JP2012084080A - Alarm mat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an alarm mat that can easily be manufactured with low costs and without requiring a power source.SOLUTION: In an alarm mat, a cover sheet 3 which is integrally molded by a more flexible elastic material than a flat substrate 2 composed of an elastic material and having a plurality of semi-cylindrical projection parts 4 which have cavities inside and which project to the upper surface side is laminated on the substrate 2. An opening part 5 is provided on at least one end part 51 of the projection parts 4, a whistle 6 which emits sound by the inflow and outflow of air is fitted to the opening part 5, and a holding part 7 for holding the whistle 6 is provided in the projection parts 4.

Description

  The present invention relates to an alarm mat laid on the surrounding floor surface of a dangerous area that can be entered, for example, in a factory or a construction work site. When a person steps on the mat, the alarm mat emits an alarm sound. The present invention relates to an alarm mat that can prevent entry into an area.

  In Patent Document 1 below, a large number of hemispherical protrusions are provided on a substrate made of a veneer plate, and the protrusion and the sealed cylindrical body on the bellows provided in the cavity in the protrusion are ringed by the inflow and outflow of air. An alarm mat that eliminates the need for a power supply with a whistle is disclosed. In Patent Document 2 below, a large number of elastically deformable hemispherical protrusions are provided on a substrate made of a plywood plate, a sealed cylindrical body is laid in the protrusion, and a ringing sound is generated as the sealed cylindrical body is deformed. There is disclosed an alarm mat that is provided with a whistle and that does not require a power source composed of a protective member that surrounds the periphery of the lower part of the sealed cylindrical body. Patent Document 3 below discloses an alarm mat in which a cavity is provided in an elastic plate, a sponge having air permeability is filled in the cavity, and a lead whistle is inserted and fixed in a through hole provided in the elastic plate. ing.

Japanese Patent No. 2751659 Japanese Patent No. 2903854 Utility Model Registration No. 3102048

  Conventional alarm mats such as those shown in Patent Documents 1 and 2 must be provided with a sealed cylindrical body and a whistle in a large number of protrusions, respectively. It takes. Further, the alarm mat shown in Patent Document 3 has a large volume of the cavity provided in the elastic plate, and since the amount of elastic deformation when the alarm mat is stepped on by a human foot is small compared to the volume, the whistle from the cavity. The momentum of the air flowing out through the door may be weak and no sound may be heard. In addition, since the area of the elastic plate that forms the cavity is large, the elastic plate that has been stepped on with the foot cannot be quickly restored to its original shape, and the whistling sound is not stable. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an alarm mat that does not require a power source that is cheaper, easier to manufacture, and has a stable whistle sound. is there.

The present invention includes a flat base material 2 made of an elastic material, and a plurality of semi-cylindrical protrusions 4 projecting toward the upper surface side, each of which has a hollow inside. The cover sheet 3 integrally molded with a softer elastic material is laminated, an opening 5 is provided at at least one end 51 of each of the protrusions, and a whistle 6 that emits sound by the inflow and outflow of air into the opening. The holding portion 7 that is inserted and holds the whistle is provided in the protruding portion.

In addition, the present invention has a rectangular flat base 2 made of an elastic material, and a plurality of semi-cylindrical protrusions 4 that are formed in the base 2 and protrude from the upper surface side, each having a hollow inside. The cover sheet 3 integrally molded with an elastic material softer than the base material 2 is bonded together, one of the plurality of protrusions is provided on the diagonal line of the base material, and the other protrusion part is on the diagonal line. A whistle 6 that is provided in parallel with a predetermined width apart from the provided protrusions, has an opening 5 at at least one end 51 of each of the protrusions, and emits a sound when air flows in and out of the opening. Inserting and providing a holding portion 7 for holding the whistle in the projecting portion, and attaching a flat and elastically deformable upper surface cover material 8 of a color different from the cover sheet to the upper surface between the plurality of the projecting portions, Alarm mats on the base material 2 and the cover sheet 3 It is characterized in that a fitting opening 9 for causing fitting the joint member 10 joining.

Furthermore, the present invention is characterized in that when the cover sheet 3 is formed, the holding portion 7 is integrally formed in the protruding portion 4.

  According to the alarm mat of the present invention, when a person steps on the semi-cylindrical protrusion, the protrusion is compressed and deformed, and when the air in the protrusion flows out to the outside due to the compression deformation, the outflow of air Causes the whistle to ring. In addition, when the foot stepping on the protrusion is retracted, the compression deformation of the protrusion quickly elastically restores, so air flows into the protrusion at the time of the restoration, so the whistle sounds again and the alarm mat continuously Even if the pedal is stepped on, the projecting portion is compressed and deformed again, so that the whistling is stabilized. Further, when the end of the protruding portion provided with the whistle is stepped on by a person, the whistle is prevented from being crushed by the holding unit. Moreover, it is easy to visually recognize a dangerous area by providing an upper surface cover material of a color different from that of the cover sheet between the protruding portions. And since the number of parts is significantly smaller than before, manufacturing is easy, and manufacturing cost and maintenance cost are low.

