JP6703680B1 - Warning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a warning device which can be easily expanded and contracted by a drive mechanism. An expansion/contraction mechanism having a first arm (102a) and a second arm (102b) connected to the first arm (102a) so that a relative angle with respect to the first arm (102a) can be changed. (100), a drive mechanism (20) for supplying a driving force to the first arm (102a) and the second arm (102b), and the extension/contraction mechanism in the vertical direction according to the extension/contraction operation of the extension/contraction mechanism (100). A warning device for a parking lot including a telescopic member (70). [Selection diagram] Figure 1

Description

The present invention relates to a warning device.

Patent Document 1 describes a cone type marker for roads. Patent Document 1 describes a technique for manually retracting and storing a conical portion in a storage chamber of a base portion in a compact manner.

However, Patent Document 1 does not disclose a technique of expanding and contracting a traffic cone by a drive mechanism.

JP, 10-147914, A

The present invention provides a base having a first surface provided on the first direction side and facing the ground surface, a base provided on a second direction side opposite to the first direction, and a first arm. , said first have a second arm connected to the relative angle can be changed in the first arm with respect to the arm, the possible extension mechanism extending in a second direction, the driving force to the extendable mechanism A drive mechanism for supplying the first moving part, which is provided in the concave portion when the expansion/contraction mechanism is not expanded, and is moved to the second direction side when the expansion/contraction mechanism is expanded, and the expansion/contraction mechanism is not expanded. And a second moving portion that is provided in the concave portion outside the first moving portion and that engages with the first moving portion and moves in the second direction when the expansion mechanism expands. Configured as a warning device for parking lots.

The present invention solves the above problems by the following solution means.

A warning device according to a first aspect of the present invention includes a first surface provided on a first direction side and facing a ground surface, and a concave frame provided on a second direction side opposite to the first direction. A base having a section , a first arm, and a second arm paired with the first arm connected to the first arm such that a relative angle to the first arm can be changed, A telescopic mechanism that is extendable in the second direction, a drive mechanism that engages with the telescopic mechanism and supplies a drive force to the telescopic mechanism, and a second-direction-side end of the telescopic mechanism are connected to the drive mechanism. When the telescopic mechanism is not extended, it is provided in the frame portion of the base, and when the telescopic mechanism is extended, a driving force is applied from the end portion on the second direction side of the telescopic mechanism along with the extension of the telescopic mechanism. is supplied, a first frame member to move in the second direction so that the distance gradually increases with the base, the base outside of the first frame member when said extension mechanism is not stretched provided the frame part, when the extension mechanism is stretched, the with the extension of the telescopic mechanism, the first frame member by moving the engaging the first frame member to said second direction It has a second frame member provided in the first direction side than the first frame member has a first engagement portion provided at an end of the first direction, the second The frame member has a second engaging portion provided at an end portion on the second direction side, and the second frame member has the second engaging portion when the expansion mechanism extends. The warning device for a parking lot is configured to be movable in the second direction by being engaged with the first engaging portion of the frame member .

FIG. 1 is a perspective view of a warning device according to an embodiment of the present invention in an extended state (first state), and a cover is not shown. FIG. 2 is a perspective view of the warning device in a contracted state (second state), and the upper lid and the cover are not shown. FIG. 3 is an enlarged vertical sectional view of a part of the base of the warning device. FIG. 4 is a perspective view of a part of the extension/contraction mechanism and the drive mechanism in the extended state (first state). FIG. 5 is a perspective view of a part of the expansion/contraction mechanism and the drive mechanism in the contracted state (second state). FIG. 6 is a schematic configuration diagram of a drive mechanism of the warning device. FIG. 7 is a plan view showing an outline of the drive mechanism (pinion and rack) of the warning device, FIG. 7(A) shows an extended state (first state), and FIG. 7(B) shows a contracted state ( The second state). FIG. 8 is a cross-sectional view showing the configuration of the expansion/contraction member of the warning device, FIG. 6(A) shows the expansion/contraction member in the contracted state (second state), and FIG. 6(B) shows the expanded state (first state). (State) represents the elastic member. FIG. 9 is an enlarged view showing a part of the upper end of the IX-IX cross section of FIG. 1. 10A and 10B are schematic configuration diagrams for explaining the release mechanism, FIG. 10A is a front view of the release mechanism, and FIG. 10B is a side view of the release mechanism. (B) is a side view of the release mechanism. FIG. 11 is a perspective view showing a telescopic mechanism and a drive mechanism of the warning device according to the first modification. FIG. 12 is a schematic configuration diagram showing a side surface of a lower end of the expansion mechanism and the drive mechanism according to the first modification. FIG. 13 is a diagram corresponding to FIG. 10A of the modified example 3 of the warning device. FIG. 14 is a block diagram showing a schematic configuration of the warning system according to the embodiment of the present invention. FIG. 15 is a schematic diagram for explaining the operation when contracting the expandable part in the expanded state. FIG. 16 is a diagram corresponding to FIG. 15 in which the expandable portion is in the contracted state. FIG. 17 is a block diagram showing a schematic configuration of the warning system according to the first modification. FIG. 18 is a plan view showing an example of the layout of a plurality of warning devices in the warning system according to Modification 1, and is for explaining the operation of transferring a control signal. FIG. 19 is a block diagram showing a schematic configuration of a warning system according to Modification 2.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the following embodiments are preferable examples, and are not intended to limit the scope of the present invention, its application, or its application. The configurations of the embodiments, modifications, and other examples described below may be combined with each other as long as the present invention can be implemented. In the following description, “upper”, “lower”, “left”, “right”, “front” and “rear” mean the directions described in the drawings unless otherwise specified.

In FIG. 18, this embodiment is an alarm system (S) including one warning device (10) and one remote controller (50) corresponding to the warning device (10).

<Overall configuration of warning device>
The parking space (2) of the parking lot (1) has a contract that only the user's vehicle (3) can park and other vehicles (vehicles other than the user's vehicle) cannot park. The warning device (10) is installed around the parking space (2) of the user's vehicle (3). For example, one or a plurality of warning devices (10) are installed near the boundary of the parking space (2). The warning device (10) prevents other vehicles from entering the parking space (2).

The warning device (10) is preferably movable and portable. The warning device (10) can be used by, for example, being placed (installed) on the ground of the parking lot (1). For example, as shown in FIGS. 1 to 3, the warning device (10) includes a base (11) installed in the parking lot (1) and a drive mechanism (20) provided in the base (11). , An expansion/contraction mechanism (100) that expands and contracts vertically by being driven by the drive mechanism (20), and an upper lid (73) to which an upper end of the expansion/contraction mechanism (100) is fixed. An elastic member (70) that expands and contracts in the vertical direction in accordance with the expansion and contraction operation of the.

<Base>
The base (11) includes a bottom plate (11b) and a base body (11a) installed on the upper surface of the bottom plate (11b). The base main body (11a) includes an outer frame (86) having a rectangular outer edge and a circular inner edge, and a circular tubular portion (18) standing upright from the inner edge of the outer frame (86). Prepare The drive mechanism (20), the expansion/contraction mechanism (100), and the expansion/contraction member (70) are arranged inside the tubular portion (18).

The bottom plate (11b) is formed in a rectangular shape having substantially the same shape as the base body (11a) in a plan view. The bottom plate (11b) has an installation portion (12), a plurality of bolt holes (15, 15,...) And a pedestal (85).

The installation portion (12) is a circular area located in the center inside the tubular portion (18). The installation part (12) includes a first board (16a), a second board (16b), a circuit board (84), a power supply (40), a plurality of columns (54, 54,...) And a through hole (13). A lid (14) is installed.

The first substrate (16a) is a rectangular plate-shaped member. The first substrate (16a) is arranged in the center of the installation portion (12) such that the long side of the first substrate (16a) faces the front-back direction. On the first substrate (16a), a pair of racks (21a, 21b) that are a part of the drive mechanism (20) and a telescopic mechanism (100) are installed.

The second substrate (16b) is a rectangular plate-shaped member whose long side is shorter than that of the first substrate (16a). The second board (16b) is located on the front left side of the first board (16a). The second substrate (16b) is arranged such that the long side of the second substrate (16b) is in contact with the long side of the first substrate (16a). A motor (26) which is a part of the drive mechanism (20) is installed on the second substrate (16b).

The substrates (16a, 16b) are fixed on the installation section (12) via a plurality of columnar support members (80, 80,... ). Specifically, each support member (80) is arranged at the four corners of the back surface of the substrate (16a, 16b). The support members (80) and the substrates (16a, 16b) are fixed by screws from the front side of the substrates (16a, 16b). The support member (80) and the bottom plate (11b) are fixed by screws from the back side of the bottom plate (11b). A space is formed between the substrate (16a, 16b) and the bottom plate ( 11b ) . Six gears (27a to 27f) that are a part of the drive mechanism (20) are arranged in this space.

The circuit board (84) is arranged in front of the first board (16a) and on the right side of the second board (16b). A control circuit and the like are mounted on the circuit board (84).

The power supply (40) is arranged behind the first substrate (16a). The power supply (40) has four batteries. The battery may be a rechargeable battery or a disposable battery. The power supply (40) supplies electric power to the motor (26). Parts such as batteries and batteries included in the power source are heavier than other members. Therefore, by providing the power source (40) inside the base (11), the center of gravity of the warning device (10) can be made closer (lower) to the ground. By lowering the center of gravity of the warning device (10), the warning device (10) is less likely to fall down due to wind even when the elastic member (70) is extended.

The pillars (54, 54,...) Are cylindrical metal parts fixed on the installation part (12). The pillars (54, 54,...) Are arranged so as to surround the boards (16a, 16b), the circuit board (84), and the power supply (40). The height position of the upper end of each pillar (54) is substantially the same as the height position of the lower end of the upper lid (73) when the expansion mechanism (100) is contracted.

For example, when the telescopic mechanism (100) is in a contracted state, the upper lid (73) is preferably supported by the columns (54, 54,... ). When the expansion mechanism (100) contracts and the upper lid (73) is supported by the columns (54, 54,...), the height of the upper lid (73) is the height of the upper end of the tubular portion (18). It is preferably slightly lower than the position. In each column (54), when the elastic member (70) is contracted and the upper lid (73) of the elastic member (70) is excessively pressed, the upper lid (73) is depressed into the base (11). To prevent

As shown in FIG. 6, the through hole (13) is provided in the installation portion (12). The through hole (13) is provided with a lid (14) for closing the through hole (13). The lid (14) is a plastic member and can be attached and detached from the through hole (13).

As shown in FIG. 3, the plurality of bolt holes (15, 15,...) Are provided at the four corners of the bottom plate (11b), respectively. Each bolt hole (15) is a hole into which a bolt (81) for fastening to the base body (11a) is inserted.

