JP3026952B2 - Erector device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an erector device capable of constructing a segment wall on an inner surface of an excavated tunnel and assembling a column in the middle of a tunnel opening cross section (cross section opening). Things.

[0002]

BACKGROUND OF THE INVENTION At the rear of a shield machine, an erector device is generally located for the purpose of building a wall (segment wall) as a support on the inner surface of the tunnel it excavated. The apparatus grips the segment pieces one by one by its tip end (grip portion) (in the case where it is simply hooked and attached, it is also called “grip”) and moves to each construction site on the inner surface of the tunnel. A segment wall is constructed by tightening bolts and nuts or the like between the segment pieces carried in place by the device. As an erector device, a well-known type in which a segment-shaped gripping portion is provided at the end of a gate-shaped frame, and the frame turns along the inner surface of the tunnel and also moves in the radial direction of the tunnel is well known. . The swivel or movement of the portal frame moves the grasped segment to the construction site.

However, when the cross-sectional shape of the tunnel is not a single circle (for example, there are cases where a plurality of circles are connected, an ellipse, a horseshoe, a rectangle, etc.), a so-called multi-joint type erector is used. Often done. The articulated erector is of a type in which a plurality of arm members are connected via a joint, and the arm members are angularly displaced around the joint. The articulated erector can easily reach the end (grip) by bending or stretching the joint, so even if the cross section of the tunnel is not a single circle, a segment wall can be constructed. To In addition, a tunnel having a shape other than a single circle has been actively researched and developed in recent years for its excavation technology because the efficiency of forming a double track portion and a station portion of a subway is improved.

When excavating a tunnel whose cross-sectional shape is not a single circle, not only a segment wall is constructed on the inner surface but also a post is sometimes assembled in the middle of the opening cross section. When the opening cross section of the tunnel is a horizontally long figure such as a shape in which a plurality of circles are connected to the left and right, it is preferable in terms of stability to set up a pillar as a support at a middle position on the left and right in the opening. This is because there are cases. Examples of constructing a segment wall and erecting a column inside a tunnel that is not a single circle are described in, for example, JP-A-7-76998, JP-A-7-34798, and JP-A-4-89199. .

[0005]

When a segment wall is constructed by an articulated erector on the inner surface of a tunnel that is not a single circle, the above-mentioned strut is installed from a position where the erector is carried in (generally immediately below the erector). The challenge is how to carry it. The articulated type erector is not advantageous for stably gripping a heavy object due to the large number of joints and the like, but the struts are nevertheless heavy. In particular, instead of temporary columns (which will be removed later) that are arranged closely to facilitate the construction, they will be stood up permanently after the completion of the construction. It is not unusual for the pillars provided (eg, at 5 m intervals) to be heavier than each of the segment pieces and weigh around 10 tons per strand. Therefore, in order for the articulated type erector to have a support, the joints and each arm member need to be considerably strong.

The erectors described in the above-mentioned Japanese Patent Application Laid-Open Nos. 7-76998 and 7-34798 are articulated types, but the erectors themselves not only have segment pieces but also columns. Holding and moving are also performed. Therefore, as described above, the joints and each arm member of the erector have considerable strength (rigidity).
It is presumed that this leads to a considerable increase in manufacturing cost as the size increases. In order for the erector to stably hold the column, it is good to have the center of the column (in the above two examples, the center of the column is gripped).
There are disadvantages to doing so. The middle surface of the pillar, which is often exposed to the platform of the subway station, is easily scratched. In addition, the end of the erector (grip) is used to prevent both ends from hitting the inner surface of the tunnel. It is necessary to move the inside of the tunnel considerably inside the tunnel, so the central effective diameter of the shield machine (the diameter of the space in the center where wiring, piping, conveyors, etc. are arranged) cannot be made large. This makes it difficult to arrange them.)

On the other hand, the erector device described in Japanese Utility Model Laid-Open Publication No. 4-89199 is provided with an erector dedicated to gripping and moving only a support column independently of an erector handling a normal segment piece. The erector dedicated to the column is provided separately from the erector for the segment piece, and the column can be handled by itself. In such a device, it is necessary to configure a set of rugged dedicated erectors that can grasp and move heavy props only by themselves as a separate independent machine from ordinary erectors. It is presumed that the cost increases.

