JPH0540614U - Plate material connector - Google Patents

Abstract

(57) [Summary] [Purpose] The pin and the receiving part can be pushed together to perform the tightening work very easily, and the tightening force is strong not only in the direction along the plate material to be sandwiched but also in the direction perpendicular to the plate material. (EN) Provided is a plate member connector which can be removed and can be reused without damaging it. A pin 3 is formed by a head portion 1 and a shaft portion 2, a driver groove 1a is formed in the head portion 1, a screw 4 is formed on the outer periphery of the shaft portion 2, and a receiving member made of an elastic material is formed. A plurality of inward locking portions 9 that engage with the screw 4 of the pin 3 are bent and formed on the upper end of the inner cylinder 5 of the portion 8, and the outer cylinder 6 is formed higher than the inner cylinder 5 and the outer cylinder. An outer inclined portion 10 is formed on the upper end portion of 6.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a connector for leather, cloth, synthetic resin plate, steel plate and other plate materials.

[0002]

[Prior Art]

 Many types of connectors of this type have been proposed in the past, but one similar to the present invention is illustrated in FIG.

The one shown in the figure is mainly used for connecting leather and cloth, and a male body c is formed by a head a and a shaft portion b, and a plurality of grooved stepped portions d are formed on the shaft portion b. A female body h having a plurality of stages formed with an inward locking portion f at the upper end of the tubular portion e and an outward receiving portion g at the lower end matches the connecting holes k, k of two sheets of skin j, j, for example. Then, the male body c is pushed into the female body h in the connecting holes k, k as shown in the drawing, and the inward locking portion f is engaged with the grooved stepped portion d, whereby the two leather j , J, especially in the plane (horizontal direction) connection.

[0004]

[Problems to be solved by the device]

 In the conventional connector described above, the inward locking portion f of the female body h engages with the grooved step portion d of the shaft portion b, so that the horizontal coupling of the two skins j, j achieves the purpose. However, there was a drawback that the vertical tightening force was extremely weak.

Further, when removing the connecting tool, the engagement between the grooved stepped portion d of the male body c and the inward locking portion f of the female body h has to be released, but the means is provided. Therefore, for example, the female body h and the male body c are separated by inserting a driver or the like between the leather j and the head a and forcibly prying. Therefore, the removal is not easy, and when the removal is performed, the grooved stepped portion d and the inward locking portion f are often damaged, which makes it impossible to reuse the tool. .

The present invention has been made to solve the above-mentioned problems, and it is possible to perform the tightening work very easily by pushing the pin and the receiving part to each other, and to horizontally move along the plate material which is the object to be clamped. It is an object of the present invention to provide a plate connector that exerts a strong tightening force not only in the vertical direction but also in the vertical direction, and can be easily removed without damaging and reused.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the plate member connector of the present invention forms a pin by a head and a shaft, forms a driver groove in the head, and forms a screw on the outer periphery of the shaft. On the other hand, a receiving portion made of an elastic material in which the inner cylinder and the outer cylinder are connected at the bottom is formed, and a plurality of inward locking portions that engage with the screw of the pin are bent and formed at the upper end of the inner cylinder. The outer cylinder is formed to be higher than the inner cylinder, and an outward inclined portion is formed at the upper end of the outer cylinder.

[0008]

[Action]

 By pushing the pin and the receiving part relative to each other, the inward locking part bent at the upper end of the inner cylinder of the receiving part can be engaged with the screw formed on the shaft part of the pin, and at this time The outwardly inclined portion formed on the upper end of the receiving portion can be elastically pressed against the plate material.

As a result, the inward locking portion is tightly engaged with the screw, and the plurality of plate members can be firmly tightened not only in the direction along the plate members but also in the vertical direction. it can. Needless to say, since the inward locking portion can be engaged with the screw in a position-selectable manner, it is possible to flexibly deal with a change in the thickness of the plate material.

Then, in order to release the engagement, the driver is inserted into the driver groove formed in the head of the pin, and the pin is screwed in and rotated in the releasing direction, so that the plate material or the connecting tool is released. The pin can be separated from the receiving portion without being damaged. Therefore, the connector can be reused.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. A pin 3 is formed by the head portion 1 and the shaft portion 2, a driver groove 1a is formed in the head portion 1, and a screw 4 is formed on the outer periphery of the shaft portion 2, while an inner cylinder 5 and an outer cylinder 6 are formed. A receiving portion 8 made of an elastic material such as a resin is connected to the bottom portion 7, and a plurality of inward locking portions 9 that engage with the screws 4 are formed at the upper end portion of the inner cylinder 5 thereof. The cylinder 6 is formed to be higher than the inner cylinder 5, and the outwardly inclined portion 10 is formed at the upper end of the outer cylinder 6.

The lower end surface 2 a of the shaft portion 2 and the screw 4 are formed to have a smaller diameter than the outer diameter of the root portion of the shaft portion 2 so that they can be easily inserted into the holes 12, 12 of the steel plates 11, 11. The lower surface side of the screw 4 is formed into a steeply inclined surface 4a so that it can be inserted more easily between the inward locking portions 9 ... Inner ends, and the upper surface side of the screw 4 is formed into a gently inclined surface 4b. Engagement with the inner end portions of the respective inward locking portions 9 ... Is stabilized, and separation is prevented.

