JP7178025B2 - 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. In other words, the bearing protruding from the main body is formed in a hollow shape so as to extend the target portion of the main body during blow molding, so that the bearing and its peripheral portions are relatively thin. It is feared that this will occur. 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
Each of the first display member and the second display member includes a pair of outer wall portions and an inner wall portion facing each other while being spaced apart, and a bearing portion that supports the shaft member;
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 includes a connecting portion connecting a portion of the outer wall portion that bulges toward the inner wall portion and the inner wall portion,
The connecting portion is located on an inner side of the inner wall portion, which is a direction between the first display member and the second display member, relative to a portion adjacent to the connecting portion in the axial direction of the shaft member. is located in
the bearing portion of the first display member protrudes inward from the inner wall portion of the first display member, and
The bearing portion of the second display member protrudes inward from the inner wall portion of the second display member, and
The outer wall portion includes a substantially plate-shaped outer wall base plate portion, and the outer wall base plate portion protrudes inward from the outer wall base plate portion. and a substantially cylindrical outer wall side bearing configuration portion that opens,
The inner wall portion includes a substantially plate-shaped inner wall base plate portion and an inner wall side bearing forming portion projecting inward from the inner wall base plate portion,
At least a tip end portion of the outer wall side bearing structure portion in a protruding direction is connected to the inner wall side bearing structure portion, and a connection portion between the outer wall side bearing structure portion and the inner wall side bearing structure portion constitutes the connection portion,
The bearing portion includes a pair of support wall portions and a connection wall portion that connects the outer peripheral portions of the pair of support wall portions,
The connecting portion includes the pair of support wall portions and the connecting wall portion,
A display device , wherein the shaft hole through which the shaft member can be inserted is provided at a position of the pair of support wall portions including the portion where the connecting portion is provided .

According to the means 1, the thickness of the bearing portion in the connecting portion can be set to the sum of the thicknesses of the outer wall portion and the inner wall portion. Therefore, the bearing portion can be made relatively thick, and the strength and rigidity of the bearing portion can be increased. As a result, it is possible to suppress damage or the like of the bearing portion and improve the durability of the bearing portion. In addition, the connecting portion is positioned inward of a portion of the inner wall portion adjacent to the connecting portion in the axial direction of the shaft member. Therefore, of the bearing portion, a portion that allows the shaft member to be inserted and supports the shaft member (hereinafter referred to as a “support wall portion”) can be exposed to the outside (surface side) of the display member. Therefore, each of the supporting walls has a thick structure in which an extended portion of the outer wall overlaps an extended portion of the inner wall, or an extended portion of the outer wall and an extended portion of the inner wall. It can be a close double-walled structure. As a result, the effect of improving the durability of the bearing portion can be achieved more reliably.

Further , by protruding both the bearing portion of the first display member and the bearing portion of the second display member inward from the inner wall portion, the shape of the bearing portion of the first display member and the bearing portion of the second display member The shape of the part can be the same. As a result, the first display member and the second display member can be the same. It is possible to achieve a dramatic improvement in performance. Further, for example, a concave portion for inserting the bearing portion of the second display member is provided on the side of the bearing portion of the first display member, and the bearing portion of the first display member is located on the inner side of the inner wall portion. Compared to the case where it does not protrude inward from the surface, the projection length from the inner surface of the inner wall portion of the bearing portion of the second display member can be relatively shortened, and the second display member It is possible to suppress damage, etc. of the bearing portion of the

Means 2 . a closed state in which the inner wall portion of the first display member and the inner wall portion of the second display member face each other, approach or contact each other and extend substantially parallel to each other;
The lower side of the first display member is configured to be able to change to an open state in which it is separated from the lower side of the second display member,
A protrusion protruding outward from the outer wall base plate portion is provided at a position of the outer wall portion adjacent to or close to the outer wall side bearing forming portion in the axial direction of the shaft member,
When the display devices in the closed state are laid down and stacked vertically, the protrusion of the first display member or the second display member arranged upward among the lower display devices , the display device according to means 1 , which is inserted inside the outer wall side bearing structure part of the first display member or the second display member arranged downward among the display devices on the upper side .