An object of the present invention is to provide an erector device which has a simple structure as a whole and can smoothly construct a normal segment piece and erect a support column. .

[0009]

An erector device according to the first aspect of the present invention is a multi-joint type erector, the tip of which grips a segment piece and moves to each part of the inner surface of the tunnel to construct a segment wall. The present invention is characterized in that an auxiliary assembling machine which functions only for assembling the column and has a tip portion which grips and moves both ends of the column together with the articulated erector is provided. The articulated erector refers to an erector of a type in which an arm member or the like is flexibly connected by two or more joints. The fact that the auxiliary assembler grips both ends of the column together with the articulated erector means that the auxiliary assembler and the erector share the role of simultaneously gripping one of both ends of the column. I do. "Gripping" is a broad term indicating that the erector device has a segment or a support, and also includes simply supporting the erector device in a hanging state. It should be noted that a plurality of articulated erectors (or even auxiliary assembly machines) may be arranged depending on the cross-sectional shape of the tunnel or the like.

According to the erector device of the first aspect, when the segment wall is first constructed, the articulated erector moves to each construction site after grasping the segment piece at the tip end. Thereby, it is provided for the construction of the segment wall by an operator or an automatic machine. On the other hand, when erecting the support, the auxiliary assembling machine shares the articulated erector and holds both ends of the support, and moves to the construction site. Since both have both ends, the column is stably supported. In addition, the articulated erector does not need to extend the arm member to a portion near the center of the tunnel in connection with the end portion of the column, so that there is an advantage that the central effective diameter can be widened.

This erector device can simplify the entire configuration including the articulated erector and the auxiliary assembly machine for the following reasons.

A) The structure of the auxiliary assembly machine itself can be relatively simplified. The column is erected in the middle of the cross section of the opening of the tunnel, and the column can be easily moved to the middle. Therefore, a simple moving mechanism (for example, a joint portion) is required for the auxiliary assembling machine that moves only the column. ) Is sufficient.

B) The auxiliary assembling machine does not need to be strong enough to support the column by the auxiliary assembling machine alone. This is because the auxiliary assembling machine in this erector device does not have a heavy column by itself, but grasps and moves the column jointly with the erector (that is, sharing as described above).

C) The erector does not need to be strong enough to support the column alone. This is because the column is gripped and moved jointly with the auxiliary assembly machine as described above. Considering that it is not easy to increase the strength of the multi-joint type erector due to the large number of joints, this point has a great effect of avoiding an increase in the size and weight of the device.

According to a second aspect of the present invention, in the erector device, the articulated erector and the auxiliary assembling machine are mounted together on a rotating drum rotating in a plane perpendicular to the longitudinal direction of the tunnel in the shield machine. In the auxiliary assembly machine, a first moving means for reciprocating the tip in a tangential direction of the rotating circle of the rotating drum and a second moving means for reciprocating the tip in the longitudinal direction of the tunnel were included. -Characterized by the following.

The procedure in which the erector device handles the columns is as follows. First, the articulated erector and the auxiliary assembling machine rotate together with the turning drum in a plane perpendicular to the longitudinal direction of the tunnel, so that the position and posture in the (cross section) of the tunnel are made appropriate. In other words, each tip is brought to a position where a post to be gripped is supplied or a position where the gripped post is incorporated. Then, the articulated erector moves the distal end to the above-described position by appropriately bending and extending the plurality of joints. Since the multi-joint type erector has many joints, it can freely move its tip in a plane to reach the position. On the other hand, the auxiliary assembly machine
The distal end is brought to the above position by the first and second moving means. By making the first mode of transportation work,
The tip of the auxiliary assembling machine can be reciprocated inward and outward of the tunnel, and by operating the second moving means, the position of the tip of the auxiliary assembling machine in the longitudinal direction of the tunnel can be adjusted to the position of the tip of the articulated erector. It can be adjusted to the same position. By aligning the positions of the two ends in the longitudinal direction of the tunnel in this way, both ends of the column can be securely gripped, and the column can be set upright in the tunnel.

The auxiliary assembling machine in the apparatus according to the second aspect has a simple structure. This is because it is sufficient to combine a total of two reciprocating moving means (that is, first and second moving means) for moving the distal end portion linearly so that the respective moving directions are orthogonal to each other as described above. The structure is much simpler than a multi-joint type erector or the like in which a plurality of arm members are connected by a plurality of joints and a driving means (such as a hydraulic cylinder) is arranged between the arm members. As long as the configuration is simple, it is easy to make this auxiliary assembly machine of high strength and high rigidity.

