JP3108304U - The bottom of the chair seat - Google Patents

Abstract

The present invention provides an improved structure of a bottom plate of a chair seating part that allows the seating part of the chair to be moved up and down, moved back and forth, and to adjust the angle of the backrest part.
A bottom seat has one frame seat on one side, a movable plate on a rear side, a movable rod is pivotally installed on the frame seat, and one end of the movable rod is pneumatically expanded and contracted. Relative to the fitting cylinder 11 connected to the rod, the movable plate 15 can be fitted to each other with the fitting groove 241 provided on the rear side of the pedestal 2, and the pedestal 2 is parallel to the upper end surfaces at both ends. The sliding seat 25 is installed, the lower ends on both sides on the front side of the pedestal 2 are pivotally coupled to both side surfaces of the bottom seat 1 and the both sides of the rear side of the bottom seat 1 are pivotally coupled to the pivot holes 31 on the front ends of the two support rods 3; The lower ends of both sides on the rear side of the pedestal 2 and the pivot hole 32 in the front part of the support rod 3 are pivotally coupled, and the pedestal 2 and the front end of the bottom seat 1 are through-coupled by the elastic adjustment assembly 19, and the movable rod 13, the movable plate 15, and the sliding Each of the seats 25 is connected by each conducting wire.
[Selection] Figure 4

Description

  More specifically, the present invention relates to the structure of the bottom of the chair seat, and the bottom of the seat serving as a stool of the chair can be moved up and down by a pneumatic telescopic rod or back and forth by a sliding seat provided on the seat. The present invention relates to an improved structure of a bottom plate of a chair seating portion that can be moved, and that the backrest of the chair can be provided with an elastic adjustment function by an elastic adjustment assembly.

  Conventionally, in order to pursue the comfort of the chair, in addition to the multi-functional design, ergonomically necessary conditions, i.e., the seat (seat) is designed to match the curve of the human body, or the leg seat and seat The bottom plate of the seating part that connects the parts is added with a lifting function, a back and forth movement function, and an elastic adjustment function, which are very important in achieving its function with a pneumatic telescopic rod, sliding seat, elastic adjustment rod Is important to.

However, each part of each function is an independent design, and requires a certain size (area / volume), and the more functions, the larger the size of the base of the seating part, and the overall weight increases. There is a problem.
In addition, the control lever for controlling the various functions has a form protruding outward from the seating part, and troubles may occur during transportation, the overall appearance design may be affected, and the user may There is a problem that it is difficult to use in a seated state, and how to improve the above problem to develop a base plate of a chair seat with a structure is a development target in the related industry.

  The seat base can be moved up and down by a pneumatic telescopic rod, and the back of the chair can be moved back and forth by a sliding seat, and the backrest of the chair has an elastic adjustment function by an elastic adjustment assembly. An object of the present invention is to provide a bottom plate of a chair seating portion that can be used.

  The present invention relates to the structure of the bottom of the chair seat, which is a bottom of the chair seat composed of a base 1 and a base 2 connected to a backrest, and the base 1 is connected to a pneumatic telescopic rod on the bottom plate. A fitting cylinder 11 having pivot holes 101 and 102 on both sides of the bottom plate on the middle and rear sides, and a through hole 103 facing the elastic adjustment seat 191 on the upper surface on the front side. In addition, a frame seat 12 facing the fitting cylinder 11 is installed on one side surface of the both side surfaces, and a movable rod 13 is disposed on the frame seat 12, and the bottom plate rear side of the bottom seat 1 A base 14 is fixed to the base 14, and a frame 16 is fixed to the base 14 via a movable plate 15. A screw rod 17 having a spring 171 passing through the movable plate 15 has a pivot hole 151. Enables sliding in the front-rear direction In addition, the screw rod is fixed to the lead wire cover 18 connected to the lead wire 181 through the screw rod localization spring 172, and the base 2 is connected to the bottom seat 1 to provide a seating portion. One plate shape having a screw hole 21 opposite to the elastic adjustment seat 191 and the through hole 103 on the upper surface on the front side, and pivot holes on the lower ends of both side surfaces on the front side and the rear side, respectively. 22, a support portion having a long hole 23, a fitting seat 24 screwed to the rear side bottom surface, and a sliding seat 25 for installing a bottom seat parallel to the upper end surfaces of both side ends, respectively. The sliding seat 25 is fixed or movable by the stopper portion 532 of the stopper 53. With the above configuration, the plurality of fitting grooves 241 of the fitting seat 24 installed at the lower end on the rear side of the base 2 are provided. One of the The projecting portion of the movable plate 15 can be fitted, and the pivot hole 22 installed at the lower end of both side surfaces on the front side of the pedestal 2 and the pivot hole 101 installed on both side surfaces of the bottom seat 1. The shaft rod 4 is pivotally connected, and the screw hole 21 of the pedestal 2 and the through hole 103 of the bottom seat 1 are penetrated by one screw rod 41, and the threaded rod 41 and the elastic adjustment seat 191 penetrated. Are connected to each other to form an elastic adjustment assembly 19, and the two pivot rods 31 at the front end of the two support rods 3 forming the column of the backrest and the two pivot holes 102 of the bottom seat 1 are pivoted respectively. Further, the two pivot holes 32 at the rear end of the support rod 3 and the two long holes 23 of the pedestal 2 are pivotally connected to each other, and the bottom plate 10 connected to each lead wire is used for the chair. Seat to allow the lifting and moving back and forth, and is characterized in that to enable the angle adjustment of the backrest.

