JP7178024B2 - indicator - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device that is installed on a road surface or the like and teaches predetermined information to passersby.

2. Description of the Related Art Conventionally, there has been known a display device that includes a pair of display plates, the upper sides of the pair of display plates are rotatably connected to each other, and the lower sides of the pair of display plates are widened at a predetermined angle so that the display can be erected on a road surface or the like. It is Also, there is a technique of forming each display plate from plastic by blow molding (see, for example, Patent Document 1, etc.).

The display plate includes a hollow plate-like main body, and a bearing protruding outside the main body from a portion near the upper side of a surface of the main body facing the mating display plate, wherein the bearing includes: A shaft hole is provided through the display panel in the widthwise direction. By aligning the shaft holes of the bearing portions of the pair of display plates and inserting the shaft member, the pair of display plates are rotatably connected.

JP 2004-257018 A

By the way, in the display plate of the display device of Patent Document 1, the bearing portion is also formed by blow molding together with the main body portion. Therefore, the bearing portion is also hollow. As a result, the shaft member is basically supported only by the periphery of the shaft hole in the bearing portion. Furthermore, since the bearing portion protruding from the main body portion is formed in such a manner as to extend the target portion of the main body portion during blow molding, the bearing portion and its peripheral portion are relatively thin. There is concern that Therefore, there is a possibility that the durability of the bearing portion, which is generally required to have relatively high durability, may become relatively low, and there is concern that the bearing portion may be damaged.

SUMMARY OF THE INVENTION An object of the present invention is to provide a display device capable of improving durability.

Hereinafter, each means suitable for solving the above problems will be described separately. It should be noted that actions and effects specific to the corresponding means will be added as necessary.

Means 1. A first display member and a second display member made of synthetic resin, which are integrally formed by blow molding, and upper side portions of the first display member and the second display member are rotatable. A display tool comprising a shaft member connected to
The first display member and the second display member each include a hollow plate-shaped main body portion and a hollow bearing portion projecting from an upper side portion of the main body portion or a portion near the main body portion to the outside of the main body portion. with
The shaft member is inserted through the bearing portion of the first display member and the bearing portion of the second display member,
The bearing portion is provided with an inner protruding portion that protrudes toward the shaft member that is inserted through the bearing portion,
The end of the bearing portion on the tip side in the projecting direction is chamfered,
The bearing portion includes a pair of opposing support wall portions provided with a shaft hole through which the shaft member can be inserted, and a connection wall portion connecting outer peripheral portions of the pair of support wall portions. is provided with the inner protruding portion,
The inner projecting portion is provided at a position spaced apart from the pair of supporting wall portions in the connecting wall portion,
the inner protruding portion and the shaft member are capable of abutting,
The display device , wherein the inner projecting portion is formed with a recessed outer surface side, and is provided on the entire circumferential direction of the connecting wall portion .

According to the means 1, it is possible to increase the portion of the bearing that can support the shaft member. That is, when the shaft member is passed through the hollow bearing portion, the bearing portion is provided with a pair of shaft holes, and the shaft member can be supported at the peripheral edge portion of each shaft hole. Furthermore, by providing the inner protruding portion in the bearing portion, the inner protruding portion can be brought into contact with the shaft member at a position between the pair of shaft holes, so that the inner protruding portion can also support the shaft member. can. In particular, the shaft member can be more reliably supported by the bearing portion by supporting the shaft member also on the inner protruded portion that can be formed wider than the peripheral portion of the shaft hole in the extending direction of the shaft member. can be done. Therefore, when the pair of display members are opened and closed, it is possible to suppress the local application of the force received from the shaft member to the bearing, thereby suppressing damage to the bearing. As a result, it is possible to improve the durability of the bearing portion.