According to the third aspect of the present invention, there is provided the erector device, wherein the first moving means (that is, the means for reciprocating the tip portion in the tangential direction of the rotating circle of the rotating drum) does not rotate in the tangential direction. And a reciprocating drive source that applies a force for the movement to the distal end portion to guide the distal end portion so as to move only in the distal end portion.

In the auxiliary assembling machine of this device, when the reciprocating drive source exerts a force on the tip, the tip is guided along the linear guide so that the rotating circle of the rotating drum is rotated. Move tangentially. At this time, since the tip does not rotate around the tangent line, the tip does not rotate even when a load including a moment acts on the pillar held at the tip. That the first moving means has such a function, and that the second moving means moves the tip portion in the longitudinal direction of the tunnel as described above,
Further, the auxiliary assembling machine can appropriately reach the leading end to the supply position or the installation position of the column based on the fact that the whole is rotationally moved together with the turning drum until the appropriate position and posture are obtained. In other words, this auxiliary assembling machine requires the first moving means to grasp and move the column, although it is a simple one combining a linear guide and a reciprocating drive source (for example, a hydraulic cylinder). Functions can be exhibited.

According to a fourth aspect of the present invention, there is provided the erector device as a multi-joint type erector, wherein a plurality of arm members sandwiching a certain joint are extended in the longitudinal direction of each arm member through the outside of the joint. In addition to being connected by a rope, a length and tension changing means provided on each rope is arranged. In addition, it is good to use what was excellent in tensile strength, such as a thing containing a carbon fiber other than a high-tensile wire, as a rope.

The articulated erector in the device according to the fourth aspect of the present invention is characterized in that the length of the rope is shortened by applying strong tension to any one of the plurality of ropes passed through the outside of a certain joint by the changing means. Then, an angular displacement (bending) occurs between the arm members and the like around the joint. The angular displacement at that time occurs in the direction in which the angle between the two members becomes smaller on the side of the rope to be shortened as described above. Just like a person's arm bends due to muscle contraction. On the other hand, if a strong tension is applied to the rope passing through the joint on the opposite side to shorten the length, the angle will be reduced on the side of the rope opposite to the above. An angular displacement occurs between the arm members.

In this multi-joint type erector, the arm members can be bent in both forward and reverse directions around the joint, and there is no need to arrange a fluid pressure cylinder or the like between the arm members. Since the bending is not hindered by the cylinder or the like, the bending range can be widened. Therefore, this erector can move the tip for gripping the segment to an extremely wide part in the tunnel. Even when only one of them is arranged on the turning drum, the tunnel has a cross-sectional shape that is not a single circle. In many cases, a segment wall can be constructed on the entire inner surface of the vehicle. In other words, since the number of articulated erectors can be reduced irrespective of the cross-sectional shape of the tunnel, the configuration of the erector device according to claim 4 can be further simplified.

[0023]

1 to 4 show an embodiment of the present invention. FIG. 1 is a view of the rear part of the shield machine 1 as viewed from the rear, and FIG. 2 is a view taken along the line II-II in FIG. FIG. 3A is a view taken in the direction of arrows III-III in FIG.
(B) is a view on arrow bb in (a), and both show a state in which the articulated erector 20 grips the segment piece So. FIGS. 4A to 4D are explanatory diagrams of the operation when the erector device 10 grips and moves the support P.

As shown in FIG. 1, the shield machine 1 has a so-called double circle cross section in which two circular portions of a great circle and a small circle are partly overlapped as a subway station. Excavating a tunnel having The outer cylinder of the shield machine 1 includes a large-circle outer cylinder part 2A and a small-circle outer cylinder part 2B, and a plurality of shield jacks 3 are arranged inside each part. Each of the shield jacks 3 is extended rearward, and pushing forward the end face of the segment wall S constructed rearward as shown in FIG. 2 and FIG. Since the shield machine 1 is provided with a cutter (not shown) on the front surface, the cutter having the same cross-sectional shape as the outer shape of FIG. 1 is excavated by driving the cutter while obtaining the propulsive force as described above. .

