Key holder

Abstract

Provided is a key holder that can be switched to a state where it can be used as a panel stand without removing the panel from the main body. **Solution**: The key holder includes a plate-shaped first plate body 2 having a first A-end portion 21P and a first through hole 23 formed therein, a plate-shaped second plate body 3 having a second A-end portion 31P and a second through hole 33 formed therein, and an annular body 5 inserted through the first through hole 23 and the second through hole 33. The first A-end portion 21P has a first recess 24. The second A-end portion 31P has a second recess 34. The distance between the first recess 24 and the first through hole 23 is a first predetermined distance. The distance between the second recess 34 and the second through hole 33 is a second predetermined distance. A third predetermined distance, which is the distance between two opposing portions of the annular body 5, is equal to the first predetermined distance and the second predetermined distance.

Description

Technical Field

[0001] The present invention relates to a key holder.

Background Art

[0002] The key holder described in Patent Document 1 includes a key holder body that houses a character panel inside. A through hole is provided in the key holder body. The user removes the panel from the key holder body and fits the protrusion of the panel into the through hole. The panel stands on top of the key holder body with the key holder body as a pedestal. Therefore, the user can enjoy looking at the panel even during transportation, and at the same time, it can also be used as a stand by standing up the panel.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above key holder, since it is necessary to remove the panel from the main body, there is a possibility that the panel removed from the main body may be lost. For this reason, a key holder that can switch to a state where it can be used as a panel stand without removing the panel from the main body is desired.

[0005] An object of the present invention is to provide a key holder that can switch to a state where it can be used as a panel stand without having to remove the panel from the main body.

Means for Solving the Problems

[0006] The key holder according to the present invention has a plate-shaped first plate body having a first A end portion and a first through hole formed therein, a plate-shaped second plate body having a second A end portion and a second through hole formed therein, and an annular body inserted through the first through hole and the second through hole. The first A end portion has a first concave portion, the second A end portion has a second concave portion, the distance between the first concave portion and the first through hole is a first predetermined distance, the distance between the second concave portion and the second through hole is a second predetermined distance, and a third predetermined distance, which is the distance between two opposing portions of the annular body, is equal to the first predetermined distance and the second predetermined distance.

[0007] According to the present invention, the user can make the key holder stand on its own with a part of the annular body entering the first concave portion and the second concave portion. Therefore, the user can switch the key holder to a state where it can be used as a panel stand only by performing an operation of inserting the annular body into the first concave portion and the second concave portion.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Best Mode for Carrying Out the Invention

[0009] An embodiment of the key holder 1 according to the present invention will be described with reference to the drawings. The drawings referred to are used to explain the technical features that can be adopted by the present invention. The configuration of the described device and the like is not intended to be limited thereto, but is merely an illustrative example. The lower left, upper right, upper left, lower right, upper, and lower directions in FIG. 1 respectively correspond to the front, rear, left, right, upper, and lower directions of the key holder 1.

[0010] The key holder 1 is an accessory for carrying a panel 6 on which various types of information (hereinafter referred to as "identification information Im") including a company or individual logo, introduction text, QR code (registered trademark), character, etc. is displayed. The key holder 1 can be attached to a bag or belt by a hook or chain and carried. Further, the key holder 1 can also be used as a panel stand for supporting the panel 6 in a self-standing manner.

[0011] As shown in FIGS. 1 to 3, the key holder 1 includes a first plate body 2, a second plate body 3, an annular body 5, and panels 6 (6[1], 6[2]).

[0012] The first plate body 2 is a substantially rectangular plate that is long in the vertical direction. The first plate body 2 is made of acrylic and is transparent. As shown in FIGS. 3 and 4, the first plate body 2 has a first A end portion 21P, a first A opposing end portion 21Q, a first B end portion 21R, and a first B opposing end portion 21S. The first A end portion 21P, the first A opposing end portion 21Q, the first B end portion 21R, and the first B opposing end portion 21S respectively correspond to the right end portion, the left end portion, the upper end portion, and the lower end portion of the first plate body 2.

