Locking device and locking system

Abstract

To disclose one example of a lock device capable of fixing an article to a floor, wall or the like, which can suppress an article from rattling significantly during fixing.SOLUTION: A lock device comprises a contact part 24 that is arranged on an opposite side of a locking protrusion part 22 across a locking wire 11 with an insertion part 25 inserted into a gap 13, where the contact part 24 contacts the locking wire 11 from an insertion direction. The locking protrusion part 22 can contact the locking wire 11 from the insertion direction by being displaced relative to a swing arm 21. In the lock device 20, the locking wire 11 is sandwiched between the locking protrusion part 22 and the contact part 24, making it possible to suppress rattling.SELECTED DRAWING: Figure 8

Description

Technical Field

[0001] The present disclosure relates to a locking device capable of fixing an article to a floor, a wall, or the like.

Background Art

[0002] For example, in the trolley shown in Patent Document 1, an article placed on the trolley cannot be fixed to a floor, a wall, or the like.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The present disclosure discloses an example of a locking device that can fix an article, a trolley, or the like to a floor, a wall, or the like and can suppress significant rattling of the article during fixation.

Means for Solving the Problems

[0005] A locking device disposed at a position separated from a fixing portion (12) and capable of locking to the fixing portion (12) preferably includes at least one of the following constituent elements.

[0006] In other words, the constituent elements include an insertion part (25) inserted into the gap (13) between the locking wire (11) and the fixing part (12), a swing arm (21) located on the opposite side of the locking wire (11) from the insertion part (25) when the insertion part (25) is inserted into the gap (13), the swing arm (21) extending in a direction parallel to the insertion direction of the insertion part (25) and swinging in a direction such that the tip end in the extending direction approaches or moves away from the insertion part (25), and a locking projection (22) provided on the tip end of the swing arm (21) and projecting toward the insertion part (25), which is displaceable in a direction parallel to the extending direction of the swing arm (21). The device comprises a locking projection (22), a shaft portion (23) positioned on the opposite side of the locking projection (22) with respect to the locking wire (11) when the insertion portion (25) is inserted into the gap (13), the shaft portion (23) supporting the swing arm (21) so as to be swingable, and a contact portion (24) positioned on the opposite side of the locking projection (22) with respect to the locking wire (11) when the insertion portion (25) is inserted into the gap (13), the contact portion (24) contacting the locking wire (11) from the insertion direction, wherein the locking projection (22) can contact the locking wire (11) from the insertion direction by being displaced relative to the swing arm (21).

[0007] As a result, in the locking device (1), the locking wire (11) is held between the locking projection (22) and the contact portion (24). The locking projection (22) can then be displaced relative to the swinging arm (21) to contact the locking wire (11) from the insertion direction. Therefore, the locking wire (11) is securely held between the locking projection (22) and the contact portion (24), and rattling can be suppressed.

[0008] The locking device (1) may also have the following configuration. In other words, it is desirable that the tip end of the locking projection (22) is provided with a tapered portion (22D) that protrudes toward the contact portion (24). As a result, the tapered portion (22D) is locked to the locking wire (11), so that the tip end of the swinging arm (21) is prevented from swinging toward the insertion portion (25). Consequently, rattling can be reliably suppressed.

[0009] In this configuration, it is desirable that the insertion portion (25) is provided with a groove (25H) into which the tapered portion (22D) can be fitted. Furthermore, the swinging arm (21) is provided with a contact portion (21A) that can contact the locking wire (11), and it is desirable that the contact portion (21A) contacts the locking wire (11) from the opposite side of the insertion portion (25) when the insertion portion (25) is inserted into the gap (13), with the locking wire (11) in between.

[0010] As a result, in the direction intersecting the extension direction of the swing arm (21), the locking wire (11) is sandwiched between the swing arm (21), that is, the contact portion (21A) and the insertion portion (25), and in the extension direction, it is sandwiched between the locking projection (22) and the contact portion (24). Therefore, the occurrence of rattle can be reliably suppressed.

