Furniture fixing devices

Abstract

To provide a furniture fixing device that can be easily attached / detached with a single touch, is also difficult to understand how to attach / detach since it is almost invisible from the outside when in use, and further requires a special tool for removal and cannot be easily removed by outsiders.SOLUTION: A furniture fixing device comprises: a first member 4 attached to a floor 3 on which a chair 2 is placed; a second member 5 attached to a bottom surface part of the chair 2; a locking mechanism 6 that locks the first member 4 and the second member 5 so that they cannot be separated when the chair 2 is placed on the floor 3; and a release handle 7 that is formed separately from the locking mechanism 6, and releases the lock of the locking mechanism 6 through a gap S between the chair 2 and the floor 3.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a furniture fixing device for fixing furniture to a floor surface or the like.

Background Art

[0002] Conventionally, various types of such furniture fixing devices have been proposed.

[0003] For example, Patent Document 1 discloses a fixing device for furniture or the like to a floor surface that enables easy positioning when fixing the base body of furniture or various equipment to the floor surface.

[0004] This fixing device fits a clamp body into a base body supported by an adjuster bolt and fixes this clamp body to the floor surface with an anchor bolt. The clamp body is provided with a pressing portion for pressing and fixing the base body. Then, by raising and lowering the base body with the adjuster bolt, the base body can be moved, fixed, or changed.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, this fixing device has problems such as the attachment and detachment work being troublesome, the attachment and detachment method being easy to understand, and no special tool being required for removal and even an outsider being able to remove it.

[0007] The present invention was made based on the above circumstances, and its purpose is to provide a furniture fixing device that can be easily attached and detached with a single touch, is virtually invisible from the outside when in use, making it difficult to understand how to attach and detach it, and requires a special tool to remove, making it difficult for outsiders to remove it. [Means for solving the problem]

[0008] To solve the above problems, the furniture fixing device according to the present invention is characterized by comprising: a first member attached to the floor on which the furniture is placed; a second member attached to the bottom surface of the furniture; a locking mechanism that locks the first member and the second member in a way that prevents them from separating when the furniture is placed on the floor; and a release handle, which is configured separately from the locking mechanism and is used to release the lock of the locking mechanism through the gap between the furniture and the floor. [Effects of the Invention]

[0009] According to the furniture fixing device of the present invention, it can be easily attached and detached with a single touch, and since it is almost invisible from the outside when in use, the method of attachment and detachment is difficult to understand. Furthermore, a special tool is required to remove it, so it cannot be easily removed by outsiders. [Brief explanation of the drawing]

[0010] The drawings illustrate specific embodiments of the present invention, including not only essential components of the invention but also optional and preferred embodiments. [Figure 1] A perspective view showing furniture fixed to the floor using a furniture fixing device according to one embodiment of the present invention. [Figure 2] A perspective view showing furniture removed from the furniture fixing device. [Figure 3] A bottom view showing the second component of the furniture fixing device. [Figure 4] A perspective view showing the furniture fastening device. [Figure 5] An exploded perspective view showing the furniture fastening device. [Figure 6]Perspective view showing the locking mechanism on one side of the furniture fixing device. [Figure 7] Perspective view showing the locking mechanism on the other side of the furniture fixing device. [Figure 8] Cross-sectional view showing the locked state of the locking mechanism. [Figure 9] Cross-sectional view showing the unlocked state of the locking mechanism. [Figure 10] Plan view showing the connecting member of the furniture fixing device.

Mode for Carrying Out the Invention

[0011] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0012] In FIG. 1, reference numeral 1 indicates a furniture fixing device according to the present invention.

[0013] This furniture fixing device 1 is for fixing, for example, a chair (furniture) 2 to the floor 3. As shown in FIG. 2, it includes a first member 4 attached to the floor 3 on which the chair 2 is placed, and a second member 5 attached to the bottom surface of the chair 2.

