JP2006043222A - Placing and holding table and display arrangement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the weight of a shaft of a module for constructing a flower altar, and to constitute an placing and holding table for mounting the module to be light-weight, easy to move and foldable. <P>SOLUTION: The figure shows the placing and holding table. The whole of the placing and holding table has a frame structure and is made light-weight, and is easy to move with casters. An upper frame structure composed of the frames 401 to 405, 407, etc. can be detached from vertical frame structures on both sides. By detaching arms 420 and 421 in the detached state, the vertical frame structures on both sides can be laid horizontally. A large number of plastic shafts erected at the module has a structure formed with a large number of recess parts, so that curving of the shaft due to injection molding is suppressed, and the weight of the module is reduced. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a presentation apparatus for presenting a large amount of presentation objects in a desired spatial layout, and a mounting table suitable for use in such a presentation apparatus.

The applicant of the present application has already applied for an invention related to a presentation device for presenting a large amount of presentations in a desired spatial layout.
Such a presentation device is suitable for use in constructing a flower altar or the like at, for example, a funeral hall, a wedding hall, or other various ceremonies. The structure is characterized by the fact that it is composed of a large number of modules, which greatly simplifies the construction work in the venue even if the desired spatial layout is complex and large. In addition, when a flower is presented as a large amount of presentation, the cost of the flower can be greatly reduced.

Next, a conventional example of the presenting device will be briefly described.
In such a conventional example, a large number of modules shown in FIG. 14 or FIG. 15 are used. In these drawings, the actual modules are simplified.
As shown in the figure, the module shown in FIG. 14 forms a frame structure configured in a trapezoidal shape, and the upper surface portion of the frame structure is inclined so that the rear end is set higher than the front end. The five frames 305, 306, 313, 308, and 311 are horizontally hung on the slope portion. In the present application, a frame structure portion other than these five horizontal frames is defined as a “base portion”.

Then, according to the desired spatial layout to be presented, a positioning device 309 is installed at a desired horizontal position on a desired horizontal frame (313), and the shaft 312 is erected at a desired height in the positioning device 309. The holding device 310 is attached to the upper part of the shaft. The holding device 310 includes six holding units, and a desired presentation can be presented in a desired spatial layout by presenting a desired presentation in the desired holding unit.

Details of the positioning device, the shaft and the holding device are shown in an enlarged manner in FIG. In this figure, the shaft 312 is made of solid plastic, and a number of click holes 316 are formed on the side surface. The positioning device made up of components such as 315, 321, 322, 311 and 314 is also made of a lot of plastic, and the click engagement mechanism in the positioning device keeps the desired height of the shaft 312. Engage a predetermined click hole.

This figure shows an example in which a flower is presented as an object to be presented. A plastic vase 323 is loaded into a desired one of the six holding parts of the holding device, and the flower is placed in the vase. Present flowers by inserting them. The entire holding device is also made of a lot of plastic.

Each of the frames constituting the module is made of light metal, and is constituted by a pipe having the same cross-sectional structure as the horizontal frame 313 in FIG.
In order to make the structure easy to understand, the module shown in FIG. 14 shows a state in which only one positioning device, shaft, and holding device are set. For example, when a flower altar is configured by a presentation device, The module presents a large amount of flowers densely. For this reason, a large number of positioning devices are installed in each horizontal frame described above, a large number of holding devices are densely arranged, and flowers are provided in all the holding portions of each holding device.

Further, the module shown in FIG. 15 is an example in which the upper surface portion is configured in a step shape, and the horizontal frame 4 provided on the upper surface portion is suspended in the front-rear direction, unlike the module of FIG. In addition, the positioning device 5, the shaft 3, and the holding device 2 in this figure can be the same as those shown in FIG.
For reference, FIG. 17 shows an example in which a flower altar is configured by the module of FIG. This figure shows a cross-sectional view of the flower altar as viewed from the side. The module 1 is mounted on a mounting table 999 arranged in a staircase shape to constitute the flower altar.

In the presentation device described above, the basic structure of the module is configured by a light metal pipe frame, and the positioning device, the shaft, and the holding device are mainly configured by plastic, thereby reducing the weight of the entire module. Accordingly, the module can be easily transported and moved.
JP 2002-19395 A

  In the above-described conventional presentation device, the weight of the module is reduced to facilitate the transportation of the module and the construction work of the altar, etc. In the case of performing a large-scale presentation, the number of modules and mounting tables However, it will become very large correspondingly, and it will take a lot of labor and time for construction work in the venue. Also, it takes a lot of labor and time to transport them from the factory to the venue.