The pedestal (85) is formed to extend downward from the outer edge of the bottom plate (11b). For example, when the warning device (10) is installed on the ground of the parking lot (1), the pedestal (85) contacts the ground and supports the entire warning device (10). Since the position of the lower end of the pedestal (85) is not in the ground, the warning device (10) can be easily carried (moved).

Bolt holes (19) are formed at the four corners of the outer frame (86) of the base body (11a). The bolt hole (19) is a hole into which the bolt (81) is inserted from the bolt hole (15) of the bottom plate (11b). That is, the base body (11a) and the bottom plate (11b) are fastened by the bolts (81). A seal member (82) is sandwiched between the outer frame (86) and the bottom plate (11b). The seal member (82) is, for example, an elastic rubber packing. The seal member (82) is compressed by fastening each bolt (81). As a result, it is possible to prevent water from entering the joint between the base body (11a) and the bottom plate (11b).

The height position of the upper end of the cylindrical portion (18) of the base body (11a) is substantially the same as the height position of the upper lid (73) when the expansion mechanism (100) is contracted. The height position of the upper end of the tubular portion (18) is lower than the height position of the lower end of the vehicle body. An annular convex portion (87) that protrudes radially inward is formed at the upper end of the tubular portion (18).

The base (11) is preferably heavier than the expansion/contraction mechanism (100) by using a weight or the like. As a result, the center of gravity of the warning device (10) is lowered, and the fall of the warning device (10) can be suppressed.

The base (11) is preferably made of a material having higher rigidity than the elastic member (70). As a result, even if the vehicle (3) rides on the base (11), it is possible to prevent the base (11) from being damaged.

<Expansion/contraction mechanism>
As shown in FIGS. 4 and 5, the expansion/contraction mechanism (100) of the present embodiment is supported by the pair of racks (21a, 21b) of the drive mechanism (20). In the expansion/contraction mechanism (100) of this embodiment, a plurality of pairs of arms (107, 107,...) Are connected in a pantograph shape.

Specifically, the extension/contraction mechanism (100) includes a third arm unit (106a to 106c) arranged vertically and a second arm connecting shaft (rotatably connecting vertically adjacent arm units to each other). 111) and The telescopic mechanism (100) of the present embodiment further includes a connecting arm unit (108) above the first arm unit (106a) arranged in the upper stage.

Each arm unit (106) includes a pair of arms (107) and a first arm connecting shaft (110). The arms (102a-103b) of the arm units (106a-106c) are all the same length.

The first arm unit (106a) in the upper stage and the second arm unit (106b) in the middle stage each include a first arm (102a), a second arm (102b), and a rod-shaped first arm connecting shaft (110). Composed. A first shaft hole (114) is provided at the center of each of the first arm (102a) and the second arm (102b), and second shaft holes (115, 115) are provided at both ends.

The first arm (102a) and the second arm (102b) are connected to each other so that their relative angles can be changed. Specifically, each end of the first arm connecting shaft (110) is connected to the first shaft hole (114) of each of the first arm (102a) and the second arm (102b).

The third arm unit (106c) arranged in the lower stage includes a third arm (103a), a fourth arm (103b), and a first arm connecting shaft (110). A first shaft hole (114) is provided in the center of each of the third arm (103a) and the fourth arm (103b). A second shaft hole (115) is provided at one end of each of the third arm (103a) and the fourth arm (103b), and a fourth shaft hole (116) is provided at each of the other ends.

The third arm (103a) and the fourth arm (103b) are connected to each other so that their relative angles can be changed. Specifically, each end of the first arm connecting shaft (110) is connected to the first shaft hole (114) of each of the third arm (103a) and the fourth arm (103b).

The connecting arm unit (108) has a pair of arms (101) and a third arm connecting shaft (112).

The pair of arms (101) of the connecting arm unit (108) is half the length of the arms (102a to 103b) of the arm unit (106). The third arm connecting shaft (112) is a rod-shaped member having the same length as the first arm connecting shaft (110).

A second shaft hole (115) is formed at the lower ends of the pair of arms (101) of the connecting arm unit (108), and a third shaft hole (118) is formed at the upper end thereof.

The pair of arms (101) of the connecting arm unit (108) are rotatable with each other by connecting each end of the third arm connecting shaft (112) to each third shaft hole (118). ..

The first arm unit (106a) and the second arm unit (106b) are connected by two second arm connecting shafts (111, 111). The second arm connecting shaft (111) is a rod-shaped member having the same length as the first arm connecting shaft (110).

Specifically, one end of the second arm connecting shaft (111) is connected to the second shaft hole (115) on the lower end side of the first arm (102a) of the first arm unit (106a), and the other end is The second arm unit (106b) is connected to the second shaft hole (115) on the upper end side of the second arm (102b). Similarly, one end of the second arm connecting shaft (111) is connected to the second shaft hole (115) on the lower end side of the second arm (102b) of the first arm unit (106a), and the other end is the second It is connected to the second shaft hole (115) on the upper end side of the first arm (102a) of the arm unit (106b).

The second arm unit (106b) and the third arm unit (106c) are connected by two second arm connecting shafts (111, 111).

Specifically, one end of the second arm connecting shaft (111) is connected to the second shaft hole (115) on the lower end side of the first arm (102a) of the second arm unit (106b), and the other end is the first. It is connected to the second shaft hole (115) of the third arm (103a) of the three-arm unit (106c). Similarly, one end of the second arm connecting shaft (111) is connected to the second shaft hole (115) on the lower end side of the second arm (102b) of the second arm unit (106b), and the other end is the third shaft hole. It is connected to the second shaft hole (115) of the fourth arm (103b) of the arm unit (106c).

The connecting arm unit (108) and the first arm unit (106a) are connected by two second arm connecting shafts (111, 111).

Specifically, one end of the second arm connecting shaft (111) is connected to the second shaft hole (115) of one arm (101a) of the connecting arm unit (108), and the other end is connected to the first arm unit ( 106a) is connected to the second shaft hole (115) on the upper end side of the second arm (102b). Similarly, one end of the second arm connecting shaft (111) is connected to the second shaft hole (115) of the other arm (101b) of the connecting arm unit (108), and the other end is connected to the first arm unit (106a). ) Is connected to the second shaft hole (115) on the upper end side of the first arm (102a).

As described above, in the expansion/contraction mechanism (100), the plurality of vertically adjacent arm units (106) are rotatably connected to each other. Therefore, when the angle formed by the pair of arms (107) forming the arm unit (106) is expanded/contracted (changed), the height of the expansion/contraction mechanism (100) is changed. Specifically, as the angle formed by the pair of arms (107) expands, the height of the extension/contraction mechanism (100) decreases, and when the angle formed by the pair of arms (107) decreases, the height of the extension/contraction mechanism (100) decreases. Get higher

<Drive mechanism>
As shown in FIGS. 6 and 7, the drive mechanism (20) of the present embodiment includes a pair of racks (21a, 21b), a pinion (23), and a drive section (25).

The racks (21a, 21b) are metal members formed in a substantially rectangular parallelepiped shape. The racks (21a, 21b) are installed on the first substrate (16a). The racks (21a, 21b) each include a fitting portion (90a, 90b), an arm connecting hole (22a, 22b), and a tooth portion (24a, 24b).

The fitting portions (90a, 90b) are provided on the bottom surface of the rack (21a, 21b) so as to extend in the longitudinal direction so that the vertical cross section has a convex shape. Here, on the first substrate (16a), a pair of rack grooves (29a, 29b) arranged in parallel are formed in the longitudinal direction of the first substrate (16a). The fitting portion (90a) of one rack (21a) fits into one rack groove (29a), and the fitting portion (90b) of the other rack (21b) fits into the other rack groove (29b). Then, the pair of racks (21a, 21b) are attached to the first substrate (16a). As a result, the pair of racks (29a, 29b) move so as to be guided by the rack grooves (29a, 29b).

Of the arm connecting holes (22a, 22b), one arm connecting hole (22a) is provided on the right end side of the rear surface of the one rack (21a). The arm connection hole (22a) is connected to the fourth shaft hole (116) of the third arm (103a) of the third arm unit (106c) by the pin (39). The other arm connection hole (22b) is provided on the left end side of the front surface of the other rack (21b). The arm connecting hole (22b) is connected to the fourth shaft hole (116) of the fourth arm (103b) of the third arm unit (106c) by the pin (39). As a result, the pair of racks (21a, 21b) reciprocate in the direction in which the pair of arms (107) of the arm unit (106) tilt.

The tooth parts (24a, 24b) are parts that mesh with the pinion (23). The one tooth portion (24a) is formed on the front surface of the one rack (21a). The other tooth portion (24b) is formed on the rear surface of the other rack (21b). That is, the tooth portions (24a, 24b) are formed so as to face each other.

The pinion (23) is arranged between the pair of racks (21a, 21b) so as to mesh with each of the tooth portions (24a, 24b) of the racks (21a, 21b). As the pinion (23) rotates, the pair of racks (21a, 21b) are guided on the rack grooves (29a, 29b), respectively. Specifically, when the pinion (23) rotates clockwise, the pair of racks (21a, 21b) are separated from each other. On the other hand, when the pinion (23) rotates counterclockwise, the pair of racks (21a, 21b) approach each other.

As shown in FIG. 6, the drive unit (25) includes a motor (26), a plurality of gears (27a to 27f), and a plurality of rotating shafts (28a to 28d).

The motor (26) is fixed on the second substrate (16b). The motor (26) of this embodiment is a stepping motor. The first rotating shaft (28a) of the motor (26) extends downward from a through hole provided in the second substrate (16b).

The gears (27a to 27f) are arranged between the base plates (16a, 16b) and the bottom plate ( 11b ) . The gears (27a to 27f) are arranged such that the end faces in the axial direction face the back side of the base (11). Of the gears (27a to 27f), the center of the rotation shaft of the first gear (27a) is fixed to the first rotation shaft (28a) of the motor (26). That is, the first gear (27a) rotates according to the first rotation shaft (28a) of the motor (26). The second gear (27b) and the third gear (27c) are fixed to the same second rotating shaft (28b), and the second gear (27b) is arranged above the third gear (27c). The fifth gear (27e) and the fourth gear (27d) are fixed to the same third rotating shaft (28c), and the fifth gear (27e) is arranged above the fourth gear (27d). The sixth gear (27f) and the pinion (23) are fixed to the same fourth rotating shaft (28d), and the sixth gear (27f) is arranged below the pinion (23). In the drive unit (25), the first gear (27a) meshes with the second gear (27b), the third gear (27c) meshes with the fourth gear (27d), and the fifth gear (27e). ) And the sixth gear (27f) mesh with each other. Thus, the drive unit (25) is configured to transmit the drive of the first rotating shaft (28a) by the motor (26) to the pinion (23) via the gears (27a to 27f).

