JP6908931B2 - Catch device - Google Patents

Description

The present invention relates to a catching device.

Conventionally, a catch device including a keeper and a catch body for sandwiching the insertion portion of the keeper between a pair of balls in the horizontal direction, the vertical direction, and the thickness direction is known (for example, Non-Patent Document 1). reference).

As shown in FIG. 7, the catch body 2 disclosed in Non-Patent Document 1 has a horizontal direction X, a vertical direction Y, and a thickness direction Z, extends in the horizontal direction X, and has screw holes 2c inside, respectively. It has two cylindrical portions 2a having the above. The pair of cylindrical portions 2a have tapered portions 2b in opposite portions whose inner diameters gradually increase in directions away from each other. The catch body 2 further has a pair of balls 3a and 3b, a pair of compression coil springs 4a and 4b, and a pair of screw caps 5a and 5b.

Balls 3a and 3b are arranged in the tapered portion 2b, and the size of the inner diameter of the cylindrical portion 2a facing each other is such that the inner peripheral surfaces of the balls facing each other are exposed and the tapered portion 2b to the ball 3a. , 3b is set smaller than the diameter of the ball so that it does not come off.

The outer peripheral surfaces of the screw caps 5a and 5b have screw holes 5c that are screwed into the screw holes 2c inside the cylindrical portion 2a, and the compression coil springs 4a, between the balls 3a and 3b and the screw caps 5a and 5b. After arranging 4b, the screw holes 5c of the screw caps 5a and 5b and the screw holes 2c of the cylindrical portion 2a are screwed together, and the pair of balls 3a and 3b are brought close to each other by the urging force of the compression coil springs 5a and 5b. I'm urging you to do it.

"Stainless Steel Ball Catch", [online], TAKIGEN Digital Catalog, [May 29, 2018], Internet <https://www.takigen.co.jp/jp/contents/eyesearch/detail.do?name= 23531>

However, in the catch device disclosed in Non-Patent Document 1, the catch body 2 includes a pair of balls 3a and 3b, a pair of compression coil springs 4a and 4b, and a pair of screw caps 5a and 5b. There was a problem that the number of points increased and it took time and effort to assemble. In addition, the compression coil springs 3a and 3b are arranged with respect to the catch body 2 so that the longitudinal direction of the pair of compression coil springs 4a and 4b and the longitudinal direction of the catch body 2 (both in the lateral direction X) coincide with each other. There was a problem that the main body 2 was enlarged in the lateral direction X.

An object of the present invention is to provide a catching device having a small number of parts and a small lateral dimension.

In order to solve the above problems, the present invention comprises a catch device including a horizontal direction, a vertical direction, a thickness direction, a keeper, and a catch body that inserts and removes an insertion portion of the keeper between a pair of balls. The catch body supports the pair of balls so that the separation dimension can be changed, and the catch body has one end portion of the pair of balls that contacts the opposite peripheral surface of one ball and the peripheral surface of the pair. It has an urging means having an other end portion in contact with the peripheral surface on the opposite side of the opposite peripheral surface of the other ball in the pair of balls, and the urging force of the one said urging means causes the pair of balls to come into contact with each other. It is configured to be urged in a close direction, and further has an engaging means for engaging the urging means with the catch body, and the engaging means is one of the catch body and the urging means. While bringing the pair of engaging holes provided in the above and the pair of engaging claws provided on the other side and the pair of engaging claws into contact with the catch body or the urging means, the one end portion of the urging means. When a force is applied to the urging means to engage the engaging hole with the engaging claw so that the other end thereof is separated from the other end, the engaging claw attaches to the catch body or the urging means. It is characterized by having an inclined surface having an upward slope.

According to the catch device according to the present invention, the catch body is formed by one end of a pair of balls in contact with the opposite peripheral surface of one ball and the opposite peripheral surface of the other ball in the pair of balls. It has an urging means having an other end that contacts the peripheral surface on the opposite side, and the urging force of one urging means urges a pair of balls in a direction close to each other, thus reducing the number of parts. At the same time, the lateral dimension can be reduced.

