JP2002309880A - Trestle holder for garden tree - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a trestle holder for a garden tree, by which a trestle for the garden tree can be set stably, having fixed bonding strength without generating shear force such as torsion to the garden tree as a working object and the safety of a worker and pruning workability can be improved. SOLUTION: The trestle holder 10 for the garden tree has a garden-tree fixing section 12, which is formed in an approximately annular shape or an approximately rectangular shape by combining a plurality of frame materials 20-22 and in which the trunk of the garden tree 13 is inserted and fixed, a connecting supporting section 14 connecting the trestle 11 for the garden tree arranged around the garden tree 13 and the garden-tree fixing section 12, an extension reinforcing section 23 projected and formed from the frame materials 20-22 of the garden-tree fixing section 12 and an engaging-pin inserting hole 24 formed at approximately the center of the extension reinforcing section 23 on which an end section on the garden-tree fixing section 12 side of the connecting supporting section 14 is mounted rotatably through an engaging pin 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stepladder holding tool for use in pruning and shaping plants planted in gardens, walkways, forests and the like.

[0002]

2. Description of the Related Art In recent years, with increasing awareness of nature conservation and environmental problems, interest in nearby gardens and forests has been increasing, and care for planted trees and the like has been frequently performed. Such pruning of trees is mainly performed at high altitudes, and the work is performed using a stepladder for planting or a ladder standing on the tree. Pruning operations performed on stepladders or ladders are unstable because the base of the stepladder or ladder is generally placed on soft, unpaved ground. Furthermore, when pruning and shaping branches, etc. at high altitudes, the worker must work away from the stepladder or ladder near the top step of the garden stepladder, and the worker must balance on it. There was a danger of breaking down and falling from the stepladder. For this reason, in order to stably support a stepladder or a ladder, for example, the following stepladder for planting has been proposed. (1) JP-A-11-13376 (hereinafter referred to as "A") discloses a ladder in which a pair of arms attached to an upper portion of a ladder are interposed at a predetermined angle with respect to a trunk of a tree plant or the like while being interposed therebetween. There is disclosed a ladder fixing device for fixing the ladder. (2) JP-A-58-44179 (hereinafter referred to as "B") discloses a flexible frame which is suspended via a hook on a suspending device which is wound around a column and fixed. A ladder having is described. (3) Japanese Patent Laying-Open No. 57-501332 (hereinafter referred to as "C") discloses a lateral bar formed wider than the width of a ladder to be leaned, and a turnbuckle for engaging the lateral bar with the ladder. And a ladder attachment having the following. (4) Japanese Patent No. 2733600 (hereinafter referred to as Japanese Patent Publication No. 2) discloses a ladder portion having a step, a support rotatably provided at an end of the ladder portion, and fixed to a trunk of a plant tree. There has been proposed a garden stepladder having a tree plant fixing portion and a rod-shaped fixing member connecting between the ladder portion or the support and the tree plant fixing portion.

[0003]

However, the above-mentioned conventional planting stepladder or ladder has the following problems. (1) In the case of using a ladder as described in the above publications A, B, C, etc., the ladder is fixed at a position close to the plant through arms, hooks, turnbuckles and the like provided on the ladder. Therefore, there is a problem that it is difficult for an operator to secure a space necessary for performing pruning work such as planting trees. (2) In the case of the stepladder for planting described in the above-mentioned Japanese Patent Publication, although a bar-shaped fixing member is provided, a sufficiently large working space can be secured, but the ladder portion and the fixing member fixed to the trunk of the planting tree are used. At the time of connection, the installation position of the ladder portion is limited by the work content, the condition of the ground, and the like, which causes a problem that the connection portion is twisted and the strength of this portion is significantly reduced. (3) Since the structure consisting of the tree plant fixing part, the ladder part and the rod-shaped fixing member has a small degree of freedom, the ladder part is required to be positioned at a predetermined position by adapting to a rough and soft ground. There is a problem that it is difficult to install the device with strength.

[0004] The present invention solves the above-mentioned conventional problems, and provides a planting stepladder having strength not to bend or break due to twisting when connecting the planting fixing portion and the planting stepladder. It is an object of the present invention to provide a stepladder for tree planting that can be set stably and can improve the safety of an operator and the workability during pruning.