[0011] Incidentally, the symbols in each of the parentheses above are just examples showing the correspondence with the specific configurations etc. described in the embodiments described later, and this disclosure is not limited to the specific configurations etc. indicated by the symbols in the parentheses above. [Brief explanation of the drawing]

[0012] [Figure 1] This is a diagram showing the usage state of the locking device according to the first embodiment. [Figure 2] This is a diagram showing the locking wire. [Figure 3] This is a diagram showing a locking device according to the first embodiment. [Figure 4] This is an exploded view of the locking device according to the first embodiment. [Figure 5] It is an explanatory diagram of the usage state of the lock device according to the first embodiment. [Figure 6] It is an explanatory diagram of the usage state of the lock device according to the first embodiment. [Figure 7] It is a diagram showing the lock device according to the first embodiment. [Figure 8] It is a diagram showing the structure of the lock device according to the first embodiment. [Figure 9] It is a diagram showing the structure of the lock device according to the first embodiment.

MODE FOR CARRYING OUT THE INVENTION

[0013] The following "Embodiments of the Invention" show an example of embodiments belonging to the technical scope of the present disclosure. That is, the invention specific matters described in the claims are not limited to the specific configurations and structures shown in the following embodiments.

[0014] As shown in FIG. 1, this embodiment is an example in which the lock device and the lock system according to the present disclosure are applied to the lock system 1 using the stud fitting 10. As shown in FIG. 2, the stud fitting 10 is an example of an attachment used in the fixing rail 2.

[0015] The stud fitting 10 has a locking wire 11, an engaging portion 12, and the like. The locking wire 11 is a member that is disposed at a position separated from the engaging portion 12 and fixed to the engaging portion 12.

[0016] Specifically, the locking wire 11 is a rod-shaped member extending in a direction parallel to the fixing rail 2. Connecting portions 11A and 11B for connecting the locking wire 11 to the engaging portion 12 are provided at one end side and the other end side in the longitudinal direction of the locking wire 11.

[0017] The engaging portion 12 is an example of a fixing portion that connects and fixes the locking wire 11 to the fixing rail 2. The engaging portion 12 can switch between a state where it is immovable with respect to the fixing rail 2 and a state where it is movable.

[0018] Note that the arrows, slashes, etc. indicating directions attached to the following figures are described to facilitate understanding of the relationships between the figures and the shapes of members or parts. Therefore, the locking system 1 is not limited to the directions attached to the figures.

[0019] At least the members or parts described with reference numerals are provided with at least one, unless otherwise stated such as "one". The locking system 1 shown in the present disclosure includes at least one of the components such as the members or parts described with reference numerals, and at least one of the illustrated structural parts.

[0020] (First Embodiment) <1. Overview of the Locking System> As shown in FIG. 1, the locking system 1 according to the present embodiment is applied to a fixing structure for fixing the fixing rail 2 to a vehicle such as a car and fixing the article 3 to the fixing rail 2. That is, the locking system 1 is a fixing structure for fixing the article 3 to the vehicle.

[0021] The article 3 according to the present embodiment is integrated with a cart having wheels such as casters. For this reason, the fixing rail 2 shown in FIG. 1 is buried and fixed in the floor of the vehicle. Incidentally, the fixing rail 2 according to the present embodiment is, for example, an airline rail (registered trademark).

[0022] <2. Locking System (Particularly, Configuration of the Locking Device)> As shown in FIG. 3, the locking system 1 includes a stud fitting 10, a locking device 20, and the like. As shown in FIG. 4, the locking device 20 includes at least a swing arm 21, a locking projection 22, a shaft portion 23, an insertion portion 25, and the like.

[0023] <Insertion section> The insertion portion 25 is the part that is inserted into the gap 13 (see Figure 2) between the locking wire 11 and the engaging portion 12 (see Figure 3). As shown in Figure 4, the insertion portion 25 is composed of an insertion body portion 25A, a bracket 25B, a slider 25C, and the like.

[0024] The insertion body portion 25A is a resin block. A tapered portion 25D is provided on the insertion-direction end side (right side in Figure 4) of the insertion body portion 25A. The bracket 25B is a metal component and is a mounting portion for fixing the insertion portion 25 to the lower surface of the article 3.

[0025] The "insertion direction" refers to the direction in which the insertion part 25 moves when it is inserted into the gap 13 (the direction of the arrow in Figure 7). Therefore, in Figure 4, the insertion direction tip side of the insertion body 25A is the right end side of the insertion body 25A.

[0026] The slider 25C is the part that slides into contact with the upper surface 12A (see Figure 2) of the engaging portion 12 when the insertion portion 25 is inserted into the gap 13. For this reason, a tapered portion 25E is provided on the tip side of the slider 25C in the insertion direction, and is inclined in the opposite direction to the tapered portion 25D.

