JP2009121625A - Substrate connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a substrate connector for easily detachably connecting opposed two substrates via a predetermined interval. <P>SOLUTION: This invention relates to the substrate connector for connecting the opposed two substrates at a predetermined interval. The substrate connector is composed of a spacer 1 and a female snap 5. A fixing part fixed to one substrate 6 is formed on one end of the spacer 1, and the other end is formed with a projection part 3 inserted into the other substrate 7 and detachably fitting the female snap 5 and a substrate receiving part 4 being a receiving part of the inserted other substrate 7. The female snap 5 is fitted to the projection part 3, and thereby, the other substrate 7 is sandwiched and fixed by the female snap 5 and the substrate receiving part 4, and the two substrates are connected. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a substrate connector for connecting two opposing substrates via a predetermined interval.

  Conventionally, when connecting two substrates facing each other through a predetermined interval, a screw having a length longer than the interval between two desired substrates is inserted into one substrate provided with an insertion hole at a predetermined location. Then, this screw is inserted into the through hole of the cylindrical spacer provided with the through hole in the center, and further inserted into the insertion hole of the other board provided with the insertion hole at a predetermined location, and then a nut or the like is inserted. The two substrates were connected by screwing and tightening with screws. That is, in order to connect the substrates, three parts such as a screw, a spacer, and a nut are required.

However, according to this method, the screw must be inserted into one board, the spacer is interposed, the screw is inserted into the other board, and the nut must be further tightened. It was time consuming.
In addition, since the spacer is an independent part, there is a risk that the insertion into the screw may fail in the connecting operation or the spacer itself may be lost.

In order to solve this problem, for example, an invention described in Japanese Patent Application Laid-Open No. 07-269537 has been proposed.
According to the present invention, a flange is formed at one end of a cylindrical spacer, the cylindrical spacer is inserted into a hole provided in a metal substrate, and the flange portion of the spacer is brought into contact with the peripheral portion of the hole of the substrate. The peripheral edge of the hole of the metal substrate is plastically deformed by pressing and the spacer and the substrate are caulked and fixed together. Such a fixing method is generally called “clinching”.
On the other hand, the other end of the cylindrical spacer is open, and a thread groove is formed on the inner diameter.

According to this invention, when two opposing substrates are connected at a predetermined interval, after a spacer is press-fitted and fixed to one substrate, the other substrate is placed on the tip of this spacer, By screwing a screw into a screw groove provided on the inner diameter of the spacer via the substrate, the two substrates can be connected at a predetermined interval.
At this time, since the spacer is fixed to one substrate, when the other substrate is connected, it is only necessary to screw it from the other substrate side, which simplifies the operation and removes the spacer during the operation. There is no risk of losing it.

However, in the present invention, since the other substrate is fixed by screwing, it is necessary to rotate and tighten the screw, and it still takes time for the connecting operation. Further, in the screwing operation, if the tightening torque is too large, the substrate may be damaged, and conversely if too small, the screwing may be loosened.
In addition, when fixing the other substrate, the other substrate must be placed on the tip of the spacer while aligning the screw hole provided in the spacer with the insertion hole provided in the other substrate. The work is troublesome.
Furthermore, a highly accurate screw groove must be provided on the spacer side so as to be screwed appropriately with the fixing screw.
Japanese Patent Application Laid-Open No. 07-269537

  This invention makes it a subject to obtain the board | substrate coupling tool which connects the two board | substrates which oppose easily through a predetermined space | interval so that attachment or detachment is possible.