As shown in FIG. 7, when the motor (26) drives the first rotating shaft (28a), the pair of racks (21a, 21b) are guided by the rack grooves (29a, 29b) and move. Therefore, the angle formed by the pair of arms (103) of the third arm unit (106c) connected to the pair of racks (21a, 21b) changes. As a result, the tilt angles of the arms (101a to 103b) of the extension/contraction mechanism (100) change, and the height of the extension/contraction mechanism (100) changes accordingly.

More specifically, when the motor (26) drives the first rotation shaft (28a) in the first rotation direction, the pinion (23) rotates so that the pair of racks (21a, 21b) approach each other. At this time, the angle formed by the pair of arms (103) of the third arm unit (106c) is reduced. Therefore, the tilt angles of all the arms (101a to 103b) with respect to the horizontal plane become large by tilting. Therefore, the height of the expansion/contraction mechanism (100) is increased, and the expansion/contraction member (70) is completely extended. This state is also called a first state or a warning state.

On the other hand, when the motor (26) drives the first rotation shaft (28a) in the second rotation direction opposite to the first rotation direction, the pinion (23) separates the pair of racks (21a, 21b) from each other. Rotate to. At this time, the angle formed by the pair of arms (103) of the third arm unit (106c) is expanded. Therefore, the tilt angles of the arms (101a to 103b) with respect to the horizontal plane are reduced by tilting all the arms (101a to 103b). Therefore, the height of the expansion/contraction mechanism (100) is reduced, and the expansion/contraction member (70) is in a completely contracted state. This state is also called a second state or a non-warning state.

As described above, when the motor (26) drives the first rotating shaft (28a), the pinion (23) switches between a pair of racks (21a, 21b) when they are separated from each other, and an operation of bringing them closer to each other. Thereby, the extension/contraction mechanism (100) can be switched between the first state and the second state. Further, since the motor (26) is a stepping motor, it is possible to maintain the first state, that is, the state in which the elastic member (70) is completely extended.

<Elastic member>
As shown in FIG. 1, the elastic member (70) is formed into a hollow conical shape when expanded. On the other hand, the retractable member (70) is housed inside the tubular portion (18) of the base (11) when contracted. An expansion/contraction mechanism (100) is installed inside the expansion/contraction member (70), and the expansion/contraction member (70) is configured to expand and contract in the vertical direction as the expansion/contraction mechanism (100) expands and contracts.

As shown in FIGS. 8 and 9, the elastic member (70) includes a plurality of frames (74, 74,...), a plurality of rings (75, 75,...) And a plurality of covers (72, 72,. And an upper lid (73) which is the top.

For example, six frames (74, 74,...) Are arranged at equal intervals on a concentric circle centered on the expansion/contraction mechanism (100). Further, the six arranged frames (74, 74,...) Are arranged so as to overlap in a plurality of stages. The diameter of an imaginary circle connecting these six arranged frames (74, 74,... 74) is different in each step.

Each frame (74) is a plate-shaped member having a substantially Z-shaped vertical section. Each frame (74) has a vertical wall (74a) that extends in the vertical direction, an upper end protrusion (74b) that protrudes radially inward from the upper end of the vertical wall (74a), and a diameter from the lower end of the vertical wall (74a). A lower end protrusion (74c) protruding outward in the direction. The upper end convex portion (74b) is formed, for example, such that the upper end of the vertical wall (74a) is bent inward in the radial direction. The lower end protrusion (74c) is formed, for example, such that the lower end of the vertical wall (74a) is bent outward in the radial direction. Vertical lengths of the vertical walls (74a) of the frames (74, 74,...) Are all formed to be the same.

The frames (74, 74,...) Are arranged so that the vertical wall (74a) of each frame (74) is displaced in the radial direction. Specifically, when the elastic member (70) is in the contracted state (the state shown in FIG. 8A), the vertical walls (74a) of the plurality of frames (74) are aligned in the radial direction. In this state, a gap is formed between the vertically adjacent vertical walls (74a). The length of the upper end convex portion (74b) or the lower end convex portion (74c) is set to be within the radial gap between the vertical walls (74a). That is, of the frames (74) adjacent to each other in the radial direction, the tip of the upper end protrusion (74b) of the outer frame (74) contacts the base end of the upper end protrusion (74b) of the inner frame (74), The base end of the lower end protrusion (74c) of the frame (74) contacts the tip of the lower end protrusion (74c) of the outer frame (74). Therefore, when the elastic member (70) is in the contracted state, the upper ends of the frames (74) are substantially flush with each other.

On the other hand, in the stretched state of the elastic member (70) (state of FIG. 8(B)), the lower end convex portion (74c) of the inner frame (74) and the outer frame (of the frames (74) adjacent in the radial direction). The upper end convex portion (74b) of 74) is engaged with each other. That is, the vertical wall (74a) of the inner frame (74) is arranged so as to project above the vertical wall (74a) of the outer frame (74). For this reason, the six frames (74, 74,...) Arranged on the concentric circles are overlapped so that the diameter decreases from the lower end to the upper end of the expansion/contraction mechanism (100), so that the expansion/contraction member (70) has a conical shape. It is formed.

As shown in FIG. 3, when the elastic member (70) is in the stretched state, the lower end convex portion (74c) of the frame (74) located at the lower end is located at the upper end of the tubular portion (18) of the base (11). It is engaged with the annular convex portion (87).

As shown in FIG. 8, the ring (75) is composed of a flat annular flat surface portion (75a) and a cylindrical portion (75b) standing upright from the inner peripheral edge of the flat surface portion (75a). That is, the ring (75) has an L-shaped vertical cross section.

The width of the flat surface portion (75a) of the ring (75) is substantially the same as the width of the lower end convex portion (74c) of the frame (74). The plane portion (75a) is in contact with the lower end protrusions (74c) of the six frames (74, 74,...) Arranged on the concentric circles.

The height of the cylindrical portion (75b) of the ring (75) is almost the same as the width of the flat surface portion (75a) of the ring (75). The inner surface of the cylindrical portion (75b) is in contact with the outer surfaces of the vertical walls (74a) of the six frames (74, 74,...) Arranged concentrically.

The rings (75) are arranged so as to be sandwiched between the frames (74) that are vertically adjacent to each other when the elastic member (70) is in the stretched state. Specifically, when the elastic member (70) is in the stretched state, the flat surface portion (75a) of each ring (75) and the lower end convex portion (74c) of the upper frame (74) vertically adjacent to each other The frame (74) is supported so as to be sandwiched between the upper end convex portion (74b). This allows each ring (75) to be held horizontally. Each ring (75) is in contact with the lower end projection (74c) of each frame (74) and the vertical wall (74a). Therefore, each ring (75) can be stably held on the frame (74, 74,... ). Further, each ring (75) has an L-shaped vertical cross section, so that the strength of the elastic member (70) is increased.

As shown in FIGS. 1 and 9, the upper lid (73) is a disk-shaped metal member. The upper end protrusions (74b) of a plurality of innermost frames (74, 74,...) Of the frames (74) arranged in the radial direction are fixed to the edge of the back surface of the upper lid (73).

A connecting portion (73a) is provided at the center of the back surface of the upper lid (73). The connecting portion (73a) is rotatably connected to the third arm connecting shaft (112) of the connecting arm unit (108) located at the upper end of the expansion/contraction mechanism (100).

The upper lid (73) is positioned higher than the lower end of the vehicle body when the elastic member (70) is in the first state. When the elastic member (70) is in the second state, the upper lid (73) is located at a position substantially the same as the height of the tubular portion (18), that is, a position lower than the lower end of the vehicle body.

The covers (72, 72,...) Are sheet-like members having flexibility and waterproofness. Each cover (72) is formed in a tubular shape, and is configured to cover the side surface of each frame (74). Specifically, when the elastic member (70) is in the stretched state, the upper end of the cover (72) is located at the upper end convex portion (74b) of the upper frame (74) that is vertically adjacent to the lower frame (74). The lower end of the cover (72) is joined to the upper end convex part (74b) of FIG.

With such a configuration, the covers (72, 72,...) Are arranged above the respective frames (74) when the elastic member (70) is in the contracted state. Therefore, when the elastic member (70) expands and contracts, it does not hinder the vertical movement of each frame (74). Therefore, the elastic member (70) can be smoothly expanded and contracted. Further, the covers (72, 72,...) Can prevent foreign matter from entering the elastic member (70). Therefore, failure of the warning device (10) can be prevented.

The expansion/contraction mechanism (100) is preferably made of a material having a lower rigidity than the base (11). In addition, it is preferable that the expansion/contraction mechanism (100) is made of a material having higher elasticity than the base (11). As a result, even if the vehicle hits the elastic member (70), damage to the elastic member (70) and the vehicle (3) can be suppressed.

<Operation of elastic member>
Hereinafter, the operation when the elastic member (70) shifts from the second state (non-warning state) to the first state (warning state), and the elastic member (70) moves from the first state (warning state) to the second state ( The operation when shifting to the (non-warning state) will be described.

When the motor (26) drives the first rotation shaft (28a) in the first rotation direction while the expansion/contraction member (70) is in the second state, the rotation of the first rotation shaft (28a) becomes the pinion (23). Transmitted. When the pinion (23) rotates, one rack (21a) on the rear side moves to the left and the other rack (21b) on the front side moves to the right. As a result, the distance between the lower ends of the pair of arms (103) of the third arm unit (106c) becomes narrow. That is, the pair of arms (107) of each arm unit (106) tilts so that the angle formed by the pair of arms (107) decreases.

At this time, the upper lid (73) of the elastic member (70) rises so as to be lifted by the connecting arm unit (108). As the upper lid (73) rises, the frame (74) connected to the back surface of the upper lid (73), the ring (75) placed on the lower end convex portion (74c) of the frame (74), and the frame are covered. The cover (72) rises. When the upper lid (73) moves by the same displacement as the height of the vertical wall (74a) of the frame (74), the lower end convex portion (74c) of the frame (74) fixed to the upper lid (73) is radially outward. Engage with the upper end convex portion (74b) of the frame (74) that was adjacent to. In this state, the frame (74) adjacent to the outside in the radial direction, the ring (75) placed on the lower end convex portion (74c) of the frame (74), and the cover (72) rise. To do.

As described above, when the expandable member (70) shifts from the second state to the first state, the plurality of frames (74, 74,...) Arranged so as to overlap in the radial direction are arranged from the inner side to the outer side in the radial direction. It rises in the order of. As a result, the elastic member (70) is in the first state when the elastic mechanism (100) is fully extended.

