JP2022169501A - Acryl stand with pedestal - Google Patents

Abstract

To provide a structure of a pedestal which is fixed so as to be stably fit even when there exists a tolerance of the radial thickness in an acryl stand obtained by extrusion molding.SOLUTION: An acryl stand with a pedestal is obtained by extrusion molding and includes first and second transparent acrylic boards having a radial thickness d and a tolerance ±Δd. The first transparent acrylic board becomes a planar acryl stand by performing UV printing of a character image on one surface or both surfaces and cutting along the contour line set so as to surround the outer side of the character image. The second transparent acrylic board becomes the pedestal in which a groove part with which the acryl stand is engaged and can be attached substantially-vertically is formed on one surface thereof. The groove part is a slit which extends from the periphery of the pedestal to the inner side, has a length L necessary for fixing the acryl stand without shaking when the acryl stand is fixed to the pedestal, whose one end is opened and whose other end is closed. The root width of the slit is set to d-Δd, and the tip width is opened to be slightly wider than the root width.SELECTED DRAWING: Figure 3

Description

TECHNICAL FIELD The present invention relates to an acrylic stand with a pedestal, and more particularly, to an acrylic stand with a pedestal comprising a plate-like acrylic stand on which a character image is printed and a pedestal that engages the acrylic stand and attaches it substantially vertically.

In recent years, a plate-shaped acrylic stand made by UV-printing an image of an anime character that is broadcast on TV etc. on a transparent acrylic plate is used as a key holder, or it is engaged with a pedestal and used as a decorative ornament. products are widely marketed. Patent applications and utility model registration applications have also been filed for products partially incorporating character images.

In Patent Document 1, as shown in FIG. 5, a character toy 30 is composed of an upper body portion 32 and a lower body portion 33 made of a flat plate, and an L shape in which the upper body portion 32 stands vertically behind the horizontal lower body portion 33. The upper body part 32 and the lower body part 33 are joined in an L shape by fitting a pin 34 provided at the lower end of the upper body part 32 into a rectangular hole 35 provided in the lower body part 33 . there is

In Patent Document 2, as shown in FIG. 6, the character goods 40 are printed with a character design 42 on a plate-like printing material 43 which is pre-molded slightly outside the outline (contour) along the outline. An engaging piece 45 in the shape of a projecting piece for engaging with the support means 44 is provided in the central portion of the bottom surface of the printing medium 43 .
A rectangular engagement hole 46 into which an engagement piece 45 is engaged in a closely contacting state is formed in a substantially central portion of the support means 44 . By engaging the engagement piece 45 with the engagement hole 46 of the support means 44, at least a portion of the printing medium 43 can be supported.

In Patent Document 3, as shown in FIG. 7, a plurality of rectangular grooves 52, 55, 58 are provided on pedestals 51, 54, 57, and human figures 59, 60 are formed by UV-printing a human image on an acrylic plate. , 61 are engaged in selected positions of the grooves 52, 55, 58. As shown in FIG.

Utility Model Registration No. 3220227 Utility Model Registration No. 3232949 JP 2016-42947 A

An acrylic stand on which a character image is printed and a transparent acrylic plate serving as a pedestal on which the acrylic stand is engaged and attached are usually produced by extrusion molding of acrylic resin. Equipment usually consists of an extruder, a die (sizing die), a cooling device, a take-off device and a cutting device.

The material resin charged from the hopper is plasticized by the screw in the heating cylinder, extruded from the extrusion port (die), cooled by the cooling device, solidified into a sheet, molded, and cut to the desired size. . In extrusion molding, the shape is formed by the shape of the extrusion port (die), but pressure can be applied during the process of solidifying the resin, so even thick products can have shrinkage marks and dents ( "Sink marks") can be prevented from occurring.

Extrusion molding is suitable for continuously molding articles whose cross-sectional shape does not change by changing the shape and structure of the extrusion port (die).
However, due to variations in molding materials and molding conditions (holding pressure, injection speed, injection pressure, holding pressure time, etc.), the resin extruded from the die may not be uniform. The wall thickness d cannot be obtained as designed due to the lack of shrinkage and the effect of "warping" of the plate surface when the size is large, resulting in a tolerance of ±Δd.
Therefore, the thickness d of the plate-shaped acrylic stand is
d−Δd≦d≦d+Δd
It is manufactured with a tolerance within the range of

It is necessary to form a groove portion for engagement in the acrylic plate serving as a pedestal with which the plate-like acrylic stand is engaged. Conventionally, the shape of this groove is a rectangular groove (35, 46, 52, 55, 58) closed at both ends, as shown in Patent Documents 1 to 3. Since such rectangular grooves with both ends closed are usually formed by laser processing, the groove width can be designed and formed to be fairly accurately uniform d.

