JP2019180843A - Toilet seat lifting device - Google Patents

Abstract

To provide a toilet seat lifting device comprising a slider part to which a toilet seat is fixed, and two guide shafts for guiding vertically, the slider part, the toilet seat lifting device capable of being made into a compact in a cross direction which is orthogonal to a lateral direction where the two guide shafts are arranged, and a vertical direction.SOLUTION: A toilet seat lifting device comprises: a fixing part 9 fixed to a toilet bowl body; a slider part 10 which can be lifted up and down to the fixing part 9 and to which the toilet seat is fixed; two guide shafts 11 which are supported to the fixing part 9 and guide the slider part 10 in a vertical direction; and a holding mechanism 12 for maintaining a stop state of the slider part 10 which is stopped at a prescribed position in the vertical direction. If a direction orthogonal to a lateral direction where the two guide shafts 11 are arranged, and a vertical direction, is a cross direction, in the toilet seat lifting device, the guide shafts 11 and holding mechanism 12 are deviated in a lateral direction so that they do not overlap in the cross direction.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a toilet seat lifting and lowering device for lifting and lowering a toilet seat with respect to a toilet body of a western style toilet.

  Conventionally, a toilet seat lifting and lowering device for manually lifting and lowering a toilet seat with respect to a toilet body of a Western-style toilet is known (for example, see Patent Document 1). The toilet seat lifting device described in Patent Document 1 is a fixed plate fixed to the toilet body, two guide shafts fixed to the fixed plate, a slider moving up and down along the two guide shafts, and fixed to the slider. And a movable plate to which the toilet seat is fixed. The fixing plate includes a lower end portion that is fixed to the toilet body, and a back portion that rises upward from the rear end of the lower end portion. The two guide shafts are arranged in a state spaced from each other in the left-right direction. The slider includes two bearing portions through which the guide shaft is inserted, and a top plate portion that connects upper ends of the two bearing portions. The slider is disposed on the front side of the back surface portion of the fixed plate.

  In addition, the toilet seat lifting device described in Patent Document 1 includes a stopper for maintaining the stopped state of the slider stopped at a predetermined position in the vertical direction. The stopper includes an engaging member that is held by the slider so as to be movable in the front-rear direction, a spring that urges the engaging member toward the rear side, and a recess that is formed on the back surface of the fixed plate. It is composed of The engaging member and the spring are disposed in a square hole formed in the bearing portion of the slider, and are disposed between the guide shaft and the back surface portion of the fixed plate in the front-rear direction. In the toilet seat lifting device described in Patent Document 1, the rear end portion of the engaging member biased by the spring enters the concave portion of the back surface portion, so that the stopped state of the slider can be maintained.

JP 2007-268211 A

  In the toilet seat lifting device described in Patent Document 1, the engaging member and the spring for maintaining the stopped state of the slider stopped at a predetermined position in the up-down direction include the guide shaft and the back surface portion of the fixed plate in the front-rear direction. It is arranged between. Therefore, in this toilet seat lifting / lowering device, the toilet seat lifting / lowering device increases in size in the front-rear direction perpendicular to the left-right direction and the vertical direction, which are the directions in which the two guide shafts are arranged.

  Accordingly, an object of the present invention is to provide a toilet seat lifting / lowering device including a slider portion to which a toilet seat of a Western-style toilet is fixed and two guide shafts for guiding the slider portion in the vertical direction. An object of the present invention is to provide a toilet seat lifting / lowering device that can be reduced in size in the front-rear direction perpendicular to the left-right direction and the up-down direction.

  In order to solve the above-described problems, a toilet seat lifting apparatus of the present invention includes a fixing portion fixed to a toilet body of a western-style toilet, a slider portion to which the toilet seat of the western-style toilet is fixed and liftable with respect to the fixing portion, Two guide shafts that are supported by the fixed portion and guide the slider portion in the vertical direction; and a holding mechanism for maintaining the stopped state of the slider portion that is stopped at a predetermined position in the vertical direction. The axial direction of the shaft coincides with the vertical direction, and the two guide shafts are arranged in a predetermined direction perpendicular to the vertical direction, and the two guide shafts are arranged side by side. Is the left-right direction, and the direction perpendicular to the up-down direction and the left-right direction is the front-rear direction, the guide shaft and the holding mechanism are arranged in a state shifted from each other so as not to overlap in the front-rear direction. , 2 in the left-right direction Characterized in that it is arranged between the guide shaft.

  In the toilet seat lifting / lowering device of the present invention, the holding mechanism for maintaining the stopped state of the slider portion stopped at a predetermined position in the vertical direction and the guide shaft are shifted from each other in the left-right direction so as not to overlap in the front-rear direction Is arranged in. Therefore, in the present invention, the toilet seat in the front-rear direction is compared with the case where the holding mechanism and the guide shaft overlap in the front-rear direction orthogonal to the left-right direction, which is the direction in which the two guide shafts are aligned, and the up-down direction. The lifting device can be downsized.