The present invention is a substrate connector for connecting two opposing substrates at a predetermined interval, and the substrate connector comprises a spacer and a female snap, and one end of the spacer is fixed to one substrate. The other end is formed with a convex portion that is inserted into another substrate and the female snap is detachably fitted thereto, and a substrate receiving portion that serves as a receiving portion for the other inserted substrate. The female snap is formed and fitted into the convex portion, and the other snap is sandwiched and fixed by the female snap and the substrate receiving portion, and the two substrates are connected. .
In the present invention, the substrate includes a thin plate body such as a sheet metal or various panels, in addition to a circuit substrate in which an electric circuit is incorporated.
The spacer may be made of a material such as a resin in addition to a metal such as stainless steel or iron, and may be formed in a columnar shape such as a cylinder or a prism with an appropriate length according to the interval between two substrates to be connected. it can.
The spacer fixing part and the substrate are fixed by welding, welding, bonding using an adhesive, or by pressing the fixing part against the substrate to plastically deform the peripheral part of the hole in the substrate. Clinching that is fixed by caulking can be considered. In the case of fixing by clinching, the fixing portion preferably includes a step portion and a flange portion for plastically deforming the substrate when the spacer is press-fitted into the substrate. In the case of fixing by clinching, the spacer is preferably made of a material having higher hardness than the substrate.
As for the female snap, among the general-purpose snaps for overlapping and joining the cloth pieces, etc., those having a fitting hole that can be detachably fitted with the convex portion can be used, such as stainless steel, iron, In addition to metals such as brass, it is conceivable to use materials such as resins.

The invention of claim 2 is characterized in that a stepped portion that is fitted into an insertion hole provided in another substrate is formed in the rising portion of the convex portion.
The step portion is for preventing the wobbling of the substrate when the convex portion of the spacer is inserted into the insertion hole provided in the substrate, and the entire step portion is fitted in the insertion hole of the substrate. Alternatively, a rib in the vertical direction may be formed at the rising portion of the convex portion and fitted into the insertion hole of the substrate. The height of the stepped portion is preferably about the thickness of the other board to be fitted, but if the position of the other board is temporarily fixed in the fitted state, It is not limited.

The invention according to claim 3 is characterized in that the fixing portion is formed in a flange shape.
The flange may have a diameter larger than the diameter of the insertion hole of the substrate to be fixed, and it is conceivable that the periphery thereof is formed in an arc shape or a saw blade shape.

According to the present invention, a substrate connector for connecting two opposing substrates at a predetermined interval is constituted by a spacer and a female snap, and a fixing portion fixed to one substrate is formed at one end of the spacer. In addition, since the convex part to which the female snap is detachably fitted to the other end and the substrate receiving part to be the receiving part of another substrate are formed, after fixing one end of the spacer to one substrate, By inserting the convex portion into the insertion hole provided in the other substrate, placing the other substrate on the substrate receiving portion, and fitting the female snap to the convex portion, the other substrate can be easily attached to the substrate receiving portion and the female portion. The two substrates can be connected by being clamped and fixed with a snap.
And since the fitting to the convex part of a female snap is made removable, it can be made to detach | leave from a spacer convex part easily, and another board | substrate can be removed.
Therefore, two substrates can be detachably connected without using screws.

  According to the second aspect of the present invention, since the stepped portion that is fitted into the insertion hole provided in the other substrate is formed in the rising portion of the convex portion, the other substrate is inserted into the convex portion. At this time, the position of the other substrate is temporarily fixed by the stepped portion, the positional displacement of the other substrate can be prevented, and the workability of the connecting operation of the substrates can be improved.

  According to invention of Claim 3, since the adhering part is formed in the flange shape at the end of the spacer, it is suitable for adhering by clinching. That is, since the pressing surface at the time of the clinching work can be flattened, the pressure can be evenly applied to the clinching part, and the clinching work can be surely performed.

  Examples of the present invention will be described below.

