JP2019184766A - Magnet screen device - Google Patents

Abstract

To provide a magnet screen device with which the freedom of an installation place is high and the fine adjustment of an installation angle is facilitated.SOLUTION: A magnet screen device 1 comprises: a screen sheet 2 in which a screen surface 2a is formed on the front side and a magnetic surface 2b is formed on the rear side, and which can be wound up and unwound; a long-sized housing 3 for accommodating the screen sheet 2 in a wound state; and a shaft member 4 for winding up the screen sheet 2 in an unwound state in the inside of the housing 3. At one end of the housing 3 at least, there is provided a first magnet 5 which is a support mechanism for causing the one end to be supported by a blackboard B, and at the other end of the housing 3 there are provided a second magnet 6 and a reduction part 7 for reducing the suction power of the magnet 6, which are adjustment support mechanisms for causing to be supported by the blackboard B after the angle of the housing 3 is adjusted centering on the first magnet 5.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a magnet screen device installed on a blackboard in a school or a company.

  2. Description of the Related Art Conventionally, a magnet screen device installed on a blackboard is used as a screen when an image is projected by an image projector such as a projector in a school or a company. Such a magnetic screen device includes a screen sheet, a winding unit for winding the screen sheet, and a housing for storing the screen sheet (for example, Patent Document 1). And Patent Document 2).

JP 2014-30970 A JP 2016-38475 A

  Patent Document 1 discloses a magnet clean device that can be installed on a blackboard by providing a fixture on one end side of a housing and locking the fixture to the upper end side of the blackboard. According to such a configuration, when the height of the user is low, the fixture cannot be locked to the upper edge of the blackboard.

  On the other hand, according to Patent Document 2, a configuration in which a magnet screen device is installed on a blackboard using a magnet is described. Thus, when the magnet screen device is attracted to the blackboard using a magnet, it is necessary to attract with a strong force in order to prevent the device body from falling. For this reason, it is difficult to finely adjust the installation angle of the magnet screen device after the magnet screen device is once installed on the blackboard. That is, when the installation angle of the magnet screen device is slightly deviated from the vertical direction, the screen may be installed obliquely when the screen is extended in the horizontal direction.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above situation, and the problem to be solved by the present invention is to provide a magnet screen device that has a high degree of freedom of installation location and facilitates fine adjustment of the installation angle. That is.

  Hereinafter, means for solving the above problems will be described.

  The magnet screen device according to the present invention stores a screen sheet having a screen surface formed on the front side and a magnetic surface formed on the rear side, which can be wound and fed, and the screen sheet in a wound state. And a winding means for winding the screen sheet in a fed-out state inside the casing, and at least one end of the casing is provided with the one end. A support mechanism for supporting the suction object is provided at the other end of the housing after the angle of the housing is adjusted around the support mechanism.

  Moreover, the one end side magnet in which the one end part of the said housing | casing adsorb | sucks to the said adsorption | suction object is provided as said support mechanism in the one end part in the said housing | casing, It is preferable that the other end side magnet which adsorb | sucks the one end part of this to the said adsorption | suction object and the reduction part which reduces the attraction | suction force by this other end side magnet are provided as said adjustment support mechanism.

  Further, it is more preferable that the reducing unit reduces the attractive force by the other end side magnet by isolating the other end side magnet and the object to be attracted.

  In addition, the reduction unit includes a protrusion that can advance and retreat with respect to the adsorption object, and extends the protrusion with respect to the adsorption object so that the other end side magnet and the adsorption object are It is more preferable to isolate.

  A magnet that is attracted to the object to be attracted; a support member that is fixed to the magnet; and a swinging member that is supported to be swingable with respect to the support member. The housing is fixed to the swinging member. The locked portion formed at one end of either the support member or the swing member, and the locked portion formed at the other end of the support member or the swing member. And an adjustment groove formed on an arc centered on the locked portion at the one other end, and the other end of the other It is preferable that the adjustment support mechanism is constituted by an adjustment member that can be inserted into the adjustment groove in the portion and a fixing member that fixes a relative position between the adjustment groove and the adjustment member.

  More preferably, the support mechanism and the adjustment support mechanism are provided at both one end and the other end of the casing.

  More preferably, the casing is provided with a level.