[0027] In other words, the tip end of the insertion portion 25 in the insertion direction is configured with a wedge-shaped tapered portion, consisting of tapered portions 25D and 25E, such that the cross-sectional area of ​​the insertion portion 25 decreases towards the tip. The insertion body portion 25A and the slider 25C are fastened to each other with screws 25F while the bracket 25B is sandwiched between them.

[0028] The insertion body portion 25A is provided with a contact portion 24, as shown in Figure 4. The contact portion 24 is located on the opposite side of the locking projection 22 from the locking wire 11 when the insertion portion 25 is inserted into the gap 13 (see Figure 7).

[0029] The contact portion 24 then contacts the locking wire 11 from the retraction side in the insertion direction. That is, in Figure 7, the insertion direction is from left to right on the page. Therefore, the contact portion 24 contacts the locking wire 11 from the left side of the page, and the locking projection 22 contacts the locking wire 11 from the right side of the page.

[0030] <Oscillating arm and shaft> As shown in Figure 3, the swing arm 21 is a member located on the opposite side of the locking wire 11 from the insertion portion 25 when the insertion portion 25 is inserted into the gap 13. The swing arm 21 extends in a direction parallel to the insertion direction and can swing in a direction (up and down in Figure 3) so that its tip in the extending direction approaches or moves away from the insertion portion 25.

[0031] Specifically, the shaft portion 23 is a shaft that supports the swing arm 21 so that it can swing. When the insertion portion 25 is inserted into the gap 13, the shaft portion 23 is positioned on the opposite side of the locking projection 22 with respect to the locking wire 11, and on the opposite side of the locking projection 22 with respect to the contact portion 24.

[0032] Therefore, the swinging arm 21 can swing in a direction such that its extension end approaches or moves away from the insertion portion 25. The locking device 20 is provided with a spring 23C, as shown in Figure 4. The spring 23C exerts an elastic force that brings the extension end of the swinging arm 21 closer to the insertion portion 25.

[0033] Incidentally, the shaft portion 23 is inserted into the shaft hole 25G of the bracket 25B. A flange portion 23A is provided on one longitudinal end of the shaft portion 23 to prevent it from coming loose. An E-type retaining ring 23B is attached to the other longitudinal end of the shaft portion 23 to prevent it from coming loose.

[0034] As shown in Figure 3, the swinging arm 21 is provided with a contact portion 21A that can contact the locking wire 11. When the insertion portion 25 is inserted into the gap 13, the contact portion 21A contacts the locking wire 11 from the opposite side of the insertion portion 25, with the locking wire 11 in between.

[0035] Specifically, for example in Figure 7, the contact portion 21A contacts the locking wire 11 from above, and the insertion portion 25 contacts the locking wire 11 from below. In other words, when the insertion portion 25 is inserted into the gap 13, the locking wire 11 is sandwiched between the insertion portion 25 and the contact portion 21A from above and below.

[0036] In this embodiment, the contact portion 21A is provided on both one end and the other end in the direction of the pivot axis. The direction of the pivot axis is the direction parallel to the axial direction of the shaft portion 23, or the direction parallel to the locking wire 11.

[0037] <Engaging protrusion> As shown in Figure 8, the locking projection 22 is provided on the tip side in the extension direction of the swing arm 21 and is a portion that protrudes toward the insertion portion 25. Therefore, in this embodiment, the swing arm 21 and the locking projection 22 constitute a "hook-shaped member".

[0038] The locking projection 22 is displaceable in the extension direction of the swinging arm 21 (in the direction of the arrow in Figure 8). By being displaced relative to the swinging arm 21, the locking projection 22 can come into contact with the locking wire 11 from the forward insertion side (right side of the paper in Figure 8).

[0039] Therefore, the locking wire 11 is sandwiched between the locking projection 22 and the contact portion 24 in the extending direction of the swinging arm 21 (see Figure 8). Figure 9 shows the state in which the locking projection 22 is separated from the locking wire 11.

[0040] Incidentally, in this embodiment, the locking projection 22 is displaced in conjunction with the rotation of the position adjustment bolt 22A. The spring 22B exerts an elastic force that moves the locking projection 22 away from the contact portion 24. The nut 22C restricts the maximum distance between the locking projection 22 and the contact portion 24.

[0041] A tapered portion 22D is provided at the tip end of the locking projection 22 in the direction of protrusion (the lower end of the locking projection 22 in Figure 9). The tapered portion 22D is a triangular portion that protrudes toward the contact portion 24, that is, toward the locking wire 11.