[0013] Of the four corners of the first plate body 2, the corner where the first A end 21P and the first B opposing end 21S are connected is called the first corner 221. The corner where the first B opposing end 21S and the first A opposing end 21Q are connected is called the first corner 222. The corner where the first A opposing end 21Q and the first B end 21R are connected is called the first corner 223. The corner where the first B end 21R and the first A end 21P are connected is called the first corner 224. The first corners 221 to 223 are sharp. The first corner 224 is curved.

[0014] In the vicinity below and at the center in the left - right direction of the first B end 21R of the first plate body 2, a first through - hole 23 is provided. The first through - hole 23 has a circular shape.

[0015] A first recess 24 is formed at a position above the center in the vertical direction and below the first through - hole 23 in the first A end 21P. As shown in FIG. 4, the first recess 24 includes a first bottom 24A and a pair of first side portions 240.

[0016] The first bottom 24A corresponds to the deepest part of the first recess 24. The first bottom 24A is curved. The pair of first side portions 240 extend from the first bottom 24A toward the first A end 21P. The pair of first side portions 240 include a first adjacent side portion 24B and a first separated side portion 24C. The first adjacent side portion 24B is close to the first corner 224, and the first separated side portion 24C is separated from the first corner 224. The distance between the first corner 224 and the first adjacent side portion 24B is smaller than the distance between the first corner 224 and the first separated side portion 24C.

[0017] The direction extending from the side of the first bottom 24A along the first adjacent side portion 24B toward the side of the first A end 21P is inclined toward the side close to the first corner 224 with respect to the direction orthogonal to the first A end 21P. The inclination angle is about 45 degrees. The connecting portion between the first adjacent side portion 24B and the first A end 21P is called the "connecting portion 251". The connecting portion 251 is curved.

[0018] The direction extending from the side of the first bottom portion 24A toward the side of the first A end portion 21P along the first separation side portion 24C is orthogonal to the first A end portion 21P. The connecting portion between the first separation side portion 24C and the first A end portion 21P is referred to as the "connecting portion 252". The connecting portion 252 is pointed.

[0019] The minimum distance between the first corner 224 and the first through hole 23 is denoted as L21. The minimum distance between the connecting portion 252 and the first through hole 23 is denoted as L22. The maximum distance between the connecting portion 251 and the first through hole 23 is denoted as L23. The depth of the first recess 24 is denoted as L24. The depth L24 corresponds to the lateral distance between the first A end portion 21P and the first bottom portion 24A.

[0020] A first predetermined distance L2 between the first through hole 23 and the first recess 24 of the first plate body 2 is defined. The first predetermined distance L2 indicates a value between the minimum interval and the maximum interval between the first through hole 23 and the first recess 24.

[0021] The second plate body 3 has the same shape as the first plate body 2. The second plate body 3 is made of acrylic and is transparent. The second plate body 3 is located behind the first plate body 2.

[0022] The second A end portion 31P, the second A opposing end portion 31Q, the second B end portion 31R, and the second B opposing end portion 31S of the second plate body 3 correspond to the first A end portion 21P, the first A opposing end portion 21Q, the first B end portion 21R, and the first B opposing end portion 21S of the first plate body 2. The second corners 321, 322, 323, 324 of the second plate body 3 correspond to the first corners 221, 222, 223, 224 of the first plate body 2. The second through hole 33 of the second plate body 3 corresponds to the first through hole 23 of the first plate body 2. The second recess 34, the second bottom portion 34A, the pair of second side portions 340, the second proximity side portion 34B, and the second separation side portion 34C of the second plate body 3 correspond to the first recess 24, the first bottom portion 24A, the pair of first side portions 240, the first proximity side portion 24B, and the first separation side portion 24C of the first plate body 2.

