JP2547624Y2 - Anti-wedge pipe connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for assembling a greenhouse frame by using a lightweight pipe (or a rod; the same applies hereinafter). Used to
The present invention relates to an anti-wedge type pipe connector.

[0002]

2. Description of the Related Art Conventionally, wedge-stop-type pipe couplers for connecting and fixing two pipes by a wedge action are described in, for example, Japanese Utility Model Laid-Open Nos. 47-346 and 53-8008. It belongs to the well-known and known. One example is shown in FIG. To explain the pipe connector of this wedge type easily, connector body 1 has a substantially inverted U when viewed from the side
One pipe 3 is arranged along the semicircular folded portion 1a at the upper end of the pipe 3 (fitting).
be able to. On both lower edges, folded inward
A wedge insertion guide is formed. Looking toward the front notch 5 of the depth of the substantially inverted U-shape to reach the lower surface of the pipe 3 which are arranged as at least from said lower end of the substantially central portion is formed, it has been of the wedge insertion guide min
While being cut off , one pipe 4 can be placed in the notch 5 in an arrangement orthogonal to the pipe 3 and directly in contact with each other. A pipe coupler is constituted by a combination with a one-sided wedge 2 driven along an insertion guide 6 at the lower end edge of the coupler main body 1. FIG. 6 shows a state in which the two pipes 3 and 4 are connected and fixed in an orthogonal state. The tip of the wedge 2 should be moved under the lower pipe 4 shown in FIG.
In order to facilitate the movement to reach the inserted insertion guide 6 in the front in the driving direction, the inclined portion 2a is formed in an upwardly warped inclined portion 2a.

[0003]

[Problems to be solved by the present invention] As shown in FIG.
When two pipes 3 and 4 are connected by a single inclined wedge 2 inclined at a constant gradient in one direction, the inclined back surface of the wedge
, The wedge 2 presses the pipe 4, so that the restraining force F acts on the wedge 2 in a direction (normal direction) perpendicular to the inclined surface of the wedge 2. The restraining force F includes a vertical component F ₁ and a horizontal component F
₂ , and the restraining force F forms an angle θ equal to the inclination angle of the wedge 2 with the vertical component force F ₁ . Therefore, the wedging state of FIG. 6, acts in a direction to loosen the always wedge 2 is horizontal force F _2, the actual earthquakes other wedge 2 is loosened whenever receiving the vibration, there is sometimes retype required. In order to improve the loosening of the wedge 2 as much as possible, first, the side surface (leg) of the wedge 2 has a minimum of about 9.5 mm and a maximum of 1 mm.
The change is as large as 7.3 mm (gradient 5 °). In addition, the entire length of the wedge 2 has a sloped portion 2a of about 20 mm added to the front end of the effective portion, and as a result, the steel plate used for the conventional wedge 2 needs to be long and wide. The amount of material used is large and heavy. As a second means for solving the above-mentioned problem of loosening of the wedge 2, in addition to providing two projections 8 on the inclined surface of the wedge, as shown in FIG.
When the wedge 2 is completely driven in, the step at which the inner edge of the notch 5 of the connector body 1 just hooks is formed as a stopper 2b. Therefore, there is a disadvantage that the number of steps of the press forming process increases and it takes time. Conventionally, as shown in FIG. 7, there has been a demand that two pipes 3, 4 are arranged in parallel and connected and fixed.
However, it is impossible to drive the wedge 2 having the conventional structure into the insertion guide 6 of the connector body 1, which is inconvenient.

[0004]

As a means for solving the problems in the conventional technology. [Means for Solving the Problems], wedged type pipe for connecting device according to this invention has a substantially inverted U-shape when viewed from the side, the Folded inward at the lower edges on both sides
A wedge insertion guide is formed, and when viewed in the front direction, a substantially inverted U-shaped cutout portion 5 is formed from a lower end of a substantially central portion, and the wedge insertion guide 6 is separated from the connector main body 1. the insertion guide 6 more composed wedging type coupling der for the pipe and wedge 7, which are discharged along the
I, the wedge 7 exerts wedging effect at the site of the front and rear Kesho corresponding phase to the insertion a portion that fits into the guide 6 before and after being separated by the notch 5 two insertion guides 6,6 Legs 7a of the same height are the same and uniform
Formed at an appropriate height, with a short recess between the front and rear legs
Parts 7c are formed, characterized in that the two legs 7a of the driving direction front side inclined guide 7b are formed respectively.

