JP2012135489A - Chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit a hanger device to be strongly attached to a backrest without using machine screws.SOLUTION: The backrest 3 has a backplate (back inner shell) 6 and a back support 7 arranged behind the former. The backplate 6 is split into a main member 11 and a top member 12. The top member 12 has an overhanging 13 projecting behind the back support 7. The hanger device 16 has a base bracket 54, a holder 55 and a hanger 56. The base bracket 54 is arranged superposedly on the back support 7 and is covered with the overhanging 13 of the backplate 6 from above. The base bracket 54 can be made more stable by providing a rod 57 and a slat 59. Those, however, are not exposed and consequently never damage the good appearance.

Description

  The present invention relates to a chair provided with a hanger device on a backrest.

  Attaching the hanger device to the chair back is widely practiced and various structures have been proposed or implemented. The mounting structure of the hanger device is inseparably integrated with the structure of the backrest. For example, Patent Documents 1 to 3 disclose that the hanger device is attached to the back of the back cover with a screw in the backrest having a shell-like back cover. Has been.

  Patent Document 4 discloses that a hanger device is fixed to a back column in a chair in which a backrest is attached to two left and right back columns. In Patent Document 3, a spring-type clip body that holds and holds a back column at the lower end of the hanger device is provided. Further, Patent Documents 4 to 7 disclose that a hanger receiving member is disposed inside the upper portion of the backrest, and that the hanger foot is inserted into the hanger receiving member from above.

JP 2003-334125 A JP 2005-245866 A JP 2004-174145 A Japanese Utility Model Publication No. 61-196655 JP 2008-029581 A Japanese Patent No. 3801769 JP 2006-087528 A

  The hanger device is an optional item, so the chair may be used without the hanger device attached. However, in the method of fixing the screw to the back of the back cover as in Patent Documents 1 to 3, there is a problem that the hanger device cannot be attached if the screw is lost, a problem that it takes time to rotate the screw at the time of attachment or removal, or When the hanger device is removed, there is a problem that the mounting hole of the screw is exposed and there is a risk of deteriorating the beauty. In addition, it may be difficult to ensure high mounting strength.

  On the other hand, since Patent Document 4 holds and holds the back strut with a spring-type clip body, the appearance is not deteriorated by exposing the screw hole, but it cannot be applied to a chair without a back strut. In addition, there is a problem that the clip body is exposed in a use state, so that there is a high possibility that the person will feel uncomfortable.

  On the other hand, in Patent Documents 5 to 7, since the hanger receiving member is hidden inside the backrest, it can be said that there is no problem of deterioration in aesthetics when the hanger device is not used. The present invention has been made in view of such a current situation, and intends to provide an unprecedented and novel hanger mounting structure.

  The invention of claim 1 is a chair in which a hanger device is attached to a backrest, wherein the hanger device comprises a base bracket having a portion built in an upper part of the backrest, and a hanger body exposed on the back side of the backrest. The base bracket has a hanger receiving portion protruding from a back portion of a backrest, and the hanger body is provided on the hanger receiving portion.

  According to a second aspect of the present invention, in the first aspect of the present invention, an overhang portion that protrudes rearward is provided at the upper portion of the backrest, and a downward projecting portion is provided at the rear end of the overhang portion, so that an upper portion of the backrest is provided. An upper space with a downward opening is provided, and the base bracket is exposed rearward from the upper space of the backrest. As a specific example of the invention of claim 2, in claim 3, the backrest includes a back plate having the overhang portion, and a shell-like back disposed behind a portion of the back plate below the overhang portion. And a part of the base bracket in the hanger device is interposed between the back support and the overhang part.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the base bracket is made of metal and is configured separately from the hanger body, and the hanger body is provided on a hanger receiving portion of the base bracket. The height is adjustable.

  In the invention of claim 1, since the base bracket is exposed behind the backrest, it can be applied to a backrest whose upper surface is covered with a skin material, for example. In addition, the portion of the base bracket that cannot be seen from the outside can be designed with the strength taken into account without considering the appearance, so the base bracket can be securely held inside the backrest, so the backrest It is also possible to increase the mounting strength as compared with the case where it is fixed to the back surface.