[0023] The connecting portion 351, which is the connecting portion between the second proximal side portion 34B and the second A end portion 31P, corresponds to the connecting portion 251 of the first plate body 2. The connecting portion 352, which is the connecting portion between the second separated side portion 34C and the second A end portion 31P, corresponds to the connecting portion 252 of the first plate body 2.

[0024] The minimum distance L31 between the second corner 324 and the second through hole 33 is equal to the distance L21 of the first plate body 2. The minimum distance L32 between the connecting portion 351 and the second through hole 33 is equal to the distance L22 of the first plate body 2. The maximum distance L33 between the connecting portion 352 and the second through hole 33 is equal to the distance L23 of the first plate body 2. The depth L34 of the second recess 34 is equal to the depth L24 of the first plate body 2. The second predetermined distance L3 between the second through hole 33 and the second recess 34 is equal to the first predetermined distance L2 of the first plate body 2.

[0025] The panels 6[1] and 6[2] are plate-shaped. The shape of the panels 6[1] and 6[2] when viewed from the front is the same as that of the first plate body 2 and the second plate body 3. The thickness of the panels 6[1] and 6[2] is thinner than that of the first plate body 2 and the second plate body 3. The panels 6[1] and 6[2] are made of plastic and are opaque. Identification information Im is attached to the front surfaces of the panels 6[1] and 6[2].

[0026] The panels 6[1] and 6[2] are stacked in the front-rear direction. The panel 6[1] is located in front of the panel 6[2]. The first plate body 2 is located in front of the panel 6[1]. The second plate body 3 is located behind the panel 6[2]. The panels 6[1] and 6[2] are sandwiched between the first plate body 2 and the second plate body 3 in the front-rear direction. The identification information Im of the panel 6[1] passes through the first plate body 2. The user can visually recognize the identification information Im from in front of the first plate body 2. When the panels 6[1] and 6[2] are not particularly distinguished, they are referred to as "panel 6".

[0027] The 3A end portion 61P, the 3A opposing end portion 61Q, the 3B end portion 61R, and the 3B opposing end portion 61S of the panel 6 correspond to the 1A end portion 21P, the 1A opposing end portion 21Q, the 1B end portion 21R, and the 1B opposing end portion 21S of the first plate body 2. The second corners 621, 622, 623, 624 of the panel 6 correspond to the first corners 221, 222, 223, 224 of the first plate body 2. The third through hole 63 of the panel 6 corresponds to the first through hole 23 of the first plate body 2. The third recess 64 of the panel 6 corresponds to the first recess 24 of the first plate body 2.

[0028] As shown in FIGS. 1 to 3 and FIG. 5, the annular body 5 is a metal split ring having an annular shape. The cross-sectional shape of the annular body 5 is circular. The annular body 5 is inserted through the first through hole 23 of the first plate body 2, the second through hole 33 of the second plate body 3, and the respective third through holes 63 of the panels 6[1] and 6[2]. The annular body 5 has a fixed portion 51 and a movable portion 52.

[0029] The fixed portion 51 is the main structure that holds the circular shape of the annular body 5. The fixed portion 51 has a shape with a part of the circle missing. The movable portion 52 is located at the missing portion of the fixed portion 51. The shape of the fixed portion 51 is arc-shaped. One end of the movable portion 52 and one end of the fixed portion 51 are connected by a shaft 53. One end of the movable portion 52 is supported so as to be swingable inward with respect to one end of the fixed portion 51. The other end of the movable portion 52 engages with the other end of the fixed portion 51.

[0030] When the user presses the movable portion 52 with a finger or the like, the movable portion 52 is displaced inward. A gap is formed between the other end of the movable portion 52 and the other end of the fixed portion 51. This enables the attachment and detachment of the first plate body 2, the second plate body 3, and the panel 6 to and from the annular body 5. Further, when the pressing of the movable portion 52 by the user is released, the movable portion 52 returns to its original position by the elastic restoring force. The other end of the movable portion 52 engages with the other end of the fixed portion 51. Thereby, the first plate body 2, the second plate body 3, and the panel 6 are held so as not to fall off from the annular body 5.

