JP7270965B2 - locking fixture - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking fixture that is inserted and fixed into a slit formed in a support member such as a channel steel material having a U-shaped cross section or an L-shaped cross section.

As a method for supporting shelf boards for displaying products, a method using dowels (mounting members), which are short cylindrical members, is known. As a method of supporting with such dowels, for example, a method is known in which dowels are screwed or inserted into screw holes or round holes formed in a pillar or wall, and a shelf board is placed on the dowels. Also known is a method of attaching a cylindrical dowel to a claw-like fixing member inserted and fixed in a slit of a channel steel material having a U-shaped cross section or an L-shaped cross section by screwing.

Japanese Patent No. 4721795 (Japanese Patent Application Laid-Open No. 2007-24127) describes a main body having a claw portion 12 which is formed in a substantially L shape and which is connected to a horizontal portion 11 and inserted into a slit provided in a support member. The claw portion 12 has an upper engaging portion 12a on the upper side of the horizontal portion 11 and a lower engaging portion 12b on the lower side of the horizontal portion 11. The upper engaging portion 12a is provided with a protruding portion 13 protruding toward the horizontal portion 11. At the intersection of the protruding portion 3, the lower engaging portion 12b, and the horizontal portion 11, the slit and A claw-shaped fixing member 100 is disclosed in which a contact portion having a vertical length substantially equal to the length of the contact portion is formed (claim 1).

According to the claw-shaped fixing member 100, the claw portion is inserted into the slit, and the contact portion is provided with a length substantially equal to the length in the vertical direction of the slit. By making contact, it is possible to reliably prevent the main body from coming off the slit. Further, the abutting portion can prevent the main body from coming off the slit even if the main body is inserted into the slit upside down.

Japanese Patent No. 4721795 (Claim 1)

However, although this claw-shaped fixing member is intended to sandwich and fix the support member (supporting member) between the claw portion and the mounting member, it is fixed face-to-face. deviation may occur. Moreover, the projecting portion projecting from the upper engaging portion toward the horizontal member has a dimension corresponding to the vertical dimension of the slit, and the claw-shaped fixing member can only be used for slits of a specific dimension. Further, the upper engaging portion has a step due to the formation of the projecting portion, and when the operator attaches the claw-shaped fixing member to the support member, the step is brought into contact with the end of the slit and fixed. There is also a problem that an installation error occurs.

Accordingly, an object of the present invention is to enable strong fixing to a supporting member such as a steel material without slippage when fixing by screwing, and to be able to correspond to slits having different vertical dimensions and to prevent mounting errors from occurring. To provide a pawl-shaped locking fixture that does not have a

That is, the present invention is intended to solve the above-described conventional problems, and includes a plate-like locking claw portion extending in the vertical direction and inserted into a slit attached to a fixed side support member, and the locking claw portion. and a mounting member attached to the horizontal support portion. A second locking claw portion is provided below the horizontal support portion of the locking claw portion, and the locking side surface of the first locking claw portion on the side of the horizontal support portion is upward and anti-horizontal support. The inclined surface is in contact with the upper inner corner of the slit, and the second locking claw portion is in contact with the inner wall surface of the support member or the lower inner angle of the slit. A locking fixture is provided which is secured to the support member by means of a lever.

Further, according to the present invention, the vertical length (L ₁ ) of the first locking claw portion is greater than the vertical length (L ₂ ) of the second locking claw portion, and the inclined surface is the second locking claw portion. The present invention provides the locking fixture characterized in that it is formed at a length of (L ₁ /2) or more from the tip of one locking claw.

In addition, the present invention provides the locking fixture, wherein the horizontal support portion is provided with a male screw, and the mounting member is provided with a female screw that engages with the male screw. .

Further, the present invention provides the locking fixture, wherein the side surface of the first locking claw portion on the side opposite to the horizontal support portion has an inclined surface that slopes upward toward the horizontal support portion. It is.

Further, the present invention provides the locking fixture, wherein the first locking claw portion is tapered upward and has a rounded tip when viewed from the side.

Further, the present invention provides the locking fixture, wherein the mounting member is a columnar dowel.

According to the present invention, when fixing to a support member such as steel, the inclined surface of the locking side surface of the first locking claw contacts the inner corner of the slit, and the second locking claw contacts the inner wall surface of the steel. Alternatively, since it abuts on the inner corner of the slit, the upper and lower fixing positions are uniquely determined, and there is no misalignment during screwing. Therefore, mounting errors do not occur. In addition, since the inclined surface of the first locking claw abuts on the inner corner of the slit in line contact, strong fixation can be realized. Also, the inner corners of the slit may abut any slanted surface, which can be used for slits having various longitudinal dimensions.

