Fixing structure for articles

Abstract

To provide a fixing structure for an article that allows for each attachment and detachment of an article without using a magnet.SOLUTION: In a process of inserting a fixing member 1 attached to a lower portion of a table Ta into a fixed unit 2 attached to a front panel, a spring member 3 is elastically deformed in a direction along an inserting direction and an outward direction orthogonal to the inserting direction, and the fixing member 1 is energized to a downstream side in the inserting direction by the deformation of the spring member 3, with the fixing member 1 reaching a prescribed insertion position and the spring member 3 fitted in a locking groove 15 in the fixing member 1. Thus, the table Ta can be stably fixed and attachment / detachment of the table Ta can be easily performed without using a magnet.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a structure for fastening an article that can be used, for example, to fasten a table to a floor panel of a vehicle, etc. In particular, the present invention relates to an improvement in a fastening structure that is easy to attach and detach. [Background technology]

[0002] Conventionally, when installing items such as a table or a shelf in the cabin of a vehicle such as a camper, it is necessary to fix these items so that they cannot be moved. In general, the lower part of the table is bolted to a floor panel, and the shelf is bolted to a wall panel in the cabin. Alternatively, a vehicle may be provided with a fixing hook, and an item may be fixed by engaging the fixing hook. However, such a fixing structure requires a complicated attachment and detachment process, and therefore there is room for improvement. For example, in vehicles such as a camper, there is a demand to change the installation location of items such as a table or a shelf every time the usage mode of the cabin space is changed, and therefore there is a demand for simplifying the attachment and detachment process of these items.

[0003] In consideration of this point, Patent Document 1 has been proposed. Patent Document 1 discloses a configuration including a first closing member provided on an article and a second closing member provided on a floor panel, in which a locking piece that can be freely moved in and out using magnetic force is housed in the first closing member. When an article is fixed to the floor panel, when the first closing member approaches the second closing member, the magnetic force of the magnet housed in the second closing member causes the locking piece to protrude from the first closing member, and the locking piece can be locked to a latch portion of a locking element housed in the second closing member. When the locked state of the first closing member is released, the first closing member is moved horizontally to pass through a side opening of the locking element. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] German patent number 102013203440 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the article fixing structure disclosed in Patent Document 1 has the following problems because it uses magnets.

[0006] First, the manufacturing cost rises because a small magnet with high magnetic force is required, and the shape of the resin component for inserting the magnet becomes complicated, which makes the molding die complicated. In addition, the magnetic force of the magnet may attract magnetic materials such as iron sand. If the magnetic material gets stuck between the components, not only will a stable fixing strength not be obtained, but in some cases, the item may not be able to be fixed. In addition, if an electronic device is present near the fixing position of the item, the magnetic force may adversely affect the electronic device. In order to prevent this adverse effect, a magnetic shield must be provided, which also leads to an increase in manufacturing costs.

[0007] The present invention has been made in consideration of the above points, and its object is to provide an article fixing structure that can stably fix an article without using magnets and can easily attach and detach the article. [Means for solving the problem]

[0008] The solution of the present invention for achieving the above object is based on a fixing structure for an article, in which a fixing member attached to the article is inserted into a fixing means attached to the fixed object and fixed to the fixed object. In the fixing structure for an article, the fixing means includes a spring member, a base member, and a pressing member. The spring member elastically deforms in a direction along the insertion direction and in an outward direction perpendicular to the insertion direction by receiving a pressing force from the fixing member during the process of inserting the fixing member into the fixing means, and has a locking portion that returns to its shape inward so as to fit into a locking groove formed on an outer periphery of the fixing member when the fixing member reaches a predetermined insertion position and is locked in the locking groove, and a supported portion that extends to the outer periphery side continuous with the locking portion. The base member has a bottom plate portion that abuts against the fixing member when the fixing member reaches the predetermined insertion position, and a spring seat surface that supports an outer periphery of the locking portion of the spring member. The retaining member has a spring retaining portion facing the outer circumferential portion of the locking portion of the spring member supported by the spring seat surface of the base member, and an insertion opening into which the fixed member is inserted. The locking groove of the fixed member has an abutment surface against which an inner circumferential portion of the locking portion of the spring member abuts when the fixed member reaches the predetermined insertion position, and when the fixed member reaches the predetermined insertion position, the position of the abutment surface of the locking groove is located upstream of the position of the spring seat surface of the base member in the insertion direction, and the inner circumferential portion of the locking portion of the spring member abuts on the abutment surface and the outer circumferential portion of the locking portion of the spring member abuts on the spring seat surface, thereby deforming the spring member to urge the fixed member downstream in the insertion direction.

