JPH08254011A - Mortar placing device - Google Patents

Abstract

PURPOSE: To improve the work efficiency and place a stable quantity of mortar at the time of executing a work for placing mortar in a joint groove formed on a floor surface or a roof surface constructed by arranging panels side by side. CONSTITUTION: A discharge port 1b is provided on the bottom of the main body 1a of a hopper 1 for storing mortar, and the main body 1a is provided with a wheel 2, a traveling guide means 3 inserted in a joint groove, and a mortar pressing member 4 for flattening the surface of the placed mortar. An impeller 5a for forcedly discharging the stored mortar is disposed in the vicinity of the discharge port 1b in the interior of the main body 1a, and a gear 5e fixed to a shaft 5d of the impeller 5c is meshed with a gear 5c fixed to the wheel 2. With the rotation of the wheel 2, the impeller 5a is rotated to forcedly transfer the mortar stored in the main body 1a to the discharge port 1b side. An idle gear is interposed between the gear 5c and the gear 5e to form a clutch means for connecting and disconnecting the gears 5c, 5e by the operation of a lever.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mortar placing device for placing mortar in a joint groove formed between panels of a floor or a roof constituted by panels.

[0002]

2. Description of the Related Art A plurality of PC panels or ALC panels are laid in parallel to form a floor surface or a roof surface. On such a floor surface or roof surface, joints are formed between adjacent panels, and mortar is placed in the joint grooves.

The operation of placing mortar in the joint groove will be described. As shown in FIG. 8, a hopper 52 having an inverted triangle cross section and a bottom portion having a size corresponding to the width dimension of the joint groove 51 and having an appropriate length is formed, and mortar is accommodated in the hopper 52. The upper part of the joint groove 51 is covered, and while the worker is moving, the accommodated mortar is placed in the joint groove 51.

In Japanese Patent Laid-Open No. 6-17531, a hose,
There is disclosed a mortar driving tip fitting for driving mortar pumped from a mortar pump through a handle into a joint groove. In this technique, an operator grips a handle, inserts a part of the tip fitting into the joint groove, and moves the mortar in one direction along the joint groove to drive the mortar pumped into the joint groove. I can. By pressing the surface of the mortar cast in the joint groove with the pressing member, the mortar can be flattened and finished.

[0005]

In the technique shown in FIG. 8, the worker must lean forward and pull the heavy hopper to pour the mortar. When continuous work is performed, excessive labor is required. May be forced. Whether the hopper is dragged or pushed, careful attention is required to make the moving direction of the hopper coincide with the joint groove. Further, the mortar is simply placed in the joint groove, and pressing and finishing work of the mortar are required separately. Further, even when the hopper is moved to another joint groove, the mortar contained therein is discharged from the hopper, which may waste the mortar or contaminate the panel.

In the technique disclosed in Japanese Patent Laid-Open No. 6-17531, workability at the time of placing mortar in the joint groove is improved. However, the placement speed depends on the capacity of the mortar pump, and since most mortar pumps are of the squeeze pumping type, the discharge amount is not stable and varies, so the mortar is placed uniformly in the joint groove. The problem is that it is not easy. Further, since the mortar is driven by the tip connected to the hose, it is not easy to handle the hose, and the hose staff is required in addition to the staff. Further, since the mortar can be placed by gripping the handle, workability is improved, but there is a problem that it is not easy to move the tip fitting along the joint groove.

SUMMARY OF THE INVENTION An object of the present invention is to provide a mortar placing device capable of placing a stable amount of mortar while improving workability when placing mortar in a joint groove.

[0008]

In order to solve the above-mentioned problems, a mortar placing device according to the present invention is a mortar placing device for placing mortar in a joint groove, containing mortar and having a mortar at the bottom. A hopper provided with a discharge port for discharging the hopper, wheels for moving the hopper, and travel guide means inserted in the joint groove to guide the movement of the hopper.

In the above-mentioned mortar placing apparatus, it is preferable that a mortar pressing member for flattening the surface of the mortar placed in the joint groove is provided at the rear of the discharge port. Further, it is preferable to provide mortar discharging means inside the hopper near the discharge port for discharging the mortar accommodated as the wheels rotate, and clutch means for connecting and disconnecting power transmission to the mortar discharging means by rotation of the wheels. More preferably.

[0010]

In the above mortar placing device, the wheels are brought into contact with the periphery of the joint groove, for example, the surface of the panel, and the traveling guide means is inserted into the joint groove to move the hopper.
The mortar contained in the hopper can be discharged from the discharge port and can be placed over the entire length of the joint groove. Since the wheels make rolling contact with the surface of the panel or the like, the resistance when moving the hopper can be reduced. Further, the hopper can be guided along the joint groove by the traveling guide means inserted in the joint groove.

