Vibration alarm device

Abstract

The present invention provides a vibration notification device that allows for easy determination of the magnitude of vibrations at the ground surface of a planned building construction site without requiring specialized knowledge. [Solution] The vibration notification device 10 is a vibration notification device that notifies the magnitude of vibrations on the ground surface G of the planned construction site of a building H, and comprises a vibrating member 20 that vibrates at a target frequency Ft according to the design of the building H when the ground surface G vibrates, a voltage generating unit 30 attached to the vibrating member 20 that deforms in conjunction with the vibration of the vibrating member 20 and generates a voltage according to the amount of deformation, and a notification unit 40 that notifies the magnitude of vibrations in a manner according to the magnitude of the voltage generated by the voltage generating unit 30.

Description

Technical Field

[0001] The present invention relates to a vibration notification device, and more particularly to a vibration notification device that notifies the scale of vibration on the ground surface of a planned building construction site.

Background Art

[0002] In order to predict the degree of influence of environmental vibration on a building after construction, it has been carried out to grasp the scale of vibration on the ground surface of the planned building construction site before construction (for example, see Patent Document 1). The building vibration damage prediction system described in Patent Document 1 is configured by housing a vibration level meter that measures ground vibration, a frequency analyzer that performs frequency analysis on the measurement data of the vibration level meter, and an information processing device such as a personal computer (hereinafter referred to as "PC") in a portable case.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The building vibration damage prediction system described in Patent Document 1 can perform highly accurate prediction by using frequency characteristics for vibration prediction, but requires a certain degree of specialized knowledge. In addition, since work using an information processing device such as a PC is involved, it takes time and the scale of vibration on the ground surface cannot be easily grasped.

[0005] Therefore, the present invention has been made in view of the above problems, and an object thereof is to provide a vibration notification device that can easily grasp the scale of vibration on the ground surface of a planned building construction site without requiring specialized knowledge.

Means for Solving the Problems

[0006] The above objective is solved by the vibration notification device of the present invention, which is a vibration notification device for notifying the magnitude of vibrations on the ground surface of a building construction site, comprising: a vibrating member that vibrates at a frequency corresponding to the building design when the ground surface vibrates; a voltage generating unit attached to the vibrating member that deforms in conjunction with the vibration of the vibrating member and generates a voltage corresponding to the amount of deformation; and a notification unit that notifies the magnitude of vibrations in a manner corresponding to the magnitude of the voltage generated by the voltage generating unit.

[0007] With the vibration notification device of the present invention, the magnitude of vibrations at the ground surface of the planned building site is notified simply by installing the vibration notification device on the ground surface of the planned building site. Therefore, the magnitude of vibrations at the ground surface of the planned building site can be easily determined without requiring specialized knowledge.

[0008] Furthermore, the vibration notification device may further include a base installed on the ground surface to support the vibrating member, and a weight attached to the vibrating member. The base may be capable of attaching a vibrating member selected from a plurality of vibrating members of different lengths, and the vibrating member may be capable of attaching a weight selected from a plurality of weights of different weights. With the above configuration, by adjusting the length of the vibrating member and the weight of the counterweight, the vibrating member can be made to vibrate appropriately at a frequency that matches the building's design.

[0009] Furthermore, the vibration notification device may include, as vibrating members, two or more vibrating members that vibrate in the same direction, and as voltage generating units attached to each vibrating member, two or more voltage generating units. The notification unit may also notify the magnitude of the vibration in the direction of vibration based on the magnitude of the voltage generated by each of the two or more voltage generating units. With the above configuration, using two or more vibrating members allows for a more accurate assessment of the magnitude of ground vibrations than using a single vibrating member.

[0010] Furthermore, the vibration notification device may include, when two intersecting directions along the ground surface are designated as the first and second directions, a first vibration member that vibrates in the first direction and a second vibration member that vibrates in the second direction, and two or more voltage generating units attached to the first and second vibration members, respectively. In addition, of the two or more voltage generating units, the voltage generating unit attached to the first vibration member may generate a first voltage corresponding to the vibration of the first vibration member, and the voltage generating unit attached to the second vibration member may generate a second voltage corresponding to the vibration of the second vibration member, and the notification unit may notify the magnitude of the vibration in the first direction according to the magnitude of the first voltage and the magnitude of the vibration in the second direction according to the magnitude of the second voltage. With the above configuration, the magnitude of ground surface vibration can be appropriately determined for both the first and second directions.

[0011] Furthermore, the notification unit may have multiple light-emitting units, and the number of light-emitting units may be changed according to the magnitude of the voltage generated by the voltage generation unit. With the above configuration, the magnitude of ground vibration can be easily determined by checking the number of emitting light-emitting parts.