[0031] As shown in FIG. 5, the outer diameter of the annular body 5 is denoted as L51, and the inner diameter is denoted as L52. The diameter of the cross-section of the annular body 5 is denoted as L53. The diameter L53 is smaller than the diameters of the first through-hole 23 of the first plate body 2 and the second through-hole 33 of the second plate body 3. The diameter L53 is smaller than the depth L24 of the first recess 24 of the first plate body 2 and the depth L34 of the second recess 34 of the second plate body 3.

[0032] A third predetermined distance L5, which is the distance between two opposed portions of the annular body 5, is defined. The third predetermined distance L5 indicates a value that is larger than the inner diameter L52 of the annular body 5 and smaller than the outer diameter L51. For example, the third predetermined distance L5 includes the average value ((L51 + L52) / 2) of the outer diameter L51 and the inner diameter L52 of the annular body 5.

[0033] The third predetermined distance L5, the first predetermined distance L2 of the first plate body 2, and the second predetermined distance L3 of the second plate body 3 include values common to each other. Hereinafter, this is referred to as "the first predetermined distance L2 and the second predetermined distance L3 are equal to the third predetermined distance L5".

[0034] As shown in FIG. 1, the first plate body 2, the second plate body 3, and the panel 6[1][2] are supported so as to hang downward from the annular body 5 in a state of being drooped downward by gravity. In this state, the first plate body 2, the second plate body 3, and the panel 6[1][2] are laminated in the front-rear direction. The key holder 1 is attached to a bag or a belt by a hook or a chain (not shown) provided on the annular body 5 and carried. In this state, the identification information Im of the panel 6[1] passes through the first plate body 2. The user can visually recognize the identification information Im from the front of the first plate body 2.

[0035] As shown in Fig. 6, the inner diameter L52 of the annular body 5 is larger than the distances L21 and L31 between the first plate body 2 and the second plate body 3 (L52 > L21, L31). That is, the distances L21 and L31 between the first plate body 2 and the second plate body 3 are smaller than the third predetermined distance L5 of the annular body 5. Also, the first corner 224 of the first plate body 2 and the second corner 324 of the second plate body 3 are curved. For this reason, when the annular body 5 rotates in the clockwise direction when viewed from the front with the portion inserted into the first through hole 23 and the second through hole 33 of the annular body 5 as the center, the annular body 5 does not contact the first corner 224 of the first plate body 2 and the second corner 324 of the second plate body 3.

[0036] As shown in Fig. 7, the inner diameter L52 of the annular body 5 is larger than the distances L22 and L32 between the first plate body 2 and the second plate body 3 (L52 > L22, L32). That is, the distances L22 and L32 between the first plate body 2 and the second plate body 3 are smaller than the third predetermined distance L5 of the annular body 5. Also, the first proximity side portion 24B of the first plate body 2 and the second proximity side portion 34B of the second plate body 3 are inclined respectively. For this reason, when the annular body 5 further rotates in the clockwise direction, the annular body 5 does not contact the connecting portion 251 and the first proximity side portion 24B of the first plate body 2, and the connecting portion 351 and the second proximity side portion 34B of the second plate body 3.

[0037] As shown in Fig. 8, the outer diameter L51 of the annular body 5 is substantially the same as the distances L23 and L33 between the first plate body 2 and the second plate body 3 (L51 ≒ L23, L33). That is, the distances L23 and L33 between the first plate body 2 and the second plate body 3 are equal to or greater than the third predetermined distance L5 of the annular body 5. For this reason, when the annular body 5 further rotates in the clockwise direction, the annular body 5 contacts the first separation side portion 24C of the first recess 24 of the first plate body 2 and the second separation side portion 34C of the second recess 34 of the second plate body 3. Thereby, further rotation of the annular body 5 is restricted.

