JP5745331B2 - Spacer for slope protection net - Google Patents

Description

  The present invention provides a slope protection in which a protective mesh such as a welded wire mesh and a lasso mesh is floated and held by a certain height from the slope when spraying concrete, mortar, thick layer soil, vegetation base material, etc. on the slope. More particularly, the present invention relates to a slope protection mesh spacer that can be easily configured using a coil spring.

  When mortar, thick layer soil, vegetation base material, etc. are sprayed on the slope, in order to reinforce the mortar on the slope, a protective net such as a lath net is placed on the slope to cover the whole, The protective net is held on the slope in a state where it is floated by a certain height by spacers attached at predetermined intervals, and mortar or the like is sprayed thereon.

  As such a slope protection net spacer, conventionally, a coil spring spacer configured using a coil spring has been proposed in Patent Document 1 below. This spacer has an advantage that it can be manufactured at a low cost by using an inexpensive strand with a relatively simple structure.

Japanese Utility Model Publication No. 61-193148

  However, the coil spring spacer has a structure in which a straight wire portion protrudes vertically upward from the top of the coil spring, and the straight wire portion is generated at the intersection of the strands of the lath net. Since it is inserted into the hole and used, it is very difficult to use and the mounting workability is very bad.

  That is, when this coil spring spacer is attached to the lath net, while the lath net is arranged so as to cover the slope, the bottom of the coil spring is placed vertically on the slope and the wire straight line on the top thereof The part is attached and used so as to be inserted from the bottom to the top into the hole (double layer) formed at the intersection of the strands of the lath net.

  However, since the crossing portion of the strands of the lath net is usually a portion where the two strands bend and intersect at a substantially right angle, the hole (overlap) is almost disappeared. By pulling the strands, etc., a small hole is made at the intersection, and the straight portion of the strand is inserted into the small hole from below. For this reason, there was a problem that the spacer mounting workability was very poor.

  The present invention solves the above-described problems, and an object thereof is to provide a slope protection net spacer that can be easily attached to a protection net and can be manufactured at low cost.

A slope protection mesh spacer according to the present invention is a slope protection mesh spacer that holds a protection mesh on a slope at a predetermined height interval. The spacer body is entirely formed of a coil spring, and the spacer The outer diameter of the lower part of the coil spring constituting the lower part of the main body is formed to be smaller than the inner diameter of the mesh of the protective mesh, and the mesh clamping part is located at a predetermined height from the bottom of the spacer main body and the inner diameter of the mesh of the protective mesh. It is formed as a large-diameter coil spring part, and is formed so that the outer diameter of the coil spring gradually increases from the upper end of the lower part of the coil spring to the mesh holding part. And is formed so that a mesh foot portion of the protective mesh can be sandwiched between a plurality of spring strands, and an upper portion of a coil spring is integrally provided on the upper side of the mesh sandwiching portion. Same outer diameter as the coil spring lower part Characterized in that made the.

  According to the present invention, the spacer main body can be manufactured at low cost by winding an inexpensive spring wire in a coil shape. In addition, when attaching to the protective mesh, simply insert the lower part of the coil spring of the spacer body into the mesh of the protective mesh and rotate the spacer body in the winding direction of the coil spring. Therefore, the net part of the protective net can be easily held by the net holding part. As a result, the slope protection mesh spacer can be easily attached to the protection mesh at a predetermined height position, and the workability of the slope protection mesh spacer can be improved.

  In addition, when a slope protection net spacer is attached to the protective mesh, the worker may work on the protective mesh, but even if the operator gets on the protective mesh, the lower part of the spacer body is below the coil spring. Therefore, the spacer main body can hold its attached state only by its height being easily compressed, and the protective net can be well held at a predetermined height position.

Further, on the upper side of the mesh clamping part, a coil spring upper part is integrally provided, and the coil spring upper part is formed to have substantially the same outer diameter as the coil spring lower part, so that the spacer body can be easily formed, Furthermore, when the spacer body is rotated and attached to the protective net, the operator can easily attach the coil spring by holding the upper part of the coil spring by hand.