On the other hand, when the expansion member (70) is in the first state and the motor (26) drives the first rotation shaft (28a) in the second rotation direction, the rotation of the first rotation shaft (28a) is rotated by the pinion (23). Be transmitted to. When the pinion (23) rotates, the rear rack (21a) moves to the right and the front rack (21b) moves to the left. As a result, the distance between the lower ends of the pair of arms (103) of the third arm unit (106c) is increased. That is, the pair of arms (107) of each arm unit (106) tilts so that the angle formed by the pair of arms (107) increases.

At this time, the upper lid (73) of the elastic member (70) descends so as to be pulled by the connecting arm unit (108). With the lowering of the upper lid (73), all the frames (74) and the rings (75) descend.

First, the frames (74, 74,...) And the cover (72) located at the bottom are until the lower end protrusions (74c) of the frames (74, 74,...) Abut the upper surface of the bottom plate (11b). It stops when it descends. Subsequently, the upper lid (73) descends, and the frame (74, 74,...), the cover (72) and the ring (75) located at the second position from the bottom are each of the frames (74, 74,...). When the lower end convex portion (74c) descends until it comes into contact with the upper surface of the bottom plate (11b), it stands still.

As described above, when the elastic member (70) shifts from the first state to the second state, the plurality of frames (74, 74,...) Adjacent to each other in the vertical direction are arranged on the lower side (74). , 74,…) and descends to the bottom plate (11b). As a result, the elastic member (70) is in the second state when the elastic mechanism (100) is completely contracted.

When the elastic member (70) is in the second state, the upper surface of the upper lid (73) and the upper ends of the frames (74, 74,...) Are substantially flush with each other. Further, since the height position of the upper surface of the upper lid (73) and the height position of the tubular portion (18) are almost the same, the upper surface of the upper lid (73), the upper ends of the frames (74, 74,...) And the tubular portion (18). The upper end is almost flush. Further, the covers (72, 72,...) Cover the respective gaps between the frames (74, 74,...) Adjacent to each other in the radial direction. Therefore, even when the elastic member (70) is in the second state, it is possible to prevent foreign matter from entering the inside of the tubular portion (18).

<Other configurations>
<Release mechanism>
The release mechanism (300) is a mechanism for releasing the connection between the racks (21a, 21b) and the third arm unit (106c) by applying a predetermined pressure to the upper lid (73) of the expandable member (70). .. The release mechanism (300) is provided on the pair of racks (21a, 21b). In the following description, the release mechanism (300) of one rack (21a) will be described as a representative.

As shown in FIG. 10, the release mechanism (300) has a notch (302) formed at the longitudinal end of the rack (21a). The notch (302) extends in the front-rear direction of the rack (21a). The notch (302) extends from the longitudinal end surface (301) (right end surface in FIG. 10) of the rack (21a) so as to communicate with the arm coupling hole (22a). The axial center of the arm connection hole (22a) and the vertical center position of the notch (302) are at substantially the same height position. The vertical width h of the notch (302) is formed to be smaller than the diameter of the pin (39).

When a predetermined pressure acts on the upper lid (73) of the elastic member (70) downward, the pin (39) comes off the notch (302). As a result, the connection between the third arm (103a) and the rack (21a) is released. The details will be described below.

When the telescopic mechanism (100) extends, the pair of racks (21a, 21b) approach each other. At this time, the pin (39) receives the first force (F1) from the end surface (301) side of the rack (21a).

On the other hand, when a predetermined pressure is applied to the upper lid (73) of the elastic member (70) downward, the angle formed by the pair of arms (107) of the arm unit expands, and the pair of racks (21a, 21b) are separated from each other. Try to move to. As a result, a second force (F2) acts on the pin (39) in the direction toward the end surface (301) side of the rack (21a).

The first force (F1) is such a force that the pin (39) does not come out of the notch (302). On the other hand, the second force (F2) is such that the notch (302) is pushed by the pin (39) and elastically deforms so as to widen the width h, so that the pin (39) comes out of the notch (302). Power. In other words, the width h of the notch (302) and the elastic coefficient of the rack (21a) are such that the pin (39) comes out of the notch (302) when the second force (F2) acts on the pin (39). It is set.

By the above, when a predetermined pressure is applied downward to the upper lid (73) of the elastic member (70) and a force of the second force (F2) or more is applied to the pin (39), the rack (21a, 21b) and the third arm. Since the connection between the pair of arms (103) of the unit (106c) is released, the expansion mechanism (100) and the drive mechanism (20) can be prevented from being damaged.

<Manual mechanism>
As shown in FIG. 6, the drive mechanism (20) includes a manual mechanism (200) capable of manually expanding and contracting the expansion/contraction mechanism (100). In the present embodiment, the axis of the fourth rotating shaft (28d) directly connected to the pinion (23) substantially overlaps with the through hole (13) of the bottom plate (11b) when viewed from the bottom surface of the bottom plate (11b). The fourth rotation shaft (28d) projects from the rear surface side of the sixth gear (27f), and its tip is located near the through hole (13). That is, the tip of the fourth rotating shaft (28d) can be visually recognized from the outside with the lid (14) removed from the through hole (13). An engaging portion (201) with which a tool is engaged is provided on the lower surface of the fourth rotating shaft (28d). For example, the engaging part (201) is a hole formed in a hexagonal shape, and the tool is a hexagonal wrench bent in an L shape. When the user or the like engages the hexagonal wrench with the engaging portion (201) and rotates the hexagonal wrench, the fourth rotation shaft (28d) rotates, which in turn rotates the pinion (23).

Due to the rotation of the pinion (23), the pair of racks (21a, 21b) approach or separate from each other. This allows the expansion/contraction mechanism (100) to be expanded and contracted manually.

In particular, when the power of the battery (40) runs out when the elastic member (70) is in the expanded state, the motor (26) cannot contract the elastic member (70) unless the battery is replaced. .. However, in the present embodiment, the elastic member (70) can be contracted by using a tool manually. Therefore, it is possible to prevent the warning device (10) from interfering with the loading and unloading of the vehicle (3).

Further, since the motor (26) continues to hold the expanded state of the expansion mechanism (100), it is difficult to rotate the fourth rotation shaft (28d) with the tool while the power source (40) is in the ON state. Therefore, it is preferable to turn off the power source (40) to release the holding state of the motor (26) and then contract the telescopic member (70) by the manual mechanism (200).

-Alarm system configuration-
As shown in FIG. 14, the alarm system (S) of this embodiment includes a warning device (10) and a remote controller (50). The warning device (10) includes a first transmission/reception unit (41) and a control unit (46). In addition, the warning device (10) includes a telescopic position detection unit (42), a vehicle detection unit (43), an abnormality detection unit (44), an alarm unit (45), a battery remaining amount detection unit (55), and a battery remaining amount. A display unit (56) is provided.

<First transmitter>
The first transmission/reception unit (41) is a wireless communication unit and transmits/receives signals. The first transmission/reception unit (41) includes an antenna and the like, and is attached to the base (11). In the first transmitting/receiving unit (41), the transmitting unit and the receiving unit may be configured as separate parts. The first transmission/reception unit (41) receives a control signal output from the remote controller (50).

<Control part>
The warning device (10) includes a control unit (46). The control unit (46) is configured by using a microcomputer and a memory device (specifically, a semiconductor memory) that stores software for operating the microcomputer. The microcomputer and the memory device are mounted on the circuit board (84). The control section (46) controls the drive mechanism (20) based on the control signal received by the first transmission/reception section (41) (reception section). The control signal is, for example, a first control signal that is a signal for switching the contracted expansion/contraction member (70) to the expansion state (warning state for prohibiting entry of a vehicle) and the expansion/contraction member (70) in the expanded state. And a second control signal which is a signal for switching to a state (a non-warning state in which vehicle intrusion is not prohibited).

Specifically, when the first control signal is input to the first transmitting/receiving unit (41), the control unit (46) causes the drive mechanism (20) to switch the retractable member (70) to the extended state. To control. When the second control signal is input to the first transmission/reception unit (41), the control unit (46) controls the drive mechanism (20) to switch the stretchable member (70) in the stretched state to the contracted state.

<Remote controller>
As shown in FIG. 14, the remote controller (50) includes an operation unit (51) and a second transmission/reception unit (52). The operation section (51) has a switch or the like for selectively outputting the first control signal and the second control signal from the second transmission/reception section (52) of the remote controller (50). It is preferable that the operation section (51) includes a first button for transmitting the first control signal and a second button for transmitting the second control signal. The operation unit (51) may be, for example, a touch panel or the like displayed on a liquid crystal screen. The remote controller (50) may be integrated with a device such as a car navigation system of the vehicle (3) or may be a device such as a mobile phone or a smartphone.

The second transmission/reception unit (52) is a wireless communication unit and transmits/receives signals. The second transmitting/receiving unit (52) includes an antenna and the like, and is attached to the main body of the remote controller (50). In the second transmitting/receiving unit (52), the transmitting unit and the receiving unit may be configured as separate parts. The second transmission/reception unit (52) transmits the first control signal and the second control signal to the warning device (10) according to the operation of the operation unit (51).

<Battery level detector>
The battery level detector (55) detects the voltage value of the power supply (40). The battery level detector (55) is provided on the base (11). The battery level detector (55) is connected to a power circuit between the power source (40) and the motor (26). In this embodiment, since the motor (26) is a stepping motor, the second state cannot be maintained when the voltage of the power supply (40) becomes equal to or lower than the predetermined value. Therefore, the battery level detector (55) measures the voltage value of the power source (40) at regular intervals.

<Battery level indicator>
The battery level indicator (56) is provided at a position visible from the outside in the base body (11a). The battery level indicator (56) displays the voltage value of the power source (40) detected by the battery level detector (55). For example, the battery level indicator (56) lights up in green when the battery level detector (55) detects that the voltage of the power source (40) is sufficient. The battery level indicator (56) blinks in yellow when the battery level detector (55) detects that the voltage of the power supply (40) has dropped to around the predetermined value. The battery level indicator (56) blinks in red when the battery level detector (55) drops the voltage of the power source (40) below the predetermined value.

<Expansion/contraction position detector>
The expansion/contraction position detection unit (42) is arranged in the vicinity of the expansion/contraction member (70) and detects at which position (which state) the expansion/contraction member (70) is. By controlling the motor (26) while detecting the position of the expansion/contraction member (70) by the expansion/contraction position detection unit (42), the expansion/contraction member (70) can be reliably moved to the first state (warning state) or the second state (non-operation). You can stand still in the (warning state) position.

For example, the expansion/contraction position detection unit (42) includes a light emitting unit and a light receiving unit. One of the light emitting portion and the light receiving portion is provided near the upper lid (73) of the elastic member (70). The other of the light emitting unit and the light receiving unit is provided near the base (11). The light receiving unit receives the light emitted from the light emitting unit. The height of the elastic member can be detected from the time difference between the first time point when the light emitting section emits light and the second time point when the light receiving section receives the light. This makes it possible to detect whether the elastic member is expanding or contracting.