[0012] Furthermore, each of the multiple light-emitting units has a set voltage value that switches it from the off state to the on state, and this set value may differ for each of the multiple light-emitting units. With the above configuration, the magnitude of ground vibration can be easily determined by checking which of the multiple light-emitting units is emitting light.

[0013] Furthermore, the vibration notification device may also include a guide member having a guide surface extending in the direction of vibration of the vibrating member, which guides the vibrating member vibrating in the direction of vibration. With the above configuration, the vibrating member can be appropriately vibrated in the direction of vibration.

[0014] Further, the vibration notification device may be arranged at a position adjacent to the vibration member in the vibration direction of the vibration member, and may further include a regulating member that regulates the vibration of the vibration member in the vibration direction. With the above configuration, for example, during transportation of the vibration notification device, it is possible to suppress the occurrence of problems such as the vibration member being deformed beyond the allowable amount and interfering with other components.

Advantages of the Invention

[0015] According to the present invention, it is possible to provide a vibration notification device that can easily grasp the scale of vibration on the ground surface of the planned construction site of a building without requiring specialized knowledge.

Brief Description of the Drawings

[0016] [Figure 1] It is an explanatory diagram of the outline of a vibration notification device according to one embodiment of the present invention. [Figure 2] It is a front view of a vibration notification device according to one embodiment of the present invention. [Figure 3] It is a plan view of a vibration notification device according to one embodiment of the present invention. [Figure 4] It is an explanatory diagram of the vibration state of a vibration member according to one embodiment of the present invention. [Figure 5] It is an explanatory diagram of the lighting and extinguishing of a light emitting part according to one embodiment of the present invention. [Figure 6] It is a plan view of a vibration notification device according to a modified example of the present invention. [Figure 7] It is a cross-sectional view taken along line A-A of FIG. 6.

Embodiments for Carrying Out the Invention

[0017] Hereinafter, a vibration notification device according to one embodiment of the present invention (hereinafter, this embodiment) will be described with reference to the accompanying drawings. In the drawings, for the sake of easy understanding of the description, each part of the vibration notification device is illustrated in a somewhat simplified or schematic manner. Also, the sizes (dimensions) of each part of the vibration notification device shown in the drawings and the intervals between the parts may be different from the actual ones. Also, unless otherwise specified, when explaining the position, orientation, posture, etc. of each part of the vibration notification device, the position, orientation, posture, etc. in the state where the vibration notification device is installed in the normal position shall be explained.

[0018] Also, in this specification, the meaning of "the same" may include the range of errors generally allowed in the technical field to which the present invention belongs. Also, in this specification, "horizontal", "vertical", and "perpendicular" shall include the range of errors allowed in the technical field to which the present invention belongs. For example, "horizontal", "vertical", and "perpendicular" in this specification mean that they are within a range of less than ±10° with respect to strict "horizontal", "vertical", and "perpendicular". Note that the error from strict "horizontal", "vertical", and "perpendicular" is preferably 5° or less, and more preferably 3° or less.

[0019] Also, in this specification, although the description is based on the premise that the "building" is a residence, it is not limited thereto, and it may be a building other than a residence. Examples of the "building" may include facilities such as nursing facilities, offices, stores, hospitals, or schools, and buildings in factories, etc., which are buildings for various purposes. Also, in this specification, the "user" is a user of the vibration notification device of the present invention, more specifically, for example, an employee of a providing company (such as a housing manufacturer) that provides a building.

[0020] <<Regarding the outline of the vibration notification device according to the present embodiment>> The outline of the vibration notification device (hereinafter, vibration notification device 10) according to the present embodiment will be described with reference to FIG. 1. As shown in Figure 1, the vibration notification device 10 is installed on the ground surface G of the planned construction site of building H before construction, in order to predict the degree of impact of environmental vibration on building H after construction, and by being installed on the ground surface G, it notifies the magnitude of vibration at the ground surface G. Furthermore, the "magnitude of vibration" at the ground surface G reported by the vibration notification device 10 refers to the vibration value based on a physical quantity, more specifically, the vibration acceleration level (acceleration). The "vibration level" is obtained by adding a sensory correction to this vibration acceleration level, and is expressed in units such as decibels (dB). As described above, the "magnitude of vibration" refers to the "vibration acceleration level (acceleration)" and is different from the "vibration level." In the following explanation, unless otherwise specified, "magnitude of vibration" will mean "acceleration level of vibration (acceleration)." "Environmental vibration" refers to vibrations that occur in daily life, such as traffic vibrations caused by vehicles driving on roads around building H, and factory vibrations caused by the operation of factories around building H.