1A and 1B are views showing a first embodiment of the present invention, in which FIG. 1A is a female snap, and FIG. 1B is a partial sectional view of a spacer.
A metal (for example, stainless steel) spacer 1 is formed in a cylindrical shape having a diameter of 5 mm, and a groove 21 constituting a clinching portion 2 serving as a fixing portion and a flange 22 having a diameter of 6 mm are formed at one end thereof. In this embodiment, the peripheral edge of the flange 22 is formed in an arc shape, but may be formed in a saw blade shape.
A substantially cylindrical convex portion 3 is formed on the other end of the spacer 1. The convex portion 3 is a fitting portion 31 having a length of 2 mm from the tip to be fitted with the female snap 5, and the peripheral wall of the fitting portion 31 extends axially from a position 1.2 mm from the tip. A taper portion 31a is provided which is inclined at 7 [deg.]. The fitting portion 31 has a maximum diameter of 2.88 mm and a minimum diameter of 2.62 mm.
A cylindrical step 32 having a diameter of 3 mm is formed at the rising portion of the convex portion 3. The height of the stepped portion 32 is -0.1 mm higher than the plate thickness of the substrate 7 described later.
Further, the substrate receiving portion 4 is formed at the other end of the spacer 1 by forming the step portion 32 with a diameter smaller than the diameter of the spacer 1.

  The female snap 5 is made of brass and has a fitting hole 51 having a diameter of 2.7 mm. A side wall is raised from a locking portion 52 that forms the periphery of the fitting hole 51, and 1.5 to 1. After being warped in the outer peripheral direction at a height of 6 mm, it is warped again in the inner peripheral direction to constitute a substantially S-shaped spring portion 53. The female snap has a diameter of 9.2 mm and a height of 1.9 mm. The lower end of the spring portion 53 is formed at a position lower than the lower end of the locking portion 52.

FIG. 2 is a view showing a state in which two opposing substrates are connected using the first embodiment of the present invention.
The lower substrate 6 is made of a softer metal than the spacer 1 and has an insertion hole having a diameter of 5.0 mm in advance at a predetermined position. The material of the upper substrate 7 is not particularly limited, but similarly, an insertion hole having a diameter of 3.1 mm is provided in advance. The thickness of the substrate 6 is 0.8 mm, and the thickness of the substrate 7 is 1.0 mm.

  The spacer 1 is inserted through the insertion hole in the direction of the arrow from the lower side of the lower substrate 6, and the flange 22 is press-fitted into the substrate 6 by a press machine. At this time, since the substrate 6 is made of a softer metal than the spacer 1, when the flange 22 is pressed, the substrate 6 is plastically deformed so as to enter the groove 21, and the clinching part 2 of the spacer 1 and the substrate 6 Are fixed together. As a result, the spacer 1 and the substrate 6 are completely fixed and do not come off.

  Next, the insertion hole of the upper substrate 7 is inserted into the convex portion 3 of the spacer 1 and fitted into the stepped portion 32, and the peripheral portion of the insertion hole is placed on the substrate receiving portion 4. At this time, since the stepped portion 32 and the insertion hole are fitted, the substrate 7 is temporarily fixed, and no positional deviation occurs.

Then, the fitting hole 51 of the female snap 5 is fitted into the fitting portion 31 protruding from the substrate 7. Here, the fitting portion 31 of the spacer 1 is provided with a tapered portion 31a, and the maximum diameter of the tapered portion 31a is 2.88 mm, while the diameter of the fitting hole 51 of the female snap 5 is 2.7 mm. Since the engaging portion 52 is provided at the peripheral portion thereof, the female snap 5 is engaged with the engaging portion 52 in the middle of the taper portion 31a, and is fitted unless a certain force is applied. The female snap 5 cannot be detached from the joint portion 31.
Further, since the lower end of the spring portion 53 of the female snap 5 is formed at a position lower than the locking portion 52, the locking portion 52 is locked by the taper portion 31 a, and at the same time, the lower end of the spring portion 53 is the substrate 7. Can be pressed downward (spacer 1 direction).
Therefore, the substrate 7 is sandwiched and fixed by the substrate receiving portion 4 of the spacer 1 and the spring portion 53 of the female snap 5 so that the two substrates 6 and 7 can be attached and detached through a predetermined interval of the length of the spacer 1. Can be linked.