According to the means 2 , the positional deviation of the display devices in the horizontal direction when the display devices are stacked (stacked) in the closed state is prevented by utilizing the outward opening shape of the outer wall-side bearing-constituting portion. can be prevented.
Means 3. A plate installation portion in which a display plate on which predetermined information is written is installed is provided on the outer side surface of the outer wall portion. 3. An indicator according to means 1 or 2, characterized in that the opening of the bearing structure is closed.
Means 4. Of the outer wall portion, the protrusion is provided at a line-symmetrical position of the outer wall side bearing-constituting portion centering on the lateral width direction central portion of the first display member and the second display member,
When the display devices in the closed state are laid down and stacked vertically in the same direction, the first display member or the second display member arranged upward among the lower display devices Means 2, wherein the projecting portion is inserted inside the outer wall side bearing structure portion of the first display member or the second display member arranged downward of the upper display device. indicator.

It is a perspective view which shows a display tool. It is a perspective view of the display tool from which the display plate and the weight member are 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. It is a perspective view of a shaft member. It is a partially enlarged perspective view including a partial cross section of the display member. It is a partially enlarged perspective view including a partial cross section of the 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. 4 is a partially enlarged cross-sectional view showing a stacking state with the indicator in a closed state;

An embodiment will be described below with reference to the drawings. As shown in FIGS. 1, 2, 10, 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, 6, etc., the first display member 2 includes a pair of outer wall portions 6 and an inner wall portion 7 facing each other while being spaced apart from each other. are connected between the outer peripheral portions of and between the opening peripheral portions. Further, as shown in FIGS. 4, 6, 7, 9, etc., the first display member 2 is provided with a bearing portion 8 that supports the shaft member 4. As shown in FIG. Although details will be described later, in the display device 1, the inner wall portions 7 of the first display member 2 and the second display member 3 are arranged to face each other. Hereinafter, the direction between (the inner wall portion 7 of) the first display member 2 and (the inner wall portion 7 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 FIG. 4 and the like, the portion on the upper side of the inner wall portion 7 is recessed outward (toward the hollow portion of the first display member 2) from one left and right side portion to the other side portion of the inner wall portion 7. In addition, a shaft allowance groove 9 extending along the upper side of the inner wall portion 7 and having a substantially arcuate vertical cross section is provided. The bearing portions 8 are provided two each (four in total) on both sides of the central portion of the inner wall portion 7 in the lateral width direction so as to protrude inward from the shaft allowance groove 9 . The bearing portion 8 of this embodiment is configured to protrude inward from the inner side surface of the inner wall portion 7 (see FIG. 9).

Further, the interval between the bearing portions 8 provided in the first display member 2 is longer than the length obtained by multiplying the width of the bearing portions 8 in the lateral width direction of the first display member 2 by three. Further, the bearing portion 8 is not provided at a line-symmetrical position about the central portion in the width direction of the inner wall portion 7, but is slightly longer than the width of the bearing portion 8 in the width direction of the inner wall portion 7 from the line-symmetrical position. It is provided at a position shifted by a distance. For this reason, as shown in FIG. 9 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 walls 7 facing each other, the display device Each bearing portion 8 of the first display member 2 and the corresponding bearing portion 8 of the second display member 3 are substantially adjacent to each other at four locations in the width direction of the display panel 1 .

As shown in FIG. 7 and the like, the bearing portion 8 includes a pair of left and right support wall portions 11 provided with a shaft hole 12 through which the shaft member 4 can be inserted along the width direction of the first display member 2, and a pair of support wall portions 11 and 12. A connection wall portion 13 that connects the outer peripheral portions of the wall portions 11 is provided. As shown in FIGS. 6 and 8, the outer periphery of the support wall portion 11 has a curved shape, and the connecting wall portion 13 also has a substantially arcuate cross section. Furthermore, as shown in FIG. 7 and the like, the connecting portion between the supporting wall portion 11 and the connecting wall portion 13 is chamfered.