  According to the second aspect of the present invention, since the mounting portion of the base bracket is hidden by the overhang portion of the backrest, the mounting portion of the base bracket is not exposed after the hanger device is removed, and thus the hanger device is used. The appearance does not deteriorate due to not. In addition, since the base bracket has only the hanger receiving portion exposed when the hanger device is in use, there is also an advantage that the exposed portion can be reduced as much as possible.

  If comprised like Claim 3, the base bracket of a hanger apparatus can be hold | maintained so that it cannot detach | leave by pinching with the overhang part and back support of a backplate. For this reason, it can fix firmly, without using fasteners, such as a screw. Therefore, it is possible to prevent the problem of lost fasteners such as screws. Further, when a screw is not used, the trouble of rotating the screw can be reduced. According to the invention of claim 4, since the height of the hanger body can be adjusted, the flexibility is excellent.

BRIEF DESCRIPTION OF THE DRAWINGS It is an external view of a chair, (A) is a side view in the state which attached the hanger device, (B) is the perspective view seen from the back in the state which abbreviated the hanger device, (C) is in the state which attached the hanger device FIG. (A) is a partially omitted perspective view of the backrest, (B) is a partially omitted perspective view of the backrest as seen from behind, (C) is a partially omitted separated side view of the backrest, and (D) is a partially omitted rear view. It is. It is a separation perspective view of a backrest. (A) and (B) are separation perspective views of a backrest. It is the front view which turned the main member over and arranged with the back support. (A) is a separated perspective view of the main member and the back support, (B) is a partial perspective view of the lower part of the back support, and (C) is a partial perspective view of the lower part of the main member. It is a vertical side view of the upper part of a backrest. (A) is the isolation | separation perspective view of a backplate, (B) is the isolation | separation perspective view of a backplate in the state which displayed the back support. (A) is a separated rear view of the main part, (B) is a separated side view of the main part. (A) is a perspective view of the principal part, (B) is a separated perspective view of the principal part. It is the isolation | separation perspective view from the back of the principal part. (A) is a partially omitted perspective view from the rear with the hanger device attached, (B) is an exploded perspective view of the hanger device. (A) is a separated perspective view of a hanger apparatus, (B) (C) (D) is a perspective view of the structural member of a hanger apparatus. It is the same vertical side view as FIG. 7 in the state which attached the hanger apparatus.

  Next, an embodiment of the present invention will be described with reference to the drawings. This embodiment is applied to a rotary rocking chair that is frequently used for office work. In this application, the words “front and rear” and “left and right” are used to specify the direction, which is based on the direction of a person seated in a normal posture. The front view is in the direction facing the seated person.

(1). Outline of Chair First, an outline of a chair will be described mainly with reference to FIGS. As shown in FIG. 1, the chair includes a leg 1, a seat 2, and a backrest 3 as major elements. Although the leg 1 has branch legs extending in the radial direction, the illustration is omitted, and only the leg support 4 made of a gas cylinder is shown. A base 5 is fixed to the upper end of the leg column 4, and a seat 2 is disposed above the base 5.

  As shown in FIG. 2A, the backrest 3 includes a shell-like back plate (back inner shell) 6 to which the body pressure of the seated person is applied, and a shell-like back support (back outer shell) to which the back plate 76 is attached. ) 7, and a back cushion 8 is stretched on the front surface of the back plate 6. The back cushion 8 is covered with a skin material 9 made of woven fabric or knitted fabric from the front. A back stretch 10 made of cloth or the like is also stretched on the back of the back support 7.

  The back plate 6 is composed of two members (parts), which are a main member 11 disposed in front of the back support 7 and a top member 12 disposed on the main member 11. The top member 12 of both the members 11 and 12 has a number of recesses opened in the front and rear. The top member 12 has a number of recesses opened forward and a number of recesses opened rearward. The front surface of the main member 11 and the front surface of the top member 12 are smoothly continuous. Therefore, the seated person can be drowned without feeling uncomfortable.

  The upper end of the main member 10 and the upper end of the back support 7 on the back plate 6 are substantially the same height, and the top member 11 of the back plate 6 overlaps the upper surface of the back support 7. And the top member 11 which comprises the backplate 6 has the overhang part 13 which turned up back of the upper part of the back support 7, Therefore, the top member 11 is a side view form close | similar to a substantially downward opening U character. In addition, side recesses 14 are opened at the left and right ends.

