Furniture fixing device

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 fastening device for fastening furniture to a floor surface or the like. [Background technology]

[0002] Various types of furniture fastening devices have been proposed in the past.

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

[0004] In this fixing device, a clamp body is fitted into a base body supported by an adjuster bolt, and the clamp body is fixed to the floor surface by an anchor bolt. The clamp body is provided with a pressing part that holds down and fixes the base body. The base body can be moved or fixed by raising and lowering it with the adjuster bolt. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 10-179295 Summary of the Invention [Problem to be solved by the invention]

[0006] However, this fixing device has problems such as being cumbersome to attach and detach, the method of attaching and detaching is easy to understand, and no special tools are required to remove it, so even an outsider can remove it.

[0007] To provide a furniture fixing device which can be easily attached and detached with one touch, which is almost invisible from the outside when in use, making it difficult to understand how to attach and detach it, and which requires a special tool to remove it, making it difficult for outsiders to remove it. [Means for solving the problem]

[0008] In order to solve the above problems, the furniture fixing device of 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 of the furniture, a locking mechanism that locks the first member and the second member together so that they cannot be separated by placing the furniture on the floor, and a release handle that is constructed separately from the locking mechanism and is used to unlock the locking mechanism through the gap between the furniture and the floor. Effect of the Invention

[0009] To provide a furniture fixing device according to the present invention, which can be easily attached and detached with a single touch, and which is hardly visible from the outside when in use, making it difficult to understand how to attach and detach it, and which requires a special tool for removal, making it difficult for outsiders to remove it. [Brief description of the drawings]

[0010] The drawings show specific embodiments of the present invention, including essential features of the invention as well as alternative and preferred embodiments. [Figure 1] 1 is a perspective view showing a state in which furniture is fixed to a floor using a furniture fixing device according to an embodiment of the present invention; [Diagram 2] FIG. 4 is a perspective view showing a state in which furniture has been removed from the furniture fixing device. [Diagram 3] FIG. 4 is a bottom view showing the second member of the furniture fastening device. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6]FIG. 4 is a perspective view showing a lock mechanism on one side of the furniture fixing device. [Figure 7] FIG. 4 is a perspective view showing the other lock mechanism of the furniture fixing device. [Figure 8] FIG. 4 is a cross-sectional view showing the locking mechanism in a locked state. [Figure 9] FIG. 4 is a cross-sectional view showing the locking mechanism in an unlocked state. [Figure 10] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

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

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

[0013] This furniture fixing device 1 is used to fix, for example, a chair (furniture) 2 to a floor 3, and as shown in Figure 2, it has a first member 4 that is attached to the floor 3 on which the chair 2 is placed, and a second member 5 that is attached to the bottom of the chair 2.

[0014] Furthermore, this furniture fixing device 1 is equipped with a locking mechanism 6 that locks the first member 4 and the second member 5 together so that they cannot be separated when the chair 2 is placed on the floor 3, and a release handle 7 for unlocking the locking mechanism 6 through the gap S between the chair 2 and the floor 3.

[0015] The release handle 7 is a separate structure from the lock mechanism 6.

[0016] The chair 2 has a plurality of legs 8 attached to its bottom surface, and is configured so that a gap S is formed between the chair 2 and the floor 3.

[0017] The release handle 7 is adapted to release the lock of the lock mechanism 6 through this gap S.

[0018] Further, a recess 9 is formed in the bottom surface of the chair 2, and the second member 5 is attached to the inside of this recess 9.

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

[0020] The upper frame 10 is formed with a concave cross-section and has a table top 11, a pair of upper plate portions 12 hanging down on either side of the table top 11, and a pair of extension portions 13 extending outward from the lower ends of each of the upper plate portions 12, and the extension portions 13 are attached to the bottom portion of the chair 2 with screws 15.

[0021] Furthermore, upper frame 10 has two pairs of hook shafts (hook portions) 14 protruding inwardly from the inner surface of upper plate portion 12 so as to face each other.

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

[0023] The lower frame body 16 is formed with a concave cross-section, having a bottom plate portion 17 that is attached to the floor 3 with screws 21, and a pair of lower plate portions 18 that rise upward from both sides of the bottom plate portion 17, and is configured to fit inside the upper frame body 10.

[0024] Further, the upper edge of the lower plate portion 18 is formed with two pairs of recessed recesses 19 corresponding to the latch shafts 14 .

[0025] When the chair 2 is placed on the floor 3, the hook shaft 14 fits into the recess 19.

[0026] Furthermore, two pairs of locking mechanisms 6 are attached to the lower frame 18 on the inside of the lower plate portion 18 so as to correspond to the recesses 19 .

[0027] This locking mechanism 6 locks the first member 4 and the second member 5 together 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, the 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 on one side, as shown in FIG. 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 on the other side, as shown in FIG. 7.

[0029] The lock mechanism 6 also has a frame member 31 having a U-shaped cross section.

[0030] This 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 mounting holes (not shown) provided on these mounting shafts 32 and the lower plate portion 18 and tightening them with nuts 34.

[0031] Further, the frame member 31 has a recess 35 between the mounting shafts 32 for allowing the hook shaft 14 to escape.