The drawings show specific embodiments of the invention according to the present disclosure, including not only essential configurations of the invention, but also selective and preferred embodiments.
(A) A perspective view showing a main body of a housing using the catch device according to the present invention. (B) The perspective view which shows the door of the housing which uses the catch device. Front view of the catch device (front view showing the state where the insertion part of the keeper is separated from the pair of balls.) A perspective view of the catch body of the catch device. FIG. 3 is a cross-sectional view taken along the line IV-IV of FIG. An exploded perspective view of the catch device. Explanatory drawing which shows the state which the insertion part of a keeper is located between a pair of balls. An exploded perspective view of a conventional catch device.

The details of the catch device according to the present invention will be described with reference to the accompanying drawings. In addition to the essential requirements of the present invention, the following embodiments include requirements that can be selectively adopted and requirements that can be appropriately combined.

<First Embodiment>
FIG. 1 is a perspective view of a housing 20 to which the catch device 10 according to the present invention is attached. As shown in FIG. 1, the housing 20 is arranged between the main body 21 which is a fixed wall, the door 22 which is a movable wall, and the main body 21 and the door 22, and the door 22 can be opened and closed with respect to the main body 21. It has a hinge (not shown) that supports the door. The catch device 10 has a horizontal direction X, a vertical direction Y, and a thickness direction Z that intersect (orthogonally) with each other.

The catch main body 30 of the catch device 10 is attached to the main body 21. The keeper 40 of the catch device 10 is attached to the door 22. Although not shown, the keeper 40 may be attached to the main body 21 while the catch main body 30 may be attached to the door 22. That is, the main body 21 is attached to the first wall, which is one of the fixed wall and the movable wall, and the keeper 40 is attached to the second wall, which is the other.

As shown in FIG. 2, the keeper 40 extends in a direction away from the keeper main body 41 adjacent to the door 22 and the keeper main body 41 with respect to the door 22, and inserts and removes between the pair of balls 51a and 51b of the catch main body 30. It has an insertion portion 42. The insertion portion 42 has a small dimension in the lateral direction X of the base end portion 42b adjacent to the keeper main body 41, while the insertion portion 42 has a large dimension in the lateral direction X of the tip portion 42a away from the keeper main body 41.

The keeper main body 41 has through holes 43a and 43b on both sides of the insertion portion 42 in the lateral direction X, and screws 44a and 44b whose tips are passed through these through holes 43a and 43b are screwed into the screw holes of the door 22. The keeper 40 is attached to the door 22 by allowing the door 22 to be attached.

The catch main body 30 has a plate-shaped top wall portion 31 adjacent to the main body 21 and a side wall portion 32 extending from the top wall portion 31 in a direction away from the main body 21.

The top wall portion 31 has, for example, two through holes (mounting holes) 30a and 30b for attaching the catch main body 30 to the main body 21 inside surrounded by the side wall portion 32, and the tips of the through holes 30a and 30b have tips. The catch main body 30 is attached to the main body 21 by screwing the screws 36a and 36b through which the screws have been passed into the screw holes (not shown) of the main body 21.

The side wall portion 32 has a first support portion 32a for supporting one ball in the pair of balls 51a and 51b at one end, and the other ball in the pair of balls 51a and 51b at the other end. It has a second support portion 32b that supports it, and has a connecting portion 32c that connects the first support portion 32a and the second support portion 32b between the first support portion 32a and the second support portion 32b. ing. An opening 33 is located between the first support portion 32a and the second support portion 32b, and the connecting portion 32c is located on the opposite side of the opening 33 in the vertical direction Y.

The side wall portion 32 has a substantially U shape when viewed from one side in the thickness direction Z (when viewed from below to above) so as to have an opening 33 between the first support portion 32a and the second support portion 32b. It is formed so as to have a shape.

