vertical rod

4,6 to stretch or to draw in curtain 18, in addition, two

vertical rods

4,6 middle parts are provided with supporting pillar 12, are connected by linkage assembly 20 between left and right sides

vertical rod

4,6 and the supporting pillar 12, this supporting pillar 12 is provided with two grip devices 58,59 that curtain 18 is gripped up and down.

As shown in Figure 1, in each

vertical rod

4,6, be equipped with roller bearing (not shown).Left side vertical rod 4 is in the adjacent position with right vertical rod 6, and curtain this moment (Fig. 1 does not show) is in pent state.Left side vertical rod 4 is installed on the tripod 8 as fixture with right vertical rod 6, and the outer wall of tripod 8 then is connected with the outer wall of right vertical rod 6 with left vertical rod 4.Tripod 8 is positioned on the base 10, the utility model open-close type can be showed screen is installed on the various planes by this tripod 8 and base 10.

Among Fig. 2, supporting pole 12 is set between left vertical rod 4 and the right vertical rod 6, and this supporting pillar 12 extends along the direction that parallels with left and right sides

vertical rod

4,6, and links to each other with the lower end of tripod 8.

Again as shown in Figure 2, an extracting handle 14 in order to operation drive unit 16 is arranged, particularly in Fig. 5, describe in detail after will holding.

Outwards drawing back left and right sides

vertical rod

4,6 can make curtain be stretched to as shown in Figure 3 the deployed condition in order to use from closed condition shown in Figure 2.

Left and right sides

vertical rod

4,6 and the linkage assembly 20 that moves through that is installed in the roller bearing (not shown) in the left and right sides

vertical rod

4,6 are connected to supporting pillar 12 independently of one another.This linkage assembly 20 is a clip device as shown in Figure 3.

This linkage assembly 20 is operated by a drive unit 16, now arrives Fig. 8 in conjunction with Fig. 5, specifically describes as follows:

As shown in Figure 5, extracting handle 14 shown in Figure 2 is installed with in a lever 22, and this lever 22 drives bearing 24 by one and is fixed in supporting pillar 12.This lever 22 is provided with a step bearing 26 between drive bearing 24 and extracting handle 14, this step bearing is as the device of transferring rod assembly 28, and is like this, by forming an operating lever between extracting handle 14, rod assembly 28, drive bearing 24, the step bearing 26.This rod assembly 28 is provided with the spool 32 that an elongated hole 30, is connected to a bearing saddle 34 at its end away from step bearing 26 can enter into this elongated hole 30.This bearing saddle 34 can vertically be advanced in the bearing portion 36 of supporting pillar 12.

Bearing saddle 34 is and the undergear bar 38a and the 38b acting in conjunction of linkage assembly 20, holds the back and describe in detail in Fig. 6.

Can see the top of bearing saddle 34 this moment, is fixed with a head 40 on this top by assisting of standing screw 42.Its as shown in Figure 6, the upper end of this head 40 is provided with bearing door bolt 44, the undergear bar 38a of linkage assembly 20 and 38b then are arranged at this bearing and fasten with a bolt or latch on 44, they can pivot in this way.And bearing door bolt 44 is connected with a spring 46, and the part of this spring 46 as shown in Figure 6.

As shown in Figure 7, the terminal system of another of spring 46 is fixed to bearing door bolt 48.Be provided with an attending device 52 for avoiding spring 46 to fasten unexpected the becoming flexible in 48 places with a bolt or latch in this end from bearing.48 of bearing door bolts are fixed to door bolt fixator 50.

Again as shown in Figure 8, the upper end of supporting pillar 12 is provided with one and counterpart 56 coefficient adjustment bolts 54.Adjust the down auxiliary of bolt 54 at this, can in height be adjusted with respect to curtain 18 as the grip device 58 shown in Fig. 4 decomposes, this grip device 58 is the apical margin of curtain 18 fixedly.For curtain 18 further is fixed on the supporting pillar 12, be provided with another grip device 59 in the central authorities of the root edge of curtain.

Again as shown in Figure 3, linkage assembly 20 also is provided with a skewing mechanism except that aforesaid rack 38a and 38b, and this skewing mechanism comprises two cross-braces 62a and 62b, and the end of each cross-braces 62a, 62b all is fixed on the supporting pillar 12 by a bearing 60.This cross-braces 62a and 62b then are connected respectively to the rack 64a and the 64b on linkage assembly 20 tops away from another end of bearing 60.Rack 64a then is connected with 38b with the rack 38a of bottom respectively by gear point with 64b.Rack 38a, 38b, 64a and 64b are connected respectively on connecting rod 68a, 68b, 70a, the 70b away from the end of supporting pillar 12 separately, wherein connecting rod 68a and 70a are fixed to left vertical rod 4 by a spot bearing 72a, correspondingly, connecting rod 68b and 70b then are fixed to the spot bearing 72b of right vertical rod 6.

