JPH0447341Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an easy-to-use lintel jack that can easily erect a lintel over the left and right pillars erected in a predetermined manner.

[Conventional technology]

The jack for the lintel has a left support with a screw protruding from the contact plate, a jack that is screwed onto this left support,
It consists of a joint pipe that is screwed into the upper cylinder of the jack, and a right support body that has an abutment plate attached to the connecting pipe that is connected to the joint pipe.

Hang the lintel jack horizontally between the left and right pillars, turn the handle attached to the jack,
With the jack operation, the left and right pillars will be pushed apart and a lintel will be attached to the top.

At this time, if the jack is placed in the center, the handle will be located in the center as well, making it easier to operate the jack.

However, the jack and the screw require a little play, so if the jack is placed in the center, this play will also be located closer to the center, and if the pillar is pushed out in this state, the entire body will bend into a dog shape, and this There is a drawback that the closer the bent part is located to the center, the weaker the lintel jack becomes.

[The problem that the idea attempts to solve]

We solved this problem by placing the jack at the end so that it does not bend in a dog-like shape, and by placing the handle in the center where it is easy to operate, it prevents the jack from bending in a dog-like shape and makes it easier to operate the handle. be.

[Means to solve the problem]

The present invention is intended to solve these drawbacks, and its structure will be detailed as follows with reference to the accompanying drawings.

A jack A with a screw rod 2 protruding from the contact plate 1, and a rotating pipe B that is screwed into the screw rod 2 of this jack A.
Then, a plurality of joint pipes are successively jointed and connected to this rotary pipe B so that they can rotate together with the rotary pipe B, and a connecting cylinder 5 that can be connected to the joint pipe C at the joint end is attached. It consists of a support D protruding from the connecting plate 6, and a jack A, a rotary pipe B, a joint pipe C, and a support D are connected to a rod-shaped body, and the end of the rotary pipe B is located near the center. A rotary handle 3 is provided protrudingly in the provided mounting hole 4a or the mounting hole 4 provided in the joint pipe C, and the rotary handle 3 is positioned near the center of this rod-shaped body, and the left and right contact plates 1, 6 are This relates to a jack for a lintel, which is characterized by pushing out the pillars 7 for constructing the lintel.

[Effect]

Jacket A, rotating pipe B, and joint pipe C
and the support body D are connected to the rod-shaped body, and the rotary pipe B
Alternatively, if the rotary handle 3 is attached to the joint pipe C, and the contact plates 1 and 6 are brought into contact with the columns 7 and 7 and the rotary handle 3 is rotated, the distance between the columns 7 and 7 is adjusted by the rotation of the rotary pipe B. is pushed out a little.

〔Example〕

The jack A in the drawing is a screw bolt 2 mounted on a contact plate 1 having a diameter approximately equal to the width of the column 8 on which the synthetic resin cap 8 is fitted.
The figure shows the case where a protrusion is installed.

The rotating pipe B in the drawing shows a case in which a threaded portion 9 that is screwed into the threaded rod 2 is formed at one end, and a pin hole 10 and a mounting hole 4a for the rotating handle 3 are bored at the other end.
A case is shown in which the rotation handle 3 is also attached to this attachment hole 4a.

The connecting pipe C in the drawing shows two types of cases, and the short connecting pipe C1 has a small diameter insertion tube 11 inserted into the rotary pipe B fitted and fixed at one end with a fixing screw 12, and this small diameter insertion tube A spring receiver 14 is installed in the horizontal direction within the spring receiver 11 while being clamped by a holding piece 13, and the spring receiver 14 is protruded and recessed by an anti-squeezing strip built into the spring receiver 14 to fit into the pin hole 10 of the rotating pipe B. A case is shown in which a pin 16 is provided and a pin hole 10a is bored at the other end.

The long joint pipe C2 has the same structure as the short joint pipe C1 (small-diameter insertion tube 11a, fixing screw 12a, pin 16a, pin hole 10b, anti-shrinkage strips not shown), and is attached to one end. A case where hole 4 is drilled is shown.

The support D in the drawing connects the base end of the connecting tube 5 to the abutting plate 6.
A pin 18 protruding from the mounting rod 17 is slidably provided in a slide long window 19 bored in the connecting cylinder 5, and the tip of the connecting cylinder 5 A case is shown in which an anti-squeezing strip 21 is provided between the bolt 20 which is penetrated and fixed on the side and the tip of the mounting rod 17, and the right support D is provided in a compressed state.

Reference numeral 22 in the figure represents a bearing, and even if the entire bearing rotates due to the jacking action, the abutting plate 6, which is in pressure contact with the column 7, does not rotate.

In addition, pin holes 1 are provided at appropriate intervals in the connecting tube 5.
It is more convenient to make several pin holes 10c and 10b of the connecting pipe C fixed with a stopper rod 23 so that the length of the product can be adjusted.

Reference numeral 24 in the figure is a cap.

[Effect of idea]

As mentioned above, the present invention is a lintel jack consisting of a jack, a rotary pipe, a joint pipe, and a support. The jack, rotary pipe, joint pipe, and support are connected to a rod-shaped body, and as shown in Fig. 2, the contact plate is brought into contact with the left and right pillars, and the product is set between the left and right pillars. Attach the rotating handle to the rotating pipe and rotate the rotating handle in the direction in which the jack extends, and the left and right pillars will be pushed outward, and the lintel will be placed in the specified position between the pushed and spread pillars. If the lintel is erected and the rotating handle is returned, the lintel will be securely clamped in place.

At this time, the jack is located at the end that comes into contact with the pillar, and the loose part of the jack is located at the end of the bar that is the hardest to bend, so it is difficult to place the jack when the conventional jack is placed closer to the center. This means that the pillars can be pushed out with a stronger force without bending into a wedge shape.

Moreover, the rotating handle is not attached to the jack located at this end, but is attached to the rotating pipe or joint pipe, so the work can be done in the same way as when a conventional jack is placed near the center. The rotating handle is mounted in a convenient position, making it easier to rotate the handle as in conventional models, and the mounting position of the rotating handle can also be selected to the left of the center or to the left of the center, making it even more convenient. It becomes a lintel jacket that shows off its characteristics.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of the product, and FIG. 2 is a partially cutaway front sectional view. A...Jacket, B...Rotating pipe, C...Joint pipe, D...Support, 1...Abutting plate, 2...
Screw rod, 3... Rotating handle, 4, 4a... Mounting hole, 5... Connecting tube, 6... Abutting plate, 7... Pillar.

Claims (1)

[Scope of utility model registration request] A jack with a screw rod protruding from the contact plate, a rotating pipe that is screwed into the screw of the jack, and multiple joints that are connected to the rotating pipe one after another so that they can rotate together with the rotating pipe. It consists of a joint pipe and a support with a connecting tube protruding from the contact plate that can be connected to the joint pipe at the joint end, and the jack, rotating pipe, joint pipe, and support are connected to the rod-shaped body. A rotating handle is provided protruding from the mounting hole provided at the end of the rotating pipe near the center or the mounting hole provided at the joint pipe, and the rotating handle is positioned near the center of this rod-shaped body. A jack for a lintel, which is characterized by pushing out the pillars on which the lintel is constructed using a contact plate.