Accessories

Abstract

To provide an accessory tool which can be securely attached by inserting an attachment shaft on a display piece side into an attachment hole on a base side without controlling high dimensional accuracy. [Solution] The accessory comprises an acrylic base 3 and a display piece 15. A pair of lock spring pieces 31, each consisting of an arm portion 27 and a claw portion 29, are arranged facing each other at a distance on the back surface 15b of the display piece 15 as an attachment shaft. The arm portions 27, 27 of the pair of lock spring pieces 31, 31 are inserted into an attachment hole 13 of the base 3 in a state in which they are elastically contracted in the direction of approaching each other, and when the respective claw portions 29, 29 are removed from the base 3, they elastically recover, and the display piece 15 is attached to the base 3 in a state in which the claw portions 29, 29 are locked and engaged. If the attachment shaft is inserted and a dimensional relationship is ensured that allows the base 3 to be sandwiched between the claw portion 29 and the display piece 15 side, the display piece 15 can be securely attached to the base 3.

Description

[Technical field]

[0001] The present invention relates to an accessory that can be attached to a bag, smartphone, etc., or used as a key holder. [Background technology]

[0002] 2. Description of the Related Art Accessory devices that can be detachably attached to a base with a display piece showing a character, designed text, or the like have been commercially available for some time. An attachment hole with a diameter of approximately 3 mm is formed in the flat base, and the attachment shaft on the back of the display piece is passed through the attachment hole. Since the display piece is removable, the type of display piece to be attached and its attachment position on the base can be freely arranged.

[0003] Existing bases are made of a relatively flexible synthetic resin such as silicone, so when the mounting shaft is inserted into the mounting hole, the mounting shaft elastically contacts the inner surface of the mounting hole, allowing the display piece to fit snugly into the base. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Utility Model Registration No. 3238134 Summary of the Invention [Problem to be solved by the invention]

[0005] Recently, acrylic stands such as those shown in Patent Document 1 have appeared and are becoming widely sold. An acrylic stand consists of two acrylic panels that are joined together with paper or the like printed with images of characters, landscapes, etc. sandwiched between them to form the main body. Since the acrylic panels are highly transparent, the images are displayed vividly through the acrylic panels, making for a very attractive appearance. If the main body of this acrylic stand could be used as a base for the above-mentioned type of accessory, it is expected that the value of the accessory would be further increased. However, because the acrylic plate is hard, in order for the mounting shaft to fit snugly into the mounting hole in the base, the mounting shaft and the mounting hole must be manufactured with extremely high dimensional precision; even the slightest deviation in dimensional precision could result in the mounting shaft not fitting into the mounting hole or in the mounting shaft accidentally falling out of the hole.

[0006] The present invention was made in response to the above-mentioned conventional problems, and its object is to provide an accessory that, when using an acrylic base, does not have the risk of the mounting shaft not fitting into the mounting hole or accidentally falling out of the mounting hole, even without high dimensional accuracy control. [Means for solving the problem]

[0007] The present invention has been made to solve the above-mentioned problems, and is an accessory comprising a base and a display piece made of acrylic plate and allowing an image to be viewed from the front, the base having an attachment hole penetrating in the thickness direction of the plate, and a pair of locking spring pieces consisting of an arm portion protruding perpendicular to the display piece and a claw portion at the tip of the arm portion arranged opposite each other at a distance from each other on the back side of the display piece as an attachment axis, the arm portions of the pair of locking spring pieces are inserted into the attachment hole from the front side of the base in a state in which they are elastically contracted in diameter in the direction approaching each other, and when each claw portion comes out from the back side of the base, they elastically recover, and the display piece is attached to the base in a state in which the claw portions are locked and engaged to the back side.

[0008] Preferably, a columnar base end portion is interposed as an attachment shaft between the rear surface of the display piece and the pair of lock spring pieces. Preferably, a spacer having an expanded diameter so that it cannot be inserted into the mounting hole is provided between the display piece and the base end, and when the display piece is attached to the base, a gap is formed between the back surface of the display piece and the front surface of the base due to the presence of the spacer. Preferably, the engaging surfaces of the claw portions are in planar contact with the rear surface of the base. Preferably, the mounting hole is rectangular, and the contour of the mounting shaft, excluding the claw portion, is also rectangular when viewed in the axial direction. Preferably, the protruding tips of the claws swell forward in a semispherical shape, and a gap between the pair of claws forms a half-split surface so that the claws face each other. Effect of the Invention

[0009] According to the accessory of the present invention, the display piece can be securely attached by simply inserting the attachment shaft into the attachment hole of the acrylic base without having to control high dimensional accuracy. [Brief description of the drawings]

[0010] [Figure 1] 1 is a perspective view showing a state before a display piece is attached to a base of an accessory according to an embodiment of the present invention; [Diagram 2] 2 is a perspective view of the display piece of FIG. 1 as seen from the back side. [Diagram 3] FIG. 3 is a perspective view of the integrally molded mounting shaft and spacer of FIG. 2. [Figure 4] 2 is an explanatory diagram of a procedure for attaching a display piece to the base of FIG. 1. [Diagram 5] 2 is a perspective view showing a state in which a display piece is attached to the base of FIG. 1. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] An accessory 1 according to an embodiment of the present invention will be described with reference to the drawings. In Fig. 1, reference numeral 3 denotes a horizontally long, roughly rectangular base. This base 3 is made by sandwiching display paper 5, on which a colored, single-color background image is printed, between two transparent acrylic plates and bonding them together with a suitable adhesive, with the edges of the acrylic plates directly bonded together. The background image can be seen from the surface 3a through the acrylic plates.

