JP5358862B2 - Screen display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a curtain type display device configured to easily attach/detach a take-up shaft and a display curtain. <P>SOLUTION: The curtain type display device has an expansion structure including a shaft connecting member 301 and a shaft member 303 joined to each other, and a slidably incorporated shaft member 302. The display device includes: a lower take-up shaft 34 supported by a driving shaft 38 and a driven shaft 39, and rotationally driven by the driving force of a motor 31; an upper take-up shaft 24 disposed parallel to the lower take-up shaft 34, and rotationally driven; and a take-up shaft attachment part with punched holes, disposed at each end thereof. The take-up shaft attachment part at one end of the display curtain is attached to the display curtain attachment part 320 of the lower take-up shaft 34 with a fixing screw 5 which engages with a screw hole 304, and the take-up shaft attachment part at the other end of the display curtain is attached to the upper take-up shaft 24 in the same manner. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a curtain-type display device that displays a predetermined display object by winding or folding a strip-shaped display curtain on which a plurality of display objects are placed.

  2. Description of the Related Art Conventionally, there is a curtain-type display device that displays a predetermined advertisement by attaching a display curtain on which a plurality of advertisements are printed to a take-up shaft, and rotating the take-up shaft with a motor or the like to take up the display curtain. (For example, see Patent Document 1).

  In this type of curtain display device, an advertisement to be displayed can be changed by replacing the display curtain with a new one. In order to replace the display curtain, generally, only the display curtain is removed from the take-up shaft, and a new display curtain is attached to the take-up shaft. There are various methods for attaching the display curtain to the take-up shaft, but when the display curtain is wound, the display curtain is peeled off from the rotated take-up shaft, or the position and orientation of the display curtain are not attached. If it is accurate and deviates from a predetermined position, the advertisement cannot be displayed correctly. Therefore, when replacing the display curtain, the display curtain needs to be correctly positioned with respect to the take-up shaft and securely mounted. Further, when the winding shaft becomes old or dirty, not only the display curtain but also the winding shaft is replaced with a new one.

JP 2004-4776 A

  However, as shown in FIG. 11A, which is a rear view of the conventional curtain type display device 70, and FIG. 11B, which is an explanatory view of a winding shaft device 71 provided in the curtain type display device 70, The conventional curtain type display device 70 includes a winding shaft device 71 in a main body frame 74, and each of the winding shaft devices 71 has a rod-shaped winding shaft 72 attached to a support 73 at both ends. Was composed. In order to remove the take-up shaft 72 from the display device body, the take-up shaft device 71 and the main body frame 74 are disassembled, the take-up shaft 72 is shifted in the longitudinal direction, and the take-up shaft is supported from the drive shaft 78 that supports the take-up shaft 72. It was necessary to remove 72. For this reason, it has been very troublesome to replace the winding shaft 72.

  In the technique of Patent Document 1, the display curtain is not attached to the take-up shaft, and is extended by a large number of rollers and sent according to the rotation of the rollers. However, the display curtain is simpler as shown in FIGS. In the take-up shaft device 71 of the curtain type display device 70 adopting a simple structure, the display curtain 75 is directly attached to the take-up shaft 72 and taken up. When the display curtain 75 of such a curtain type display device 70 is replaced, it is necessary to securely attach the newly installed display curtain 75 so that the display curtain 75 is not easily detached from the winding shaft 72. However, the display curtain 75 is generally large, and it is difficult to mount the display curtain 75 while accurately positioning it with respect to the take-up shaft 71, and adjustment takes time and effort. In the technique of Patent Document 1, the adhesive tape 76 is used to attach the display curtain 75 to the take-up shaft 72. However, when the display curtain 75 is attached to the predetermined application position 77, the display once attached is used. If the position of the curtain 75 is shifted, it becomes necessary to re-paste to correct the position. At the time of re-attachment, the glue or fragments of the peeled adhesive tape 76 tend to remain on the take-up shaft 72, and the take-up shaft 72 must be replaced or removed for cleaning.