An erector device 10 is provided at the rear of the shield machine 1 for the purpose of constructing a segment wall S or the like on the inner surface of the tunnel. Apparatus 10 is 1 as shown in FIG.
One auxiliary assembly machine 30 is provided side by side with the base articulated erector 20, and both are arranged with a central space x passing through wiring, piping, and the like.

The articulated erector 20 of the erector device 10 has a plurality of joints 21 and 2 as shown in FIG.
The plurality of arm members 22 and 24 and the distal end portion 26 are connected at 3.25, and hydraulic cylinders 27,28.
29. Then, the base 20a of the erector 20 including the joint 21 is connected to the shield machine 1
It is mounted on a rotatable revolving drum 11 provided at the rear of the device. Rotation of revolving drum 11 and joints 21 ・ 23 ・ 2
5, the tip 26 can be freely moved in the tunnel, and as shown in FIG. 3, the untreated segment piece So is gripped by the tip 26 and transported to each part in the tunnel. . An operator or an automatic machine or the like fastens the segment piece So carried to the appropriate place to the already-constructed segment wall S, thereby promoting the construction of the segment wall S. The tip 2
6 is coupled to a bracket (not shown) on the segment piece So via a pin (the same), and the segment piece So is pressed against the inner surface of the segment piece So by pressing the anti-sway member (the same). It is configured to hold one by one.

On the other hand, an auxiliary assembling machine 30 arranged side by side with the erector 20 as shown in FIG. 1 has a tip 37 or the like provided below the first moving means 31. It is configured to hold and move in cooperation with the user. Specifically, as shown in FIGS. 2 (a) and 2 (b), the moving rod 3 is placed inside the square tube 32b attached to the base 30a.
The distal end 37 is attached below the rod 32a by inserting 2a, and the hydraulic cylinder 33 is connected between the distal end 37 and the square tube 32b. A linear guide 3 in which the rod 32a and the square tube 32b guide the movement of the distal end portion 37.
2, the cylinder 33 functions as a reciprocating drive source for moving the distal end portion 37, and these constitute the first moving means 31. The distal end 37 has a guide 36 a with respect to the fixed claw 35.
In addition to the gripping mechanism that moves the movable claw 36 by the hydraulic cylinder 36b along the axis, the entirety of the gripping mechanism is assembled with the second moving means 34 that moves the hydraulic cylinder 34b as a driving source and the guide 34a for guiding. I have. The gripping mechanism is one end of the column P (the upper end after construction)
Pb is sandwiched between claws 35 and 36 to be gripped. The auxiliary assembling machine 30 configured as described above has the first
The base 30a is mounted on the drum 11 such that the moving direction by the moving means 31 is along the tangential direction of the rotating circle of the rotating drum 11 and the moving direction by the second moving means 34 is in the longitudinal direction of the tunnel. However, the position of the auxiliary assembling machine 30 on the drum 11 is, as shown in FIG. 1, arranged so as to sandwich the inner space x substantially in parallel with the general length direction of the articulated erector 20, and within the movable range. At a position corresponding to the length of the column P between the distal end portion 26 of the erector 20 and the distal end portion 37 of the auxiliary assembler 30. While the erector 20 is handling the segment piece So as described above (see FIG. 3), the auxiliary assembling machine 30 is kept in a retracted state in which the distal end portion 37 is retracted.

The pillar P is erected near the center of the tunnel as shown by the imaginary line in FIG. 1, that is, at a position corresponding to the joint of two circular portions in the cross section of the tunnel. It will be a permanent support at this oblong opening that will be a subway station. While the weight of each segment piece So is about several tons at the maximum, one pillar P
Since it is around 0 tons, unlike the segment piece So, it is impossible to grasp and carry only the articulated erector 20. Therefore, in the erector device 10, the auxiliary assembling machine 30 having a simple structure and easily securing rigidity as described above is used together with the multi-joint type erector 20, in order to smoothly handle the column P.