As shown in FIG. 5, the shaft member 4 includes a substantially cylindrical shaft body 15, a head portion 16 provided on one end side of the shaft body 15 and having a larger diameter than the shaft body 15, A pair of elastically deformable locking piece portions 17 protruding from the end surface of the other end portion side of 15 are provided. The shaft member 4 of this embodiment is integrally formed of polypropylene. Then, as shown in FIG. 9 , the inner wall portions 7 of the first display member 2 and the second display member 3 are butted against each other, and the bearing portions 8 of the first display member 2 substantially adjacent in the width direction of the display device 1 are aligned. , and the bearing portion 8 of the second display member 3, the first display member 2 and the second display member 3 are rotatably connected. In this embodiment, the four bearing portions 8 provided on the first display member 2 are provided with a relatively large distance from each other, and the first display member 2 and the second display member 3 are connected by Four shaft members 4 are used. In addition, in the connected state of the first display member 2 and the second display member 3, the head portion 16 of the shaft member 4 is the bearing portion 8 (one of the first display member 2 and the second display member 3). An engaging claw 18 that is substantially engaged with the support wall portion 11) and protrudes from each engaging piece portion 17 toward the outer peripheral side of the shaft main body 15 is attached to the other of the first display member 2 and the second display member 3. It is substantially locked to the bearing portion 8 (support wall portion 11). In addition, as shown in FIG. 9 , in the coupled state of the pair of display members 2 and 3 , the distal end side of the bearing portion 8 of the first display member 2 in the projecting direction is inserted into the shaft allowance groove 9 of the second display member 3 . , and the projecting direction tip side of the bearing portion 8 of the second display member 3 is inserted into the shaft allowance groove 9 of the first display member 2 .

As shown in FIG. 5, the head portion 16 of the shaft member 4 is provided with a tool locking portion 16a into which the tip of a tool (a flathead screwdriver in this example) can be inserted. Further, as shown in FIG. 4 and the like, the bearing portion 8 is spaced from the side portion of the first display member 2 toward the central portion in the width direction of the first display member 2 . Therefore, as shown in FIG. 9, the entire shaft member 4, including the head portion 16, is disposed so as to be recessed into the shaft allowance grooves 9 of the first display member 2 and the second display member 3. It is becoming difficult to make contact with

The display device 1 is closed by causing the inner wall portion 7 of the first display member 2 and the inner wall portion 7 of the second display member 3 to face each other and approach or abut each other and extend substantially parallel to each other. (see FIGS. 9 and 11). On the other hand, by separating the lower portions of the first display member 2 and the second display member 3, the display tool 1 is opened (see FIG. 2). In this embodiment, when the display device 1 is opened to some extent (for example, about 20 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. is now regulated.

As shown in FIGS. 7, 8, etc., the bearing portion 8 of the present embodiment includes a connecting portion 21 in which a portion of the outer wall portion 6 that bulges toward the inner wall portion 7 and the inner wall portion 7 are connected. I have. More specifically, the outer wall portion 6 includes a substantially plate-like outer wall base plate portion 22 and an outer wall base plate portion 22 that protrudes inward from the outer wall base plate portion 22, is closed at the distal end in the projecting direction, and has a substantially open outer wall. A tubular outer wall side bearing forming portion 23 is provided. The inner wall portion 7 includes a substantially plate-like inner wall base plate portion 24 and an inner wall side bearing forming portion 25 protruding inward from the inner wall base plate portion 24 . Further, the distal end side of the outer wall side bearing forming portion 23 is inserted inside the inner wall side bearing forming portion 25 . In this embodiment, in the outer wall side bearing forming portion 23 and the inner wall side bearing forming portion 25, the portion positioned slightly inward of the shaft allowance groove 9 provided in the inner wall base plate portion 24 is shifted toward the inner side. 2, the outer wall side bearing-constituting portion 23 and the inner wall side bearing-constituting portion 25 are integrally connected to form a connecting portion 21 . That is, of the bearing portion 8, the pair of support wall portions 11 and most of the connecting wall portion 13 (parts other than the boundary portion between the bearing portion 8 and the inner wall portion 7, and the support wall portion 11 (including the portion where the shaft hole 12 is provided) is configured by the connecting portion 21 . In addition, in the vicinity of the boundary between the bearing portion 8 and the inner wall portion 7, the inner wall side bearing forming portion 25 and the outer wall side bearing forming portion 23 face each other and are adjacent to each other to form a double wall structure.

Further, as described above, the bearing portion 8 in which the outer peripheral shape of the support wall portion 11 is substantially arcuate has upper and lower wall portions (connecting walls connecting the outer peripheral portions of the pair of support wall portions 11) in the vertical cross section. The portions 13) extend inwardly, slantingly toward the side adjacent to each other. That is, as shown in FIG. 8, the inner wall side bearing forming portion 25 forming the outer (protruding side) shape of the bearing portion 8 has a substantially tapered shape in which the vertical width gradually narrows toward the inner side. . Furthermore, as shown in FIG. 7, in this embodiment, the pair of support wall portions 11 extend inwardly so as to slightly bring the distance between them closer to each other, and the bearing portion 8 (inner wall side bearing structure). The portion 25) has a substantially tapered shape in which the left and right widths of the first display member 2 are gradually narrowed inward.