Furthermore, in order to transport a large number of modules and mounting tables to the venue in this way, a large-sized or a large number of transport vehicles with high loading capacity are required, and the transport cost is greatly increased.
In addition, the shaft standing on the module is made of plastic as described above. However, since the total length in the axial direction has a considerable length, there is a problem that the shaft is curved during injection molding at the time of manufacture. there were.

In view of this point, the present application provides a mounting table that can be moved very easily and can reduce the loading amount during transportation by a vehicle, and further, a straight shaft that does not bend during injection molding. Provided presentation device is provided.

  The invention according to claim 1 of the present invention includes a lower frame structure provided with casters, a left side vertical frame structure and a right side vertical structure in which respective lower ends are pivotally supported at left and right ends of the lower frame structure. A frame structure, and upper and lower frame structures in which left and right end portions are detachably connected to the upper ends of the left side vertical frame structure and the right side vertical frame structure, respectively, and an object can be placed thereon. In particular, a first arm hung between the lower frame structure and the left side vertical frame structure, and a hung between the lower frame structure and the right side vertical frame structure. The left side vertical frame structure and the right side vertical frame structure are held perpendicular to the lower frame structure by the second arm.

Here, further, a first release means for releasing the connection between the upper frame structure and the left side vertical frame structure, and the connection for releasing the connection between the upper frame structure and the right side vertical frame structure. It is desirable to provide a second release means.
Further, it is more practical if an engagement structure for locking the placed object is provided on the upper side surface of the upper frame structure.

  The invention according to claim 4 of the present application is a presentation device for presenting a large number of presentation objects in a desired arrangement pattern, and should be presented in the arrangement pattern of each section when the desired arrangement pattern is divided into a plurality of sections. Each of the presentations has a structure that is presented by one module, and each module has a positioning device that is inserted into a predetermined position of a horizontal frame that is attached to the upper end of the base, and a perpendicular to the positioning device. The shaft includes a plastic shaft inserted through and a holding device attached to the upper end of the shaft. The shaft further includes a click hole that allows the height adjustment and holding of the shaft in the positioning device, and a plurality of shafts. The concave portion is provided.

Here, it is desirable that the click holes are provided on the left and right side surfaces of the shaft, and the numbers corresponding to the click holes are provided on the front and back surfaces of the shaft.
Further, the click hole is configured so that the upper half has a substantially semicircular shape and the lower half has a substantially semicircular shape, and the engagement piece is formed on the lower surface of the lowermost frame constituting the base. It is good also as a structure provided with.

The work of transporting the presentation device and the mounting table from the factory to the venue, and the construction work for performing the presentation at the venue can be performed more easily and quickly than before.
The loading capacity when transporting the mounting table from the factory to the venue is reduced.
The shaft does not bend during injection molding.
The operation to adjust the height of the module shaft becomes easy.

  Lower frame structure with casters, left side vertical frame structure and right side vertical frame structure whose lower ends are pivotally supported at the left and right ends of the lower frame structure, and portions near the left and right ends However, each of the left side vertical frame structure and the upper side frame structure detachably connected to the upper end of the right side vertical frame structure constitutes the frame structure of the mounting table, and the front end of the lower frame structure is horizontal. The arm hung between the frame and the left side vertical frame structure maintains the verticality of the left side vertical frame structure, and the horizontal frame and the right side vertical frame structure at the rear end of the lower frame structure The verticality of the right side vertical frame structure is maintained by the arm hung between the two.

  Further, a lever for releasing the connection between the upper frame structure and the left side vertical frame structure and a lever for releasing the connection between the upper frame structure and the right side vertical frame structure are provided. In addition, an engagement groove for locking the placed object is provided on the upper surface of each horizontal frame at the front end and the rear end of the upper frame structure.

  In the presentation device module with a large number of plastic shafts with holding devices attached at the top, click holes are provided on the left and right side surfaces of the shaft, and relief numbers corresponding to the click holes are formed on the front and back surfaces. In addition, a large number of recesses are formed in areas where the front and back relief numerals are not formed. A recess is also deeply formed at the top of the shaft.