[0009] According to this specification, when an article is fixed to a fixed object, the fixing member attached to the article is inserted into the fixing means attached to the fixed object to fix it. At this time, the spring member is subjected to a pressing force from the fixing member during the process of inserting the fixing member into the fixing means, and elastically deforms in a direction along the insertion direction and in an outward direction perpendicular to the insertion direction, and when the fixing member reaches a predetermined insertion position, the spring member returns to its shape inward so as to fit into the locking groove formed on the outer periphery of the fixing member and is locked in the locking groove. In this state, the position of the abutment surface of the locking groove is located upstream of the position of the spring seat surface of the base member in the insertion direction, and the inner peripheral portion of the locking portion of the spring member abuts against the abutment surface and the outer peripheral portion of the locking portion of the spring member abuts against the spring seat surface, thereby deforming the spring member to urge the fixing member downstream in the insertion direction. In this way, the fixing member is fixed in a state of being urged against the fixing means, so that the article can be stably fixed without using a magnet. Furthermore, when the fixing member is to be detached from the fixing means, it can be easily detached by deformation (deformation in the outward direction) of the spring member, so that the article can be easily attached and detached.

[0010] In addition, the base member has a slope portion that slopes outwardly toward the upstream side of the insertion direction so as to guide the outer circumferential portion of the engagement portion of the spring member toward the upstream side of the insertion direction when the spring member elastically deforms outward due to the pressing force from the fixed member.

[0011] As a result, when the locking portion of the spring member is elastically deformed outward by the pressing force from the fixing member, the outer peripheral portion of the locking portion is guided (moves) upstream in the insertion direction along the slope portion. As described above, when the fixing member reaches a predetermined insertion position, the position of the abutment surface of the locking groove is located upstream in the insertion direction from the position of the spring seat surface of the base member, but since the locking portion is guided upstream in the insertion direction along the slope portion, this locking portion (inner peripheral portion of the locking portion) is easily locked (fitted) into the locking groove of the fixing member. This ensures the reliability of the operation of fixing the fixing member to the fixing means and the stability of the fixed state of the article.

[0012] The bottom plate portion of the base member has a curved shape that bulges out toward the upstream side in the insertion direction.

[0013] According to this, even if there is a variation in shape among the components constituting the fixing structure, the variation can be absorbed by the deformation of the curved bottom plate portion. Therefore, the fixing member can be stably abutted against the bottom plate portion of the base member, and the occurrence of rattling between these members can be suppressed. As a result, the article can be stably fixed.

[0014] The base member is provided with a spring fixing portion that restricts the position of the supported portion of the spring member so as to restrict deformation of the supported portion in the outward direction.

[0015] This allows the engaging portion of the spring member to have a so-called cantilever structure, and ensures good elastic energy (restoring force for returning to shape) of the spring member when the fixing member reaches a predetermined insertion position.

[0016] The cross-sectional shape of the spring member is circular or rectangular.

[0017] In particular, when the cross-sectional shape of the spring member is rectangular, the spring member can be easily deformed outward when it receives a pressing force from the fixing member (when the cross-sectional area is the same as when the spring member is circular, the moment of inertia becomes smaller, making it easier to deform), and the speed of shape recovery can be increased. This ensures the reliability of the operation of fixing the fixing member to the fixing means. Effect of the Invention

[0018] In the present invention, in the process of inserting the fixing member into the fixing means, the spring member is elastically deformed in a direction along the insertion direction and in an outward direction perpendicular to the insertion direction, and when the fixing member reaches a predetermined insertion position and the spring member fits into the locking groove of the fixing member, the deformation of the spring member urges the fixing member downstream in the insertion direction. This makes it possible to stably fix an article without using a magnet and to easily attach and detach the article. [Brief description of the drawings]

[0019] [Figure 1] FIG. 2 is a perspective view showing an example of a state in which a table and a shelf are installed in a vehicle cabin in an embodiment. [Diagram 2] FIG. 4 is an exploded perspective view of a fixed unit and a fixing member. [Diagram 3] 3(a) is a cross-sectional view showing a portion of the fixed unit and the fixing member at the start of the item fixing operation, FIG. 3(b) is a cross-sectional view showing a portion of the item fixing operation at midway through the item fixing operation, and FIG. 3(c) is a cross-sectional view showing a portion of the item fixing operation at the completion of the item fixing operation. [Figure 4] FIG. 11 is a plan view showing a state in which the spring member is attached to the base member. [Diagram 5] 5 is a cross-sectional view taken at a position corresponding to line VV in FIG. 4 in a state in which the fixing member is fixed to the fixed unit. [Figure 6] FIG. 11 is a cross-sectional view of a spring member according to a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In this embodiment, a case will be described in which the present invention is applied to a fixing structure for installing items such as a table or a shelf in a vehicle interior of a camper.