The top view which shows the alarm mat which concerns on this invention. The front view which shows the alarm mat which concerns on this invention. The enlarged view of the dashed-two dotted line circle part in FIG. The perspective view which shows the holding | maintenance part which concerns on this invention in the state which faced up the protrusion part 4 of the cover sheet 3 on the base material 2, and faced up. The schematic diagram at the time of connecting the two alarm mats which concern on this invention. FIG. 2 is an enlarged sectional view taken along line AA in FIG. 1. The two views which show the joint member which connects the alarm mats which concern on this invention. The top view which shows embodiment which connected two alarm mats based on this invention. The top view which shows embodiment which connected the several alarm mat which concerns on this invention.

  An embodiment of the present invention will be described with reference to the drawings. 1 and 2 show an alarm mat 1 according to an embodiment of the present invention in a plan view and a front view. In these drawings, reference numeral 2 denotes a flat and rectangular base material 2 made of an elastic material such as rubber or synthetic resin, and a cover sheet made of rubber or synthetic resin that is softer than the base material 2 from the side surface to the upper surface. The cover sheet 3 is covered with a double-sided adhesive tape or an adhesive, and the cover sheet 3 is integrally formed with a plurality of semi-cylindrical protrusions 4 each having a hollow interior and protruding upward. By making the protrusion 4 into a semi-cylindrical shape, the pressure applied to the protrusion 4 when stepped on with a foot can be properly dispersed to prevent extreme deformation, and the pressure is removed when the foot is retracted. When this occurs, the protrusion 4 is easily elastically restored.

One of the protrusions 4 is provided on a diagonal line of the base material 2 having a square shape, and the other protrusion part is parallel to the protrusion part 4 provided on the diagonal line at a predetermined interval. Is provided. Further, a flat and elastically deformable upper surface cover material 8 having a color different from that of the cover sheet 3 is attached to a flat portion having a predetermined interval between the protruding portions 4.

3 and 6 are enlarged views around the end portion 51. As shown in FIG. 3, the groove part 31 is provided in the flat part of the cover sheet 3 to which the upper surface cover material 8 is adhered. As shown in FIG. 6, the side surface portion 32 of the cover sheet 3 is located outside the base material 2 and is formed so as to surround the base material 2. By doing so, the adhesiveness of the base material 2 and the cover sheet 3 increases, and an air leak can be prevented.

As shown in FIGS. 3 and 6, an opening 5 having a shape matching the cross-sectional shape of the whistle 6 is provided at at least one end 51 of the projecting portion 4, and the whistle 6 is fitted into the opening 5.

  The whistle 6 is compressed and deformed when the protrusion 4 is stepped on by a person, and the whistle sounds by the outflow of air from the protrusion 4 caused by the compression deformation. When the stepped foot is withdrawn from the projecting portion 4, the projecting portion 4 is quickly elastically restored, and the whistle 6 rings again due to the inflow of air to the projecting portion 4 generated at that time. In addition, since the protrusion part 4 is elastically restored rapidly, even if a person steps on the protrusion part 4 continuously, the whistle 6 rings continuously. In other words, even when a person steps on the protrusion 4 continuously, the inflow and outflow of air occurs stably. The whistle 6 may emit a sound in the case of either outflow or inflow of air from the protrusion 4.

  Further, the whistle 6 is held by a holding unit 7 shown in FIG. The holding portion 7 has a C-shaped groove 71, and the whistle 6 is accommodated in the C-shaped groove 71. The holding portion 7 protects against excessive pressure that would cause the whistle 6 to be crushed when a person steps on the end 51 and the whistle 6.

In addition, when a person steps on the alarm mat 1, there is a fear that the toe may hit the end 51. Therefore, each end 51 is inclined and directly connected to the whistle 6 to prevent tripping. The central portion of the end 51 is recessed inward so that the toes do not hit. In the present embodiment, the end 51 is inclined at about 50 degrees from the horizontal plane except for the recess.

The base sheet 2 and the cover sheet 3 bonded thereto are provided with a total of eight fitting openings 9 for fitting the joint member 10 shown in FIG. The joint member 10 is formed of an elastic material such as rubber or synthetic resin. FIG. 5 is a schematic diagram when the alarm mats 1 are joined using the joint member 10, FIG. 8 shows a case where two alarm mats 1 are joined, and FIG. 9 shows a case where three or more alarm mats 1 are joined together. An example is shown. In particular, FIG. 8 shows an example of a case where a person steps on the right foot on the alarm mat 1 connected two sheets. When connecting the alarm mats 1, the convex portion 11 of the joint member 10 is inserted into the fitting port 9 from below the one alarm mat 1, and the other convexity of the joint member 10 is inserted into the fitting port 9 of the other alarm mat 1. By inserting the portion 11, the alarm mats 1 can be connected to each other.