When a mortar pressing member for flattening the surface of the mortar that is placed in the joint groove is provided at the rear of the discharge port provided in the hopper, the hopper is moved to place the mortar in the joint groove. The surface of the cast mortar can be made flat.

Further, in the case where a mortar discharging means for discharging the mortar along with the rotation of the wheel is provided inside the hopper and in the vicinity of the discharge port, the wheel is brought into contact with the surface of the panel or the like to move the hopper. Accordingly, the mortar contained in the hopper can be forcibly discharged.

Further, when clutch means for connecting and disconnecting power transmission to the mortar discharging means by rotation of the wheels is provided,
It is possible to select forcible discharge of the mortar contained in the hopper as the wheels rotate, or to stop discharge of the mortar.

[0014]

EXAMPLE An example of the mortar placing device will be described below with reference to the drawings. 1 is a side sectional view of a mortar placing device according to the first embodiment, FIG. 2 is a view taken along the line II-II of FIG. 1, FIG. 3 is a view taken along the line III-III of FIG. 1, and FIG. FIG. 5 is a diagram illustrating an example, FIG. 5 is a diagram illustrating a use state, FIG. 6 is a side view of a mortar placing device according to a second embodiment, and FIG. 7 is an enlarged view of a main part.

The mortar placing apparatus according to the present invention, as shown in FIG. 4, for example, has an eye formed between adjacent panels P on a floor surface constructed by laying panels P or a roof surface. This is a device for placing mortar in the trench M, and is configured to improve the workability of the placing work and reduce the labor of the worker. The size of the joint groove M is not particularly limited. However, the mortar placing devices A and B, which will be described later, are constructed so as to be able to correspond to the joint groove M having a width of about 25 mm to 60 mm.

First, the construction of the mortar placing apparatus A according to the first embodiment will be described with reference to FIGS.

The hopper 1 is composed of a container having an open top as a mortar input port, and a discharge port 1b for discharging the stored mortar is provided at the bottom of the main body 1a. The main body 1a is formed so that its cross-sectional area gradually becomes smaller toward the discharge port 1b, and the mortar contained therein can flow toward the discharge port 1b by its own weight. Further, a handle 1c is provided on the upper portion of the main body 1a to move the mortar placing device A while being gripped by an operator.

Below the main body 1a constituting the hopper 1, a pair of wheels 2 are provided. This wheel 2 is wheel 2
The grounding point 2a and the discharge port 1b are arranged on the main body 1a so as to be at substantially the same level, and are rotatably attached to the main body 1a.

A traveling guide means 3 is provided on one surface 1d of the main body 1a constituting the hopper 1. In this travel guide means 3, a contactor 3a provided at the tip is arranged inside the joint groove M, and contacts a part of the groove M to deviate the moving direction of the mortar placing device A from the joint groove M. It is a guide that does not exist.

The traveling guide means 3 includes a shaft 3b having a contactor 3a attached to the tip thereof, a sliding guide 3c for fitting the shaft 3b in the vertical direction of the main body 1a, and the contactor 3a.
It is composed of a spring 3d that urges the spring 3d away from a. Therefore, the contactor 3a is constantly urged toward the bottom of the joint groove M by the spring 3d, and can contact the bottom portion or the vicinity of the bottom portion and follow the joint groove M.

The contactor 3a may be anything that can contact the bottom of the joint groove M or a part of the vicinity of the bottom. For example, a cylindrical member as shown in FIG. 1 or a rotatable roller is used. Is possible. When a roller is used as the contactor 3a, the rotation axis of the roller is preferably arranged in the horizontal direction. In addition, when the level of the contactor 3a in the height direction is adjustable, it can be applied to grooves having different depths, which is advantageous.

A mortar pressing member 4 is provided on a surface 1e (a rear surface of the discharge port 1b) facing the surface 1d of the main body 1 to which the traveling guide means 3 is attached. The mortar pressing member 4 has a function of pressing the surface of the mortar cast in the joint groove M to level it to a flat surface, and has a plate shape having a width dimension larger than the width dimension of the joint groove M. It is composed of the members.

The mortar pressing member 4 needs to be able to press the surface of the mortar, and is made of a material having appropriate rigidity and spring properties, for example, spring steel or phosphor bronze plate which is a material of a leaf spring. It is preferable. Further, since the mortar pressing member 4 may be worn out as the frequency of use increases, it is detachably attached to the surface 1e of the main body 1a with the screw 4a or the like. An elongated hole 4b is formed in the portion of the mortar pressing member 4 to which the screw 4a is attached, and the level can be adjusted according to the surface when the mortar is cast.