[0021] The vibration notification device 10 is, for example, a portable device and, as shown in Figure 1, mainly comprises a vibrating member 20, a voltage generating unit 30, and a notification unit 40. In general terms, the vibration notification device 10 can be used as follows: For example, during the design phase of building H, the user visits the planned construction site of building H and installs the vibration notification device 10 on the ground surface G of the planned construction site of building H. Once the vibration notification device 10 is installed, minute vibrations at the target frequency Ft on the ground surface G are propagated to and amplified by the vibrating member 20, causing the vibrating member 20 to vibrate significantly at the target frequency Ft. Details regarding the target frequency Ft will be described later.

[0022] As the vibrating member 20 vibrates, the voltage generating unit 30 attached to the vibrating member 20 deforms in conjunction with the vibration of the vibrating member 20, generating a voltage corresponding to the amount of deformation. The notification unit 40 then operates based on the voltage generated by the voltage generating unit 30, and notifies the magnitude of the vibration in a manner corresponding to the magnitude of the voltage. Based on the notified results, the user can consider, for example, design changes to building H.

[0023] Thus, in this embodiment, simply by installing the vibration notification device 10 on the ground surface G of the planned construction site of building H, the magnitude of vibrations at the ground surface G will be notified. Therefore, the magnitude of vibrations at the ground surface G of the planned construction site of building H can be easily determined without requiring specialized knowledge.

[0024] <<Example of the configuration of the vibration alarm device according to this embodiment>> The following will provide a detailed explanation of the configuration example of the vibration alarm device 10, with reference to Figures 2-5. Note that the following configuration example is merely one example of the configuration of a vibration alarm device and does not limit the possible configurations of the vibration alarm device.

[0025] In the following explanation, the three mutually orthogonal directions will be referred to as the "first direction," the "second direction," and the "up and down direction." When the vibration alarm device 10 is installed in its normal position, that is, when the vibration alarm device 10 is installed on the ground surface G, the "first direction" and the "second direction" correspond to two mutually orthogonal directions along the ground surface G, and the "up and down direction" corresponds to the direction perpendicular to the ground surface G. In this embodiment, it is assumed that the ground surface G is a ground surface parallel to the horizontal direction. Therefore, the "first direction" and the "second direction" correspond to two mutually orthogonal directions within the horizontal direction, and the "up and down direction" corresponds to the vertical direction. Furthermore, in the following explanation, "upper side" and "lower side" refer to the upper and lower sides in the vertical direction. Furthermore, in this embodiment, the explanation will be based on the premise that the "vibration direction" in which the vibrating member 20 vibrates is the "first direction".

[0026] As shown in Figure 2, the vibration notification device 10 comprises a base 11, a weight 12, a vibrating member 20, a voltage generating unit 30, a notification unit 40, a module 50, and a guide member 60. In the example shown in Figure 2, the external dimensions of the vibration alarm device 10 are, for example, within the range of 200 mm or more and 400 mm or less in each of the first direction, second direction, and vertical direction. Therefore, the vibration alarm device 10 is compact in size and, for example, portable.

[0027] <Base> As shown in Figure 2, the base 11 is installed on the ground surface G and supports the vibrating member 20. The shape of the base 11 is not particularly limited, and it is acceptable as long as it is a shape that can be installed on the ground surface G and can support the vibrating member 20. The material of the base 11 is not particularly limited, and may be, for example, a resin material, a metal material, or a combination thereof. In the example shown in Figure 2, the base 11 is, for example, a metal box, and the lower end of the vibrating member 20 is fixed to the upper plate of the box-shaped base 11 by a fixing device (not shown). Furthermore, the base 11 can be fitted with a vibrating member 20, which can be selected from a group of vibrating members of different lengths. As for how to replace the vibrating member, for example, the vibrating member fixed to the base 11 can be removed by loosening a fastener (not shown), and another vibrating member of a different length can be fixed using the same fastener (not shown).

[0028] <Weight> The weight portion 12 is attached to the vibrating member 20, as shown in Figure 2. The weight portion 12 may be attached at any position in the direction in which the vibrating member 20 extends. In the example shown in Figure 2, the weight portion 12 is attached to the upper end of the vibrating member 20 that extends in the vertical direction. The shape of the weight portion 12 is not particularly limited and can be any shape that can be attached to the vibrating member 20. The material of the weight portion 12 is not particularly limited and may be, for example, a resin material, a metal material, or a combination thereof. In the example shown in Figure 2, the weight portion 12 is, for example, a metal block, and the weight portion 12 is fixed to the upper end of the vibrating member 20 by a fixing device (not shown). The vibrating member 20 can be fitted with a weight 12, which can be selected from a group of weights with different weights (for example, weights weighing 1 kg or more and 5 kg or less). To replace the weight, for example, the weight fixed to the vibrating member 20 can be removed by loosening a fixing device (not shown), and another vibrating member of a different weight can be fixed using the fixing device (not shown).

