JP2012228500A - Angle adjusting fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an angle adjusting fitting in which a skin always receives proper tension so that a loose wrinkle is not generated.SOLUTION: In this angle adjusting fitting comprising: a hinge connection pin member 13 provided at a swing axial center; and a mounting arm 46 and a swing piece part 11 hinge connected with each other by the hinge connection pin member 13, wherein the mounting arm 46 is fixed to a fixing base part, and allows a rest part to swing in an erection direction A while preventing the sing in a tilt direction to hold it in a desired tilt angle, the angle adjusting fitting comprises a skin wrinkle generation prevention mechanism 50 preventing the generation of a loose wrinkle in a common skin with the swing of the rest part in the erection direction A. The skin wrinkle generation prevention mechanism 50 comprises a bracket 48 reciprocating and translating between a base end 45 side and a distal end side of the swing piece part 11 while maintaining parallelism with the swing piece part 11, and a distance to the most distal end part 48A of the bracket 48 may be freely expanded and contracted about the axial center of the hinge connection pin member 13.

Description

  The present invention relates to an angle adjusting bracket used for furniture such as a sofa and a chair.

2. Description of the Related Art Conventionally, angle adjusting brackets that can recline headrests, armrests, footrests, and the like provided on furniture such as sofas and chairs have been widely used.
As described in Patent Document 1, the inventor can hold a reclining portion that is capable of swinging the reclining portion in the standing direction while preventing the reclining portion from swinging in a tilting direction at a predetermined multi-step tilt angle. An adjustment bracket is proposed.

Japanese Patent No. 4296223

However, as shown in FIG. 17, the furniture using the conventional angle adjusting bracket 55 raises the reclining rest portion 51 such as the headrest, the armrest portion, and the footrest portion from the tilted posture in the standing direction A. In some cases, a slack wrinkle 53 may be generated in the epidermis 52.
For example, in the case of luxurious furniture with leather upholstery, there is a problem that 皺 53 is particularly likely to occur, and when such 皺 53 is generated, the comfort (sitting comfort) is lowered and the aesthetics are significantly impaired. It was.

  Therefore, the present invention provides that the skin of the furniture provided with the reclining (tilting) rest portion 51 is always free of wrinkles 53 and maintains a beautiful smooth surface--a tensioned surface--. An object of the present invention is to provide a possible angle adjusting bracket.

  Therefore, the present invention has a rest portion that can be tilted around a horizontal swing axis, and the rest is used for furniture covered with a fixed base with a common skin, and is disposed on the swing shaft. A pivot pin member provided, a mounting arm pivoted by the pivot pin member, and a swinging piece portion. The mounting arm is fixed to the fixed base, and the rest portion is raised. In an angle adjustment fitting that enables swinging in the direction while preventing swinging in the tilting direction and holding it at a desired tilting angle, the common skin is attached to the common skin as the rest portion swings in the standing direction. A skin wrinkle generation preventing mechanism that suppresses the occurrence of slack wrinkles, and further, the skin wrinkle generation preventing mechanism is maintained in parallel with the rocking piece portion, while the proximal end side and the distal end of the rocking piece portion With brackets that reciprocally translate between the sides Elongated shortened freely configure the distance to the leading edge portion of the bracket around the point on the axis of emission element.

  The mounting arm includes a cover member at the base end thereof, and the cover member has a thin circular shape centered on the axis of the pivot pin member and does not damage the inner surface of the common skin. Thus, there is no protrusion on the circumferential surface.

  According to the angle adjusting bracket according to the present invention, the above-mentioned object can be achieved, and in the standing posture of the rest portion, the skin does not receive a moderate tension and does not sag and has a good appearance. It is suitable for thick sofas and chairs.