[0021] -Description of the vehicle interior- FIG. 1 is a perspective view showing an example of a state in which a table Ta and a shelf Sh are installed in a vehicle interior S in this embodiment. The article fixing structure according to the present invention is for fixing the table Ta to a floor panel (fixed object) Fp and for fixing the shelf Sh to a wall panel (fixed object) Wp. Specifically, the table Ta is fixed to the floor panel Fp by fixing a fixing member 1 (see FIGS. 2 and 3) attached to the lower part (lower surface) of the table Ta to a fixed unit (fixing means) 2 (also see FIGS. 2 and 3) attached to the floor panel Fp constituting the vehicle interior S. Also, the shelf Sh is fixed to the wall panel Wp by fixing the fixing member 1 attached to the side (rear surface) of the shelf Sh to the fixed unit 2 attached to the wall panel Wp constituting the vehicle interior S.

[0022] Specifically, the fixed units 2 are arranged (matrix arrangement) at a plurality of positions on the floor panel Fp, and the arrangement position of the table Ta can be arbitrarily changed by selecting a fixed unit 2 for fixing the fixing member 1 attached to the lower part of the table Ta. In other words, when a plurality of fixing members 1, 1, ... are attached to the lower part of the table Ta across the vehicle body longitudinal direction and vehicle width direction, the arrangement pitch (the arrangement pitch in the vehicle body longitudinal direction and the arrangement pitch in the vehicle width direction) of the fixing members 1, 1, ... attached to the lower part of the table Ta is an integer multiple of the arrangement pitch (the arrangement pitch in the vehicle body longitudinal direction and the arrangement pitch in the vehicle width direction) of each fixed unit 2, 2, ... on the floor panel Fp, and thus, when a fixed unit 2 for fixing one fixing member 1 is determined, the fixed unit 2 for fixing another fixing member 1 is also uniquely determined accordingly, so that the fixing position of the table Ta can be arbitrarily changed by arbitrarily selecting a fixed unit 2 for fixing the fixing member 1.

[0023] Similarly, the fixed units 2 are arranged (matrix arrangement) at multiple locations on the wall panel Wp, and the arrangement position of the shelf Sh can be arbitrarily changed by selecting the fixed unit 2 for fixing the fixing member 1 attached to the shelf Sh. In other words, when multiple fixing members 1,1 are attached to the shelf Sh along the vehicle body front-rear direction, the arrangement pitch (arrangement pitch in the vehicle body front-rear direction) of the fixing members 1,1 attached to the shelf Sh is an integer multiple of the arrangement pitch (arrangement pitch in the vehicle body front-rear direction) of each fixed unit 2,2 on the wall panel Wp, and thus, when the fixed unit 2 for fixing one fixing member 1 is determined, the fixed unit 2 for fixing the other fixing member 1 is also uniquely determined accordingly, so that the fixing position of the shelf Sh can be arbitrarily changed by arbitrarily selecting the fixed unit 2 for fixing the fixing member 1. In addition, as shown in FIG. 1, in this embodiment, multiple fixed units 2,2,... are arranged along the vertical direction of the wall panel Wp, so that the mounting height position of the shelf Sh can also be arbitrarily changed.

[0024] -Description of fixing parts and fixed units- Below, we will specifically describe the configuration of the fixing member 1 and the fixed unit 2. Since each fixing member 1 and each fixed unit 2 has the same configuration, we will explain here one fixing member 1 and one fixed unit 2 as representatives.

[0025] Fig. 2 is an exploded perspective view of the fixed unit 2 and the fixing member 1. Fig. 3 is a diagram showing the article fixing operation, in which Fig. 3(a) is a state at the start of the article fixing operation, Fig. 3(b) is a state during the article fixing operation, and Fig. 3(c) is a cross-sectional view (cross-sectional view at a position corresponding to line III-III in Fig. 4, which is a plan view of the spring member 3 and the base member 4 described later) showing a part (the right half in the figure) of the fixed unit 2 and the fixing member 1 in each state.

[0026] In the following description, an example will be given in which the fixing member 1 attached to the bottom of the table Ta is fixed to the fixed unit 2 attached to the floor panel Fp. In this case, when the fixing member 1 is fixed to the fixed unit 2, the fixing member 1 is inserted (fitted) into the fixed unit 2 from above. In other words, this insertion direction is the vertical direction. Therefore, the vertical direction described below corresponds to the direction in which the fixing member 1 is inserted into the fixed unit 2, and the horizontal direction corresponds to the direction perpendicular to the direction in which the fixing member 1 is inserted into the fixed unit 2. In addition, when the fixing member 1 attached to the shelf Sh is fixed to the fixed unit 2 attached to the wall panel Wp, the fixing member 1 is inserted into the fixed unit 2 in the horizontal direction.

