JP3128240U - Foldable bulletin board frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: A bulletin board frame that is extremely useful when applied to a bulletin board that is repeatedly installed and removed in a short period of time, such as a bulletin board for an election poster, more specifically, it is folded in a compact manner. There is provided a bulletin board frame that can be used and has sufficient durability even after repeated use, and can be easily assembled.
SOLUTION: At least three parallel and same-length horizontal frame members 1 to 3, and at least two different streak members 4, 5, 6, and 7 arranged to cross each of the frame members 1 to 3 at an appropriate inclination angle. The crossing members 4, 5, 6, 7 and the horizontal frame members 1 to 3 are pivotally fixed to the horizontal frame members 1 to 3 and fixedly slidable. The combination of the above, the mounted state of the bulletin board 23 in which the horizontal frame members 1 to 3 are spread apart from each other, and the bulletin board 23 to be folded by bringing the horizontal frame members 1 to 3 close to each other The removal state can be created.
[Selection] Figure 3

Description

  The present invention relates to a bulletin board frame that is particularly useful when applied to a temporary bulletin board, in which the installation and removal are performed in a short period of time because the installation period is as short as about two weeks like a bulletin board for an election poster. .

  The general structure of a bulletin board, such as a conventional election poster, is a rectangular veneer board (plywood) that is formed horizontally, and a poster surface is formed on the back surface. In many cases, the wood is formed by placing reinforcing bars or the like in the middle portion and hitting these constituent members with nails or the like. For example, in the case of election, this wooden bulletin board needs to be manufactured and prepared in advance, so that it requires a considerable space for storage.

  In addition, the above-mentioned wooden bulletin board is installed on the ground or wall with a pedestal made of wood or the like attached to the back side of the wooden bulletin board so as to stand on the ground or to be fixed to the wall. However, when the posting period ends like an election poster, the bulletin board must be removed. However, even with this removal, there are the following problems.

  In other words, the removed bulletin board is disassembled and discarded as combustible garbage, etc. if not reused, and if it is to be reused, the posters displayed etc. are removed and removed for storage for the next use. Therefore, when it is discarded, not only is it time-consuming to disassemble it, but it also wastes resources, and even when it is reused, it is a bulletin board. Since it is stored in the same size as when it was exhibited, there is a problem of storage space.

  Therefore, in the present invention, a bulletin board frame that is extremely useful when applied to a bulletin board that is repeatedly installed and removed for a short period of time, such as a bulletin board for an election poster, and more specifically, a compact frame. An object of the present invention is to provide a bulletin board frame that can be folded, has sufficient durability even after repeated use, and can be easily assembled.

  The structure of the bulletin board frame of the present invention, which has been made for the purpose of solving the above-mentioned problems, includes at least three parallel and equal-length horizontal frame members, and at least two cross-arranged with each frame member at an appropriate inclination angle. Each crossing point of the stiffener material and the horizontal frame member is selected to be combined with the horizontal frame member in a fixed manner and to be slidably coupled to each other. It is characterized in that it is possible to form a mounted state of the bulletin board in which the horizontal frame members are spread apart from each other and a removed state of the bulletin board that is folded by bringing the horizontal frame members close to each other.

  In the above-described configuration, the frame of the present invention may have a configuration in which the streak material is provided in an upper and lower symmetric posture with respect to the intermediate horizontal frame material. Here, it is sufficient to provide at least one or two pairs of different materials, but a structure using three or more pairs may be used.

  In addition, the frame of the present invention can be detachably provided with vertical frame members for connecting the horizontal frame members to both side ends of the horizontal frame members when the horizontal frame members are in a separated posture to which a bulletin board can be attached. .

  Further, a structure in which a different material or a different material and a leg attachment portion are provided on the back surface of the horizontal frame material, and a bulletin board attachment portion is formed on the front surface of the horizontal frame material or the front surface of the horizontal frame material and the vertical frame material. You can also In this case, the frame material and legs are preferably made of metal, preferably light metal such as aluminum.

