JPH0437511Y2 - - Google Patents

Description

[Detailed Description of the Invention] {Industrial Application Field} This invention relates to a joint for artificial turf or mats made to unit size, or floor coverings such as slats used in bathrooms.

{Prior Art} In artificial turf, pine, or slatted rugs that are configured to be used by connecting multiple unit rugs to a desired size, the joints are made of synthetic resin that can be elastically deformed. For example, one composed of a cylindrical connecting body and an insert inserted into it,
It is disclosed in Japanese Utility Model Application No. 58-185982.

The mat and other joints disclosed in the above-mentioned publication have a cylindrical connecting body on each of two consecutive sides of a plate-like body, and an insert body to be inserted into the connecting body on each of the other two sides. It has been established. The connecting body has a locking step formed on its inner circumferential surface, while the insert has a locking protrusion at its tip that is locked to the step, and The entire insert is of solid construction.

Also known is a joint for unit plates for floor coverings disclosed in Japanese Utility Model Application Publication No. 59-163031.

The joint of this unit plate is also similar to the joint disclosed in the above-mentioned Japanese Utility Model Publication No. 58-185982, and includes a cylindrical connecting body with a stepped portion on the inner periphery, and a cylindrical connecting body that can be inserted into the connecting body and the stepped portion. The insert body is provided with a locking protrusion that is locked to the insert body. The insert body has a cylindrical shape with a bottom and an opening on the side of the locking protrusion.

In both of these joints, an insert body is inserted into a connecting body, and the locking protrusion of the insert body is locked in a step of the connecting body, and the outer diameter of the locking protrusion is formed larger than the inner diameter of the step. Therefore, when inserting the insert body into the connecting body, the insert body is pushed somewhat strongly to elastically deform one or more of the connecting body, the insert body, and the locking protrusion, and after the locking protrusion is inserted or passed through the connecting body, the locking protrusion is returned to its original state and locked in the step of the connecting body. The insert body is inserted into the connecting body by hand by an operator.

{Problems to be solved by the invention} Among the above-mentioned conventional joints, the joint disclosed in Japanese Utility Model Application Publication No. 185982/1982 has a solid insert body, so it is difficult to insert the insert body into the connecting body. When the insertion body is strongly pressed to do so, the insert body hardly undergoes elastic deformation, and only the locking protrusion and the connecting body that protrude from it undergo elastic deformation. Therefore, since there are only a few parts that can be elastically deformed, each part that can be deformed needs to be elastically deformed relatively largely, which increases the force required by the operator when inserting the insert into the connecting body. Therefore, as the number of unit mats and the like to be connected increases, there is a problem in that the effort required increases and the work efficiency decreases.

In addition, since the locking protrusion is largely elastically deformed,
When it passes through the connecting body and is released, it is difficult to return to the original state sufficiently, and the locking protrusion does not lock onto the step of the connecting body, causing them to separate unnecessarily. There is also.

In addition, in the joint of the unit plate for bedding disclosed in Japanese Utility Model Application Publication No. 59-163031, since the insert body is formed in the shape of a cylinder with a bottom, when a force is applied from almost the entire circumference, Like the solid insert described above, it does not undergo almost any elastic deformation, and even when force is applied from two opposite directions to the insert, the portion of the insert that is perpendicular to the force does not deform the insert. When inserting the insert into the connecting body,
The forces required to deform the insert are still considerable. For this reason, when the insert is inserted into the connecting body, the only parts that undergo elastic deformation are the locking protrusion and the connecting body, and the force required to insert the insert becomes quite large. There is a problem of poor performance and reduced efficiency. Furthermore, since the amount of elastic deformation of the locking protrusion increases, its return tends to be insufficient, and there is also the problem that the locking force of the locking protrusion against the stepped portion of the connecting body becomes small.