  The click hole is configured such that the upper half has a substantially semicircular shape and the lower half has a substantially semicircular shape. Further, an engagement piece is provided on the lower surface of the lowermost frame of the module.

First, one embodiment of the mounting table according to the present invention will be described.
A perspective view of such an embodiment is shown in FIG. As shown in the figure, the mounting table includes a lower frame structure composed of 422 to 426, an upper frame structure composed of 401 to 405 and 407, vertical support frames 415 and 416, and a right side composed of horizontal frames 417 to 419. Vertical frame structure, vertical column frames 410 and 411, and a left side vertical frame structure composed of horizontal frames 412 to 414, and the like. The upper frame structure is composed of a grooved square frame as will be described later, and each vertical frame structure and lower frame structure is composed of a pipe frame.

  In the present embodiment, the entire mounting base is made of a lightweight frame material in this manner, thereby reducing the weight of the mounting table as much as possible. The mounting table is configured so that three modules can be mounted on the upper frame structure. Since the four mounting wheels are provided at the lower part of the lower frame structure, You can move around the venue very easily even with the module installed. In this figure, 420 and 421 are movable arms for holding the vertical frame structure vertically, and 408 and 409 are handles used to move the mounting table.

For reference, FIG. 2 shows a state in which three modules A, B, and C are mounted on this mounting table. In this figure, the three installed modules are displayed in a simplified manner with two-dot chain lines.
For example, when a flower altar is constructed using the mounting table and the module, these mounting tables are arranged in a staircase pattern using various types of mounting tables having different heights.

  A specific example when the flower altar is constructed is shown in FIG. This figure is a side view of the flower altar. The height of each of the three types of mounting tables 400, 500, and 600 forms a single slope with the upper surface portion of the module mounted on each of them. It is set to be. Thereby, it is possible to easily express the envelope surface formed by the upper end portion of the flower inserted into the vase (the dashed line curve in this figure) in a smooth curved surface. In this figure, only the flowers (443 and 633) provided in the rearmost holding device and the frontmost holding device are shown for the flowers constituting the flower altar, and the other flowers are omitted. ing.

  Here, as shown in (a) to (e) of FIG. 4, as the vase to be loaded into the holding unit of the module holding device, if a plurality of types of vases having different heights are prepared, the height at which the flower is presented is obtained. Since it can be easily changed slightly, more precise expression is possible. In addition, 434 in FIG. 3 represents the floor.

Grooves (431 and 432 in FIG. 7 to be described later) are formed on the upper surfaces of the horizontal frames 401 and 402 of the upper frame structure of the mounting table described above. On the other hand, the module used in the presenting device of the present invention As shown in FIG. 6, the engagement pieces 331 to 334 are fixed to the front and rear horizontal frames of the lower frame structure. When the module is mounted on the mounting table, the module engagement pieces 331 to 334 are engaged with the grooves of the horizontal frames 401 and 402 so that a stable mounting state can be obtained.
The operation for this engagement will be described with reference to FIG. 6 (details of the engagement structure will be described later with reference to FIG. 8).

  FIG. 6 shows an operation of engaging the engagement pieces 334 and 331 attached to the module with the grooves 431 and 432 (see 431 and 432 in FIG. 7) on the upper side surfaces of the horizontal frames 401 and 402 of the mounting table. It is the figure which looked at from diagonally downward. In this figure, the module is moved in the direction of the one-dot chain line arrow so that the engagement pieces 334 and 331 are inserted into the grooves, respectively, and the engagement pieces 333 and 332 are also inserted into the grooves by sliding in the grooves. Then, the module is mounted on the mounting table.

  In this embodiment, by adopting the structure as described above, it is easy to move with three modules mounted on one mounting table, so that the moving efficiency is greatly improved, such as altars in the venue. The labor required for construction work is significantly reduced. It should be noted that the mounting table may be configured to mount two modules or four modules by changing the length of the horizontal frames 402 and 401 of the mounting table.

  The mounting table according to the present invention is configured so that it can be easily disassembled / folded / assembled. Therefore, when the mounting table is transported by a vehicle or stored in a factory, the mounting table is folded. The storage volume can be significantly reduced. Next, the disassembly / folding operation will be described.

