JP2018049270A - Projector support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a projector support device capable of easily ascending and descending a projector.SOLUTION: A projector support device 100 includes; a first stage support member 111 arranged on a wall; a plurality of support members configured by the vertically slidable stages (n+1); and a projector support part 120 arranged on the (n+2)-th support member. The k-th support member and the (k+2)-th stage support member are connected by a connection member which is a ribbon shaped. The connection member has one end thereof connected to the k-th support member and the other member connected to the (k+2)-th stage support member so as to has the lowest point between the k-th support member and the (k+2)-th stage, and controls a relative position between the k-th support member and the (k+2) support member. The (k+1)-th support member is supported at the lowest point, and vertically moves in a sliding manner according to the movement of the lowest point accompanied with the variation of the relative position of the (k+2)-th stage support member for the k-th support member.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a projector support device attached to a wall surface, a blackboard, a whiteboard, and the like, and more particularly to a projector support device having a vertical position adjustment function.

  In general, classes and presentations are carried out using a blackboard, a whiteboard, a large screen, or the like at educational sites such as schools, training venues, and presentation venues. Moreover, not only when a character is directly written with a chalk or a pen on such a blackboard, but also a character and a figure are projected using a projector.

  The projector can be operated by being placed on a pedestal installed in front of a blackboard or the like, which is the projection surface of the video, but may be used in a state of being fixed to the upper part of the blackboard or the like. Recently, there is also a mechanism for projecting an image on an appropriate location such as a blackboard by installing a rail near the top of a fixed board such as a blackboard and installing a projector support device that runs the projector along the rail. It has been adopted (for example, Patent Document 1).

  By running the projector as described above, it is possible to project an image to any place in the horizontal direction of the blackboard, but it is possible to adjust the height of the viewpoint according to the degree of student growth For this reason, there is a demand to project an image in an arbitrary position in the vertical direction so that the image can be seen well from the rear seat. In order to respond to such a request, there is one that adopts a blackboard in which a blackboard and a projector are integrated, and adjusts the height by moving the blackboard and the projector up and down together (for example, Patent Document 2). 3).

JP 2014-83893 A JP 2014-151531 A JP 2009-119663 A

  However, when such a mechanism is adopted, it is necessary to raise and lower the blackboard (or electronic blackboard and interactive board) together with the projector, so it is necessary to make the device large in order to raise and lower it alone. There is.

  Therefore, the present invention has been made in view of the above-described problems, and one of the objects of the present invention is to provide a multistage support member having a plurality of support members that are slidable in the vertical direction. Accordingly, it is an object of the present invention to provide a projector support device that can easily lift and lower the projector.

  In order to achieve the above object, the present invention comprises at least the following configuration or executes a procedure. In the following description, in order to facilitate the understanding of the present invention, reference numerals and the like shown in the drawings may be added, but each component of the present invention is limited to those shown in the drawings. It should be construed broadly to the extent that those skilled in the art can technically understand.

A projector support device according to one aspect of the present invention is a projector support device having a (n + 2) -stage (n is a natural number) support member, and a first-stage support member disposed on a wall surface, and a vertical direction. A plurality of support members configured to be (n + 1) -stage capable of sliding, and a projector holding section that is disposed on the (n + 2) -th stage support member and holds the projector. The k + 2) -stage support member is connected by a string-shaped connection member (k is a natural number of 1 to n), and the connection member includes the k-th stage support member and the (k + 2) -th stage support member. One end is connected to the k-th stage support member, the other end is connected to the (k + 2) -th stage support member, and the k-th stage support member And the (k + 2) stage support part The (k + 1) -th stage support member is supported at the lowest point position of the coupling member, and the relative position of the (k + 2) -th stage support member with respect to the k-th stage support member According to the movement of the lowest point position associated with the fluctuation of the above, the sliding movement is made up and down.
With this configuration, according to the projector support device of one aspect of the present invention, the (n + 2) -stage support member including a plurality of support members that are slidable in the vertical direction is provided, and the (n + 2) -stage support member is provided. Since the arranged projector holding unit holds the projector, the projector can be easily moved up and down.