The support P is carried into the lower part of the erector device 10 in the same manner as the segment piece So described above. That is, the column P is carried into the lower part in the outer cylinder portion 2A of the great circle of the shield machine 1 as shown in FIG. Since the articulated erector 20 and the auxiliary assembling machine 30 are arranged as described above side by side at a position sandwiching the space x inside the rotating drum 11, one end Pa of the column P thus carried is connected to the erector. 20 and the auxiliary assembly machine 30 can simultaneously grip the other end Pb. However, since the tip portion 26 of the erector 20 grips the segment piece So via the pin as described above, the end portion Pa of the support P is also passed through the pin so that the end portion Pa of the support P can be gripped via the pin. The bracket plate Pc is attached to the end Pa of the column P in advance by temporary welding. Erector 20 and auxiliary assembly machine 3
The strut P is thus grasped at 0 and moved to the vicinity of the center of the tunnel, which is the standing position. At this time, since the rigidity of the auxiliary assembling machine 30 is high, more than half of the weight of the column P is supported by the auxiliary assembling machine 30. The procedure in which the erector 20 and the auxiliary assembling machine 30 grip and move the column P is as follows. That is, as shown in FIG. 1 (solid line), when the strut P is carried in just below the erector 20, each end Pa (bracket plate Pc) of the strut P is transferred to the erector 20 and the auxiliary assembler 30. Pb is respectively gripped. While the column P is being carried in, the attitude (rotation angle) of the rotating drum 11 is set as shown in FIG.
6. 37 is retracted upward. At the time when the loading is completed, in the erector 20, the joints 21, 23, 25 are bent and stretched, and the first moving means 31 of the auxiliary assembling machine 30 is operated to lower both end portions 26, 37. It reaches the position of the ends Pa and Pb of the support P. While the erector 20 holds the end Pa through a pin,
The auxiliary assembly machine 30 holds the end Pb between the claws 35 and 36 shown in FIG. When the loaded column P is slanted and the position of the end Pb in the longitudinal direction of the tunnel is different from the position of the other end Pa, the second moving means 34 (FIG. 2) in the auxiliary assembling machine 30. 35 nails
36 together in the longitudinal direction of the tunnel to ensure grip.

As described above, both ends Pa and Pb of the pillar P
Is gripped, the joints 21 and 23 of the erector 20
4 by bending and extending the tip 25 and by causing the first moving means 31 of the auxiliary assembling machine 30 to function to raise both tip portions 26 and 37.
The support P is pulled up as shown in FIG. However, the lifting height is set so that the column P, the erector 20, and the like do not enter the space x in the central portion of the shield machine 1.

With the column P pulled up as described above, the turning drum 11 is rotated by about 90 °, and the column P is made vertical at a position close to the normal standing position as shown in FIG. 4B.

By bending each joint of the erector 20 and making the first moving means 31 of the auxiliary assembling machine 30 function, each tip 26 and 37 is extended rightward in the drawing.
The support P is moved to a normal standing position as shown in FIG.
At this time, if necessary, the inclination of the column P is corrected by moving the gripping mechanism of the distal end portion 37 in the longitudinal direction of the tunnel by the second moving means 34 in the auxiliary assembling machine 30. In the auxiliary assembly machine 30, the moving rod 32 shown in FIG.
Since a and the square cylinder 32b prevent the tip 37 from being rotationally displaced based on the shapes thereof, the inclination of the column P can be effectively corrected.

When the support column P can be set in a proper position, both ends P can be used by a machine or manually.
a · Pb is connected to the segment wall S, and the column P is fixed. When fixing is completed, as shown in FIG.
Then, the tip portions 26 and 37 of the auxiliary assembly machine 30 are separated from the support P. At this time, the gripping pin is removed from the erector 20, and the gap between the claws 35 and 36 (FIG. 2) is extended from the auxiliary assembler 30, and then the tips 26 and 37 are moved to the left in the drawing. .

FIGS. 5 to 7 each show another embodiment of the present invention. First, FIG. 5 shows an erector device 40 provided in a shield excavator 1 ′ as an auxiliary assembling machine 30 having the same structure as described above (see FIG. 1 and the like) and an articulated erector having a structure different from that described above. This is an example in which the configuration is made by combining 50 and 50.

That is, the articulated erector 50 in the erector device 40 of FIG.
There is no limitation on the bending direction at 55.
Structurally, spherical joints are used for the joints 51, 53, and 55, and the base 50a that sandwiches the joints is used.
(Four wires for each joint) (high-tension wire rope) 57 extending between the arm members 52 and 54 and the distal end portion 56 in the longitudinal direction of each arm member, etc., passing outside each joint. Connected by Each rope 57 has
As a means for changing the length and tension, a hydraulic cylinder 58 is used.
And the base 50a and the arm members 52 and 54
Are placed within.