[0014] Furthermore, this furniture fixing device 1 includes a locking mechanism 6 that locks the first member 4 and the second member 5 inseparably by placing the chair 2 on the floor 3, and a release handle 7 for releasing the lock of the locking mechanism 6 through a gap S between the chair 2 and the floor 3.

[0015] This release handle 7 has a structure separate from the locking mechanism 6.

[0016] The chair 2 has a plurality of legs 8 attached to the bottom surface, and is configured such that a gap S is formed between the chair 2 and the floor 3. <00​​​​​Further, a concave portion 9 is formed on the bottom surface portion of the chair 2, and the second member 5 is attached inside the concave portion 9.

[0019] As shown in FIG. 3, this second member 5 has an upper frame body 10 formed by bending a plate-like body.

[0020] This upper frame body 10 is formed in a concave cross-section having a top plate portion 11, a pair of upper side plate portions 12 hanging down on both sides of the top plate portion 11, and a pair of extending portions 13 extending outward from the lower ends of these upper side plate portions 12, and the extending portions 13 are attached to the bottom surface portion of the chair 2 by screws 15.

[0021] Further, on the inner surface of the upper side plate portion 12 of the upper frame body 10, two pairs of latching shafts (latching portions) 14 are provided so as to project inward facing each other.

[0022] As shown in FIGS. 4 and 5, the first member 4 has a lower frame body 16 formed by bending a plate-like body.

[0023] This lower frame body 16 is formed in a concave cross-section having a bottom plate portion 17 attached to the floor 3 by screws 21 and a pair of lower side plate portions 18 rising upward from both sides of the bottom plate portion 17, and is configured to be fitted inside the upper frame body 10.

[0024] Further, on the upper edge of the lower side plate portion 18, two pairs of concave escape portions 19 are formed corresponding to the latching shafts 14.

[0025] When the chair 2 is placed on the floor 3, the latching shafts 14 are fitted into the escape portions 19.

[0026] Furthermore, on the lower frame body 18, two pairs of locking mechanisms 6 are attached inside the lower side plate portion 18 corresponding to the escape portions 19.

[0027] This locking mechanism 6 locks the first member 4 and the second member 5 so that they cannot be separated when the chair 2 is placed on the floor 3, thereby fixing the chair 2 to the floor 3.

[0028] In other words, these two pairs of locking mechanisms 6 have the same configuration, and the locking mechanism 6 provided on one of the lower plate portions 18 has a spacer 22 interposed between it and the lower plate portion 18, as shown in Figure 6, while the locking mechanism 6 provided on the other lower plate portion 18 has a spacer 22 interposed between it and the lower plate portion 18, as shown in Figure 7.

[0029] Furthermore, the locking mechanism 6 has a frame member 31 with a U-shaped cross-section.

[0030] The frame member 31 has a pair of cylindrical mounting shafts 32, and is attached to the lower plate portion 18 by inserting bolts 33 through these mounting shafts 32 and mounting holes (not shown) provided in the lower plate portion 18 and tightening them with nuts 34.

[0031] Furthermore, the frame member 31 has a concave relief portion 35 between the mounting shafts 32 to allow the locking shaft 14 to move out of the way.

[0032] In other words, the relief portion 35 is provided to match the relief portion 19 of the lower plate portion 18, and when the chair 2 is placed on the floor 3, the locking shaft 14 fits into the relief portion 19 and the relief portion 35.

[0033] Furthermore, a claw member 36 that engages with the locking shaft 14 is rotatably attached to one of the mounting shafts 32.

[0034] A recess 37 is formed at the rotating tip of the claw member 36, and as shown in Figure 8, when the chair 2 is placed on the floor 3, the claw member 36 rotates with the locking shaft 14 fitted into the recess 37, and fits into the relief portion 19 and the relief portion 35.