In addition, as shown in FIGS. 7 and 8, the inner wall side bearing forming part 25 is connected to the rear surface (outer side surface) of the inner wall side bearing forming part 25 on the tip side of the outer wall side bearing forming part 23. It becomes a tapered shape close to 25. In addition, the portion between the connecting portion 21 and the outer wall base plate portion 22 of the outer wall side bearing forming portion 23 also extends continuously at the same angle as the portion on the tip portion side. The outer shape of the portion 23 as a whole (or the shape of the inner hollow portion of the outer wall-side bearing-constituting portion 23) has a substantially truncated quadrangular pyramid shape.

Furthermore, the connecting portion between the inner wall side bearing forming portion 25 (the support wall portion 11 and the connecting wall portion 13) and the inner wall base plate portion 24 is chamfered (curved). In addition, the connecting portion between the outer wall side bearing forming portion 23 and the outer wall base plate portion 22 is chamfered (curved).

As shown in FIGS. 1 and 3, a plate setting portion 28 is provided on the upper portion of the outer side surface of the outer wall portion 6 to mount a display plate 27 on which predetermined information is written. The plate setting portion 28 is provided by recessing the outer side surface of the outer wall portion 6 inward, and the display plate 27 can be accommodated inside. Further, the plate installation portion 28 is provided with fixing holes 29 at a plurality of locations through which fixing members such as bolts and screws can be inserted. In addition, the plate installation portions 28 are provided in two of the outer wall side bearing forming portions 23 provided at four locations spaced apart from each other in the lateral width direction of the outer wall portion 6, and positioned on the side of the central portion in the lateral width direction of the outer wall portion 6. The display plate 27 is provided in a range including (the opening of) the outer wall side bearing constituent portion 23, and the display plate 27 is installed in the plate installation portion 28 so that the openings of the two outer wall side bearing constituent portions 23 are closed. It's becoming

As shown in FIG. 2 and the like, the outer wall portion 6 has the first outer wall side bearing forming portions 23 positioned on the lateral side of the outer wall portion 6 among the four outer wall side bearing forming portions 23 . Positions close to each other in the width direction of the display member 2 (the axial direction of the shaft member 4), more specifically, the two outer wall sides located on the sides of the first display member 2 around the center in the width direction of the first display member 2 Projections 31 projecting outward from the outer wall base plate portion 22 are provided at line-symmetrical positions of the bearing-constituting portion 23 . Then, as shown in FIGS. 11 and 12, the display tools 1 are closed, and the display tools 1 are vertically stacked (stacked) in the same direction, so that the projecting portion 31 of the lower display tool 1 is , is inserted (engaged) into the opening of the outer wall side bearing structure 23 of the upper display tool 1, and the protrusion 31 of the upper display tool 1 is inserted into the opening of the outer wall side bearing structure 23 of the lower display tool. is inserted into This prevents the display devices 1 from being misaligned in the horizontal direction. In addition, as shown in FIG. 2, in the lower part of the outer wall portion 6 as well, the positional deviation regulating protrusion 32 projecting outward from the outer wall base plate portion 22 and the position provided at the line symmetrical position of the positional deviation regulating protrusion 32 When the display devices 1 are stacked in the closed state, the positional deviation regulating protrusions 32 and the positional deviation regulating recesses 33 of the upper and lower display devices 1 are engaged with each other to prevent horizontal movement. Displacement is prevented.

In addition, as shown in FIG. 2 and the like, the first display member 2 is provided with an opening 34 penetrating in the thickness direction of the first display member 2 at a position below the plate installation portion 28 . Further, the outer wall portion 6 is provided with a locking recess portion 35 recessed inward corresponding to the lower edge portion of the opening portion 34 . In addition, as shown in FIG. 1, the display tool 1 is in the open state, so that it extends over the locking recess 35 of the first display member 2 and the locking recess 35 of the second display member 3, A weight member 36 made of metal, which is locked in the locking concave portion 35 of the first display member 2 and the second display member 3, can be attached.