It is the simple perspective view which showed an example of the usage location of the angle adjustment metal fitting which concerns on this invention. FIG. 5 is an operation explanatory diagram for sequentially illustrating the operation of the skin wrinkle generation preventing mechanism according to the embodiment of the present invention. It is a perspective view of one embodiment. It is a side view which shows a maximum inclination state. It is a side view which shows the state which stood up a little from the maximum inclination attitude | position. It is a side view which shows the state which stood to the standing posture vicinity. It is a side view which shows a standing posture. It is the side view which showed the state of lock release. It is a perspective view which shows other embodiment. It is a left view which shows the maximum inclination state. It is a right view which shows a maximum inclination state. It is the partially broken left view which abbreviate | omitted and illustrated the skin wrinkle generation | occurrence | production prevention mechanism. It is the partially broken front view which abbreviate | omitted and illustrated the skin wrinkle generation | occurrence | production prevention mechanism. It is a left side view for principal part composition explanation showing the maximum tilted state. It is a left side view for principal part composition explanation showing a standing posture. It is operation | movement explanatory drawing of an angle adjustment mechanism. It is the explanatory perspective view which showed the use condition of the prior art example, and showed the problem of the prior art example.

Hereinafter, the present invention will be described in detail based on the illustrated embodiment.
As illustrated in FIG. 1, the angle adjusting bracket of the present invention is used for furniture such as a sofa S or a chair (not shown) provided with a reclining (tiltable) rest portion 3. A plurality of angle adjusting brackets 1 are used on the sofa S.

In the sofa S illustrated in FIG. 1, the seat portion 41 and the backrest portion (back portion) 40 are held by the left and right leg portions 42 and 42.
The backrest portion (back portion) 40 has a rest portion 3 that can be tilted around a horizontal swing axis L _13. Specifically, the rest portion 3 is a headrest portion 30. That is, the backrest portion 40 is composed of a fixed base portion 40F at a lower position and a headrest portion 30 that can be tilted at an upper position, and the headrest portion 30 (rest portion 3) has a common skin 28 together with the fixed base portion 40F. Coated.
The seat portion 41 has a rest portion 3 that can be tilted around a horizontal swing axis L _13. Specifically, the rest portion 3 is a footrest portion 31. That is, the seat 41 includes a horizontal fixed base 41F at the sofa rear position and a tiltable footrest 31 at the front (front) position. The footrest 31 (rest 3) is a fixed base. Along with 41F, it is covered with a common skin 28.

The armrest portion 43 has a rest portion 3 that can be tilted around a horizontal swing axis L _13. Specifically, the rest portion 3 is an armrest portion 32. That is, the armrest portion 43 includes a lower fixed base portion 43F composed of the leg portions 42 and the like, and an armrest portion 32 that can be tilted outwardly from the upper position, and the armrest portion 32 (rest portion 3). ) Is covered with a common skin 28 together with the fixed base 43F.
In this way, the outer skin is entirely covered with the (continuous) common skin 28 from the fixed side (fixed base portions 40F, 41F, 43F) to the rest portion 3.

The angle adjusting bracket 1 is configured to hold the desired tilt angle by preventing the swing in the tilt direction B in multiple stages while allowing the rest portion 3 to swing in the standing direction A.
The angle adjusting bracket 1 shown in FIG. 1 corresponds to the bracket shown in FIGS. 9 to 13, and the bracket shown in FIGS. 3 to 7 is disposed at the same position in FIG. 1 as desired. You can also.
The difference between the embodiment of FIGS. 3 to 7 and the other embodiments of FIGS. 9 to 13 is mainly the rotational resistance moment M (which suppresses the swinging of the rest portion 3 in the standing direction A). The presence or absence of the elastic member 2 to be applied) (see FIG. 12).

  The greatest feature point of the angle adjusting bracket 1 according to the present invention is that the skin wrinkle generation preventing mechanism that suppresses the occurrence of slack wrinkles in the common skin 28 as the rest portion 3 swings in the standing direction A. 50. However, in FIG. 1, the skin wrinkle generation preventing mechanism 50 is shown in a simplified manner, and only the bracket 48 to which the inner frame 49 (shown by a dotted line) of the rest portion 3 is fixed is drawn in the drawing. . (The details of the mechanism 50 will be described later with reference to FIGS. 2 to 11).