[0035] This claw member 36 is biased in the non-engaging direction relative to the locking shaft 14 by the first spring (first biasing means) 38, and as shown in Figure 9, when the chair 2 is lifted from the floor 3, the recess 37 rotates so that it separates from the relief portion 19 and the relief portion 35 and faces upward.

[0036] Furthermore, a cam member 39 is rotatably attached to the other mounting shaft 32 for holding the claw member 36 in a engaged state with the locking shaft 14.

[0037] In other words, the cam member 39 has a sliding contact portion 40 into which the tip of the claw member 36 slides, and a fitting recess 41 into which the tip of the claw member 36 engages.

[0038] Then, by placing the chair 2 on the floor 3, the claw member 36 slides against the sliding contact portion 40, causing the cam member 39 to rotate and engage with the fitting recess 41, thereby holding the locking shaft 14 in the locked position.

[0039] Furthermore, the cam member 39 is biased by the second spring (second biasing means) 42 in the direction of holding the claw member 36, preventing the claw member 36 from rotating in the direction of biasing by the first spring 38.

[0040] In this state, the locking mechanism 6 is locked, and the chair 2 is fixed to the floor 3.

[0041] Furthermore, the cam members 39 of the two pairs of locking mechanisms 6 are connected by a connecting member 51, and the lock state of the two pairs of locking mechanisms 6 can be released simultaneously by operating this connecting member 51.

[0042] As shown in Figure 10, the connecting member 51 includes a U-shaped connecting member 55 having a first connecting portion 52 that connects one cam member 39 of the two pairs of locking mechanisms 6, a second connecting portion 53 that connects the other cam member 39 of the two pairs of locking mechanisms 6, and a connecting portion 54 that connects the first connecting portion 52 and the second connecting portion 53.

[0043] Two pairs of engaging shafts 56 are provided protruding from the first connecting portion 52 and the second connecting portion 53, and these engaging shafts 56 are rotatably fitted into engaging holes 57 formed in the cam member 39.

[0044] As a result, when the U-shaped connecting member 55 slides horizontally, the two pairs of cam members 39 rotate simultaneously.

[0045] Furthermore, a release handle 7 is used to release the locked state of this locking mechanism 6.

[0046] This release handle 7 is configured separately from the locking mechanism 6 and is configured to release the lock of the locking mechanism 6 through the gap S between the chair 2 and the floor 3.

[0047] In other words, the release handle 7 has a long, flat handle portion 62 and a hook-shaped portion 63 that is bent or otherwise positioned to stand upright at the tip of the handle portion 62.

[0048] Then, by inserting the hook-shaped portion 63 into the gap S between the chair 2 and the floor 3 and hooking it onto the connecting portion 54 of the connecting member 51 and pulling, the cam member 39 can be rotated against the biasing force of the second spring 42.

[0049] In this configuration, as shown in Figure 2, when the chair 2 is not placed on the floor 3, the recess 37 of the claw member 36 of the locking mechanism 6 is facing upward due to the biasing force of the first spring 38.

[0050] On the other hand, when the chair 2 is placed on the floor 3, the latching shaft 14 of the second member 5 attached to the chair 2 fits into the recess 37 of the claw member 36, causing the claw member 36 to rotate against the biasing force of the first spring 38.

[0051] At this time, as shown in Figure 8, the tip of the claw member 36 slides against the sliding contact portion 40 of the cam member 39, causing the cam member 39 to rotate and engage with the fitting recess 41.

[0052] The cam member 39 maintains its fitted state due to the biasing force of the second spring 42, thereby locking the locking mechanism 6 and fixing the chair 2 to the floor 3.

[0053] To release the lock mechanism 6, insert the release handle 7 into the gap S between the chair 2 and the floor 3, pull the connecting member 51 to rotate the cam member 39 against the biasing force of the second spring 42, and release the hold of the claw member 36.

[0054] This allows the recess 37 of the claw member 36 to rotate upward away from the relief portion 19, releasing the locking state of the locking shaft 14 and making it possible to remove the chair 2.