The multi-joint type erector 50 applies a strong tension to any one of a plurality of ropes 57 passed in a set of four outside the respective joints 51, 53, 55 by the hydraulic cylinder 58. When the length is shortened, the arm members 52 and 54 and the tip 56 around the respective joints are reduced.
Make angular displacement (bending) between each other. The angular displacement at that time occurs in the direction in which the angle between the two arm members becomes smaller on the side of the rope to be shortened as described above, and the bending direction is not limited. For example, when a strong tension is applied to the rope 57 passing through the joints on the opposite side to shorten the length, the rope 57 is turned in the opposite direction (for example, in the direction of the reverse joint). The arm member and the like are angularly displaced. Since a cylinder or the like is not connected to the outside of the arm members 52 and 54, the bending range can be wide in any direction. Also, the joints 51.5
Since the spherical joints 3 and 55 are spherical joints, depending on the selection of the rope 57 to be shortened, not only in one cross section of the tunnel (within the plane of the paper of FIG. 5) but also in the longitudinal direction of the tunnel (perpendicular to the paper of FIG. 5). Direction) can also be moved.

In the case of the articulated erector 20 shown in FIGS. 1 and 3, etc., the bending direction is limited to one direction (that is,
It cannot be a so-called reverse joint state. Further, since the arm member and the like cannot be extended into the central space x), it is difficult to move the segment piece So to the entire inner surface of the tunnel with only one erector 20 depending on the shape of the tunnel cross-section opening and the like. is there. In this case, a plurality of erectors 20 must be arranged at different positions on the rotating drum 11. However, in the articulated erector 50 shown in FIG. 5, since the distal end portion 56 can be moved within a wide range as described above without limitation in the bending direction of the arm members 52 and 54, the number of bases to be arranged is small. Help me. That is, in most cases, the segment piece So can be moved to the entire site with only one erector 50 regardless of the shape of the tunnel opening cross section.

In the erector device 40 shown in FIG. 5, when handling a column P which is erected in the middle of the cross section of the opening of the tunnel, the articulated erector 50 and the auxiliary assembly machine 30 are both used. . That is,
Each end of the column P is gripped by the distal end 56 of the erector 50 and the distal end 37 of the auxiliary assembly machine 30, and the column P is moved to the upright position by the same procedure as in FIGS.

In the multi-joint type erector 50 of the erector device 40, spherical joints are used for the joints 51, 53 and 55, but a universal joint (universal joint) may be used instead of the joint, or a cylindrical joint may be used. It is also possible to use a pin joint. In the case of a pin joint, the tip 5
6 is limited to one plane, but it is also possible to bend the arm member or the like into a so-called reverse articulation, so that the moving range of the distal end portion 56 is also wide, and an action similar to that of FIG. It is.

FIG. 6 shows an example in which a type different from the above-mentioned type is used as the auxiliary assembly machine 60 of the erector device. That is, as the linear guide 62 that moves the tip 67 without rotating it, two moving rods 62a having a circular cross section are inserted into the guide frame 62b in parallel, and reciprocated between the tip 67 and the guide frame 62b. A hydraulic cylinder 63 is connected as a dynamic drive source. The first moving means 61 is constituted by these, and the moving direction is set along the tangential direction of the rotation circle of the turning drum 11. In addition to the gripping mechanism that moves the movable claw 66 with respect to the fixed claw 65 along the guide 66a with respect to the fixed claw 65, the entirety of the gripping mechanism is connected to the hydraulic cylinder 64b, which is a driving source, and the guide for guiding. A second moving means 64 that moves in the longitudinal direction of the tunnel with the guide 64a is also assembled. Also in this example, the gripping mechanism is one end Pb of the support P.
Can be held between the claws 65 and 66, and the column P is gripped and moved together with the articulated erector (not shown).

FIG. 7 shows an example in which another type of auxiliary assembly machine 70 of the erector device is used. In this example, a linear guide 72b is engaged with a moving rod 72a as a linear guide 72 of a first moving means 71 for moving the tip 77 without rotating, and a hydraulic cylinder as a reciprocating drive source is attached to the tip 77. 73 are connected. The configuration of the gripping mechanism and the second moving unit, and the moving direction of each moving unit are the same as those in the auxiliary assembly machine 60 in FIG.

