JP3694751B2 - Smoothing disc device in Trowell - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a smoothing disk device for performing “unevenness removal” by attaching to a trowel that performs a soil finish in the case of soil coating with mortar.
[0002]
[Prior art]
Conventionally, it has been known that the surface of the soil is smoothed by trowel when the soil is coated with mortar.
[0003]
As such a trowel, a hand-type trowel in which an operator works while walking and a riding-type trowel in which an operator works while riding on his own are known.
[0004]
The hand-type trowel has a radial arm group extending at equal intervals in the circumferential direction on the longitudinal axis driven and rotated by a drive source, and a hand-type trowel provided with a long handle for a drive device having a blade on each arm. The Trowell machine is configured, and the worker holds the handle and works by walking with the hand-type trowel while acclimatizing the surface of the soil with the blade rotating with the arm. At this time, there are two types of conventional hand-type trowells: a three-type trowell having three arms in the driving device and a four-type trowell having four arms in the driving device.
[0005]
On the other hand, the riding-type trowel includes four arm groups extending radially at equal intervals in the circumferential direction on the longitudinal axis driven and rotated by a driving source, and two driving devices each having a blade on each arm. This is a riding type Trowell machine that is connected in the direction and has a seat mounted on a bowl-shaped frame. Therefore, the worker makes the riding type trowel self-propelled by getting on the seat, and works while acclimatizing the surface of the soil with the blade rotating with the arm.
[0006]
By the way, it is known that such a Trowell is equipped with a smoothing disk as an attachment before performing a finishing work by “pressing” the surface of the soil with a blade, and a preliminary work by “unevening” of the surface of the soil with a disk. Yes. As disclosed in Japanese Utility Model Publication No. 62-33863, the smoothing disk is attached so as to cover the lower side of the arm group in the hand type trowel, and is provided with a claw piece that is detachably locked to the blade. .
[0007]
[Problems to be solved by the invention]
As described above, in the case of the hand type trowell, there are two types of three trowells having three arms in the driving device and four trowells having four arms in the driving device. . For this reason, conventional smoothing discs are provided with claw pieces at three locations so that they can be attached to a three-type trowell, and those with claw pieces provided at four locations so that they can be attached to a four-type trowell. Each is provided.
[0008]
However, since the smoothing disc provided with the claw pieces at three positions is dedicated to the three-type trowell, it cannot be attached to the four-type trowell. Similarly, a smoothing disc having claw pieces provided at four locations is dedicated to the four-type trowel, and therefore cannot be attached to the three-type trowell. That is, the smoothing disk is not compatible between the three-row trowell and the four-row trowell, which is very inconvenient for an operator who purchases and uses a plurality of trowells.
[0009]
On the other hand, as described above, the riding type trowel is standardized so that the number of arms of the driving device is common in all models, and the driving device includes four arms. Usually, in order to take advantage of the fact that two drive units are connected in series, the configuration is such that the blade rotation trajectories in the drive units connected to the left and right overlap each other (overlap configuration). ing. At this time, the two drive devices connected in series have the same number of rotations on the vertical axis. Therefore, the blades of adjacent drive devices are rotated in synchronization so that the blades do not interfere with each other. Yes.
[0010]
However, in such an overlap configuration, if the smoothing disk is attached to the two drive devices connected in series so as to completely cover each blade group, the left and right smoothing disks interfere with each other. Therefore, as a result, it has been conventionally recognized that a smoothing disk cannot be attached.
[0011]
[Means for Solving the Problems]
The present invention provides a smoothing disk device that solves the above-mentioned problems. The first means is a radial disk extending at equal intervals in the circumferential direction on a longitudinal axis driven and rotated by a drive source. A hand-type Trowell machine equipped with a plurality of arm groups and a drive device equipped with a blade on each arm is provided with a claw piece that covers the lower side of the arm group and is detachably locked to the blade. In the smoothing disc, the smoothing disc is a hand type trowel that has four arms, a first type claw piece that is detachably locked to at least a plurality of blades, and a hand that has three arms. And a second type of claw piece that is removably engaged with at least a plurality of blades in the machine type Trowell machine.