[0005]

In order to achieve the above object, the present invention has the following arrangement. The stepladder holding tool for planting according to claim 1, wherein a plurality of frame members are combined to form a substantially annular or substantially rectangular shape, and a planting tree fixing portion into which a tree planting trunk is inserted and fixed, and around the planting tree. A connection support portion for connecting between the planting stepladder and the plant fixing portion, an extended reinforcing portion formed by projecting from a frame material of the plant fixing portion, and a connection supporting portion on the plant fixing portion side of the connection supporting portion. The end portion has a locking pin insertion hole provided substantially at the center of the expansion reinforcing portion rotatably mounted via the locking pin. With this configuration, the following operation is obtained. (A) Since one end of the connection support portion is rotatably attached to the expansion reinforcing portion formed on the plant fixing portion via the locking pin, the area of the surface where both are joined is increased, and the ladder is increased. Can be improved with respect to a mechanical load caused by torsion caused by, for example, being placed on irregular ground. (B) Since the locking pin is inserted into the locking pin insertion hole and the plant fixing part and the connection fixing part side of the connection supporting part are connected, the degree of freedom to rotate each other in a horizontal direction or the like is secured, and the planting is performed. The stepladder can be easily and stably installed at an appropriate position. (C) Since it has the connection support portion, a predetermined space can be secured between the planting stepladder and the fixed planting tree, and the pruning operation can be easily performed. In addition, a scaffold can be provided on the connection support portion as required, so that the efficiency of the pruning operation and the safety can be ensured at the same time. (D) When the frame material of the plant fixing part is made of aluminum or aluminum alloy, the weight can be reduced as compared with steel and the like, the mounting work becomes easy, and it is necessary to add a reinforcing component or the like. Strength can be ensured, and a simple manufacturing method such as casting or machining can be applied.

Here, the stepladder for planting is a four-legged type (stepladder type) having two sets of ladders provided between frames facing a plurality of steps, or a ladder having a pair of frames. And a column for supporting the camera.

[0007] The plant fixing portion is formed of a square frame material or a curved frame material. A plurality of this frame material,
For example, two or four of them can be combined with each other via bolts and nuts or a mutually rotatable connecting member to form a frame-like body as a whole having a rectangular shape or the like.
After selecting the horizontal hole according to the diameter of the trunk of the plant and controlling the size so that the whole frame becomes a polygon surrounding the trunk, this frame-shaped body will be in a substantially horizontal direction when the plant is fixed. A fixed connecting member consisting of a bolt and a nut is inserted into the formed horizontal hole and fixed to the trunk of the plant. In this manner, various plants having different trunk thicknesses can be fixed. The diameter of the tree trunk is applied to about 10 to 80 cm. The installation position of the horizontal hole into which the fixed connection member is inserted may be anywhere in the frame material, but it is preferable to provide a large number at a predetermined interval, for example, an interval of 10 to 50 mm, so that the range of selection for the trunk of the plant tree can be widened.

The expansion reinforcing portion is a disk-shaped or rectangular-shaped projection formed so as to protrude from the frame material main body, and has a locking pin insertion hole into which a locking pin is inserted at a substantially central position. ing. Thereby, the connection supporting portion on the side of the plant fixing portion, which is arranged to overlap with the extension reinforcing portion, can rotate, and can be supported by the expanding reinforcing portion having a large area, and the connection supporting portion is screwed with respect to the plant fixing portion. Even if such force acts, it can be prevented from being broken or deformed, and its durability can be maintained. The expansion reinforcing plate is formed so that a part or the whole thereof extends in a range of 1/5 to 2 times the width of the frame material main body. This is because if the extension of the expansion reinforcing plate is less than 1/5 of the width of the frame body, there is no sufficient reinforcing effect. This is because the workability at the time of assembling the tool becomes poor. The locking pin corresponds to a bolt-shaped one, a U-shaped pin having no screw portion, a pin having an enlarged portion at the top, and the like.

[0009] The connection support portion is provided with a slide mechanism which can be adjusted and fixed to a predetermined length as a whole, or formed with a number of holes in the length direction thereof, and bolts and nuts are formed in the holes. And an engaging portion of the planting stepladder or the planting fixing portion can be locked through the intermediary. As the slide mechanism, for example, a mechanism having an inner cylinder and an outer cylinder inserted into the inner cylinder is applicable. The inner cylinder portion and the outer cylinder portion are fixed by fixing holes formed in the respective holes and fixing pins inserted into the fixing holes. Alternatively, a screw hole may be provided in the outer cylinder and the inner cylinder may be fixed at a predetermined position by tightening a bolt screwed into the screw hole. Further, the connecting support portion may be divided into three or more stages so as to be slidable with each other. Thus, the length of the connecting support portion can be adjusted in a wide range.