In addition, it can be expected that the inner protruded portion will act as a guide for a jig for drilling when forming a shaft hole in the bearing portion and as a guide for the shaft member when inserting the shaft member into the bearing portion. , workability can be improved. Furthermore, when the inner protrusion is formed by blow molding, a recess is formed at a position corresponding to the inner protrusion on the outer surface side of the bearing. For this reason, for example, in the case of a configuration in which the outer surface of the bearing portion and the other display member can come into contact when opening and closing the pair of display members, the contact area between the outer surface of the bearing portion and the other display member is reduced. It is possible to improve the opening/closing operability of the display device.
Further, for example, compared to the case where the bearing portion is provided with a corner portion, it is possible to prevent a situation in which a thin portion is formed in the bearing portion during blow molding. Therefore, it is possible to suppress damage to the bearing portion and improve durability.
In addition, it is possible to increase the portion of the bearing that can support the shaft member. That is, in the hollow bearing portion, the inner protruding portion can be brought into contact with the shaft member not only at the periphery of the pair of shaft holes but also at the position between the pair of shaft holes (support wall portions). The shaft member can also be supported by the projecting portion.
Further, recesses are formed at positions corresponding to the inner protrusions on the outer surface side of the bearing. Therefore, for example, when the outer surface of the bearing portion and the other display member come into contact when opening and closing the pair of display members, the contact area between the outer surface of the bearing portion and the other display member can be reduced. It is possible to improve the opening/closing operability of the display device.

Means 2. The inner projecting portion is formed to be wider than the thickness of the supporting wall portion in the extending direction of the shaft member,
The connecting wall portion of the first display member and the outer peripheral edge portion of the supporting wall portion are configured so as not to abut against the second display member, and the connecting wall portion of the second display member and the The display device according to means 1, wherein the outer peripheral edge of the support wall is configured so as not to contact the first display member.

According to Means 2 , the shaft member is more reliably supported by the bearing portion by supporting the shaft member also on the inner protruding portion formed wider than the thickness of the support wall portion in the extending direction of the shaft member. can do. Therefore, when the pair of display members are opened and closed, it is possible to suppress the local application of the force received from the shaft member to the bearing, thereby suppressing damage to the bearing. As a result, it is possible to improve the durability of the bearing portion.
Further, for example, when the connecting wall portion of the first display member is pressed against the second display member and deformed, the inner projecting portion of the first display member is pressed against the shaft member, and the first display member is deformed. Rotational displacement between the bearing portion and the shaft member is hindered, and the connecting wall portion of the first display member is pressed against the second display member, thereby preventing relative displacement between the first display member and the second display member. Therefore, it is possible to avoid a situation in which it becomes difficult to open and close the display device due to the trouble. Further, for example, it is possible to avoid a situation in which the support wall portion is deformed due to the outer peripheral edge portion of the support wall portion of the bearing portion of the first display member coming into pressure contact with the second display member.

Means 3. 3. The display device according to means 1 or 2, wherein a connecting portion between the bearing portion and the main body portion is chamfered.

According to means 3, for example, compared to a configuration in which the boundary portion of the main body portion with the bearing portion is not bent or curved toward the bearing portion side, a thin portion is formed at the connection portion between the bearing portion and the main body portion during blow molding. can be prevented from forming. Therefore, it is possible to suppress damage to the bearing portion and its vicinity, and to improve durability.

Means 4. The display device according to any one of means 1 to 3, wherein the display member is provided with a plurality of the bearing portions through which the common shaft member is inserted.

According to the means 4, by providing a plurality of bearing portions, it is possible to further stabilize the connection state between the display members via the shaft member. Furthermore, by providing a plurality of bearings through which a common shaft member is inserted, misalignment or the like between the bearings can be suppressed. It is possible to improve the workability when connecting the display members with the members. In particular, as in the above-described means 1, since each bearing portion is provided with an inner protruding portion, when inserting the shaft member through a plurality of bearing portions (furthermore, the bearing portion of the display member on the other side) ( Since the shaft member is relatively long, the tip side of the insertion direction of the shaft member tends to wobble.

It is a perspective view which shows a display tool. It is a perspective view of the display tool from which the display plate was removed. 4 is a perspective view showing the outer side surface of the display member; FIG. It is a perspective view which shows the inner side surface of a display member. 4 is a partially enlarged perspective view of the inner side surface of the display member; FIG. It is a perspective view of a shaft member. FIG. 4 is a perspective view showing the outer side surface of the holding part; It is a perspective view which shows the inner side surface (mounting surface side) of a holding part. It is a partially enlarged perspective view including a partial cross section of the display member. It is a perspective view including a partial cross section of a display member. 4 is a partially enlarged cross-sectional view of the display member; FIG. 4 is a partially enlarged cross-sectional view of the indicator in the closed state; FIG. FIG. 4 is a partially enlarged cross-sectional view of the indicator in an open state; It is a perspective view which shows the state which stacked with the indicator in a closed state. FIG. 10 is a perspective view of a display device to which a weight member is attached;

An embodiment will be described below with reference to the drawings. As shown in FIGS. 1, 2, 13, etc., the display device 1 includes a first display member 2 and a second display member 3, which are substantially rectangular in front view, and a first display member 2 and a second display member. A shaft member 4 that rotatably connects the upper sides of the display member 3 is provided. The first display member 2 and the second display member 3 are made of high-density polyethylene and integrally formed by blow molding. In this embodiment, the first display member 2 and the second display member 3 have the same size and shape. Although the first display member 2 will be mainly described below, the second display member 3 has the same configuration.