  In view of the above circumstances, an object of the present invention is to provide a curtain type display device in which a winding shaft can be easily replaced.

  The curtain-type display device of the present invention includes: a strip-shaped display curtain, a winding shaft on which one end of the display curtain is attached, and which can be rotated around an axis to wind up the display curtain; and the winding shaft A curtain-type display device comprising a pair of winding shaft support portions that rotatably support the winding shaft at both ends, and drive means for rotationally driving the winding shaft, wherein the winding shaft includes the pair of winding shafts. A telescopic structure capable of expanding and contracting between an extended state having a length dimension larger than the interval between the shaft support portions and a shortened state having a length dimension smaller than the interval between the pair of winding shaft support portions; In the shortened state, the take-up shaft is released from the pair of take-up shaft support portions when the support of the shaft support portion is released, and when both ends are attached to the pair of take-up shaft support portions in the extended state, It is supported by the shaft support part and is driven by the driving means to be rotatable. ”

  Here, the configuration of the driving unit is not particularly limited, and an electric motor or a manual winding device can be exemplified.

  Moreover, the expansion-contraction structure should just be a structure which can change the length of a winding shaft, and a structure in particular is not limited. A structure that combines cylindrical members like a fishing rod and can be expanded and contracted by sliding the members in the longitudinal direction, or a structure in which multiple members are screwed together, such as a desk leg adjustment mechanism. Examples that can be relatively rotated and expanded and contracted can be given. In addition to these structures, a structure whose length can be adjusted by a spring or a locking tool may be provided.

  According to the present invention, the take-up shaft can be expanded and contracted, and the take-up shaft supported at both ends by the pair of take-up shaft support portions is made shorter than the interval between the pair of take-up shaft support portions. Can be removed from the take-up shaft support. In addition, the retractable part of the take-up shaft is extended between the pair of take-up shaft support parts, and both ends of the take-up shaft are attached to the take-up shaft support part so that the take-up shaft is attached to the take-up shaft support part. , And can be rotationally driven by the driving means.

  Further, the present invention provides: "The winding shaft has a first shaft member having an insertion portion formed at one end thinner than an outer diameter at one end, and a receiving portion at which a part or all of the insertion portion can be inserted at one end. The telescopic structure is configured such that the insertion portion is inserted into the receiving portion, and the first shaft member and the second shaft member are slidably connected in the longitudinal direction. It may be a thing.

  According to this configuration, the first shaft member and the second shaft member are slidably connected to form an expandable structure, and the take-up shaft can be easily expanded and contracted by sliding.

  In addition, the present invention provides the following: “The first shaft member and the second shaft member are skewered and mounted in the retracted state on the winding shaft, and the first shaft member and the second shaft member slide in the longitudinal direction. It further includes a slide restricting member for restricting “.

  Here, the “collapsed state” indicates that a part of the slide restricting member does not protrude from the outer surface of the winding shaft. Examples of such a slide restricting member include a countersunk screw, a set screw, a sinking rivet, and the like.

  According to this configuration, since the slide restricting member restricts the first shaft member and the second shaft member from being slidable, the take-up shaft is shortened when not intended, such as when the curtain display device is in use. This prevents the take-up shaft from falling off.

  In addition, the present invention provides a "winding shaft mounting portion provided at substantially the center of one end of the display curtain and having a perforation; and provided at substantially the center of the winding shaft and inserted through the perforation to display the display curtain. And a display screen mounting portion that pivotally supports the display screen mounting portion.

  According to this configuration, the display curtain is mounted so that the take-up shaft mounting portion is pivotally supported by the display curtain mounting portion, so that the orientation of the display curtain can be adjusted by rotating around the axis of the display curtain mounting portion. It is. When the display curtain is mounted, the display curtain can be wound in the correct direction by rotating the winding shaft while adjusting the direction of the display curtain. Therefore, it is easier to adjust the orientation of the display curtain as compared with the conventional case where the display curtain is attached to the take-up shaft.