In the present embodiment, the base material 2 and the cover sheet 3, and the cover sheet 3 and the upper surface cover material 8 are bonded to each other with a double-sided adhesive tape or an adhesive, and it is not necessary to use parts such as bolts and nuts. Is very simple and very easy to manufacture.

The assembly process of the alarm mat 1 will be described below. First, the base material 2 is molded by a conventionally known molding method. Next, the cover sheet 3 and the holding portion 7 are integrally formed using conventionally known compression molding. When integrally molding, the bottom surface of the cover sheet 3 and the bottom surface of the holding portion 7 are flush with each other to facilitate the bonding between the base material 2 and the cover sheet 3 and the bonding between the base material 2 and the holding portion 7. . Since the bottom surface of the holding part 7 and the base material 2 are bonded, there is no possibility that the holding part 7 is displaced even when the vicinity of the end 51 is stepped on with a foot. The opening 5 is perforated when the cover sheet 3 is formed.

Next, the whistle 6 is pushed in from the left to the right as viewed in FIG. As shown in FIG. 3, since the opening 5 and the C-shaped groove 71 of the holding part 7 are made to correspond to each other, the whistle 6 is accommodated in the C-shaped groove 71. And the cover sheet 3 and the base material 2 are bonded together using a double-sided adhesive tape or an adhesive.

Then, the fitting opening 9 is drilled, and the upper surface cover material 8 is attached in the groove portion 31. In this embodiment, the base 2 and the cover sheet 3 are notched at the portion that becomes the fitting opening 9. Thus, after the base material 2 and the cover sheet 3 are bonded together, the fitting opening 9 can be easily perforated by a human hand (finger). In addition to making a notch, only the adhesive surface is left very thin so that a groove is provided in the portion that becomes the fitting opening 9 at the time of molding so that the fitting opening 9 can be easily drilled by a human hand (finger). May be. Or it can provide at the time of shaping | molding each of the base material 2 and the cover sheet 3, and can also pierce | pierce using a cutting tool etc. after bonding.

By providing one of the protrusions 4 on the diagonal of the base material 2 that forms a square and providing the other protrusions 4 in parallel with the protrusions 4 provided on the diagonal at a predetermined interval, an alarm is provided. Projections having different volumes can be formed on the mat 1. For example, when a diagonal protrusion and an adjacent protrusion are stepped on at the same time, the amount of air flowing in and out of each protrusion is different. The loudness and pitch of the whistle provided in the section are different and the warning effect is enhanced.

When a plurality of alarm mats 1 are joined together by attaching an upper surface cover material 8 having a color different from that of the cover sheet 3 to a flat portion having a predetermined interval between the projecting portions 4, as shown in FIG. It is possible to form various patterns that are unified. For example, by setting the cover sheet 3 to black and the top cover 8 to yellow, the alarm mat 1 can form a tiger pattern that calls attention and visually prevents entry to restricted areas. Can do. In FIG. 9, the joint member and the fitting port are not shown.

In the present embodiment, the base material 2 and the cover sheet 3, and the cover sheet 3 and the upper surface cover material 8 are bonded to each other with a double-sided adhesive tape or an adhesive, and it is not necessary to use parts such as bolts and nuts. Is very simple and very easy to manufacture.

  The alarm mat 1 and the floor on which it is laid may not be fixed using a double-sided adhesive tape or the like. In particular, when the base material 2 is made of rubber, even if the alarm mat 1 is not fixed to the floor, moderate friction is generated between them, and it is difficult for the alarm mat to be displaced from the place where the alarm mat is installed. Installation is possible.

  The present invention relates to an alarm mat laid on the front side of a place where entry is prohibited, for example, in a factory or a construction work site, and on the surrounding floor surface. When a person steps on the mat, the alarm is issued and the entry is performed. The present invention relates to an alarm device that can prevent entry to a prohibited place.

DESCRIPTION OF SYMBOLS 1 ... Alarm mat 2 ... Base material 3 ... Cover sheet 4 ... Projection part 5 ... Opening part 6 ... Whistle 7 ... Holding part 8 ... Top cover material 9 ... Insertion slot 10 ... Joint member

Claims (3)

A flat substrate made of an elastic material;
A cover sheet integrally formed of an elastic material softer than the base material having a plurality of semi-cylindrical protrusions each having a hollow inside and protruding to the upper surface side is bonded to the base material,
Providing an opening at at least one end of each of the protrusions;
Insert a whistle that emits sound by the inflow and outflow of air into the opening,
An alarm mat comprising a holding portion for holding the whistle in the protruding portion.
The substrate forms a square;
One of the plurality of protrusions is provided on the diagonal of the base material, and the other protrusion is provided in parallel with a predetermined width from the protrusion provided on the diagonal,
A flat and elastically deformable upper surface cover material of a color different from that of the cover sheet is attached to the upper surface between the plurality of protrusions,
The alarm mat according to claim 1, wherein a fitting port is provided for fitting a joint member for joining the alarm mats to the base material and the cover sheet.
The alarm mat according to claim 2, wherein, when the cover sheet is formed, the holding portion is integrally formed in the projecting portion.

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