  When the female snap 5 is detached from the convex portion 3 of the spacer 1, for example, a plate-like object gradually thinned toward the tip, such as a nipper, is pushed between the female snap 5 and the substrate 7, and this principle is applied. If a force of a certain level or more is applied to the female snap 5, it can be easily detached. After the female snap 5 is detached from the convex portion 3, the substrate 7 can be removed.

FIG. 3 is a view showing the spacer 1 in the second embodiment of the present invention.
The spacer 1 in this embodiment has four step portions 32 formed in the shape of ribs in the vertical direction, and four spacers 1 are disposed on the peripheral wall of the rising portion of the convex portion 3. Other configurations are common to the spacer 1 in the first embodiment.
When the substrate 7 is fixed, the stepped portion 32 formed in a rib shape is fitted into the insertion hole of the substrate 7 so that the substrate 7 is temporarily fixed, so that the displacement of the substrate 7 during the connecting operation is prevented. be able to.

FIG. 4 is a partial sectional view showing a spacer in the third embodiment of the present invention.
The spacer 1 in the first embodiment has the following differences in the configuration of the clinching part 2.
The metal spacer 1 is formed in a columnar shape having a diameter of 6.0 mm, and a step portion 23 having a sawtooth-like periphery with a diameter of 5.1 mm and a step portion 24 having a diameter of 4.5 mm are formed at one end thereof. At the rising portion of the step portion 24, an upper taper portion 24 a that is inclined at 30 ° in the axial direction toward the step portion 23 is provided to constitute the clinching portion 2.
About another structure, including a female snap, it is common in the 1st Example.

FIG. 5 is a view showing a state in which two opposing substrates are connected using the third embodiment of the present invention.
The lower substrate 6 is made of a softer metal than the spacer 1, and an insertion hole having a diameter of 4.5 mm is provided in advance at a predetermined position. The material of the upper substrate 7 is not particularly limited, but is similarly provided with an insertion hole having a diameter of 3.1 mm in advance. The substrate 6 has a thickness of 1.45 mm, and the substrate 7 has a thickness of 1.0 mm.

The spacer 1 is inserted into the insertion hole in the direction of the arrow from the upper side of the lower substrate 6, and the stepped portion 23 is press-fitted into the substrate 6 by a press machine. At this time, since the substrate 6 is made of a softer metal than the spacer 1, when the step portion 23 is press-fitted, the substrate 6 is plastically deformed so as to enter the tapered portion 24a, and the clinching portion 2 of the spacer 1 and the substrate 6 and are fixed together. Thereby, the spacer 1 and the board | substrate 6 will adhere completely, and do not remove | deviate.
Other configurations are the same as those of the first embodiment.

FIG. 6 is a partial cross-sectional view showing a spacer in the fourth embodiment of the present invention.
The spacer 1 in the first embodiment has the following differences in the configuration of the clinching part 2.
The metal spacer 1 is formed in a cylindrical shape having a diameter of 5.0 mm, and a step portion 23 having a diameter of 4.5 mm and a saw blade at one end thereof, and a tip portion having a diameter of 4 mm and extending to the step portion 23. A clinching portion 2 is formed by forming a stepped portion 24 formed in a tapered shape that is inclined at 30 ° in the center direction.
About another structure, including a female snap, it is common in the 1st Example.

FIG. 7 is a view showing a state in which two opposing substrates are connected using the fourth embodiment of the present invention.
The lower substrate 6 is made of a softer metal than the spacer 1, and an insertion hole having a diameter of 4.5 mm is provided in advance at a predetermined position. The material of the upper substrate 7 is not particularly limited, but is similarly provided with an insertion hole having a diameter of 3.1 mm in advance. Both the substrates 6 and 7 have a plate thickness of 1.0 mm.