The present invention can achieve the following effects by the above structure.
(1) After the sliding seat 25 is directly installed in parallel with the upper end surfaces on both sides of the pedestal 2, the bottom seat is installed on the sliding seat 25, and the bottom seat is moved back and forth by the sliding seat 25. The center of gravity movement of the chair does not become unstable, and the outer shape of the bottom panel 10 does not increase.
(2) The aesthetic design of the appearance by connecting each of the movable rod 13, the movable plate 15, and the sliding seat 25 to the conductor of each adjuster and hiding the control lever below the pedestal 2. In addition, since the adjuster is installed in the most suitable place that is easy for the user to use and the control lever is operated by the connection design method using the conductive wire, the user bends his waist. It is possible to solve the drawback of having to operate.

  The features of the structure of the present invention and the effects thereof will be described in detail below with reference to embodiments, diagrams corresponding to the embodiments, and detailed descriptions.

The present invention relates to the structure of the base of the chair seat, and the base 10 of the seat is composed of a base 1 and a base 2.
The bottom seat 1 is provided with a fitting cylinder 11 connected to a pneumatic telescopic rod (not shown) substantially at the center of the bottom plate 1a, and has pivot holes 101 and 102 corresponding to both sides of the intermediate part and the rear part, respectively. A through hole 103 facing the elastic adjustment seat 191 is provided on the upper surface on the front side.

Also, a frame seat 12 is fixed to one side surface of the both side surfaces relative to the fitting cylinder 11, and a movable rod 13 is installed on the frame seat 12, and one end of the movable rod 13 is fitted to the fitting. It protrudes in the center part of the hole of the combined cylinder 11, and the other end is disposed in a state of protruding outward from the one side surface.
A base 14 and a frame 16 are disposed on the rear side of the bottom plate 1a, and a movable plate 15 is fixed between the base 14 and the frame 16 with screws.

The movable plate 15 is provided with a standing plate 15b standing from a bottom plate surface 15a. A pivot hole 151 penetrating in the front-rear direction is formed in the standing plate 15b, and a spring spring 171 is passed therethrough. The screw rod 17 is pivotally supported so as to be movable in the front-rear direction, and penetrates into a stereotaxic spring 172 disposed between the frame 16 covering the upper surface of the movable plate 15.
A cylindrical lead wire cover 18 connected to the lead wire 181 is screwed to a screw portion near the terminal end of the screw rod 17.

  As shown in FIG. 2, the conducting wire 181 passes through the wire hole 161 of the frame 16, is changed in direction by the conducting wheel 162, and then connected to a bidirectional reciprocating adjuster 54 (see FIGS. 6 and 7) described later. Be able to.

  The pedestal 2 is formed of a flat plate member that can be coupled to the upper surface of the bottom seat 1 and can provide a bottom plate serving as a seating portion, and the elastic adjustment seat 191 and the upper surface on the upper surface on the front side as shown in FIG. A screw hole 21 facing the through hole 103 is provided. Further, a support portion having a pivot hole 22 and a long hole 23 is provided on the lower surface of the front side and the rear side of both side surfaces bent upward, and a fitting seat that is screwed to the bottom surface on the rear side. 24 is provided.