[0005]

The wedge 7 is inserted into the lower part of the lower pipe 4 inserted in the notch 5 of the coupling body 1 as shown in FIG.
First, when the front leg 7a passes through the insertion guide 6 on the near side , the wedge 7 is
It is possible to lower by the step of 7c.
While driving straight and level. Then,
And the tip of 7 dives under the pipe 4 to be connected and
Keep the posture reaching the other insertion guide 6 almost horizontal
The connection operation can be easily performed.
Therefore, it is provided at the tip of the wedge as shown in FIGS.
The inclined part is useless at all, and the wedge 7 is short accordingly.
And steel consumption is reduced. Front and rear two legs 7a, 7a
Have the same and equal heights, so that the front inclined guides 7b pass over the front edges of the two corresponding insertion guides 6, 6 divided at the same time, and the front and rear legs
A uniform tightening force (wedge effect) is generated in the portion , and the state is shifted to the fixed state as shown in FIG. Also,
Since the two legs 7a, 7a are formed at the same and uniform height, the wedge 7 is inserted into the insertion guide 6 of the connector body 1.
There is no restriction on the direction of insertion (implantation direction), and the usability is good.

[0006] wedge 7 that is driven into a state of connecting the fixed as shown in FIG. 3, two legs 7a by two insertion guides 6, 6 are separated after before its setting direction, 7a is <br/> In other words, since both ends are supported, the back supporting the pipe (top
In order to keep the surface horizontal, the heights of the two front and rear legs 7a, 7a must be the same height (uniform height) that both exhibit a wedge preventing effect.
Well Is), as in the conventional single slope of bitterness beauty is not necessary to impart a preliminary height in consideration of the chance of loosening, it can be reduced the real tall (conventional wedge 2 The average value of the height is about 12mm). Accordingly, the width of the steel material required for the wedge 7 can be reduced, the amount of steel material used can be saved, and the wedge 7 is lightweight.

[0007] before and after two leg 7a of the wedge 7, since the height of 7a each are uniformly formed in the same, the pipe 4 is supported in a horizontal back of the wedge 7, the constraining force F is always pipe Acts only as a force toward the center of 4, loosening
There is no risk of (missing) . Thus, the conventional bitterness beauty
There is no need for stock-Pas retaining as, that saves the amount of processing steps.

Further, by utilizing the concave portion 7c between the legs 7a, 7a, which are divided into two parts, especially the front and rear, of the wedge 7,
As shown in FIGS. 4A and 4B, two pipes 3, 4 which are overlapped in parallel can be connected and fixed. Also pie
The upper and lower sides are rotated 90 ° from the posture of FIG.
If it is performed in the direction of
Even if your hand slips or separates, the wedge
As long as the leg on the side passes the insertion guide on the near side,
The edge of the recess is caught by the insertion guide and stops.
It is easy to work without becoming lazy. Conversely, disconnect
Therefore, even if you tap in the direction to remove the wedge,
The edge of the recess is inserted into one
Pipes fall down carelessly because they are caught in the entry guide
No risk of wedge loss, wedge loss
Not even .

[0009]

Next, an embodiment of the present invention shown in FIGS. 1 to 4 will be described. The pipe connector of the present invention also includes the connector body 1,
When viewed from the side, it is formed in a substantially inverted U-shape, and one pipe 3 can be arranged (set) along the semicircular folded portion 1a at the upper end thereof. On the lower edge of both sides
Is formed with a wedge insertion guide 6 folded inward
Have been. When viewed in the front direction as shown in FIGS. 2 and 3, a substantially inverted U-shaped notch 5 having a depth reaching at least the lower surface of the pipe 3 arranged as described above from the lower end of the substantially central portion is provided. is formed, inserted guide 6 of the wedge is partitioned. Then, one pipe 4 before Symbol notches 5
Can be stored in a state where the pipes 3 and 4 are in direct contact with each other in an arrangement orthogonal to the pipe 3. A pipe connector is configured in combination with a wedge 7 driven along the insertion guide 6 at the lower edge of the connector main body 1.

The wedge 7 is also a press-formed product made of a steel plate, but is a portion that fits in the insertion guide 6 and corresponds to the two front and rear insertion guides 6 and 6 divided by the cutout 5. the site of the height of the legs 7a, 7 a is made form <br/> each the same height to exert wedging effect, these two front and rear two legs 7a, 7a intermediate the back of the
Lower recess 7c is formed, inclined guide 7 b are formed in the driving direction front side of the respective leg 7a. Incidentally, the two legs 7a , 7a are formed as projections having a uniform height of 3 mm higher than the basic height of the side wall of the wedge 7 being 9 mm. Thus, the conventional bitterness beauty
Compared to the maximum height of the side wall being 17 mm , it is possible to form a steel plate having a small width of 10 mm on both sides in total, saving the amount of steel used, and reducing the weight of the light wedge 7 and Become. The length of the leg 7a in the driving direction is about 1
In 8 mm, inclined guide 7b of each of the driving way direction front side is formed with a gradient to solve the length range of the step about 10mm to about 3 mm. During in the front and rear two leg 7a and 7a, the length
Is formed with a recess 7c having a height of about 30 mm and a step of about 3 mm.