12 and 13 are drawings in which the skin wrinkle generation preventing mechanism is omitted. As shown in FIGS. 12 and 13 and FIGS. 14 to 16, the angle adjusting bracket 1 of the present invention is disposed in rotational symmetric positions pair of parallel wall portions 12a formed in a circular shape, and 12a, the wall portion 12a, the pivot axis L ₁₃ in each of 12a as a symmetry axis about a pivot axis L ₁₃ The four wedge-shaped window portions 5, 5, 5, 5, and the wedge-shaped window portion 5 are movable at the 180-degree rotationally symmetric position around the swing axis L _13. and a pair of floating wedge members 4 having a tooth surface 4a on one side, the wall portion 12a, the tooth surface 4a around the pivot axis L ₁₃ with provided between 12a in mesh with possible external-toothed A pair of arcuate gear portions 11b, 11b to be formed, and spring wire members 6, 6 that constantly urge and bias the floating wedge members 4, 4 toward the gear portions 11b, 11b. That.

Walls 12a, 12a is extended to the mounting piece portion 12, are formed through the gear portion 11b, the swing axis L ₁₃ and concentric central hole formed in 11b capable interior face-to-face plate.
The wedge-shaped window portion 5, the inner side of the pivot axis L ₁₃ closer to the arcuate surface 5b, to form an arc-shaped wedge face 5a on the outer side. Each wedge surface 5a is decentered with pivot axis L _13, and is formed as a sequential around the induction axis Y of the pivot axis L ₁₃ as a symmetrical axis as a rotation symmetric position every 90 degrees. That is, the distance between the wedge surface 5a and the gear portion 11b is gradually reduced (reduced) as it approaches the clockwise direction in FIG. Further, a floating stepped portion 8 that projects from the inner arcuate surface 5 b and guides the floating wedge member 4 is formed. Moreover, it has the retreat space part 9 which can accommodate the floating wedge member 4 of the state which is not meshing with the gear part 11b (meshing release state).

The pair of floating wedge members 4 and 4 are respectively inserted into wedge-shaped window portions 5 and 5 arranged at rotationally symmetric positions of 180 degrees. The floating wedge member 4 is formed to be slightly larger than the gap dimension between the wall portions 12a and 12a, and protrudes at both end portions from the outer surfaces of the wall portions 12a and 12a in a state of being inserted into the wedge-shaped window portion 5. The floating wedge member 4 has a tooth surface 4a on one surface side, and an arcuate contact surface 4b that contacts the wedge surface 5a on the other surface side. The floating wedge member 4 has a guiding gradient surface 14 that contacts the floating stepped portion 8 and guides itself in a direction away from the gear portion 11b. The guiding gradient surface 14 is formed at the rear edge of the tooth surface 4a.
A pair of gear portions 11b, 11b, the wall portion 12a, and is swingably pivotally connected to the pivot axis L ₁₃ around at between 12a. Gear portion 11b, 11b has an outer floating wedge member 4 is formed through the swinging piece 11 into the insertion can escape window portions 18 and 18, the rotational symmetry at 180 degrees pivot axis L ₁₃ as a symmetrical axis It is formed in a tooth shape. The gear portions 11b and 11b have a shape in which stress concentration is unlikely to occur at the base end portion of the swing piece portion 11. Further, the gear portion 11b is formed with a pushing projection 15 for pressing the floating wedge member 4 against the retracting space portion 9 on one end side (meshing end point side) and on the other end side (meshing start point side). An extrusion protrusion 16 is formed to push out the floating wedge member 4 accommodated in the retreat space 9.

The spring wire 6 is cut into a predetermined length and is formed in a single character. The spring wire 6 is externally fitted to the support portion 17 by bending one end into a straight line and bending the other end into a hook shape or a circular shape. The spring wire 6 is elastically deformed in an arc shape in contact with the abutting surface 4 b, and constantly restores a restoring force to the floating wedge member 4.
When the gear portion 11b swings and the tooth surface 4a meshes with the gear portion 11b and the floating wedge member 4 moves, the contact surface 4b is guided by the wedge surface 5a, and the floating wedge member 4 is guided to the gear portion 11b. It is formed so as to be arranged like a wedge between the wedge surfaces 5a. That is, in the floating wedge member 4, the tooth surface 4a meshes with the gear portion 11b, the abutment surface 4b abuts on the wedge surface 5a, and the gear portion 11b (oscillating piece portion 11) moves in one direction (tilt direction). B) is restricted from swinging.