[0010] Each of the planting stepladder, the connecting support portion, and the planting fixing portion may be made of different materials, or may be made of the same material. A solid or hollow material can be used for the frame material constituting the planting fixing portion and the frame portion of the planting stepladder, and its cross section may be circular or elliptical, but it may be square or rectangular. Are easily used because they are easily combined with each other. In addition, these materials are steel materials such as carbon steel and alloy steel, stainless steel materials, aluminum alloy materials, engineering synthetic resins such as polyamide resins,
Wood such as fiber reinforced synthetic resin in which carbon fibers are dispersed in polyamide resin or the like, lauan wood, cedar wood, hinoki wood, etc. are used. The engaging means between the connecting support portion and the stepladder for planting includes a member having a hole such as a square, a rectangle, a circle, or the like, an engagement portion formed in a ring shape, a U shape, or a V shape. Is applicable. As an aspect of the engagement means, a hole and a pin,
Combinations of holes and hooks, hooks and hooks, and the like are preferably used, so that attachment and detachment can be performed easily and firmly. The material of the engaging means is a steel material such as carbon steel and alloy steel, a stainless steel material, an aluminum alloy material, an engineering synthetic resin such as a polyamide resin, a general-purpose synthetic resin such as a polyethylene resin, a polypropylene resin and a polystyrene resin, and a synthetic fiber reinforced synthetic resin. Are used.

According to a second aspect of the present invention, in the first aspect of the present invention, the tree plant fixing portion has a pivot shaft hole into which connection pins provided on the plurality of frame members are inserted. And an adjusting member that is rotatably connected to the frame member on the base end side in a substantially annular or rectangular shape via the rotating shaft hole. With this configuration, the following operation is obtained in addition to the operation of the first aspect. (A) Since the plant fixing part is rotatably connected in a substantially annular or rectangular shape through the pivot shaft hole and the connecting pin, the trunk portion of the plant where the plant fixing part is locked has severe irregularities. Even in the case of a case or a branch, the frame member can be arranged around the trunk without difficulty according to the unevenness. (B) Since the adjusting member is provided to adjust the distance between the frame members on the base end side connected in a substantially annular or rectangular shape, the adjusting member prevents rattling between the plant fixing portion and the tree trunk. As a result, the planting stepladder can be stably supported via the planting stepladder holder. Here, the adjusting member is a rod-shaped member that can maintain the distance at a predetermined value by connecting the frame members via a screw portion, a nut, or the like, and has a handle for manual operation provided at one end thereof. Can be.

According to a third aspect of the present invention, in the invention of the first or second aspect, an end of the connection support portion rotatably connected by the locking pin on the side of the plantation fixing portion is provided. A screwing member configured to press-fit the portion and the frame member by the expansion reinforcing portion and fix the portion at a predetermined angle. With this configuration, the following operation is obtained in addition to the operation of the first or second aspect. (A) The end portion of the connection support portion can be positioned and fixed at a predetermined angle with respect to the plantation fixing portion fixed to the trunk of the plantation, and the degree of freedom with respect to the installation position of the planting stepladder arranged around the plantation , And the plant fixing part and the plant stepladder can be stably maintained, so that workability and safety can be improved. (B) Since the fixing is performed with the screw member, the minute angle range can be easily adjusted, and the stepping holder for planting trees is stably arranged even on the soft and uneven ground. Can be set. Here, the screwing member is a member for fixing an end portion of the connection supporting portion, which is rotatably connected by the locking pin, on the side of the plant fixing portion and the frame member by crimping with the expansion reinforcing portion at a predetermined angle. And used by being screwed into a screw hole formed in the frame material. By tightening the screw member, a minute angle range can be easily adjusted. In addition, in addition to such a screwing mechanism, a plurality of fitting holes are provided at predetermined positions at the end of the connection support portion, and the end of the connection support portion is formed by an engagement pin fitted into the fitting hole. It is also possible to use a pinning mechanism that fixes the frame member to the frame member.

According to a fourth aspect of the present invention, in the planting stepladder holder according to any one of the first to third aspects, the planting stepladder is sandwiched between the legs of the tree planting stepladder and its mounting position is adjustable. And a locking member to which the side of the planting stepladder of the connecting support portion is connected. With this configuration, the following operation is obtained in addition to the operation of any one of the first to third aspects. (A) Since the planting stepladder has a locking member that can be adjusted in the height direction, the end of the connecting support portion fixedly arranged on the planting fixing portion can be easily connected to the planting stepladder, and irregularities can be achieved. The stepladder for planting can be stably maintained against changes in the ground. (B) Since the minute position can be easily adjusted by sliding the locking member along the leg of the planting stepladder, the work of attaching the planting stepladder to the planting plant can be efficiently performed.