  As clearly shown in FIG. 2, a pair of left and right arms 7 a extending forward are integrally formed at the lower end of the back support 7, and the left and right arms 7 a are connected to the base 5. A lower cover 15 is attached to the lower back surface of the back support 7. Although details are omitted, when the backrest 3 tilts backward, the seat 2 moves upward while moving upward. The backrest 3 is provided with a hanger device 16. The hanger device 16 is held by the back support 7 and the top member 12 so as not to be detached. Prior to the description of the hanger device 16, the structure of the backrest 3 will be described.

(2). Basic structure of the backrest As can be understood from FIG. 2, for example, the back support 11 and the back plate 6 are smaller in width at the lower end than at the upper end, and therefore both form an inverted trapezoidal shape in front view. ing. Further, the back plate 6 is curved in a forward concave shape in a plan view, and has a lumbar support portion in a forward convex shape in a side view.

  For example, as can be understood from FIG. 2, outwardly extending ridges 18 are formed on the left and right side edges and lower end of the main member 11 and the left and right side edges and rear end of the top member 12. A back cushion 8 is arranged in the broken part. Accordingly, the back cushion 8 and the skin material 9 extend to the lower back end of the overhang portion 13 in the top member 12. A tape-shaped edge member 19 (see FIG. 7) is fixed to the periphery of the skin material 9, and the edge member 19 is fitted to catch protrusions 20 provided on the backs of the main member 11 and the top member 12. . The edge member 19 can be fitted to and detached from the catch projection 20 against its elasticity, and therefore the skin material 9 can be easily replaced even by a user.

  As can be understood from FIG. 3, the portion of the back support 7 excluding the arm 7 a is substantially similar to the main member 11 of the back plate 6, as shown in FIGS. 4B, 5, and 6. In addition, a pair of left and right inner vertical ribs 21 and outer vertical ribs 22 that are continuous with the arm 7 a are projected forward on the front surface of the back support 7, and the inner vertical ribs 21 are continuous with left and right horizontally long lower ribs 23. ing. The upper ends of the left and right side vertical ribs 21, 22 are continuous with the upper horizontal rib 24. The inner and outer vertical ribs 21 and 22 have a reinforcing function and also a function of attaching the back plate 6 (this will be described later).

  The back plate 6 can be easily attached to and detached from the back support 7. This point will be described mainly with reference to FIGS. The main member 11 constituting the back plate 6 needs to be held by the back support 7 so that it cannot be displaced from side to side. Therefore, substantially square positioning projections 26 and 27 are provided to project rearward on both the left and right side portions and the lower portion of the main member 11, and the upper positioning projection 26 is interposed between the pair of left and right upper clamping bodies 28 provided on the back support 7. The lower positioning protrusion 27 is fitted between the inner and outer vertical ribs 21 and 22 in the back support 7.

  Further, as means for holding the main member 11 so as not to move forward, an upper engagement body 29 is provided on the outer side of the upper positioning projection 26 of the main member 11 so as to protrude rearward, and the top end of the upper engagement body 29 is viewed in plan view. An inclined upper engagement claw 29a is integrally provided, and an L-shaped upper engagement receiving portion 30 in a plan view on which the upper engagement claw 28 is hooked is formed on the front surface of the back support 7.

  The upper engaging claw 29a has a fin-like shape that is inclined in a plan view so as to be shifted to the left and right outwards toward the main member 11, and can be deformed by bending (can be deformed and constricted against elasticity). .) The upper engagement claw 29a can be engaged with the upper engagement body 30 by moving downward, or can be engaged with the upper engagement body 30 by being elastically deformed by pushing from the front.

  A lower engagement body 32 protrudes backward from a lower end portion of the rear surface of the main member 11 below the lower positioning projection 27, and a pair of left and right lower engagements inclined in a plan view is provided on the lower engagement body 32. The claw 32a is provided integrally. The left and right lower engaging claws 32a are in the form of fins (tongues), and both are inclined so that the distance between them increases toward the tip. That is, the lower engagement body 32 has an arrow shape. The lower engaging claw 32a can also be elastically deformed so as to rotate around its base.