[0027] (Description of fixing parts) 2 and 3, the fixing member 1 is a member that is attached to the bottom of the table Ta by fastening bolts. The fixing member 1 is a member having a substantially flattened cylindrical shape with a bolt insertion hole 11 formed in the center. The fixing member 1 is fixed (bolted) to the bottom of the table Ta by inserting a bolt B (see FIG. 3) from below into this bolt insertion hole 11.

[0028] The fixing member 1 includes a flange portion 12, a spring locking portion 13, and a base contact portion .

[0029] The flange portion 12 is located at the upper end of the fixing member 1, is circular in plan view, and has a predetermined outer diameter dimension. The outer diameter dimension of the flange portion 12 is set to be slightly larger than the opening width (see dimension t1 in FIG. 2) of an insertion opening 51a formed in a pressing member 5 constituting the fixed unit 2 described later.

[0030] The spring locking portion 13 is a cylindrical portion that is continuous with the lower side of the flange portion 12 and has a smaller diameter than the flange portion 12. The outer diameter dimension of this spring locking portion 13 is set to be slightly smaller than the opening width t1 of the insertion opening 51a formed in the pressing member 5 of the fixed unit 2. As a result, when this spring locking portion 13 is inserted into the insertion opening 51a of the pressing member 5 and reaches a predetermined insertion position, the fixing member 1 is fixed to the fixed unit 2 (a specific fixing structure will be described later).

[0031] A locking groove 15, which is recessed inwardly around the entire periphery, is formed on the outer circumferential surface of the spring locking portion 13. A bottom surface 15a (see FIG. 3) of this locking groove 15 serves as an abutment surface against which a part of a locking portion 33 of the spring member 3, which will be described later, abuts when the fixing member 1 reaches a predetermined insertion position and is fixed to the fixed unit 2 (the state shown in FIG. 3(c)).

[0032] The base abutment portion 14 is a portion that continues to the lower side of the spring locking portion 13. An outer peripheral surface 14a of the base abutment portion 14 is inclined toward the inner peripheral side as it extends downward. Moreover, an inner peripheral surface 14b of the base abutment portion 14 is inclined toward the outer peripheral side (outward direction) as it extends downward. This inner peripheral surface 14b is the portion that comes into contact with the head of the bolt B inserted into the bolt insertion hole 11.

[0033] (Description of fixed unit) The fixed unit 2 attached to the floor panel Fp is configured by integrally assembling a spring member 3, a base member 4, and a retaining member 5. Each member will be described below.

[0034] <Spring material explanation> The spring member 3 is made of metal and has a circular cross-sectional shape. When the fixing member 1 is inserted into the fixed unit 2, the spring member 3 is subjected to a pressing force from the fixing member 1 and elastically deforms in a direction along the insertion direction (specifically, upward) and in an outward direction perpendicular to the insertion direction (see the state shown in Figure 3(b)). When the fixing member 1 reaches a predetermined insertion position, the spring member 3 returns to its original shape in an inward direction so as to fit into the locking groove 15 and lock into the locking groove 15 (see the state shown in Figure 3(c)).

[0035] Fig. 4 is a plan view showing a state in which the spring member 3 is attached to the base member 4. For ease of understanding, the left-right direction in Fig. 4 will be referred to as the X direction, and the up-down direction will be referred to as the Y direction.

[0036] 4, the spring member 3 is shaped to surround the center of the base member 4. Specifically, the spring member 3 includes an arc portion 31 extending along the X direction, supported portions 32, 32 continuous with both sides (both sides in the X direction) of the arc portion 31 and positioned on the outer periphery (the radial outside of the base member 4), and locking portions 33, 33 continuous with the supported portions 32, 32.

[0037] The supported portion 32 is bent in a U-shape when viewed in a plane (a U-shape that opens toward the center of the base member 4), and is provided with a first extension portion 32a extending radially outwardly from the arc portion 31, a second extension portion 32b extending circumferentially from the radially outward end of the first extension portion 32a, and a third extension portion 32c extending radially inwardly (inwardly) from the tip of the second extension portion 32b.

[0038] The engaging portion 33 is bent in a U-shape when viewed in a plane (a U-shape that opens toward the supported portion 32), and is provided with a fourth extending portion 33a extending circumferentially continuous with the third extending portion 32c of the supported portion 32, a fifth extending portion 33b extending circumferentially continuous with the tip of the fourth extending portion 33a, and a sixth extending portion 33c extending circumferentially continuous with the outer circumferential end of the fifth extending portion 33b.