As shown in FIGS. 3, 4, 9 to 11, etc., the first display member 2 includes a hollow plate-like main body 6 and protrudes outside the main body 6 from a portion near the upper side of the main body 6. A hollow bearing portion 7 is provided. The body portion 6 includes a pair of opposed outer wall portions 8 and an inner wall portion 9, and the outer peripheral portions of the outer wall portion 8 and the inner wall portion 9 and the opening peripheral edge portions are connected. Although details will be described later, in the display device 1, the inner wall portions 9 of the first display member 2 and the second display member 3 face each other. Hereinafter, the direction between (the inner wall portion 9 of) the first display member 2 and (the inner wall portion 9 of) the second display member 3 is referred to as “inward”, and the first display member 2 and the second display The direction away from the member 3 is called "outward".

As shown in FIGS. 4, 5, etc., in the vicinity of the upper side of the inner wall portion 9, in a range including the left and right side portions of the inner wall portion 9, outward (to the hollow portion side of the main body portion 6) A shaft allowance groove 11 is provided which is recessed and extends along the upper side of the inner wall portion 9 and has a substantially arcuate vertical cross section. Each shaft allowance groove 11 is provided with two bearing portions 7 protruding inward from the shaft allowance groove 11 . In particular, the bearing portion 7 of this embodiment is configured to protrude inward from the inner side surface of the inner wall portion 9 (see FIG. 11).

Further, the distance between the two bearing portions 7 provided in each shaft allowance groove 11 is slightly wider than the width (longitudinal width) of the bearing portion 7 in the lateral width direction of the first display member 2 . Further, the bearing portion 7 provided in the shaft allowance groove 11 on the left side of the first display member 2 and the bearing portion 7 provided in the shaft allowance groove 11 on the right side of the first display member 2 It is not provided at a line-symmetrical position about the center in the lateral width direction, but is provided at a position slightly longer than the longitudinal width of the bearing portion 7 in the lateral width direction of the first display member 2 from the line-symmetrical position. ing. Therefore, as shown in FIG. 12 and the like, when the first display member 2 and the second display member 3 having the same shape as the first display member 2 are butted against each other with the inner wall portions 9 facing each other, the first display member 2 One of the bearing portions 7 of each shaft allowance groove 11 of the second display member 3 is arranged between the pair of bearing portions 7 of each shaft allowance groove 11 of the display member 2 .

As shown in FIGS. 5, 9, and 11, the bearing portion 7 is a pair of left and right support wall portions provided with shaft holes 13 through which the shaft member 4 can be inserted along the width direction of the first display member 2. 12 and a connection wall portion 14 that connects the outer peripheral portions of the pair of support wall portions 12 . The outer periphery of the support wall portion 12 has a curved shape, and the connecting wall portion 14 also has a substantially arcuate cross section. Further, the connecting portion between the supporting wall portion 12 and the connecting wall portion 14 is chamfered. In other words, the portion of the bearing portion 7 on the tip side in the projecting direction is chamfered. Furthermore, the connecting portion between the bearing portion 7 (the support wall portion 12 and the connecting wall portion 14) and the main body portion 6 has a chamfered shape (curved shape).