  The lower engagement body 32 of the main member 11 enters a groove between the inner and outer longitudinal ribs 21 and 22 in the back support 7. A pair of left and right lower engagement receiving portions 33 with which the lower engagement claws 32a abut from the rear side are formed on the inner and outer vertical ribs 21 and 22 so as to face each other. The lower engagement claw 32a can also be engaged with the lower engagement receiving portion 33 by shifting from the upper side, and the lower engagement claw 32a can be engaged with the lower engagement portion by pushing in from the front as shown by an arrow A in FIG. It is also possible to engage with the receiving portion 33.

  The main member 11 of the back plate 6 is held at the upper end so as not to move left and right and to move downward with respect to the back support 7. That is, a rear-facing upper-end projection 34 and an upper frame portion 35 of an upper and lower opening continuous with the upper-end projection 34 are projected rearward from the upper end of the main member 11 toward the left and right ends. An upper end recessed portion 36 into which the upper end protrusion 34 is fitted and an inner frame portion 37 into which the upper frame portion 35 is fitted from above are formed. The upper frame portion 35 of the main member 11 has front and rear bars 35a and 35b, while the inner frame portion 37 of the back support 7 is provided with an upward projection 37a positioned between the front and rear bars 35a and 35b. .

  An upper engaging claw 38 for holding the top member 12 to the main member 11 so as not to be detached is provided in a portion of the main member 11 below the upper frame portion 35. The upper engaging claw 38 is bent and deformed so as to rotate back and forth around its lower end. Further, the upper engaging claw 38 abuts against the inner frame portion 37 of the back support 7 from below, so that the back plate 6 is held so as not to be able to be separated upward.

  A lower frame portion 40 having a front and rear opening in which a lever 39 (see FIG. 8) for operating the upper engaging claw 38 is disposed is provided in a portion of the back support 7 below the inner frame portion 37. The lower frame portion 40 has a support shaft 41 (see FIG. 6A) on which a lever 39 is rotatably mounted. Although detailed explanation is omitted, when the finger is inserted downward from the back side of the backrest 3 into the overhang portion 13 of the top member 12 and the fingertip is applied to the lower end of the lever 39 and pulled backward, the upper engaging claw 38 is The top member 12 moves forward and rotates so as to be detached from the inner frame portion 37, whereby the top member 12 can be removed from the main member 11.

  Further, when the top member 12 is placed over the main member 11, the upper engaging claw 38 is once bent and deformed against its elasticity so that its upper end moves forward, and then returned to its original posture and deformed. Then, the upper end of the upper engaging claw 38 is positioned below the inner frame portion 37 in the back support 7. As a result, the back plate 6 is held so that it cannot be detached upward.

(3) Connection Structure Next, the connection structure between the main member 11 and the top member 12 and the relationship between the top member 12 and the back support 7 will be described mainly with reference to FIGS. 7 and 8. As shown in FIG. 8B, the upper end of the main member 11 and the upper end of the back support 7 have rearward protruding portions 42 and 43 that overlap in the front-rear direction and have the same upper surface. A positioning hole 44 is opened up and down in the rearward projecting portion.

  On the other hand, the top member 12 has an intermediate step portion 45 that overlaps with the main member 11 and the rearward protruding portions 42 and 43 of the back support 7 in plan view, and the intermediate step portion 45 has a positioning hole 44 in the main member 11. A positioning projection 46 to be fitted is provided. The intermediate step portion 45 is also provided with a rib 47 that contacts the rearward projecting portions 42 and 43 from above. The overhang portion 13 of the top member 12 has a downward projecting portion 13 a that projects downward from the intermediate step portion 45. The downward projecting portion 13a extends over the entire length of the overhang portion 13, and an upper space that opens downward and laterally is open in front of the downward projecting portion 13a.

  As shown in FIGS. 8A and 4A, a guide rib 48 connected to the intermediate step portion 45 and the downward projecting portion 13a is provided inside the left and right positioning projections 46 of the top member 12. . The front surface of the guide rib 48 is inclined so as to be inclined forward with respect to the vertical line in a side view, and the guide rib 48 is located behind the inner frame portion 37 in the back support 7 in a state where the backrest 3 is assembled.