Further, as shown in FIGS. 4, 6, etc., the inner wall portion 7 is provided with surface-changing portions 38 recessed toward the outer wall portion 6 on the sides and below the openings 34, some of which are It is connected (fixed in contact) with the outer wall portion 6 . In addition, as shown in FIGS. 1, 4, etc., security lights (not shown) are installed at the center positions of the upper sides of the first display member 2 and the second display member 3 (a substantially cylindrical base portion is A safety light installation portion 39 is provided for inserting between the first display member 2 and the second display member 3 .

As described in detail above, according to the present embodiment, in the bearing portion 8, the outer wall portion 6 (the outer wall side bearing forming portion 23) and the inner wall portion 7 (the inner wall side bearing forming portion 25) are connected to each other. 21 are provided. In this embodiment, the pair of support wall portions 11 provided with the shaft hole 12 for axially supporting the shaft member 4 and the majority of the connection wall portion 13 connecting the pair of support wall portions 11 are formed by the connection portion 21. The thickness of this portion can be the sum of the thicknesses of the outer wall portion 6 and the inner wall portion 7 . Therefore, the bearing portion 8 can be made relatively thick, and the strength and rigidity of the bearing portion 8 can be increased. As a result, breakage of the bearing portion 8 can be suppressed, and the durability of the bearing portion 8 can be improved.

Further, the connecting portion 21 protrudes inward from a shaft allowance groove 9 provided in the inner side surface of the inner wall portion 7 . Therefore, the support wall portion 11 can be exposed to the outside (surface side) of the display members 2 and 3 . Therefore, each of the support wall portions 11 is formed with a thickness in which a portion (outer wall side bearing forming portion 23) extending from the outer wall portion 6 and a portion (inner wall side bearing forming portion 25) extending from the inner wall portion 7 overlap each other. Alternatively, it may be a double-wall structure in which the outer-wall-side bearing-constituting portion 23 and the inner-wall-side bearing-constituting portion 25 are close to each other. As a result, the effect of improving the durability of the bearing portion 8 can be achieved more reliably.

In particular, in this embodiment, both the bearing portion 8 of the first display member 2 and the bearing portion 8 of the second display member 3 protrude inward from the inner wall portion 7 (inner wall base plate portion 24), The shape of the bearing portion 8 of the first display member 2 and the shape of the bearing portion 8 of the second display member 3 can be the same. As a result, the first display member 2 and the second display member 3 can be the same. , a dramatic improvement in productivity, etc. can be achieved. Further, for example, a concave portion for inserting the bearing portion of the second display member is provided on the side of the bearing portion of the first display member, and the bearing portion of the first display member is located on the inner side of the inner wall portion. Compared to the case where the bearing portion 8 of the second display member 3 does not protrude inward from the surface, the projection length from the inner wall portion 7 of the bearing portion 8 of the second display member 3 can be relatively shortened, and the bearing Damage or the like of the portion 8 can be suppressed.

Further, in the vertical cross section, the upper and lower walls of each of the outer wall-side bearing-constituting portion 23 and the inner-wall-side bearing constituting portion 25 extend inwardly, slanting toward each other. For this reason, for example, the outer wall side bearing structure portion 23 and the inner wall side bearing structure portion 25 are transferred from the outer wall base plate portion 22 and the inner wall base plate portion 24 to the outer wall base plate portion 22 and the inner wall base plate portion. 24, the thickness of the outer wall side bearing forming portion 23, the inner wall side bearing forming portion 25 (bearing portion 8), and their peripheral portions can be reduced as much as possible during blow molding. can be suppressed. As a result, damage to the bearing portion 8 can be suppressed, and durability can be improved.

In addition, the outer wall portion 6 is provided with a projecting portion 31 protruding outward in the lateral width direction of the outer wall portion 6 in the vicinity of (the opening of) the outer wall side bearing-constituting portion 23, thereby closing the display device. 1 are stacked, the protrusion 31 of the upper display tool 1 is inserted into the opening of the outer wall side bearing structure 23 of the lower display tool 1, and the protrusion 31 of the lower display tool 1 , to be inserted into the opening of the outer wall-side bearing-constituting portion 23 of the upper display tool 1 . Therefore, it is possible to prevent positional deviation of the display devices 1 in the horizontal direction when stacking the display devices 1 in the closed state by utilizing the outward opening shape of the outer wall-side bearing-constituting portion 23 . can.