Walls 12a, 12a is sandwiched from the oscillation axis L ₁₃ direction by the cover member 7, 7 a thin circular (disc-shaped). The pivoting pin member 13 pivots the wall portions 12a and 12a, the gear portions 11b and 11b, and the cover members 7 and 7 concentrically. That is, the wall portions 12a, 12a, the wedge-shaped window portions 5, 5, 5, 5, the floating wedge members 4, 4, the gear portions 11b, 11b, and the spring wire members 6, 6 are assembled to form a cover member. The pivoting portion 10 is configured to be accommodated between the seven and seven.
The thickness dimension d of the elastic member 2 is set to 15% to 100% with respect to the thickness dimension W ₀ of the pivoting portion 10 (see FIG. 13). If the thickness dimension d of the elastic member 2 is smaller than 15% of the thickness dimension W ₀ of the pivoting portion 10, sufficient strength and rigidity of the elastic member 2 cannot be secured, and the rest portion 3 is in the final tilted state. Cannot be held stably. On the other hand, if the thickness dimension d of the elastic member 2 is larger than 100% of the thickness dimension W ₀ of the pivoting part 10, the width dimension of the angle adjusting bracket 1 becomes excessive, and the attachment to the sofa S is restricted. There is a fear.
In addition, as an internal mechanism of the pivoting part 10 of the angle adjusting bracket 1, it may have a ratchet mechanism (not shown) by meshing a claw and a gear tooth, as long as the gist of the present invention is not changed. Design changes are possible.

The angle adjusting bracket 1 of the present invention is the same as the embodiment shown in FIGS. 2 to 8 and the other embodiments shown in FIGS. 9 to 13 (as shown in FIG. 1). )) A swing arm 47 attached to the rest portion 3, a mounting arm 46 fixed to the fixed base portions 40F, 41F, 43F, and a pivoting pin member 13 pivoting the arms 47, 46 are provided. ing.
The mounting arm 46 includes the mounting piece portion 12 pivotally attached to the pivoting pin member 13 in a non-rotating state, and the cover member 7 fixed to the proximal end of the mounting piece portion 12. . Thus, the cover member 7 and the strip-shaped attachment piece 12 are connected in a non-rotating state (as an integral shape).

Further, the swing arm 47 includes a swing piece portion 11 having a base end 45 pivotally attached to the pin member 13, a bracket 48 to which the inner frame 49 of the rest portion 3 is fixed, and the bracket 48 and the swing piece portion. 11 and two parallel link pieces 34 and 35 constituting the parallel link mechanism H.
This parallel link mechanism H is composed of a bracket 48, a swing piece 11 and link pieces 34, 35 that are pivotally connected to each other by four pins 57, 58, 59, 60, and the bracket 48 always swings. While maintaining parallel to the piece 11, the reciprocating parallel movement between the base end 45 side and the tip end 44 side of the swing piece 11 can be freely performed as shown in FIGS. 2 (A), (B), (C) and (D). is there.

The skin wrinkle generation preventing mechanism 50 includes the bracket 48, the link pieces 34 and 35 that connect the bracket 48 and the swing piece portion 11, one of the link pieces 34 and 35, and the cover member 7. And a connecting arm 37 for connecting the two.
The arm length L ₄₇ of the oscillating arm 47 is increased by moving the bracket 48 in the tip direction P --- the direction of the tip 44-- as the rest 3 swings in the standing direction A. The connecting arm 37 fulfills the action of
In the present invention, the arm length L ₄₇ of the oscillating arm 47 is the bracket centered on the axis of the pivot pin member 13 ---- that is, the horizontal oscillating axis L ₁₃ ---. The distance (dimensions) to the 48 most advanced parts 48A.