The first support portion 32a and the second support portion 32b support the pair of balls 51a and 51b so that the separation dimensions can be changed. Specifically, the first support portion 32a and the second support portion 32b have a ball accommodating hole 34 having an outer opening 34a located on the outer peripheral side and an inner opening 34b on the inner peripheral side. The diameter of the outer opening 34a is larger than the diameter of the balls 51a and 51b, and the balls 51a and 51b can be inserted through the outer opening 34a, while the diameter of the inner opening 34b is smaller than the diameter of the balls 51a and 51b. A part of the balls 51a and 51b can be exposed from the inner opening 34b, but the balls 51a and 51b are prevented from coming out from the ball accommodating hole 34 through the outer opening 34b.

The outer peripheral surface of the side wall portion 32 has a concave groove 35 into which a leaf spring 60, which is an urging means, is fitted. The leaf spring 60 is formed so as to be elastically deformable by, for example, a thermoplastic synthetic resin or a metal. The leaf spring 60 is continuous in a substantially U shape when viewed from one side (from lower side to upper side) or the other side (from upper side to lower side) in the thickness direction Z, and has one end portion 61a facing the first support portion 32a and a first portion 61a. 2 It has an other end portion 61b facing the support portion 32b.

Engaging means 70a and 70b having a pair of engaging holes 72a and 72b and a pair of engaging claws 71a and 71b are located between the catch body 30 and the leaf spring 60. The engaging means 70a, 70b is a plate so that one end 61a and the other end 61b are separated from each other while the one end 61a and the other end 61b of the leaf spring 60 are brought into contact with the pair of engaging claws 71a, 71b, respectively. When a force is applied to the spring 60 to engage the engaging holes 72a and 72b with the engaging claws 71a and 71b, the engaging claws 71a and 71b have an upward slope with respect to the one end 61a and the other end 61b. It has surfaces 73a and 73b.

In a state where the leaf spring 60 is attached to the catch body 30 by the engaging means 70a and 70b, one end 61a of the leaf spring 60 is the circumference of the pair of balls 51a and 51b on the opposite side of the opposite peripheral surface of one of the balls 51a. Contact the surface. The other end 61b of the leaf spring 60 comes into contact with the peripheral surfaces of the pair of balls 51a and 51b on the opposite side of the opposite peripheral surfaces of the other balls 51b. The urging force of the leaf spring 60 urges the pair of balls 51a and 51b in directions close to each other. Further, in this mounted state, the leaf spring 60 is fitted in the concave groove 35 of the catch body 30, and the leaf spring 60 does not protrude from the outer peripheral surface of the catch body 30, and is curved along the outer peripheral surface of the catch body 30. Has.

As shown in FIG. 2, when the insertion portion 42 of the keeper 40 is disengaged from between the pair of balls 51a and 51b, the door 22 is allowed to move with respect to the main body 21, while the keeper is allowed to move as shown in FIG. When the insertion portion 42 of the 40 is located between the pair of balls 51a and 51b, the movement of the door 22 is restricted with respect to the main body 21.

According to the catch device 10, the catch body 30 has one end portion 61a of the pair of balls 51a and 51b in contact with the opposite peripheral surface of the opposite peripheral surface of one ball and the other end portion 61a of the pair of balls 51a and 51b. It has a leaf spring 60 having an other end portion 61b that contacts the peripheral surface on the opposite side of the opposite peripheral surface of the ball, and the urging force of one leaf spring 60 causes the pair of balls 51a and 51b to approach each other. Since it is urged, the number of parts can be reduced and the size of the lateral X can be reduced.

In addition, engaging means 70a and 70b having a pair of engaging holes 72a and 72b and a pair of engaging claws 71a and 71b are located between the catch body 30 and the leaf spring 60, and the engaging means 70a , 70b force the leaf spring 60 so that the one end 61a and the other end 61b are separated from each other while bringing the one end 61a and the other end 61b of the leaf spring 60 into contact with the pair of engaging claws 71a and 71b, respectively. When the engaging holes 72a, 72b and the engaging claws 71a, 71b are engaged with each other, the inclined surfaces 73a, 73b in which the engaging claws 71a, 71b have an ascending slope with respect to the one end portion 61a and the other end portion 61b. Have. Therefore, at the time of assembly, the leaf spring 60 is forced to separate the one end 61a and the other end 61b while bringing the one end 61a and the other end 61b into contact with the inclined surfaces 73a and 73b of the engaging claws 71a and 71b. In addition, since the engaging holes 72a and 72b are engaged with the engaging claws 71a and 71b, the engaging holes 72a and 72b can be easily engaged with the engaging claws 71a and 71b. At the time of disassembly, a force must be applied to the leaf spring 60 so that the one end 61a and the other end 61b are separated from each other so that the engaging holes 72a and 72b get over the inclined surfaces 73a and 73b. It is possible to prevent the leaf spring 60 from coming off from 30.