  According to the magnet screen device of the present invention, it is possible to secure the degree of freedom of the installation location and facilitate the fine adjustment of the installation angle of the magnet screen device.

  Further, by reducing the attracting force by the magnet with the reduction mechanism, it is possible to easily finely adjust the installation angle of the magnet screen device.

  Further, by separating the magnet and the object to be attracted, the attracting force by the magnet can be reduced with a simple configuration.

  Further, by extending the protrusion with respect to the object to be attracted, the magnet and the object to be attracted can be isolated with a simple configuration.

  Further, it is possible to easily finely adjust the installation angle of the magnet screen device by inserting the adjustment member into the adjustment groove and displacing the sliding member relative to the support member.

  Further, it can be installed even if the direction of the apparatus main body is turned upside down.

  Further, by providing a level in the housing, the user can finely adjust the installation angle of the magnet screen device visually.

The perspective view which shows the use condition of the magnet screen apparatus which concerns on 1st embodiment. (A) And (b) is the front perspective view and back perspective view which show the accommodation state of a magnet screen apparatus similarly. The rear lower perspective view which shows the structure of a reduction part. XX sectional drawing in FIG. (A) And (b) is a back lower side perspective view which shows the time of the retraction | saving of the projection part in the reduction part, and the time of extension. (A) And (b) is a right view of the magnet screen apparatus at the time of the extension and retraction of a projection part. The perspective view which shows the use condition of the magnet screen apparatus which concerns on 2nd embodiment. The perspective view which shows the structure of the magnet screen apparatus which concerns on 3rd embodiment. (A) is a right view which similarly shows the use condition of a magnet screen apparatus, (b) is a front view which shows the relationship between a peristaltic member and a supporting member. Side sectional drawing which shows the fixed state of a peristaltic member and a supporting member.

  Hereinafter, a magnet screen device (hereinafter simply referred to as “screen device”) 1 according to the first embodiment will be described with reference to FIGS. 1 to 6. Arrows shown in the drawings indicate directions in the usage state of the screen device 1.

  The screen device 1 according to the present embodiment includes a screen sheet 2 having a screen surface 2a formed on the front surface side and a magnetic surface 2b formed on the rear surface side. The screen sheet 2 is unrolled as shown in FIG. 1 (hereinafter referred to as “use state” of the screen device 1), and is wound up as shown in FIG. It is possible to transition to “the storage state” of the apparatus 1.

  A resin-made front end support member 2c that supports the right end side of the screen sheet 2 is fixed to the front end portion of the screen sheet 2 (the right end portion in FIG. 1). A tip handle 2d for a user to grip the tip support member 2c is formed at a substantially central portion in the vertical direction of the tip support member 2c. Further, as shown in FIG. 2B, a tip magnet 2e is fixed to the rear surface of the tip support member 2c.

  The screen device 1 includes a housing 3 that is a long resin member that houses the screen sheet 2 in a wound state. The housing 3 closes a main body 3a that is a hollow cylindrical member having a part of the side surface opened, an upper bottom 3b that closes an upper opening of the main body 3a, and a lower opening of the main body 3a. And a lower bottom portion 3c. As shown in FIGS. 2 and 3, the upper bottom 3b and the lower bottom 3c are fixed to the main body 3a with screws S1.

  A housing handle 3d for a user to hold the screen device 1 is formed at a substantially central portion in the vertical direction on the left side surface of the main body 3a. As shown in FIG. 2B, the first magnet 5 is fixed to the upper part of the rear surface of the housing 3 as one end side magnet. A second magnet 6 is fixed to the lower portion of the rear surface of the housing 3 as the other end side magnet. Further, a level device 8 is provided at a substantially central portion in the vertical direction on the front surface of the housing 3.

  The screen device 1 includes a shaft member 4 that is a winding unit that winds the screen sheet 2 in a fed-out state inside the housing 3. A base end portion (left end portion in FIG. 1) of the screen sheet 2 is fixed to the shaft member 4. The upper and lower ends of the shaft member 4 are rotatably supported by the upper bottom 3b and the lower bottom 3c of the housing 3, and are urged counterclockwise in a plan view by a spiral spring (not shown).