A mortar discharging means 5 for discharging mortar as the wheels 2 rotate is provided inside the main body 1a of the hopper 1 at a position facing the discharge port 1b provided at the bottom. This mortar discharging means 5 is a transfer member 5a for forcibly transferring mortar toward the discharge port 1b.
And a transmission member 5 that transmits the rotation of the wheel 2 to the transfer member 5a.
b.

The transfer member 5a has a function of transferring the mortar contained in the main body 1a toward the discharge port 1b. In the present embodiment, the transfer member 5a is composed of an impeller 5a having a plurality of plate blades and rotatably attached to the main body 1a. The rotation of the impeller 5a removes the mortar between the plate blades. It is configured so that it can be transferred. However,
The transfer member 5a does not necessarily have to be configured by an impeller having a plurality of plate blades, and may be configured by mounting a plurality of rod-shaped members on the shaft while changing their angles. In particular, when the resistance generated when the mortar is transferred by the plate blade is large, it is preferable to use the transfer member 5a made of a rod-shaped member.

The transmission member 5b transfers the rotation of the wheel 2 to the transfer member 5b.
It has a function of transmitting to a. In this embodiment, the transmission member 5
As b, it is constituted by a gear 5c fixed to the wheel 2 and a gear 5e fixed to a shaft 5d of the impeller 5a.
However, the transmission member 5b does not necessarily have to be configured by a gear, and may be, for example, rubber rings that contact each other instead of the gears 5c and 5e. In particular, when the cast mortar adheres between the gears, it is not easy to maintain the gears, and a rubber ring is preferable.

Mortar placing apparatus A constructed as described above
The operation of placing mortar in the joint groove M will be described with reference to FIG. After the mortar is housed in the main body 1a of the hopper 1, the mortar placing device A is opposed to the target joint groove M, and the contactor 3a of the traveling guide means 3 is inserted into the groove M and brought into contact therewith. When the wheel 2 is brought into contact with the panel P and moved, the rotation of the wheel 2 is transmitted to the shaft 5d via the gears 5c and 5e to rotate the impeller 5a. Impeller 5a
The mortar stored in the main body 1a by the rotation of the
Transferred in the direction of b.

The transferred mortar is discharged from the discharge port 1b and placed in the joint groove M. The surface of the mortar that has been cast in the joint groove M is pressed by the mortar pressing member 4, and the portion that rises from the joint groove M is evened out. In particular,
When the mortar placing device A is moved, the moving direction of the device A is guided by the contact 3a of the traveling guide means 3, and the device A does not deviate from the joint groove M.

Next, a mortar placing device B according to the second embodiment will be described with reference to FIGS. In the drawings, the same portions and portions having the same functions as those of the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

The mortar placing device B according to the present embodiment has the same function as the mortar placing device A for placing mortar in the joint groove M, but the rotation of the wheel 2 is selectively changed to the impeller 5.
It is different in that it is configured to be transmitted to a.
Incidentally, the traveling guide means 3 and the mortar pressing member 4 are omitted in the figure.

Two impellers 5a are arranged inside the main body 1a constituting the hopper 1 and near the discharge port 1b. A gear 5e having the same number of teeth is fixed to the shaft 5d of each impeller 5a so that the blades provided in each impeller 5a can rotate without interfering with each other.

Between the gear 5c fixed to the wheel 2 and the gear 5e fixed to the impeller 5a, the rotation of the wheel 2 is changed to the impeller 5a.
Clutch means 6 is provided for transmitting or disengaging. The clutch means 6 includes an idle gear 6a arranged between the gears 5c and 5e, a lever 6b rotatably attached to the idle gear 6a and one end rotatably attached to a shaft 2b of the wheel 2, and a lever 6b. 6b is composed of a spring 6c that biases 6b in one direction (the direction in which gear 6a connects gears 5c and 5e), and holding plate 6d that holds the operating position of lever 6b.

Mortar placing device B constructed as described above
Then, when the lever 6b constituting the clutch means 6 is operated in the direction of the arrow a, the idle gear 6a is disengaged from the gears 5c and 5e, and the impeller 5a does not rotate even if the wheel 2 rotates. Therefore, even if the lever 6b is held by engaging the lever 6b in a groove (not shown) formed in the holding plate 6d in the above-mentioned operating state, and the mortar is stored in the main body 1a of the hopper 1 to move the wheel 2 while grounding it, The mortar thus formed is not discharged from the discharge port 1b.

When the mortar placing device B is opposed to the desired joint groove M and the lever 6b is rotated in the direction of the arrow b, the idle gear 6a meshes with the gears 5c and 5e to rotate the wheel 2 and the impeller 5a. Communicate to. Therefore, when the mortar placing device B is moved in the above state, the two impellers 5a rotate without interfering with each other, and the mortar housed in the main body 1a is transferred in the direction of the discharge port 1b with this rotation. Then, it is discharged from the discharge port 1b and placed in the joint groove M.