The expansion/contraction position detection unit (42) may detect the height of the expansion/contraction member (70) based on a change in the capacitance of the expansion/contraction member. The expansion/contraction position detection unit (42) may be one or two or more proximity sensors that detect the height of the expansion/contraction member (70).

<Vehicle detector>
The vehicle detection unit (43) is installed on the upper surface of the base (11). The vehicle detection unit (43) is composed of, for example, a proximity sensor. For example, when the vehicle (3) is above the base (11) when the telescopic member (70) is in a contracted state or when the telescopic member (70) is performing an extension operation, the vehicle detection unit. (43) detects a vehicle (3) which is a near object.

When the vehicle detection unit (43) detects the vehicle (3), if the elastic member (70) continues the extension operation, the vehicle (3) and the elastic member (70) may collide. Therefore, when the vehicle detection section (43) detects the vehicle (3), the control section (46) controls the drive mechanism (20) to prohibit the extension operation of the expansion/contraction member (70). Accordingly, when the user's vehicle (3) is present above the warning device (10), it is possible to prevent the expansion/contraction member (70) from expanding due to an operation error of the user (vehicle driver).

Further, when a predetermined time has passed after the detection state in which the vehicle detection unit (43) is detecting the vehicle (3) is changed to the non-detection state in which the vehicle (3) is not detected, the control unit (46) May extend the elastic member (70) by controlling the drive mechanism (20). Thereby, after the user leaves the vehicle (3) from the parking space (2) and after the vehicle (3) enters the parking space (2), the warning device (10) is automatically set to the warning state. be able to.

When the state in which the vehicle detection unit (43) detects the vehicle (3) continues for a predetermined time or longer, the control unit (46) determines that the vehicle detection unit (43) has detected the vehicle (3) by the user ( It is preferable to notify the vehicle driver). Based on this notification, the driver can recognize that the vehicle (3) is above the warning device (10) and the parking position is inappropriate. Specifically, when the vehicle detection section (43) detects the vehicle (3), the control section (46) transmits a signal to that effect from the first transmission/reception section (41). A signal indicating that the vehicle detection section (43) has detected the vehicle (3) is received by a transmission/reception section (not shown) of the vehicle (3). A car navigation system (not shown) of the vehicle (3) displays information indicating that the vehicle detection unit (43) has detected the vehicle (3). This allows the driver to re-park the vehicle (3) in the proper position.

<Abnormality detection part>
The abnormality detection section (44) detects an abnormal state around the warning device (10) and the warning device (10). Here, the abnormality of the warning device (10) means, for example, when the warning device (10) is moved to another place due to theft or the like. The abnormality detection unit (44) includes, for example, an acceleration sensor (not shown), and detects vibration when the warning device (10) is moved.

The warning device (10) may be moved by the user. Therefore, it is preferable that the abnormality detection unit (44) can detect the case of being moved by the user and the case of being moved by a person other than the user separately.

When the user moves the warning device (10), the warning device (10) is normally contracted by operating the remote controller (50) before that. Therefore, when the abnormality detection unit (44) detects that the warning device (10) is in the contracted state and the warning device (10) has moved, the warning device (10) notifies the mobile terminal of the user. Emits a first signal.

When a person other than the user steals the warning device (10), the extended warning device (10) is forced to be carried around. Therefore, when the abnormality detection unit (44) detects that the warning device (10) is in the stretched state and the warning device (10) has moved, it causes the warning unit (45) to emit light or sound. Send a second signal. The second signal is a signal emitted when the degree of abnormality is larger than that of the first signal.

The abnormal state around the warning device (10) includes, for example, another vehicle parked in a parking space, and some object comes into contact with the telescopic member (70).

The alarm unit (45) emits light or sound or sends a signal indicating an alarm to the user's mobile terminal when the abnormality detection unit (44) detects any abnormality. This allows the user to quickly grasp the warning device (10) and the abnormal state around the warning device (10).

-Alarm system operation-
When the user's vehicle (3) is not parked in the parking space (2), the expansion/contraction member (70) of the warning device (10) installed around the parking space (2) is in an extended state. This can prevent other vehicles from entering the parking space (2). When the user's vehicle (3) returns to the parking space (2), the user operates the remote controller (50) from inside the vehicle and transmits a second control signal (a signal for switching to the contracted state) ( See FIG. 15.). When the second control signal is received by the first transmission/reception unit (41) of the warning device (10), the control unit (46) controls the drive mechanism (20) to drive the motor (26), and the expansion/contraction mechanism. (100) contracts from the state of FIG. 4 to the state of FIG. Along with this, the elastic member (70) contracts from the state of FIG. 1 to the state of FIG. 2, and the elastic member (70) is housed in the tubular portion (18) of the base (11). In this state, it is preferable that the position of the upper lid (73) of the elastic member (70) coincide with the upper end of the tubular portion (18) or be lower than the upper end.

With the above operation, as shown in FIG. 16, the user can easily lower the height of the warning device (10) from inside the vehicle, and the vehicle (3) can pass above the warning device (10). In this way, the user dismounts and goes to the warning device and contracts the warning device, or the user dismounts and goes to the warning device and moves the warning device from the boundary of the parking space (2) to another place. You can park in the parking space (2) without letting it go. While the vehicle is parked in the parking space (2), the elastic member (70) may be kept in the contracted state.

On the other hand, when the vehicle (3) is taken out of the parking space (2), the vehicle (3) passes above the contracted warning device (10) in the same manner as when parking. After that, the user operates the remote controller (50) from the inside of the vehicle to transmit the first control signal (a signal for switching to the expanded state). When the first control signal is received by the first transmission/reception unit (41) of the warning device (10), the control unit (46) controls the drive mechanism (20) to control the motor (26) and the extension mechanism. (100) extends from the state of FIG. 5 to the state of FIG. Along with this, the elastic member (70) also extends from the state of FIG. 2 to the state of FIG. 1, and the elastic member (70) extends above the base (11).

With the above operation, as shown in FIG. 15, the user can easily increase the height of the warning device (10) from inside the vehicle. In this way, the user dismounts and goes to the warning device (10) and extends the warning device (10), or the user dismounts and goes to the warning device (10) and parks the warning device (10). It is possible to prevent other vehicles from entering the parking space (2) without permission without moving the vehicle to the boundary line of (2).

Assuming that the time until the elastic member (70) in the contracted state reaches the expanded state is t1 and the time until the elastic member (70) in the expanded state reaches the contracted state is t2, the control unit (46) determines that the time t2 is It is preferable to control the expansion and contraction of the expansion and contraction member (70) so as to be shorter than the time t1. For example, t2 is less than 5 seconds and t1 is set to 5 seconds or more.

By setting t2<t1, the elastic member (70) can be quickly switched to the contracted state. As a result, the waiting time of the user when parking (the waiting time until the elastic member (70) contracts) can be shortened. Note that when t2<t1, the time required for the expansion/contraction member (70) to switch to the extended state is long, but the switching to the extended state is performed after the user exits the parking space (2). The user does not feel discomfort even when the length becomes long.

Further, if the maximum speed until the retractable member (70) in the contracted state reaches the stretched state is v1 and the maximum speed until the stretchable member (70) in the stretched state reaches the contracted state is v2, the control section (46) It is preferable to control the expansion and contraction of the elastic member (70) so that the maximum speed v2 becomes faster than the maximum speed v1. This is because t2<t1 can be easily realized by making the maximum speed v2 faster than the maximum speed v1.

<<Modification of warning device>>
In each of the above-described embodiments, the warning device (10) may have the following modified configurations.

<Modification 1 of warning device>
The warning device of the first modification is different from the warning device (10) of the above-described embodiment in the configurations of the extension mechanism (100) and the drive mechanism (20).

<Expansion/contraction mechanism>
As shown in FIG. 11, the extension/contraction mechanism (100) of the first modification includes three arm units arranged vertically. Each arm unit (106) is composed of the first arm (102a), the second arm (102b), and the first arm connecting shaft (110) of the above embodiment. The connecting arm unit (108) is arranged on the upper side of the upper first arm unit (106a), and the drive arm unit (109) is arranged on the lower side of the lower third arm unit (106c). ..

The first to third arm connecting shafts (110 to 112) are shorter than those in the above embodiment. The pair of arms (102) of each arm unit (106) and the pair of arms (101) of the connecting arm unit (108) are rotatably connected to each other as in the above embodiment. Further, the connection arm unit (108) and the first arm unit (106a), and the vertically adjacent arm units (106a to 106c) are also rotatably connected to each other as in the above embodiment.

The drive arm unit (109) includes a fifth arm (105a), a sixth arm (105b), and a drive arm connecting pin (123). The fifth arm (105a) and the sixth arm (105b) are a pair of arms (105) and have the same length as the pair of arms (101) of the connecting arm unit (108).

Each of the fifth arm (105a) and the sixth arm (105b) has a second shaft hole (115) formed at one end and a fifth shaft hole (122) formed at the other end. The fifth shaft holes (122, 122) are connected to each other by a drive arm connecting pin (123). Therefore, the fifth arm (105a) and the sixth arm (105b) are connected so that their relative angles can be changed.

The drive arm unit (109) is rotatably connected to the third arm unit (106c) by two second arm connecting shafts (111, 111).

Specifically, one end of the second arm connecting shaft (111) is connected to the second shaft hole (115) on the lower end side of the first arm (102a) of the third arm unit (106c), and the other end is The drive arm unit (109) is connected to the second shaft hole (115) of the fifth arm (105a). Similarly, one end of the second arm connecting shaft (111) is connected to the second shaft hole (115) on the lower end side of the second arm (102b) of the third arm unit (106c), and the other end is the drive arm. It is connected to the second shaft hole (115) of the sixth arm (105b) of the unit (109).

<Drive mechanism>
As shown in FIGS. 11 and 12, the drive mechanism (20) of the first modification includes a first motor (91a) and a second motor (91b).

The first motor (91a) and the second motor (91b) are arranged on the first substrate (16a). The first motor rotation shaft (92a) of the first motor (91a) is connected to the fifth shaft hole (122) of the fifth arm (105a) from the rear. The second motor rotation shaft (92b) of the second motor (91b) is connected to the fifth shaft hole (122) of the sixth arm (105b) from the front. That is, the first motor (91a) drives the lower end side of the fifth arm (105a), and the second motor (91b) drives the lower end side of the sixth arm (105b).