According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects,
The connection support portion includes an inner cylinder portion, an outer cylinder portion slidably inserted into the inner cylinder portion, and a screw or pin fixing the inner cylinder portion and the outer cylinder portion at predetermined positions to fix the connection support portion. And a slide mechanism having a section. With this configuration, the following operation is obtained in addition to the operation of any one of the first to fourth aspects. (A) Since the length of the connecting support portion for connecting the planting stepladder and the planting fixing portion can be adjusted, the degree of freedom for adjusting the entire position is increased, and large stones and the like are scattered and the ground is rough. Against this point, fine adjustment is made between the fixed part of the planted tree attached to the trunk of the planted tree and the stepladder for planting to maintain a stable state in which the stepladder for planting does not wobble. It can be further improved. (B) When the length of the connection support portion is fixed at a predetermined position by screwing, fine adjustment of the position can be easily performed by continuously changing the length. (C) When the length of the connection support portion is fixed at a predetermined position by pinning, the length does not change due to loosening of the screw unlike the case of screwing, and it is also easy for planting. The stepladder can be fixed.

According to the sixth aspect of the present invention, there is provided a tree planting stepladder holding apparatus according to any one of the first to fifth aspects.
The frame member of the plant fixing part has an insertion hole through which a trunk fixing member that advances and retreats toward a trunk of the plant to be fixed is inserted. With this configuration, the following operation is obtained in addition to the operation of any one of the first to fifth aspects. (A) The looseness between the trunk of the plant and the plant fixing portion, which cannot be dealt with simply by adjusting the combination and arrangement of the frame members of the plant fixing member, is attached to the frame member with a screw portion so that it can move forward and backward. Since it is easily suppressed by the trunk fixing member provided, the stability of the planting stepladder connected and supported thereto can be further improved. (B) When a screw hole is formed in the frame material and a bolt is screwed into the screw hole to form a trunk fixing member, the trunk of the plant can be easily fixed to the plant fixing member, and the cost is low. Can be configured. The trunk fixing member is a rod-shaped member or the like which has a screw portion or the like and is screwed to and attached to the frame material. The trunk fixing member extends toward the inside of the frame material combined in an annular or rectangular shape. By doing so, it is possible to prevent rattling between the frame material and the trunk of the plant tree inserted therein.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 is a front view of an essential part showing a state in which a stepladder for tree planting according to Embodiment 1 of the present invention is installed on a tree plant. In FIG. 1, 10 is a stepladder holder for planting of the first embodiment, 11 is a stepladder for planting for an operator to perform a pruning operation, and 12 is a planting fixing portion of a stepladder holder for planting 10 fixed to a plant 13. , 14 are connection support portions for connecting between the plant fixing portion 12 and the stepladder 11, and 14 a are hooks formed at one end of the connection support portion 14 and connected to a locking member 40 of the stepladder 11 described later. Department. The planting stepladder 11 is provided with a connecting member for rotatably connecting two sets of ladders each having a step board provided at predetermined intervals to opposed frame portions at an upper end portion, and fixing the both at a predetermined angle. It is a quadruple stepladder. The connection support portion 14 is formed to have an inner cylinder portion or a flat plate (rod shape) portion and an outer cylinder portion to be fitted into the inner cylinder portion or the flat plate (rod shape) portion. It is made of synthetic resin such as material and PC, or composite synthetic resin such as FRP and FRTP. When the outer tube fitted into the inner tube is slidably formed, the entire length of the connection support 14 can be expanded or contracted according to the place of use. The outer cylinder part, the inner cylinder part, and the flat plate (bar-shaped) part are formed with a threaded bolt hole or a locking hole made up of an insertion hole.
Can be fixed at a predetermined length. The slide mechanism for adjusting the entire length of the connection support portion 14 includes an outer tube portion, an inner tube portion, a flat plate (rod-shaped) portion, a fastening fixture, and the like. After pin holes are provided at predetermined intervals and the connection support portion 14 is set to a predetermined length, fixing pins are inserted into corresponding pin holes of the outer tube portion and the inner tube portion to fix the whole. You may.