[0029] <Vibrating members> The vibrating member 20 is, for example, a columnar member that extends vertically and rises upward from the base 11. The lower end of the vibrating member 20 is fixed to the base 11 and is a fixed end. On the other hand, the upper end of the vibrating member 20 is not fixed and is a free end. Therefore, when the ground surface G vibrates, the upper end of the vibrating member 20 is more prone to deformation.

[0030] The cross-sectional shape of the vibrating member 20 is not particularly limited and may be rectangular, circular, elliptical, a quadrilateral other than a rectangle, a polygon other than a quadrilateral, or an irregular shape. In this embodiment, the explanation will be based on the assumption that the cross-sectional shape of the vibrating member 20 is circular. Note that "cross-section" refers to the cross-section perpendicular to the extension direction of the vibrating member 20, and the same applies in the following explanation. The cross-sectional shape of the vibrating member 20 may differ depending on its position in the extension direction, or it may be constant regardless of its position in the extension direction. Furthermore, the cross-sectional size (cross-sectional area) of the vibrating member 20 may be constant in the direction of extension of the vibrating member 20, or it may be varied in the direction of extension of the vibrating member 20 so that the vibrating member 20 is easily deformed (bent) when vibrated. The material of the vibrating member 20 is not particularly limited and may be, for example, a resin material, a metal material, or a combination thereof. Furthermore, as mentioned above, a vibrating member selected from among several vibrating members of different lengths will be attached to the base 11 as the vibrating member 20.

[0031] Here, the vibrating member 20 will vibrate at the target frequency Ft when the ground surface G vibrates. More specifically, the vibrating member 20 is configured to vibrate most at the target frequency Ft; in other words, the natural frequency of the vibrating member 20 is adjusted to the target frequency Ft. Here, "target frequency Ft" is a frequency corresponding to the design of building H, and more specifically, it corresponds to the natural frequency of building H, that is, the frequency at which building H is most likely to vibrate. Therefore, by understanding the magnitude of vibration of the vibrating member 20 that vibrates at the target frequency Ft, it is possible to predict the magnitude of vibration of building H that vibrates at the target frequency Ft after construction.

[0032] The target frequency Ft may be derived, for example, based on measured natural frequencies of an existing building similar in structure to building H, based on a design model of building H, or by using other known methods. Furthermore, the target frequency Ft may have a certain range; for example, the target frequency Ft may be set to a range of ±0.5Hz centered at 3Hz (i.e., a range of 2.5Hz or higher and 3.5Hz or lower).

[0033] In this way, the vibration notification device 10 adjusts the natural frequency of the vibrating member 20 to the target frequency Ft. Therefore, when vibrations of the target frequency Ft are present in the environmental vibrations of the ground surface G, even if the vibrations of the target frequency Ft on the ground surface G are minute vibrations, they are amplified by propagation to the vibrating member 20, causing the vibrating member 20 to vibrate significantly at the target frequency Ft. This allows the voltage generating unit 30, which will be described later and is attached to the vibrating member 20, to be appropriately deformed.

[0034] However, the target frequency Ft will vary depending on the structure of the building H. Therefore, it is necessary to adjust the configuration of the vibrating member 20, specifically the length of the vibrating member 20 and the weight of the weight portion 12, according to the structure of the building H. The method for doing so will be explained in more detail in the section "An Example of a Procedure for Selecting Components" below.

[0035] <Voltage generation unit> As shown in Figure 2, the voltage generating unit 30 is attached to the vibrating member 20. The voltage generating unit 30 is, for example, a piezoelectric element. In the example shown in Figure 2, the voltage generating unit 30 is attached along the outer surface of the vibrating member 20. As shown in Figure 4, the voltage generating unit 30 deforms in conjunction with the vibration of the vibrating member 20, thereby generating a voltage corresponding to the amount of deformation. The voltage generating unit 30 can be attached to any position on the vibrating member 20, as long as it can deform in conjunction with the vibration of the vibrating member 20. In the example shown in Figure 2, the voltage generating unit 30 is attached to the upper end of the vibrating member 20 in the extending direction, more specifically, below (directly below) the weight portion 12.

[0036] <Hochi Department> The notification unit 40 operates based on the voltage generated by the voltage generation unit 30 and notifies the magnitude of the ground surface G vibration in a manner corresponding to the magnitude of the voltage generated by the voltage generation unit 30. In the example shown in Figure 2, the notification unit 40 has, for example, a plurality (3) of light-emitting units 41. The light-emitting units 41 may be, for example, LED (Light Emitting Diode) illumination. The mounting position of the light-emitting unit 41 in the vibration notification device 10 is not particularly limited. In the example shown in Figure 2, multiple light-emitting units 41 are mounted, for example, on a plate-shaped guide member 60, which will be described later.