Further, in the present embodiment, the end portion of the inner wall side bearing forming portion 25 on the tip end side in the projecting direction is chamfered. Furthermore, the connecting portion between the inner wall side bearing forming portion 25 and the inner wall base plate portion 24 is chamfered. For this reason, for example, a thin portion is formed in the bearing portion 8 (the inner wall side bearing-constituting portion 25) and its peripheral edge portion during blow molding, as compared with the case where the corner portion is provided in the bearing portion 8 (inner wall side bearing-constituting portion 25) and its peripheral edge portion. Such situations can be prevented. Therefore, the effects of suppressing damage to the bearing portion 8 and improving durability can be achieved more reliably.

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-described embodiment, four bearing portions 8 are provided in the first display member 2, but the number, arrangement, etc. of the bearing portions 8 can be changed as appropriate. Moreover, not only the bearing portion 8 having the connecting portion 21 but also the bearing portion 8 not including the connecting portion 21 (consisting of only the inner wall side bearing forming portion 25) may be provided. Further, the four bearing portions 8 provided in the first display member 2 are provided relatively close to each other, and the two bearing portions 8 of the first display member 2 and the second display member 3 are provided by one shaft member 4. and the two bearing portions 8 of .

(b) In the above-described embodiment, an inner protruding portion protruding toward the shaft member 4 inserted through the bearing portion 8 is provided at a position spaced apart from the pair of support wall portions 11 in the connecting wall portion 13 of the bearing portion 8. You can do it. In this case, the first display member 2 and the shaft member 4 inserted through the shaft hole 12 of the bearing portion 8 of the second display member 3 are supported by the peripheral edge portion of the shaft hole 12 and are supported by the inner protruding portion. can also be supported. In addition, the inner protruding portion is provided over the entire circumferential direction of the connecting wall portion 13, and in the extending direction of the shaft member 4, the inner protruding portion is larger than the support wall portion 11 provided with the shaft hole 12. It is good also as being comprised widely. The inner protruding portion formed at the same time as the bearing portion 8 during blow molding has an outer surface that protrudes toward the inner side of the bearing portion 8 with respect to the general portion of the connecting wall portion 13 of the bearing portion 8. Formed with concave sides.

As described above, when the bearing portion 8 is provided with the inner projecting portion, the portion of the bearing portion 8 capable of supporting the shaft member 4 can be increased. That is, in the hollow bearing portion 8, the inner protruding portion is brought into contact with the shaft member 4 not only at the periphery of the pair of shaft holes 12 but also at the position between the pair of shaft holes 12 (support wall portions 11). The shaft member 4 can also be supported by the inner protruding portion. In particular, in the extending direction of the shaft member 4 , the shaft member 4 is supported by the inner protruding portion that can be formed wider than the thickness of the support wall portion 11 , so that the shaft member 4 can be further supported by the bearing portion 8 . can definitely 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 8 , thereby suppressing damage to the bearing portion 8 . can be done. As a result, the durability of the bearing portion 8 can be improved.

In addition, the inner projecting portion may act as a guide for a drilling jig when forming the shaft hole 12 in the bearing portion 8 or as a guide for the shaft member 4 when inserting the shaft member 4 into the bearing portion 8. It can be expected, and the workability can be improved. Further, a concave portion is formed on the outer surface side of the bearing portion 8 at a position corresponding to the inner protruded portion. Therefore, for example, when the pair of display members 2 and 3 are opened and closed, when the outer surface of the bearing portion 8 and the other display member 2 and 3 come into contact with each other, the outer surface of the bearing portion 8 and the other display member 2, 3 can be reduced, and the opening/closing operability of the display device 1 can be improved.

It should be noted that the design may be such that the inner projecting portion abuts against the shaft member 4 at the manufacturing stage of the display device 1, and the inner projecting shape may be designed to abut against the shaft member 4 when the peripheral portion of the shaft hole 12 is slightly worn due to repeated use of the display device 1. contacts the shaft member 4 (even in the manufacturing stage, if the shaft member 4 is deformed, the inner projecting portion contacts 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 27 from the second display member 3 may be omitted. Furthermore, for example, the shaft allowance groove 9 of the first display member 2 is formed slightly deeper so that the bearing portion 8 of the first display member 2 is accommodated within the inner range of the shaft allowance groove 9, and the bearing of the second display member 3 is formed. The projection length of the portion 8 is slightly lengthened, and the bearing portion 8 of the second display member 3 is inserted into the shaft allowance groove 9 of the first display member 2, so that the first display member 2 and the second display member 3 The shaft member 4 may be used to connect between the bearing portions 8 of .