  When assembling the backrest 3, as shown in FIG. 2C and FIG. 3, the back plate 6 formed by attaching the top member 12 to the main member 11 is attached to the back support 7 while being stacked from above. However, when mounting, when the overhang portion 13 of the top member 12 is moved down so as to overlap the back support 7, the guide rib 48 hits the rear surface of the inner frame portion 37 of the back support 7, so that the back plate 6 is supported by the back support 6. When the back plate 6 is moved downward and completely moved downward, the positioning projection 46 is fitted into the positioning hole 44, and the upper and lower engagement bodies 29, 32 are moved to the engagement receiving portions 30, 32. Mating.

  When the upper and lower engagement bodies 29 and 32 are not fitted in the engagement receiving portions 30 and 32, when the main member 11 is pressed backward, the engagement claws 29a and 32a of the upper and lower engagement bodies 29 and 32 are elastically deformed. Is engaged with the engagement receiving portions 30 and 32. For example, as shown in FIG. 8 (A), the left and right side portions of the top member 12 are formed with downward protrusions 49 continuous with the protrusions 18, while the upper ends of the protrusions 18 in the main member 11 are open upward. The downward projection 49 is fitted to the cylindrical portion 50.

  For example, as clearly shown in FIG. 3, ear portions 51 that fit into the side recesses 14 of the top member 12 are provided at both left and right ends of the upper end portion of the back support 7. Two types of top member 12 are available, one with a high height, and when using the top member 12 with a high height, a plug 52 for blindfold is attached to the ear 51 as shown in the figure. is doing. In addition, the top member 12 has three or more types of heights, and can be arbitrarily selected and used.

(4) Hanger Device Next, the hanger device 16 will be described mainly with reference to the drawings in FIG. 9 and subsequent drawings (note that the back support 7 shown in FIG. 10 is the same as the back support 7 shown in FIGS. The top shape is slightly different, but they are essentially the same). For example, as shown in FIG. 9, the hanger device 16 has a base bracket 54 sandwiched and held between the back support 7 and the top member 12, a holder 55 attached to the base bracket 54, and a height adjustable to the holder 55. And a hanger body 56 attached thereto. Details will be described below.

  For example, as shown in FIG. 11, the base bracket 54 includes an upper plate 54 a that overlaps the rearward projecting portion 43 of the back support 7 from above, a vertical portion 54 b that is positioned behind the rearward projecting portion 43 of the back support 7, and a vertical portion. It has a lower plate 54c protruding backward from the lower end of 54b, and a hanger receiving portion 54d protruding upward from the rear end of the lower plate 54c. It has become.

  A left and right laterally long rod 57 is fixed to the upper plate 54a of the base bracket 54 by welding, and a pair of hooks 58 facing forward in a side view in which the rod 57 is fitted from the front are formed on the rearwardly protruding portion 43 of the back support 7. Projecting upwards one by one. In addition, a horizontally long vane plate 59 that is overlapped with the back surface of the rearward protruding portion 43 of the back support 7 is welded to the front surface of the vertical portion 54 b of the base bracket 54. The rod 57 is bent in a forward concave shape (or rearward convex shape) in a plan view, and thus has excellent stability. An upward lip is bent at the front end of the upper plate 54 a of the base bracket 54 in order to hold the rod 57 firmly.

  The rearwardly projecting portion 43 of the back support 7 is provided with a frame portion (recess) 60 in which the left and right end portions of the blade plate 59 are fitted so as not to move left and right and up and down. The base bracket 54, the rod 57, and the blade plate 59 can be collectively referred to as a base portion. The base bracket 54 is attached to the back support 7 with the back plate 6 removed. That is, the back support is carried out by a very simple procedure in which the hanger receiving portion 57d is tilted in a side view so that the hanger receiving portion 57d faces upward, and the rod 57 is first fitted into the collar piece 58 from the front and then returned to the predetermined posture. 7 is attached.

  The base bracket 54 is held so that it cannot be displaced in the front-rear direction, the left-right direction, and the up-down direction. A rib 61 that projects the upper plate 54a of the base bracket 54 so that it cannot be displaced left and right is projected upward from the rearward projecting portion 43 of the back support 7. Further, as shown in FIG. 14, a pair of left and right holding ribs 62 that are in contact with or in close contact with the vertical portion 54 b of the base bracket 54 are provided inside the top member 12 constituting the back plate 6 (see FIG. 14). 4 (A) and FIG. 8). For this reason, the hanger device 16 is held so as not to fall forward.