More specifically, the connecting arm 37 is formed of a bent plate piece, the base end is pivotally attached to the thin disc-shaped cover member 7 by a pin, and the tip is pivoted by a pin 39 ( A pivot piece is pivotally attached to an intermediate portion in the longitudinal direction of the link piece 34 (on the side close to the pivot pin member 13).
The pivot position of the pin 38 at the base end is opposite to the side where the bracket 48 is located with respect to the axis L ₁₃ --the direction opposite to the tip--and the side where the mounting piece 12 is present. Set on the opposite side.
By providing the pins 38 and 39 as described above, the connecting arm 37 swings the arm 34 that forms a part of the parallel link mechanism H, and the bracket 48 that forms the other part of the parallel link mechanism H. the distal direction P, is moved as in Figure 2 (a) → (B) → (C), or FIG. 4 → Fig 5 → Fig. 6 → move as shown in Figure 7, the length of the arm L ₄₇ The inner frame 49 of the rest 3 fixed to the bracket 48 is moved in the direction of arrow P in FIG. 1, and the (same) skin 28 is pulled when the rest 3 is actuated in the standing direction A. Thus, it is possible to prevent the slack wrinkle 53 (see FIG. 17) from occurring in the epidermis 52.

2 or 4 to 7, the cover member 7 has a thin disc shape, and there is no protrusion (protrusion) on the circumferential surface. There is an advantage that the pin member 13 is not damaged from the (back surface), and the connecting arm 37 is a disc-shaped cover member 7 when viewed from a direction parallel to the corresponding horizontal swing axis L _13. And at least one of the swinging piece portions 11 always overlaps and swings in the directions of arrows (A) and (B). That is, the connecting arm 37 according to the present invention has a curved shape or a U-shaped (folded) shape, and the dimensions of the arm 37 and the pivot positions at both ends --- the arrangement of the pins 38 and 39. By setting the position so that the arm 37 always appears to overlap with either the cover member 7 or the swing piece 11, the skin 28 is prevented from being damaged from the inner surface (back surface).

  The elastic member which gives the rotational resistance moment M which suppresses rocking | fluctuation to the standing direction A of the rest part 3 in FIGS. 9-13 and FIG. 2—specifically, the spiral spring 20——is attached to the side surface of the cover member 7 opposite to the side surface where the connecting arm 37 is disposed. As a result, as apparent from FIG. 9, the thickness dimension in the direction parallel to the axis of the pin member 13 can be reduced, thereby achieving compactness.

The elastic member 2 stands up with a resistance sufficient to hold the rest 3 in the final tilted state against the tension acting on the rest 3 in the final tilted state when the skin 28 receives some load. Oscillation in the direction A is suppressed.
In the present invention, “to prevent the swinging in multiple stages” means that the rest part 3 is swung in the standing direction A from the final tilted state to the final standing state, and is in seven stages at an equal pitch. This means that the posture holding angle is set as described above, and the rest portion 3 swinging in the standing direction A is regulated in stages so as not to return in the tilting direction B.
Specifically, taking the headrest portion 30 as an example, in the range from the final tilted state in which the headrest portion 30 is in a horizontal posture to a vertical posture, for example, 16 posture holding angles are set at an equal pitch, The headrest 30 that swings forward (standing direction A) is regulated in stages so as not to return backward (tilting direction B). Or, specifically, taking the footrest part 31 as an example, in the range from the final tilted state in which the footrest part 31 is in a vertical posture to the horizontal posture, for example, 16 posture holding angles are set at equal pitches, The footrest 31 that swings in the (standing direction A) is regulated in a stepwise manner so that it does not return downward (tilting direction B).