As described above, by disposing two impellers 5a adjacent to each other inside the main body 1a,
It is possible to transfer the mortar stored in the discharge port 1b more smoothly to the discharge port 1b, and to make the amount discharged from the discharge port 1b more uniform.

By operating the clutch means 6, the wheels 2
By selectively transmitting the rotation of the blade to the impeller 5a,
It is possible to control the discharge and stoppage of the mortar.
Therefore, when the position where the mortar is housed in the main body 1a is separated from the position of the joint groove M where the mortar is to be placed, the gear 6a is disengaged, and then the wheel 2 is grounded to allow the mortar to be placed. Even if the apparatus B is moved, the mortar is not discharged. Therefore, it becomes possible to prevent the waste of the mortar and the pollution of the working environment.

In this embodiment, the handle 1c held by the worker is extended and the caster 7 is attached to the end. The casters 7 allow the mortar placing device B to be self-supporting, and the workability can be further improved.

[0038]

As described above in detail, in the mortar placing device according to the present invention, it is not necessary to maintain the forward bending posture during the work, and the operator grips and pushes the handle to make rolling contact of the wheels. Can be moved by. Therefore, the force required for the work is reduced and the work can be performed in a natural posture, and the workability can be improved.

Further, the surface of the mortar that has been cast at the same time that the mortar has been cast into the joint groove can be made flat by the mortar pressing member. Therefore, it is not necessary to further finish the mortar, the work can be simplified, and the cost can be reduced.

Further, the traveling guide means inserted in the joint groove can guide the moving direction of the mortar placing device in the direction along the joint groove. Therefore, the mortar is not discharged to a portion other than the joint groove, and it is possible to prevent waste of the mortar and to easily place the mortar.

Since the mortar is housed in the hopper and driven, the mortar can be driven at a stable speed without being affected by the discharge amount and capacity of the mortar pump, and the person who handles the hose is not required. Therefore, workability can be improved and cost can be reduced.

Further, by providing mortar discharging means for forcibly discharging the mortar with the rotation of the wheels and clutch means for connecting and disconnecting the power transmission to the mortar discharging means by the rotation of the wheels, the mortar is placed in the joint groove. In this case, a stable amount of mortar can be discharged and placed as the wheels rotate, and the mortar discharge can be stopped by blocking the wheel and mortar discharge means regardless of the rotation of the wheels. Can be done. For this reason, when moving from a joint groove that has been cast to a new joint groove, or when supplying mortar to the hopper, the stored mortar remains even if the wheels are moved to the ground. It has features such as not being discharged, waste of mortar and pollution of working environment can be prevented.

[Brief description of drawings]

FIG. 1 is a side sectional view of a mortar placing device according to a first embodiment.

FIG. 2 is a view taken along the line II-II in FIG.

FIG. 3 is a view taken along the line III-III in FIG.

FIG. 4 is a diagram illustrating an example of a joint groove.

FIG. 5 is a diagram illustrating a usage state.

FIG. 6 is a side view of a mortar placing device according to a second embodiment.

FIG. 7 is an enlarged view of a main part.

FIG. 8 is a diagram illustrating a conventional mortar placing operation for a joint groove.

[Explanation of symbols]

 A, B Mortar placing device P panel M Joint groove 1 Hopper 1a Main body 1b Discharge port 1c Handle 1d, 1e Surface 2 Wheel 3 Travel guide means 3a Contactor 3b Shaft 3c Sliding guide 3d Spring 4 Mortar pressing member 4b Long hole 5 Mortar discharging means 5a transfer member, impeller 5b transmission member 5c, 5e gear 6 clutch means 6a idle gear 6b lever 6c spring 6d holding plate 7 caster

Claims (4)

[Claims] 1. A mortar placing device for placing mortar in a joint groove, the hopper containing a mortar and provided at the bottom with an outlet for discharging the mortar, a wheel for moving the hopper, and a joint groove. A mortar placing device, which is inserted into the inside of the mortar and is provided with travel guide means for guiding the movement of the hopper. 2. The mortar placing device according to claim 1, further comprising a mortar pressing member which flattens the surface of the mortar placed in the joint groove at the rear of the discharge port. 3. The mortar placing device according to claim 1, further comprising a mortar discharging means for discharging the mortar contained in the hopper in the vicinity of the discharge port as the wheels rotate. 4. A clutch means for connecting and disconnecting power transmission to the mortar discharging means by rotation of a wheel.
The described mortar placing device.