[0038] Also, the first predetermined distance L2 of the first plate body 2, the second predetermined distance L3 of the second plate body 3, and the third predetermined distance L5 of the annular body 5 are equal. For this reason, a part of the annular body 5 enters the first recess region 24R of the first recess 24 of the first plate body 2 and the second recess region 34R of the second recess 34 of the second plate body 3.

[0039] For example, with a part of the annular body 5 entering the first concave portion 24 of the first plate body 2 and the second concave portion 34 of the second plate body 3, the user separates the first B-facing end portion 21S of the first plate body 2 from the second B-facing end portion 31S of the second plate body 3. The first plate body 2 rotates and moves with the first B-end portion 21R as a fulcrum, and the second plate body 3 rotates and moves with the second B-end portion 31R as a fulcrum. The first B-facing end portion 21S of the first plate body 2 moves forward, and the second B-facing end portion 31S of the second plate body 3 moves backward. The movement of the first plate body 2 and the second plate body 3 is restricted by the annular body 5 restricting the movement of the first plate body 2 and the second plate body 3 in the direction of separating from each other.

[0040] As a result, as shown in FIG. 9, the key holder 1 can be in a self-standing state with the first B-facing end portion 21S of the first plate body 2 and the second B-facing end portion 31S of the second plate body 3 each in contact with the mounting surface. Note that the identification information Im of the panel 6[1] passes through the first plate body 2. Therefore, the key holder 1 functions as a panel stand where the identification information Im of the panel 6[1] can be visually recognized. The user can visually recognize the identification information Im from the front of the first plate body 2.

[0041] Also, for example, with a part of the annular body 5 entering the first concave portion 24 of the first plate body 2 and the second concave portion 34 of the second plate body 3, the user separates the first A-facing end portion 21Q of the first plate body 2 from the second A-facing end portion 31Q of the second plate body 3. The first plate body 2 rotates and moves with the first A-end portion 21P as a fulcrum, and the second plate body 3 rotates and moves with the second A-end portion 31P as a fulcrum. The first A-facing end portion 21Q of the first plate body 2 moves forward, and the second A-facing end portion 31Q of the second plate body 3 moves backward. The movement of the first plate body 2 and the second plate body 3 is restricted by the annular body 5 restricting the movement of the first plate body 2 and the second plate body 3 in the direction of separating from each other.

[0042] As a result, as shown in Fig. 10, the key holder 1 can stand independently with the first A-facing end 21Q of the first plate body 2 and the second A-facing end 31Q of the second plate body 3 each in contact with the placement surface. Therefore, the key holder 1 functions as a panel stand that allows the identification information Im of the panel 6[1] to be visible. The user can view the identification information Im from the front of the first plate body 2.

[0043] Note that the diameter L53 of the cross-section of the annular body 5 is smaller than the depth L24 of the first recess 24 of the first plate body 2 and the depth L34 of the second recess 34 of the second plate body 3. For this reason, in the state where the key holder 1 functions as a panel stand, the annular body 5 does not protrude outward from the first A-end 21P of the first plate body 2 and the second A-end 31P of the second plate body 3.

[0044] As described above, in the key holder 1, the first predetermined distance L2 of the first plate body 2, the second predetermined distance L3 of the second plate body 3, and the third predetermined distance L5 of the annular body 5 are equal. In this case, the user can enter a part of the annular body 5 into the first recess 24 of the first plate body 2 and the second recess 34 of the second plate body 3 by rotating the annular body 5 with respect to the first plate body 2 and the second plate body 3, thereby making the key holder 1 stand independently. Therefore, the user can switch the key holder 1 to a state where it can be used as a panel stand by simply performing the operation of rotating the annular body 5.