  If the left and right horizontally long rods 57 and the blades 59 are fixed to the base bracket 54 as in the present embodiment, there is an advantage that stability can be improved. Further, round holes 63a and 63b communicating with each other are provided in the left and right ends of the blade plate 59 and the frame portion 60 of the back support 7. When it is desired to obtain a higher fastening strength, it is possible to fasten with screws using the round holes 63a and 63b (the screws may be screwed into the blade plate 59 from the front, or the pocket in front of the frame portion 60). It may be screwed into the nut attached to the part from behind.)

  For example, as shown in FIG. 13, the holder 55 includes a holder main body 64 attached to the hanger receiving portion 54 d of the base bracket 54 and a stopper 65 attached to the holder main body 64 from the front. Both are resin molded products. As shown in FIGS. 13C and 14, the front portion of the holder main body 64 includes upper and lower front frame portions 66 that overlap the hanger receiving portion 54d of the base bracket 54, and a hanger receiving portion 54d of the base bracket 54. The holder main body 64 has a top plate 68 that comes into contact with the hanger receiving portion 54d of the base bracket 54 from above.

  Further, as shown in FIG. 14, an engagement hole 70 having a square front view is provided in the lower portion of the hanger receiving portion 54 d of the base bracket 54, while the holder body 64 is fitted into the engagement hole 70 by being stretched from below. An engaging claw 71 is provided to hold the holder 55 so that it cannot be removed upward. The engaging claw 71 is inclined so as to move forward as it goes upward. For this reason, when the holder main body 64 is fitted into the hanger receiving portion 54d from above, the engaging claw 71 is deformed so as to fall backward once. After that, it is deformed and fitted into the engagement hole 70.

  As can be understood from FIG. 14, the upper and lower front frame portions 66, the rear frame portion 67, and the engaging claws 71 of the holder main body 64 are displaced in the vertical direction and do not overlap when viewed from the front and rear direction. In other words, the space between the upper and lower front frame portions 66 and the lower portion of the lower front frame portion 66 are open. This is for facilitating the die-cutting in manufacturing the holder main body 64 using a mold that relatively moves in the left-right direction in the state of FIG.

  For example, as shown in FIG. 14, the rear surface portion of the holder main body 64 constituting the holder 55 is provided with a plurality of eaves portions 72 projecting left and right in plan view, while the hanger body 56 has a foot portion 56a. It is formed in a T shape when viewed from the front, and is provided with a dovetail groove 73 that fits into the heel portion 72 of the holder main body 64 in the foot portion 56a. For this reason, the hanger body 56 is attached to the holder 55 in a state in which it cannot move back and forth and only moves up and down. The left and right dovetails 73 are continuous. For this reason, a concave groove 74 having a forward opening is opened in the foot portion 56a.

  For example, as shown in FIGS. 13A and 13B, the engaging claws 75 projecting forward are provided on the left and right sides of the stopper 65, while the engaging claws 75 are fitted on the holder body 64. A mating engagement hole 76 is provided. Therefore, the stopper 65 can be attached to the holder body 64 simply by pressing. A rubber 77 is interposed between the holder main body 64 and the stopper 65 as an example of an elastic body. For this reason, the stopper 65 is urged rearward. Further, a flap 78 that fits into the dovetail 73 of the hanger body 56 is provided on the stopper 65 so as to protrude outward in the left-right direction.

  In the concave groove 74 of the foot portion 56a in the hanger body 56, a rising position restricting projection 79 for regulating the vertical height of the hanger body 56 and a retaining protrusion 80 for holding the hanger body 56 at the upper limit height position are vertically arranged. They are separated. On the other hand, the rear surface of the stopper 65 is provided with an upper protrusion 81 that can come into contact with the raised position restricting protrusion 79 from below and a lower protrusion 82 that can come into contact with the retaining protrusion 76 from below.

  The raised position restricting protrusion 79 of the stopper 65 and the upper protrusion 81 of the hanger body 56 have a mountain shape that is inclined on both the upper and lower surfaces in a side view. On the other hand, the retaining protrusion 80 is inclined at the lower surface but the upper surface is substantially horizontal, and the lower protrusion 82 of the stopper 65 is inclined at the upper surface but is substantially horizontal at the lower surface. Yes.