This invention solves the above-mentioned problems by reducing the force required to insert the insert into the connecting body, making it easier and more efficient to connect mats, etc. It is an object of the present invention to provide a joint for a rug, in which the amount of elastic deformation of the locking protrusion is reduced, and the locking protrusion can be reliably locked to the stepped portion of the connecting body.

{Means for solving the problem} The rug joint of this invention is a cylindrical connecting body that is made to protrude outward from each of two consecutive sides of a square plate-shaped body made of soft synthetic resin. is provided with its axis line in the thickness direction of the plate-like main body, and an insertion connection body that can be inserted into the connection body is provided on each of the other two continuous sides, and this insertion connection body is provided. In the joint for a rug, a locking protrusion that is locked to a locking stepped portion of the connecting body protrudes from a lower end of the insertion connecting body on both sides in a direction parallel to the edge of the plate-shaped main body, the insertion connecting body The end face of the body provided with the locking protrusion is provided with a groove extending perpendicularly to the edge of the plate-like body on which the insertion connector is provided, one end of the groove is closed, and the groove is closed. The total length of the insertion connecting body in the longitudinal direction is set smaller than the inner dimension of the connecting body in the same direction.

{Function} This rug joint connects the plurality of unit rugs to a required size by inserting the insertion and connection bodies of adjacent unit rugs into the connecting body. and,
Each locking protrusion creates resistance to the insertion of the insertion connector into the connector, so the insertion connector is inserted into the connector by pushing a little harder, but the end face of the insertion connector with the locking protrusion is provided with a groove with one end closed. Therefore, when the insertion coupling body is inserted into the connection body, the end portion thereof is elastically deformed in the direction in which the groove becomes narrower and becomes slightly smaller, and the opposing side wall portions of the connection body also extend outward. Deforms elastically.

That is, both sides of the connecting body are pushed and elastically deformed in the outward direction, and the locking protrusion and the insertion connecting body are each elastically deformed so that the insertion connecting body is inserted into the connecting body and engaged. When the locking protrusion passes through the locking step of the connecting body, the connecting body, the insertion coupling body, and the locking protrusion each return to their original states, and each locking protrusion passes through the locking step of the connecting body. The connecting body and the insertion connecting body are connected so as not to be separated unnecessarily.

Moreover, since the total length of the insertion connection body in the longitudinal direction of the groove is set smaller than the inner dimension of the connection body in the same direction, the resistance when inserting the insertion connection body into the connection body is This is only in the direction in which the locking protrusion of the insertion connector is provided, and in the direction of the locking protrusion, the insertion connector is also elastically deformed by the groove as described above. Smooth insertion operations.

Since a part of the groove is closed and the elastic deformation of the insertion coupling body at the end is somewhat restricted, when the connecting body and the insertion coupling body are connected, the elastically deformed insertion body is prevented from returning to its original state. Because it advances quickly and reliably, it ensures that the locking protrusion is locked to the locking step of the connecting body, and prevents separation due to deformation of the insertion connector when an external force is applied in the direction of separating them. do.

{Example} The first example of the rug joint of this invention will be described in the following examples.
The artificial turf shown in Figure 5 will be explained.

In the figure, reference numeral 1 denotes a plate-shaped main body constituting the artificial turf, which is made of synthetic resin that can be elastically deformed into a net shape with a large number of holes. Reference numeral 2 denotes a connecting body (see FIG. 5) provided on each of two continuous sides of the plate-like body 1 so as to protrude outward from the body, and the axis thereof is arranged in the thickness direction of the plate-like body 1. The edge portion 2a on the front side of the plate-like main body 1 is curved.

Reference numeral 3 denotes a locking step provided on almost the entire inner circumference of the connecting body 2. The hole 4 formed inside this step 3 is formed so that its inner diameter is large in the direction in which the connecting body 2 projects and is small in the direction orthogonal to this projecting direction. .