Then, when trying to engage an acrylic stand obtained by extrusion molding and having a thickness of d and a tolerance of ±Δd with an engaging hole of a base having a groove width of d, the engagement can be performed if the thickness is d+Δd. If the thickness is d - Δd, there will be a problem that it will wobble even if it can be engaged. If you try to set it, the amount of work will be added and the productivity will be hindered.

The present invention has been made in view of the above points, and is a pedestal that can be easily fixed so as to fit the pedestal even if there is a thickness tolerance of ±Δd in the plate-shaped acrylic stand obtained by extrusion molding. The purpose is to provide an acrylic stand with

The acrylic stand with a pedestal of the present invention is obtained by extrusion molding and is composed of first and second transparent acrylic plates having a thickness d and a tolerance of ±Δd. A character image is UV-printed on the second transparent acrylic plate, and cut along an outline set to surround the character image to form a plate-like acrylic stand. A pedestal formed with a groove that engages the stand and can be attached substantially vertically, the groove extends inward from the periphery of the pedestal, and wobbles when the acrylic stand is fixed to the pedestal. It is a slit with a length L necessary to fix it without a gap, one end is open and the other end is closed, the base width of the slit is set to d - Δd, and the tip width is slightly wider than the base width. It is characterized by opening.

The slit is formed by laser processing, the thickness d, the tolerance ±Δd, and the base width are 3 mm, ±0.1 mm, and 2.8 mm, respectively, and the base is rectangular or elliptical. It is characterized by
Further, in the acrylic stand with a pedestal of the present invention, the engagement between the acrylic stand and the pedestal is performed by inserting the acrylic stand from the one end of the slit and sliding it toward the other end. It is characterized by

In the present invention, the pedestal is provided with a groove that can be engaged with an acrylic stand and can be attached substantially vertically. By making a slit with one end open and the other end closed, and one end slightly wider than the groove width d-Δd, even if there is a tolerance of ±Δd in the thickness d of the acrylic stand, it is firmly fixed to the pedestal. can be made

1 is a configuration diagram of an acrylic stand with a pedestal according to an example of an embodiment of the present invention; FIG. The block diagram of the acrylic stand with a base which concerns on the other example of embodiment of this invention. An explanatory diagram of an experiment using an acrylic plate. Explanatory drawing which summarized the result of experiment. FIG. 10 is a view for explaining engagement between an acrylic stand and a pedestal described in Patent Literature 1; FIG. 10 is a diagram for explaining the engagement between the acrylic stand and the pedestal described in Patent Literature 2; FIG. 10 is a diagram for explaining engagement between an acrylic stand and a pedestal described in Patent Document 3;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a configuration diagram of an acrylic stand with a pedestal according to an example of an embodiment of the present invention.
(a) shows the state before a plate-shaped transparent acrylic plate stand _10-1 on which a character image _12-1 representing a baseball catcher is UV-printed is engaged with _a pedestal 14-1, and (b) shows the state after engagement. are shown respectively. Since the acrylic plate stand _10-1 and the pedestal 14-1 are produced by extruding _an acrylic resin, the thickness d has a tolerance of ±Δd as described above. The applicant usually manufactures the acrylic plate stand _10-1 and the pedestal _14-1 with the wall thickness d=3.0 mm, but the intersection Δd in that case falls within the range of ±0.1 mm.

The acrylic plate stand 101 according to the present invention has projecting piece-like engaging pieces 34 (see FIG. ₅ ) and engaging pieces 45 (see FIG. 6) for engaging with the base as shown in FIGS. _A part of the acrylic plate stand 10-1 can be used as _an engagement piece to engage with the pedestal 14-1. In the embodiment shown in FIG. ₁ , the catcher's foot portion is used as an engagement piece to engage with the pedestal 141, but the invention is not limited to this. Any portion of the plate stand 101 may be used as _an engagement piece for engagement.

The pedestal 14-1 is formed with _a groove _16-1 for engaging the acrylic plate stand _10-1 and attaching it substantially vertically. The shape of the groove portion _16-1 is _a slit extending inward from the periphery of the base 14-1, and has _a length necessary to fix the acrylic plate stand _10-1 to the base 14-1 without wobbling. It has a length L and _one end 181 is opened slightly wider than the groove width d-Δd.

Since such slits are formed by laser processing, the groove width (slit width) can be controlled quite accurately. In the case of the embodiment shown in FIG. ₁ , the shape of the pedestal 141 is a rectangle with _one side l1 of 45 mm. In this case, if the slit width is 2.8 mm, it is possible to set the length L1 required for fixation within the range of ₁₅ mm to 42 mm. The value of this length L ₁ can be appropriately set within a range of 15 _mm to 42 mm according to the length of the engaging portion of the acrylic stand 101 .

