JP3111151B2 - Sapling training container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a training container made of felt used for growing and transporting plants, and more particularly, to a training container in which seedlings can be easily placed and easily removed when unnecessary.

[0002]

2. Description of the Related Art In a city, various trees are planted in parks, gardens and streets for aesthetics and recreation. These trees are not planted from the time of sowing or seedlings, but are planted in a state where they have grown to some extent to unify the entire planting. The raising of seedlings of a plant requires changing the working depth for each of the sowing floor and the floor changing floor, and cutting and raising the fine roots of the seedling with a root excavator, which requires a great deal of labor and time.

Conventionally, seedlings that have been sown and grown to some extent are placed in a non-woven training container sewn into a tubular shape,
By embedding the entire container in the soil, the lifting work is facilitated. Plants that have grown until they can be shipped are dug out together with the training containers and transported as they are. When this training container is used, cutting of the fine roots of a tree during rooting or excavation is reduced.

[0004]

The conventional training container has a problem in that the peripheral wall thereof is thin and the air permeability is not good due to the thin peripheral wall. There is. In this training container, a thin non-woven fabric is sewn in a tubular shape, so that when it is empty, it cannot maintain the tubular shape and collapses, so that it cannot stand alone when opening a seedling and cannot be opened. When placing seedlings in this training container, a worker who opens the mouth while holding the upper part of the container is required separately, which is uneconomical.

[0005] The training container needs to be removed before the plant is transported to a park, a garden, a street, or the like and planted.
The fine roots of the plant tree enter into the peripheral wall of the training container and become entangled with each other, and it is difficult to remove the plant tree by simply pulling it downward. For this reason, training containers with perforations engraved on the peripheral wall have been proposed.However, if perforations or deep cuts are provided on the container peripheral wall, the seedlings can be easily broken at the time of rooting or excavation, and the purpose of the training container is Things that cannot be achieved occur.

The present invention has been proposed in order to improve the above-mentioned problems relating to the conventional training container, and provides a training container having sufficiently good air permeability and maintaining a cylindrical shape even in an empty state. It is intended to be. Another object of the present invention, Ru der to provide an easily removed training vessel when planted conveys the plants to the desired location.

[0007]

In order to achieve the above-mentioned object, a seedling-growing container 1 according to the present invention has a cylindrical shape with a top opening as shown in FIG. 2 and is exemplified in FIGS. Sheet 3 of felt 2 having water permeability and air permeability
Formed by thermoforming. The training container 1 may be cylindrical or rectangular if it has a cylindrical shape. However, a hollow inverted truncated cone is preferable because it is easy to heat-mold and easy to put seedlings and soil.

The training container 4 may be substantially cylindrical as shown in FIG. 3, or may be provided with a peripheral wall 5 having a sawtooth-shaped horizontal cross section on the peripheral surface of the container. The sawtooth cross section of the peripheral wall 5 may be formed not on the entire peripheral wall but on only a part of the peripheral wall, and the sawtooth shape may be large or small and includes a corrugated shape.

The felt 2 is composed of, for example, 30 to 40% by weight of polyester fiber, 20 to 30% by weight of rayon, and 20 to 30% by weight of heat-fusible fiber. When the content of the rayon is 20% by weight or more, the training container 1 maintains an appropriate water permeability, and when the content is 30% by weight or less, the shape retention property can be maintained even when left in the soil for a long time. In addition, when the heat-fusible fibers are 2
If it is 0% by weight or less, it is easily decomposed when left in the soil for a long time, and if it is 30% by weight or more, the air permeability of the training container 1 decreases.

[0010]

The seedling 7 (FIG. 1) which has been sown and grown to some extent is placed in the training container 1, and the container may be buried in the soil to grow. Since the training container 1 is made of felt having sufficient water permeability and air permeability, it keeps a constant oxygen concentration in the soil in the container and prevents excess water to promote the development of the root 8 of the seedling 7. The roots 8 of the seedlings 7 are finely branched and spread in the training vessel 1 to absorb nutrients and water, and a part of the fine roots extend through felt pores in the vessel peripheral wall, thereby extending the inside of the vessel peripheral wall. To form callus. As a result, even if the fine roots are cut when the plant is raised or excavated, the growth of the tree main body is hardly hindered.