[0012]
Further, the present invention is configured as the second means, in the smoothing disk device as described in the first means, in the radial direction at equal intervals in the circumferential direction on the vertical axis driven and rotated by the drive source. Covering the underside of the arm group in each earth drive device for the riding type Trowel machine having four arm groups extending and two drive devices each having a blade in each arm connected in the lateral direction. In addition, an adapter that is detachably locked to the blade is provided, and the adapter is inserted through the first type claw piece and the second type claw piece with the smoothing disk superimposed on the lower surface of the adapter. A locking hole is formed for locking, and a locking means is provided on the upper surface of the adapter so as to be removably locked to at least a plurality of blades in the driving device. Located in.
[0013]
Further, the present invention is configured as a third means, which is a smoothing disk device as described as the second means, wherein the blades in the two drive devices connected to the riding type trowel machine are connected. In the configuration in which the rotation trajectories are overlapped with each other, the diameter D1 of the adapter and the diameter D2 of the smoothing disk are D>D2> D1 with respect to the rotation trajectory diameter D of the blade, and two drive devices Two sets of adapters and smoothing disks attached to each other are constructed so as not to interfere with each other.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
[0015]
(Configuration of smoothing disk device for hand type trowel)
As shown in FIG. 1, the hand type Trowell machine 1 includes a radial arm group 3 extending at equal intervals in the circumferential direction on a vertical axis driven and rotated by a driving source 2 such as an engine, and each arm 3 has A drive device 5 having a blade 4 is configured, and the drive device 5 is supported by a ring-shaped base frame frame 7 with respect to an annular base frame 6 along the rotation trajectory of the blade group 4. A handle frame 8 extending from 7 is provided. Such a configuration is conventionally known. When applying mortar to the soil, the operator holds the handle 8a, and adjusts the surface of the soil by "pressing" with the blade 4 that rotates together with the arm 3, while holding the handle 8a. Work by walking together with the trowel type machine 1.
[0016]
As described above, the hand-type trowell includes the four-type trowell machine 1A in which the drive device 5 is configured by the four arms 3a, 3b, 3c, and 3d as shown in FIG. 1A, and FIG. Two types of the three-trowel main machine 1B in which the driving device 5 is constituted by three arms 3e, 3f, and 3g as shown in FIG. Accordingly, the four-trowel machine 1A has four arms 3a, 3b, 3c, and 3d arranged at equal intervals in the circumferential direction, and is provided with blades 4a, 4b, 4c, and 4d. The Trowell machine 1B is provided with blades 4e, 4f, and 4g on three arms 3e, 3f, and 3g arranged at equal intervals in the circumferential direction.
[0017]
Therefore, according to the present invention, there is provided a smoothing disk 9 that can be attached to either the four-trowel main machine 1A or the three-trowel main machine 1B. As described above, the smoothing disk 9 is attached so as to cover the lower side of the blade group 4 as an attachment before the finishing operation by “pressing” the surface of the soil with the rotating blade group 4, and the rotating smoothing disk 9. This is for preparatory finishing work by “unevening” of the soil surface.
[0018]
In the embodiment shown in FIG. 1, the smoothing disk 9 includes an annular wall 10 b that is erected so as to spread upward at the periphery of the flat disc portion 10 a, and is substantially radially on the upper surface of the disc portion 10 a. A claw piece group 11 is provided to extend in the direction. In the case of the illustrated example, the claw piece group 11 is composed of six claw pieces 11a, 11b, 11c, 11d, 11e, and 11f, and each claw piece is a circle as shown in FIG. A fixed part 12 fixed to the upper surface of the plate part 10a by welding or the like, a bent part 13 rising from the fixed part 12, and a bent part 13 extending in parallel to the disk part 10a. The claw portion 14 is provided, and a locking groove 15 is formed between the claw portion 14 and the disc portion 10a. The locking groove 15 is opened facing the rotation direction R of the blade 4, and therefore, the side edge of the blade 4 facing the rotation direction R is inserted into the locking groove 15 so that it can be attached to and detached from the blade 4. The smoothing disk 9 is rotated integrally with the blade 4.