[0042]

The erector device according to claim 1 is
Although the device handles the segments and the heavier struts, the overall configuration can be simplified. The articulated erector, which has many joints and has a complicated structure, is not strengthened enough to hold a heavy strut alone.
Also, there is no need to arrange a dedicated erector that grips and moves only the support column independently of the articulated erector that handles the segment pieces. Another reason is that the auxiliary assembling machine can move the column by a relatively simple mechanism. In relation to gripping both ends of the column, the gripping state must be stable, the center of the column should not be damaged near the center (the part exposed to the premises at subway stations, etc.), and the central effective diameter should be large. It has the advantages of being able to take it.

In the erector device according to the second aspect,
The structure of the auxiliary assembling machine can be made simple such that two reciprocating means for linearly moving the distal end portion are combined so that the respective moving directions are orthogonal as described above. As long as the configuration is simple, it is easy to make the auxiliary assembly machine high in strength and high in rigidity.

According to the erector device of the third aspect, the tip can properly reach the supply position or the installation position of the column without rotating the tip during movement.
Therefore, this auxiliary assembling machine can exhibit functions necessary for gripping and moving the column, even though the first moving means has a simple configuration.

According to the erector device of the fourth aspect, since the movable range of the tip end of the articulated erector is wide, the number of articulated erectors is small irrespective of the cross-sectional shape of the tunnel. Therefore, the configuration of the erector device can be further simplified.

[Brief description of the drawings]

FIG. 1 is a view showing one embodiment of the present invention, and is a view of a rear part of a shield machine 1 including an erector device 10 viewed from the rear.

FIG. 2A is a side view of the auxiliary assembling machine 30 and the like as viewed in the direction of arrows II-II in FIG. FIG. 2 (b) shows the same.
It is bb sectional drawing in (a).

FIG. 3A is a view taken in the direction of arrows III-III in FIG.
(b) is a view on arrow bb in (a), and both show a state where the articulated erector 20 grips the segment piece So.

FIGS. 4 (a) to 4 (d) are operation explanatory diagrams when the erector device 10 grips and moves the support P. FIG.

FIG. 5 is a view showing another embodiment of the present invention, which is a view of the rear part of the shield machine 1 ′ including the erector device 40 viewed from the rear.

FIG. 6 is a view showing an auxiliary assembling machine 60 of the erector device to show still another embodiment of the present invention. That is, FIGS. 6A, 6B, and 6C are a rear view, a plan view, and a side view of the auxiliary assembly machine 60, respectively.

FIG. 7 is a view showing an auxiliary assembling machine 70 of the erector device to show still another embodiment of the present invention. That is, FIGS. 7A, 7B, and 7C are a rear view, a plan view, and a side view of the auxiliary assembling machine 70, respectively.

[Explanation of symbols]

 1.1 'Shield excavator 10.40 Erector device 20.50 Articulated erector 26.56 Tip 30.60.70 Auxiliary assembly machine 31.61.71 First moving means 37.67.77 Tip So segment One piece P prop

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-U 4-89199 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) E21D 11/40

Claims (4)

(57) [Claims] 1. An erector device for constructing a segment wall on the inner surface of a tunnel and assembling a column in the middle of an opening cross section of the tunnel, wherein a tip portion holds a segment piece for constructing the segment wall. A multi-joint type erector that moves to each part of the inner surface of the tunnel and an auxiliary assembly machine that functions only for assembling the strut and the tip part grips and moves both ends of the strut together with the articulated type erector An erector device characterized in that: 2. The articulated erector and the auxiliary assembly machine are both mounted on a rotating drum rotating in a plane perpendicular to the longitudinal direction of the tunnel in the shield machine,
The auxiliary assembler includes a first moving means for reciprocating the tip in a tangential direction of the rotating circle of the rotating drum, and a second moving means for reciprocating the tip in the longitudinal direction of the tunnel. The erector device according to claim 1, wherein 3. A linear guide for guiding the distal end so that the first moving means moves only in the tangential direction without rotating around the tangent, and a reciprocation for applying a force for the movement to the distal end. 3. The erector device according to claim 2, wherein the erector device is combined with a dynamic drive source. 4. An articulated erector, wherein two arm members sandwiching a joint are connected by a plurality of ropes extending in the longitudinal direction of each arm member outside the joint. The erector device according to any one of claims 1 to 3, wherein a device provided with means for changing length and tension of each rope is provided.