  Moreover, it is preferable that the bottom part of the lower part of the coil spring is formed by closely winding the spring element wire a plurality of times. According to this, the end of the coil spring of the spacer body does not get entangled with other members during transportation, etc., and the handling becomes easy and the level of the bottom of the spacer body is maintained. When placed on the slope, the spacer body can be stably placed on the slope.

  The upper end of the upper part of the coil spring is preferably formed by densely winding the spring wire a plurality of times. According to this, the end of the coil spring of the spacer main body does not get entangled with other members during transportation and the like, and handling becomes easy, and it becomes easy to hold when turning with the upper part of the coil spring.

  According to the slope protection mesh spacer of the present invention, it can be manufactured at low cost, can be easily attached to the protection mesh, and can be well held at a predetermined height position.

It is a front view of the spacer for slope protection net | networks which shows one Embodiment of this invention. It is a top view of the spacer for the same slope protection net | network. It is a perspective view of the spacer for the same slope protection net. It is a perspective view of the first stage at the time of attaching the spacer for slope protection net | networks to a protection net | network. It is a perspective view in the middle of turning and attaching the spacer for a slope protection net | network. It is a perspective view of the state which attached the spacer for slope protection nets to the protection net. It is a top view of the state which attached the spacer for slope protection nets to the protection net. It is a perspective view which shows the usage condition of the spacer for slope protection net | networks.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The slope protection net spacer is a slope protection net spacer that holds the protection net 10 in a floating state on the slope at a predetermined height interval, as shown in FIGS. The whole spacer body 1 is formed by a coil spring.

  The spacer body 1 of the slope protection mesh spacer is formed by winding a spring element wire in a coil shape with a predetermined outer diameter as a lower portion of the coil spring lower portion 2. 4 is similarly formed by winding a spring element in a coil shape, and a coil spring upper part 3 is formed on the mesh holding portion 4 by similarly winding a spring element in a coil shape.

  That is, the spacer body 1 is provided with a coil spring upper portion 3 at the upper portion and a coil spring lower portion 2 at the lower portion, and a mesh holding portion 4 having a larger outer diameter is provided between the coil spring upper portion 3 and the coil spring lower portion 2. It is formed integrally. The net holding part 4 is a part for holding the net part 12 of the protective net 10. Such a spacer body 1 is formed by continuously winding one spring element wire in the same direction in a coil shape, and can be easily manufactured by a coil forming apparatus.

  As shown in FIGS. 4 to 8, the slope protection mesh spacer is installed by inserting the coil spring lower portion 2 into the mesh 11 of the protection mesh 10 such as a welded wire mesh or a lasso mesh and turning it while inserting it. Used for. Therefore, the outer diameter A of the coil spring lower part 2 is formed smaller than the inner diameter D of the mesh 11 of the protective mesh 10 as shown in FIGS. 1 and 7, and the coil spring lower part 2 is placed in the mesh 11 of the protective mesh 10. It can be inserted.

  The mesh sandwiching portion 4 is a location for sandwiching the mesh foot portion 12 of the protective mesh 10, and since the coil spring bottom 5 at the bottom of the spacer body 1 is attached in contact with the slope, the height dimension of the coil spring lower portion 2. That is, the height E (FIG. 1) from the coil spring bottom 5 to the mesh holding portion 4 is set to be approximately the width between the slope and the protective mesh 10 when the protective mesh 10 is applied to the slope. .

  The mesh sandwiching portion 4 formed at a height E from the bottom of the spacer body 1 has a coil spring portion whose outer diameter B (FIG. 1) is larger than the inner diameter D (FIG. 7) of the mesh 11 of the protective mesh 10. The outer diameter of the coil spring gradually increases from the upper end of the coil spring lower part 2 to the mesh holding part 4. In other words, the net sandwiching portion 4 is formed by winding the spring element wire a plurality of times in the same direction as the winding direction of the coil spring lower portion 2. The outer diameter A of the upper end portion of the coil spring lower part 2 is gradually increased to become the outer diameter B of the mesh clamping part 4 so that the mesh foot part 12 of the protective mesh 10 can be gradually clamped between the strands. ing.