  The structure of the bulletin board frame according to the present invention includes at least three parallel frame members having the same length, a first bracing member arranged at an appropriate angle with the transverse frame member, and the first bracing member. A crossing angle between the crossing angles of the first and second stiffeners, and a connecting crosspoint connecting the crosspoints of the first and second streaks to the intermediate frame member of the horizontal frame member. The two free ends that are slidably coupled and located at the left and right outer ends of each of the staggered members, a free end that intersects the upper horizontal frame material and the other free end that intersects the lower horizontal frame material, A frame for a bulletin board is formed by being pivotally fixed to a side end portion of each horizontal frame member, the horizontal frame members are separated from each other, and are fixedly fixed to a side end portion of the horizontal frame member. The remaining two free ends of the non-stitching material are When the crossing is performed with the side end of the frame member, the side end of the horizontal frame member and the free end of the stiffener are joined, and then the bulletin board is attached, while the bulletin board is removed and the side end of the horizontal frame member is removed. It is also possible to fold the horizontal frame members so that they are close to each other by uncoupling the free ends of the streaks. In other words, the frame of the present invention can be formed even if there are a plurality of pairs of different materials.

In the present invention, a frame for a bulletin board such as an election poster is provided with at least three parallel and equal-length horizontal frame members, and at least two different struts arranged to cross each frame member at an appropriate inclination angle, The crossing points of the different material and the horizontal frame material are selected and combined with the horizontal frame material to be pivotally fixed and slidably coupled, and the horizontal frame materials are separated from each other. It is configured to be able to form a mounted state of the expanded bulletin board and a removed state of the bulletin board that is folded by bringing the horizontal frame members close to each other, so that it can be folded compactly when not in use, so it can be stored and stored. The space efficiency is very good.
In use, the horizontal frame members constituting the frame are opened so as to be separated from each other, and the bulletin board can be attached in this state. Therefore, the bulletin board is simply a flat (flat) rectangular plate that can be attached to the frame. The body is sufficient, that is, there is an advantage that an extra structure for mounting on the bulletin board itself is unnecessary.
Furthermore, if the frame material is made of light metal such as aluminum, it is easy to carry and can be reduced in weight, so it is convenient not only for storage and transportation but also for assembly, installation and removal folding.

Next, an embodiment of the bulletin board frame of the present invention (hereinafter simply referred to as “the frame of the present invention”) will be described with reference to the drawings.
1 is a front view of the frame of the present invention in an assembled state, FIGS. 2 to 4 are front views showing a state of disassembling the frame of the present invention in the assembled state in FIG. 1, and FIG. FIG. 6 is a front view of the present invention frame with legs standing on the ground, FIG. 6 is a front view of the present invention frame shown in FIG. 5 with an election poster bulletin board attached as an example, and FIG. FIG. 8 is a cross-sectional view showing an example of the attachment structure of the frame members 1 and 3 and the washer body provided at the free ends of the streaks 6 and 7, and FIG. 9 is another example of the frame of the present invention. FIG. 10 is an exploded front view of the present invention frame shown in FIG.

  In FIG. 1, 1, 2 and 3 are horizontal frame members arranged parallel to each other, and the length is about 2 to 3 m as an example. The horizontal frame members 1 to 3 are formed of an aluminum material having a substantially U-shaped cross section. The lateral frame members 1 to 3 made of an aluminum material having a substantially U-shaped cross section are used with the side where the standing wall is opened as the back surface.

  The horizontal frame members 1 to 3 having the arrangement shown in FIGS. 1 and 2 are arranged in a lower position in a state where the frames 1 to 3 are separated from each other (a state where the frame is opened or a state in use). The lower end portions 4b, 5b are positioned at the left and right outer ends of the horizontal frame member 3, and the first streaks 4, 5 are positioned at the upper end portions 4a, 5a intersecting at one point on the upper horizontal frame 1. First stiffeners 6 and 7 having upper end portions 6a and 7a positioned at the left and right end portions of the upper frame member 1 and lower end portions 6b and 7b intersecting at one point on the lower horizontal frame member 3 respectively. Is placed.