[0037] The notification unit 40 is not limited to a configuration having multiple light-emitting units 41, and any configuration capable of notifying the magnitude of vibration of the ground surface G is acceptable. For example, the notification unit 40 may have a display unit that displays a screen using the voltage generated by the voltage generating unit 30, and the display screen may show information regarding the magnitude of vibration of the ground surface G. Alternatively, the notification unit 40 may have a speaker that emits sound using the voltage generated by the voltage generating unit 30, and the speaker may emit a sound (melody) corresponding to the magnitude of vibration of the ground surface G.

[0038] In this embodiment, the notification unit 40 illuminates multiple light-emitting units 41 according to the magnitude of the voltage generated by the voltage generation unit 30. More specifically, the notification unit 40 changes the number of light-emitting units 41 that illuminate according to the magnitude of the voltage generated by the voltage generation unit 30.

[0039] Referring to Figure 5, each of the multiple light-emitting units 41 has a set voltage value that switches it from the off state to the on state, and this set value is different for each of the multiple light-emitting units 41. More specifically, the three light-emitting units 41 are each set to different setting values ​​E1, E2, and E3. In this embodiment, the setting values ​​E1, E2, and E3 increase in that order. If the magnitude of the voltage corresponding to the deformation amount of the voltage generation unit 30 is less than E1, none of the three light-emitting units 41 (light-emitting units 1 to 3 in Figure 5) will emit light, as shown in Figure 5. On the other hand, if the magnitude of the voltage corresponding to the deformation amount of the voltage generation unit 30 is E1 or greater and less than E2, only one of the three light-emitting units 41, the one with a set value of E1 (light-emitting unit 1 in Figure 5), will emit light. Furthermore, if the magnitude of the voltage corresponding to the deformation amount of the voltage generation unit 30 is E2 or greater and less than E3, two of the three light-emitting units 41, the two with set values ​​of E1 and E2 respectively (light-emitting units 1 and 2 in Figure 5), will emit light. And if the magnitude of the voltage corresponding to the deformation amount of the voltage generation unit 30 is E3 or greater, all of the three light-emitting units 41, i.e., the three light-emitting units 41 with set values ​​of E1, E2, and E3 respectively (light-emitting units 1 to 3 in Figure 5), will emit light. The user makes a judgment, for example, on the number of light-emitting parts 41 that emit light, such as a level of caution, a level requiring countermeasures, and a warning level, and reflects this appropriately in the design of building H.

[0040] Thus, the notification unit 40 has multiple light-emitting units 41, and the number of light-emitting units 41 that emit light is changed according to the magnitude of the voltage generated by the voltage generation unit 30. As a result, the user can easily grasp the magnitude of the ground surface G vibration by checking the number of light-emitting units 41 that emit light.

[0041] Furthermore, each of the multiple light-emitting units 41 has a set voltage value that switches it from the off state to the on state, and this set value is different for each of the multiple light-emitting units 41. As a result, by checking which of the multiple light-emitting units 41 is emitting light, the magnitude of the ground surface G vibration can be easily determined.

[0042] However, the voltage settings E1, E2, and E3 of each of the multiple light-emitting units 41 will change according to the permissible value (threshold) of the magnitude of vibration at the ground surface G. Regarding the permissible value of the magnitude of vibration, for example, if the prospective occupants of building H are concerned about environmental vibrations, the permissible value of the magnitude of vibration will be set to the stricter side. For this reason, the above settings of the light-emitting units 41 also need to be set to the stricter side. Conversely, if the prospective occupants of building H are not concerned about vibrations, it is possible to set the permissible value of the magnitude of vibration to the more relaxed side. For this reason, the above settings of the light-emitting units 41 can also be set to the more relaxed side. A specific method for changing the above setting value of the light-emitting unit 41 is to prepare multiple light-emitting units (LED lights) with different voltage levels for switching from the off state to the on state, and then select the appropriate light-emitting unit from among these multiple units. The method for selecting the light-emitting unit 41 will be explained in more detail in the section "An Example of a Component Selection Procedure" below.

[0043] <module> Module 50 is a known module equipped with, for example, an amplifier for driving the voltage generating unit 30 (piezoelectric element). Module 50 is located between the voltage generating unit 30 and the notification unit 40 and is electrically connected to both the voltage generating unit 30 and the notification unit 40. The position of module 50 is not particularly limited. In the example shown in Figure 2, module 50 is located, for example, at the upper end of the weight unit 12. Furthermore, module 50 may, for example, be equipped with communication equipment and a backup power supply to transmit information regarding the magnitude of vibrations at the ground surface G to other devices installed remotely.