Reference numeral 5 denotes semi-cylindrical supports protruding from the back surface of each of two consecutive sides of the plate-like main body 1 where the connecting body 2 is not provided (see FIG. 5).
A cubic insert 6 (see FIG. 1) is provided with its concave curved surface facing the outside of the plate-like main body 1 and integrally formed on the outside of each support 5. 5 and the insert body 6 constitute an insertion connection body. The insert body 6 may have any shape, such as a round bar shape, as long as it can be inserted into the hole 4 of the connecting body 2, and the support body 5 may also have a rectangular cross section.

The support body 5 and the insert body 6 are integrally constructed.
As shown in FIG. 1, the supporting body 5 and the inserting body 6 are constructed so that they can be inserted together into the connecting body 2, and the dimension of the short diameter side of the hole 4 thereof is the same as that of the connecting body 2. The connecting body 2 is configured to be movable in the hole 4 in the same direction as the protruding direction of the connecting body 2 by making the total dimension of the long axis smaller than the long axis.

Reference numeral 7a denotes locking projections protruding outward from the lower ends of both sides of the insert body 6, which are formed so as to be able to lock onto the step portion 3, and are connected to the locking projections 7a, 7a. Then, a locking protrusion 7b is formed on the surface of the insert body 6 in the protruding direction.
are formed, and the locking protrusions 7a, 7a have slopes 8 on their lower surfaces to serve as guides into the connecting body 2, and to prevent elastic deformation of the locking protrusions 7a, 7a when the connecting body 2 passes through. is facilitated. Note that the locking protrusion 7b is not provided, and the locking protrusion 7b is not provided.
It is also possible to provide only a and 7a.

Reference numeral 9 denotes a groove formed between the locking protrusions 7a and 7b on the lower end surface of the insertion connector 6, and one end of which is closed by the support 5.

The artificial turf is constructed by integrally erecting needle-like protrusions 10 on almost the entire surface of the plate-like main body 1, and erecting strut members 11 at appropriate intervals on the back surface.

To connect artificial turf or other objects using this joint, the insert body 6 is inserted into the connecting body 2 from the locking protrusions 7a and 7b using the slope 8 as a guide, in the same way as the conventional joints such as mats. At the time of this insertion, the inserter 6 is lightly pressed. Then, both sides of the connecting body 2 are pushed through the locking protrusions 7 and are slightly elastically deformed outward, and the locking protrusions 7a, 7
a also slightly elastically deforms, and the locking protrusions 7a, 7a
Said force acting on the insert 6 also acts on the insert 6. Since the lower end of the insert 6 is divided into two by the groove 9, the two divided lower ends of the insert 6 are close to each other, that is, the groove 9 is The locking protrusions 7a, 7a of the insert body 6 can be elastically deformed relatively easily to become narrower, etc.
is inserted into the connecting body 2.

In this way, when the insert body 6 passes through the stepped portion 3, the locking protrusions 7a, 7a and the insert body 6 return to their original states, and as shown in FIG. ，
7a is engaged with the stepped portion 3, and the insert body 6 is connected to the connecting body 2 so as not to be unnecessarily separated.

As described above, this joint slightly elastically deforms each of the connecting body 2, the locking protrusions 7a, 7a, and the insert body 6, and allows the insert body 6 to be inserted and passed through the hole 4 of the connecting body 2. Connecting body 2 and locking protrusions 7a, 7a
The amount of elastic deformation of each of the inserts 6 and 6 may be small, and it is possible to pass the inserts 6 through the connecting body 2 by only lightly pressing the inserts 6, and the force required for this is less than that of the conventional joint connection. The required force is small compared to the required force, and it is possible to connect a large amount of pine and other items easily and efficiently with little effort.

Furthermore, since the amount of elastic deformation of the locking protrusions 7a, 7a when the connecting body 2 is passed through can be reduced, and the return to the original shape is easy, the locking protrusions 7a, 7a
those steps 3 after passing through the steps 3
Since the locking protrusions 7a, 7a can be secured to the step part 3 even when the insert body 6 which has been elastically deformed returns to its original position, the locking protrusions 7a, 7a can be secured to the step part 3. 7a, 7a can be locked more easily and reliably, and connection efficiency can also be improved from this point of view.