It is a locking fixture perspective view in embodiment of this invention. 2 is a side view of a locking body portion of the locking fixture of FIG. 1; FIG. FIG. 3 is a rear view (opposite to the horizontal support portion side) of the locking main body portion of FIG. 2 ; 2 is a cross-sectional view of an attachment member used in the locking fixture of FIG. 1; FIG. 1. It is a figure explaining the method of attaching the locking fixture of FIG. 1 to a support member. FIG. 6 is a diagram illustrating a method of attaching the locking fixture of FIG. 1 to a support member, and is a process following FIG. 5 ; FIG. 7 is a diagram illustrating a method of attaching the locking fixture of FIG. 1 to a support member, and is a step following FIG. 6 ; It is the figure which looked at the slit of the support member from the opening side (front side). FIG. 2 is a side view of a conventional locking fixture;

Next, locking fixtures according to embodiments of the present invention will be described with reference to FIGS. 1 to 4. FIG. In this specification, the terms "upper and lower" and "side" refer to directions or positions with respect to the opening of the slit of the support member when the locking fixture is attached. The locking fixture 20 of this example has a locking main body 10 having a plate-shaped locking claw 1 and a horizontal support 2 , and an attachment member 3 attached to the horizontal support 2 . The vertical length of the locking claw portion 1 is 16 to 18 mm.

As shown in FIG. 3, the locking main body 10 is formed by punching a steel plate of about 2.5 to 3.5 mm, for example. Including the intersection of both, the side view is L-shaped.

In the locking body portion 10, the locking claw portion 1 is inserted into a slit 51 attached to the support member 5 on the fixed side. The second locking claw portion 12 is located below the horizontal support portion 2, and the locking side surface 14 of the first locking claw portion 11 on the side of the horizontal support portion 2 is an inclined surface that is inclined upward and toward the opposite side of the horizontal support portion 2. 111 , the inclined surface 111 abuts the upper internal corner 53 a of the slit 51 .

In this example, the inclined surface 111 of the first locking claw portion 11 is formed from an inner angle 141 between the first locking claw portion 11 and the horizontal support portion 2 toward the tip. That is, the inclined surface 111 is formed entirely on the side of the horizontal support portion of the first locking claw portion 11 . The inclined surface 111 has a slightly convex inclination toward the horizontal support portion when viewed from the side, and preferably has an arc shape with a radius of 40 to 50 mm, particularly 45 mm, and an arc length of 11 mm. If the radius of the circular arc shape is too small, the length of the locking pawl portion 1 in the front-rear direction (the width dimension when viewed from the side) becomes large, and it may not be possible to use it for the support member 5 on the fixed side with the small depth dimension D. If the radius of the arc shape is too large to be close to a straight line, the effects of the present invention cannot be exhibited. A side surface 16 of the first locking claw portion 11 on the side opposite to the horizontal support portion 2 has an inclined surface that slopes upward and toward the horizontal support portion 2 side.

The inclined surface 112 is an inclined surface having a slightly convex inclination toward the anti-horizontal support side when viewed from the side, and preferably has an arc shape with a radius of 70 to 90 mm, particularly 80 mm, and an arc length of 17 mm. If the radius of the circular arc is too small, the wall surface (not shown) to which the support member 5 is fixed when the first locking claw portion 11 is inserted into the slit 51 in the case of the support member 5 on the fixed side having a small depth dimension D. ), which is not desirable. Note that the inclined surface 112 is an optional component in the present invention, and the side surface 16 of the first locking claw portion 11 on the side opposite to the horizontal support portion 2 may be linear (vertical) in a side view. good.

In the locking main body 10, the first locking claw 11 is tapered and has a rounded tip 13 in a side view, as shown in FIG. As a result, the first locking claw portion 11 can be easily inserted into the slit 51 , and after being inserted into the slit 51 , can be locked to the upper inner corner 53 a of the slit 51 . The vertical length of the first locking claw portion 11 is approximately 17 mm.