More preferably, the k-th stage support member, the (k + 1) -th stage support member, and the (k + 2) -th stage support member have a nested structure in this order.
With such a configuration, according to the projector support device according to one aspect of the present invention, the plurality of support members are stored in order, so that they can be refreshed without being complicated visually or structurally.

More preferably, in the nesting structure, the kth support member is stored in the (k + 1) th support member, and the (k + 1) th support member is stored in the (k + 2) th support member. It is characterized by having a structure.
With this configuration, according to the projector support device according to one aspect of the present invention, the support member can be stored by the adjacent support member at any position in the vertical direction, and also visually and structurally. It is not complicated and can be refreshed. In addition, since the (n + 2) -th stage support member on which the projector holding unit is disposed is the outermost structure, it is necessary to provide a groove or the like when the projector holding unit moves up and down when a nested structure is adopted. Disappears.

More preferably, the (n + 2) -th stage support member includes a caster that travels on the wall surface.
With this configuration, according to the projector support device according to one aspect of the present invention, the projector can be moved up and down more easily because the projector support device further supports vertical movement while maintaining a certain distance from the wall surface. .

In addition, each of the support members includes a runner that travels along an adjacent support member.
With this configuration, according to the projector support device according to one aspect of the present invention, each support member can be moved up and down more smoothly.

More preferably, the (k + 2) -th stage support member includes a guide rail in the vertical direction, and the (k + 1) -th stage support member slides in the vertical direction along the guide rail. And
With this configuration, according to the projector support device according to one aspect of the present invention, the support member slides along the guide rail, so that the projector can be moved up and down more smoothly.

More preferably, it further comprises a (n + 2) stepped support member and a constant load spring for stretching the projector held by the projector holding portion.
With this configuration, according to the projector support device according to one aspect of the present invention, since the constant load spring continues to suspend the support member and the projector with a constant tension, the projector is held at any position in the vertical direction. The projector held by the unit is not pulled up and is not lowered by gravity. In other words, it is balanced in the vertical direction, and the projector can be prevented from abruptly rising or falling and can remain at a desired position.

More preferably, the apparatus further comprises a weight that can be attached to and detached from any of the support members and adjusts a load stretched by the constant load spring.
With this configuration, according to the projector support device according to one aspect of the present invention, the balance can be finely adjusted in the vertical direction with respect to the load, so that the projector can be reliably kept at a desired position. In addition, it is possible to cope with the aging deterioration of the constant load spring that has been used, and furthermore, since various types of constant load springs can be employed according to the type of constant load spring used, various constant load springs can be employed. .

More preferably, it further comprises a pulley disposed at the lowest point position of the connecting member, and the connecting member is connected to the k-th stage support member and the (k + 2) -th stage support member via the pulley. The relative position with respect to is controlled.
With this configuration, according to the projector support device according to one aspect of the present invention, the connecting member includes the distance on the k-th stage support member side and the (k + 2) -th stage support member side via the pulley. Therefore, the support members can be slid more smoothly. As a result, the projector can be lifted and lowered more easily.

More preferably, each of the support members includes a cushion member at an upper end and a lower end thereof.
With this configuration, the projector support device according to one aspect of the present invention can absorb an impact with an adjacent support member when each support member moves to the upper limit or lower limit position.

More preferably, the first stage support member has a traveling portion that is slidable along a guide rail provided in a horizontal direction on the wall surface.
With this configuration, according to the projector support device according to one aspect of the present invention, the projector can be arranged at a desired position even in the lateral direction.

  ADVANTAGE OF THE INVENTION According to this invention, the projector support apparatus which can raise / lower a projector easily is realizable by providing the multistage type support member provided with two or more support members which can be slid to an up-down direction.