  In addition, the present invention provides a "winding shaft mounting portion provided at substantially the center of one end of the display curtain and having a perforation; and provided at substantially the center of the winding shaft and inserted through the perforation to display the display curtain. A display screen mounting portion that pivotally supports the display screen mounting portion, and the display screen mounting portion is provided at the insertion portion of the first shaft member.

  The insertion portion of the first shaft member is formed to be thinner than the outer dimension of the winding shaft so as to be inserted into the second shaft member. According to this configuration, the display curtain mounting portion is provided in the insertion portion, and the display curtain mounting portion is mounted closer to the shaft center by the dimensional difference between the outer dimensions of the insertion portion and the take-up shaft. It becomes difficult to protrude. As a result, the display curtain mounting portion does not become an obstacle during winding, and the display curtain can be smoothly wound.

  Further, according to the present invention, “the width of the portion of the chamfered portion that contacts the winding shaft gradually increases as the display curtain is wound around the winding shaft”. Can do.

  If the display curtain is attached to the take-up shaft only at the approximate center of one end, when the display curtain is wound, there is a risk that the corner of the display curtain will be wound and bent. According to the configuration, the display curtain has a shape in which the corner is cut obliquely and is chamfered, and when the initial chamfered portion of the winding is wound around the winding shaft, the display curtain is wound in a state where the corner is bent. It can be wound up smoothly.

  Further, according to the present invention, “the first shaft member has a smooth portion, and the display curtain mounting portion is provided in the smooth portion”.

  If the display curtain mounting portion is provided on an uneven surface or a curved surface, it is difficult to smoothly slide the take-up shaft mounting portion and the display curtain mounting portion, making it difficult to adjust the orientation of the display curtain. On the other hand, according to this configuration, since the display curtain hanging portion is provided in the smooth portion, the attachment portion of the display curtain can slide smoothly along the smooth portion.

  Further, according to the present invention, “the radial dimension from the shaft center of the display curtain mounting portion to the most projecting portion is smaller than the maximum radial dimension of the winding shaft”.

  According to this configuration, the display curtain mounting portion does not protrude outward from the cylindrical surface of the take-up shaft, so that when the display curtain is wound, the display curtain mounting portion does not cause unevenness and is smoothly wound. Can be taken.

  As described above, according to the curtain type display device of the present invention, the winding shaft has a telescopic structure, and the winding shaft can be retracted by extending and retracting the main body frame without disassembling the main body frame. Since the shaft can be attached and detached, it is possible to provide a curtain type display device in which the winding shaft can be easily replaced.

The perspective view which looked at the curtain type display apparatus which is one Embodiment of this invention from diagonally left front. FIG. 6 is a six-sided view of the curtain type display device with the display curtain removed. The perspective view which looked at the curtain type display apparatus which removed the display curtain from diagonally right back. The expanded sectional view which shows the cross section in the AA of FIG. The perspective view which shows the structure of a winding shaft apparatus. Explanatory drawing which shows the structure of a winding shaft. The perspective view which shows the structure of a shaft connection member. FIG. 3 is a three-side view of a shaft connecting member. Explanatory drawing which shows the mode of expansion / contraction of a winding shaft. Explanatory drawing which shows the attachment method of a display curtain. Explanatory drawing which shows the structure of the winding shaft of the conventional curtain type display apparatus.

  Hereinafter, a curtain type display device 1 according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view of the curtain type display device as viewed from diagonally left front, FIG. 2 is a six-sided view of the curtain type display device with the display curtain removed, and FIG. 3 shows the curtain with the display curtain removed. It is the perspective view which looked at the type | formula display apparatus from diagonally right back, and FIG. 4 is the expanded sectional view which showed the cross section in the AA of FIG. FIG. 5 is a perspective view showing the configuration of the lower winding shaft device of the curtain type display device, and FIG. 6 is an explanatory view showing the configuration of the winding shaft. FIG. 7 is a perspective view showing a shaft coupling member of the winding shaft, and FIG. 8 is a three-view diagram of the shaft coupling member. FIG. 9 is an explanatory view showing how the take-up shaft expands and contracts, and FIG. 10 is an explanatory view showing how to attach the display curtain to the take-up shaft.