[0044] <Guide Member> As shown in Figure 3, the guide member 60 has a guide surface 61a that extends in the vibration direction of the vibrating member 20 (the first direction in Figure 3), and guides the vibrating member 20, which vibrates in the vibration direction, with the guide surface 61a. In this embodiment, the guide member 60 is, for example, a rectangular plate member and is supported by legs 13 rising from the base 11, as shown in Figure 2. The guide member 60 has an opening 61 through which the vibrating member 20 is inserted, and the opening 61 is, for example, an elongated hole with the first direction as its longitudinal direction. The portion of the edge of the opening 61 that extends in the first direction corresponds to the guide surface 61a. Thus, the vibration notification device 10 is equipped with a guide member 60 that guides the vibrating member 20, which vibrates in the direction of vibration, with a guide surface 61a, so that the vibrating member 20 can be vibrated appropriately in the direction of vibration. Furthermore, the guide member 60 can be any member having a guide surface 61a, and does not necessarily need to have an opening 61.

[0045] <<An example of a procedure for selecting component parts>> Next, an example of the procedure for selecting the components of the vibration notification device 10, more specifically the vibrating member 20, the weight 12, and the light-emitting unit 41, will be described. First, the user determines the direction in which the vibration will be measured (i.e., the vibration direction). The possible vibration directions include all horizontal directions except the vertical direction. In this embodiment, the user has determined the first direction as the vibration direction. Next, the user calculates the target frequency Ft, which corresponds to the natural frequency of building H in the direction of vibration. The target frequency Ft may be calculated, for example, based on the design model of building H. Candidates for the target frequency Ft include, for example, 3Hz, 5Hz, 8Hz, and 10Hz. Next, the user calculates the length of the vibrating member and the weight of the weight portion that result in the maximum vibration of the vibrating member 20 when minute vibrations of the target frequency Ft are transmitted to the vibrating member 20 at the ground surface G, given the determined target frequency Ft. Then, the user determines the corresponding vibrating member and weight portion as components of the vibration notification device 10. Specifically, a vibrating member is selected as the vibrating member 20 from among several pre-prepared vibrating members of different lengths. Similarly, a weight is selected as the weight 12 from among several pre-prepared weights of different weights.

[0046] Next, the user determines, for example, the permissible magnitude of vibration at ground level G based on requests from prospective residents of building H, and then selects a light-emitting unit (LED lighting) that corresponds to that permissible value. Specifically, the user selects the appropriate light-emitting unit 41 from among several light-emitting units, each having a different voltage setting for switching from the off state to the on state. Subsequently, the user assembles the vibration notification device 10 using the selected vibrating member 20, weight 12, and light-emitting unit 41.

[0047] In this way, the vibration notification device 10 can appropriately vibrate the vibrating member 20 at the target frequency Ft by adjusting the length of the vibrating member 20 and the weight of the weight portion 12. Furthermore, the user can assemble the vibration notification device 10 by selecting the appropriate parts from the pre-prepared vibrating members, weights, and light-emitting parts. Therefore, the vibration notification device 10 can be easily assembled without requiring specialized knowledge. Furthermore, by selecting the appropriate light-emitting part from among multiple light-emitting parts, the permissible magnitude of vibration at the ground surface G can be adjusted, thereby appropriately reflecting the wishes of the prospective residents of the building H.

[0048] <<Regarding the effects of the vibration alarm device according to this embodiment>> As explained above, when the vibration notification device 10 is installed on the ground surface G, minute vibrations at the target frequency Ft among the environmental vibrations of the ground surface G are amplified by being transmitted to the vibrating member 20 via the base 11, causing the vibrating member 20 to vibrate significantly. As a result, the voltage generating unit 30 attached to the vibrating member 20 deforms in conjunction with the vibration of the vibrating member 20, generating a voltage corresponding to the amount of deformation. Consequently, the notification unit 40 is activated by the voltage generated by the voltage generating unit 30, and the magnitude of the vibration is notified in a manner corresponding to the magnitude of that voltage.

[0049] Thus, in this embodiment, as long as the vibration notification device 10 is installed on the ground surface G of the planned construction site of building H, the magnitude of vibrations on the ground surface G will be notified. Therefore, it is not necessary to measure and analyze the magnitude of ground surface G vibrations using specialized equipment that requires expert knowledge, such as publicly known pollution vibration meters. Furthermore, since it does not require the use of information processing equipment such as PCs, the magnitude of vibrations can be easily determined without much effort. Thus, with the vibration notification device 10, the magnitude of vibration at the ground surface G of the planned construction site of building H can be easily determined without requiring specialized knowledge.

[0050] Furthermore, the vibration notification device 10 is more effective when used, for example, to easily grasp the magnitude of vibration without spending time (effort) before performing high-precision vibration measurements.

[0051] Furthermore, the vibration notification device 10 only needs to be able to grasp the magnitude of the vibration at the target frequency Ft among the environmental vibrations. For this reason, it can be made simpler than, for example, a configuration that grasps the magnitude of all vibration components included in the environmental vibrations. And because it is made simpler, it can be made compact and, as a result, easily carried.