  Further, sliding seats 25 are installed in parallel on the upper end surfaces of both side ends of the pedestal 2, respectively. The sliding seat 25 includes a raceway plate 251 and a lid 255 screwed to the upper surface. In addition, on both side ends of the pedestal 2, there are formed a long hole 26 that penetrates in the vertical direction and a plurality of ball receiving holes 253 that are formed close to the peripheral surface of the long hole 26, and this ball receiving hole 253. The ball 254 is disposed on the track plate 251 so that the lower surface of the track plate 251 is in contact therewith.

The track plate 251 has a projecting portion 251a on the lower surface, and a concave seat 252 is fitted to the projecting portion 251a from below, and the track plate 251 is movably installed on the elongated hole 26 so as to be covered. It is possible to move within the range of the long hole 26 together with 255.
In addition, a plurality of insertion grooves 256 are provided on both side surfaces of the lid 255, and stoppers 53 operated by a conducting wire 52 are detachably fitted in the insertion grooves 256.

Then, when the stopper 53 is inserted into the insertion groove 256, the movement of the sliding seat 25 is restricted, and conversely, when the stopper portion 532 of the stopper 53 is pulled by the conductive wire 52, it is detached from the insertion groove 256, The sliding seat 25 is structured to be movable.
A fitting seat 24 is fixed to the lower end surface on the rear side of the pedestal 2, and a fitting groove 241 for engaging the tip of the movable plate 15 is formed on the lower end surface of the fitting seat 24.
Further, on the plate surface of the pedestal 2, one conduit 28 is installed at a location facing one end of the movable rod 13.

  With the above structure, the protruding portion of the movable plate 15 is fitted into one of the fitting grooves 241 of the fitting seat 24 installed at the lower end on the rear side of the base 2. Further, the pivot hole 22 installed at the lower end of both front side surfaces of the pedestal 2 and the pivot hole 101 installed on both side surfaces of the bottom seat 1 are pivotally connected by one shaft rod 4. Further, the screw hole 21 of the pedestal 2 and the through hole 103 of the bottom seat 1 are penetrated by one screw rod 41, and the threaded rod 41 and the elastic adjustment seat 191 that are penetrated are connected and fixed, thereby adjusting the elasticity. The structure of the assembly 19 is formed.

Further, as shown in FIG. 4, a pivot shaft 31 at the front end of a pair of support rods 3 constituting a back column and two pivot shafts 102 of the bottom seat 1 are pivotally connected to each other. The hole 32 and the two long holes 23 of the base 2 are pivotally connected to each other.
In addition, the end of the movable rod 13 of the bottom seat 1 is connected to a conducting wire 51, and the conducting wire 51 is connected to one reciprocating adjuster 5 after passing through the conduit 28.
As shown in FIG. 6, the reciprocating adjuster 5 has a structure in which a leading end of a conducting wire 51 is connected to one rotating shaft 55 and the conducting wire 51 is wound around the outer periphery of the rotating shaft 55. By operating the lever, that is, by rotating the rotating shaft 55, the conducting wire 51 can be pulled or loosened.

Further, the conductive wire 181 connected to the movable plate 15 and the conductive wire 52 connected to the stopper 53 are connected by one bidirectional reciprocating adjuster 54. As shown in FIG. 7, the bidirectional reciprocating adjuster 54 can be provided with a stop function by a stopper contact surface 57 of the rotating shaft 55 and a limiting plate 56.
The reciprocating adjuster 5 and the bidirectional reciprocating adjuster 54 can be installed at desired positions.