  In the above-mentioned two pairs of different braiding members 4, 5 and 6, 7, one end (upper end in the figure) portions 4a and 5a of the first bracing member 4, 5 having a substantially chevron shape are pivotally coupled at the intersection thereof, and The upper horizontal frame member 1 is slidably supported by a roller (see FIG. 7) coaxial with the pivot shaft in the groove on the back surface.

  On the other hand, the other end (lower end in the figure) portions 6b and 7b of the struts 6 and 7 having a substantially valley shape are pivotally coupled at the intersections, and pivotally coupled to the groove on the back surface of the lower horizontal frame member 3. It is slidably supported by a roller coaxial with the shaft (see FIG. 7).

  On the other hand, the intersecting point 8 of the stiffeners 4 and 6 and the intersecting point 9 of the stiffeners 5 and 7 are pivotally connected to each other by crossing the staggered stiffeners. It is slidably supported in a groove on the back surface of the frame material 2 (see FIG. 7).

  Then, one end (upper end in the figure) portion 6a of the staggered material 6 and the other end (lower end in the figure) 5b of the staggered material 5 parallel to the staggered material 6 are respectively one end of the upper horizontal frame material 1. (The right end in the figure) and the other end of the lower horizontal frame member 3 (the left end in the figure) are pivotally fixed (see FIG. 8).

  On the other hand, the other end (lower end of the figure) 4b of the streak 4 and the one end (upper end of the figure) 7a of the staggered material 7 are the grooves on the back of the lower horizontal frame material 3 and the upper horizontal frame material 1, respectively. 11 and 11 are provided.

  As shown in FIG. 7, the rollers 8a and 9a are mounted on the groove wall of the intermediate horizontal frame member 2 by a multi-wheel roller R so as to be able to roll. Are supported by pins P while being supported.

  On the other hand, the rollers 10 and 11 provided at the free ends of the staggered members 4 and 7 are disk-shaped, which are accommodated in a substantially U-shaped groove in the side cross section of the horizontal frame members 1 to 3, as illustrated in FIG. A washer body W, a pivot shaft S to each of the different members 4 or 7 and a lock nut N are provided. When the nut N is loosened, the washer body W can roll or slide in the groove. When the nut N is tightened on the shaft S, the whole is fixed to the grooves of the horizontal frame members 1 to 3 and cannot slide (roll).

  The frame of the present invention having the above-described configuration is configured by placing the rollers 10 and 11 provided at the free ends 4b and 7a of the same material 7 as the different materials 4 into the grooves at the ends of the upper and lower horizontal frame materials 1 and 3, respectively. When the roller 10 and the roller 11 are fixed, the unfolded state (displayable state) shown in FIG. 2 is obtained. At this time, when the rollers provided at the intersections (4a, 5a) above the rollers 8a, 9a, the streaks 4, 5, and the intersections (6b, 7b) below the streaks 6, 7, respectively, are fixed in FIG. The illustrated expanded state can be assembled more firmly.

  In the frame of the present invention, the vertical frame members 12 and 13 are attached to the left and right ends of the developed horizontal frame members 1 to 3, so that the outer periphery is vertically aligned with the horizontal frame members 1 and 3 as shown in FIG. It is formed as an example of a bulletin board frame that is surrounded by the frame members 12 and 13 and that has an intermediate horizontal frame member 2 and two sets of streaks 4, 5, and 6, 7 inside. The vertical frame members 12 and 13 are attached to the side ends of the horizontal frame members 1 to 3 with screws or the like and are detachable.