  FIG. 14 illustrates a state in which the hanger body 56 is lowered. In this state, the hanger body 56 is held so as not to be lowered by the state of the concave groove 74 hitting the upper end of the holder main body 54. On the other hand, when the hanger body 56 is pulled upward, the upper protrusion 81 of the hanger body 56 pushes the stopper 65 forward against the elasticity of the rubber 77, thereby preventing the retaining protrusion 76 of the stopper 65 and the raised position restricting protrusion. Overcoming 79. Then, when the upper protrusion 81 gets over the ascent position restricting protrusion 79, the lower protrusion 82 of the hanger body 56 comes into contact with the retaining protrusion 76 of the stopper 65 from below, so that the hanger body 56 cannot slide down in the ascending position. Retained.

  The hanger body 56 in the raised position can be lowered to the state shown in FIG. 14 by applying a certain amount of force and pushing it downward. The stopper 65 can be rotated forward by applying a fingertip or a flathead screwdriver to the lower end of the stopper 65. Thereby, the hanger body 56 can be removed. Further, the holder 55 can be detached from the base bracket 54 by tilting the engaging claw 71 backward with a thin object such as a flathead screwdriver and turning it.

(5) Summary / Others As described above, the hanger device 16 can be set on the back support 7 with the back plate 6 removed, and when the back plate 6 is attached to the back support 7. The hanger device 16 is held so as not to be detached. Therefore, the hanger device 16 can be firmly attached to the backrest 3 without using a screw (if the screw is used, it can be more firmly fixed). In addition, stability can be improved by the presence of the rod 57 and the blade plate 59 that are long in the left-right direction. Stability (mounting strength) can be ensured.

  In the present embodiment, the base bracket 54 is sandwiched between the back support 7 and the back plate 6, but the base bracket 54 can also be fixed inside the rearward projecting portion 43 of the back support 7 (ie, the base bracket). 54 is not necessarily sandwiched between the back plates 6).

  The present invention can be embodied in various ways other than the above embodiment. For example, the application target is not limited to a rotating chair, and can be applied to various chairs such as a fixed chair. Moreover, it cannot be overemphasized that it is applicable also to the chair whose backrest does not rock. The hanger device only needs to have a function of hanging something, and therefore, besides clothes, various items such as towels, shawls, mufflers, hats, umbrellas can be hung. When the height adjustment type is used, it is possible to adjust the height stepwise to three or more steps, or to adjust the height steplessly.

  Furthermore, the present invention can be applied to a backrest in which the back plate has an integral structure. It can also be applied to a backrest that does not have a back support. It is also possible to provide an overhang portion on the back support. Further, when the overhang portion is provided on the backrest, it is not always necessary to provide the downward projecting portion, and the base bracket of the hanger device may be exposed to the rear side from the lower surface of the overhang portion.

  The present invention is useful when applied to a chair. Therefore, it can be used industrially.

3 Backrest 6 Backboard 7 Back support 11 Main member constituting the backboard 12 Top member constituting the backboard 13 Overhang portion of the top member 16 Hanger device 43 Backward protruding portion of the back support 54 Base bracket 55 Holder 56 Hanger body 56a Foot 57 rod 58 buttock 59 back plate 64 holder body 65 stopper 72 buttock 73 dovetail

Claims (4)

A chair with a hanger mounted on the backrest,
The hanger device includes a base bracket having a portion built in an upper portion of the backrest, and a hanger body exposed on the back side of the backrest, and the base bracket protrudes on a back portion of the backrest. The hanger body is provided in the hanger receiving portion,
Chair. An overhang part protruding backward is provided at the upper part of the backrest, and an upper space of a downward opening is provided at the upper part of the backrest by providing a downward projecting part at the rear end of the overhang part, and The base bracket is exposed backward from the upper space of the backrest,
The chair according to claim 1. The backrest includes a back plate having the overhang portion, and a shell-like back support disposed behind a portion of the back plate below the overhang portion, and the base bracket of the hanger device A part is interposed between the back support and the overhang part,
The chair according to claim 2. The base bracket is made of metal and configured separately from the hanger body, and the hanger body is attached to the hanger receiving portion of the base bracket so that the height can be adjusted.
The chair as described in any one of Claims 1-3.

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