[0032] That is, this recess 35 is provided to match the recess 19 of the lower plate portion 18 , and when the chair 2 is placed on the floor 3 , the hook shaft 14 fits into the recess 19 and the recess 35 .

[0033] Furthermore, a claw member 36 that hooks onto the hook shaft 14 is rotatably attached to one of the mounting shafts 32 .

[0034] A recess 37 is formed at the rotating tip of this 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 hanging shaft 14 fitted into the recess 37, and fits into the recess 19 and the recess 35.

[0035] This claw member 36 is biased in the non-hooking direction against the hook shaft 14 by a 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 upward and away from the recess 19 and the recess 35.

[0036] Further, a cam member 39 for holding the claw member 36 in a hooked state on the hook shaft 14 is rotatably attached to the other mounting shaft 32 .

[0037] That is, the cam member 39 is formed with a sliding contact portion 40 against which the tip of the claw member 36 slides, and a fitting recess 41 into which the tip of the claw member 36 fits.

[0038] When the chair 2 is placed on the floor 3, the claw member 36 slides against the sliding contact portion 40 while rotating the cam member 39, and engages with the fitting recess 41, thereby holding the hook shaft 14 in the hooked state.

[0039] Further, the cam member 39 is biased by a second spring (second biasing means) in a direction in which the claw member is held, so that the claw member cannot rotate in the biasing direction by the first spring .

[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 locked state of the two pairs of locking mechanisms 6 can be released simultaneously by operating this connecting member 51.

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

[0043] Two pairs of engagement shafts 56 are protrudingly provided on the first connecting portion 52 and the second connecting portion 53, and the engagement shafts 56 are rotatably fitted into engagement 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] To release the locked state of the lock mechanism 6, a release handle 7 is used.

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

[0047] That is, the release handle 7 has a long, flat handle portion 62 and a hook-shaped portion 63 that is provided at the tip of the handle portion 62 by bending or the like so as to stand up.

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

[0049] In this configuration, as shown in FIG. 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 faces 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 hook 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, the tip of the claw member 36 rotates the cam member 39 while being in sliding contact with the sliding contact portion 40 of the cam member 39, and fits into the fitting recess 41, as shown in FIG.

[0052] The cam member 39 is maintained in the fitted state by the biasing force of the second spring 42, whereby the locking mechanism 6 is brought into the locked state and the chair 2 is fixed to the floor 3.

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

[0054] As a result, the recess 37 of the claw member 36 becomes rotatable upward away from the recess 19, the latched state of the latch shaft 14 is released, and the chair 2 can be removed.

[0055] According to the above-mentioned configuration, the furniture fastening device 1 allows the chair 2 to be easily attached and detached to the floor 3 with a single touch, and yet, since the chair 2 is substantially invisible from the outside when it is in use, it is difficult to understand how to attach and detach it. Furthermore, when removing the chair 2, a special tool, the release handle 7, is required, so that an outsider cannot easily remove the chair 2.

[0056] The disclosure regarding the present invention described above can be summarized at least as follows.

[0057] In other words, the furniture fixing device of 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 together so that they cannot be separated by placing the furniture on the floor, and a release handle that is constructed separately from the locking mechanism and is used to unlock the locking mechanism through the gap between the furniture and the floor.

[0058] The present invention can include at least the following embodiments, which can be adopted separately or in combination with each other.

[0059] (1) The locking mechanism includes a hook portion provided on the second member, a claw member provided on the first member for hooking the furniture item to the hook portion by placing the furniture item on the floor, and a cam member for holding the claw member in the hooked state on the hook portion, and the release handle is configured to be able to release the hold of the cam member.

[0060] (2) The locking mechanism further includes a first biasing means for biasing the pawl member in the non-latching direction, and a second biasing means for biasing the cam member in the retaining direction.

[0061] (3) At least one pair of locking mechanisms shall be provided in parallel.

[0062] (4) The locking mechanism further includes a connecting member that connects the cam members of at least one pair of the locking mechanisms.

[0063] (5) The locking mechanism is provided in at least two pairs arranged in parallel, and the connecting member has 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 member 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 connector

Claims

1. A first member that is attached to a floor on which furniture is placed; A second member attached to a bottom surface of the furniture; a locking mechanism that locks the first member and the second member together so that they cannot be separated when the furniture is placed on the floor; an unlocking handle configured separately from the locking mechanism and configured to unlock the locking mechanism through a gap between the furniture and the floor; A furniture fixing device comprising:

2. The locking mechanism includes: A hook portion provided on the second member; a hook member provided on the first member for hooking the furniture item on the hook portion by placing the furniture item on the floor; a cam member that holds the claw member in a hooked state on the hook portion; Equipped with The release handle is configured to be able to release the holding of the cam member.

2. The furniture fastening device according to claim 1 .

3. a first biasing means for biasing the claw member in a non-latching direction; A second biasing means for biasing the cam member in a holding direction; The furniture fastening device according to claim 2, further comprising:

4. 3. The furniture fastening device according to claim 2, wherein the locking mechanism comprises at least one pair of locking mechanisms arranged in parallel.

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

6. The lock mechanism includes at least two pairs of lock mechanisms arranged in parallel. The 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; 6. The furniture fixing device according to claim 5, further comprising a U-shaped connecting member having a groove.

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