  As the shaft member 4 rotates counterclockwise by the urging force of the spiral spring, the screen sheet 2 is wound inside the housing 3. In the present embodiment, when the screen sheet 2 is fed and wound, the urging force of the spiral spring can be released by operating the screen sheet 2. In addition, it can also be set as the structure which pays out and winds up the screen sheet 2 automatically by making a winding means into an electric type.

  As shown in FIGS. 1 and 6, the screen device 1 uses the screen surface 2a of the screen sheet 2 as a screen in an image projector such as a projector by adsorbing the rear surface of the screen device 1 to the blackboard B as an object to be adsorbed. Is done. Specifically, the first magnet 5 and the second magnet 6 fixed to the rear surface of the housing 3, the magnetic surface 2b of the screen sheet 2, and the front end magnet 2e fixed to the rear surface of the front end support member 2c are replaced with the blackboard B. The screen device 1 is installed on the blackboard B by being adsorbed onto the blackboard B. The application of the screen device 1 is not limited to the screen of the image projector, and can be used as, for example, an electronic blackboard or a whiteboard.

  When installing the screen device 1 on the blackboard B that is the suction object, the user holds the housing handle 3d of the screen device 1 in the housed state, and the axial direction of the housing 3 is directed vertically. The first magnet 5 and the second magnet 6 are attracted to the blackboard B. Next, the tip handle 2d of the tip support member 2c is grasped, and the screen sheet 2 is pulled out to the right side. After the screen sheet 2 is expanded to a desired area, the tip magnet 2e of the tip support member 2c is attracted to the blackboard B. At the same time, the magnetic surface 2b of the screen sheet 2 is also attracted to the blackboard B, and the screen device 1 is put into use.

  As described above, according to the screen device 1 according to the present embodiment, the rear surface of the screen device 1 is installed by being adsorbed on the blackboard B that is the object to be adsorbed. For this reason, since it is not necessary to lock a fixture etc. to the upper end side of the blackboard B, it becomes possible to improve the freedom degree of the installation location of the screen apparatus 1. FIG.

  Contrary to the above procedure, it is also possible to first adsorb the tip support member 2c to the blackboard B, then spread the screen sheet 2 against the blackboard B, and finally adsorb the housing 3 to the blackboard B. It is. Further, the screen device 1 may be used in a state where the axial direction of the housing 3 is oriented in the horizontal direction (a mode in which the screen sheet 2 is expanded upward or downward).

  In the screen apparatus 1, in order to prevent the apparatus main body from dropping, the first magnet 5 and the second magnet 6 need to be attracted to the blackboard B with a strong magnetic force. For this reason, in the screen device 1 according to the present embodiment, the installation angle of the screen device 1 can be finely adjusted before the housing 3 is completely adsorbed and fixed to the blackboard B.

  Specifically, a first magnet 5 that attracts the upper end of the casing 3 to the blackboard B is provided as a support mechanism at the upper end of the casing 3 of the screen device 1. On the lower end portion side of the housing 3, a second magnet 6 that attracts the lower end portion of the housing 3 to the blackboard B and a reduction unit 7 that reduces the attracting force by the second magnet 6 are used as an adjustment support mechanism. It is provided.

  As shown in FIGS. 3 and 4, the reduction unit 7 includes a case member 71, an operation member 72, a pinion gear 73, a slide member 74, a guide member 75, and the like. The case member 71 is a cylindrical member having a bottom surface on the upper side and having a through hole (not shown) formed at the center of the bottom surface. Two fixing holes 71 a are opened on the outer peripheral surface of the case member 71. The fixing column 31 formed on the upper surface of the lower bottom portion 3c is inserted into the fixing hole 71a. A male screw portion is formed on the outer peripheral surface of the fixed column 31. Then, the case member 71 is fixed to the upper surface of the lower bottom portion 3c by screwing the nut N into the male screw portion of the fixed column 31. As shown in FIG. 4, a substantially 1/4 arc-shaped regulating groove 71 b is formed on the lower side of the bottom surface of the case member 71.

  An operation member 72 is accommodated inside the case member 71. The operation member 72 includes a rotation shaft 72a, an operation portion 72b, and a restriction protrusion 72c (see FIG. 4). The operation member 72 is assembled to the housing 3 so as to be rotatable about a rotation shaft 72a that passes through a through hole formed in the case member 71. The user rotates the operation member 72 by rotating the operation unit 72b. As shown in FIG. 4, the restricting projection 72 c is displaced within the region of the restricting groove 71 b of the case member 71. For this reason, the rotation angle of the operation member 72 is restricted to about 90 degrees. A pinion gear 73 is fixed to the middle of the rotating shaft 72a so as not to be relatively displaced.