FIG. 2 is an exploded view of the plant fixing part according to the first embodiment. In FIG. 2, reference numeral 12 denotes a plant fixing part,
Reference numerals 20 and 21 denote a pair of left and right curved or linear frame members made of the above-described metal material, synthetic resin, or composite synthetic resin.
Is an adjusting frame member for connecting the ends of the frame members 20 and 21 to adjust the degree of pinching of the plant 13, and 23 is an extension formed by projecting horizontally at the ends of the frame members 20 to 22 in a vertical and circular shape. Reinforcement part,
Reference numeral 24 denotes a locking pin insertion hole provided substantially at the center of the extension reinforcing portion 23, and reference numeral 25 denotes a screw fixing member for fixing the connection support portion 14 attached to the extension reinforcing portion 23 via the locking pin. Screw holes 26 are horizontal holes formed at predetermined positions of the frame members 21 and 22 in a horizontal direction, and 27 is inserted into the horizontal hole 26 and connected between the frame members 20 and 21 joined by the adjustment frame member 22. An adjusting member having both ends threaded to adjust the length thereof to a predetermined length via a nut 27a and to fix the same,
Reference numeral 28 denotes a plurality of rotation shaft holes into which connection pins for rotatably connecting the frame members 20 to 22 to each other are inserted. An insertion hole for attaching a stem fixing member 29a for fixing. The frame members 20 and 21 are formed to be entirely curved, have a thickness of about 12 to 50 mm, and have a horizontal width of 20 mm.
Those having a length of about 50 mm and a length of about 100 to 300 mm are suitably used. The adjustment frame member 22 formed in a substantially rod shape is formed to be shorter by 100 to 200 mm than the frame members 20 and 21. Each of the frame members 20 to 22 has a diameter of 1 / the above width.
The rotation shaft holes 28 of about 4 to 3/4 are formed at predetermined intervals in the length direction, for example, at intervals of about 20 to 60 mm. The minor diameter of the horizontal hole 26 is 1/4 to 3/4 of the width.
And is formed by a long hole having a length of about 1.5 to 4 times the minor diameter. The through holes 29 are formed in the frame members 20 to 22 of the plant fixing part 12.
Is formed, and the trunk fixing member 29a that advances and retreats toward the trunk of the plant 13 to be fixed is inserted. Thereby, the rattling between the planting fixing part 12 and the planting 13 can be prevented, and the stability at the time of arranging the planting stepladder 10 can be further enhanced. The larger the number of frame members constituting the frame of the plant fixing part 12 is, the higher the degree of adhesion to the trunk of the plant 13 is, and the better the gripping property is. In some cases, the cost may increase, or the frame material may be in close contact with the trunk, making the mounting operation inconvenient. Therefore, it is preferable to select and use the number of frame materials to be used depending on the situation. The minimum number of frame members for constituting the plant fixing part is two, and in this case, it can be manufactured relatively inexpensively. In addition, the expansion reinforcing portion 23 includes the frame members 20 to 22.
Can be arranged at predetermined positions such as the tip portion and the intermediate portion, and an appropriate one can be selected and used from these according to the installation status of the plant 13 and the stepladder 11 for planting.

FIG. 3 is a longitudinal sectional view showing a connection state between the connection support portion and the plant fixing portion. FIG. 4 is a plan view showing a connection state between the connection support portion and the plant fixing portion. 3 and 4, reference numeral 30 denotes a locking pin inserted into the expansion reinforcing portion 23 of the frame members 20 to 22, and reference numeral 31 denotes a planting plant fixing portion side of the connection supporting portion 14 rotatably connected by the locking pin 30. And a frame member 20 to 22 is a screwing member for crimping the frame members 20 to 22 with the expansion reinforcing portion 23 and fixing them at a predetermined angle.

FIG. 5A is a structural view of a locking member mounted on a main leg having a rectangular leg cross section, and FIG. 5B is mounted on a main leg having a circular leg cross section. It is a block diagram of a locking member. In FIG. 5, reference numeral 40 denotes a locking member for locking the main leg of the connecting support portion 14, 41 denotes a main leg portion of the garden plant stepladder 11,
2 and 43 are a pair of main leg support members that sandwich the main leg portion 41,
Reference numeral 44 denotes a ring-shaped portion formed on one of the main leg support members 42 and 43 to which the hook portion 14a of the connection support portion 14 is locked, and 45 denotes a bolt for fixing the main leg support members 42 and 43. .