[0012] A protrusion 7 extends in a semicircular shape in a front view from the center of the upper side of the base 3. A round hole 9 is formed in the protrusion 7, and a ball chain 11 is inserted through this round hole 9. Four mounting holes 13, 13, 13, 13 are formed at equal intervals in the horizontal direction in the base 3. The mounting holes 13 are rectangular, and extend in a straight line of the same shape from the front surface 3a to the back surface 3b of the base 3, penetrating through in the plate thickness direction.

[0013] Reference numeral 15 denotes a display piece. This display piece 15 is also constructed using an acrylic plate like the base 3, and an image can be seen from the surface 15a. However, the image is a bear character's face and hiragana characters, and when distinguishing between them, they are displayed as a "bear face" piece 15, a "ha character" piece 15, a "na character" piece 15, and a "ko character" piece 15. A disk-shaped spacer 17 is joined to the center of the back surface 15b of the display piece 15 with one plate surface overlapping. A mounting shaft 19 protrudes coaxially from the other plate surface of the spacer 17, and its axial direction is perpendicular to the display piece 15. The mounting shaft 19 has a reduced diameter compared to the spacer 17. The spacer 17 and the mounting shaft 19 are integrally molded and made of relatively rigid polyvinyl chloride. In FIG. 1, for ease of viewing, the display piece 15, the spacer 17, and the mounting shaft 19 are shown in an exploded state.

[0014] As shown enlarged in Figures 2 and 3, the mounting shaft 19 has a shape that consists of a cylinder and, at one end in the protruding direction, a hemisphere with a diameter larger than that of the cylinder but smaller than that of the spacer 17, with the circular flat surfaces of the hemispheres connected coaxially to form an integrated unit, with necessary parts having concave surfaces. The cylindrical body has radially opposing portions that are flat surfaces parallel to the axial direction, and the outer circumferential surface of the cylindrical body is composed of a pair of rectangular side surfaces 19a, 19a and arcuate side surfaces 19b, 19b that retain the outer shape of the cylindrical body between them, forming a square shape when viewed from the axial direction. When viewed from the axial direction, the size of the portion shaped by the rectangular side surfaces 19a, 19a and the arcuate side surfaces 19b, 19b is such that it can be inserted into the above-mentioned mounting hole 13 with a small gap so as not to rotate around the axis.

[0015] The boundary between the cylindrical body and the circular plane is a step surface 19c. In addition, the portion connecting the hemisphere at the tip to the cylinder is recessed in a rectangular parallelepiped shape from the hemisphere side to the middle of the cylinder in the axial direction, forming a concave surface 21, which is split in half. The concave surface 21 is composed of a concave top surface 21a and a pair of opposing concave side surfaces 21b, 21b. It is open downward and in the front-rear direction as viewed in Fig. 3. The concave top surface 21a is perpendicular to the axial direction of the cylinder, and the concave side surfaces 21b, 21b are parallel to the rectangular side surfaces 19a, 19a, and are all flat surfaces. Due to this concave surface 21, when viewed from the axial tip side, the hemispherical surfaces 23, 23 face each other with the concave top surface 21a as a half-split surface.

[0016] The base end 25 of the mounting shaft 19 is configured as a solid, substantially square prism portion whose outer surface is configured by a pair of rectangular side surfaces 19a, 19a on the spacer 17 side and arcuate side surfaces 19b, 19b. The arm portions 27, 27 are composed of a pair of halves split by the concave surface 21 on the protruding side of the concave top surface 21a of the concave surface 21. Therefore, the outer surface of the arm portion 27 is composed of a rectangular side surface 19a, some of the arcuate side surfaces 19b, 19b, and the concave side surface 21b, and the pair of arm portions 27, 27 are protruded apart by the concave top surface 21a. The claw portions 29, 29 are formed of a quarter sphere split in half together with the arm portions 27, 27, and the outer surfaces are formed of semi-spherical surfaces 23, 23. The claw portion 29 is located at the tip of the protruding direction of the arm portion 27. When viewed from the axial direction, the claw portion 29 extends radially outward from the arm portion 27 by the amount of the step surface 19c. This step surface 19c serves as an engagement surface for the claw portion 29. This engagement surface 19c is parallel to the back surface 15b of the display piece 15.

[0017] The arm portion 27 and the claw portion 29 constitute a lock spring piece 31, and a pair of lock spring pieces 31, 31 are arranged facing each other with a radial gap between them. Due to the shape and material properties of the lock spring piece 31, it is possible for the lock spring piece 31 to spring-swing relative to the base end portion 25 interposed between the display piece 15 side.