Further, as shown in FIGS. 12 and 13, the swing piece 11 attached to the rest 3 via the parallel link mechanism H, and the attachment piece fixed to the fixed side of the sofa S, as shown in FIGS. 12 and a pivot pin member 13 that is assembled to the attachment piece 12 in a non-rotating manner and pivotally connects the swing piece 11 and the attachment piece 12. The pivot pin member 13 is pivotally mounted so as to be swingable about the swing axis L ₁₃ while being fitted to the mounting piece 12. Pivotally pin member 13, one end and a large diameter of the head 33, forming a quadrature-shaped engaging groove 13a on the head 33 to the pivot axis L ₁₃ direction. The other end of the pivot pin member 13 has a small diameter and is secured by caulking or the like in an assembled state.
The elastic member 2 is a spiral spring 20 made of a spiral metal spring, and has an outer end 22 bent in a U-shape projecting toward the proximal end of the swing piece 11. The inner end portion 21 that is fixed to the stopper portion 11a and bent at a substantially right angle is fixed to the locking groove 13a of the pivot pin member 13. The spiral spring 20 suppresses the swinging of the swinging piece portion 11 in the standing direction A even when the tensioned skin 28 is further subjected to the load in the resting portion 3 in the final tilted state. A resistance force that does not stand up is elastically applied to the oscillating piece 11 as a rotational resistance moment M.

  The shape of the bracket 48 is an inverted L shape when viewed from the longitudinal direction of the oscillating piece 11, and an inner frame 49 is secured to the upper wall (by screws, bolts, rivets, etc., not shown). 3 and 9, and a vertical wall has a U-shaped notch recess 29 into which a pin 39 can be fitted as shown in FIGS. . By having this cut-out recess 29, the pin 39 is fitted and becomes extremely compact (see FIG. 2A, FIG. 3, FIG. 10, etc.).

The use method (action) of the angle adjusting bracket of the present invention described above will be described.
First, the skin 28 is stretched from the fixed side of the sofa S to the rest portion 3 in the process of manufacturing the sofa S shown in FIG. At this time, the angle adjusting brackets 1 and 1 for attaching the rest part 3 to the fixed side of the sofa S have the rotational resistance moment M (see FIGS. 10 and 12) by the elastic member 2 to swing the rest part 3 in the standing direction A. Suppress movement. While the rest part 3 maintains the final tilted state, the skin 28 is given an appropriate tension and is stretched. Therefore, when the rest part 3 is used upright, there is a margin in the skin 28, but the occurrence of wrinkles can be reduced. . In the embodiment of FIG. 9 to FIG. 13 of the present invention, since the skin wrinkle generation prevention mechanism 50 is added (added), the skin 28 is not attached to the rest 28 when the rest portion 3 is used upright. , (Conventional as shown in FIG. 17) 皺 53 does not occur, giving a smooth and beautiful feeling.

  Next, when a person sits down and a load is applied to the seat portion 41 and the backrest portion 40 on the sofa S in which the rest portion 3 is swung in the tilt direction B to the limit of the movable range, that is, in the final tilted state, The epidermis 28 of the part 41 sinks due to a human load, or the epidermis 28 of the backrest part 40 is dragged downward, and the tension acting on the rest part 3 increases. At this time, the elastic member 2 suppresses the swinging of the rest portion 3 in the standing direction A using the rotational resistance moment M as a resistance force, and reliably holds it in the final tilted state.

  Thereafter, as shown in FIGS. 1 and 16, the rest portion 3 is raised in the standing direction A against the rotational resistance moment M from the final tilted state. In FIG. 16 (a), the floating wedge member 4 has a tooth surface 4a meshed with the gear portion 11b and a contact surface 4b in contact with the wedge surface 5a. As shown in FIG. 16 (b), when the gear portion 11b is swung in the standing direction A, the contact surface 4b of the floating wedge member 4 is separated from the wedge surface 5a to form a slight gap g. When the rest portion 3 is further swung in the standing direction A as shown in FIG. 16 (c), the guide gradient surface 14 of the floating wedge member 4 comes into contact with the floating stepped portion 8 of the wedge-shaped window portion 5, and the teeth The engagement between the surface 4a and the gear portion 11b is released, and the tooth surface 4a gets over with a clicking sound so that it is repelled by the gear portion 11b. When the swinging of the rest part 3 is stopped at a desired position, the floating wedge member 4 is pressed against the gear part 11b by the spring wire 6, and the tooth surface 4a meshes with the gear part 11b. Owing to the wedge action, the swinging of the rest portion 3 in the tilt direction B is restricted and held at a desired tilt angle.