  As shown in FIGS. 1 and 2, the curtain display device 1 is configured such that a display curtain 40 is visible through an opening 3 of a main body frame 2 that has a substantially rectangular frame shape when viewed from the front. The display curtain 40 is disposed so as to be stretched between the upper winding shaft 24 and the lower winding shaft 34 in the curtain display device 1. The curtain type display device 1 is used with a light source unit (not shown) mounted on the back side. The light source unit includes a fluorescent lamp and an LED as a light source, emits light toward the front, transmits the display curtain 40, and enhances the visibility of the display mode printed on the display curtain 40.

  As shown in FIGS. 2 to 4, the upper winding shaft 24 is arranged at a position shielded by the main body frame 2 in a front view and on the upper part of the curtain type display device 1 with an axis extending in the left-right direction. It is installed. The lower winding shaft 34 is disposed at a position shielded by the main body frame 2 in a front view and at a lower portion of the curtain type display device 1 and substantially parallel to the upper winding shaft 24. The ends of the long strip-shaped display curtain 40 are attached to the upper winding shaft 24 and the lower winding shaft 34, respectively, and the upper winding shaft 24 and / or the lower winding shaft until the display curtain 40 is stretched. 34, the display curtain 40 is stretched up and down between the upper winding shaft 24 and the lower winding drive unit 34. In this way, one of the upper winding shaft 24 or the lower winding drive unit 34 winds the display curtain 40, and the other moves the display curtain 40 in conjunction with it to change the display while maintaining the expansion of the display curtain 40. Is possible.

  Next, the lower winding shaft device 30 will be described with reference to FIG. The lower winding shaft device 30 includes a motor base 32 and a bearing bracket 33 that support a lower winding shaft 34 at both ends. On the motor base 32 side of the lower winding shaft 34, a drive shaft 38 (see FIG. 9) is inserted into a shaft insertion hole (not shown) of the lower winding shaft 34, and on the bearing bracket 33 side, A driven shaft 39 (see FIG. 9) disposed on the same axis is inserted into the shaft insertion hole of the lower winding shaft 34, and the drive shaft 38, the lower winding shaft 34, and the driven shaft 39 are integrated. Can be rotated. A motor 31 is mounted on the motor base 32, and the motor 31 is configured by using a pulley, a belt, and the like, and a drive shaft 38 is connected via a drive force transmission mechanism (not shown) incorporated in the motor base 32. The rotary shaft is rotated, and the driven shaft 39 and the lower winding shaft 34 are rotationally driven together with the drive shaft 38. Here, the lower winding shaft 34 corresponds to the winding shaft of the present invention, and the combination of the motor 31 and the driving force transmission mechanism corresponds to the driving means of the present invention. Further, the motor base 32, the bearing bracket 33, the drive shaft 38, and the driven shaft 39 correspond to the winding shaft support portion of the present invention.

  The upper winding shaft device 20 has substantially the same shape as the lower winding shaft device 30 and is provided on the upper part of the main body frame 2. As shown in the rear view of FIG. 2, the lower winding shaft device 30 includes a motor base 32 on the left side when viewed from the rear side and a bearing bracket 33 on the right side, while the upper winding shaft device 30 has an upper winding. The spindle device 20 includes a motor base 22 on the right side and a bearing bracket 23 on the left side. The lower winding shaft device 30 is in the direction in which the motor 31 is positioned above the lower winding shaft 34, whereas the upper winding shaft device 20 has the motor 21 positioned below the upper winding shaft 24. It is arranged in the direction.

  As shown in FIGS. 5 and 6, the lower winding shaft 34 is configured such that the end of the shaft coupling member 301 is inserted into the receiving portion 307 and the receiving portion 308, respectively. A shaft member 303 is sandwiched therebetween.