[0045] The distances L21 and L31 between the first plate body 2 and the second plate body 3 are smaller than the third predetermined distance L5 of the annular body 5 (L52 > L21, L31). For this reason, when performing the operation of rotating the annular body 5 to enter a part of the annular body 5 into the first recess 24 and the second recess 34, it is possible to prevent a part of the annular body 5 from being caught by the first corner 224 and the second corner 324. Therefore, the user can smoothly perform the operation of rotating the annular body 5.

[0046] The first corner 224 and the second corner 324 are curved. For this reason, when rotating the annular body 5, it is possible to prevent a part of the annular body 5 from being caught by the first corner 224 and the second corner 324. Therefore, the user can smoothly perform the operation of rotating the annular body 5.

[0047] The distances L22 and L32 between the first plate body 2 and the second plate body 3 are smaller than the third predetermined distance L5 of the annular body 5 (L52 > L22, L32). Also, the direction extending along the first proximity side portion 24B of the first plate body 2 is inclined toward the side closer to the first angle 224 with respect to the direction orthogonal to the first A end portion 21P. The direction extending along the second proximity side portion 34B of the second plate body 3 is inclined toward the side closer to the second angle 324 with respect to the direction orthogonal to the second A end portion 31P. Therefore, when performing an operation of rotating the annular body 5 and causing a part of the annular body 5 to enter the first recess 24 and the second recess 34, it is possible to prevent a part of the annular body 5 from being caught by the connecting portions 251 and 351 or being caught by the first proximity side portion 24B and the second proximity side portion 34B. Accordingly, the user can smoothly perform the operation of rotating the annular body 5.

[0048] The outer diameter L51 of the annular body 5 is substantially the same as the distances L23 and L33 between the first plate body 2 and the second plate body 3 (L51 ≒ L23, L33). The distances L23 and L33 between the first plate body 2 and the second plate body 3 are equal to or greater than the third predetermined distance L5 of the annular body 5. Therefore, in a state where the annular body 5 has entered the first recess 24 and the second recess 34, the annular body 5 contacts the first separation side portion 24C of the first recess 24 and the second separation side portion 34C of the second recess 34. Accordingly, a state where a part of the annular body 5 has entered the first recess 24 and the second recess 34 can be stably maintained.

[0049] The diameter L53 of the cross-section of the annular body 5 is smaller than the depth L24 of the first recess 24 of the first plate body 2 and the depth L34 of the second recess 34 of the second plate body 3. Therefore, in a state where the key holder 1 functions as a panel stand, the annular body 5 does not protrude outward from the first A end portion 21P of the first plate body 2 and the second A end portion 31P of the second plate body 3. Accordingly, in a state where a part of the annular body 5 has entered the first recess 24 and the second recess 34, it is possible to prevent the annular body 5 from protruding from the first A end portion 21P of the first plate body 2 and the second A end portion 31P of the second plate body 3.

[0050] The first plate body 2 and the second plate body 3 are substantially rectangular. In this case, the user can use the key holder 1 as a panel stand by standing the key holder 1 in different orientations.

[0051] The annular body 5 is circular. Therefore, the user can smoothly move the first plate body 2 and the second plate body 3 along the annular body 5.

[0052] The first plate body 2 and the second plate body 3 are transparent. For this reason, the user can use the key holder 1 as a panel stand where the identification information Im can be visually recognized by sandwiching the panel 6 with the identification information Im between the first plate body 2 and the second plate body 3 and standing the key holder 1.

[0053] The present invention is not limited to the above embodiments, and various modifications are possible.

[0054] The number of panels 6 is not limited to two, and may be one or three or more. The first plate body 2 and the second plate body 3 may be marked. The shapes of the first plate body 2 and the second plate body 3 are not limited to rectangles. For example, the first plate body 2 and the second plate body 3 may be square, or may be polygons with five or more sides. The annular body 5 is not limited to circular, and may be rectangular. Recesses may be provided at the first A facing end 21Q of the first plate body 2 and the second A facing end 31Q of the second plate body 3. The annular body 5 may be stretchable. In this case, the third predetermined distance L5 of the annular body 5 indicates a value that is larger than the inner diameter L52 of the annular body 5 in the most contracted state and smaller than the outer diameter L51 of the annular body 5 in the most extended state.