[0055] With the above configuration, the furniture fixing device 1 allows the chair 2 to be easily attached to and detached from the floor 3 with a single touch. Moreover, since the device is almost invisible from the outside when the chair 2 is in use, the attachment and detachment method is difficult to understand. Furthermore, a special tool, the release handle 7, is required to remove the chair 2, making it difficult for outsiders to easily remove the chair 2.

[0056] The disclosure relating to the present invention described above can be summarized to at least the following:

[0057] In other words, the furniture fixing device according to the present invention is characterized by comprising: a first member attached to the floor on which the furniture is placed; a second member attached to the bottom surface of the furniture; a locking mechanism that locks the first member and the second member in a way that prevents them from separating when the furniture is placed on the floor; and a release handle, which is configured separately from the locking mechanism and is used to release the lock of the locking mechanism through the gap between the furniture and the floor.

[0058] The present invention described above may include at least the following embodiments. These embodiments may be adopted separately or in combination with each other.

[0059] (1) The locking mechanism comprises a latching portion provided on the second member, a claw member provided on the first part which latches onto the latching portion when furniture is placed on the floor, and a cam member which holds the claw member in the latched state of the latching portion, and the release handle is configured to release the hold of the cam member.

[0060] (2) The system further comprises a first biasing means for biasing the claw member in the non-engaging direction and a second biasing means for biasing the cam member in the holding direction.

[0061] (3) The locking mechanism shall consist of at least one pair arranged in parallel.

[0062] (4) The device further comprises connecting members that connect at least one pair of cam members of the locking mechanism.

[0063] (5) The locking mechanism is provided with at least two pairs in parallel, and the connecting member comprises a U-shaped connecting member having a first connecting portion that connects the cam members on one side of the locking mechanism, a second connecting portion that connects the cam members on the other side of the locking mechanism, and a connecting portion that connects the first connecting portion and the second connecting portion. [Explanation of Symbols]

[0064] 1 Furniture fixing device 2. Furniture (Chairs) 3 beds 4. First Member 5. Second Member 6. Locking mechanism S Gap 7. Release handle 14 Latching part (Latching shaft) 36 Claw member 39 Cam component 38 First biasing means (first spring) 42 Second biasing means (second spring) 51 Connecting member 52 1st connection part 53 2nd connection part 54 Connecting part 55 U-shaped connecting material

Claims

1. A first component attached to the floor on which furniture is placed, A second member attached to the bottom surface of the aforementioned furniture, A locking mechanism that locks the first member and the second member in a way that prevents them from separating by placing the furniture on the floor, A release handle is provided, which is configured separately from the locking mechanism, for releasing the lock of the locking mechanism through the gap between the furniture and the floor. A furniture fixing device characterized by being equipped with the following.

2. The locking mechanism is A latching portion provided on the second member, A claw member provided on the first member, which hooks the furniture onto the hooking portion when the furniture is placed on the floor, A cam member that holds the claw member in the engaged state of the locking portion, Equipped with, The release handle is configured to release the cam member from being held. The furniture fixing device according to feature 1.

3. A first biasing means that biases the claw member in the non-engaging direction, A second biasing means for biasing the cam member in the holding direction, The furniture fixing device according to claim 2, further comprising the features described above.

4. The furniture fixing device according to claim 2, characterized in that the locking mechanism is provided in at least one pair in parallel.

5. The furniture fixing device according to claim 4, further comprising a connecting member for connecting the cam member of the locking mechanism.

6. The locking mechanism is provided with at least two pairs arranged in parallel. The aforementioned connecting member is A first connecting portion that connects the cam member on one side of the locking mechanism, A second connecting portion that connects the cam member on the other side of the locking mechanism, A connecting portion that connects the first connecting portion and the second connecting portion, The furniture fixing device according to claim 5, characterized by comprising a U-shaped connecting member having

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