In the locking body portion 10 , the second locking claw portion 12 extends downward from the end portion of the horizontal support portion 2 of the locking claw portion 1 on the support member side. Also, the vertical length (L ₂ ) of the second locking claw portion is smaller than the vertical length (L ₁ ) of the first locking claw portion. As a result, the locking claw portion 1 can be easily inserted into the slit 51 . In addition, the side surface 15 of the second locking claw portion 12 on the side of the horizontal support portion 2 or the inner angle 151 between the second locking claw portion 12 and the horizontal support portion 2 is the inner wall surface 52b of the support member 5 in which the slit 51 is formed. Alternatively, it comes into contact with the lower inner corner 53b of the slit 51 . A side surface 15 of the second locking claw portion 12 is linear in a side view. Further, in a state where the locking main body portion 10 is fixed to the support member 5, the first locking portion 10 is located on the upward extension line of the side surface 15 of the second locking claw portion 12 (on X ₁ -X ₁ in FIG. 2). The inclined surface 111 of the retaining claw portion 11 is positioned. As a result, the inclined surface 111 of the first locking claw portion 11 abuts the inner corner 53 above the slit 51 , and the second locking claw portion 12 abuts the inner wall surface 52 b of the steel member 5 below the slit 51 . In addition, in a state where the locking main body portion 10 is fixed to the support member 5, the side surface 15 of the second locking claw portion 12 is formed by the first locking claw portion 11 and the horizontal support portion 2 in a side view. It is located on the anti-horizontal support side from the internal angle 141 . The vertical length (L ₁ ) and the vertical length (L ₂ ) refer to vertical lengths of the horizontal support portion 2 in the horizontal state.

In the locking body portion 10, the horizontal support portion 2 is a plate-like body to which the mounting member 3 extending from the locking claw portion 1 in the direction opposite to the supporting member is mounted. The length of the horizontal support portion 2 in the front-rear direction is the length (for example, 15 to 17 mm) for attaching the mounting member 3, and the height in the vertical direction is sufficient to support the mounting member 3 such as a cylindrical dowel. Yes, for example 5-6 mm. A male screw 21 is attached to the horizontal support portion 2 . The male thread 21 is screwed into a female thread 32 formed on the mounting member 3 .

In the present invention, locking fixture 20 has locking body 10 and mounting member 3, as shown in FIG. The mounting member 3 is, for example, a columnar dowel shown in FIG. The columnar dowel 4 is provided with a female thread 32 that engages with the male thread 21 attached to the horizontal support portion 2 of the locking fixture 20 .

Thus, the locking fixture 20 is obtained by screwing the cylindrical dowel 3 into the horizontal support part 2 of the locking main body 10 , and this locking fixture 20 is attached to the support member 5 having the slit 51 .

In the present invention, the support member 5 may be a channel (groove) steel material or a pipe steel material having a U-shaped cross section, an H-shaped cross section, or an L-shaped cross section having a slit 5 . A large number of slits 5 are formed at a predetermined pitch in the vertical direction of such a steel material. For example, as shown in FIG. be done. Such a support member 5 is fixed to the wall surface with screws or the like, for example. As shown in FIGS. 5 to 8, in the steel material 5 in which the slit 51 is formed, the upper inner angle 53a of the slit 51, the lower inner angle 53b of the slit 51, and the inner wall surface 52b of the steel material below the slit 51 are the locking claw portion 1. It becomes the locking part.

Next, a method of attaching the cylindrical dowel 3 using the locking fixture 20 will be described with reference to FIGS. 5 to 7. FIG. First, the locking fixture 20 is assembled. The locking fixture 20 is obtained by attaching the cylindrical dowel 3 to the horizontal support portion 2 of the locking main body 10 by screwing. At this time, the cylindrical dowel 3 is not screwed to the horizontal support portion 2 of the locking body portion 10 to the end, but is stopped halfway.

Next, as shown in FIG. 5, the locking fixture 20 is inserted into the slit 51 with the first locking claw portion 11 of the locking claw portion 1 directed upward from the position where the tip of the locking claw portion 1 faces obliquely upward. insert. Next, as shown in FIG. 6, the locking claw portion 1 is rotated within the slit 51 so that the first locking claw portion 11 is erected within the slit 51. The horizontal support portion 2 and the inner corner 151 of the second locking claw portion 12 are brought into contact with each other, and the inclined surface 111 of the first locking claw portion 11 is brought into contact with the upper inner corner 53 a of the slit 51 . to install. This positioning can be done only by bringing the inner corner 53b of the slit 51 into contact with the inner corner 151 of the horizontal support portion 2 and the second locking claw portion 12, and the position is uniquely determined. Therefore, there is no mispositioning unlike the conventional locking fixing member (locking fixture). In addition, the inner corner 53a of the slit 51 abuts on any inclined surface 111, and it can be used for slits having various longitudinal dimensions, and the range of use of the locking fixture 20 of the present invention is as follows. spreads.