The angle formed by the pair of arms (105) of the drive arm unit (109) is expanded/contracted by the first motor (91a) and the second motor (91b). Specifically, the first motor (91a) rotates the first motor rotation shaft (92a) in the first rotation direction by a predetermined angle, while the second motor (91b) rotates the second motor rotation shaft (92b). The first motor rotation shaft (92a) is rotated at the same angle in the second rotation direction opposite to the one rotation direction at the same angle. The first motor rotation shaft (92a) is driven in the first rotation direction so that the angle formed by the pair of arms (105) of the drive arm unit (109) is expanded, and the second motor rotation shaft (92b) is rotated in the second rotation direction. When driven in the direction, the angle formed by the pair of arms (107) of each arm unit (106) expands. At this time, since the inclination angle of all the arms (101a to 105b) with respect to the horizontal plane becomes small, the height of the expansion and contraction mechanism (100) becomes low. This causes the expansion/contraction mechanism (100) to contract.

On the other hand, the first motor rotation shaft (92a) is driven in the second rotation direction so that the angle formed by the pair of arms (105) of the drive arm unit (109) is narrowed, and the second motor rotation shaft (92b) is moved to the second rotation direction. When driven in one rotation direction, the angle formed by the pair of arms (107) of each arm unit (106) narrows. At this time, since the inclination angles of all the arms (101a to 105b) with respect to the horizontal plane are large, the height of the extension/contraction mechanism (100) is high. This causes the expansion/contraction mechanism (100) to expand.

As described above, the first motor (91a) and the first motor rotation shaft (92a) and the second motor rotation shaft (92b) are switched to the first rotation direction and the second rotation direction, respectively. The expansion/contraction member (70) can be switched between the first state and the second state by controlling the two motors (91b).

<Modification 2 of warning device>
The warning device (10) of the second modification is different from the warning device (10) of the above-described embodiment in the configuration of the elastic member (70).

The expansion/contraction member (70) of Modification 2 is composed of a tubular member (not shown) formed in a tubular shape. The tubular member is made of, for example, a thermoplastic material, and is manufactured by injection molding in which a resin is filled in a mold and molded. The tubular member has a vertical wall (74a), an upper end protrusion (74b), and a lower end protrusion (74c), as in the above embodiment. The vertical wall (74a) of the second modification is formed in a cylindrical shape unlike the above embodiment. The upper end convex portion (74b) of the modified example 2 is formed in an annular shape protruding inward in the radial direction from the upper end of the tubular member. The lower end protrusion (74c) of the second modification is formed in an annular shape that projects radially outward from the lower end of the tubular member. The vertical cross section of the tubular member of Modification 2 is the same as the vertical cross section (see FIG. 8) of the frame (74) of the above embodiment. The elastic member (70) of Modification 2 does not have the ring (75) of the above embodiment.

The tubular members are arranged such that the vertical walls (74a, 74a,...) Overlap in the radial direction when the elastic member (70) is in the contracted state. That is, among the adjacent tubular members, a tubular member having a smaller diameter than the tubular member is arranged inside the tubular member. As a result, when the elastic member (70) is in the contracted state, the upper end of the tubular member is formed flush.

On the other hand, when the elastic member (70) is in the stretched state, the lower end protrusion (74c) of the inner tubular member and the upper end protrusion (74b) of the outer tubular member engage with each other, thereby The tubular member projects above the outer tubular member. As a result, when the elastic member (70) is in the stretched state, the elastic member (70) is formed in a conical shape.

An upper lid (73) is attached to the top of the innermost tubular member. Therefore, when the elastic member (70) is in the contracted state, the upper lid (73) and the tubular member are flush with each other. Consequently, the upper surface of the upper lid (73) and the upper end of the tubular portion (18) are at the same height position, so that the upper lid (73) and the upper end of the tubular portion (18) are flush with each other.

At least one of the upper surface (78) of the lower end convex portion (74c) and the lower surface (79) of the upper end convex portion (74b) of each tubular member is preferably provided with a sheet member having elasticity and waterproofness. .. With this, when the elastic member (70) is in the stretched state, it is possible to prevent the vertically adjacent tubular members from being flooded from between the upper end convex portion (74b) and the lower end convex portion (74c) which engage with each other. be able to.

<Modification 3 of warning device>
The warning device (10) of the third modification is different from the warning device (10) of the embodiment in the configuration of the release mechanism (300). The release mechanism (300) of Modification 3 is provided on the pair of racks (21a, 21b). In the following description, the release mechanism (300) of one rack (21a) will be described as a representative.

As shown in FIG. 13, a rack connecting portion (303) is connected to the end surface (301) of the rack (21a). The rack connecting portion (303) is a rectangular parallelepiped member having the same width and height as the rack (21a). The rack connecting portion (303) is made of, for example, a resin material.

The rack connecting portion (303) has a recess (304) and an arm connecting hole (22a).

The concave portion (304) is formed on the left end surface of the rack connecting portion (303). A convex portion (305) is formed on the end surface (301) of the rack (21a). The rack connecting part (303) is connected to the rack (21a) so that the convex part (305) fits into the concave part (304).

The arm connecting hole (22a) is formed on the rear surface of the rack connecting portion (303). That is, the rack (21a) is connected to the third arm (103a) of the third arm unit (106c) via the rack connecting portion (303).

When the telescopic mechanism (100) extends, the pair of racks (21a, 21b) approach each other. At this time, the third force (F3) pulled by the rack (21a) acts on the rack connecting portion (303).

On the other hand, when a predetermined pressure is applied to the upper lid (73) of the elastic member (70) downward, the angle formed by the pair of arms (107) of the arm unit (106) is expanded. At this time, the fourth force (F4) pulled by the rack connecting portion (303) acts on the rack (21a).

The third force (F3) is such a force that the convex portion (305) of the rack (21a) does not come out of the concave portion (304) of the rack connecting portion (303). On the other hand, the fourth force (F4) is such a force that the convex portion (305) of the rack (21a) comes out of the concave portion (304) of the rack connecting portion (303). That is, the fitting degree of the convex portion (305) and the concave portion (304) does not release the connection between the rack (21a) and the rack connecting portion (303) by the third force (F3), but the fourth force (F4). Is set to be released.

By the above, when a predetermined pressure is applied downwardly to the upper lid (73) of the elastic member (70) and a force of the fourth force (F4) or more is applied to the rack connecting part (303), the rack (21a) and the rack connecting part are connected. The connection with (303) is released. Therefore, damage to the expansion/contraction mechanism (100) and the drive mechanism (20) can be prevented.

<Modification 4 of warning device>
The warning device (10) of the modification 4 is different from the warning device (10) of the embodiment and the modification 3 in the configuration of the release mechanism (300). The release mechanism (300) of Modification 4 is provided on the pair of racks (21a, 21b). In the following description, the release mechanism (300) of one rack (21a) will be described as a representative.

The fourth shaft hole (116) of the third arm (103a) of the third arm unit (106c) and the arm connecting hole (22a) of the rack (21a) are connected by a thin pin (310).

When the expansion/contraction mechanism (100) extends, the thin pin (310) receives a fifth force (F5) from the end face (301) side.

On the other hand, when a predetermined pressure is applied to the upper lid (73) of the elastic member (70) downwardly, the thin pin (310) receives a sixth force (F6) toward the end face (301) of the rack (21a). To work. That is, the thin pin (310) tries to push (move) the rack (21a) to the right by the force of the sixth force (F6).

Even if the fifth force (F5) acts on the thin pin (310), the thin pin (310) does not break and the telescopic mechanism (100) telescopes. On the other hand, when the sixth force (F6) acts on the thin pin (310), the thin pin (310) does not push the rack (21a) to the right and is broken. Specifically, when a force of the sixth force (F6) or more is applied to the thin pin (310), only the third arm (103a) of the third arm unit (106c) tries to move to the right and the fourth shaft hole. The thin pin (310) is broken by the displacement of the position of (116) and the position of the arm connecting hole (22a). In other words, the thin pin (310) is set to have a breaking strength when the sixth force (F6) is applied.

As described above, when a predetermined pressure is applied to the upper lid (73) of the elastic member (70) downward and a force of the sixth force (F6) or more is applied to the thin pin (310), the thin pin (310) is broken. As a result, the connection between the rack (21a) and the third arm (103a) of the third arm unit (106c) is released. Therefore, damage to the expansion/contraction mechanism (100) and the drive mechanism (20) can be prevented.

<<Modification of alarm system>>
In each of the above-described embodiments, the warning system (S) may have the following modified configurations.

<Modification 1 of warning system>
In Modification 2 of the alarm system (S) using the warning device (10), the warning system (S) includes a plurality of warning devices (10) and a remote corresponding to at least one of the plurality of warning devices (10). An alarm system (S) including a controller (50). In the alarm system (S) of the present embodiment, an advanced network (for example, a multi-hop wireless communication network) using a plurality of warning devices (10) is constructed.

A multi-hop wireless communication network is, for example, a network constructed by a method of transmitting data like a bucket brigade via a plurality of wireless communication devices, and automatically selects and detours a route for communication. Therefore, it is resistant to obstacles and excellent in reliability. In a multi-hop wireless communication network, one master station can accommodate a large number of slave stations (for example, 100 or more), so that a wireless network in a wide area can be constructed at low cost.

In the alarm system (S) shown in FIG. 17, the control signal transmitted from the remote controller (50) can be transferred to the user's warning device (10) via another warning device (10). In the embodiment shown in FIG. 18, radio waves in the 920 MHz band are used, for example. Since the basic configurations of the warning device (10) and the remote controller (50) are the same as those in the above-described embodiment, detailed description will be omitted.

As shown in FIG. 17, in each of the warning devices (10), the control unit (46) uses the first transmission/reception unit (41) to control the remote controller (50) or another warning device (10). Control for receiving the control signal transmitted from the remote controller (50) or other warning device (10) using the first transmitting/receiving unit (41). ..

The control unit (46) provided in each of the warning devices (10) includes a first storage unit (47) and a determination unit (48). In each of the warning devices (10), the first storage unit (47) stores ID information individually set for each warning device (10) (identification information individually set for the warning device). ing.

The control signal (first control signal and second control signal) transmitted from the remote controller (50) or another warning device (10) includes an ID corresponding to one of the plurality of warning devices. Contains information.

In each of the warning devices (10), the determination unit (48) includes the ID information stored in the first storage unit (47) and the ID information included in the control signal received by the first transmission/reception unit (41). Is checked to determine whether a condition indicating that the two match is satisfied.

In each of the warning devices (10), when the determination unit (48) determines that the above condition is satisfied, the control unit (46) controls the drive mechanism (20) to perform the same operation as in the first embodiment. The telescopic member (70). The control unit (46) does not control the drive mechanism (20) unless the determination unit (48) determines that the above condition is satisfied.