  According to the configuration of the bottom plate 10 of the present invention, the movable rod 13 is fixed to the fitting cylinder 11 by being pulled by the conducting wire 51 of the reciprocating adjuster 5, that is, by moving a lever of the rotating shaft 55. The lifting and lowering of the pneumatic telescopic rod can be controlled. Further, the stopper portion 532 of the stopper 53 fitted in the fitting groove 256 of the sliding seat 25 on the pedestal 2 is pulled by the conducting wire 52 of the bidirectional reciprocating adjuster 54, that is, the bidirectional reciprocating adjuster. By moving the lever of the rotating shaft 55 of the 54, the stopper 2 can be moved back and forth by a structure in which the stopper 532 is detached from the fitting groove 256, and conversely, the rotation of the bidirectional reciprocating adjuster 54 is performed. When the lever of the shaft 55 is returned, the pulling force of the lead wire 52 is lost, and at the same time, the stopper portion 532 of the stopper 53 pulled by the lead wire 52 protrudes from the stopper 53 due to the repulsive force of the spring 531. The base 2 can be fixed by being inserted into the insertion groove 256.

  Further, when the user moves the lever of the rotary shaft 55 of the fixed reciprocating adjuster 54 to disengage the movable plate 15 from the fitting seat 24, the movable plate 15 is pulled by the conducting wire 181, The stereotaxic spring 172 is in a compressed state. The pedestal 2 is provided with a buffer function by the elastic adjustment assembly 19 with the shaft rod 4 of the bottom seat 1 as an axis.

Further, the angle of the support rod 3 relative to the pedestal 2 and the bottom seat 1 can be changed by the strength of the force applied to the backrest by the user, and the angle of the backrest can be adjusted as described above.
Furthermore, when the user loosens the bidirectional reciprocating adjuster 54, the repulsive force of the localization spring 172 can be recovered, and the movable plate 15 can be fitted into the fitting groove 241, and the backrest after the adjustment is performed. The purpose of the multi-function control can be achieved by fixing the angle.

  Further, each of the conducting wire 51, the conducting wire 52, and the conducting wire 181 can be connected to the reciprocating adjuster 5 or the bidirectional reciprocating adjuster 54. The reciprocating adjuster 54 can be placed on an appropriate position such as a stool (sitting part), and the aesthetic design of the appearance can be improved.

  Moreover, in order to beautify the external appearance of the bottom board 10, the cover 6 can also be installed as shown in FIG. In this embodiment, the cover 6 includes an upper cover 61 and a lower cover 62, and the upper cover 61 is installed so as to be positioned between the two sliding seats 25 installed at both ends of the pedestal 2. The pedestal 2 has one conduit hole 612 at a position corresponding to the conduit 28, and a conduit frame 613 for guiding the conducting wire 51 penetrating from the conduit 28 facing the conduit hole 612. .

The conduit hole 612 and the conduit rack 613 are for guiding the conducting wire 51, and when the conducting wire 51 is directly extended outwardly by a known method and does not need to penetrate the pedestal 2, The conduit hole 612 and the conduit rack 613 need not be installed.
Each of the upper cover 61 and the lower cover 62 has corresponding screw holes 611 and 621 so as to be fixed via the screw holes 27 on the base 2.
Further, the stopper 53 may be installed at a position opposite to the insertion groove 256 of the lower cover 62, and the stopper portion 532 of the stopper 53 is inserted into or removed from the insertion groove 256. The sliding seat 25 can be fixed or movable.

  Further, as shown in FIG. 9, the conductor cover 18 and the screw rod 17 each have a hole 182 and an insertion hole 173 corresponding to each other so as to overlap each other at a portion to be screw-coupled. It can be locked by the stop pin 7, or a method of providing a conductor insertion groove at the end of the screw rod 17 which is a known technique.

It is a disassembled perspective view of the bottom seat which shows 1st Example which concerns on the base of the chair seating part of this invention. It is action | operation explanatory drawing of the movable plate which shows 1st Example which concerns on the base of the chair seating part of this invention. It is a disassembled perspective view of the base which shows 1st Example which concerns on the base of the chair seating part of this invention. It is a disassembled perspective view of the base of the seating part which shows 1st Example which concerns on the base of the chair seating part of this invention. It is a perspective view which shows the combination state of the bottom board which shows 1st Example which concerns on the bottom board of the chair seating part of this invention. It is a disassembled perspective view of the reciprocating adjuster which shows 1st Example which concerns on the base of the chair seating part of this invention. It is a disassembled perspective view of the bidirectional | two-way reciprocating adjuster which shows 1st Example which concerns on the base of the chair seating part of this invention. It is a disassembled perspective view which shows the cover part of the bottom seat which shows 1st Example which concerns on the base of the chair seat part of this invention. It is explanatory drawing which shows the modification of the movable plate which concerns on the bottom board of the chair seating part of this invention.