1 is a side view showing a projector support apparatus 100 according to a first embodiment of the present invention. 1 is a front view showing a projector support apparatus 100 according to a first embodiment of the present invention. 1 is a plan view showing a projector support apparatus 100 according to a first embodiment of the present invention. It is a schematic side view for demonstrating the motion of each support member in the projector support apparatus 100 which concerns on the 1st Embodiment of this invention. It is a side view which shows the projector support apparatus 200 which concerns on the 2nd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. The embodiment described below is merely a specific example for carrying out the present invention, and is not intended to limit the present invention.

<First Embodiment>
FIG. 1 is a side view showing a projector support apparatus 100 according to the first embodiment of the present invention, and FIG. 2 is a front view showing the projector support apparatus 100 according to the first embodiment of the present invention. The projector support device 100 has a four-stage support member and supports the projector P.

  The projector support apparatus 100 includes a first stage support member 111, a second stage support member 112, a third stage support member 113, a fourth stage support member 114, a runner 115, and a cushion member 116. The projector holding unit 120, the constant load spring 130, the connecting member (not shown), the pulley (not shown), the caster 140, the weight (not shown), the hook hanger 150, and the traveling unit 160. With.

  When the projector P is positioned at the top, the first stage support member 111 is the second stage support member 112, the second stage support member 112 is the third stage support member 113, and the third stage The support members 113 are stored in a nested manner so as to be stored in the fourth stage support members 114, respectively. From this state, the fourth stage support member 114 moves downward by hooking the hook hanger 150 or pulling it downward while directly gripping by the operator. Along with this, the third stage support member 113 and the second stage support member 112 are pulled out, and the four-stage support member extends downward as a whole. At this time, since the projector holding unit 120 is disposed on the fourth stage support member 114, the projector P held on the projector holding unit 120 moves in accordance with the downward movement of the fourth stage support member 114. It will go down.

  That is, lowering the projector P from the uppermost position means that the four-stage support member is pulled downward from the state in which the support member is nested. On the other hand, when the projector P is raised, the pulled-out four-stage support member is stored in a nested manner.

  In the present embodiment, each support member includes a runner 115. Specifically, the second stage support member 112 includes a runner 115 that travels along the first stage support member 111, and the third stage support member 113 is connected to the second stage support member 112. The fourth stage support member 114 includes a runner 115 that travels along the third stage support member 113.

  By providing such a runner 115, when the projector P is moved up and down, each support member slides smoothly.

  Here, the back surfaces of the second stage support member 112, the third stage support member 113, and the fourth stage support member 114 (opposite to the side on which the viewer located in front of the image projection surface is located). The runners 115 are disposed on the side), but guide rails may be provided on the support members, for example, so that the support members slide smoothly in addition to the runners 115.

  Further, the fourth stage support member 114 is provided with a caster 140 that rolls in contact with the wall surface. The caster 140 supports the projector P when it moves up and down while keeping the distance between each support member and the wall surface constant.

  Each support member includes a cushion member 116 at the upper end and the lower end thereof. The cushion member 116 absorbs an impact with an adjacent support member when each support member moves to the upper limit or lower limit position. The cushion member 116 may be any member that can absorb an impact, and is composed of, for example, a spring, sponge, rubber, silicon, resin, or a combination thereof.

  The first stage support member 111 is provided with a constant load spring 130, and the projector P held by the projector holding unit 120 is stretched from the second stage support member 112 via the fourth stage support member 114. It is built. Since the constant load spring 130 continues to suspend the support member and the projector P with a constant tension, the projector P held by the projector holding unit 120 may arbitrarily rise at any position in the vertical direction. It will not descend due to gravity. In other words, by balancing in the vertical direction, the projector P is prevented from abruptly rising or falling and is kept at a desired position.

  Here, the two constant load springs 130 are arranged in the vertical direction on the first stage support member 111, but the number and arrangement position of the constant load springs 130 are not limited to this, for example, Only one constant load spring larger than this (load resistance) may be used, or many small constant load springs may be used. What is necessary is just to employ | adopt an appropriate thing according to the magnitude | size and load of the supporting member and projector P to suspend about the kind, number, arrangement | positioning, etc. of a constant load spring.