  A guide member 75 is accommodated in the housing 3. A screw S <b> 2 is screwed into the guide member 75 from the inner peripheral side of the case member 71, so that the guide member 75 is fixed to the case member 71 so as not to be relatively displaced. A slide member 74 is accommodated in the guide member 75 so as to be slidable inside the guide member 75. A rack gear 74 a that meshes with the pinion gear 73 is formed on the slide member 74. A protrusion 74 b is formed at the tip of the slide member 74. As shown in FIGS. 4 and 5, the slide member 74 is provided so that a protrusion 74 b can be extended rearward from an opening 3 e formed in the main body 3 a of the housing 3.

  In the reduction unit 7 configured as described above, when the user rotates the operation unit 72b of the operation member 72 in the direction of the arrow R in FIG. 5A (clockwise direction in plan view), the rotation shaft 72a. The pinion gear 73 fixed to is rotated clockwise in FIG. Thereby, since the rack gear 74a is displaced rearward, the protrusion 74b extends rearward from the opening 3e as shown by an arrow P in FIG. Conversely, when the user rotates the operation portion 72b of the operation member 72 in the direction opposite to the arrow R (counterclockwise direction in plan view), the projection 74b is formed in the housing as shown in FIGS. 4 and 5A. Retreat inside the body 3.

  In the screen device 1 according to the present embodiment, when the user rotates the operation unit 72b as described above in a state where the first magnet 5 and the second magnet 6 are attracted to the blackboard B, FIG. As shown in FIG. 4, the projection 74b extends to isolate the second magnet 6 and the blackboard B (at this time, the first magnet 5 is adsorbed to the blackboard B, so the screen device 1 does not fall). . Thereby, since the force with which the second magnet 6 attracts the blackboard B is reduced, the user once finely adjusts the installation angle of the housing 3 after the screen device 1 is once installed on the blackboard B. The axial direction can be rearranged in the vertical direction. At this time, the user can adjust the angle of the housing 3 while viewing the level device 8. Thereafter, by rotating the operation portion 72b in the reverse direction, the projection 74b is retracted as shown in FIG. 6B, and the second magnet 6 and the blackboard B are attracted.

  Thus, in the present embodiment, the first magnet 5 is provided at the upper end portion of the housing 3 as a support mechanism for supporting the upper end portion of the housing 3 on the blackboard B. The second magnet 6 and the reduction unit 7 are provided as an adjustment support mechanism that is supported by the blackboard B after adjusting the angle of the housing 3 around the support mechanism. Thereby, when the screen sheet 2 is fed out in the horizontal direction, the installation angle of the screen device 1 can be adjusted to the vertical direction, and thus the screen sheet 2 can be prevented from being installed obliquely.

  As described above, the reduction unit 7 in the screen device 1 is configured to isolate the second magnet 6 and the blackboard B by extending the protrusion 74 b that can advance and retract relative to the blackboard B to the blackboard B. . Thereby, it is possible to isolate the second magnet 6 and the blackboard B with a simple configuration.

  In addition, it is also possible to make the reduction part which reduces the force which the 2nd magnet 6 adsorb | sucks the blackboard B into another structure different from this embodiment. For example, the second magnet 6 and the blackboard B can be separated from each other by retracting the second magnet 6 in a direction away from the blackboard B (front). In addition, it is also possible to adopt a configuration in which another object is inserted between the second magnet 6 and the blackboard B. Also with these configurations, the force with which the second magnet 6 attracts the blackboard B is reduced. Therefore, after the user once installs the screen device 1 on the blackboard B, the user finely adjusts the installation angle of the housing 3 to It becomes possible to reset the axial direction of the body 3 in the vertical direction.

  Even when the screen sheet 2 is spread after the tip support member 2c is first adsorbed to the blackboard B and finally the case 3 is adsorbed to the blackboard B, the installation angle of the case 3 is slightly reduced as described above. The tip support member 2c can be adsorbed to the blackboard B after adjustment. That is, even in such an installation mode, when the screen sheet 2 is fed out in the horizontal direction, the angle of the front end support member 2c can be adjusted in the vertical direction, so that the screen sheet 2 is prevented from being installed obliquely. it can.