1 and 2 and the above description, the mounting arm 46 is fixed to the rest 3 and the swing arm 47 is attached to the fixed bases 40F, 41F, 43F. However, it may be desirable (not shown). That is, the bracket 48 of the swing arm 47 is fixed to the inner frame of the fixed base portions 40F, 41F, 43F, and the mounting arm 46 is fixed to the inner frame 49 of the rest portion 3. At this time, horizontally pivot axis L ₁₃ is fixed base 40F, 41F, but so that the performing substantially translation movement or a substantially arc shape with respect to 43F, that slack creasing of the skin 28, as well Can be prevented. In addition, the inner frame 49 of the rest portion 3 has an advantage that the shape and configuration of the connecting / connecting portion with the mounting arm 46 can be easily changed in design.

  As shown in FIG. 15, when the rest portion 3 is swung by a predetermined amount to be in the final standing state, the pushing projection 15 abuts on the floating wedge member 4 as shown in FIG. Press. As shown in FIG. 16 (e), when the rest portion 3 is further swung in the standing direction A, the floating wedge member 4 is in sliding contact with the floating stepped portion 8 of the wedge-shaped window portion 5 on the guiding gradient surface 14. Guided (guided) to the retreat space 9. When the floating wedge member 4 is accommodated in the retreat space portion 9 (corresponding to FIG. 8), the meshing between the tooth surface 4a and the gear portion 11b is released, and swinging in the tilt direction B becomes free. Then, as shown in FIG. 16 (f), when the rest portion 3 is swung in the tilt direction B and restored to the final tilted state, the push-out projection 16 comes into contact with the floating wedge member 4, and the floating wedge member 4 is retracted. Extrude from space 9 In this way, as shown in FIG. 16A again, the tooth surface 4a meshes with the gear portion 11b and restricts the swinging of the rest portion 3 in the tilt direction B.

  The number of steps that the angle adjusting bracket 1 prevents the rest 3 from swinging in the tilting direction B is prevented by seven or more steps, which is referred to as “multi-step” in the present invention. However, in the present invention, the number of steps may be set to a plurality of steps of 2 to 6, but may be freely set, and moreover, it may be set to one step (single step). It is also possible.

  As described above, the present invention is used in the sofa S having the reclining rest portion 3 and is desired to prevent the rest portion 3 from swinging in the tilting direction B while allowing the rest portion 3 to swing in the standing direction A. Since the elastic member 2 for applying the rotational resistance moment M that suppresses the swinging of the rest portion 3 in the standing direction A is provided in the angle adjustment metal fitting that is held at the inclination angle, the rest portion is provided by the rotational resistance moment M. 3 can be prevented from swinging in the standing direction A by being pulled by the skin 28 of the sofa S, and when the sofa 3 is used with the rest portion 3 in the final tilted state, the rest portion 3 does not rise up unexpectedly. , Can maintain a stable posture. Further, the skin 28 can be stretched with an appropriate tension while maintaining the posture in which the rest 3 is tilted to the final tilted state, and the skin 28 is not required when the rest 3 is used in the standing state. It can be produced nicely without sagging.

The present invention, as described above, furniture which has a tiltable rest portion 3 in the horizontally pivot axis L ₁₃ around, the rest portion 3 is covered with a common skin 28 fixed base 40F, 41F, with 43F And the swinging in the tilting direction B is prevented in a single step or a plurality of steps (multiple steps) while allowing the rest portion 3 to swing in the standing direction A and held at a desired tilt angle. Since the angle adjusting bracket is provided with a skin wrinkle generation preventing mechanism 50 that suppresses the occurrence of slack wrinkles on the common skin 28 as the rest portion 3 swings in the standing direction A. As you stand up in the standing direction A from the tilted posture, tension force acts on the skin 28, no loose wrinkles occur, keeps a beautiful smooth surface, especially the feeling of luxurious furniture with leather upholstery And aesthetics can be improved.