  In the present invention, the holding mechanism is disposed between the two guide shafts in the left-right direction. Therefore, in the present invention, if the width in the left-right direction of the toilet seat lifting / lowering device is constant, for example, in comparison with the case where the holding mechanism is disposed outside the two guide shafts in the left-right direction, It becomes possible to widen the distance between the guide shafts. Therefore, it is possible to stabilize the ascending / descending state of the slider portion that is guided up and down by the guide shaft.

  In the present invention, for example, the slider portion includes a toilet seat fixing portion to which the toilet seat is fixed. The toilet seat fixing portion is disposed on one side in the front-rear direction with respect to the guide shaft, and the toilet seat is fixed to the guide shaft in the front-rear direction. If the side on which the part is arranged is the front side and the opposite side is the rear side, the fixed part rises upward from the lower end part supporting the lower end side of the guide shaft and the rear end side of the lower end part and is higher than the guide shaft. The holding mechanism is in contact with the front surface of the back surface portion to maintain the slider portion in a stopped state.

  In the present invention, for example, the holding mechanism includes an engaging member that is held by the slider portion so as to be movable in the front-rear direction, and a biasing member that biases the engaging member toward the rear side. The rear portion is formed with a recess that is recessed toward the rear side and into which the rear end portion of the engaging member enters. Moreover, in this invention, the 1st recessed part and the 2nd recessed part arrange | positioned above a 1st recessed part are formed in a back part as a recessed part, for example. In this case, it is possible to maintain the stopped state of the slider portion at two locations in the vertical direction.

  In this invention, it is preferable that a back part is formed in flat form, and the both right-and-left both-ends part of the back part is a bending part bent toward the front side. If comprised in this way, since the back part is formed in flat form, it will become possible to miniaturize a toilet seat raising / lowering apparatus in the front-back direction. Also, with this configuration, the left and right end portions of the back portion are bent portions, so even if the back portion is formed in a flat plate shape, the strength of the back portion is secured and the back portion is deformed. It becomes possible to suppress. Therefore, even if a load that deforms the back surface portion acts on the toilet seat lifting device, the back surface portion is suppressed from being deformed, and the rear end portion of the engaging member that has entered the recess portion when the slider portion stops is released from the recess portion. Can be suppressed. As a result, even if a load that deforms the back surface portion acts on the toilet seat lifting / lowering device, it is possible to suppress a decrease in the maintenance function of the slider portion in the stopped state.

  In the present invention, the toilet seat lifting / lowering device includes, for example, a damper mechanism for reducing the lifting / lowering speed of the slider portion, and a second biasing member that biases the slider portion upward with respect to the fixed portion. In this case, the damper mechanism is, for example, a pneumatic damper having a cylinder and a piston disposed on the inner peripheral side of the cylinder. In this case, for example, the second urging member is a compression coil spring, and is arranged coaxially with the piston and the cylinder.

  In the present invention, the toilet seat lifting / lowering device preferably includes a plurality of damper mechanisms arranged so as to be adjacent to each other in the left-right direction. In other words, the toilet seat lifting device preferably includes a plurality of pneumatic dampers arranged so as to be adjacent in the left-right direction. With this configuration, as compared with the case where the toilet seat lifting / lowering device includes only one pneumatic damper, the cushioning function for relaxing the lifting / lowering speed of the slider portion is ensured, and the cylinder of each pneumatic damper is secured. The outer diameter can be reduced. Moreover, when comprised in this way, since the pneumatic damper provided with the cylinder which can make an outer diameter small is arrange | positioned so that it may adjoin in the left-right direction, one pneumatic damper which the outer diameter of a cylinder becomes large Compared with the case where the toilet seat lifting / lowering device is provided, the toilet seat lifting / lowering device can be downsized in the front-rear direction.

  As described above, in the present invention, two guide shafts are arranged side by side in a toilet seat lifting apparatus including a slider portion to which a toilet seat of a Western-style toilet is fixed and two guide shafts for guiding the slider portion in the vertical direction. The toilet seat lifting / lowering device can be reduced in size in the front-rear direction perpendicular to the left-right direction and the up-down direction, which are the direction in which it is located.

It is a perspective view of the toilet seat raising / lowering apparatus concerning embodiment of this invention. It is a perspective view of the western style toilet unit in which the toilet seat raising / lowering apparatus shown in FIG. 1 is used. It is a disassembled perspective view of the toilet seat raising / lowering apparatus shown in FIG. FIG. 2 is a partial cross-sectional view of the toilet seat lifting apparatus shown in FIG. It is a perspective view which shows the slider main body shown in FIG. 3 from another direction. FIG. 4 is a plan view of a part of the slider body shown in FIG. 3. It is sectional drawing for demonstrating the structure of the EE cross section of FIG. It is a perspective view which shows the state which removed the fixing plate from the toilet seat raising / lowering apparatus shown in FIG. 1 from another direction. It is sectional drawing for demonstrating the structure of the FF cross section of FIG. It is a cross-sectional perspective view of the spring holding member shown in FIG. It is a perspective view of the lid member shown in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Overall configuration of toilet seat lifting device)
FIG. 1 is a perspective view of a toilet seat lifting / lowering apparatus 1 according to an embodiment of the present invention. FIG. 2 is a perspective view of a Western-style toilet unit 5 in which the toilet seat lifting apparatus 1 shown in FIG. 1 is used. FIG. 3 is an exploded perspective view of the toilet seat lifting apparatus 1 shown in FIG.