Explanation of symbols

1 bottom seat 101 pivot hole 101 pivot hole 103 through hole 10 fitting cylinder 11 frame seat 12 movable rod 13 base seat 14 movable plate 151 pivot hole 16 frame 161 wire hole 162 guide wheel 17 screw rod 171 spring 172 stereotaxic spring 173 insertion hole 18 lead wire Cover 181 Conductor 182 Hole 19 Elastic adjustment assembly 191 Elastic adjustment seat 2 Base 21 Screw hole 22 Pivot hole 23 Long hole 24 Fitting seat 241 Fitting groove 25 Sliding seat 251 Track plate 252 Concave seat 253 Ball receiving hole 254 Ball 255 Lid 256 Insertion groove
26 long hole 27 screw hole 28 conduit 3 support rod 31 pivot hole 32 pivot hole 4 shaft rod 41 screw rod 5 reciprocating adjuster 51 conducting wire 52 conducting wire 53 stopper 531 spring 532 stopper portion 54 bidirectional reciprocating adjuster 55 rotating shaft 56 limiting plate 57 Stopper contact surface 6 Cover 61 Upper cover 611 Screw hole 612 Conduit hole 613 Conduit rack 62 Lower cover 621 Screw hole 7 Stop pin 10 Bottom plate

Claims (3)

A bottom plate of a chair seat composed of a base 1 and a base 2 connected to a backrest,
The bottom seat 1 includes a fitting cylinder 11 connected to a pneumatic telescopic rod on the bottom plate. The bottom seat 1 has pivot holes 101 and 102 on both side surfaces on the middle and rear sides of the bottom plate. A frame seat 12 that has a through-hole 103 that faces the elastic adjustment seat 191 and that faces the fitting cylinder 11 is provided on one side surface of the both side surfaces. Is placed,
A base 14 is fixed to the rear side of the bottom plate of the base 1, and a frame 16 is screwed to the base 14 via a movable plate 15, and a spring 171 is passed through the movable plate 15. The screw rod 17 is provided so as to be slidable in the front-rear direction through the pivot hole 151, and is screwed to the lead wire cover 18 connected to the lead wire 181 at the end through the screw rod localization spring 172.
The pedestal 2 has a single plate shape that can be combined with the bottom seat 1 to provide a seating portion, and has a screw hole 21 facing the elastic adjustment seat 191 and the through hole 103 on the upper surface on the front side. In addition, it has a support portion having a pivot hole 22 and a long hole 23 at the lower ends of both side surfaces on the front side and the rear side, and has a fitting seat 24 screwed to the bottom surface on the rear side. Sliding seats 25 for installing the bottom seat parallel to the upper end surface of the end are installed, and the sliding seat 25 is fixed or movable by the stopper portion 532 of the stopper 53,
With the above configuration, the projecting portion of the movable plate 15 can be fitted into one of the plurality of fitting grooves 241 of the fitting seat 24 installed at the lower end on the rear side of the pedestal 2. The pivot hole 22 installed at the lower end of both side surfaces on the part side and the pivot hole 101 installed on both side faces of the bottom seat 1 are pivotally connected by one shaft rod 4, and the screw hole of the base 2 is further connected. 21 and the through hole 103 of the bottom seat 1 are penetrated by one screw rod 41, and the threaded rod 41 and the elastic adjustment seat 191 that are penetrated are connected and fixed to constitute an elastic adjustment assembly 19;
Further, the pivot hole 31 at the front end of the two support rods 3 constituting the column of the backrest and the two pivot holes 102 of the bottom seat 1 are respectively pivotally connected,
Further, the two pivot holes 32 at the rear end of the support rod 3 and the two long holes 23 of the base 2 are pivotally connected respectively.
The bottom plate of the chair seat portion, wherein the seat portion of the chair can be moved up and down and moved back and forth and the angle of the backrest can be adjusted by the bottom plate 10 connected to each conductive wire. The bottom plate of the chair seat according to claim 1, wherein each adjustment can be performed by a structure in which each of the conductive wires is connected to an adjuster. The bottom plate of the chair seat according to claim 1, wherein a cover (6) is installed to beautify the appearance of the bottom plate (10).