[0039] The dashed line in Fig. 4 indicates the shape of the insertion opening 51a provided in the pressing member 5. As can be seen from Fig. 4, of the locking portion 33 of the spring member 3, the fourth extension portion 33a, the fifth extension portion 33b, and a part of the sixth extension portion 33c (parts closer to the fifth extension portion 33b) face the insertion opening 51a.

[0040] The distance between the fifth extending portions 33b, 33b facing each other in the X direction (the distance in the X direction) is smaller than the outer diameter of the spring locking portion 13 of the fixed member 1. Therefore, in the process of inserting the fixed member 1 into the insertion opening 51a of the pressing member 5 (the process of inserting the fixed member 1 from the front side to the back side of the paper in FIG. 4 with the central positions of the pressing member 5 and the base member 4 aligned with the central position of the fixed member 1), the part of the spring member 3 facing this insertion opening 51a receives a pressing force (a pressing force directed outward in the X direction) from the fixed member 1. The imaginary lines in FIG. 4 show the state of deformation of the locking portion 33 of the spring member 3 due to receiving this pressing force.

[0041] <Description of base material> The base member 4 is a member that supports the spring member 3, and is fixed to the floor panel Fp together with the retaining member 5 via a bracket (not shown). For example, a locking claw (not shown) is provided on the outer periphery of the base member 4, and this locking claw is locked to a bracket that is bolted to the floor panel Fp. As shown in Figures 2 and 4, the base member 4 includes a bottom plate portion 41, a spring member support portion 42 that is located higher than the bottom plate portion 41, and an inclined plate portion 43 that spans between the bottom plate portion 41 and the spring member support portion 42.

[0042] The center of the bottom plate portion 41 is curved and bulges out toward the upper side. A through hole 41a is formed in the center of the bottom plate portion 41. The through hole 41a is for discharging dust (sand and dirt) that has entered the upper side of the base member 4 to the lower side. A ring-shaped protrusion 41b (see FIG. 3) that protrudes slightly upward is provided on the outer periphery of the through hole 41a in the bottom plate portion 41. The protrusion 41b is a portion that is abutted by the lower end of the fixing member 1 (the lower end of the base abutment portion 14) when the fixing member 1 is inserted (fitted) as shown in FIG. 3(c).

[0043] The spring member support portion 42 includes a spring fixing portion 42a, a spring seat surface 42b, and a slope portion 42c.

[0044] The spring fixing portion 42a supports the supported portion 32 of the spring member 3 so that it cannot move. Specifically, the spring fixing portion 42a is configured by a protrusion that abuts against the first extending portion 32a and the third extending portion 32c of the spring member 3. The interval between these spring fixing portions 42a, 42a (the interval in the circumferential direction of the base member 4) is approximately equal to the length dimension of the second extending portion 32b. Therefore, the supported portion 32 of the spring member 3 is fitted between the spring fixing portions 42a, 42a, and the spring member 3 is supported on the base member 4.

[0045] In particular, the tip position (the tip position on the inner circumference side) of the spring fixing portion 42a that abuts against the third extending portion 32c is set near the boundary between the third extending portion 32c and the fourth extending portion 33a of the spring member 3, that is, near the boundary between the supported portion 32 and the locking portion 33 of the spring member 3. Therefore, when a pressing force is applied from the fixing member 1, the deformation of the supported portion 32 of the spring member 3 is restricted by the spring fixing portion 42a, whereas the locking portion 33 is deformed. This gives the locking portion 33 a so-called cantilever structure (see the deformed state of the locking portion 33 shown by the imaginary line in FIG. 4).

[0046] The spring seat surface 42b is formed of a horizontal surface located below the sixth extension portion 33c of the locking portion 33 of the spring member 3, and is a portion that supports this sixth extension portion 33c.

[0047] As one of the features of this embodiment, when the fixed member 1 reaches a predetermined insertion position as shown in Fig. 3(c), the position of the bottom surface 15a of the locking groove 15 is located slightly above the position of the spring seat surface 42b of the base member 4. In other words, the distance between the lower end of the base abutment portion 14 of the fixed member 1 and the bottom surface 15a of the locking groove 15 is set slightly longer than the distance between the upper end position of the protrusion 41b of the base member 4 and the spring seat surface 42b. As a result, when the locking portion 33 of the spring member 3 is locked in the locking groove 15 of the fixed member 1, the inner peripheral portion of the locking portion 33 of the spring member 3 abuts against the bottom surface 15a of the locking groove 15 and the outer peripheral portion (the outer peripheral portion including the sixth extension portion 33c) of the locking portion 33 of the spring member 3 abuts against the spring seat surface 42b of the base member 4, so that the spring member 3 is deformed (deformed so that the inside is twisted upward).