Explanation of Reference Numerals

[0055] 1: Key holder, 2: First plate body, 3: Second plate body, 5: Annular body, 6: Panel, 21P: First A end, 21Q: First A opposing end, 21R: First B end, 21S: First B opposing end, 23: First through hole, 24: First recess, 24A: First bottom, 24B: First proximity side, 24C: First separation side, 24R: First recess region, 31P: Second A end, 31Q: Second A opposing end, 31R: Second B end, 31S: Second B opposing end, 33: Second through hole, 34: Second recess, 34A: Second bottom, 34B: Second proximity side, 34C: Second separation side, 34R: Second recess region, 224: First corner, 251: Connecting part, 252: Connecting part, 324: Second corner, 351: Connecting part, 352: Connecting part, L2: First predetermined distance, L3: Second predetermined distance, L5: Third predetermined distance

Claims

1. A key holder having a first plate body with a first A end and a first through hole formed therein, a second plate body with a second A end and a second through hole formed therein, and an annular body inserted through the first through hole and the second through hole, wherein the first A end has a first recess, the second A end has a second recess, the distance between the first recess and the first through hole is a first predetermined distance, the distance between the second recess and the second through hole is a second predetermined distance, and a third predetermined distance, which is the distance between two opposing portions of the annular body, is equal to the first predetermined distance and the second predetermined distance. A key holder characterized by the above.

2. The first plate body has a first B end connected to the first A end at a first corner, the first through hole is formed near the first B end, and the distance between the first through hole and the first corner is smaller than the third predetermined distance. The second plate body has a second B end connected to the second A end at a second corner, the second through hole is formed near the second B end, and the distance between the second through hole and the second corner is smaller than the third predetermined distance. The key holder according to claim 1, characterized by the above.

3. The key holder according to claim 2, characterized in that the first corner and the second corner are curved.

4. The first recess has a first bottom, and a pair of first side portions connected to the first bottom, including a first proximity side portion close to the first corner and a first separation side portion separated from the first corner. The second recess has a second bottom, and a pair of second side portions connected to the second bottom, including a second proximity side portion close to the second corner and a second separation side portion separated from the second corner. The direction extending from the side of the first bottom along the first proximity side portion toward the side opposite to the side of the first bottom is inclined toward the side close to the first corner with respect to the direction orthogonal to the first A end, and the direction extending from the side of the second bottom along the second proximity side portion toward the side opposite to the side of the second bottom is inclined toward the side close to the second corner with respect to the direction orthogonal to the second A end. The key holder according to claim 3, characterized by the above.

5. ​ ​ The distance between the connecting portion of the first proximal side portion and the first A end portion and the first through hole is smaller than the third predetermined distance, and the distance between the connecting portion of the second proximal side portion and the second A end portion and the second through hole is smaller than the third predetermined distance. The key holder according to claim 4, characterized in that.

6. The distance between the connecting portion of the first separated side portion and the first A end portion and the first through hole is equal to or greater than the third predetermined distance, and the distance between the connecting portion of the second separated side portion and the second A end portion and the second through hole is equal to or greater than the third predetermined distance. The key holder according to claim 4, characterized in that.

7. The key holder according to claim 1, characterized in that the cross-sectional diameter of the annular body is smaller than the depths of the first recess and the second recess.

8. The key holder according to claim 1, characterized in that the first plate body and the second plate body are rectangular.

9. The key holder according to claim 1, characterized in that the annular body is circular.

10. The key holder according to claim 1, characterized in that the first plate body and the second plate body are transparent.

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