As Fig. 6 and shown in Figure 7, spring 46 support curtains from as shown in Figure 2 closed condition to as shown in Figure 3 expansion process in order to the deployed condition of use.

This bearing door bolt 44 of stretching, extension by spring 46 can move towards the direction of bearing 60.Spot bearing 72a and 72b will move along direction as shown 74a and 74b, and this just makes left vertical rod 4 move along direction as shown 74a and 74b with right vertical rod 6, comes thereby allow curtain 18 to sprawl from the curtain that is fixed on 6 of left vertical rod 4 and right vertical rods.

For the traction curtain from as shown in Figure 3 in order to the deployed condition used to as shown in Figure 2 closed condition, this extracting handle 14 can move along direction of operating 76.To allow bearing saddle 34 to move along the reverse direction of spring 46 effect so down, in other words, promptly the direction towards tripod 8 moves, and just can allow bearing door bolt 44 these bearings 60 of traction.Similarly, spot bearing 72a and 72b are along moving towards lower support post 12 with the reverse direction of direction as shown 74a and 74b.

The aforesaid operations lever also can be replaced by motor (not shown), and a motor (not shown) promptly is installed, and in order to driving this linkage assembly, thereby realizes launching or drawing in curtain.

Arrive shown in Figure 11 as Fig. 9, its another embodiment of the present utility model, the special character of present embodiment is its upper gear bar 64a ' and 64b ', and it can be fixed to supporting pillar 12 ' under locking device 78 auxiliary, so curtain 18 ' can adapt to different picture ratios.As shown in Figure 9, the position display of left vertical rod 4 ' and right vertical rod 6 ' a foursquare stretching, extension screen 18 ', therefore can be shown as according to the height and the width of image be 1: 1 to a picture.

As shown in figure 10, left vertical rod 4 ' then allows to show 4: 3 picture with the position of right vertical rod 6 '.Correspondingly, allow to show the picture of 16: 9 ratio as shown in figure 11.

In sum, the utility model has overcome many deficiencies of prior art, has embodied following several big advantage:

1, take supporting pillar as support, the grip device that has increased can be avoided causing curtain because of the gravity of curtain own The tenesmus of cloth central authorities, in addition, linkage provides a plane of supporting that curtain is unlikely swing, So curtain can stably be used for projection or show, the situation of scalloping can not occur.

2, the application of the drive unit of this supporting pillar coupler link mechanism and linkage makes this practicality new The use of type is comparatively simple and easy, and the user only need operate this operating lever or motor and just can realize curtain is launched Or draw in, and the utility model is an integral body when drawing in, is convenient to place.

3, fixture makes supporting pillar can stably be inserted on the various bases the utility model folding exhibiting Screen can be fixed on smallpox, wall or the ground by fixture.

Claims

1, a kind of open-close type is showed screen, comprise left and right sides vertical rod, roller bearing, and the curtain of rolling on roller bearing, roller bearing is installed in the vertical rod of the left and right sides, launches or folds vertical rod and can stretch or draw curtain in, it is characterized in that: two vertical rods middle part is provided with supporting pillar, be connected by linkage assembly between left and right sides vertical rod and the supporting pillar, this linkage assembly comprises at least two racks, forms supporting plane by rack, this supporting pillar is provided with at least one grip device, and this grip device grips curtain.

2, open-close type according to claim 1 is showed screen, and it is characterized in that: this supporting pillar is provided with the drive unit that can operate this linkage assembly.

3, open-close type according to claim 2 is showed screen, it is characterized in that: this drive unit is supported by at least one spring.

4, open-close type according to claim 3 is showed screen, and it is characterized in that: this drive unit is an operating lever, can be driven by manpower.

5, open-close type according to claim 4 is showed screen, and it is characterized in that: this drive unit is by motor driven.

6, show screen according to any described open-close type of claim 1 to 5, it is characterized in that: this linkage assembly is provided with skewing mechanism, and this skewing mechanism one end is fixed on this supporting pillar.

7, show screen according to any described open-close type of claim 1 to 5, it is characterized in that: this supporting pillar bottom is provided with fixture, this supporting pillar can be fixed on the base by this fixture.

8, open-close type according to claim 7 is showed screen, and it is characterized in that: this fixture is a tripod.

9, open-close type according to claim 6 is showed screen, it is characterized in that: this supporting pillar bottom is provided with fixture, this supporting pillar can be fixed on the base by this fixture.

10, open-close type according to claim 9 is showed screen, and it is characterized in that: this fixture is a tripod.