The spacer 1 is inserted into the insertion hole in the direction of the arrow from the upper side of the lower substrate 6, and the stepped portion 23 is press-fitted into the substrate 6 by a press machine. At this time, since the substrate 6 is made of a softer metal than the spacer 1, the substrate 6 is plastically deformed so as to enter the taper of the stepped portion 24, and the clinching portion 2 of the spacer 1 and the substrate 6 are caulked together. It is fixed.
Other configurations are the same as those of the first embodiment.

FIG. 8 is a partial sectional view showing a spacer in the fifth embodiment of the present invention.
The spacer 1 in the first embodiment has the following differences in the configuration of the clinching part 2.
The metal spacer 1 is formed in a columnar shape having a diameter of 5.5 mm, and a clinching portion 2 having a bulging portion 25 having a diameter of 4.55 mm and a saw blade-like periphery is formed at one end thereof.
About another structure, including a female snap, it is common in the 1st Example.

FIG. 9 is a diagram showing a state in which two opposing substrates are connected using the fifth embodiment of the present invention.
The lower substrate 6 is made of a synthetic resin material such as plastic, and an insertion hole having a diameter of 4.2 mm is provided in advance at a predetermined position. The material of the upper substrate 7 is not particularly limited, but is similarly provided with an insertion hole having a diameter of 3.1 mm in advance. The thickness of the substrate 6 is 1.5 mm, and the thickness of the substrate 7 is 1.0 mm.

The spacer 1 is press-fitted into the insertion hole in the direction of the arrow from the upper side of the lower substrate 6. That is, when pressure is applied to the spacer 1 by a press machine, the bulging portion 25 having a diameter larger than the insertion hole of the substrate 6 presses the peripheral portion of the insertion hole of the substrate 6. As a result, the substrate 6 is deformed so as to fit into the shape of the bulging portion 25, and the clinching portion 2 of the spacer 1 and the substrate 6 are caulked and fixed.
Other configurations are the same as those of the first embodiment.

  The numerical values such as dimensions described in the above embodiments are appropriately selected depending on the size, thickness, weight, interval provided between the substrates, dimensions of the female snap, etc., and the numerical values in these embodiments. It is not limited to.

  The present invention relates to a substrate connector for detachably connecting two opposing substrates via a predetermined interval, and has industrial applicability.

Partial sectional view showing the first embodiment of the present invention Similarly, a partial cross-sectional view showing a state in which two substrates are connected The fragmentary sectional view which shows the spacer 1 in 2nd Example of this invention The fragmentary sectional view which shows the spacer 1 in 3rd Example of this invention Similarly, a partial cross-sectional view showing a state in which two substrates are connected The fragmentary sectional view which shows the spacer 1 in 4th Example of this invention Similarly, a partial cross-sectional view showing a state in which two substrates are connected The fragmentary sectional view which shows the spacer 1 in 5th Example of this invention Similarly, a partial cross-sectional view showing a state in which two substrates are connected

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Spacer 2 Clinching part 21 Groove 22 Flange 23 Step part 24 Step part 24a Taper part 25 Expansion part 3 Convex part 31 Fitting part 31a Taper part 32 Step part 4 Substrate receiving part 5 Female snap 51 Fitting hole 52 Locking part 53 Spring part 6, 7 Substrate

Claims (3)

A substrate connector for connecting two opposing substrates via a predetermined interval,
The board connector comprises a spacer and a female snap,
One end of the spacer is formed with a fixing portion that is fixed to one substrate,
The other end is formed with a convex portion that is inserted into another substrate and the female snap is detachably fitted, and a substrate receiving portion that is a receiving portion of the other inserted substrate,
The female snap is fitted to the convex portion, and the other substrate is sandwiched and fixed by the female snap and the substrate receiving portion, and the two substrates are connected.
Board connector. The board | substrate coupling tool of Claim 1 in which the step part fitted by the insertion hole provided in the other board | substrate was formed in the standing | starting-up part of a convex part. The board connector according to claim 1, wherein the fixing portion is formed in a flange shape.

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