  As shown in FIGS. 7 and 8, the shaft coupling member 301 has a shape in which a part of a cylindrical peripheral surface 315 is cut out in a planar manner and a smooth portion 311 is provided. The smooth portion 311 is provided with three screw holes 304 to 306. Four caulking holes 312 are provided in the circumferential surface 315 at positions that divide the circumferential surface 315 into four at regular intervals in the circumferential direction. As will be described later, the screw hole 304, together with the fixing screw 5 (see FIG. 10B), constitutes the display curtain mounting portion 320.

  The shaft connecting member 301 is inserted into the receiving portion 308 of the shaft member 303, and the shaft connecting member 301 and the shaft member 303 are positioned. Then, the shaft member 303 is pressed in the radial direction at a location corresponding to the crimping hole 312 to be crimped. As a result, the shaft connecting member 301 and the shaft member 303 are connected and fixed in a predetermined positional relationship. A shaft insertion hole into which the driven shaft 39 is inserted is provided on the end surface of the shaft member 303 on the side attached to the bearing bracket 33, and the wound display curtain 40 is provided at the end. A guiding flange 310 is provided along the circumferential surface. Here, a combination of the shaft connecting member 301 and the shaft member 303 corresponds to the first shaft member of the present invention.

  Further, the shaft connecting member 301 is inserted into the receiving portion 307 of the shaft member 302, and two sets of screw holes are matched so that the screw holes 305 and 306 correspond to the screw holes 313 and 314, respectively. Is installed in a cranial state. In this way, the shaft member 302 and the shaft coupling member 301 are coupled and fixed by the set screws 316 and 317. As with the shaft member 303, the shaft member 302 is also provided with a shaft insertion hole on the end surface, and a flange 309 along the circumferential surface at the end portion. Here, the shaft connecting member 301 corresponds to the insertion portion of the present invention, the shaft member 302 corresponds to the second shaft member of the present invention, and the grom screws 316 and 317 correspond to the slide restricting member of the present invention.

  Hereinafter, the expansion and contraction mechanism of the lower winding shaft 34 will be described with reference to FIG. As shown in FIG. 9A, the lower winding shaft 34 includes a drive shaft 38 inserted in the shaft member 303 and a driven shaft 39 inserted in the shaft member 302 so that the motor base 32 and the bearing bracket 33 are interposed. It is attached. As described above, the shaft member 302 and the shaft member 303 are fixed via the shaft coupling member 301, and the attached lower winding shaft 34 is driven to rotate around the shaft center as the drive shaft 38 rotates. Is done.

  When removing the lower winding shaft 34 from the main body frame 2, first, the female screws 316 and 317 are removed using a tool. Thereby, fixation of the shaft coupling member 301 and the shaft member 302 is released, and the shaft member 302 can slide with respect to the shaft coupling member 301. As shown in FIG. 9B, when the shaft member 302 is slid in the direction of shortening the lower winding shaft 34, the total length of the lower winding shaft 34 is larger than the distance between the drive shaft 38 and the driven shaft 39. It becomes a small shortened state, and it becomes possible to remove the lower winding shaft 34 from the main body frame 2.

  When the lower winding shaft 34 is attached, the lower winding shaft 34 in a shortened state is inserted into a predetermined position between the drive shaft 38 and the driven shaft 39, and the drive shaft 38 is inserted into the end on the shaft member 303 side. To insert. Then, contrary to the case where the lower winding shaft 34 is removed from the main body frame 2, the shaft member 302 is slid in the extending direction to extend the lower winding shaft 34, and the end of the shaft member 302 is driven. The shaft 39 is inserted. Then, the screw holes 305 and 306 are positioned so as to correspond to the screw holes 313 and 314, respectively, and the shaft screws 302 and 317 are attached to join the shaft member 302 and the shaft connecting member 301 together. As a result, the slide of the shaft member 302 is restricted, the lower winding shaft 34 is not shortened, and rotates together with the rotation of the drive shaft 38 while being supported by the drive shaft 38 and the driven shaft 39.