Further, a swing arm 47 attached to the rest portion 3, a mounting arm 46 fixed to the fixed base portions 40F, 41F, 43F, and a pivotal connection of the swing arm 47 and the mounting arm 46. The swing arm 47 includes a swing piece portion 11 on which a base end 45 is pivotally attached to the pin member 13, and a bracket 48 to which an inner frame 49 of the rest portion 3 is fixed. The bracket 48 and the oscillating piece portion 11 are connected to each other to form a parallel link mechanism H. The mounting arm 46 is based on the pin member 13. And a cover member 7 fixed to the base end of the mounting piece 12. The skin wrinkle generation preventing mechanism 50 includes the bracket 48, the bracket The two link pieces 34 and 35 constituting the parallel link mechanism H by connecting the swing piece 48 and the swing piece portion 11, and the link piece 34 , 35 and the cover member 7 are connected to each other and the bracket 48 is moved in the distal direction P as the rest portion 3 swings in the standing direction A. The connecting arm 37 for increasing the arm length L ₄₇ is provided, so that the number of parts as an angle adjusting bracket can be reduced, the axial dimension is small, and the overall structure is compact. Simple, lightweight and inexpensive. In particular, regardless of the compact size, the stroke of the bracket 48 (the amount of movement in the front end direction P) can be made sufficiently large.

The cover member 7 has a thin disc shape, and the connecting arm 37 has a disc shape when viewed from a direction parallel to the horizontal swing axis L _{13 to} which the axis of the pin member 13 corresponds. Since the shape and dimensions and the pivotal positions at both ends are set so as to always overlap at least one of the cover member 7 and the swing piece 11, a local small rise (small bump) is formed on the skin 28. It is possible to obtain a comfortable furniture such as a sofa without generating a ridge, and to prevent the skin 28 from being damaged from the back side. Moreover, the results are excellent in terms of aesthetics from the outside.
Further, a spiral spring 20 that applies a rotational resistance moment M that suppresses swinging of the rest portion 3 in the standing direction A is provided on the side surface of the cover member 7 opposite to the side surface on which the connection arm 37 is disposed. As a result, the thickness dimension in the axial direction can be reduced to achieve a compact structure, the rotational resistance moment M can be reliably generated, and it is easy to attach to the interior of a sofa or the like.

3 Rest part 7 Cover member
11 Swing piece
13 Pivoting pin member
28 (Common) Epidermis
40F, 41F, 43F Fixed base
45 proximal
46 Mounting arm
48 Bracket
48A cutting edge
50 Skin wrinkle prevention mechanism A Standing direction B Tilt direction L ₁₃ Oscillation axis L ₄₇ Arm length

Claims (2)

It has a rest part (3) that can be tilted around a horizontal oscillation axis (L ₁₃ ), and the rest part (3) is covered with a fixed base (40F) (41F) (43F) with a common skin (28). And a pivot pin member (13) disposed on the swing axis (L ₁₃ ), and a mounting arm pivoted to each other by the pivot pin member (13). 46) and a swinging piece portion (11), and the mounting arm (46) is fixed to the fixed base portion (40F) (41F) (43F) and the rising direction (A In the angle adjusting bracket that prevents the swinging in the tilting direction (B) and holds it at a desired tilting angle while allowing the swinging to
A skin wrinkle generation preventing mechanism (50) for suppressing the occurrence of slack wrinkles on the common skin (28) with the swinging of the rest portion (3) in the standing direction (A),
Further, the skin wrinkle generation preventing mechanism (50) is reciprocally parallel between the proximal end (45) side and the distal end side of the swinging piece portion (11) while keeping parallel to the swinging piece portion (11). A moving bracket (48) is provided, and the distance (L ₄₇ ) from the center of the pivot pin member (13) to the most distal portion (48A) of the bracket (48) can be extended and shortened. An angle adjustment bracket characterized by that.   The mounting arm (46) includes a cover member (7) at its proximal end, and the cover member (7) has a thin circular shape centered on the axis of the pivot pin member (13), The angle adjusting bracket according to claim 1, wherein there is no protrusion on the circumferential surface so as not to damage the inner surface of the common skin (28).

Images