JPS59192522A - Device for molding guide groove of connecting bolt for reinforcing type core in formwork for segment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention is used for shield construction method] Concrete segment 1
This invention relates to a device for forming a connecting bolt guide groove for a reinforcing core in a segment mold for obtaining a reinforcing segment 1 in .

Recently, in cases such as the subway shield method 1, the t
I18- ``(;) Placement is becoming increasingly deep underground ((for example,
0m, etc.). This 1. = Me, this L: 4
+ For? For the structure of the concrete segment, it was necessary to use the conventionally used segment - 104 n stain. , A simple reinforcing knife that can perform the phase 1 work of IZ Gunung 1 by breaking the conventional Go method 1<r. , something is possible.

However, in order to increase the number of reinforcing bars without damaging the external shape of the existing segment (J), it is only necessary to narrow the gap in the core part a little and increase the surface area in that part. However,
The problem here is that the length of the connecting pole 1~ that connects the segment and the 12-gum member 1- is predetermined, so a guide groove is provided on the edge of the core with a thick wall so that the connecting wheel bolt can be easily inserted. The need to configure it came at the eleventh hour.

1- In view of the circumstances described above, the present invention is to form a connecting bolt guide groove in the core part of the formwork assembly equipment for segments 1 to 7. Forming a connecting bolt guide groove in a reinforced type core incorporating a par box. It provides equipment.

That is, the present invention provides a formwork framework device for a concrete segment consisting of a bottom plate, front and rear side plates, left and right end plates, and a core placed in the center of the bottom plate, which are placed on a mold table. A tapered box which serves as a frame body and protrudes and fits into a guide groove hole drilled in the side surface of the core can be automatically retracted into the core frame using a feeding means installed in the core frame. The tapered box protruding from the core is used as a connecting bolt guide groove to facilitate insertion of the connecting bolt.

Hereinafter, the present invention will be explained with reference to drawings of embodiments.

FIGS. 1 to 4 show an embodiment in which the tapered box feeding means includes a vibrating lever mechanism whose intermediate portion is pivotally connected to the die side.

Reference numeral 1 denotes a bottom plate 3 with a fixed arc-shaped cross section arranged on the upper part of the mold table 2, and front and rear side plates 4 that frame the bottom plate 3 in all directions. /I
There are 71 stones protruding from the end plate 5.5 and the center of the bottom plate 3. 〃Individual core 6J: Rinaru known type pH stage y
There is a gate. This 1 easy inclusion, core 6 configuration G, 1, formwork fitting F? 1.
Shield circumferential direction 31 - orthogonal core rl in front and back directions
,, Q is compared to conventional core i], Q' is
The conventional core length is approximately 54 (l m m 7-', which has a width of 4 (l Om m, 2 melons, 31 doors) and (), a small frame body of 6', and a 1-inch diameter. (See Figure 5). 7 is middle child 6
A circular 7-par box fitting hole bored in the front and rear sides 6a of the truncated circle 11 that protrudes and fits into the IN fitting hole 7.
A 7-par box 8 for a connecting bolt guide groove is positioned inside the core frame 6h. The base end of this taper box 8 is connected to a feeding hand 12, and a hydraulic cylinder 11 is attached to the lower end, and a vibrating lever 10 with a horizontal support shaft 9 attached to the upper part of the mold table 2 is attached to the center part. Attached to the upper end, in this case, the lever 10 is two pieces of 771.
It consists of Fl-10, and at the upper end there is a 1-note stand outside 1.
08 and I-par box 8 has. The tapered box 8 and the feeding means 12 for the core 6 form a connecting bolt guide groove forming device 13.

Now, when using this connecting bolt guide groove forming device 13,
First, in order to obtain concrete segments in the formwork assembly device 1, the side plates 4, 4, and end plates 5, 5 are framed with respect to the bottom plate 3 using known means, and the reinforcing bar cage Δ is fitted and set into the formwork 1a. do. This reinforcing bar cage A (see Fig. 5) is reinforced by increasing the number of reinforcing bars by the narrowed intermediate core 6 because the core 6 protruding into the formwork 1a is already a small "tJ frame body 6'". Furthermore, when inserting this reinforcing bar cage Δ, the tapered box 8 is placed in a position where it is retreated into the core 6.