In addition, in the above-mentioned means 1, "the connecting portion is arranged such that the first display member and the second display member are positioned closer to each other than a portion of the inner wall portion adjacent to the connecting portion in the axial direction of the shaft member. "is located on the inner side in the direction between and" means that the shaft member 4 is provided in the shaft allowance groove 9 provided in the inner wall portion 7, and the connecting portion 21 is positioned in the shaft allowance groove 9 It is intended to include a configuration in which the inner wall portion 7 (for example, the inner side surface of the inner wall base plate portion 24) is positioned on the outer side.

In other words, the shaft allowance groove 9 may be regarded as part of (the structure of) the inner wall portion 7 . In this case, it can be said that the connecting portion 21 is positioned inward of the inner wall portion 7 (shaft allowance groove 9). Incidentally, the shaft allowance groove 9 may be omitted.

DESCRIPTION OF SYMBOLS 1... Indicator, 2... 1st indicator member, 3... 2nd indicator member, 4... Shaft member, 6... Outer wall part, 7... Inner wall part, 8... Bearing part, 9... Shaft allowance groove, 11... Support wall Part 12... Shaft hole 13... Connection wall part 21... Connection part 22... Outer wall base plate part 23... Outer wall side bearing component part 24... Inner wall base plate part 25... Inner wall side bearing component part 27... Display plate, 31... Protrusion, 32... Position deviation regulation protrusion.

Claims (4)

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
Each of the first display member and the second display member includes a pair of outer wall portions and an inner wall portion facing each other while being spaced apart, and a bearing portion that supports the shaft member;
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 includes a connecting portion connecting a portion of the outer wall portion that bulges toward the inner wall portion and the inner wall portion,
The connecting portion is located on an inner side of the inner wall portion, which is a direction between the first display member and the second display member, relative to a portion adjacent to the connecting portion in the axial direction of the shaft member. is located in
the bearing portion of the first display member protrudes inward from the inner wall portion of the first display member, and
The bearing portion of the second display member protrudes inward from the inner wall portion of the second display member, and
The outer wall portion includes a substantially plate-shaped outer wall base plate portion, and the outer wall base plate portion protrudes inward from the outer wall base plate portion, and is closed on the tip side in the projecting direction, and extends outward on the side opposite to the inward direction. and a substantially cylindrical outer wall side bearing configuration portion that opens,
The inner wall portion includes a substantially plate-shaped inner wall base plate portion and an inner wall side bearing forming portion projecting inward from the inner wall base plate portion,
At least a tip end portion of the outer wall side bearing structure portion in a protruding direction is connected to the inner wall side bearing structure portion, and a connection portion between the outer wall side bearing structure portion and the inner wall side bearing structure portion constitutes the connection portion,
The bearing portion includes a pair of support wall portions and a connection wall portion that connects the outer peripheral portions of the pair of support wall portions,
The connecting portion includes the pair of support wall portions and the connecting wall portion,
A display device , wherein the shaft hole through which the shaft member can be inserted is provided at a position of the pair of support wall portions including the portion where the connecting portion is provided . a closed state in which the inner wall portion of the first display member and the inner wall portion of the second display member face each other, approach or contact each other and extend substantially parallel to each other;
The lower side of the first display member is configured to be able to change to an open state in which it is separated from the lower side of the second display member,
A protrusion protruding outward from the outer wall base plate portion is provided at a position of the outer wall portion adjacent to or close to the outer wall side bearing forming portion in the axial direction of the shaft member,
When the display devices in the closed state are laid down and stacked vertically, the protrusion of the first display member or the second display member arranged upward among the lower display devices 2. The display according to claim 1, wherein the display member is inserted inside the outer wall side bearing structure portion of the first display member or the second display member arranged downward among the display devices on the upper side. equipment. A plate installation portion in which a display plate on which predetermined information is written is installed is provided on the outer side surface of the outer wall portion. 3. The indicator according to claim 1, wherein the opening of the bearing structure is closed. Of the outer wall portion, the protrusion is provided at a line-symmetrical position of the outer wall side bearing-constituting portion centering on the lateral width direction central portion of the first display member and the second display member,
When the display devices in the closed state are laid down and stacked vertically in the same direction, the first display member or the second display member arranged upward among the lower display devices 3. A protrusion is inserted into the outer wall side bearing forming portion of the first display member or the second display member arranged downward of the upper display member. The indicated display device.

Images