Further, the catch body 30 has a side wall portion having a first support portion 32a for supporting one ball in the pair of balls 51a and 51b and a second support portion 32b for supporting the other ball in the pair of balls 51a and 51b. 32, and a top wall portion 31 adjacent to the first wall, and since the top wall portion 31 has a mounting hole for mounting the catch body 30 inside surrounded by the side wall portion 32, the catch body 30 is provided. It can be made smaller.

In addition, the outer peripheral surface of the side wall portion 32 of the catch body 30 has a concave groove 35 into which the leaf spring 60 is fitted, and the engaging claws 71a and 71b are located in the concave groove 35 and are engaged with the inside of the concave groove 35. The claws 71a and 71b are located, and the engaging claws 71a and 71b do not protrude from the outer peripheral surface of the side wall portion 32. Therefore, it is possible to prevent the engaging claws 71a and 71b from hitting the foreign matter inside the housing 20 and prevent the engaging claws 71a and 71b from being damaged. Further, when the leaf spring 60 is attached to the catch body 30, the leaf spring 60 and the engaging claws 71a and 71b do not protrude from the outer peripheral surface of the catch body 30, so that the main body 21 and the door 22 are either one of them. A recess in which the catch body 30 fits may be formed, and the catch body 30 may be attached to the recess.

Further, in the catch device disclosed in Non-Patent Document 1, as shown in FIG. 7, the holding force between the pair of balls 51a and 51b with respect to the insertion portion changes depending on the position of the screw cap with respect to the catch body 2. There is a problem that the holding force between the pair of balls 51a and 51b with respect to the insertion portion is not constant. However, in the cap device according to the present invention, since the holding force between the pair of balls 51a and 51b with respect to the insertion portion can be set by the leaf spring 60, the holding force between the pair of balls 51a and 51b with respect to the insertion portion is made constant. Can be done. Moreover, by changing the plate thickness of the leaf spring 60, it is possible to change the holding force between the pair of balls 51a and 51b with respect to the insertion portion.

In the above-described embodiment, the catch main body 30 has the engaging claws 71a and 71b, and the leaf spring 60 has the engaging holes 72a and 72b. However, the present invention is not limited to this, and the catch body 30 may have bottomed engaging holes 72a and 72b, while the leaf spring 60 may have engaging claws 71a and 71b.

The present invention described so far can be arranged at least as follows.
Catch in the catch device 10 including the horizontal direction X, the vertical direction Y, the thickness direction Z, the keeper 40, and the catch body 30 that sandwiches the insertion portion 42 of the keeper 40 between the pair of balls 51a and 51b so that the balls can be inserted and removed. The main body 30 supports the pair of balls 51a and 51b so that the separation dimensions can be changed, and the catch main body 30 is one end portion of the pair of balls 51a and 51b that comes into contact with the peripheral surfaces of the pair of balls 51a and 51b that are opposite to each other. One leaf spring 60 has a leaf spring 60 which is a urging means having a 61a and an other end portion 61b of a pair of balls 51a, 51b that contacts the peripheral surface of the other ball on the opposite side of the opposite peripheral surface. The pair of balls 51a and 51b are urged in a direction close to each other by the urging force of.