  Furthermore, a weight may be mounted in the vicinity of the caster 140 for detailed adjustment of the load. If the constant load spring 130 used has deteriorated over time and has lost its tension, it can be balanced by reducing the weight. Moreover, it can balance according to the kind of constant load spring 130 to be used by increasing / decreasing a weight.

  Among the support members in the present embodiment, the first stage support member 111 is fitted to a slide rail disposed in the horizontal direction on the wall surface via the traveling unit 160, and does not move in the vertical direction. It is configured to move horizontally along the slide rail.

  If the traveling unit 160 arranged on the first stage support member 111 moves in the horizontal direction along the slide rail arranged on the wall surface, along with the movement of the first stage support member 111 in the horizontal direction, Naturally, the entire projector support apparatus 100 including the support members and the projector P in the second and lower stages moves horizontally.

  As described above, the projector support device 100 can be moved in the horizontal direction by the traveling unit 160 arranged in the first stage support member 111 and the slide rail arranged in the horizontal direction on the wall surface. An image can be projected on a desired region even in the horizontal direction.

  FIG. 3 is a plan view showing the projector support apparatus 100 according to the first embodiment of the present invention. As shown in the figure, in the present embodiment, the fourth stage support member 114 is disposed on the outermost side, and the third stage support member 113, the second stage support member 112, and the first stage support member 111 are sequentially arranged. Is configured to store.

  The fourth-stage support member 114 is configured to cover the third-stage support member 113, the second-stage support member 112, and the first-stage support member 111 in order from the viewer side located in front of the image projection surface. Since each support member is accommodated in the vertical direction, the upper and lower sides are opened, and each side surface is covered so that the internal structure cannot be seen. Note that the top surface of the first stage support member 111 and the bottom surface of the fourth stage support member 114 may be covered so that the internal structure is not visible, and are open in consideration of installation and maintenance work. It does not matter even if it is a shape.

  In the projector support device 100 according to the present embodiment, the fourth stage support member 114 is arranged on the outermost side, and the projector holding unit 120 is arranged on the fourth stage support member 114. As a result, it is not necessary to configure a special mechanism for the projector holding unit 120 and the projector P to move up and down even when the support members of the nested structure are taken in and out (expanded).

  On the other hand, in the case where the fourth stage support member 114 is arranged inside the nested structure, when the support members of the nested structure are taken in and out (expanded / contracted), the fourth stage support member 114 is provided with a projector holding unit. What is necessary is just to comprise the mechanism (For example, the opening part is provided in each support member) so that 120 may pass each support member.

  Next, the mechanism by which the first stage support member 111 to the fourth stage support member 114 move in the vertical direction will be described in detail.

  FIG. 4 is a schematic side view for explaining the movement of each support member in the projector support apparatus 100 according to the first embodiment of the present invention. In this figure, the wire-like connecting member 171 has one end connected to the vicinity of the center of the first stage support member 111 and the other end connected to the vicinity of the upper part of the third stage support member 113. The first stage support member 111 and the third stage support member 113 are connected. Similarly, the wire-like connecting member 172 has one end connected to the vicinity of the center of the second stage support member 112 and the other end connected to the vicinity of the upper part of the fourth stage support member 114, so that the second The stage support member 112 and the fourth stage support member 114 are connected.

  Further, since the connecting member 171 and the connecting member 172 are wire-shaped, when both ends are connected to the support member, the central portion hangs down and the lowest points a and b are formed, respectively. In the connecting member 171, the lower end portion of the second stage support member 112 is supported at the lowest point a formed between the first stage support member 111 and the third stage support member 113. Similarly, in the connecting member 172, the lower end of the third stage support member 113 is supported at the lowest point b formed between the second stage support member 112 and the fourth stage support member 114. .