[0052] Furthermore, when using publicly known pollution vibration meters, etc., it is necessary to prepare a power supply. On the other hand, in the vibration notification device 10, the notification unit 40 operates using the voltage generated by the voltage generation unit 30, so no power supply is required.

[0053] <<Regarding other embodiments>> Although one embodiment of the vibration notification device and its usage method of the present invention has been described above, the above embodiment is merely an example to facilitate understanding of the present invention and does not limit it. In other words, the present invention can be modified and improved without departing from its spirit. Furthermore, it goes without saying that the present invention includes equivalents thereof.

[0054] In the above embodiment, the vibration notification device 10 was equipped with only one vibrating member 20, as shown in Figure 2. However, it is not limited to this, and for example, as shown in Figure 6, the vibration notification device 10A may be equipped with two or more (two in Figure 6) first vibrating members 21A that vibrate in the same vibration direction (first direction in Figure 6). In addition, two or more (two in Figure 6) voltage generating units 30 may be attached to each first vibrating member 21A.

[0055] In this case, the notification unit 40 may notify the magnitude of the vibration in the vibration direction based on the magnitude of the voltage generated by each of the two or more voltage generating units 30. Specifically, the notification unit 40 may, for example, notify the magnitude of vibration in the vibration direction based on the maximum value of the voltages generated by each voltage generation unit 30. Alternatively, the notification unit 40 may notify the magnitude of vibration in the vibration direction based on the sum of the voltages generated by each voltage generation unit 30. Furthermore, for example, in the example shown in Figure 6, one of the two first vibrating members 21A may be adjusted to vibrate at the lower limit of the target frequency Ft (e.g., 2.5 Hz), and the other first vibrating member 21A may be adjusted to vibrate at the upper limit of the target frequency Ft (e.g., 3.5 Hz). The magnitude of vibration in the vibration direction may then be reported based on the maximum value of the voltages generated by each voltage generating unit 30 or the sum of the voltages generated by each voltage generating unit 30. Thus, by using two or more first vibrating members 21A in the vibration notification device 10A, the magnitude of vibration at the ground surface G can be grasped more appropriately than when using a single vibrating member 20.

[0056] Furthermore, in the above embodiment, the vibration notification device 10 was equipped only with a vibrating member 20 that vibrates in a first direction. However, it is not limited to this, and for example, as shown in Figure 6, the vibration notification device 10A may be equipped with a first vibrating member 21A that vibrates in a first direction and a second vibrating member 22A that vibrates in a second direction. In this case, the length of the first vibrating member 21A and the weight of the weight portion 12 attached to the first vibrating member 21A are adjusted to match the target frequency Ft in the first direction. Similarly, the length of the second vibrating member 22A and the weight of the weight portion 12 attached to the second vibrating member 22A are adjusted to match the target frequency Ft in the second direction. In other words, the first vibrating member 21A, the second vibrating member 22A, and the weight portions 12 attached to them are configured to vibrate at the target frequency Ft in their respective directions.

[0057] Furthermore, the vibration notification device 10A may include two or more voltage generating units 30, each attached to the first vibrating member 21A and the second vibrating member 22A. The voltage generating unit 30 attached to the first vibrating member 21A generates a first voltage corresponding to the vibration of the first vibrating member 21A. On the other hand, the voltage generating unit 30 attached to the second vibrating member 22A generates a second voltage corresponding to the vibration of the second vibrating member 22A. As a result, the notification unit 40 notifies the magnitude of vibration in the first direction according to the magnitude of the first voltage, and the magnitude of vibration in the second direction according to the magnitude of the second voltage. In the example shown in Figure 6, the notification unit 40 has a plurality (three in Figure 6) of light-emitting units 42A and a plurality (three in Figure 6) of light-emitting units 43A. The notification unit 40 changes the number of light-emitting units 42A that emit light according to the magnitude of the first voltage. On the other hand, the notification unit 40 changes the number of light-emitting units 43A that emit light according to the magnitude of the second voltage.

[0058] Thus, with the vibration notification device 10A, the magnitude of vibration at the ground surface G can be appropriately determined for both the first and second directions.

[0059] Furthermore, as shown in Figure 6, the vibration notification device 10A may be equipped with a regulating member 70A (stopper) that restricts vibration in the respective vibration directions (first direction and second direction) of the first vibrating member 21A and the second vibrating member 22A. The regulating member 70A is positioned adjacent to the vibrating member in the direction of vibration of the vibrating member. In the example shown in Figure 6, the regulating member 70A is positioned adjacent to the first vibrating member 21A in the first direction, more specifically, between two first vibrating members 21A that are spaced apart in the first direction. In addition, the regulating member 70A is positioned adjacent to the second vibrating member 22A in the second direction, more specifically, between two second vibrating members 22A that are spaced apart in the second direction.