6 and 9, the shaft member 4 includes a substantially cylindrical shaft body 16 and a head portion 17 provided on one end side of the shaft body 16 and having a larger diameter than the shaft body 16. , and a pair of elastically deformable locking pieces 18 protruding from the end face of the shaft body 16 on the other end side. The shaft member 4 of this embodiment is integrally formed of polypropylene. Then, as shown in FIG. 12 , the inner wall portions 9 of the first display member 2 and the second display member 3 face each other (butt), and the bearing portions 7 of the first display member 2 in the width direction of the display device 1 are aligned. and the bearing portions 7 of the second display member 3 are alternately arranged, the shaft member 4 is arranged in a pair of bearing portions 7 provided in each shaft allowance groove 11 of the first display member 2, A pair of bearing portions 7 provided in each shaft allowance groove 11 of the second display member 3 are inserted (one shaft member 4 is passed through four bearing portions 7 on each of the left and right sides of the upper side of the display member 1). By doing so, the first display member 2 and the second display member 3 are rotatably connected. Further, in the connected state of the first display member 2 and the second display member 3, the head portion 17 of the shaft member 4 is the bearing portion 7 (one of the first display member 2 and the second display member 3). A locking claw 19 that is substantially locked to the support wall portion 12) and protrudes from each locking piece portion 18 toward the outer peripheral side of the shaft body 16 is positioned on the other of the first display member 2 and the second display member 3. It is substantially locked to the bearing portion 7 (support wall portion 12).

In addition, as shown in FIGS. 12 and 13, when the pair of display members 2 and 3 are connected, the tip end side of the bearing portion 7 of the first display member 2 fits into the shaft allowance groove 11 of the second display member 3. The end portion side of the bearing portion 7 of the second display member 3 is inserted into the shaft allowance groove 11 of the first display member 2 . However, the connecting wall portion 14 of the first display member 2 and the outer peripheral edge portion of the supporting wall portion 12 are configured so as not to contact the second display member 3, and the connecting wall portion 14 of the second display member 3 and , the outer peripheral edge portion of the support wall portion 12 is configured so as not to contact the first display member 2 .

As shown in FIG. 9 and the like, the head portion 17 of the shaft member 4 is provided with a tool locking portion 17a into which the tip of a tool (a flathead screwdriver in this example) can be inserted. When the tool is inserted through the bearing portion 7 , the tip of the tool is difficult to come off from the head portion 17 of the shaft member 4 . Moreover, the bearing portion 7 is spaced apart from the side portion of the first display member 2 (body portion 6 ) toward the central portion in the width direction of the first display member 2 . Therefore, the entire shaft member 4, including the head portion 17, is disposed so as to be recessed into the shaft allowance grooves 11 of the first display member 2 and the second display member 3, making contact from the outside difficult. there is

As shown in FIGS. 3 and 9, the upper side of the outer wall 8 has a substantially arcuate cross-section, and the connecting portion with the inner wall 9 is also chamfered (curved). The display device 1 is closed by bringing the inner walls 9 of the first display member 2 and the second display member 3 into contact with each other (see FIGS. 12 and 14). On the other hand, by separating the lower portions of the first display member 2 and the second display member 3, the display device 1 is brought into an open state. In the present embodiment, when the display tool 1 is opened to some extent (for example, about 35 degrees to 45 degrees), the upper sides of the first display member 2 and the second display member 3 come into contact with each other, and further rotational displacement occurs. are regulated (see FIG. 1, etc.).

As shown in FIGS. 1 and 2, on the outer side surface of the outer wall portion 8, a back surface supporting portion 22 supporting the back surface of a display plate 21 on which predetermined information is written, and a lower side portion of the display plate 21 are provided. , a support frame portion 23 that supports the upper side portion and the left side portion, and the upper side portion, the lower side portion, and the left side portion of the support frame portion 23 protrude toward the surface side of the display plate 21 to prevent the display plate 21 from falling off. A holding portion 24 is provided. In addition, regarding the description of the left and right positions of each configuration, for convenience, the left side and the right side when the target configuration is viewed from the designated direction are described as the left side and the right side, respectively.

Further, as shown in FIG. 3 , an attached portion 26 to which the holding part 31 can be attached is provided on the right side portion of the outer side surface of the outer wall portion 8 . As shown in FIGS. 7 and 8 , the holding part 31 has a substantially plate-like mounting portion 32 that is mounted in contact with the mounting portion 26 , and the mounting surface of the mounting portion 32 to the mounting portion 26 . A parts-side frame-constituting portion 33 extending in a direction orthogonal to the mounting portion 32 from one side portion of the opposite surface, and a tip portion of the parts-side frame-constituting portion 33 extending to the opposite side of the mounting portion 32 and a protruding part-side holding portion 34 . A circular mounting hole 35 is provided in the central portion of the mounting portion 32 , and a pair of upper and lower positioning protrusions 36 projecting from the mounting surface side of the mounting portion 32 are provided with the mounting hole 35 interposed therebetween. Further, the mounting portion 32 is formed in a stepped shape so that the upper portion and the lower portion provided with the positioning protrusions 36 are separated from the part-side holding portion 34 more than the central portion provided with the mounting hole 35. ing.