[0048] As shown in Figs. 3 and 4, the slope portion 42c is continuous with the outer side of the spring seat surface 42b and is formed at a position corresponding to the sixth extension portion 33c of the locking portion 33. As shown in Fig. 3, the slope portion 42c is configured as an inclined surface that inclines upward at a predetermined angle toward the outer periphery. For this reason, as shown in Fig. 3(b), when the locking portion 33 of the spring member 3 is elastically deformed in the outward direction by receiving a pressing force from the fixing member 1, the sixth extension portion 33c of the locking portion 33 is guided (moved) upward along the slope portion 42c. The inclination angle of the slope portion 42c is set by experiment or simulation so that the outward component (elastic energy in the horizontal direction) is larger than the vertical component (elastic energy in the vertical direction) when the locking portion 33 of the spring member 3 is elastically deformed by receiving a pressing force from the fixing member 1. This makes it possible to ensure a good restoring force for returning the shape of the spring member 3, and to ensure the reliability of the operation of fixing the fixing member 1 to the fixed unit 2.

[0049] <Explanation of the holding member> The pressing member 5 is structured to sandwich the spring member 3 between the base member 4 and the pressing member 5 by covering the upper sides of the base member 4 and the spring member 3. Specifically, as shown in Figs. 2 and 3, the pressing member 5 includes an upper plate portion 51 having the insertion opening 51a, a cylindrical portion 52 extending downward from the outer edge of the upper plate portion 51 by a predetermined distance, and a flange portion 53 protruding from the middle position of the cylindrical portion 52 in the vertical direction to the outer periphery side. The spring member 3 and the base member 4 are accommodated in the inner space formed by the upper plate portion 51 and the cylindrical portion 52. The upper plate portion 51 is located above the spring member support portion 42 of the base member 4, and is arranged so as to sandwich (with a predetermined gap) the outer periphery of the supported portion 32 of the spring member 3 and the sixth extension portion 33c of the locking portion 33 between the upper plate portion 51 and the spring member support portion 42. For this reason, the upper plate portion 51 corresponds to the spring pressing portion in the present invention.

[0050] The insertion opening 51a is open in one direction (the right direction in FIG. 2, the downward direction in FIG. 4). In addition, as shown in FIG. 5 (a cross-sectional view at a position corresponding to line VV in FIG. 4 in a state where the fixing member 1 is fixed to the fixed unit 2), in a state where the fixing member 1 is fixed to the fixed unit 2, the upper surface of the flange portion 53 of the pressing member 5 and the upper surface of the bottom plate portion 41 of the base member 4 are flush with each other. Therefore, in a state where the fixing member 1 is inserted into the insertion opening 51a and the spring member 3 is engaged with the fixing member 1, the fixing member 1 can be removed from the fixed unit 2 by sliding the fixing member 1 in the opening direction of the insertion opening 51a (see arrow Y1 in FIG. 5). In this case, the fixed member 1 passes between the fifth extension portions 33b, 33b of the spring member 3, and during this passage, the fifth extension portions 33b, 33b of the spring member 3 are subjected to a pressing force from the fixed member 1, causing the locking portion 33 of the spring member 3 to elastically deform in the outward direction (see the virtual line in Figure 4), and when the fixed member 1 is removed, the locking portion 33 returns to its original shape in the inward direction.

[0051] The opening direction of the insertion opening 51a is set to the same direction for all of the fixed units 2, 2, ... installed in the vehicle. For example, the opening direction of the insertion opening 51a of each fixed unit 2, 2, ... attached to the floor panel Fp is set to the rear side of the vehicle. Therefore, when removing the fixing member 1 fixed to the fixed unit 2, the fixing member 1 is slid toward the rear side of the vehicle. Furthermore, the opening direction of the insertion opening 51a of each fixed unit 2, 2, ... attached to the wall panel Wp is set to the upward direction. Therefore, when removing the fixing member 1 fixed to the fixed unit 2, the fixing member 1 is slid upward.

[0052] - Explanation of how to fix items - Next, an operation for fixing an article (operation for fixing the lower part of the table Ta to the floor panel Fp) using the fixing member 1 and the fixed unit 2 configured as described above will be described.

[0053] Fig. 3(a) shows the state at the start of the article fixing operation. As shown in Fig. 3(a), with the center positions of the pressing member 5 and the base member 4 aligned with the center position of the fixing member 1, the fixing member 1 is inserted from above into the insertion opening 51a of the pressing member 5 (see Fig. 2).