[0018] The accessory 1 is constructed as described above, and the procedure for attaching the display piece 15 to the base 3 will be described with reference to FIG. As shown in FIG. 4(a), the display piece 15 is held in the hand and the lock spring pieces 31, 31 of the mounting shaft 19 protruding from the back surface 15b are pressed into the mounting hole 13 from the front surface 3a of the base 3. As shown in FIG. 4(b), due to the spring characteristics of the locking spring pieces 31, 31, the tips of the arm portions 27, 27 are elastically contracted in diameter by the gap of the concave surface 21 in the direction in which they approach each other, and the claw portions 29, 29 are inserted into the mounting hole 13 while being pulled toward the arms 27, 27.

[0019] As shown in Fig. 4(c), when the claws 29, 29 come out of the back surface 3b of the base 3, the arms 27, 27 elastically recover, and when viewed from the axial direction, the claws 29, 29 protrude outward from the arms 27, 27. The entire surface of the locking surface 19c of the claws 29 abuts against the edge of the mounting hole 13 on the back surface 3b of the base 3. Meanwhile, the spacer 17 is not inserted into the mounting hole 13, but remains in abutment against the edge of the mounting hole 13 on the front surface 3a of the base 3, and the base 3 is sandwiched between the claws 29 and the spacer 17 on the display piece 15 side. Therefore, when the claws 29 abut against the edge of the mounting hole 13 on the back surface 3b of the base 3, they are automatically locked. In this state, the display piece 15 is attached to the base 3 as shown in FIG.

[0020] The mounting shaft 19 on the display piece 15 side and the mounting hole 13 on the base 3 side are both square, and the mounting shaft 19 is inserted into the mounting hole 13 without being able to rotate around the shaft, so the display piece 15 can be attached in any orientation, up, down, left, or right, according to the image. This is convenient when there is a correct orientation, such as the "bear face" piece 15, the "ha" piece 15, the "na" piece 15, and the "ko" piece 15. With this accessory device 1, as long as the above-mentioned mounting shaft 19 is inserted and the dimensional relationship is ensured so that the base 3 can be clamped between the claw portion 29 and the display piece 15 side, the display piece 15 can be securely attached to the base 3 without having to control for high dimensional accuracy.

[0021] Also, by inserting fingertips into the gaps formed by the spacers 17 to pinch the claws 29, 29 toward each other and pushing them into the mounting hole 13, the display piece 15 can be removed from the base 3 in the opposite manner to the above. Therefore, the type of display piece 15 attached to the base 3 can be easily replaced.

[0022] Although the embodiment of the present invention has been described in detail above, the specific configuration is not limited to this embodiment, and the invention also includes design changes within the scope of the present invention without departing from the gist of the invention. For example, in the above embodiment, the base 3 is rectangular and a simple one-color background image is used, but when actually manufacturing the product, various images combining characters, letters, etc. can be used, and various irregular shapes such as star shapes can be shaped on the base 3. [Explanation of symbols]

[0023] 1...Accessory 3...Base 3a...Front side 3b...Back side 5...Indication paper 7...Protruding part 9...Round hole 11...Ball chain 13...Mounting hole 15...Display piece 15a...Front side 15b...Back side 17...Spacer 19...Mounting shaft 19a...Rectangular side 19b...Circular side 19c...Step surface (locking surface) 21...Concave surface 21a…Concave top surface 21b…Concave side surface 23...Semispherical surface 25...Proximal end 27…Arm section 29…Claw section 31...Lock spring piece

Claims

1. The display includes a base and a display piece that are made of an acrylic plate and allow an image to be viewed from the surface; The base is provided with a mounting hole penetrating in a plate thickness direction, A pair of lock spring pieces, each of which is made up of an arm portion protruding in a direction perpendicular to the display piece and a claw portion at the tip of the arm portion, are disposed on the back side of the display piece as an attachment shaft, and are arranged opposite to each other with a gap therebetween; This accessory is characterized in that the arm portions of the pair of locking spring pieces are inserted into the mounting hole from the surface of the base with their diameters elastically contracted in the direction of approaching each other, and when each claw portion comes out from the back surface of the base, it elastically recovers, and the display piece is attached to the base with the claw portions locked and engaged with the back surface.

2. In the accessory according to claim 1, This accessory is characterized in that a columnar base end portion is interposed as an attachment shaft between the back surface of the display piece and the pair of lock spring pieces.

3. The accessory according to claim 1 or 2, This accessory is characterized in that a spacer having an expanded diameter so that it cannot be inserted into the mounting hole is provided between the display piece and the base end, and when the display piece is attached to the base, a gap is formed between the back surface of the display piece and the front surface of the base due to the presence of the spacer.

4. In the accessory according to claim 3, An accessory device, characterized in that the engaging surface of the claw portion comes into planar contact with the rear surface of the base.

5. In the accessory according to claim 4, This accessory is characterized in that the mounting hole is rectangular, and the contour of the mounting shaft, excluding the claw portion, is also rectangular when viewed in the axial direction.

6. In the accessory according to claim 5, This accessory is characterized in that the protruding tips of the claws swell in a semi-spherical shape toward the front, and the gap between a pair of claws forms a half-split surface so that the claws face each other.

Images