On the other hand, as shown in FIG. 3 , the mounting portion 26 is provided with mounting holes 27 corresponding to the mounting holes 35 of the holding part 31 . A portion of the mounting portion 26 where the mounting hole 27 is provided is formed in a stepped shape so as to be located inward of the back surface support portion 22 . Furthermore, the portions of the mounting portion 26 corresponding to the upper portion and the lower portion of the mounting portion 32 are formed in a stepped shape so as to be positioned inwardly of the portion in which the mounting hole 27 is provided. , a positioning recess 28 into which the positioning protrusion 36 is inserted. The mounting hole 27 is elongated in the left-right direction, and the width of the positioning recess 28 is substantially the same as that of the mounting hole 27 . The inner side of the positioning recess 28 is divided into three regions arranged side by side.

Then, as shown in FIG. 1 , after the display plate 21 is inserted between the back surface support portion 22 and the holding portion 24 , the holding parts are held in a direction in which the parts-side holding portion 34 protrudes toward the surface side of the display plate 21 . By pressing the mounting portion 31 against the mounting portion 26 , the upper portion and the lower portion of the mounting portion 32 are fitted into the steps of the upper portion and the lower portion of the mounting portion 26 . This restricts the vertical displacement of the holding part 31 . Also, the left and right positions of the holding part 31 are adjusted according to the position of the right side of the display plate 21, and the positioning protrusion 36 of the holding part 31 is inserted into one of the three partitioned areas of the positioning recess 28. As a result, the lateral displacement of the holding part 31 is restricted. Further, the holding part 31 is fixed to the first display member 2 by inserting the bolt 38 into the mounting hole 35 of the holding part 31 and the mounting hole 27 of the mounting part 26 and fixing with the nut 39. , the display plate 21 is prevented from coming off.

In addition, in the thickness direction of the first display member 2, the outer side surface of the part-side holding portion 34 of the holding part 31 is positioned substantially at the same position as the outer side surfaces of the holding portion 24 and the support frame portion 23. The bolt 38 whose head is locked to the outer side surface of the holding part 31 does not protrude outward beyond the outer side surface of the part-side holding portion 34 of the holding part 31 . Further, the portion of the inner wall portion 9 of the first display member 2 to which the nut 39 is locked is formed in a stepped shape so as to be located outside the inner wall portion 9, and the nut 39 In the thickness direction of the display member 2 , it does not protrude inward from the inner side surface of the inner wall portion 9 .

Further, as shown in FIGS. 2 and 4, the inner side surface of the inner wall portion 9 of the first display member 2 is provided with a positional deviation restricting portion 41 at the time of closing at the center of the lower portion. The closed-time positional deviation restricting portion 41 is composed of a concave portion and a convex portion that are arranged laterally across the widthwise central portion of the first display member 2 . Then, by closing the display device 1, the closing displacement regulation portion 41 of the first display member 2 and the closing displacement regulation portion 41 of the second display member 3 are engaged, and the inner wall portion 9 positional deviation of the lower side of the first display member 2 and the second display member 3 in the plane direction of .

Furthermore, as shown in FIG. 3, on the outer side surface of the outer wall portion 8 of the first display member 2, the left side portion and the lower side portion of the support frame portion 23 are provided. A stacking-time misalignment restricting portion 42 is provided, which is composed of a lower side portion and a concave portion provided in the vicinity of the right side portion of the outer wall portion 8 . Then, as shown in FIG. 14 , the display tools 1 are closed, and the display tools 1 are vertically stacked (stacked) in the same direction, so that the positional deviation restricting portion of the lower display tool 1 during stacking is adjusted. 42 engages with the positional deviation restricting portion 42 during stacking of the display tools 1 on the upper side, thereby preventing the display tools 1 from being displaced in the horizontal direction.