[0054] FIG. 3(b) shows a state during the article fixing operation. As shown in FIG. 3(b), as the fixing member 1 is inserted into the insertion opening 51a of the pressing member 5, the outer peripheral surface 14a of the base abutting portion 14 of the fixing member 1 abuts against the locking portion 33 of the spring member 3, and a pressing force acts on the locking portion 33 in the outward direction. As a result, the locking portion 33 elastically deforms toward the outer peripheral side. Since the slope portion 42c of the base member 4 is present outside the sixth extension portion 33c of the spring member 3, as the sixth extension portion 33c moves toward the outer peripheral side, the sixth extension portion 33c moves upward along the slope portion 42c. In other words, the locking portion 33 of the spring member 3 is raised from the spring seat surface 42b of the base member 4.

[0055] In this state, the fixing member 1 is further inserted into the insertion opening 51a of the pressing member 5, and when the fixing member 1 reaches a predetermined insertion position (a position where the lower end of the base abutment portion 14 abuts against the protrusion 41b) as shown in Figure 3 (c), the locking portion 33 of the spring member 3, which is raised above the spring seat surface 42b, fits into the locking groove 15 of the fixing member 1, and returns to its shape inwardly to be locked in the locking groove 15. As described above, when the fixing member 1 reaches a predetermined insertion position, the bottom surface 15a of the locking groove 15 is located above the spring seat surface 42b of the base member 4, but since the locking portion 33 of the spring member 3 is raised above the spring seat surface 42b, the locking portion 33 easily enters the locking groove 15, and the inner peripheral portion of the locking portion 33 of the spring member 3 abuts against the bottom surface 15a of the locking groove 15, and the outer peripheral portion of the locking portion 33 of the spring member 3 abuts against the spring seat surface 42b of the base member 4. In other words, the spring member 3 is in a deformed state. Therefore, the fixing member 1 is fixed to the fixed unit 2 with the spring member 3 biasing the fixing member 1 downward.

[0056] On the other hand, when there is a request to change the installation location of the table Ta and the fixing member 1 fixed to the fixed unit 2 is to be removed, as described above, the fixing member 1 is slid in the direction of opening the insertion opening 51a to remove the fixing member 1 from the fixed unit 2 (see arrow Y1 in FIG. 5). This makes it possible to install the table Ta in another location by performing the operations shown in FIGS. 3(a) to 3(c) again.

[0057] -Effects of the embodiment- As described above, in this embodiment, in the process of inserting the fixing member 1 into the fixed unit 2, the spring member 3 is elastically deformed in the direction along the insertion direction and in the outward direction perpendicular to the insertion direction, and when the fixing member 1 reaches a predetermined insertion position and the spring member 3 is fitted into the locking groove 15 of the fixing member 1, the deformation of the spring member 3 urges the fixing member 1 downward. This allows the table Ta to be stably fixed without using a magnet, and makes it easy to attach and detach the table Ta. As a result, a stable fixed state can be maintained even when a sudden input (input in the horizontal direction) occurs, such as when the vehicle is suddenly braked. In addition, since no magnet is used, costs can be reduced, and there is no problem caused by the attraction of magnetic materials such as iron sand.

[0058] Furthermore, in this embodiment, the spring member support portion 42 of the base member 4 is provided with a slope portion 42c, and the locking portion 33 of the spring member 3 is guided along the slope portion 42c, so that the locking portion 33 can be easily locked into the locking groove 15 of the fixed member 1. This ensures the reliability of the operation of fixing the fixed member 1 to the fixed unit 2 and the stability of the fixed state of the table Ta.

[0059] In this embodiment, the bottom plate portion 41 of the base member 4 is curved and bulges upward. This allows the deformation of the bottom plate portion 41 to absorb any variation in shape that may occur in the components that make up the fixing structure. This allows the fixing member 1 to be stably abutted against the bottom plate portion 41 of the base member 4, preventing any wobbling between these members. This allows the table Ta to be stably fixed.

[0060] In addition, in this embodiment, the spring member 3 is made of metal, which makes it possible to eliminate temperature dependency and stably obtain high support strength compared to the case where a resin spring member is used. In addition, durability against repeated loads can be improved.

[0061] -Variations- Next, a modified example will be described. In this modified example, the cross-sectional shape of the spring member 3 (which is circular in the above-mentioned embodiment) is different from that of the above-mentioned embodiment. Since the other configurations and operations are the same as those of the above-mentioned embodiment, the cross-sectional shape of the spring member 3 will be mainly described here.

[0062] Fig. 6 is a cross-sectional view of the spring member 3' in this modified example. As shown in Fig. 6, the cross-section of the spring member 3' in this modified example has an irregular shape. Specifically, the height dimension is slightly longer than the width dimension, and the outer edge shape of the upper surface is curved so as to bulge slightly upward, and the outer edge shape of the lower surface is curved so as to bulge slightly downward.