[0042] Furthermore, as shown in Figure 4, the insertion portion 25 (in this embodiment, the insertion body portion 25A) is provided with a groove portion 25H into which the tapered portion 22D can be fitted. Therefore, when the locking projection 22 is in contact with the locking wire 11, as shown in Figure 8, the tapered portion 22D contacts the locking wire 11 from the insertion portion 25 side.

[0043] Therefore, in the state where the locking projection 22 is in contact with the locking wire 11, that is, in Figure 8, the locking projection 22 is in contact with the right side of the locking wire 11, the contact portion 24 is in contact with the left side of the locking wire 11, the abutment portion 21A is in contact with the upper surface of the locking wire 11, the insertion portion 25 is in contact with the lower surface of the locking wire 11, and the tapered portion 22D is in contact with the lower right side of the locking wire 11.

[0044] In this embodiment, the locking projection 22 is provided on both the one end and the other end in the direction of the pivot axis. Furthermore, a tapered portion 22E is provided on the portion of each locking projection 22 that corresponds to the tip side in the extension direction of the pivot arm 21. The tapered portion 22E is an inclined portion that contacts the locking wire 11 when the insertion portion 25 is inserted into the gap 13.

[0045] <3. How to use the locking system and its characteristics> <3.1 How to use> The following describes how to use the locking system 1 when the locking device 20 is provided on the underside of a trolley (not shown) and the stud fitting 10, i.e., the locking wire 11, is provided on the floor.

[0046] The user moves the trolley so that the insertion part 25 enters the gap 13 (see Figure 5). At this time, when the tapered part 22E comes into contact with the locking wire 11, the tapered part 22E and the locking wire 11 slide into contact, causing the swinging arm 21 to swing upward from the plane of the paper so that it moves away from the insertion part 25, as shown in Figure 6.

[0047] As the trolley moves further from the state shown in Figure 6, the insertion part 25 enters the gap 13 and the contact part 24 approaches the locking wire 11. When the contact part 24 comes into contact with the locking wire 11, the trolley stops moving and the contact part 21A comes into contact with the locking wire 11 (see Figure 3).

[0048] Next, the user rotates the position adjustment bolt 22A until the locking projection 22 contacts the locking wire 11. This causes the locking wire 11 to be sandwiched between the contact portion 24 and the locking projection 22 (see Figure 3).

[0049] <3.2 Features of the locking device according to this embodiment> In the locking device 20 according to this embodiment, the locking wire 11 is held between the locking projection 22 and the contact portion 24. The locking projection 22 can contact the locking wire 11 from the insertion direction by being displaced relative to the swinging arm 21. Therefore, in the locking device 20, the locking wire 11 is securely held between the locking projection 22 and the contact portion 24, thus suppressing rattling.

[0050] A tapered portion 22D is provided at the tip end of the locking projection 22, projecting toward the contact portion 24. This allows the tapered portion 22D to lock onto the insertion portion 25 side of the locking wire 11. Therefore, the tip end of the swinging arm 21 is restricted from swinging away from the insertion portion 25, thus effectively suppressing rattle.

[0051] Furthermore, the insertion portion 25 is provided with a groove 25H into which the tapered portion 22D can be fitted. This ensures that the tapered portion 22D can be reliably brought into contact with the locking wire 11 from the insertion portion 25 side.

[0052] The contact portion 21A contacts the locking wire 11 from the opposite side of the insertion portion 25, with the locking wire 11 in between. As a result, in a direction intersecting the extension direction of the swing arm 21, the locking wire 11 is sandwiched between the swing arm 21, that is, the contact portion 21A and the insertion portion 25. Therefore, in the extension direction, the locking wire 11 is sandwiched between the locking projection 22 and the contact portion 24. Consequently, the occurrence of rattle can be reliably suppressed.

[0053] (Other embodiments) In the above-described embodiment, the locking wire 11 was fixed to the floor or the like via a fixing rail 2. However, this disclosure is not limited thereto. That is, the disclosure may also include a configuration in which the locking wire 11 is directly fixed to the floor or wall, for example.

[0054] The above-described embodiment was an example in which a locking device was applied to a trolley having wheels such as casters. However, this disclosure is not limited to this. That is, the disclosure may also include a configuration in which the locking device 20 is directly fixed to article 3, for example.

[0055] The insertion portion 25 according to the above embodiment had a resin slider 25C. However, this disclosure is not limited thereto. That is, the disclosure may also include, for example, a configuration in which the slider 25C is omitted.