  A coil spring upper portion 3 is integrally formed on the upper side of the mesh clamping portion 4 of the spacer body 1 so as to rotate the slope protection mesh spacer. The coil spring upper part 3 is formed to have substantially the same outer diameter C as the coil spring lower part 2, and the height dimension of the coil spring upper part 3 is formed to be lower than the height E from the coil spring lower part 2 to the mesh holding part 4. Is done. Since the coil spring upper part 3 is provided so as to be gripped when the slope protection net spacer is turned, the outer diameter thereof can be arbitrarily determined as long as the operator can grip it by hand.

  Here, there is no problem even if the outer diameter A of the coil spring lower part 2 and the outer diameter C of the coil spring upper part 3 are the same, and when using a coil forming device that is manufactured by winding a coil spring, If the outer diameter A of 2 and the outer diameter C of the coil spring upper part 3 are the same, it can be manufactured more easily.

  Further, as shown in FIG. 1, the bottom portion 5 of the coil spring lower portion 2 is formed by densely winding a spring element wire, and similarly, the upper end portion 6 of the coil spring upper portion 3 is formed of a spring element wire densely wound. It is formed by winding a plurality of times. In this way, the end portions of the coil spring lower portion 2 and the coil spring upper portion 3 are formed by winding the spring element wire a plurality of times, so that the end portions of the coil springs of the spacer body 1 are closed, during transportation, etc. It is easy to handle without being entangled with other members. Further, when the spacer 5 is placed on the slope, the bottom 5 of the coil spring lower portion 2 maintains the horizontality of the bottom 5, so that the spacer body 1 can be stably placed on the slope. Further, when the spring wire of the upper end portion 6 is densely wound a plurality of times, it is easy to hold and handle when the upper end portion 6 of the coil spring upper portion 3 is rotated.

  According to the thickness of the mortar, thick layer soil, vegetation base material, etc. sprayed on the slope, the spacer for the slope protection net having the above-described configuration has the coil spring lower part 2 of various heights, that is, from the bottom 5. Various products having a height E (FIG. 1) up to the net sandwiching portion 4 are manufactured. When the thickness of concrete mortar, thick layer soil, vegetation base material, etc. that are actually sprayed on the slope is, for example, 50 mm, 70 mm, 80 mm, 100 mm, 150 mm, the height from the bottom 5 to the net sandwiching section 4 A spacer for slope protection nets having a height E of half the above dimension, that is, a height E of 25 mm, 35 mm, 40 mm, 50 mm, and 75 mm is manufactured and used.

  The height of the coil spring upper part 3 protruding above the net sandwiching part 4 is arbitrary, but is preferably lower than the height of the coil spring lower part 2. Thereby, when mortar, thick layer soil, vegetation base material, etc. are sprayed on the slope, the protective net 10 is positioned in the middle of the spraying thickness of mortar and the like, and is sprayed to the upper end portion 6 of the coil spring upper part 3. Can be embedded in a layer. On the other hand, when the upper end portion 6 of the coil spring upper part 3 is exposed on the spraying layer and the attachment position of the spacer is confirmed after spraying, it is desirable that the height of the coil spring upper part 3 is increased.

  When a slope protection net spacer is attached to an arbitrary portion of the protection net 10 disposed on the slope, as shown in FIG. 4, first, the coil spring of the spacer body 1 is held by holding the coil spring upper portion 3. The lower part 2 is inserted into the mesh 11 of the protective mesh 10 from above and turned to the right. At this time, as shown in FIG. 5, the mesh foot 12 of the protective mesh 10 surrounding the mesh 11 of the protective mesh 10 is sandwiched between the mesh clamping portions 4, and the four mesh feet 12 around the mesh 11 are The mounting of the slope protection net spacer is completed while being sandwiched between the net sandwiching portions 4.