In addition, in this embodiment, as shown in FIG.
The insert body 6 whose lower end portion is divided by the groove 9 is brought into a state where the divided parts of the insert body 6 are connected,
Since it is integrally provided at both ends of the semi-cylindrical support body 5, the support body 5 is also slightly elastically deformed along with the elastic deformation of the insert body 6 when inserted into the connecting body 2. After the locking protrusions 7a, 7a pass through the stepped portion 3, the force that causes the support body 5 to return to its original state acts to assist the return of the elastically deformed insert body 6. The body 6 can be returned to its original state more reliably, and the locking protrusions 7a, 7a can be locked by the stepped portion 3 more reliably.

In the above embodiment, the stepped portion 3 of the connecting body 2 is provided over almost the entire length of the inner circumference of the connecting body 2, but this stepped portion 3 is provided only in the approximately parallel portion of the connecting body 2. It may be provided. The connecting body 2 may be provided in a rectangular shape or the like so that the inserting body 6 can be inserted therein.

{Effect of the invention} As described above, in the rug joint of this invention, when the insertion connection body is inserted into the connection body, the locking protrusions provided on both sides of the insertion connection body are pushed on both sides of the connection body. However, because of the groove provided on the lower end surface of the insertion connector between the locking protrusions, the lower part of the insertion connector also elastically deforms in the direction of becoming smaller together with the locking protrusion, so the locking protrusion is elastically deformed. Since the amount can be reduced and one end of the groove is closed, the amount of elastic deformation of the end of the insertion connector is restricted.

Therefore, when each of the locking protrusions passes through the locking step of the connecting body, the insertion coupling body and the locking protrusion can be easily restored, and the locking protrusion can be easily restored to the position of the locking protrusion relative to the locking step. The locking is ensured and the mats can be connected efficiently. Moreover, since the total length of the insertion connection body in the longitudinal direction of the groove is set smaller than the inner dimension of the connection body in the same direction, the resistance generated when inserting the insertion connection body into the connection body is Since only the portion provided with the locking protrusion is provided, it is possible to easily and efficiently insert the insertion coupling body into the connection body.

As mentioned above, one end of the groove provided at the lower end of the insertion connector is closed to regulate the amount of deformation of the lower end of the insertion connector, so that the insertion connector is inserted and connected to the connecting body. This makes it possible to restrict the deformation of the insertion connector and prevent its separation when an external force is applied to separate them.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; FIG. 1 is a bottom view of the connected state, FIG. 2 is a sectional view of the same, and FIG. 3 is a view of A-
A cross-sectional view, Figure 4 is a perspective view of the main parts from the bottom,
FIG. 5 is a plan view with needle-like protrusions omitted. 1... Plate-shaped main body, 2... Connecting body, 3... Stepped part,
6... Insertion coupling body, 7a, 7b... Locking protrusion, 9
...concave groove.

Claims (1)

[Scope of utility model registration request] A cylindrical connecting body is provided on each of two continuous sides of a rectangular plate-like body made of a soft synthetic resin and protrudes outward, with its axis in the thickness direction of the plate-like body, and An insertion connecting body that can be inserted into the connecting body is provided on each of two continuous sides of the connecting body, and a lower end of the insertion connecting body is provided on both sides in a direction parallel to the edge of the plate-like body where the insertion connecting body is provided. In the joint for a rug having a protruding locking protrusion that is locked to the locking stepped portion of the connecting body, the insertion connector is provided on the end face of the insertion connector on which the locking protrusion is provided. A groove is provided in a direction orthogonal to the edge of the plate-like main body, one end of which is closed, and the entire length of the insertion coupling body in the longitudinal direction of the groove is the same as that of the connecting body in the same direction. A joint for a rug, characterized in that it is set smaller than the inside dimension of the joint.