The method of using the planting stepladder holder according to the first embodiment configured as described above will be described below with reference to the drawings. FIG. 6 is a plan view showing a state in which the plant fixing part is fixed to the plant. As shown in FIG.
The connection pins 0 and 21 are rotatably connected to the adjustment frame member 22 by inserting connecting pins and the like into a rotation shaft hole 28 provided at a predetermined position of the adjustment frame member 22. Next, frame members 20 to 22 connected around the trunk of the plant 13 are arranged. In this way, the frame members 20 to 22 are arranged at predetermined positions, the adjusting member 27 is inserted into the horizontal hole 26 on the base end side of the frame members 20 and 21, and the frame member 2 is
The plant fixing part 12 is fixed to the trunk of the plant 13 by shortening the distance between 0 and 21 and tightening. In addition, if necessary, the insertion holes 29 formed in predetermined portions of the frame members 20 and 21 may be used.
By screwing a stem fixing member 29a that is screwed onto the stem and pressing the tip of the stem against the stem of the plant 13, the stem can be more securely fixed and supported. Next, after any one or two of the expansion reinforcing portions 23 of the frame members 20 to 22 constituting the frame body assembled in this way, the end of the connection support portion 14 is overlapped, and The locking pin 30 is inserted, the connecting support portion 14 is positioned at a predetermined angle around the locking pin 30, and is tightly fixed by tightening with the screw member 31. Finally, as shown in FIGS. 1 and 5, the locking member 40 provided with the ring-shaped portion 44 and the like attached to the planting stepladder 11 is slid along the legs of the planting stepladder 11 to adjust the height thereof.
With the locking member 40 locking the planting stepladder side of the connection support portion 14, the bolt 45 can be tightened and fixed in a state where the whole is stably held.

Since the planting stepladder 10 of the first embodiment is configured as described above, it has the following operation. (A) Since the plant fixing part 12 has the expansion reinforcing part 23 at a predetermined position, the area of the surface to which the connecting support part 14 is rotatably attached via the locking pin 30 and which is joined to the connecting supporting part 14 is increased, and It is possible to improve the durability against the mechanical load caused by the twist caused by the stepladder being placed on the irregular ground. (B) Since the locking pin 30 is inserted into the locking pin insertion hole 24 and the plant fixing part 12 is connected to the plant fixing part 12 side of the connection support part 14, the degree of freedom to rotate each other in the horizontal direction or the like is provided. Is secured, and the planting stepladder 11 can be easily and stably installed at an appropriate position. (C) When the extendable connection support portion 14 is provided, a predetermined space can be secured between the planting stepladder 11 and the fixed plant 13, and the pruning operation can be easily performed. In addition, since a scaffold can be provided on the connecting support portion 14 as necessary, the efficiency of the pruning operation and the securing of safety can be achieved at the same time. (D) Since the rotation shaft hole 28 is provided at a predetermined position of the frame members 20 to 22, the rotation shaft hole 28 is used to adjust the size of the plant 13 and the positional relationship between the plant 13 and the stepladder 11 for planting. Frame materials can be assembled together. (E) Since the insertion holes 29 are provided at predetermined positions of the frame members 20 to 22, a hook for attaching a pruning clip or the like can be engaged with the insertion holes 29, which is excellent in convenience. (F) When the frame members 20 to 22 of the plant fixing part 12 are made of aluminum or an aluminum alloy, the weight can be reduced as compared with that of steel or the like, the mounting work becomes easy, and the reinforcing component The required strength can be ensured by addition or the like, and a simple manufacturing method such as casting or machining can be applied. (G) Since the fixing between the plant fixing part 12 and the connection supporting part 14 is performed by tightening the screwing member 31, the angle between the plant fixing part 12 and the connecting supporting part 14 is adjusted so as to have a predetermined arrangement. Thereafter, it can be easily fixed by the screwing member 31. Thus, the adjustment can be easily performed, and the stepladder for planting can be set in a stable arrangement without causing a rough surface even on a soft and uneven ground. (H) Since the planting stepladder 10 has the locking member 40 that can be adjusted in the height direction, the end of the connecting support portion 14 fixedly arranged on the planting fixing portion 12 is easily connected to the planting stepladder 11. The stepladder 11 can be stably maintained against irregular changes in the ground. (I) Since the locking member 40 can be easily slid along the main leg 41 of the garden stepladder 11 to finely adjust the position, the work of attaching the garden stepladder 11 to the tree plant 13 can be performed efficiently. Can be.

(Embodiment 2) FIG. 7 is a configuration diagram showing a use state of a planting fixing portion in a planting stepladder according to a second embodiment. Note that the planting stepladder holder according to the second embodiment is the same as the planting stepladder holder 10 according to the first embodiment except that the configuration of the planting fixing portion is different, and other configurations are the same. And the detailed description is omitted. In FIG. 7, reference numerals 50 and 51 denote a pair of right and left curved frame members connected to each other, and reference numeral 52 denotes an extension formed by vertically extending a circular shape in the middle of the length of the frame member 50 in the horizontal direction. Reinforcing portions 53 are provided substantially at the center of the extended reinforcing portion 52 and have locking nut insertion holes into which locking pins capable of tightening the nuts are inserted.
A horizontal hole 55 formed in a predetermined position in a horizontal direction is inserted into the horizontal hole 54 and the frame member 5 is rotatably connected to each other.
An adjusting member having both ends threaded for adjusting an opening degree between 0 and 51 via a nut 56, a handle 57, and the like;
Reference numeral 58 denotes a large number of holes formed to hook the frame members 50 and 51 with a tool bag or the like for pruning work or to reduce the overall weight.