When disassembling the mounting table, the upper frame structure is removed from the vertical support frames on both sides. The operation for removing the upper frame structure from the vertical support frames 416 and 415 is shown in FIG.
In a state where the mounting table is assembled, the insertion pins 454 and 455 attached to the lower surfaces of the horizontal frames 401 and 402 at the top of the mounting table are inserted into the insertion holes 456 and 457 at the upper part of the vertical column frames 415 and 416, respectively. Each is inserted and locked in engagement with these vertical strut frames.

  Here, when the levers 452 and 453 on the upper part of the vertical column frame are pulled in the direction of → in the figure, respectively, the engagement lock state is released and the horizontal frames 401 and 402 can be easily detached from the vertical column frame. . In the figure, reference numerals 474 and 475 denote annular engaging grooves formed in the vicinity of the distal end portion of the insertion pin.

The engagement mechanism between the horizontal frame and the vertical support frame will be described in detail with reference to FIG.
In FIG. 6, the structure shown by a solid line is the relationship when the mounting table is cut by a plane including the central axis of the vertical column frame 416 and the central axis of the lever 453 at the top of the vertical column frame in FIG. A sectional view of the vicinity of the joint portion is shown.

  In this figure, a substantially T-shaped terminal member 451 composed of a vertical main portion and a horizontal convex portion is attached to the upper end of a vertical column frame by a fixing pin 457. An engaging pin 461 is fixed to the lever 453 described above. The engaging pin is inserted into an insertion hole formed in the direction of the central axis of the convex portion, and the tip of the engaging pin is always urged toward the central portion of the main portion by a spring 433. In this figure, reference numeral 460 denotes a lid attached to the end of the above-mentioned convex portion by a bolt 462.

  On the other hand, a deformation nut 458 is fitted inside the groove on the lower side portion of the horizontal frame 407 of the mounting table, and the bolt 456 is tightened to the deformation nut 458 via the insertion pin 455 so that the insertion pin 455 is attached to the horizontal frame. It is fixed to 407. When the insertion pin 455 is inserted deeply into the insertion hole of the termination member as shown in the figure, the tip end portion of the engagement pin 461 is engaged with the engagement groove 475 of the insertion pin 455 and locked.

When the lever 453 is pulled in the direction of → in the figure against the elastic force of the spring 433, the engagement state between the distal end portion of the engagement pin 461 and the engagement groove 475 of the insertion pin 455 is released, and the insertion is performed. The pin can be pulled out from the insertion hole.
Note that the two-dot chain line shown at the top of this figure is on the cross section of the module horizontal frame 338 (see horizontal frame 338 in FIG. 6) when the module is mounted on the mounting table, and on the lower surface of this horizontal frame. The mounting structure of the fixed engagement piece 333 is shown. The bolt 351 is passed through the horizontal frame 338 through the engagement piece 333 and the washer 350, whereby the engagement piece 333 is attached to the horizontal frame 338. It is fixed.

In the present embodiment, as described above, after the upper frame structure of the mounting table is removed from the vertical support frame, the vertical frame structures on both sides of the mounting table can be further folded. Next, this structure will be described.
FIG. 9 shows an operation when the right-side vertical frame structure is folded. In this figure, joints 441 and 442 for connecting the horizontal frames and the vertical support frames 416 and 415 are fixed to the ends of the horizontal frames 422 and 423 of the lower frame structure of the mounting table. On the other hand, the vertical support frames 416 and 415 are pivotally supported by these joints.

Then, when assembling the mounting table, the vertical frame structure is held vertically by holding the vertical frame structure upright and hooking the hole of the end of the movable arm 420 on the retaining pin 443 of the vertical column frame 415 ( (See FIG. 1). When the vertical frame structure is folded, as shown in the figure, the hole of the movable arm is removed from the retaining pin 443 and the notch of the movable arm is hung on the retaining pin 444 of the horizontal frame 422 so that the vertical frame structure is positioned in the horizontal position. Defeat until. The left side vertical frame structure can be folded in the same manner.
Thus, in this embodiment, the mounting table can be disassembled / folded and assembled very easily.

  As the installation position of the movable arm on the mounting table, the movable arm is provided between the horizontal frame 423 and the vertical support frame 416 and between the horizontal frame 422 and the vertical support frame 410 instead of the configuration shown in FIG. May be. Alternatively, in addition to the configuration shown in FIG. 1, the vertical frame structure can be more stably held vertically by providing two movable arms as described above.