  Next, the configuration of the display curtain 40 and a method for attaching the display curtain 40 to the lower winding shaft 34 will be described with reference to FIG. The display curtain 40 is a plastic sheet having a band shape and printed with advertisements and the like, and chamfered portions 404 and 405 having chamfered corners are formed at the corners. In addition, a winding shaft mounting portion 401, which is a small piece made of plastic, protrudes from and adheres to the approximate center of the end portion 402. The display curtain 40 and the take-up shaft mounting portion 401 are both made of plastic and are flexible and can be easily bent when taking up. The take-up shaft mounting portion 401 has a perforation 403 formed in the center in the left-right direction. When the display curtain 40 is suspended by supporting the display curtain 40 by the perforation 403, the display curtain 40 is substantially in the left-right direction. It hangs down in a suspended state.

  Hereinafter, a method of attaching the display curtain 40 to the lower winding shaft 34 will be described. As shown in FIG. 10B, the winding shaft attaching portion 401 is attached to the smooth portion 311 of the shaft connecting member 301, the perforation 403 is matched with the screw hole 304, and the fixing screw 5 is passed through the perforation 403 to reach the screw hole. 304 is screwed. As a result, the display curtain 40 is rotatably joined to the lower winding shaft 34 by the fixing screw 5 and is suspended from the fixing screw 5 as a fulcrum. Thereby, the direction can be adjusted by rotating the display curtain 40 around the fixing screw 5. In this state, as shown in FIG. 10C, when the winding shaft 34 is rotated to wind up the display curtain 40, the width of the display curtain 40 in contact with the winding shaft 34 becomes the width of the chamfered portions 404 and 405. According to the shape, it gradually increases smoothly from W1 to W2 shown in FIG. W1 is the width of the end portion 402, and W2 is the width of the display curtain 40 at portions other than the chamfered portions 404 and 405. After the chamfered portions 404 and 405 are wound around the winding shaft 34, as shown in FIG. 10D, the chamfered portions 404 and 405 do not appear on the appearance, and the display curtain 40 has a strip shape having a width of W2. Presents. Here, the fixing screw 5 and the screw hole 304 correspond to the display curtain mounting portion of the present invention.

  As described above, according to the curtain type display device 1 according to the embodiment of the present invention, the length of the lower winding shaft 34 attached to the curtain type display device 1 is determined by the method described above. And the winding shaft 34 can be removed from the main body of the curtain type display device 1 by setting the shortened state to be shorter than the distance between the driven shafts 39. Further, a shortened lower winding shaft 34 is inserted between the motor base 32 and the bearing bracket 33, and the lower winding shaft 34 is extended and assembled to the drive shaft 38 and the driven shaft 39 to be attached to the curtain type display device. 1 can be attached. In this way, the lower winding shaft 34 can be attached to and detached from the curtain display device 1 without disassembling the curtain display device 1.

  Further, according to the curtain type display device 1, the shaft connecting member 301 and the shaft member 302 are slidably connected to form a telescopic structure, and the shaft member 302 is attached to the shaft connecting member 301 and the shaft member 303. The winding shaft 34 can be easily expanded and contracted by sliding.

  According to the curtain type display device 1, when the grub screws 316 and 317 are attached, the slide of the shaft member 302 with respect to the shaft coupling member 301 and the shaft member 303 is restricted, so the curtain type display device 1 is used for advertisement display. When the winding shaft 34 is shortened when not intended, such as in the middle of the operation, an accident that falls off the drive shaft 38 and the driven shaft 39 is prevented.

  Further, the female screws 316 and 317 are attached in a crinkled state and do not protrude outward from the peripheral surface 315, so that they interfere with the winding of the display curtain 40, or the display curtain 40 is wrinkled. Winding can be performed smoothly.