  In the above-described frame of the present invention, left and right intermediate portions of the upper and lower horizontal frame members 1 and 3 are provided with mounting brackets 14L and 14R for left and right legs 16 and 17 described later and 15L and 15R, respectively. Yes. The mounting positions and the number of brackets 14L to 15R are not limited to the illustrated example. In addition, the legs 16 and 17 in the illustrated example have struts 18L and 18R embedded in the ground and left and right clamps 20, 21, and 22 on the struts 18L and 18R, and left and right clamps on the auxiliary struts 19L and 19R. 22 is installed upright (see FIGS. 5 and 6, FIG. 5 is a rear view of the standing inventive frame, and FIG. 6 is a front view of the standing inventive frame. It is a figure.)

  As shown in FIG. 6, the front surface of the frame of the present invention is preferably made of a wood-based water-resistant plywood, a paper-based water-resistant plywood, a plastic-based plate, a metal plate, etc., which are substantially the same size as the frame, and preferably has good weather resistance. A display panel (also referred to as a bulletin board) 23 is formed on the front side of the upper and lower horizontal frame members 1 and 3 and the front side of the vertical frames 12 and 13, and the panel 23 having a substantially L-shaped cross section. It is attached to a mounting portion (not shown in the figure) to be held (see FIG. 6).

  The frame of the present invention installed on a street or the like with an election poster or the like pasted on the bulletin board 23 as described above is removed when the election is over. The removal is performed in the reverse process of the assembly, standing up, and mounting of the bulletin board 23 described above.

That is, first, the bulletin board 25 is removed from the inventive device frame in the state of FIG. 6, and the inventive device attached to the legs 16 and 17 in the brackets 14L to 15R is removed.
Next, the vertical frames 12 and 13 are removed by unscrewing from the side ends of the horizontal frame members 1 to 3 so that the upper end of the stiffener 7 connected to the left end of the horizontal frame member 1 is free and the horizontal frame member is removed. The lower end of the streak 4 connected to the right end of 3 is made free.

  When the upper and lower horizontal frame members 1, 3 are operated so as to be close to each other from the above state, the two frame members 1, 3 are close to the intermediate horizontal frame member 2 as shown in FIG. The different streaks 4 and 5 and 6 and 7 are in a folded state in which the rollers are slid in the grooves of the horizontal frame members 1 to 3 and compressed in the vertical direction as shown in FIG.

  If the vertical frame members 12 and 13 are attached in parallel to the frame folded in the state of FIG. 4 and the whole is bound with a wire or a rubber band, it can be stored in a warehouse or the like until the next use opportunity.

  The legs 16, 17 and the above-mentioned auxiliary legs 18L, 19R of the legs 16, 17 and the clamps 20-21 are pipe materials and clamps that are also used for temporary scaffolds, etc. Are handled.

  The above description regarding an example of the frame of the present invention based on FIGS. 1 to 8 shows that two pairs of different streaks 4, 5, 6, and 7 are roughly mountain-shaped and substantially parallel to the parallel lateral frame members 1 to 3. An example of the present invention frame is a valley-shaped and mainly arranged symmetrically with respect to the upper and lower sides (intermediate horizontal frame member 2).

  In the present invention, as illustrated in FIG. 9 and FIG. 10, even if the configuration is such that a pair of different members 41 and 51 are arranged in a crossing posture with respect to the three horizontal frame materials 1 to 3. The effect equivalent to an example of the present invention frame can be obtained. In addition, since the frame of the example of FIGS. 9 and 10 uses only two streaks, there are many advantages such as weight reduction of the entire frame of the present invention and material cost reduction. 9 and 10, the same reference numerals as those in FIGS. 1 to 8 indicate the same member or the same part.