  That is, when the coil spring lower part 2 of the spacer body 1 is inserted into the mesh 11 from above and turned to the right, the upper coil of the coil spring lower part 2 is connected to the large-diameter mesh clamping part 4 while gradually increasing its outer diameter. Therefore, the mesh foot 12 around the mesh 11 slides upward while resting on the upper coil of the coil spring lower portion 2, and as a result, the mesh foot 12 of the protective mesh 10 is between the coils of the mesh sandwiching portion 4. Thus, the slope protection net spacer is attached and held in the mesh 11 of the protection net 10.

  In this way, a plurality of slope protection mesh spacers are attached to the mesh 11 at any desired location of the protection mesh 10 as shown in FIG. 8, and the bottom 5 of each slope protection mesh spacer is in contact with the slope. Accordingly, the protective net 10 on the slope is held by being lifted at a height E from the slope.

  In this way, when a slope protection mesh spacer is attached to the protection mesh 10, only the coil spring lower part 2 of the spacer body 1 is inserted into the mesh 11 of the protection mesh 10, and the spacer body 1 is only turned in the winding direction of the coil spring. Thus, since the net sandwiching portion 4 sandwiches the net foot portion 12 of the protective mesh 10, the net foot portion 12 of the protective mesh 10 can be easily sandwiched by the net sandwiching portion 4 of the spacer body 1. As a result, the slope protection mesh spacer can be easily attached to the protection mesh 10 at a predetermined height position, and the workability of the slope protection mesh spacer can be improved.

  In addition, when a slope protection net spacer is attached to the protection net 10, there is a case where an operator rides on the protection net 10 to work. Since the lower part of the coil spring 2 is used, the spacer body 1 can maintain its attached state only by being easily compressed, and the protective net 10 can be satisfactorily held at a predetermined height position. be able to.

  Further, when the slope is uneven, the coil spring lower part 2 of the slope protective net spacer located at the convex part is compressed, and the coil spring lower part 2 of the slope protective net spacer is left as it is located at the concave part. Thus, even if the slope is uneven, the protective net 10 can be held in a floating state.

  Further, even when some load is applied in the thickness direction of the protective mesh 10 when spraying mortar or the like on the slope, the coil spring lower portion 2 is only temporarily compressed and elastically deformed according to the load. Therefore, in most cases, the spacer main body 1 can be restored to its original state, and the protective net 10 can be satisfactorily held in a state where the protective net 10 is floated on the slope. In addition to the sloped slope, the spacer with the above structure can be used as a spacer for installing a protective net on the construction surface when spraying concrete, mortar, etc. on a horizontal construction surface. it can.

DESCRIPTION OF SYMBOLS 1 Spacer main body 2 Coil spring lower part 3 Coil spring upper part 4 Net clamping part 5 Bottom part 6 Upper end part 10 Protection net 11 Net 12 Net foot part

Claims (3)

In the spacer for the slope protection net that holds the protection net on the slope at a predetermined height interval,
The entire spacer body is formed by a coil spring, the outer diameter of the lower part of the coil spring constituting the lower part of the spacer body is formed smaller than the inner diameter of the mesh of the protective mesh, and is located at a predetermined height position from the bottom of the spacer body. The mesh holding portion is formed as a coil spring portion having a diameter larger than the inner diameter of the mesh of the protective mesh, and the outer diameter of the coil spring is gradually increased from the upper end of the lower portion of the coil spring to the mesh holding portion, The mesh sandwiching portion is formed by winding the spring wire a plurality of times, and is formed so as to be able to sandwich the mesh foot portion of the protective mesh between the plurality of spring strands ,
A slope protection mesh spacer , wherein a coil spring upper portion is integrally provided on the upper side of the mesh sandwiching portion, and the coil spring upper portion is formed to have substantially the same outer diameter as the coil spring lower portion .   2. The slope protecting network spacer according to claim 1, wherein the bottom portion of the lower part of the coil spring is formed by densely winding a spring wire a plurality of times.   2. The slope protecting net spacer according to claim 1, wherein the upper end portion of the upper part of the coil spring is formed by densely winding a spring wire a plurality of times.

Images