In addition, the present invention has at least the following embodiments.
(1) Engaging means 70a, 70b having a pair of engaging holes 72a, 72b and a pair of engaging claws 71a, 71b are located between the catch body 30 and the leaf spring 60 which is an urging means. The engaging means 70a and 70b bring the one end 61a and the other end 61b of the leaf spring 60 into contact with the pair of engaging claws 71a and 71b, respectively, so that the one end 61a and the other end 61b are separated from each other. When a force is applied to the leaf spring 60 to engage the engaging holes 72a and 72b with the engaging claws 71a and 71b, the engaging claws 71a and 71b have an upward slope with respect to the one end 61a and the other end 61b. It has inclined surfaces 73a and 73b.
(2) The catch body and the keeper are attached to a housing having a first wall which is one of a fixed wall and a movable wall with respect to the fixed wall, and a second wall which is the other, and the catch body 30 is a pair of balls. A side wall 32 having a first support 32a for supporting one ball in 51a and 51b and a second support 32b for supporting the other ball in the pair of balls 51a and 51b, and a sky adjacent to the first wall. It has a wall portion 31, and the top wall portion 31 has mounting holes 30a and 30b for mounting the catch body 30 inside surrounded by the side wall portion 32.
(3) The outer peripheral surface of the side wall portion 32 of the catch body 30 has a concave groove 35 into which the leaf spring 60 as an urging means is fitted, and the engaging claws 71a and 71b and the engaging holes 72a and 72b are formed in the concave groove 35. One of them is located, and the engaging claws 71a and 71b are located inside the concave groove 35.
(4) In the catch device 10, when the insertion portion 42 of the keeper 40 is disengaged from between the pair of balls 51a and 51b, the door 22 is allowed to move with respect to the main body 21, while the insertion portion 42 of the keeper 40 is allowed to move. When located between the pair of balls 51a and 51b, the movement of the door 22 is restricted with respect to the main body 21.

10 Catch device 20 Housing 21 Main body (fixed wall)
22 Door (movable wall)
30 Catch body 30a Through hole (mounting hole)
30b Through hole (mounting hole)
31 Top wall 32 Side wall 32a 1st support 32b 2nd support 35 Concave groove 40 Keeper 42 Insertion 51a Ball 51b Ball 60 Leaf spring (biasing means)
61a One end 61b The other end 70a Engagement means 70b Engagement means 71a Engagement claw 71b Engagement claw 72a Engagement hole 72b Engagement hole 73a Inclined surface 73b Inclined surface X Horizontal direction Y Vertical direction Z Thickness direction

Claims (3)

In a catching device including a keeper and a catch body that inserts and removes the insertion portion of the keeper between a pair of balls in the horizontal direction, the vertical direction, and the thickness direction.
The catch body supports the pair of balls so that the separation dimension can be changed.
The catch body contacts one end of the pair of balls that contacts the opposite peripheral surface of one ball and the peripheral surface of the pair of balls that contacts the opposite peripheral surface of the other ball. It has an urging means having the other end portion, and the pair of balls are urged in a direction close to each other by the urging force of one of the urging means .
Further, it has an engaging means for engaging the urging means with the catch body.
The engaging means is
A pair of engaging holes provided in one of the catch body and the urging means, and a pair of engaging claws provided in the other.
While bringing the pair of engaging claws into contact with the catch body or the urging means, a force is applied to the urging means so that one end and the other end of the urging means are separated from each other. When the hole is engaged with the engaging claw, an inclined surface in which the engaging claw has an upward slope with respect to the catch body or the urging means.
A catching device characterized by having. The catch body and the keeper are attached to a housing having a first wall which is one of a fixed wall and a movable wall with respect to the fixed wall, and a second wall which is the other.
The catch body is adjacent to a side wall portion having a first support portion for supporting one ball in the pair of balls and a second support portion for supporting the other ball in the pair of balls, and the first wall. It has a top wall and
The catch device according to claim 1, wherein the top wall portion has a mounting hole for mounting the catch body on the inside surrounded by the side wall portion. The outer peripheral surface of the side wall portion of the catch body has a concave groove into which the urging means fits.
Either the engaging claw or the engaging hole is located in the concave groove,
The catch device according to claim 2 , wherein the engaging claw is located inside the concave groove.

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