  In the mounting table of FIG. 1, one end of the movable arm is pivotally supported by the horizontal frame of the lower frame structure. Instead, the vertical support frame or the horizontal frame (for example, the horizontal frame 419) of the vertical frame structure is used. And 414 etc.), and a structure in which the hole at the other end of the movable arm is hung on the retaining pin of the horizontal frame (422 and 423) of the lower frame structure may be employed.

  In the embodiment described above, it is possible to remove or attach the upper frame structure of the mounting table from the vertical support frame while the module is mounted on the upper frame structure. When the altar is transported, the vertical frame structure of the mounting table is transported in the folded state as described above, and the module can be transported while being mounted on the upper frame structure of the mounting table. By adopting such a transport method, it is possible to save the trouble of mounting the module on the upper frame structure of the mounting table when constructing a flower altar or the like in the venue.

Next, a shaft of a presentation device that can suppress bending during injection molding will be described.
A front view of the shaft is shown in FIG. 10 (a), and a right side view is shown in FIG. 10 (b). Note that the rear view of the shaft in this embodiment is the same as the front view, and the left side view is the same as the right side view, so these figures are omitted. For reference, a perspective view of the vicinity of the upper end of the shaft as viewed obliquely from above is shown in FIG. FIG. 12 is a cross-sectional view of each of the AA to GG cross sections in FIG.

  As shown in FIG. 10, in this embodiment, 25 click holes are provided on the left and right side surfaces of the shaft. Here, while the click hole of the conventional shaft is a perfect circle, each click hole of the shaft in this embodiment has a substantially circular shape similar to that of the conventional shaft in the upper half of each click hole, The lower half has a shape obtained by cutting a substantially oval shape at the position of the short axis (in the present application, this shape is defined as “a substantially semi-oval shape”).

In addition, relief numbers from 1 to 25 are formed on the front and back surfaces of the shaft in this embodiment corresponding to each click hole, and this indicates the height when the height of the shaft is adjusted. Acts as an indicator.
Furthermore, in the shaft of the present embodiment, a large number of recesses are provided everywhere as long as the minimum required strength can be secured to the shaft, thereby making the shaft as light as possible.

  Each of these recesses will be described in detail. In the vicinity of the top of the shaft, as shown in the DD cross-sectional views of FIGS. 10, 11 and 12, a circular shape having a slight taper downward from the top. The holes are deeply formed. Further, a rectangular hole is formed deeply from the left and right side surfaces of the shaft, as shown in the DD sectional view and the EE sectional view of FIGS. 10, 11, and 12, slightly below the circular hole. ing.

In addition, the left and right sides of the relief numbers engraved on the front and back of the shaft are vertically long as shown in the BB cross-sectional view, the GG cross-sectional view, and the CC cross-sectional view in FIGS. 10 and 12. The substantially rectangular hole is formed deeply.
As described above, the conventional shaft shown in FIG. 16 is formed by forming as many recesses as possible in the shaft within a range in which the strength of the shaft for supporting the holding device on which the presentation object is mounted is secured. Compared to this, a shaft that is about 30% lighter is realized.

By reducing the weight in this way, it is possible to prevent the shaft from being bent by its own weight during injection molding.
The position and shape of the recess formed in the shaft is not limited to the configuration adopted in the above-described embodiments, and in short, the shaft can be reduced in weight as much as possible within the range where the shaft has practically sufficient strength. It should be set as follows.

  The shaft itself has a considerable length, and usually several tens of shafts are erected in one module, which greatly contributes to weight reduction of the entire module. Thereby, in particular, the labor required for the work for attaching or removing the upper frame structure of the mounting table on which the plurality of modules are mounted to the vertical column frame of the mounting table is greatly reduced.

In addition, the shape of the click hole of the shaft in this embodiment is a special shape as described above, and therefore, as shown in the enlarged view of the FF cross section of FIG. The side surface inclination angle β is smaller than the conventional inclination angle α.
As a result, when resetting the height of the shaft erected on the module positioning device to a higher position, the resistance when the click engagement is disengaged in the click engagement mechanism is smaller than the conventional setting. Operation is simpler than conventional shafts. In addition, the present embodiment has an advantage that the ability to maintain the height of the shaft by click engagement in the engagement mechanism is higher than that of the conventional shaft by the weight of the shaft.