  9 and 10, the two different materials 41 and 51 are arranged in a substantially X shape with respect to the developed horizontal frame materials 1 to 3, and an intersection 45 of the two different materials 41 and 51 is placed in the middle. It is pivotally fixed in the middle of the horizontal frame member 2, and the upper and lower free ends 41a, 41b and 51a, 51b of the two muscle members 41, 51 are respectively connected to the corresponding horizontal frame members 1, 3, It is slidably and fixedly coupled by the coupling form of FIG. 7 or FIG. In addition, the position-fixed connection to the horizontal frame material of each free end in each staggered material and the connection structure in the slidable connection are not limited to those illustrated in FIGS. 7 and 8 and perform the same function. Any other structure may be used.

  The bulletin board frame of the present invention is as described above, and includes at least three parallel and same-length horizontal frame members, and at least two different streaks that are arranged to cross each frame member at an appropriate inclination angle, Each crossing point of the different frame material and the horizontal frame material is selected and combined with the horizontal frame material by being pivotally fixed and fixedly slidably coupled, and the horizontal frame materials are separated from each other. Since the bulletin board frame is configured so that the bulletin board can be mounted in a state of being spread and the horizontal frame members are folded close to each other so that the bulletin board can be removed, the horizontal frame constituting the frame is in use. The materials can be opened apart from each other and the bulletin board can be attached in that state. As a result, the bulletin board need only be a flat (flat) rectangular plate that can be attached to the frame, and if the frame material is made of light metal such as aluminum, it can be assembled and folded, so it can be carried. In addition to being easy, the weight can be reduced, so it is convenient not only for storage and transportation, but also for folding during assembly and installation.

The front view of the assembly state of this invention frame. The front view which showed the state which decomposes | disassembles this invention frame of the assembly state of FIG. 1 in order of a process. The front view which showed the state which decomposes | disassembles this invention frame of the assembly state of FIG. 1 in order of a process. The front view which showed the state which decomposes | disassembles this invention frame of the assembly state of FIG. 1 in order of a process. The front view of the state which attached the leg to this invention frame of FIG. 1, and stood on the ground. The front view of the state which attached the bulletin board for election posters as an example to the frame of this invention of FIG. Sectional drawing which shows the example of attachment structure of a frame material and a roller. Sectional drawing which shows the example of attachment structure of the frame materials 1 and 3 provided in the free end of the staggered materials 6 and 7, and a washer. The front view of the assembly state of another example of this invention frame. The front view in the middle of disassembling and folding.

Explanation of symbols

1 to 3 Horizontal frame material 4,5 First stiffening material 6,7 Second stiffening material 8 Intersection of stiffening materials 4,6 9 Intersection of stiffening materials 5,7
10 and 11 Rollers 6 and 7 at the ends of the streaks 6 and 7
12, 13 vertical frame

Claims (4)

  Comprising at least three parallel frame members having the same length, and at least two different struts arranged to cross each frame member at an appropriate inclination angle, and each intersection of the staggered material and the horizontal frame member. The horizontal frame member is combined to be fixedly mounted in a fixed position and slidably coupled, and the mounting state of the bulletin board in which the horizontal frame members are spread apart from each other, A foldable bulletin board frame characterized in that a detachable state of a bulletin board which is folded by bringing the frame materials close to each other can be formed.   The folding bulletin board frame according to claim 1, wherein the staggered material is provided in a symmetric posture with respect to an intermediate horizontal frame material.   3. The foldable bulletin board according to claim 1 or 2, wherein, when the horizontal frame member is in a separated posture to which the bulletin board can be attached, a vertical frame member for connecting each horizontal frame member is detachably provided on both side ends of the horizontal frame member. For frames.   A cross-sectionally substantially U-shaped cross-section of the lateral frame material is provided with a reinforcing material in the groove on the back surface, or the reinforcing material and the leg mounting part, and a bulletin board is provided on the front surface of the horizontal frame material or the front surface of the horizontal frame material and the vertical frame material. The foldable bulletin board frame according to any one of claims 1 to 3, wherein an attachment portion for holding is formed.

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