  4 shows a state where the projector P is located at the uppermost part. When the fourth stage support member 114 is pulled downward from this state, the lowest point b also moves downward in accordance with the downward movement of the fourth stage support member 114. If it does so, the 3rd step | paragraph support member 113 currently supported in the lowest point b formed of the connection member 172 will also move below correspondingly. Similarly, the second stage support member 112 supported at the lowest point a formed by the connecting member 171 also moves downward in accordance with the downward movement of the third stage support member 113. become.

  In FIG. 4, the right diagram shows a state in which the second stage support member 112, the third stage support member 113, and the fourth stage support member 114 have moved downward. When the fourth stage support member 114 is moved upward from this state, the lowest point b is also moved upward in accordance with the upward movement of the fourth stage support member 114. . If it does so, the 3rd step | paragraph support member 113 currently supported in the lowest point b formed of the connection member 172 will also move upward corresponding to this. Similarly, the second stage support member 112 supported at the lowest point a formed by the connecting member 171 also moves upward in accordance with the upward movement of the third stage support member 113. become.

  Thus, according to the mechanism in which the first stage support member 111 to the fourth stage support member 114 shown in FIG. 4 move in the vertical direction, for example, when the fourth stage support member 114 is raised and lowered, The second stage support member 112 and the third stage support member 113 are also raised and lowered in the same manner by the member 171 and the connecting member 172. In other words, the nesting state (accommodated ratio) of each support member also changes in the same state, and the vertical movement of the multistage support member in the projector support apparatus 100 is integrated and smooth as a whole. It can be understood as a movement.

  Furthermore, as compared with the configuration in which each support member moves sequentially, the impact between the support members at each stage can be avoided, and the burden on the support member can be reduced.

  A pulley may be arranged at each lowest point. By arranging the pulley, it is possible to prevent the connecting member from being smoothly moved and caught at the lowest point position, and to slide each support member more smoothly. As a result, the projector P can be lifted and lowered more easily.

  As described above, according to the projector support device 100 according to the first embodiment of the present invention, the projector P can be easily raised and lowered because the projector support device 100 includes the four-stage support member that is slidable in the vertical direction. it can.

  In the present embodiment, the projector support device 100 having a four-stage support member has been described as an example, but the support member in the present invention is not limited to the four-stage system, and is a three-stage system. Also, it may be a five-stage system or a six-stage system or more.

  For example, in the case of a three-stage type, the number of connecting members is one, and specifically, a connecting member 171 that connects the first-stage support member 111 and the third-stage support member 113. The second stage support member 112 is disposed at the lowest point position.

  Further, in the case of the five-stage type, a connection member for connecting the third-stage support member 113 and the fifth-stage support member is added, and at the lowest point position of the added connection member. A fourth stage support member 114 is disposed. Even in the case of six or more stages, a support member and a connecting member may be added similarly.

<Second Embodiment>
FIG. 5 is a side view showing a projector support apparatus 200 according to the second embodiment of the present invention. In FIG. 5, the projector support apparatus 200 is different from the projector support apparatus 100 according to the first embodiment of the present invention in that magnets 201 and 202 are provided. In FIG. 5, the same components as those of the projector support device 100 according to the first embodiment of the present invention are denoted by the same reference numerals, and detailed description thereof is omitted.

Magnets are provided in the vicinity of the caster 140 and in the vicinity of the hook hanger 150, respectively.
The magnet 201 provided in the vicinity of the caster 140 is not completely bonded to a board surface (magnet type) such as a blackboard, a white board, or a wall surface, and is provided so as to be separated from the board surface by about 1 mm. By disposing such a magnet, it is possible to exhibit a function as a brake that prevents the projector holding unit 120 from dropping suddenly. In addition, although not essential, if a constant load spring 130 is further added and combined with this, it becomes possible to exhibit even higher braking performance.

  The magnet 202 provided in the vicinity of the hook hanger 150 is bonded to a board surface (magnet type) such as a blackboard, a white board, or a wall surface when the projector P is fixed. Pulling away from the plate surface releases the bonded state. By pulling the hook downward in this state, the projector holding part 120 extends downward while the caster 140 rolls on the plate surface. After the arm is lowered to an arbitrary position, if the magnet 202 is adhered to the plate surface, the arm can be fixed at that position.