-Details of alarm system operation-
The operation of the alarm system (S) shown in FIG. 17 will be described more specifically with reference to FIG. In the example of FIG. 18, a plurality of parking spaces are set in the parking lot (1). The plurality of parking spaces include a parking space in which warning devices (10A to 10F) are installed and a parking space in which the warning device (10) is not installed. The hatched parking space (2A) is a parking space for the user, and a warning device (10A) is installed. Different ID information is stored in the respective first storage sections (47) of the warning devices (10A to 10F).

The remote controller (50A) carried by the user stores ID information corresponding to the warning device (10A) in advance, and the remote controller (50A) carried by the user carries a control signal (first The 1st control signal and the 2nd control signal) include ID information corresponding to the warning device (10A). The control signal transmitted from the remote controller (50B to 50F) corresponding to the warning device (10B to 10F) includes ID information corresponding to the warning device (10B to 10F).

When a plurality of warning devices (10A) used by the user are installed in the parking space (2A) of the user, the same ID information is stored in each of the plurality of warning devices used by the user. Preferably. This is because one remote controller (50A) can control multiple warning devices at the same time.

The operation of the alarm system (S) shown in FIG. 17 will be described. In FIG. 18, when the user's vehicle (3) returns to the parking lot (1) (when the vehicle (3) is in the position shown in FIG. 18), the user operates the remote controller (50) to (50) transmits a second control signal (a signal for switching to the contracted state).

The second control signal is received by the first transmitting/receiving unit (41) of another warning device (for example, the warning device (10B, 10C)) near the user's vehicle (3). The ID information of the second control signal transmitted from the remote controller (50) of the user corresponds to the warning device (10A) and does not correspond to the warning devices (10B to 10F).

The determination unit (48) of each of the warning devices (10B, 10C) collates the ID information stored in the first storage unit (47) with the ID information included in the received second control signal, and sets the condition. Is determined not to hold. This is because the ID information of the second control signal transmitted from the user's remote controller (50) corresponds to the warning device (10A).

The control unit (46) of the warning device (10B, 10C) does not control the drive mechanism (20) because the determination unit (48) determines that the condition is not satisfied, and uses the first transmission/reception unit (41). Then, the received second control signal is transmitted to another warning device (10). The second control signal transmitted from the warning device (10B) is received by another warning device (for example, the warning device (10C, 10D, 10E)) close to the warning device (10B) and transmitted from the warning device (10C). The second control signal is received by another warning device (for example, the warning device (10E, 10F)) close to the warning device (10C), and the same processing as the above is performed.

The warning device (10A) receives the second control signal transmitted from the other warning devices (10E, 10F) by repeating the processing such as the transfer of the second control signal described above.

The determination unit (48) of the warning device (10A) compares the ID information stored in the first storage unit (47) with the ID information included in the received second control signal, and determines that the condition is satisfied. To do. This is because the ID information of the second control signal transmitted from the user's remote controller (50) corresponds to the warning device (10A).

The control unit (46) of the warning device (10A) determines that the condition is satisfied by the determination unit (48). Therefore, by controlling the drive mechanism (20), the expandable member () of the user's warning device (10A) is controlled. 70)
Can be switched to a contracted state.

As described above, in the first modification, the control signal transmitted from the user's remote controller (50) can be sent to the user's warning device (10A) via the plurality of warning devices (10B to 10F). .. Therefore, as shown in the example of FIG. 18, the position of the vehicle (3) and the user's warning device (10A) are relatively distant from each other, or between the vehicle (3) and the warning device (10A). Even if there is a radio wave shield such as a wall or a vehicle, the user's warning device (10A) can be reliably controlled.

Further, the plurality of warning devices (10A to 10F) communicate with each other not only when any of the warning devices (10A to 10F) receives a signal from the remote controller (50). The plurality of warning devices (10A to 10F) may send and receive signals to and from each other at regular intervals. As a result, other warning devices (10B to 10F) are notified that a signal cannot be received from the warning device (10A) or cannot send a signal to the warning device (10A) among the plurality of warning devices (10A to 10F). When detected, the alarm device (10A) will be alerted to the mobile device of the user of the alarm device (10A), directly or indirectly, that something wrong such as a failure or theft has occurred. The device (10A) can be configured to transmit a signal notifying that an abnormality has occurred. Therefore, the user of the warning device (10A) can quickly notice the abnormality of the warning device (10A).

A modification of Modification 1 described above will be described. In Modification 1 described above, the remote controller (50A) carried by the user stores ID information corresponding to the warning device (10A) in advance, and ID information corresponding to the warning devices (10B to 10F). Was not included.

In this modification, the user is, for example, an employee of a company (courier, etc.) that owns a plurality of vehicles. The company has a contract that only vehicles of the company can park multiple parking spaces in the parking lot (1). An employee (user) driving a vehicle of the company can park the vehicle in a vacant parking space among a plurality of parking spaces contracted by the company. A warning device (10A to 10F) is installed in each of the parking spaces that the company has contracted with.

In a remote controller (50A) carried by a user (employee) who is driving a vehicle (3), ID information corresponding to the warning devices (10A to 10F) is stored in advance. The operation unit (51) of the remote controller (50A) includes, for example, a selection button for selecting any of the warning devices (10A to 10F) to be operated, and a first button for transmitting a first control signal. And a second button for transmitting the second control signal. More preferably, in order to enable a plurality of warning devices (10A to 10F) to be operated at the same time, at least two or more warning devices (10A to 10F) among the operated warning devices (10A to 10F) can be selected at the same time. Is preferably provided.

Since the remote controller (50A) carried by the user stores the ID information corresponding to the warning device (10A to 10F), the remote controller (50A) is one of the warning devices (10A to 10F). A control signal (control signal including ID information corresponding to the warning devices (10A to 10F)) corresponding to the above can be transmitted.

In this modification, when the user's vehicle (3) returns to the parking lot (1), the user confirms the vacant parking space among the plurality of parking spaces contracted by the company. Next, by operating the selection button of the operation section (51), the warning device (for example, 10A) installed in the vacant parking space is selected. Next, by operating the second button of the operation unit (51), the second control signal including the ID information corresponding to the warning device (10A) is transmitted.

The second control signal is received by another warning device (for example, a warning device (10B, 10C)) near the user's vehicle (3). Then, by performing the processing described in the above-described second embodiment, the warning device (10A) receives the second control signal transmitted from another warning device (for example, 10E, 10F), and the expansion/contraction member ( 70) can be switched to the contracted state.

As described above, in the modified example of the modified example 1, the control signal transmitted from the user's remote controller (50) is transmitted to the arbitrary warning devices (10A to 10F) via the plurality of warning devices (10A to 10F). Can be sent. Further, it is possible to control any warning device (10A to 10F) based on the control signal transmitted from the user's remote controller (50). Therefore, each of the plurality of warning devices (10A to 10F) can be suitably controlled even if the plurality of warning devices (10A to 10F) are owned. Further, the number of warning devices (10A to 10F) that can be operated is not limited to one, and a plurality of warning devices (10A to 10F) selected by a user's operation can be simultaneously controlled.

<Modification 2 of warning system>
The alarm system (S) of the second modification includes an output device (60). The output device (60) is a device mounted on the user's vehicle (3), and is, for example, a part of a car navigation system, a driving assistance system, or the like of the vehicle (3). Since the basic configuration of the warning device (10) is the same as that of the first and second embodiments, detailed description thereof will be omitted.

As shown in FIG. 19, the output device (60) includes a position information acquisition unit (61), a second storage unit (62), a positional relationship determination unit (63), and a third transmission/reception unit (64). ..

The position information acquisition unit (61) specifies the current position of the user's vehicle (3) and is also used as, for example, a GPS (Global Positioning System) of a car navigation system. The position information of the preset parking space (2) of the user is stored in the second storage section (62). A positional relationship determination unit (63) determines a distance between the information about the current position of the vehicle (3) acquired by the position information acquisition unit (61) and the set position information of the parking space (2). The output device (60) transmits a control signal from the third transmitting/receiving unit (64) to the warning device (10) according to this distance.

Specifically, for example, when the telescopic member (70) of the warning device (10) is in the extended state, the vehicle (3
) Came back near the parking space (2). Along with this, the positional relationship determination unit (63)
When the distance determined by is smaller than the first predetermined value (for example, 100 m), the output device (60) automatically outputs the second control signal to the warning device (10) (a signal for switching the expansion/contraction part to the contracted state). Will be sent. As a result, the retractable member (70) is contracted before the vehicle (3) returns to the front of the parking space (2) (for example, the distance between the current position information of the vehicle and the position information of the parking space is within 5 m). Can be switched to.

According to this modification, it is possible to save the user the trouble of operating the remote controller (50) and provide a more user-friendly system. Further, by appropriately setting the first predetermined value, the warning device (10) can be surely brought into the contracted state before the vehicle (3) arrives at the parking space (2), and the waiting time of the user ( It is possible to reliably reduce the waiting time until the warning device is in the contracted state.

As another modification, the output device (60) can automatically transmit the first control signal (a signal for switching the expansion/contraction part to the expanded state) to the warning device (10).

In this case, the output device (60) is preset with a second predetermined value (for example, 1 km). When the vehicle (3) exits the parking space (2) and the distance determined by the positional relationship determination unit (63) exceeds a second predetermined value (for example, 1 km), the output device (60) causes the warning device (10). ) Is automatically transmitted to (1).

According to the present embodiment, it is not necessary to confirm that the elastic member (70) has been switched to the stretched state when going out, so the waiting time of the user (the waiting time until the warning device is in the stretched state) is accordingly. Can be reliably shortened. The second predetermined value is preferably larger than the first predetermined value in order to prevent the elastic member (70) from being unnecessarily expanded and contracted.

<<Other Embodiments>>
In the above-described embodiment, the frame (74) includes the end protruding from the upper end of the vertical wall (74a) in a direction (radially outward) opposite to the upper end convex portion (74b) and the lower end of the vertical wall (74a). From the lower end convex portion (74c) may be provided with an end portion protruding in a direction (radially inward) opposite to the lower end convex portion (74c). That is, the frame (74) may have an I-shaped vertical cross section.

In the above-described embodiment, the release mechanism (300) may be configured such that the pin (39) is pulled out from the notch (302) of the rack (21a) by the rotation of the pinion (23). Specifically, when a predetermined pressure acts on the upper lid (73), the warning device (10) senses that and causes the pinion (23) to momentarily rotate counterclockwise. The pair of racks (21a, 21b) momentarily try to move toward each other, but at this time, the pinion (39) receives the force of the second force (F2) or more from the end face (301). The initial rotation speed of is set. Therefore, the pin (39) comes out of the notch (302) by elastically deforming the notch (302). As described above, the connection between the rack (21a) and the pair of arms (103) of the third arm unit (106c) is released, so that the expansion mechanism (100) and the drive mechanism (20) can be prevented from being damaged. .. Examples of a device that applies a predetermined pressure to the upper lid (73) include a pressure sensor and an acceleration sensor.