  Next, the screen device 101 according to the second embodiment will be described with reference to FIG. In the following embodiments, detailed description of the same configuration as the screen device 1 according to the first embodiment will be omitted, and different configurations will be mainly described.

  In the screen device 101 according to this embodiment, in addition to the configuration of the screen device 1 according to the above-described embodiment, a fall prevention magnet 102 is coupled to the upper end of the housing 3 via a coupling cord 103. The fall prevention magnet 102 is formed with a protrusion 102a for a user to grip when the fall prevention magnet 102 is removed from the blackboard B. In the screen device 101, the fall prevention magnet 102 is attracted to the blackboard B, so that the screen device 101 can be prevented from falling onto the floor even when the housing 3 is detached from the blackboard B.

  Next, the screen apparatus 201 according to the third embodiment will be described with reference to FIG. The screen device 201 according to the present embodiment is different from the screen device 1 according to the embodiment in the configuration installed on the blackboard B. Specifically, as shown in FIGS. 8 to 10, the screen device 201 is replaced with the first magnet 5, the second magnet 6, and the reduction unit 7 in the screen device 1, and the support member 202, the magnet 203, and the swing member. 204, and a plate-shaped female screw member 205 as a fixing member.

  The support member 202 is a long plate-like member, and a planar magnet 203 is fixed to the back surface. The support member 202 is installed on the blackboard B when the magnet 203 is attracted to the blackboard B, which is an object to be attracted. Locking bolts 202a and 202a projecting forward are provided at the upper end and the lower end of the support member 202.

  The peristaltic member 204 is a long plate-like member whose central portion bulges forward, and is supported so as to be capable of peristating with respect to the support member 202. Specifically, an adjustment groove 204a is opened along the left-right direction at the upper end and lower end of the swing member 204. In addition, a locked portion 204b in which the adjustment groove 204a is further cut out is formed on the outer side in the vertical direction at the center portion of the adjustment groove 204a. Specifically, each adjustment groove 204a is formed in an arc shape centered on a locked portion 204b (a lower locked portion 204b with respect to the upper adjustment groove 204a) formed on the opposite side. Since the upper locking bolt 202a is inserted into the upper adjustment groove 204a and the locked portion 204b is locked to the locking bolt 202a, the swinging member 204 is supported by the support member 202 so as to be swingable. is there.

  The casing 3 that accommodates the screen sheet 2 and the shaft member 4 in the screen device 201 is fixed to the sliding member 204 with screws S3. For this reason, the casing 3 is installed on the blackboard B by the swinging member 204 being supported by the support member 202 in a state where the support member 202 is installed on the blackboard B. That is, the upper locking bolt 202a in the support member 202 and the upper locked portion 204b in the swing member 204 constitute a support mechanism for supporting the upper end of the housing 3 on the blackboard B.

  As shown in FIG. 9B, when the upper locked portion 204b is locked to the locking bolt 202a of the support member 202, the locking bolt 202a is inserted into the lower adjustment groove 204a of the swinging member 204. It is inserted. At this time, since the lower locking bolt 202a is positioned inside the adjustment groove 204a, the swinging member 204 can swing left and right as indicated by an arrow H in FIG. 9B. A female screw member 205 is screwed onto the locking bolt 202 a, and the position of the swing member 204 relative to the support member 202 can be fixed by tightening the female screw member 205.

  In this embodiment, after the user once installs the screen device 201 on the blackboard B, the user swings the swinging member 204 with respect to the support member 202 so that the axial center direction of the housing 3 becomes the vertical direction. It is possible to finely adjust the installation angle. Thereafter, the relative position of the swing member 204 with respect to the support member 202 is fixed by tightening the male screw member 205. That is, in the present embodiment, the angle of the housing 3 is adjusted around the support mechanism by the lower adjustment groove 204a, the locking bolt 202a as the adjustment member, and the female screw member 205, and then supported on the blackboard B. The adjustment support mechanism is configured.

  In the present embodiment, as described above, the locking bolt 202a, which is an adjustment member, is inserted into the adjustment groove 204a so that the peristaltic member 204 can be displaced relative to the support member 202. As a result, the installation angle of the housing 3 can be easily fine-tuned so that the axial direction of the housing 3 is the vertical direction.