[0011] When you use a wedge 7 of the above configuration, as shown in FIG. 2, the notch portion of the wedge 7 connector body 1
5 along the insertion guide 6 below the lower pipe 4
Ri per To insert I, first the state in which the front of the leg portion 7a passes through the insertion guide 6 in front, after need only type in advance as it is straight horizontally. Then, the two front and rear legs 7a, 7a having the same height are connected to the respective front-side inclined guides 7a.
b moves over the front edges of the corresponding insertion guides 6 and 6 at the same time, and shifts to the state of connection and fixation as shown in FIG. 3 to be in the state of complete connection and fixation. Therefore, the connector body
The direction in which the wedge 7 is inserted into the insertion guide 6
Inserting not only right but also left like 2
It is possible and there is no restriction on the driving direction. Therefore, this
The pipe connector can be freely selected in the wedge driving direction according to the place where it is used and the surrounding conditions, and is convenient.

[0012] wedge 7 that is driven into a state of connecting the fixed as shown in FIG. 3, by two insertion guides 6, 6 back and forth in its driving direction, each height of the uniform two identical legs 7a, 7a because There is supported at both ends if said pipe 4 is supported by a horizontal back of the wedge 7, the constraining force F
Or only acts as a force directed always the center of the pipe 4 is
Luo loose (missing) is you it is not at all caused.

Next, the pipe connector of the present invention is shown in FIG.
As shown in A and B, a usage mode in which two pipes 3 and 4 are connected and fixed in a state of being overlapped in parallel is also possible.
It is convenient. That is, after the two pipes 3 and 4 are overlapped and stored in parallel along the turn-back portion 1a of the connector body 1, one insertion guide on one side is inserted into the recess 7c on one side of the wedge 7 as shown in FIG. 4A. 6 is hooked, and arrow P
Then, the wedge 7 is rotated as shown in FIG. 4 and pressed into the space between the insertion guide 6 on the other side as shown in FIG. 4B. Thereafter, by driving the wedge 7 as shown by an arrow Q with a hammer or the like, the purpose of the connection and fixation is successfully achieved.

[0014]

[Effects of the present invention] According to the wedge-stop-type pipe connector according to the present invention, the height of the two legs before and after the wedge 7 is increased.
Since the height is the same and uniform, the insertion guide of the connector body
There is no fear that the wedge comes out loosening of implanted to, can achieve the consolidated fixing of the highly stable and reliable pipe. Also,
In the wedge driving direction with respect to the insertion guide of the knot body
There are no restrictions, so you can use it right or left
It is good. Moreover, the two pipes 3 and 4 can be connected and fixed not only in an orthogonal state but also in a state of being overlapped in parallel, which is excellent in usability. Furthermore, the amount of steel used in the production of the wedge 7 can be saved, and a light and inexpensive one can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a use state of a pipe connector according to the present invention.

FIG. 2 is a front view showing an initial stage of inserting a wedge along an insertion guide for connecting a pipe.

FIG. 3 is a front view showing a connected and fixed state of the pipes.

FIGS. 4A and 4B are perspective views showing a procedure when two pipes are overlapped and connected in parallel.

FIG. 5 is a perspective view showing a use state of a conventional pipe coupler.

FIG. 6 is a front view showing a connected state of pipes by a conventional pipe connecting tool.

FIG. 7 is a front view showing a case where two pipes are overlapped and connected in parallel.

[Explanation of symbols]

3 Pipe 5 Notch 4 Pipe 6 Insertion Guide 1 Connector Body 7 Wedge 7a Leg 7b Inclined Guide 7c Recess

Claims (1)

(57) [Scope of request for utility model registration] 1. A wedge formed in a substantially inverted U-shape when viewed from the side, and folded inward at lower edge portions on both sides thereof.
Insertion guide is formed, and the connector body insertion guide of the <br/> wedge is formed notch of substantially inverted U-shape from the lower end of a substantially central portion when viewed in the front direction is divided, In a wedge-stop-type pipe connector comprising a wedge driven along the insertion guide, the wedge is a part that fits in the insertion guide, and the front and rear insertion guides are separated by the notch.
Phase leg of the corresponding height to exert wedge effects at the site of the front and rear Kesho are respectively formed in the same uniform height, front and rear
Shorty recess is formed in the middle of the two legs, the two
A wedge-stop type pipe coupling device, characterized in that inclined guides are respectively formed in front of the legs in the driving direction.