Since the planting stepladder of the second embodiment is configured as described above, it has the following operation in addition to the planting stepladder of the first embodiment. (A) Since the expansion reinforcing portion 52 is formed in the middle portion of the frame member 50, the adjusting member 55 for tightening and fixing the frame members 50 and 51 does not become an obstacle, and the connection support portion 14 and the plant fixing portion 1
2 can be easily connected, and the convenience is excellent. (B) Since the adjusting member 55 for adjusting the leg opening angle between the frame portions 50 and 51 to a predetermined value is provided with the handle 57,
The fixing and detachment of the stepladder for planting to and from the plant can be performed extremely easily. (C) Since the frame-like body is composed of the pair of frame members 50 and 51, the connecting portion can be minimized, the mechanical strength can be increased, and the durability can be further improved.

[0024]

According to the stepping holder for planting of the first aspect, the following effects can be obtained. With this configuration, the following operation is obtained. (A) Since one end of the connection support portion is rotatably attached to the expansion reinforcing portion formed on the plant fixing portion via the locking pin, the area of the surface where both are joined is increased, and the ladder is increased. Can be improved with respect to a mechanical load caused by torsion caused by, for example, being placed on irregular ground. (B) Since the locking pin is inserted into the locking pin insertion hole and the plant fixing part and the connection fixing part side of the connection supporting part are connected, the degree of freedom to rotate each other in a horizontal direction or the like is secured, and the planting is performed. The stepladder can be easily and stably installed at an appropriate position. (C) Since it has the connection support portion, a predetermined space can be secured between the planting stepladder and the fixed planting tree, and the pruning operation can be easily performed. In addition, a scaffold can be provided on the connection support portion as required, so that the efficiency of the pruning operation and the safety can be ensured at the same time. (D) When the frame material of the plant fixing part is made of aluminum or aluminum alloy, the weight can be reduced as compared with steel and the like, the mounting work becomes easy, and it is necessary to add a reinforcing component or the like. Strength can be ensured, and a simple manufacturing method such as casting or machining can be applied.

According to the stepping holder for planting of the second aspect, the following effects can be obtained in addition to the effects of the first aspect. (A) Since the plant fixing part is rotatably connected in a substantially annular or rectangular shape via a rotating member, the part of the trunk of the plant where the plant fixing part is locked is severely uneven or branches off. Even in such a case, the frame material can be arranged around the trunk without difficulty according to the unevenness. (B) Since the adjusting member is provided to adjust the distance between the frame members on the base end side connected in a substantially annular or rectangular shape, the adjusting member prevents rattling between the plant fixing portion and the tree trunk. As a result, the planting stepladder can be stably supported via the planting stepladder holder.

According to the third aspect of the present invention, in addition to the effects of the first and second aspects, the following effects can be obtained. (A) The end portion of the connection support portion can be positioned and fixed at a predetermined angle with respect to the plantation fixing portion fixed to the trunk of the plantation, and the degree of freedom with respect to the installation position of the planting stepladder arranged around the plantation , And the plant fixing part and the plant stepladder can be stably maintained, so that workability and safety can be improved. (B) Since the fixing is performed with the screw member, the minute angle range can be easily adjusted, and the stepping holder for planting trees is stably arranged even on the soft and uneven ground. Can be set.

According to the stepping holder for planting of the fourth aspect, the following effects can be obtained in addition to the effects of any one of the first to third aspects. (A) Since the planting stepladder has a locking member that can be adjusted in the height direction, the end of the connecting support portion fixedly arranged on the planting fixing portion can be easily connected to the planting stepladder, and irregularities can be achieved. The stepladder for planting can be stably maintained against changes in the ground. (B) Since the minute position can be easily adjusted by sliding the locking member along the leg of the planting stepladder, the work of attaching the planting stepladder to the planting plant can be efficiently performed.

According to the fifth aspect of the present invention, the following effects can be obtained in addition to the effects of any one of the first to fourth aspects. (A) Since the length of the connecting support portion for connecting the planting stepladder and the planting fixing portion can be adjusted, the degree of freedom for adjusting the entire position is increased, and large stones and the like are scattered and the ground is rough. Also, fine adjustment between the fixed part of the planted tree attached to the trunk of the planted tree and the stepladder for planting is maintained in a stable state where the stepladder for tree planting does not fluctuate, and the safety during pruning work etc. It can be further improved. (B) When the length of the connection support portion is fixed at a predetermined position by screwing, fine adjustment of the position can be easily performed by continuously changing the length. (C) When the length of the connection support portion is fixed at a predetermined position by pinning, the length does not change due to loosening of the screw unlike the case of screwing, and it is also easy for planting. The stepladder can be fixed.