FIG. 2 is a configuration diagram of an acrylic stand with a pedestal according to another embodiment of the present invention. In this embodiment, the acrylic plate stand 102 is cut along an outline set so as to surround the outside of the UV _- printed baseball batter character image 122 using an acrylic plate of 100 mm x 10 _mm . Except for the fact that the base 142 is made in an elliptical shape, the rest of the configuration is the same as that of the embodiment shown in _FIG .

Regarding the slit formed in the pedestal, how should the applicant determine the length L, the tip width A, the base width B, and the remaining margin (l - L) C necessary to fix the acrylic stand without wobbling? We repeated the experiment to see if it was good (Experiment 1). In addition, in order to fix the acrylic stand without wobbling, the slit needs a holding force to hold the acrylic stand. (Experiment 2).

These experiments are described below.
FIG. 3 is an explanatory diagram of an experiment using an acrylic plate used to determine the values of the slit length L, base width B, tip width A, and holding force required for the slit formed in the pedestal.
As shown in FIG. 3A, a rectangular acrylic plate P having a thickness d of 3 mm and a side length l of 45 mm was used as the base.
Then, as shown in FIG. 3B, a slit having a base width B of 2.8 mm and a tolerance of ±0.02 is provided.
FIG. 3(c) shows the size of the tip width A that spreads when a load of about 5 kg is applied to the tip while varying the length L of the slit from 15 mm to 40 mm and the remaining margin C (= 45 mm - L). was measured (Experiment 1).

FIG. 3(d) explains the holding force test (experiment 2), in which a 100 mm square acrylic plate Q with a plate thickness of 2.9 mm and 3.1 mm is sandwiched between the back edges of the acrylic plate P and lifted vertically. to examine the holding power. If it could be lifted while being sandwiched, it was judged to have holding power (○).

FIG. 4 is a diagram summarizing the results of Experiments 1 and 2 described above.
Considering from the standpoint of holding power, when the plate thickness is 2.9 mm, the acrylic plate can be held if the length L of the slit is 15 mm to 36 mm, and when the plate thickness is 3.1 mm, it is 21 mm to 37 mm. It can be seen that .

It should be noted here that if the remaining margin C is less than 8 mm, the strength of the acrylic plate P becomes weak, and it breaks when a load of 5 kg is applied.
Therefore, the remaining margin C must be 9 mm or more.
Ultimately, the length L of the slit needs to be 21 mm to 36 mm, the tip width A must be in the range of 3.11 mm to 3.77 mm, and the opening must be wider than the base width B.

In Experiments 1 and 2, the required slit length L and tip width A were measured when a 100 mm square acrylic plate was sandwiched between an acrylic plate of 45 mm x 45 mm with a thickness of 3 mm. However, in the embodiment shown in FIG. 1 or FIG. 2, the thickness of the pedestals 14 ₁ and 14 ₂ and the acrylic plate stands 10 ₁ and 10 ₂ is usually 3 mm, and the acrylic plate stands 10 ₁ and 10 ₂ are Since it is produced by cutting from an acrylic plate of 100 mm×100 mm, there is no practical problem as long as it has the aforementioned slit length L and tip width A.

10 ₁ , 10 ₂ Acrylic plate stand 12 ₁ , 12 ₂ Character image 14 ₁ , 14 ₂ Pedestal 16 ₁ , 16 ₂ Groove 18 ₁ , 18 ₂ One end (tip )
L ₁ , L ₂ ... Length required for fixing A ... Tip width B ... Base width C ... Remainder

Claims (5)

Consists of first and second transparent acrylic plates obtained by extrusion molding and having a thickness d and a tolerance of ±Δd,
The first transparent acrylic plate has a character image UV-printed on one side or both sides thereof, and is cut along an outline set so as to surround the character image to form a plate-shaped acrylic stand,
The second transparent acrylic plate has a pedestal formed with a groove that engages the acrylic stand on one surface and can be attached substantially vertically,
The groove extends inward from the perimeter of the pedestal, and has a length L necessary for fixing the acrylic stand to the pedestal without wobbling when fixed, and one end is open and the other end is open. is a closed slit, the base width of the slit is set to d−Δd, and the tip width is slightly wider than the base width. 2. The acrylic stand with a pedestal according to claim 1, wherein the slit is formed by laser processing. 2. The acrylic stand with a pedestal according to claim 1, wherein said wall thickness d, said tolerance ±Δd, and said root width are 3 mm, ±0.1 mm, and 2.8 mm, respectively. 2. The acrylic stand with a pedestal according to claim 1, wherein the pedestal is rectangular or elliptical. 2. The method according to claim 1, wherein the engagement between the acrylic stand and the pedestal is performed by inserting the acrylic stand from the one end of the slit and sliding it toward the other end. Acrylic stand with pedestal.

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