Next, the cylinder 11 at the lower end of the lever rod 10 is actuated, and the lower end of the lever rod 10 is pushed by the cylinder rod 11a being fed out, and the lever rod 1° is rotated around the support shaft 9 in the center and the upper end is the core. The lever 1 is turned sideways towards the side 6a of 6.
A tapered box 8 protruding from the side surface 6a is inserted into the fitting hole 7 with a gap 5-11'+i, and the main part of the tapered box 8 is the core 6. stand out. in this case,
Of course, the opening surface of the fitting hole 7 is the same as the taper I of the tapered box 8.
Attach λ·1 to n slope a.

After that, the formwork 1.3 is filled with l\-1 concrete using known means, and after the horn trees 1 to IY/noment 14 are formed, the four side plates 4. /I,
Remove the end plates 5, 5, move the cylinder 11 in the opposite direction, retract the cylinder 1a, and tilt the upper end of the rod 10 inward, and the 10 end of the rod 11 is removed. The tapered box 8 held in the box 1-1 is automatically pulled out from the fitting hole 7, and
The location where the C Dever box 8 was currently located is configured as the connecting port 1 to the river guide groove 16. In this case, fF
- The bar-shaped inner kiln groove 16 has a large slope on the inner circumferential side so that it can be inserted more easily than the narrow core gap.

Thus formed: ] Ninori t-t segment 17! In I, the core 611] is narrow and this thick part 14a6
First, since the number of reinforcing bars Aa is increased compared to the conventional segment, it becomes a reinforced segment.

Figure 6 c51.7 - This is an embodiment of a mechanism for moving the par box feeding means in parallel.

That is, the taper boxes 8.8, which fit symmetrically into the fitting holes 7, 7 on both sides of the core 6, are screwed onto the tips of the threaded shafts 17 (horizontal racks with left and right threads cut on opposite sides). A worm gear ψ-20, which is rotated by a mortar 19 provided below, is engaged with the A-arm 18 arranged in the center of the J-threaded shaft 17. It serves as a feeding means 12. In this case, the X-line screw @17 rotates in conjunction with the rotating gear A-mgya 20 due to the drive of the motor 19, and accordingly, both tapered boxes 8.8 screwed onto the feed screw shaft 17 are released. (For reversing, all you have to do is turn one motor in reverse.)

Furthermore, as this feeding means 12, the left and right tapered boxes 8.8 can also be moved back in parallel using a link system having a child sacroparallel movement mechanism.

As mentioned above, the reinforcing type core connecting bolt guide groove forming 7 (J, opening 1.
1 set of J 7; tapered box 4 for the matching hole, feeding means with one box inside the core '5 b-) T automatic (mechanical) (after ejecting) '＜ ``' By making the IM, the reinforcing segment is placed in the core. It is easy to form the hem.Moreover, this tapered box has a 00 yen hook-shaped box structure, so it is minimal when handling the cow after cutting. It is only necessary to apply force to (1) (-), and the feeding means will inevitably be downsized and a tapered box with a small ri frame will be created.
It will be easier for those who are 7 years old. In addition, since this series 174 poles [-the guide groove forming device is configured to fit into the inside of the core, which is a fixed protrusion after all], it interferes with the original work of the formwork of the side plates and end plates that are connected to the 5F movement. It is a terrible thing to invite. In addition, since the structure 11 is simplified, it is possible to improve the core portion of the conventional formwork and to insert it in parallel.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a front view showing the entire formwork assembly device, Fig. 2 is a partially cutaway side view of the same essential parts, and Fig. 3 A and B are connection bolt guides. FIG. 4 is a front view and side view of the groove forming device section, FIG. 4 is a side view of the same operating state, FIG. 5 is an explanatory view of the reinforced segment, and FIG. 6 is a side view showing another embodiment. 1... Formwork assembly device, 2... Form stand, 3... Bottom plate,
4... Side plate, 5... End plate, 6... Core, 7...
Fitting hole for guide groove, 8... Tapered box for connecting bolt guide groove, 12... Feeding means. Patent applicant: Ii*Ie Co., Ltd.
Human tail crotch row separation
Jodo Shigeji
Yunosuke Araki 9- Figure 3 (A) Figure 3 (B)

Claims (1)

[Claims] 1. In a formwork assembling device for concrete ceramic 1, which consists of acid roots, side plates and end plates framed on a form table 1-, and cores arranged in the frame, the middle is made into a small width body, and The tapered box of the animal housing that protrudes into the guide groove hole drilled on the side of the core can be freely retracted into the core frame by a feeding means installed in the core frame, and the tapered box positions protruding from the core are connected. Pol 1 - Segment mold (4° angle) connecting bolt guide groove forming device for a reinforced core with a special feature of forming the guide groove.