In addition, as shown in FIG. 3, the first display member 2 is provided with an opening 43 penetrating in the thickness direction of the first display member 2 at a position corresponding to the back support portion 22 of the outer wall portion 8. there is Four openings 43 are provided, two vertically and two laterally. A locking recess 44 is provided which is recessed into the hole. Further, as shown in FIG. 15, the display device 1 includes a substantially rectangular parallelepiped tank portion 46 capable of storing water, and locking portions 47 provided laterally projecting from vertical intermediate positions on both side surfaces of the tank portion 46 . and a weight member 45 can be attached. Then, by opening the display device 1 and locking the locking portions 47 of the weight member 45 with the locking concave portions 44 of the first display member 2 and the second display member 3, the weight member 45 is It is attached to the display tool 1 . The locking portion 47 of the weight member 45 is accommodated inside the locking recess 44, so that it does not become a hindrance to the installation of the display plate 21 or the like.

Further, as shown in FIG. 4 and the like, a handle hole 48 penetrating through the first display member 2 in the thickness direction is provided between the pair of shaft allowance grooves 11 of the first display member 2 . Further, as shown in FIG. 10 and the like, the inner wall portion 9 has surface-changing portions 49 that protrude toward the outer wall portion 8 on the left and right sides of each opening 43 and between the vertically aligned openings 43 . are provided, some of which are connected (fixed in contact) with the outer wall portion 8 . In addition, as shown in FIG. 1 and the like, anti-slip members 50 made of rubber are attached to the lower sides of the first display member 2 and the second display member 3 .

As shown in FIGS. 9, 11, etc., the bearing portion 7 has a protruding portion on the side of the shaft member 4 inserted through the bearing portion 7 at a position apart from the pair of support wall portions 12 in the connecting wall portion 14. An inner protruding portion 51 is provided to do so. The inner projecting portion 51 of the present embodiment extends along the entire circumferential direction of the connecting wall portion 14 (from the connecting portion with the main body portion 6 on the upper side of the connecting wall portion 14 to the main body portion 6 on the lower side of the connecting wall portion 14). ) is provided. Therefore, the first display member 2 and the shaft member 4 inserted through the shaft hole 13 of the second display member 3 are supported by the peripheral edge portion of the shaft hole 13 and also supported by the inner projecting portion 51 . configured to obtain In addition, in the extending direction of the shaft member 4 (longitudinal width direction of the bearing portion 7), the inner projecting portion 51 is wider than the support wall portion 12 in which the shaft hole 13 is provided. Furthermore, the inner protruding portion 51 formed at the same time as the bearing portion 7 during blow molding is projected toward the hollow portion side of the bearing portion 7 with respect to the general portion of the connecting wall portion 14 of the bearing portion 7 . The outer surface side of the projecting portion 51 is formed to be recessed. In particular, the inner protruding portion 51 of the present embodiment has a substantially trapezoidal cross section so that the peripheral edge of the inner protruding portion 51 does not have sharp corners. It should be noted that the inner protruding portion 51 may be designed to contact the shaft member 4 at the manufacturing stage of the display device 1, or the inner protruding shape may be formed when the peripheral portion of the shaft hole 13 is slightly worn due to repeated use of the display device 1. The design may be such that the portion 51 abuts against the shaft member 4 (even in the manufacturing stage, if the shaft member 4 is deformed, the inner projecting portion 51 abuts against the shaft member 4).

As described in detail above, according to the present embodiment, the bearing portion 7 is provided with the inner protruding portion 51 that protrudes toward the shaft member 4 inserted through the bearing portion 7 . Therefore, it is possible to increase the portion of the bearing portion 7 that can support the shaft member 4 . That is, in the hollow bearing portion 7, the inner protruding portion 51 is attached to the shaft member 4 not only at the periphery of the pair of shaft holes 13 but also at the position between the pair of shaft holes 13 (support wall portions 12). The shaft member 4 can be supported by the inner projecting portion 51 as well. In particular, in the extending direction of the shaft member 4 , the shaft member 4 is supported by the inner protruded portion 51 which can be formed wider than the thickness of the support wall portion 12 , so that the shaft member 4 is supported by the bearing portion 7 . more reliable support. Therefore, when the pair of display members 2 and 3 are opened and closed, it is possible to suppress the local application of the force received from the shaft member 4 to the bearing portion 7 , thereby suppressing damage to the bearing portion 7 . can be done. As a result, the durability of the bearing portion 7 can be improved.