  In contrast to this embodiment, it is also possible to form the adjustment groove and the locked portion on the support member 202 and form the locking bolt on the peristaltic member 204. That is, a locking bolt as an adjustment member can be inserted into the adjustment groove of the support member 202 so that the peristaltic member 204 can be displaced relative to the support member 202. Even in such a configuration, the installation angle of the housing 3 can be easily finely adjusted so that the axial center direction of the housing 3 is the vertical direction.

  In addition, the support mechanism and the adjustment support mechanism according to the present embodiment are respectively provided at both one end and the other end of the housing 3. Specifically, the upper locking bolt 202a and the upper locked portion 204b constitute a support mechanism, and the lower locking bolt 202a, the adjustment groove 204a, and the female screw member 205 serve as an adjustment support mechanism. It is composed. Since these structures are formed on both the upper and lower ends of the screen device 201 as shown in FIGS. 9 and 10, even when the screen device 201 is turned upside down, it functions similarly. That is, in the screen device 201 according to the present embodiment, the installation angle of the housing 3 is finely adjusted so that the axial center direction of the housing 3 is the vertical direction regardless of whether the screen sheet 2 is extended to the left or right. It makes it possible.

1 Screen device 2 Screen sheet
2a Screen surface 2b Magnetic surface
2c Tip support member 2d Tip handle
2e Tip magnet 3 Case
3a body 3b upper bottom
3c Lower bottom 3d Case handle
3e Opening 4 Shaft member
5 First magnet 6 Second magnet
7 Reduction part 8 Level
31 Fixed column 71 Case member
71a Fixing hole 71b Restriction groove
72 Operating member 72a Rotating shaft
72b Operation part 72c Restriction protrusion
73 Pinion gear 74 Slide member
74a Rack gear 74b Projection
75 Guide member 101 Screen device
102 Fall prevention magnet 102a Projection
103 Connection code 201 Screen device
202 Support member 202a Locking bolt
203 Magnet 204 Peristaltic member
204a Adjustment groove 204b Locked part
205 Female thread member B Blackboard
H Arrow N Nut
P arrow R arrow

Claims (7)

A screen sheet is formed on the front side, a magnetic surface is formed on the rear side, and can be wound and fed, and a screen sheet,
A long casing for storing the screen sheet in a wound state;
Winding means for winding the screen sheet in a fed-out state inside the housing; and
At least one end portion of the housing is provided with a support mechanism for supporting the one end portion on the suction object,
A magnet screen device, wherein the other end portion of the housing is provided with an adjustment support mechanism that is supported by the object to be attracted after adjusting the angle of the housing around the support mechanism. One end of the casing is provided with one end side magnet for attracting the one end of the casing to the object to be attracted, as the support mechanism.
On the other end side of the housing, the other end side magnet that attracts the one end portion of the housing to the object to be attracted, and a reduction unit that reduces the attracting force by the other end side magnet are the adjustment support. The magnet screen device according to claim 1, which is provided as a mechanism.   3. The magnet screen device according to claim 2, wherein the reducing unit reduces the attracting force by the other end side magnet by isolating the other end side magnet and the object to be attracted.   The reduction unit includes a protrusion that can advance and retreat with respect to the object to be attracted, and isolates the other end side magnet and the object to be attracted by extending the protrusion with respect to the object to be attracted. The magnet screen device according to claim 3. A magnet to be attracted to the attraction object;
A support member fixed to the magnet;
A swinging member supported so as to be swingable with respect to the support member,
The housing is fixed to the sliding member;
The locked portion formed at one end of either the support member or the swing member, and the locked portion formed at the other end of the support member or the swing member. The supporting mechanism is configured by a locking portion that locks,
An adjustment groove formed on an arc centered on the locked portion at the one other end, an adjustment member insertable into the adjustment groove at the other other end, the adjustment groove, and the adjustment The magnet screen device according to claim 1, wherein the adjustment support mechanism is configured by a fixing member that fixes a relative position to the member.   The magnet screen device according to claim 5, wherein each of the support mechanism and the adjustment support mechanism is provided at both one end and the other end of the casing.   The magnet screen device according to claim 1, wherein the housing is provided with a level.

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