[0060] The shape of the restricting member 70A is not particularly limited, and any shape that can restrict the vibration of the first vibrating member 21A and the second vibrating member 22A in their respective vibration directions is acceptable. The material of the restricting member 70A is also not particularly limited, and may be, for example, a resin material, a metal material, a rubber material, a structure containing air (e.g., a foamed material and a porous material), or a combination thereof. However, in order to prevent damage to the first vibrating member 21A and the second vibrating member 22A, the restricting member 70A may be made of a material that is softer than the first vibrating member 21A and the second vibrating member 22A and functions as a cushioning material.

[0061] The regulating member 70A is attached to the vibration alarm device 10A during its transport, and is removed from the vibration alarm device 10A when it is installed on the ground surface G of the construction site. This makes it possible to suppress the occurrence of malfunctions such as the vibration component of the vibration alarm device 10A deforming beyond its permissible limit during transport, interfering with other parts, and suffering damage.

[0062] Furthermore, as shown in Figure 6, the vibration alarm device 10A may also be equipped with a cover 80A that covers the components constituting the vibration alarm device 10A, specifically the vibration member 20, voltage generating unit 30, alarm unit 40, module 50, and guide member 60, etc. This makes it possible to prevent, for example, the components of the vibration alarm device 10 from being damaged from the outside during transportation of the vibration alarm device 10A. The cover 80A, like the regulating member 70A, is attached to the vibration alarm device 10A during transport and removed from the vibration alarm device 10A when it is installed on the ground surface G of the construction site. [Explanation of Symbols]

[0063] 10,10A Vibration alarm device 11. Base 12 Weight 13 Legs 20 Vibrating Member 21A First vibrating member 22A Second vibrating member 30 Voltage generation unit 40 Hochi Department 41, 42A, 43A Light-emitting section 50 modules 60 Guide members 61 Opening 61a Guide surface 70A Regulating Member 80A Cover Ft Target frequency G Ground surface H building

Claims

1. A vibration notification device that notifies the magnitude of vibrations at the ground surface of a planned building construction site, When the ground surface vibrates, a vibrating member vibrates at a frequency corresponding to the building's design, A voltage generating unit is attached to the vibrating member and deforms in conjunction with the vibration of the vibrating member, thereby generating a voltage corresponding to the amount of deformation. A vibration notification device comprising: a notification unit that notifies the magnitude of vibration in a manner corresponding to the magnitude of the voltage generated by the voltage generation unit.

2. The system further comprises a base installed on the ground surface and supporting the vibrating member, and a weight attached to the vibrating member, The base is capable of having a vibrating member, selected from a plurality of vibrating members of different lengths, attached to it. The vibration notification device according to claim 1, wherein the vibrating member is capable of having a weight portion selected from a plurality of weight portions of different weights attached to it.

3. The vibrating members include two or more vibrating members that vibrate in the same direction, Each of the aforementioned vibrating members is equipped with two or more voltage generating units, The vibration notification device according to claim 1, wherein the notification unit notifies the magnitude of the vibration in the vibration direction based on the magnitude of the voltage generated in each of the two or more voltage generating units.

4. When two intersecting directions along the ground surface are designated as the first direction and the second direction, the vibrating member comprises a first vibrating member that vibrates in the first direction and a second vibrating member that vibrates in the second direction, The voltage generating unit, which is attached to the first vibrating member and the second vibrating member respectively, comprises two or more voltage generating units, Of the two or more voltage generating units, the voltage generating unit attached to the first vibrating member generates a first voltage corresponding to the vibration of the first vibrating member. Of the two or more voltage generating units, the voltage generating unit attached to the second vibrating member generates a second voltage corresponding to the vibration of the second vibrating member. The vibration notification device according to claim 1, wherein the notification unit notifies the magnitude of vibration in the first direction according to the magnitude of the first voltage and the magnitude of vibration in the second direction according to the magnitude of the second voltage.

5. The vibration notification device according to claim 1, wherein the notification unit has a plurality of light-emitting units, and the number of light-emitting units that emit light is changed according to the magnitude of the voltage generated by the voltage generating unit.

6. Each of the aforementioned multiple light-emitting units is configured with a voltage setting that switches it from an off state to an on state. The vibration notification device according to claim 5, wherein the setting value is different for each of the plurality of light-emitting units.

7. The vibration notification device according to claim 1, further comprising a guide member having a guide surface extending in the vibration direction of the vibrating member, and guiding the vibrating member vibrating in the vibration direction with the guide surface.

8. The vibration notification device according to claim 1, further comprising a regulating member positioned adjacent to the vibrating member in the vibration direction of the vibrating member, which regulates the vibration of the vibrating member in the vibration direction.

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