Further, the inner projecting portion 51 acts as a guide for a drilling jig when forming the shaft hole 13 in the bearing portion 7 and as a guide for the shaft member 4 when inserting the shaft member 4 into the bearing portion 7. can be expected, and workability can be improved. Furthermore, a concave portion is formed at a position corresponding to the inner projecting portion 51 on the outer surface side of the bearing portion 7 . Therefore, for example, when the pair of display members 2 and 3 are opened and closed, when the outer surface of the bearing portion 7 and the other display member 2 and 3 come into contact with each other, the outer surface of the bearing portion 7 and the other display member 2, 3 can be reduced, and the opening/closing operability of the display device 1 can be improved.

In this embodiment, basically, the connecting wall portion 14 of the bearing portion 7 of the first display member 2 and the outer peripheral edge portion of the support wall portion 12 are the second display member 3 (shaft allowance groove 11). The connecting wall portion 14 of the bearing portion 7 of the second display member 3 and the outer peripheral edge portion of the support wall portion 12 do not contact the first display member 2 (shaft allowance groove 11). (there is a possibility of contact if the shaft member 4 is deformed). In this case, for example, when the connecting wall portion 14 of the first display member 2 is pressed against the second display member 3 and deformed, the inner projecting portion 51 of the first display member 2 is pressed against the shaft member 4 . However, the rotation displacement between the bearing portion 7 of the first display member 2 and the shaft member 4 is hindered, and the connecting wall portion 14 of the first display member 2 is pressed against the second display member 3, thereby causing the first display member 2 to move. It is possible to avoid a situation in which the relative displacement between the display member 2 and the second display member 3 is also hindered, making it difficult to open and close the display device 1 . Furthermore, for example, the support wall portion 12 is deformed or damaged due to the outer peripheral edge portion of the support wall portion 12 of the bearing portion 7 of the first display member 2 coming into pressure contact with the second display member 3. can be avoided.

Further, in the present embodiment, the end portion of the bearing portion 7 on the leading end side in the projecting direction is chamfered. Therefore, for example, compared to the case where the bearing portion 7 is provided with a corner portion, it is possible to prevent a situation in which a thin portion is formed in the bearing portion 7 during blow molding. Therefore, damage to the bearing portion 7 can be suppressed, and durability can be improved.

Furthermore, the connecting portion between the bearing portion 7 and the main body portion 6 is chamfered. For this reason, for example, compared to a configuration in which the boundary portion of the main body portion 6 with the bearing portion 7 is not bent or curved toward the bearing portion 7 side, the joint portion between the bearing portion 7 and the main body portion 6 is It is possible to prevent a situation in which a thin portion is formed. Therefore, damage to the bearing portion 7 and its vicinity can be suppressed, and durability can be improved.

In addition, in this embodiment, two bearing portions 7 are provided in each of the pair of left and right shaft allowance grooves 11 in the display members 2 and 3, and the inner wall portions 9 of the display members 2 and 3 are opposed to each other. When they are butted together, four shaft members 4 of the first display member 2 and four bearing portions 7 of the second display member 3 are arranged alternately in each of the left and right shaft allowance grooves 11 of the display members 2 and 3 . The display members 2 and 3 are connected by collectively inserting one shaft member 4 into the four bearing portions 7 in each of the left and right shaft allowance grooves 11 of the display members 2 and 3 . Thus, by providing a plurality of bearing portions 7 in each of the shaft allowance grooves 11 of each of the display members 2 and 3, the state of connection between the display members 2 and 3 via the shaft member 4 is further stabilized. (suppress blurring, etc.). Furthermore, by providing a plurality of bearing portions 7 through which a common shaft member 4 is inserted, misalignment or the like between the bearing portions 7 is suppressed, and the plurality of bearing portions 7 can be collectively connected with one shaft member 4. Therefore, it is possible to improve workability when connecting the display members 2 and 3 with the shaft member 4 . In particular, as described above, since each bearing portion 7 is provided with the inner protruding portion 51, the shaft member 4 can be connected to a plurality of bearing portions 7 (and further, the bearing portions 7 of the display members 2 and 3 on the other side). (Since the shaft member 4 is relatively long, the distal end side of the shaft member 4 in the insertion direction tends to wobble) can also be performed relatively easily.

In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other applications and modifications not exemplified below are naturally possible.