According to the planting stepladder of the sixth aspect, the following effect can be obtained in addition to the effect of any one of the first to fifth aspects. (A) The looseness between the trunk of the plant and the plant fixing portion, which cannot be dealt with simply by adjusting the combination and arrangement of the frame members of the plant fixing member, is attached to the frame member with a screw portion so that it can move forward and backward. Since it is easily suppressed by the trunk fixing member provided, the stability of the planting stepladder connected and supported thereto can be further improved. (B) When a screw hole is formed in the frame material and a bolt is screwed into the screw hole to form a trunk fixing member, the trunk of the plant can be easily fixed to the plant fixing member, and the cost is low. Can be configured.

[Brief description of the drawings]

FIG. 1 is a front view of a garden stepladder holder according to a first embodiment.

FIG. 2 is an exploded configuration diagram of a plant fixing part according to the first embodiment.

FIG. 3 is a longitudinal sectional view showing a connection state between a connection support portion and a plant fixing portion.

FIG. 4 is a plan view showing a connection state between a connection support portion and a plant fixing portion.

FIG. 5 (a) is a configuration diagram of a locking member mounted on a garden plant stepladder having a rectangular leg cross section. (B) A configuration diagram of a locking member mounted on a tree planting stepladder having a circular leg cross section.

FIG. 6 is a plan view showing a state in which the plant fixing part is fixed to the plant;

FIG. 7 is a configuration diagram showing a usage state of a planting fixing portion of the stepladder holder for planting of Embodiment 2.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Planting stepladder 11 Planting stepladder 12 Planting fixing part 13 Planting 14 Connection support part 14a Hook part 20 Frame material 21 Frame material 22 Adjustment frame material 23 Expansion reinforcement part 24 Lock pin insertion hole 25 Screw hole 26 Horizontal hole 27 Adjusting member 27a Nut 28 Rotating shaft hole 29 Insertion hole 29a Trunk fixing member 30 Locking pin 31 Screw fixing member 40 Locking member 41 Main leg 42 Main leg supporting member 43 Main leg supporting member 44 Ring-shaped portion 45 Bolt 50 Frame Material 51 Frame 52 Expansion reinforcement 53 Locking pin insertion hole 54 Horizontal hole 55 Adjusting member 56 Nut 57 Handle 58 Hole

Claims (6)

[Claims] 1. A plant fixing part in which a plurality of frame members are combined into a substantially annular or substantially rectangular shape and a trunk of a plant is inserted and fixed therein, a stepladder for planting arranged around the plant, and A connection support portion connecting between the plant fixing portion, an expansion reinforcing portion protruding from the frame material of the plant fixing portion, and an end of the connection supporting portion on the plant fixing portion side via a locking pin. And a locking pin insertion hole provided substantially at the center of the expansion reinforcing portion, which is rotatably attached to the stairs. 2. The plant fixing part according to claim 1, further comprising: a rotating shaft hole into which connecting pins provided on the plurality of frame members are inserted; and a substantially annular or rectangular shape rotatably rotatable through the rotating shaft hole. 2. The stepladder for tree planting according to claim 1, further comprising an adjusting member for narrowing the connected frame members on the base end side. 3. An expansion reinforcing portion press-fits an end of the connection supporting portion rotatably connected by the locking pin on the side of the plant fixing portion and the frame member, and fixes the frame material at a predetermined angle. The stepladder for tree planting according to claim 1 or 2, further comprising a member. 4. The planting stepladder is provided with a locking member which is sandwiched between the legs of the planting stepladder so that its mounting position can be adjusted, and to which the side of the planting stepladder of the connecting support portion is connected. The stepladder holder for planting according to any one of claims 1 to 3. 5. The connection support portion includes an inner cylinder portion, an outer cylinder portion slidably inserted into the inner cylinder portion, and screws or pins the inner cylinder portion and the outer cylinder portion at predetermined positions. 5. The stepladder according to any one of claims 1 to 4, further comprising a slide mechanism having a fixing portion for fixing the stepladder. 6. A frame member of said plant fixing part having an insertion hole through which a trunk fixing member which advances and retreats toward a trunk of a plant to be fixed is inserted. The stepladder holding tool for planting according to any one of the above.