It is a perspective view of the mounting base by this invention. (Example 1) It is the figure which mounted the module on the mounting base. It is a figure which shows one example which comprised the flower altar using the mounting base. It is a figure which shows the example of the vase loaded in the holding device of a module. 1 is an example of a module according to the present invention. (Example 2) It is a figure explaining the method to mount a module on a mounting base. It is explanatory drawing of operation which disassembles a mounting base. It is sectional drawing of the connection part of the upper frame structure of a mounting base, and a vertical frame structure. It is a figure explaining operation which folds the vertical frame structure of a mounting base. It is the front view and side view of a shaft which are erected on a module according to the present invention. It is a perspective view of the shaft. It is each sectional drawing of the shaft. It is an enlarged view of the FF cross section of the shaft. It is an example of the module used for the conventional presentation apparatus. It is another example of the module. It is an enlarged view of the positioning device, shaft, and holding device of the module. It is a side view of the example which comprised the flower altar with the conventional presentation apparatus.

Explanation of symbols

1 Module 2 Holding device 3, 312 Shaft 4, 313 Horizontal frame 323 Vase 400, 500, 600, 999 Mounting table 410, 411, 415, 416 Vertical support frame 420, 421 Arm 427-430 Caster 452, 453 Lever 454, 455 Insertion pin 457 Engagement groove 461 Engagement pin

Claims (7)

(1) a lower frame structure provided with casters;
(2) a left side vertical frame structure having a lower end pivotally supported at the left end of the lower frame structure;
(3) a right side vertical frame structure having a lower end pivotally supported at the right end of the lower frame structure;
(4) An upper frame structure in which left and right both ends are detachably coupled to the upper ends of the left side vertical frame structure and the right side vertical frame structure, respectively, and on which an object can be placed;
(5) a first arm hung between the lower frame structure and the left side vertical frame structure;
(6) a second arm hung between the lower frame structure and the right side vertical frame structure;
With
And by the first and second arms, the left side vertical frame structure and the right side vertical frame structure are respectively held perpendicular to the lower frame structure,
Further, when the upper frame structure is removed from the respective upper ends of the left side vertical frame structure and the right side vertical frame structure and the first or second arm is removed, the arm is removed. A mounting table, wherein the vertical frame structure can be laid down to the position of the lower frame structure. 2. The mounting table according to claim 1, wherein a first release means for releasing connection between the upper frame structure and the left side vertical frame structure, the upper frame structure and the right side vertical frame structure. And a second release means for releasing the connection with the body. The mounting table according to claim 1, wherein the upper frame structure includes an engaging structure for locking the mounted object on an upper side surface thereof. A presentation device for presenting a large number of presentation objects in a desired arrangement pattern,
The presenting device has a structure in which presentations to be presented in the arrangement pattern of each section when the desired arrangement pattern is divided into a plurality of sections are each presented in one module, and each module Is
(1) a base part composed of a frame;
(2) Based on an arrangement pattern to be presented by each section, a predetermined number of horizontal frames attached to a predetermined position at the upper end of the base portion;
(3) Based on an arrangement pattern to be presented by each section, a predetermined number of positioning devices inserted into predetermined positions of the horizontal frame;
(4) a plastic shaft that is vertically inserted into the predetermined number of positioning devices and supported at a height based on an arrangement pattern to be presented by each section;
(5) A holding device that is attached to the upper end of the shaft and holds the presentation such that the presentation is presented in an arrangement pattern that each section should present;
Each with
In addition, the shaft includes a click hole that enables adjustment and holding of the height of the shaft in the positioning device on a side surface thereof, and further includes a large number of concave portions, and is lightweight due to the provision of the large number of concave portions. The present invention is characterized in that the bending of the shaft during injection molding is suppressed. 5. The presentation device according to claim 4, wherein the click holes are provided on the left and right side surfaces of the shaft, and numbers corresponding to the click holes are provided on a front surface and a back surface of the shaft. Presentation device. 6. The presentation device according to claim 4 or 5, wherein the click hole has an approximately semicircular shape in the upper half and a substantially semicircular shape in the lower half. . 7. The presentation apparatus according to claim 4, wherein an engagement piece is provided on a lower surface of the base portion.

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