As shown in FIGS. 4 and 5, the inward locking portions 9 ... Formed on the upper end of the inner cylinder 5 are formed with four grooves 9a ... Opening inward from the upper end of the inner cylinder 5. Thereby forming inward locking portions 9 ... Inclining inwardly downward as shown in the drawing, the inward locking portions 9 ... Are engaged with the screw 4 formed on the shaft portion 2 of the pin 3. It is designed so that it can be engaged in a self-locking manner and can exert a separation preventing effect after the engagement. The outwardly inclined portion 10 formed on the upper end portion of the outer cylinder 6 is also divided by four grooves 10a as shown in FIGS. 4 and 5, and a divergent surface 10b is formed at the uppermost end. It is designed to have a strong tightening force. Further, the lower end portion of the outer cylinder 6 is inclined upward and outward so as to be easily expanded when tightened. The bottom surface of the bottom portion 7 that connects the inner cylinder 5 and the outer cylinder 6 is formed in a horizontal plane so that it can be easily pressed by a finger.

The height from the top of the screw 4 to the bottom of the shaft 2 is made smaller than the height from the inner end of the inward locking portion 9 of the inner cylinder 5 to the lower end of the inner cylinder 5. Thus, the shaft portion 2 is prevented from protruding downward from the bottom portion 7 so that the lower end 2a of the shaft portion does not hit the finger when the receiving portion 8 is pressed with a fingertip.

Next, the operation of the above configuration will be described. By pressing the pin 3 and the receiving portion 8 relatively into the holes 12, 12 of the two stacked steel plates 11, 11, the screw 4 formed on the shaft portion 2 of the pin 3 faces inward of the receiving portion 8. The inner end of the locking portion 9 can be tightened and engaged freely. At this time, the divergent surface 10b at the uppermost end of the divided outward slanted portion 10 of the outer cylinder 6 is pressed against the lower surface of the steel plate 11 in a divergent manner, as shown in FIG. Bend outward downward around the center of 7, and firmly tighten both steel plates 11, 11 by elastic force.

FIG. 6 shows a different embodiment, showing the bottom portion 7 in which the lower end portions of the inner and outer cylinders 5 and 6 of the receiving portion 8 of the previous embodiment (see FIGS. 1 to 5) are integrally formed. The part of is the same as that of the previous embodiment, and the same or corresponding parts are denoted by the same reference numerals. As shown in the figure, since the outwardly inclined portion 10 is formed to have a slightly thicker wall, a stronger tightening force can be obtained.

[0017]

[Effect of the device]

 As described above, according to the present invention, a pin is formed by the head portion and the shaft portion, a driver groove is formed in the head portion, and a screw is formed on the outer periphery of the shaft portion, while the inner cylinder and A receiving portion made of an elastic material is formed by connecting the outer cylinder to the bottom portion, and a plurality of inward locking portions that engage with the screws of the pins are formed by bending at the upper end portion of the inner cylinder to form the inner cylinder inside. Since it is formed higher than the cylinder and an outwardly inclined part is formed at the upper end of the outer cylinder, the inward locking part of the receiving part is tightened to engage freely with the screw of the pin by the relative pushing of the pin and the receiving part. It is possible to firmly tighten a plurality of stacked plate materials not only in the direction along the plate materials but also in the vertical direction. Further, since the inward locking portion can be engaged with the screw of the pin in a position-selectable manner, it is possible to flexibly cope with a change in thickness of the plate material. To release the engagement, insert a screwdriver into the screwdriver groove formed on the head of the pin and screw in the pin to rotate it in the releasing direction, without damaging the plate or connecting tool. The pin can be separated from the connector and the connector can be reused.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of an essential part of a connector for plate materials according to an embodiment of the present invention before tightening.

FIG. 2 is a vertical cross-sectional view of a main part when the same is fastened.

FIG. 3 is an exploded perspective view of the same.

FIG. 4 is a rear view of the receiving portion.

FIG. 5 is a vertical sectional view of the same.

FIG. 6 is a vertical cross-sectional view showing another embodiment of the receiving portion.

FIG. 7 is a vertical cross-sectional view showing a conventional example of a connecting tool.

[Explanation of symbols]

1 ... Head part, 1a ... Driver groove, 2 ... Shaft part, 3 ... Pin,
4 ... Screw, 5 ... Inner cylinder, 6 ... Outer cylinder, 7 ... Bottom part, 8 ... Receiving part,
9 ... Inward locking portion, 10 ... Outward inclined portion.

Claims (1)

[Scope of utility model registration request] 1. A pin is formed by the head and the shaft, a driver groove is formed in the head, and a screw is formed on the outer periphery of the shaft, while the inner cylinder and the outer cylinder are connected at the bottom. A receiving portion made of an elastic material is formed, and a plurality of inward locking portions that engage with the screw of the pin are bent and formed at the upper end portion of the inner cylinder,
A connector for a plate material, wherein the outer cylinder is formed higher than the inner cylinder, and an outwardly inclined portion is formed at an upper end portion of the outer cylinder.