[0019]
As shown in FIG. 1 (A), the claw piece group 11 composed of six claw pieces is attached to a two-type trowel machine 1A equipped with four arms 3 as shown in FIG. The claw pieces 11a, 11b, 11d, and 11f constitute a first type claw piece, and the four blades 4a, 4b, 4c, and 4d of the driving device 5 are detachably locked to the respective claw pieces. It is configured as follows. On the other hand, as shown in FIG. 1 (B), when the smoothing disk 9 is attached to the three-type trowel machine 1B having the three arms 3, a second type of claw pieces 11a, 11c, and 11e are used. A claw piece is formed, and the three blades 4e, 4f, and 4g of the driving device 5 are detachably engaged with the claw pieces.
[0020]
Therefore, it is possible to attach to either the four-type trowel main machine 1A or the three-type trowel main machine 1B even though it is one type of smoothing disk 9. In the illustrated embodiment, the four types of four blades 4a, 4b, 4c, 4d in the four-type trowell machine 1A are used as the first type by four claw pieces 11a, 11b, 11d, 11f. The claw piece is configured, and the second type claw piece is configured by the three claw pieces 11a, 11c, and 11e that are locked to all the three blades 4e, 4f, and 4g in the three-type Trowell machine 1B. However, it is not essential to provide the number of claw pieces according to the number of blades when attaching to either the 4-trowel main machine 1A or the 3-trowel main machine 1B. A plurality of claw pieces 11 to be locked to the blade 4 may be provided.
[0021]
(Configuration of smoothing disc device for riding type Trowell)
As shown in FIG. 2, the riding type Trowell machine 1 </ b> C has two drive devices 5 a and 5 b connected in the lateral direction, and each drive device 5 a and 5 b has a drive source (not shown) such as an engine. ) Are provided with four arms 3a, 3b, 3c, 3d extending radially at equal intervals in the circumferential direction on the longitudinal axis driven and rotated by blades 4a, 4b, 4c, 4d. A base frame frame 7c having a bowl shape is provided on a base frame 6c formed in a substantially oval shape including the rotation trajectory of the blade group 4 in the two drive devices 5a and 5b. A seat 16 is mounted. Although not shown, a drive source such as an engine is mounted on the lower side of the base frame 7c, and drives and rotates the two drive devices 5a and 5b via transmission means such as a chain. At this time, the blade groups 4 in the two drive devices 5a and 5b provided in series are overlapped with each other in the rotation trajectory, and the blade groups 4 are rotated synchronously at the same rotational speed. It is configured not to interfere with each other. Such a configuration is known in the art, and when applying a mortar to the soil, the operator makes the riding-type trowel machine 1C self-propelled by getting on the seat 16 and connected to the drive devices 5a, 5b. The finishing operation is performed while the surface of the soil is acclimatized by “pressing” with the blade group 4 driven and rotated by.
[0022]
Therefore, according to the present invention, the smoothing disk 9 that can be attached to the hand-type trowell (four-type trowel main unit 1A and three-type trowel main unit 1B) as described above is directly mounted on the riding type trowell main unit 1C. Can be attached and an adapter 17 for this purpose is provided. The smoothing disk 9 is configured as described above with reference to FIG.
[0023]
The adapter 17 is formed of a disk formed in a diameter that does not interfere with each other when attached to the two drive devices 5a and 5b that are connected in series, and is fitted into the annular wall 10b of the smoothing disk 9, and the disk part. 10a is overlaid on the upper surface of 10a. Therefore, when the diameter of the adapter 17 is D1, the diameter of the smoothing disk 9 is D2, and the diameter of the rotation locus of the blade group 4 is D, D>D2> D1.
[0024]
The adapter 17 has locking holes 18a and 18b for inserting and locking all the claw pieces 11a, 11b, 11c, 11d, 11e and 11f constituting the first type claw piece and the second type claw piece in the smoothing disc 9. 18c, 18d, 18e, and 18f, and as shown in FIG. 2 (B), the claw piece 11 is detachably inserted and locked in the corresponding locking holes 18, thereby smoothing the adapter 17 and the smoothing. The disk 9 can be integrated. At this time, as shown in the figure, it is preferable to provide a lower thick portion 19 that bulges from the center portion of the adapter 17 to the lower surface, and to support this on the upper surface of the smoothing disk 9.