  According to the curtain type display device 1, since the display curtain 40 is pivotally supported by the fixing screw 5, the direction of the display curtain 40 can be adjusted / changed around the axis of the fixing screw 5. By rotating the winding shaft 34 while adjusting the display curtain 40 so that the orientation of the display curtain 40 is correct, the display curtain 40 can be adjusted to the correct orientation. If the display curtain 40 is suspended by the fixing screw 5 and hung down, and the display curtain 40 is aligned in the correct direction while being wound by the lower winding shaft 34 or the upper winding shaft 24, one worker can be provided. The display curtain 40 can be mounted on the main body of the curtain display device 1. Therefore, the orientation of the display curtain 40 can be easily adjusted as compared with the conventional case where the display curtain 40 is attached to the take-up shaft 34. Further, even when the orientation of the display curtain 40 is deviated, it is possible to rewind and start over. Accordingly, since the winding shaft 34 is not soiled by re-sticking or the like, the frequency of cleaning and replacement of the winding shaft 34 can be greatly reduced.

  Further, according to the curtain display device 1, the display curtain 40 includes the chamfered portions 404 and 405 having a shape in which the corners are obliquely cut off, so that the display curtain 40 is not caught in a state where the corners are bent. The entire end portion 402 of the display curtain 40 is not attached to the take-up shaft 34, and is simply supported by the fixing screw 5 at the take-up shaft attaching portion 401 provided at the approximate center of the end portion 402. Even if it exists, since a corner | angular part is not caught at the beginning of winding, it can prevent that the corner | angular part is wound in the bent state, and the display curtain 40 may be damaged.

  Further, according to the curtain type display device 1, the shaft coupling member 301 is formed to be narrower than the shaft member 302 and the shaft member 303, and a screw hole 304 (display curtain mounting portion 320) is provided in the shaft coupling member 301. Therefore, the fixing screw 5 of the display curtain mounting portion 320 does not protrude outward from the peripheral surface 315 of the lower winding shaft 34. Thereby, when winding up the display curtain 40, it is possible to smoothly wind up the display curtain 40 while preventing the surface from becoming uneven or wrinkled.

  According to the curtain type display device 1, the display curtain mounting portion 320 is provided on the smoothing portion 311, so that the attached take-up shaft mounting portion 401 can slide smoothly along the smoothing portion 311. Thereby, the orientation can be easily adjusted when the display curtain 40 is attached to the lower winding shaft 34 and wound.

  In addition, embodiment of this invention is not limited to said structure, As shown below, it can change variously.

  That is, in the curtain display device 1 described above, the display curtain 40 is mounted on the upper winding shaft 24 and the lower winding shaft 34, but the curtain display device of the present invention has a winding shaft. It is not limited to having a plurality of winding shafts, and may have only one winding shaft.

  In the curtain display device 1 described above, the display curtain 40 is detachable from the upper winding shaft 24 and the lower winding shaft 34. However, the present invention is not limited to this. The display curtain may be bonded to the take-up shaft. Further, the display curtain may be attached to the take-up shaft by other attachment methods. If the display curtain is attached to the take-up shaft in advance, the trouble of positioning the take-up shaft can be saved.

  Further, in the curtain type display device 1 described above, the upper winding shaft device 20 and the lower winding shaft device 30 are each provided with a motor to rotate the winding shaft. The plurality of winding shafts may be driven by the power of one motor. Thereby, the configuration can be further simplified.

  Further, the attachment and detachment of the winding shaft and the display curtain 40 is not limited to that performed from the rear side of the main body frame 2, and may be detachable from the front of the main body frame 2. This eliminates the need to work from the rear side by opening / closing or attaching / detaching the main body frame 2, and the winding shaft and the display curtain 40 can be replaced more easily.

  In the curtain display device 1 described above, the upper winding shaft 24 and the lower winding shaft 34 are arranged in parallel, and when the display curtain 40 is wound, a display printed on the display curtain 40 is displayed. Although a configuration that moves in the vertical direction is shown, a configuration may be adopted in which the two winding shafts are arranged in parallel on the left and right, and the display moves in the horizontal direction. In addition to being installed in a wall advertising space of a building or attached to a stand or the like, it may be used by being installed in a vehicle such as a bus or train.