(a) In the above embodiment, the first display member 2 is provided with two shaft allowance grooves 11, and each shaft allowance groove 11 is provided with two bearing portions 7. Arrangement and the like can be changed as appropriate. For example, in the first display member 2, only one shaft allowance groove 11 may be provided at a position including the central portion in the lateral width direction of the first display member 2, or one bearing portion 7 may be provided in each shaft allowance groove 11. Alternatively, three or more of each may be provided. Further, for example, one bearing portion 7 may be provided in the left shaft allowance groove 11 and two bearing portions 7 may be provided in the right shaft allowance groove 11 . Further, the bearing portion 7 may be configured to protrude upward from the upper side portions of the display members 2 and 3 instead of protruding inward from the inner wall portion 9 . However, by causing the bearing portion 7 to protrude inward from the inner wall portion 9, it is possible to simplify the configuration for closing the display device 1, and the like.

(b) In the above embodiment, each bearing portion 7 is provided with a pair of shaft holes 13 and one inner protruding portion 51. For example, the bearing portion 7 has two inner protruding portions 51. may be provided, or there may be a bearing portion 7 in which the inner protruding portion 51 is not provided. Further, for example, in the connected state of the display members 2 and 3, regarding the support wall portion 12 of the bearing portion 7 located closest to the central portion in the width direction of the display device 1, the shaft hole 13 is omitted, and the bearing portion 7 has , one shaft hole 13 (the periphery thereof) and the inner protruding portion 51 may support the shaft member 4 .

(c) In the above embodiment, the first display member 2 and the second display member 3 are made of high-density polyethylene, and the shaft member 4 is made of polypropylene. be. In addition, although the first display member 2 and the second display member 3 are configured to have the same shape in the above embodiment, they can be configured to have different shapes. For example, the configuration for holding the display plate 21 from the second display member 3 may be omitted. Further, for example, the shaft allowance groove 11 of the first display member 2 is formed slightly deeper so that the bearing portion 7 of the first display member 2 is contained within the thickness range of the main body portion 6, and the bearing portion of the second display member 3 is formed. 7 is slightly lengthened, the bearing portion 7 of the second display member 3 is inserted into the shaft allowance groove 11 of the first display member 2, and the first display member 2 and the second display member 3 The shaft member 4 may be used to connect the bearings 7 .

DESCRIPTION OF SYMBOLS 1... Indicator, 2... 1st indicator member, 3... 2nd indicator member, 4... Shaft member, 6... Body part, 7... Bearing part, 8... Outer wall part, 9... Inner wall part, 11... Shaft allowance groove, Reference numerals 12: support wall portion, 13: shaft hole, 14: connection wall portion, 21: display plate, 51: inner protruded portion.

Claims (4)

A first synthetic resin display member and a second display member integrally formed by blow molding, and upper side portions of the first display member and the second display member are rotatable. A display tool comprising a shaft member connected to
Each of the first display member and the second display member includes a hollow plate-shaped main body portion and a hollow bearing portion projecting from an upper side portion of the main body portion or a portion near the main body portion to the outside of the main body portion. with
The shaft member is inserted through the bearing portion of the first display member and the bearing portion of the second display member,
The bearing portion is provided with an inner protruding portion that protrudes toward the shaft member that is inserted through the bearing portion,
The end of the bearing portion on the tip side in the projecting direction is chamfered,
The bearing portion includes a pair of opposing support wall portions provided with a shaft hole through which the shaft member can be inserted, and a connection wall portion connecting outer peripheral portions of the pair of support wall portions. is provided with the inner protruding portion,
The inner projecting portion is provided at a position spaced apart from the pair of supporting wall portions in the connecting wall portion,
the inner protruding portion and the shaft member are capable of abutting,
The inner protruding portion is formed with a recessed outer surface side, and is provided on the entire circumferential direction of the connecting wall portion.A display tool characterized by: The inner projecting portion is formed to be wider than the thickness of the supporting wall portion in the extending direction of the shaft member,
The connecting wall portion of the first display member and the outer peripheral edge portion of the supporting wall portion are configured so as not to abut against the second display member, and the connecting wall portion of the second display member and the 2. The display device according to claim 1, wherein an outer peripheral edge portion of the support wall portion is configured so as not to come into contact with the first display member. 3. The indicator according to claim 1, wherein a connecting portion between said bearing portion and said main body portion is chamfered. 4. The display device according to claim 1, wherein the display member is provided with a plurality of the bearing portions through which the common shaft member is inserted.

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