  As described above, according to the projector support device 200 according to the second embodiment of the present invention, it is possible to provide a projector support device provided with an elevating mechanism whose fixing position can be adjusted by the magnets 201 and 202. In addition, this magnet may be arranged together with the weight.

  The present invention can be applied not only to a fixed board but also to a stand board. Further, the present invention can also be adopted when a projector is installed in order to project an image directly on a wall surface without installing a board.

  Further, the projector holding unit 120 may have a tilt adjustment mechanism so that the vertical and / or horizontal angles of the projector P being held can be adjusted.

  Furthermore, if the structure of the projector holding unit 120 is used, not only the projector but also, for example, electronic devices such as a television and a monitor installed at a high position, and a bulletin board can be supported as movable. .

  The specific description of each embodiment of the present invention has been given above. The above description is merely an embodiment, and the scope of the present invention is not limited to this embodiment, but should be broadly interpreted to the extent that a person skilled in the art can grasp.

  The present invention can be used for a projector support device or the like, and is useful when, for example, an object installed at a higher position is movably supported.

100, 200 Projector support device 111 First stage support member 112 Second stage support member 113 Third stage support member 114 Fourth stage support member 115 Runner 116 Cushion member 120 Projector holding part 130 Constant load spring 140 Caster 150 Hook hanger 160 traveling part 171 connecting member a
172 connecting member b
201, 202 Magnet P Projector

Claims (11)

A projector support device having a support member of (n + 2) step type (n is a natural number),
A first stage support member disposed on the wall surface;
A plurality of support members composed of (n + 1) stages that are slidable in the vertical direction;
A projector holding unit arranged on the (n + 2) -th stage support member and holding the projector;
The k-th stage support member and the (k + 2) -th stage support member are coupled by a coupling member having a string shape (k is a natural number of 1 to n),
The connection member has one end connected to the k-th stage support member and the other end connected to the k-th stage support member so as to have a lowest point between the k-th stage support member and the (k + 2) -th stage support member. Connected to the (k + 2) -th stage support member and controlling the relative position between the k-th stage support member and the (k + 2) -th stage support member;
The (k + 1) -th stage support member is supported at the lowest point position of the connecting member, and the lowest point associated with a change in the relative position of the (k + 2) -th stage support member with respect to the k-th stage support member A projector support device that slides up and down in accordance with the movement of the position.   2. The projector support device according to claim 1, wherein the k-th stage support member, the (k + 1) -th stage support member, and the (k + 2) -th stage support member have a nested structure in order.   The nesting structure is such that the k-th stage support member is stored in the (k + 1) -th stage support member, and the (k + 1) -stage support member is stored in the (k + 2) -th stage support member. The projector support device according to claim 2, wherein the projector support device is characterized in that   4. The projector support device according to claim 1, wherein the (n + 2) -th stage support member includes a caster that travels on the wall surface. 5.   5. The projector support device according to claim 1, wherein each of the support members includes a runner that travels along an adjacent support member. 6. The (k + 2) -th stage support member includes a guide rail in the vertical direction,
The projector support apparatus according to claim 1, wherein the (k + 1) -th stage support member slides up and down along the guide rail.   The projector support apparatus according to claim 1, further comprising a constant load spring that stretches the projector held by the (n + 2) stepped support member and the projector holding unit.   The projector support device according to claim 7, further comprising a weight that is attachable to and detachable from any of the support members and adjusts a load stretched by the constant load spring. Further comprising a pulley disposed at the lowest point position of the connecting member;
9. The connection member according to claim 1, wherein the connection member controls a relative position between the k-th stage support member and the (k + 2) -th stage support member via the pulley. Projector support device.   The projector support device according to claim 1, wherein each of the support members includes a cushion member at an upper end and a lower end thereof. 11. The projector support according to claim 1, wherein the first stage support member includes a traveling unit that is slidable along a guide rail provided in a horizontal direction on the wall surface. 11. apparatus.

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