[0025]
Further, on the upper surface of the adapter 17, locking means 20a, 20b which are detachably locked to the four blades 4a, 4b, 4c, 4d in the respective driving devices 5a, 5b of the riding type trowel machine 1C. 20c, 20d, and in the illustrated example, each locking means is substantially parallel to each side of the upper thick portion 21 forming a square such as a square bulging from the central portion of the adapter 17 to the upper surface. The ribs are configured to extend, and each rib is disposed at a position that does not interfere with the locking holes 18a, 18b, 18c, 18d, 18e, and 18f.
[0026]
Therefore, when the adapter 17 is arranged below the blade group 4 in each of the driving devices 5a and 5b with the smoothing disk 9 attached and integrated, the rib group faces the rotational direction of the blade group 4 that is driven and rotated. Since the side edges are received, the smoothing disk 9 can be driven and rotated via the adapter 17. Therefore, before performing the finishing operation by “pressing” the surface of the soil with the blade group 4, the finishing work by “unevening” of the surface of the soil can be performed by attaching the smoothing disk 9 via the adapter 17.
[0027]
In the example shown in the figure, the locking means 20a, 20b, 20c, and 20d of the adapter 17 are formed by ribs made of square material, but the ribs are similar to the claw pieces 11 of the smoothing disc 9. It is preferable to form a groove into which a side edge facing the rotation direction of the blade group 4 is fitted. In addition, it is not essential to provide the four locking means 20a, 20b, 20c, 20d corresponding to the four blades 4a, 4b, 4c, 4d. The locking means 20 may be provided.
[0028]
【The invention's effect】
According to the present invention, the smoothing disk 9 can be attached to either the four-trowel main machine 1A or the three-trowel main machine 1B in the hand-type trowel, and is mounted on the riding trowel via the adapter 17. There is an effect that it can be attached to the machine 1C.
[Brief description of the drawings]
FIG. 1 shows an embodiment of a smoothing disc in a smoothing disc device according to the present invention, wherein (A) is a perspective view when attaching to a four-type trowel unit in a hand-type trowell, and (B) is an illustration. FIG. 4C is a perspective view of the hand type trowel when it is attached to the three-type trowel machine, and FIG. 5C is a cross-sectional view showing a locking portion between the blade and the smoothing disk of the trowel machine.
FIGS. 2A and 2B show an embodiment of an adapter and a smoothing disk in a smoothing disk device according to the present invention, wherein FIG. 2A is a perspective view when mounted on a riding type trowel, and FIG. 2B is an adapter and smoothing. It is sectional drawing which shows the latching | locking part of a disk.
[Explanation of symbols]
1A Hand type 4 type Trowell machine 1B Hand type 3 type Trowell machine 1C Riding machine type Trowel machine 3 (3a-3g) Arm 4 (4a-4g) Blade 5 (5, 5a, 5b) Driving device 9 Smoothing disk 11 (11a to 11f) Claw piece 17 Adapter 18 (18a to 18f) Locking hole 20 (20a to 20d) Locking means

Claims (2)

Of a driving device 5a, 5b provided with four arms 3 group extending radially at equal intervals in the circumferential direction on the longitudinal axis driven and rotated by a driving source, and having blades 4a, 4b, 4c, 4d on each arm. An adapter 17 that covers the lower side of the arm group in each earth drive device 5a, 5b and is detachably locked to the blade is provided for the riding type Trowell machine 1C in which two units are connected in the horizontal direction. Configuration,
The adapter 17 is a member that inserts and locks the first type claw pieces 11a, 11b, 11d, and 11f and the second type claw pieces 11a, 11c, and 11e in a state where the smoothing disk 9 is superimposed on the lower surface of the adapter. Stop holes 18a, 18b, 18c, 18d, 18e, 18f are opened, and locking means 20a, 20b, 20c, which are detachably locked to at least the plurality of blades 4 in the drive device on the upper surface of the adapter. A smoothing disk device in Trowell characterized by comprising 20d. The smoothing disk device according to claim 1, wherein the rotational trajectories of the blades 4 in the two drive devices 5a and 5b connected to the riding type trowel machine 1C are overlapped with each other.
The diameter D1 of the adapter 17 and the diameter D2 of the smoothing disk 9 are D>D2> D1 with respect to the rotational trajectory diameter D of the blade 4, and the adapter 17 attached to each of the two driving devices 5a and 5b. And a smoothing disk device in Trowell, wherein two sets of the smoothing disks 9 are configured so as not to interfere with each other.
that's all

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