In the above-described embodiment, the release mechanism (300) is provided on both the pair of racks (21a, 22b). However, the release mechanism (300) may be provided on either one of the racks (21a, 21b).

In the above-described embodiment, the fourth rotation shaft (28d) is the rotation transmission part in which the engagement part (201) is formed. However, the first rotation shaft (28a), the second rotation shaft (28b), or the third rotation shaft (28c) may be the rotation transmission unit in which the engagement unit (201) is formed. When the engaging portion (201) is formed on the first rotating shaft (28a), the first rotating shaft (28a) extends from the lower surface of the first gear (27a) to the vicinity of the bottom plate (11b), and the engaging portion (201 ) Is formed on the lower surface of the first rotating shaft (28a). At this time, the through hole (13) is formed at a position overlapping with the axis of the first rotating shaft (28a). Further, the engagement portion (201) can be visually recognized from the outside when the lid (14) is removed from the through hole (13). The case where the engaging portion (201) is formed on the second rotating shaft (28b) and the third rotating shaft (28c) is similar to the case where the engaging portion (201) is formed on the first rotating shaft (28a). Is.

In the above-described embodiment, the fourth rotation shaft (28d) is the rotation transmission part in which the engagement part (201) is formed. However, the third gear (27c) or the fourth gear (27d) may be the rotation transmission part in which the engagement part (201) is formed. When the engagement portion (201) is formed on the third gear (27c), the lower surface of the third gear (27c) is arranged near the upper surface of the bottom plate (11b) (that is, near the installation portion (12)). The through hole (13) is formed at a position overlapping with the third gear (27c). The through hole (13) is formed in such a size that the entire third gear (27c) can be visually recognized. The engagement portion (201) is, for example, a circular hole formed in the lower surface of the third gear (27c). The user can rotate the third gear (27c) by engaging a tool in this hole. This allows the user to expand and contract the expansion/contraction mechanism (100). The case where the engaging portion (201) is formed on the fourth gear (27d) is the same as the case where the engaging portion (201) is formed on the third gear (27c).

Although the through hole (13) is formed in the bottom plate (11b) in the above-described embodiment, the through hole (13) may be omitted. In this case, the base (11) is configured such that the bottom plate (11b) and the base main body (11a) can be separated. The user can remove the bottom plate (11b) and engage the tool with the engagement portion (201).

In the above-described embodiment, the power supply (40) is not limited to the battery and may be a power supply unit to which AC power is supplied from a commercial power supply.

In the above-described embodiment, the expansion/contraction member (70) is provided with a display of characters, symbols, or the like that alert the driver of the other vehicle (3) when the expansion/contraction member (70) is in the extended state. Good. For example, when the stretchable member (70) is in a stretched state, it is preferable to display "Contracted parking lot. Parking prohibited" on the outer surface.

In the above-described embodiment, the elastic member (70) may be provided with a light emitting section. The light emitting unit is composed of a light emitting element such as an LED. Since the light emitting section emits light, the driver of another vehicle can quickly recognize the presence of the warning device (10). The light emitting unit of the present embodiment is provided on the top of the elastic member (70). Therefore, the light emitting unit can emit light from a high position, and the visibility from a distance is improved.

The warning device of the present disclosure is not limited to the warning device used in the parking lot. The warning device can be used as a warning device for roads and highways by being installed on roads and highways, for example. In addition, when installed in a park or the like, it can be used for sports and other purposes.

The above embodiment has been described in detail using the remote controller (50) that transmits a control signal to the warning device (10). The device (remote controller) that transmits the control signal to the warning device (10) may be a small wireless device that can be carried by a person, such as a mobile phone or a smartphone, or a car mounted on a vehicle and capable of wireless communication. It may be a navigation system or the like.

In the above-described embodiment, the example in which the transmitting unit and the receiving unit are integrally formed has been described, but the present invention is not limited to this, and the transmitting unit and the receiving unit may be configured separately. ..

In the above-described embodiment, the control signal is not limited to the above-described embodiment as long as the control signal can control the expansion/contraction of the expansion/contraction member (70). For example, various control signals, sensor signals, and the like may be signals in which the control signals are integrally coded.

The present invention is useful for warning devices.

1 Parking Lot 10 Warning Device 11 Base 20 Drive Mechanism 21a, 21b Rack 23 Pinion 26 Motor 28d Fourth Rotation Shaft (Rotation Transmission Unit)
70 elastic member 72 cover 73 upper lid (top)
74 frame 74a vertical wall 74b upper end convex part 74c lower end convex part 91a first motor 91b second motor 100 expansion mechanism 102a first arm 102b second arm 103a third arm 103b fourth arm 105a fifth arm 105b sixth arm 105 drive Arm 106 Arm unit 107 Pair of arms 201 Engagement portion 300 Release mechanism

Claims (7)

A base having a first surface provided on the first direction side and facing the ground, and a concave frame provided on the second direction side that is the opposite direction to the first direction;
It has a first arm and a second arm paired with the first arm connected to the first arm so that a relative angle to the first arm can be changed, and is extendable in the second direction side. A flexible mechanism,
A drive mechanism that engages with the extension mechanism and supplies a drive force to the extension mechanism;
Is connected to an end of the second direction side of the telescopic mechanism, the extension mechanism is provided on the frame portion of the base when not stretched, with the extension of the telescopic mechanism when said extension mechanism is stretched A first frame member that is supplied with a driving force from an end portion of the extension mechanism that is on the second direction side and that moves toward the second direction side so that the distance between the base and the base gradually increases .
The extension mechanism is provided in the frame portion outside of the base of the first frame member when not stretched, when the expansion mechanism is stretched, with the extension of the telescopic mechanism, the first frame member engaging possess a second frame member provided in the first direction side than the first frame member by moving in the second direction side,
The first frame member has a first engaging portion provided at an end portion on the first direction side,
The second frame member has a second engaging portion provided at an end portion on the second direction side,
The second frame member is movable in the second direction by the second engaging portion engaging with the first engaging portion of the first frame member when the expansion mechanism is extended. Warning device for various parking lots. The warning device according to claim 1,
The extension mechanism is provided in the frame portion outside of the base of the second frame member when not stretched, when the expansion mechanism is stretched, with the extension of the telescopic mechanism, the second frame member A third frame member that is provided closer to the first direction than the second frame member by engaging with and moving toward the second direction,
The extension mechanism is provided in the frame portion of the base outside of said third frame member when not stretched, when the expansion mechanism is stretched, with the extension of the telescopic mechanism, the third frame member And a fourth frame member provided on the first direction side with respect to the third frame member by moving to the second direction side,
The second frame member has a third engaging portion provided at the end portion on the first direction side,
The third frame member has a fourth engaging portion provided at an end portion on the second direction side and a fifth engaging portion provided at an end portion on the first direction side,
The fourth frame member has a sixth engaging portion provided at an end portion on the second direction side,
When the expansion mechanism is extended, the third frame member moves toward the second direction side by the fourth engagement portion engaging with the third engagement portion of the second frame member, and The fourth frame member moves toward the second direction side when the sixth engaging portion engages with the fifth engaging portion of the third frame member,
The said 1st frame member , the said 2nd frame member , the said 3rd frame member , and the said 4th frame member are warning devices for a portable parking lot which are arrange|positioned at substantially cone shape. The warning device according to claim 1 or 2, wherein
A receiver for receiving a control signal,
A portable warning device for a parking lot, comprising: a control unit that controls the drive mechanism based on a control signal received by the reception unit. A base having a first side and a frame portion of Rutotomoni concave provided in the second direction from the first direction is a backward direction opposite to the ground is provided in a first direction,
An extension/contraction mechanism having a first arm and a second arm paired with the first arm connected to the first arm so that a relative angle to the first arm can be changed,
A drive mechanism that engages with the extension mechanism and supplies a drive force to the extension mechanism;
And a telescopic member that is provided around the telescopic mechanism and that engages with the telescopic mechanism and that expands and contracts in the first direction and the second direction in accordance with the telescopic operation of the telescopic mechanism,
The expansion mechanism is
A third arm whose one end side is connected to the first arm in the first direction side of the first arm;
One end side of the second arm in the first direction side is connected to the second arm and is paired with the third arm connected to the third arm so that a relative angle to the third arm can be changed. And a fourth arm,
The drive mechanism is
A rack connected to the other end of the third arm and the other end of the fourth arm, a pinion that engages with the rack, and a drive unit that drives the pinion.
A release mechanism provided on the base, which releases the connection between at least one of the third arm and the fourth arm and the rack by applying a force in the first direction to the elastic member. Car parking warning device with. A base having a first side and a frame portion of Rutotomoni concave provided in the second direction from the first direction is a backward direction opposite to the ground is provided in a first direction,
An extension/contraction mechanism having a first arm and a second arm paired with the first arm connected to the first arm so that a relative angle to the first arm can be changed,
A drive mechanism that engages with the extension mechanism and supplies a drive force to the extension mechanism;
And a telescopic member that is provided around the telescopic mechanism and that engages with the telescopic mechanism and that expands and contracts in the first direction and the second direction in accordance with the telescopic operation of the telescopic mechanism,
The expansion mechanism is
A third arm whose one end side is connected to the first arm in the first direction side of the first arm;
One end side of the second arm in the first direction side is connected to the second arm and is paired with the third arm connected to the third arm so that a relative angle to the third arm can be changed. And a fourth arm,
The drive mechanism is
A rack connected to the other end of the third arm and the other end of the fourth arm, a pinion that engages with the rack, and a drive unit that drives the pinion.
A motor,
A rotation transmission unit that rotates so as to transmit the rotation of the motor to the pinion,
The portable warning device for a parking lot, wherein the rotation transmitting portion is arranged such that an axial end surface of the rotation transmitting portion is exposed from the first surface of the base. The warning device according to claim 1,
The first frame member及 beauty the second frame member is a plurality of frames or tubular member, which is arranged around the telescopic mechanism,
The plurality of frames or the tubular member,
A vertical wall extending in the first direction and the second direction,
A first protrusion protruding outward from the first direction end of the vertical wall;
A second protrusion protruding inward from the second direction end of the vertical wall,
When the expansion mechanism is not extended, the vertical wall of the first frame member and the vertical wall of the second frame member overlap with each other when viewed from a direction orthogonal to the second direction.
When the expansion/contraction mechanism is extended, the vertical wall of the first frame member protrudes toward the second direction side with respect to the vertical wall of the second frame member , and the first frame member includes the first frame member . A portable parking warning device, characterized in that a convex portion and the second convex portion of the second frame member are engaged with each other. The warning device according to any one of claims 1 to 3,
A portable parking warning device having a cover member having a first connecting portion connected to the first frame member and a second connecting portion connected to the second frame member .

that's all

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