The training container 1 (FIG. 2) is rigid because of the relatively thick felt 2 of the peripheral wall, and is open / standing while maintaining a cylindrical shape even in an empty state. Training container 1
In the method, the fibers 3 are oriented in a substantially vertical direction on the entire peripheral wall by pulling the sheet 3 in which the fibers are randomly oriented at the time of thermoforming downward during the thermoforming (see FIG. 6). For this reason, if a small cut 9 is provided at the end of the training container 1, it is easy to tear in the vertical direction, and it is easy to remove it before planting a tree at the destination.

Since the training container 4 (FIG. 3) has a saw-toothed cross-section of its peripheral wall 5, it can be easily opened only by pulling the upper part of the container outward, and can be easily removed before planting a tree at a target place. It is. Further, when the container peripheral wall 5 has a sawtooth cross section, even if the roots of the seedlings are excessively elongated in the training container 4,
A root circle is not formed along the inner peripheral surface of the peripheral wall, and it is possible to eliminate poor root growth and poor growth after planting at a target place.

[0013]

Next, the present invention will be described based on embodiments. Example 1 In order to produce the training container 1 shown in FIG. 2, 40% by weight of 6 denier polyester, 35% by weight of 3 denier rayon, and 4 denier polyester heat-fusible fiber (trade names: Melty, Unitika) And 25% by weight. The entire card wrap is felted by needle punching at a needle density of 100 needles / cm ² using a normal locking needle to form a felt having a thickness of 4 mm.
A felt sheet 3 weighing 300 g / m ² is obtained.

The felt sheet 3 is sandwiched between annular clamp members 20 and 21 of a molding machine 15 shown in FIG. Next, the clamp members 20 and 21 are moved downward, and the central male truncated cone 2
After pre-molding in 2, the bowl-shaped female mold 23 (Fig. 5)
And finish molding. At this time, clamp material 2
0, 21 and the male mold 22 are heated to about 160 ° C. by a heater,
Pre- and finish-molding times are about 1 minute.

A training container 1 having a flange 10 by trimming the entire periphery of the thermoformed container material into a circle.
(FIG. 2) is formed. The training container 1 has, for example, a diameter of 300.
mm and a height of 350 mm, and is open and standing while maintaining the cylindrical shape in an empty state. In the training container 1, the fibers are oriented substantially vertically in the entire peripheral wall (see FIG. 6), and small cuts 9, 9 are provided in the flange portion 10 so as to be diametrically opposed.

[0016] In a training container 1, a sapling seedling 7 (Fig. 1) grown 6 months after sowing is put, and the container is buried in the soil and grown for 2 years. The roots 8 of the seedlings 7 are finely branched and spread in the training container 1 to develop nutrients and water, and a part of the fine roots extend through felt pores on the peripheral wall of the container, whereby the container 8 grows. Callus is formed on the entire inner surface of the peripheral wall.

The training container 1 is dug out of the soil when planting a tree, and is conveyed to a destination as it is. The training container 1 can be easily removed immediately before tree planting by tearing vertically from the cuts 9 provided in the flange portion 10.

EXAMPLE 2 In order to produce the training container 4 shown in FIG. 3, 30% by weight of 6 denier polyester, 40% by weight of 3 denier rayon, and 4 denier polyester heat-fusible fiber 30
% By weight and laminated. The entire card wrap was treated in the same manner as in Example 1, and had a thickness of 4 mm and a weight of 3
A felt sheet of 00 g / m ² is obtained.

This felt sheet is thermoformed in the same manner as in Example 1. However, a mold that forms a serrated cross section on the peripheral wall 5 of the container 4 is used. And the pre- and finish-molding times are about 1 minute. The training container 4 is formed by cutting the entire periphery of the thermoformed container material. The training container 4 has, for example, a diameter of 300 mm and a height of 350 mm, and is open / standing while maintaining a cylindrical shape in an empty state.