[0063] By adopting such a cross-sectional shape, even if the spring member 3' in this modified example has the same cross-sectional area as the spring member 3 in the above-mentioned embodiment, the second moment of area of ​​the spring member 3' in this modified example is small, and a large deformation amount for an input load can be obtained. In other words, the spring member 3' can be easily deformed in the outward direction when it receives a pressing force from the fixing member 1 (when the cross-sectional area is the same as when the cross-sectional area is circular, the spring member 3' can be easily deformed by reducing the second moment of area), and the speed of shape restoration can be obtained. This ensures the reliability of the operation of fixing the fixing member 1 to the fixed unit 2. Also, in this modified example, by making the spring member 3' easily deformed in the outward direction when it receives a pressing force from the fixing member 1, the outward component (elastic energy in the horizontal direction) can be made larger than the vertical component (elastic energy in the vertical direction) when the locking portion 33 of the spring member 3 is elastically deformed by receiving a pressing force from the fixing member 1, and this ensures a good restoring force for the shape restoration of the spring member 3. Moreover, it is possible to reduce the size of the locking portion 33 of the spring member 3, and the size of the fixed unit 2 as a whole can also be reduced.

[0064] -Other embodiments- The present invention is not limited to the above-described embodiment and modified examples, and all modifications and applications encompassed within the scope of the claims and equivalents thereto are possible.

[0065] For example, in the above embodiment and modified example, the present invention has been described as being applied to a fixing structure for installing an article such as a table Ta or a shelf Sh in a vehicle interior of a camper. However, the present invention is not limited to this, and can be applied to fixing an article to various objects.

[0066] Furthermore, in the above embodiment and modified example, the spring member 3 is made of metal, but a spring member made of resin may also be used. [Industrial Applicability]

[0067] The present invention is applicable to a fixing structure for installing a table or shelf inside a vehicle interior of a camper van. [Explanation of symbols]

[0068] 1...Fixing member 15...Engagement groove 15a...Bottom surface (contact surface) 2: fixed unit (fixed means) 3: spring member 32: supported portion 33: locking portion 4...Pedestal member 41...Bottom plate portion 42a...Spring fixing portion 42b...Spring seat surface 42c... Slope portion 5... Retaining member 51... Upper plate portion (spring retaining portion) 51a... Insertion opening Ta…Table (item) Sh…Shelf (item) Fp…Floor panel (fixed object) Wp…Wall panel (fixed object)

Claims

1. 1. An article fixing structure for fixing an article to an object by inserting a fixing member attached to the article into a fixing means attached to the object and fixing the article to the object, comprising: The fixed means is a spring member having a locking portion which is elastically deformed in a direction along the insertion direction and in an outward direction perpendicular to the insertion direction by receiving a pressing force from the fixing member during the process of inserting the fixing member into the fixing means, and which returns to its original shape in an inward direction so as to fit into a locking groove formed in an outer periphery of the fixing member when the fixing member reaches a predetermined insertion position, and which is locked in the locking groove; and a supported portion which is continuous with the locking portion and extends outward from the outer periphery; a base member having a bottom plate portion that comes into contact with the fixing member when the fixing member reaches the predetermined insertion position, and a spring seat surface that supports an outer circumferential portion of the locking portion of the spring member; a spring pressing portion facing the outer circumferential portion of the locking portion of the spring member supported by the spring seat surface of the base member, and a pressing member having an insertion opening into which the fixing member is inserted, the locking groove of the fixed member has an abutment surface with which an inner peripheral portion of the locking portion of the spring member abuts when the fixed member reaches the predetermined insertion position, A fixing structure for an article, characterized in that, when the fixing member reaches the predetermined insertion position, the position of the abutment surface of the locking groove is located upstream of the position of the spring seat surface of the base member in the insertion direction, and the inner peripheral portion of the locking portion of the spring member abuts against the abutment surface, and the fixing member is urged downstream in the insertion direction by deformation of the spring member due to the abutment of the outer peripheral portion of the locking portion of the spring member against the spring seat surface.

2. The article fixing structure according to claim 1, A fixing structure for an article, characterized in that the base member has a slope portion that slopes outwardly and upstream of the insertion direction so as to guide the outer circumferential portion of the engaging portion of the spring member toward the upstream side of the insertion direction when the spring member elastically deforms outward due to a pressing force from the fixing member.

3. The article fixing structure according to claim 1 or 2, The structure for fixing an article, wherein the bottom plate portion of the base member has a curved shape that bulges toward the upstream side in the insertion direction.

4. The article fixing structure according to claim 1 or 2, A fixing structure for an article, wherein the base member is provided with a spring fixing portion that restricts the position of the supported portion of the spring member so as to restrict deformation of the supported portion in the outward direction.

5. The article fixing structure according to claim 1 or 2, 1 is a cross-sectional view of a spring member according to the first embodiment of the present invention;

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