  In the curtain display device 1 described above, the display curtain mounting portion (screw hole 304) is provided in the shaft coupling member 301. However, the display curtain mounting portion is not limited to this. The member 302 may be provided. In addition, the shaft coupling member 301 and the shaft member 303 are combined, but the shaft coupling member 301 and the shaft member 303 may be detachably coupled, or may be integrated as a single member. It may be formed into.

  In the curtain type display device 1 described above, the winding shaft mounting portion 401 is bonded to the end portion 402. However, the present invention is not limited to this, and the winding shaft mounting portion 401 is integrated. Alternatively, a display screen 40 that is molded may be used. If it is integrally formed, the manufacturing process can be simplified and the strength can be improved.

DESCRIPTION OF SYMBOLS 1 Curtain type display apparatus, 5 Fixing screw (display curtain mounting part), 31 Motor (drive means), 32 Motor base (winding shaft support part), 33 Bearing bracket (winding shaft support part), 38 Drive shaft (winding) Take-up shaft support portion), 39 driven shaft (winding shaft support portion), 34 lower take-up shaft (winding shaft), 40 display curtain, 301 shaft connecting member (first shaft member), 302 shaft member (second shaft) Shaft member), 303 shaft member (first shaft member), 304 screw hole (display curtain mounting portion), 307 receiving portion, 311 smoothing portion, 315 circumferential surface, 316, 317 female screw (slide regulating member), 320 display screen mounting Part, 401 winding shaft mounting part, 403 perforation, 404,405 chamfering part

Claims (8)

A strip-shaped display curtain,
One end of the display curtain is attached, and a winding shaft capable of rotating around the axis and winding the display curtain;
A pair of winding shaft supports that rotatably support the winding shaft at both ends;
A curtain-type display device comprising driving means for rotating the winding shaft,
The winding shaft is between an extended state in which the length dimension is larger than the interval between the pair of winding shaft support portions and a shortened state in which the length dimension is smaller than the interval between the pair of winding shaft support portions. Has a stretchable structure,
In the shortened state, the take-up shaft is released from the pair of take-up shaft support portions, and the both ends are attached to the pair of take-up shaft support portions in the extended state. And a curtain type display device which is supported by the shaft support portion and is driven by the driving means to be rotatable. The winding shaft includes a first shaft member having an insertion portion formed at one end thinner than the outer diameter at one end, and a second shaft member having at one end a receiving portion into which a part or all of the insertion portion can be inserted. ,
2. The telescopic structure is configured such that the insertion portion is inserted into the receiving portion, and the first shaft member and the second shaft member are slidably coupled in a longitudinal direction. The curtain type display device described in 1.   A slide restricting member that is mounted on the take-up shaft in a collapsed state by skewing the first shaft member and the second shaft member and restricts sliding in the longitudinal direction of the first shaft member and the second shaft member; The curtain type display device according to claim 2, further comprising: A winding shaft mounting portion provided at substantially the center of one end of the display curtain and having a perforation;
4. The display curtain mounting portion according to claim 1, further comprising a display curtain mounting portion that is provided at substantially the center of the winding shaft and is inserted into the perforation to pivotally support the display curtain. The curtain type display device described in 1. A winding shaft mounting portion provided at substantially the center of one end of the display curtain and having a perforation;
A display curtain mounting portion provided at substantially the center of the winding shaft, and inserted through the perforations to pivotally support the display curtain;
The curtain display device according to claim 2 or 3, wherein the display curtain mounting portion is provided in the insertion portion of the first shaft member. The display curtain has a chamfered portion with a corner portion cut off obliquely,
6. The width of a portion of the display curtain that abuts on the winding shaft gradually increases in the chamfered portion as the display curtain is wound on the winding shaft. The curtain type display device described in 1. The first shaft member has a smooth portion;
6. The curtain display device according to claim 5, wherein the display curtain mounting portion is provided in the smooth portion.   8. The curtain type display device according to claim 7, wherein a dimension in a radial direction from the shaft center of the display curtain mounting portion to a most protruding portion is smaller than a maximum dimension in the radial direction of the winding shaft. .

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