Since the peripheral wall 5 has a saw-toothed cross section, the training container 4 can be easily opened just by pulling the container upward by pulling the container upward and immediately before planting a tree at a target place. In the training container 4, the root of the seedling is placed in the training container 4.
When extending inside, the root circle is not formed along the inner peripheral surface of the peripheral wall.

[0021]

The training container of the present invention is used to grow a tree such as ginkgo, zelkova, dogwood, cherry, poplar, camphor, etc. by sowing seedlings that have been sown and grown to some extent. It can be excavated together with the training container and transported as it is. This training container is made of felt having sufficient water permeability and air permeability, and a part of the fine roots of the seedlings can extend through felt pores in the peripheral wall of the container. When this training container is used, the fine roots of the tree are rarely cut when the roots are raised or dug, and even if the fine roots are slightly cut, the growth of the tree main body is hardly hindered.

The training container of the present invention can hold a tubular shape even when it is empty and open and stand, so that a single worker can put a seedling into the training container. This training container is very easy to remove before planting at the destination because the fibers in the entire peripheral wall are oriented substantially in the vertical direction and the peripheral wall has a sawtooth cross section.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view illustrating a state in which a seedling is planted and buried in soil in a training container according to the present invention.

FIG. 2 is a perspective view showing a training container of the present invention.

FIG. 3 is a perspective view showing another training container of the present invention.

FIG. 4 is a schematic sectional view of a thermoforming machine used for producing a training container.

FIG. 5 is a schematic sectional view showing a finishing step in the thermoforming machine of FIG.

FIG. 6 is a plan view schematically showing a state in which fibers of a felt sheet are oriented during thermoforming.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Training container 2 Felt 3 Felt sheet 5 Peripheral wall having a serrated horizontal cross section 7 Seedling 8 Root 9 Cut 10 Flange part

Claims (4)

(57) [Claims] 1. A container having a top surface opening obtained by thermoforming a felt sheet having water permeability and air permeability, which is used for growing a plant by embedding in a soil together with a seedling. In the soil by having water permeability and breathability
Roots of seedlings while maintaining a constant oxygen concentration and preventing excess water
The fibers are oriented almost vertically in the entire surrounding wall after molding, and when opening the seedlings while holding the tubular shape in the empty state, and standing ,
A seedling training container that is removed by tearing the container vertically during planting . 2. A container used for growing a plant by burying it in the soil together with a seedling, wherein the container comprises a polyester fiber 30.
40 wt%, rayon 20-30 wt%, a cylindrical body of the upper surface opening obtained by thermoforming a felt sheet having a water permeability and air permeability made of 20 to 30 wt% heat fusible fibers, water permeability Constant in the soil by having breathability
Roots of seedlings are maintained by maintaining oxygen concentration and preventing excess water
Encourage us, are oriented to substantially longitudinally fibers throughout the peripheral wall after molding, as well as open-stance when put seedlings holds a cylindrical shape in an empty state, planting after transport
A seedling training container that is sometimes removed by tearing the container vertically . 3. The diametrically opposed pair at the flange of the container.
Make a small notch in the direction
The training container according to claim 1 or 2 , wherein the container is easily removed immediately before tree planting when the container is torn in the opposite direction . 4. A container used for growing a plant by embedding it in the soil together with a seedling, wherein the upper surface obtained by thermoforming a felt sheet having water permeability and air permeability has a fluted upper surface opening. It has a cylindrical shape and has water permeability and air permeability.
To maintain a constant oxygen concentration in the soil and prevent excess water
In encouraging the development of roots of seedlings, and provided with a peripheral wall having a serrated horizontal cross section in the container periphery, the opening-standing Then together when put seedlings holds a cylindrical shape in an empty state
At the time of planting after transportation, pull the upper part of the container outward
Seedling training container to open and remove with .