Next, the cylindrical dowel 3 is screwed in until it almost hits the surface of the steel material. At this stage, there is a possibility that the locking fixture 20 is displaced upward with respect to the steel material 5, so the locking fixture 20 is pushed downward again, and the horizontal support part 2 and the inner angle 151 of the second locking claw portion 12 are brought into contact with each other. Next, the columnar dowel 3 is further screwed in, so that the end face of the columnar dowel 3 strongly abuts the surface of the steel material 5 . As a result, the steel material 5 is sandwiched between the locking claw portion 1 and the columnar dowel 3 , and the locking fixture 20 can be firmly fixed to the slit 51 . That is, since the inclined surface 111 of the first locking claw portion 11 abuts on the inner corner 53a of the slit 51 in a line contact manner, the tightening force generates two component forces in the horizontal direction and the vertical direction (downward direction). , stronger tightening is possible compared to the tightening force due to surface-to-surface contact.

In the present invention, the locking fixtures 20 are attached to the same height level slits 51 of the steel material at the four corners, and the shelf members are placed on the columnar dowels 3 at the four corners to form a display surface. The locking fixtures 20 are not limited to the four corners, and may be attached to a pair of left and right steel materials in the rear or front, and may be supported in the front or rear by other support means. If necessary, a resin sleeve or the like may be attached to the cylindrical dowel 3, and a shelf member such as a glass plate may be placed thereon.

The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, in the locking claw portion 1, the vertical lengths of the first locking claw portion 11 and the second locking claw portion 12 may be the same. Moreover, as shown in FIG. Including those that are partly sloped. In addition, the inclined surface 111 may be formed in a portion having a length of at least (L ₁ /2) or more downward from the tip 13 of the first locking claw portion 11. For example, the first locking claw portion 11 has a length of approximately (3L _1/4 ) from the tip 13 and is inclined upward from the connection point between the horizontal support portion 2 and the first locking claw portion 11 (L _1/4 ). , may be an inclined surface with a gentler inclination than the inclined surface 111, or may be a linear (vertical) surface. Further, in the present invention, the inclined surface 111 is not limited to an inclined surface (arc surface) that is slightly convex toward the horizontal support portion, and may be an inclined surface that is linearly inclined when viewed from the side. Also, the locking fixture 20 may be attached upside down with respect to the slit 51 of the steel material 5 .

According to the present invention, when the locking fixture is attached to the support member, the upper and lower fixing positions are uniquely determined, and no deviation occurs during screwing. Therefore, mounting errors do not occur. In addition, since the inclined surface of the first locking claw abuts the inner corner of the slit in line contact, strong fixation can be realized. Also, the inner corners of the slit may abut any slanted surface, which can be used for slits having various longitudinal dimensions.

Claims (6)

An engaging main body portion comprising a vertically extending plate-shaped engaging claw portion inserted into a slit attached to a fixed support member, and a horizontal support portion extending from the engaging claw portion in the direction opposite to the supporting member. and,
a mounting member attached to the horizontal support portion by screwing ;
The locking main body is fixed to the support member by screwing the mounting member,
Above the horizontal support portion of the locking claw portion is a first locking claw portion, and below the horizontal supporting portion of the locking claw portion is a second locking claw portion,
a locking side surface of the first locking pawl on the side of the horizontal support portion has an inclined surface that slopes upward and toward the side opposite to the horizontal support portion;
The locking side surface of the second locking claw portion on the side of the horizontal support portion is linear in a side view, and when the locking body portion is fixed to the supporting member, the second locking claw portion The inclined surface of the first locking pawl portion is positioned on an upward extension line of the locking side surface,
The locking fixture, wherein the inclined surface abuts an upper inner corner of the slit, and the second locking pawl abuts an inner wall surface of the supporting member to be fixed to the supporting member. The vertical length (L1) of the first locking claw is greater than the vertical length (L2) of the second locking claw, and the inclined surface extends from the tip of the first locking claw. 2. The locking fixture according to claim 1, wherein the locking fixture is formed in a portion having a length of (L1/2) or longer. 3. The locking fixture according to claim 1, wherein said horizontal support portion is provided with a male thread, and said mounting member is provided with a female thread that engages with said male thread. 4. The latch according to any one of claims 1 to 3, wherein the side surface of the first locking claw portion on the side opposite to the horizontal support portion has an inclined surface that slopes upward toward the horizontal support portion. stop fixture. 5. The locking fixture according to claim 4, wherein the first locking claw portion tapers upward and has a rounded tip as viewed from the side. The locking fixture according to any one of claims 1 to 5, wherein the mounting member is a cylindrical dowel.

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