[0056] In the above-described embodiment, the locking projection 22 was displaced in conjunction with the rotation of the position adjustment bolt 22A. However, the disclosure is not limited thereto. That is, the disclosure may, for example, replace the position adjustment bolt 22A with a rotating handle or a quick-reverse type lever for attaching and detaching a bicycle wheel.

[0057] In the embodiment described above, a tapered portion similar in shape to the tapered portion 22E was provided on the tip side in the extension direction of the swing arm 21. However, the disclosure is not limited thereto. That is, the disclosure may also include, for example, a configuration in which the similar tapered portion is eliminated.

[0058] In the embodiment described above, a triangular tapered portion 22D protruding toward the contact portion 24 was provided at the tip end of the locking projection 22 in the protruding direction. However, the disclosure is not limited thereto. That is, the disclosure may also include, for example, a configuration in which the tapered portion 22D is eliminated.

[0059] In the embodiment described above, the insertion portion 25 was provided with a groove 25H into which the tapered portion 22D could be fitted. However, the disclosure is not limited thereto. That is, the disclosure may also include, for example, a configuration in which the tapered portion 22D is eliminated.

[0060] Furthermore, this disclosure is not limited to the embodiments described above, but is sufficient to be consistent with the intent of the disclosures described in the embodiments described above. Therefore, it may be a configuration in which at least two of the embodiments described above are combined, or a configuration in which any of the illustrated components or components described with reference numerals in the embodiments described above are omitted. [Explanation of symbols]

[0061] 1… Locking system 2… Fixing rail 3… Item 10… Stud fitting 11… Locking wire 12… Engagement part 20... Locking device 21... Swivel arm 21A... Contact part 22… Locking projection 22A… Position adjustment bolt 22B… Spring 22C… Nut 22D… Tapered section 23… Shaft section 24... Applicator part 25... Insertion part 25A... Insertion main body part 25D… Tapered section 25B… Bracket

Claims

1. In a locking device that is positioned at a distance from a fixed part and is capable of locking with a locking wire fixed to the fixed part, An insertion part that is inserted into the gap between the locking wire and the fixing part, With the insertion portion inserted into the gap, a swing arm located on the opposite side of the insertion portion with respect to the locking wire, extending in a direction parallel to the insertion direction of the insertion portion, and swinging at its tip in the extending direction toward or toward the insertion portion, A locking projection provided on the tip side of the swing arm and protruding toward the insertion portion, the locking projection being displaceable in a direction parallel to the extension direction of the swing arm, With the insertion portion inserted into the gap, the shaft portion is positioned on the opposite side of the locking projection, sandwiching the locking wire, and supports the swinging arm so that it can swing; In the state in which the insertion portion is inserted into the gap, the insertion portion comprises a contact portion positioned on the opposite side of the locking projection from the locking wire, and the contact portion contacts the locking wire from the insertion direction, The locking projection is a locking device that can contact the locking wire from the insertion direction by being displaced relative to the swinging arm.

2. The locking device according to claim 1, wherein the tip of the locking projection is provided with a tapered portion that protrudes toward the contact portion.

3. The locking device according to claim 2, wherein the insertion portion is provided with a groove into which the tapered portion can be fitted.

4. The swinging arm is provided with a contact portion that can contact the locking wire, The locking device according to any one of claims 1 to 3, wherein the contact portion contacts the locking wire from the opposite side of the insertion portion, with the insertion portion in between, when the insertion portion is inserted into the gap.

5. A locking wire positioned at a distance from the fixing part and fixed to the said fixing part, An insertion part that is inserted into the gap between the locking wire and the fixing part, With the insertion portion inserted into the gap, a swing arm located on the opposite side of the insertion portion with respect to the locking wire, extending in a direction parallel to the insertion direction of the insertion portion, and swinging at its tip in the extending direction toward or toward the insertion portion, A locking projection provided on the tip side of the swing arm and protruding toward the insertion portion, the locking projection being displaceable in a direction parallel to the extension direction of the swing arm, With the insertion portion inserted into the gap, the shaft portion is positioned on the opposite side of the locking projection, sandwiching the locking wire, and supports the swinging arm so that it can swing; In the state in which the insertion portion is inserted into the gap, the insertion portion comprises a contact portion positioned on the opposite side of the locking projection from the locking wire, and the contact portion contacts the locking wire from the insertion direction, The locking projection is a locking system that can contact the locking wire from the insertion direction by being displaced relative to the swinging arm.

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