  The toilet seat lifting / lowering device 1 according to the present embodiment is a device for manually lifting and lowering the toilet seat 4 with respect to the toilet body 3 of the western toilet 2 when cleaning the western toilet 2 and the like, as shown in FIG. Used in unit 5. The western toilet 2 includes a toilet lid 6 in addition to the toilet body 3 and the toilet seat 4. The toilet seat lifting / lowering device 1 lifts and lowers the toilet lid 6 together with the toilet seat 4. The western toilet 2 may not include the toilet lid 6.

  The toilet seat lifting / lowering device 1 includes a fixed portion 9 fixed to the toilet body 3, a slider portion 10 to which the toilet seat 4 is fixed and can be moved up and down with respect to the fixed portion 9, and a plurality of slider portions 10 that are guided in the vertical direction. And a guide shaft 11. Further, the toilet seat lifting / lowering device 1 includes a holding mechanism 12 for maintaining the stopped state of the slider unit 10 stopped at a predetermined position in the vertical direction, and a damper mechanism 13 (for relaxing the lifting / lowering speed of the slider unit 10). And a compression coil spring 14 as a second urging member for urging the slider portion 10 upward with respect to the fixed portion 9. The toilet seat lifting / lowering apparatus 1 according to the present embodiment includes two guide shafts 11, two holding mechanisms 12, two damper mechanisms 13, and two compression coil springs 14.

  The axial direction of the guide shaft 11 coincides with the vertical direction. In addition, the two guide shafts 11 are arranged in a state where they are spaced from each other in a predetermined direction orthogonal to the vertical direction. In the following description, the X direction in FIG. 1 or the like in which the two guide shafts 11 are arranged is “left and right direction”, and the Y direction in FIG. " Further, the Y1 direction side in FIG. 1 or the like which is one side in the front-rear direction is referred to as the “front” side, and the Y2 direction side in FIG. A rear end portion of the toilet seat 4 is attached to the slider portion 10, and the toilet seat lifting / lowering device 1 is disposed behind the toilet seat 4.

(Configuration of fixed part)
The fixing portion 9 includes a fixing plate 17 fixed to the toilet body 3, a retaining plate 18 fixed to the upper end side of the fixing plate 17, and a spring holding member 19 that holds the lower portions of the two compression coil springs 14. And. The fixed plate 17 is formed by bending a metal flat plate into a predetermined shape. The fixed plate 17 includes a flat plate-like lower end portion 17a that forms the lower end surface of the fixed portion 9, and a back surface portion 17b that rises upward from the rear end of the lower end portion 17a. The lower end portion 17a is fixed to the toilet body 3 so that the thickness direction of the lower end portion 17a and the vertical direction coincide with each other.

  The back surface portion 17b is formed in a flat plate shape. The left and right end portions of the back surface portion 17b are bent portions 17c that are bent toward the front side. The back surface portion 17b is arranged so that the thickness direction of the portion of the back surface portion 17b excluding the bent portion 17c matches the front-rear direction. The bent portion 17c is arranged so that the thickness direction of the bent portion 17c and the left-right direction coincide. The bent portion 17c is formed in substantially the entire area of the back surface portion 17b excluding a part on the upper end side of the back surface portion 17b in the vertical direction.

  Concave portions 17 d and 17 e into which a rear end portion of an engaging member 30 described later constituting the holding mechanism 12 enters are formed in the back surface portion 17 b. Specifically, two concave portions 17d and two concave portions 17e are formed on the back surface portion 17b. The recesses 17d and 17e are recessed toward the rear side. The two concave portions 17d are formed at substantially the center position of the back surface portion 17b in the vertical direction. The two concave portions 17d are arranged at the same position in the vertical direction, and are arranged in a state of being spaced apart in the horizontal direction.

  The two concave portions 17e are formed on the upper end side of the back surface portion 17b. The two concave portions 17e are arranged at the same position in the vertical direction, and are arranged in a state of being spaced apart in the horizontal direction. Further, the concave portion 17e disposed on the right side is disposed at the same position as the concave portion 17d disposed on the right side in the left-right direction, and the concave portion 17e disposed on the left side is formed with the concave portion 17d disposed on the left side in the left-right direction. Arranged at the same position. The concave portion 17d in this embodiment is a first concave portion, and the concave portion 17e is a second concave portion that is disposed above the concave portion 17d that is the first concave portion.

  The retaining plate 18 is formed by bending a metal flat plate into a predetermined shape. The retaining plate 18 includes an upper end portion 18a that forms the upper end surface of the fixing portion 9, and a fixed portion 18b that bends downward from the rear end of the upper end portion 18a. The upper end portion 18a is arranged so that the thickness direction of the upper end portion 18a matches the vertical direction, and the fixed portion 18b is arranged so that the thickness direction of the fixed portion 18b matches the front-rear direction. Yes. The fixed portion 18b is fixed to the upper end portion of the back surface portion 17b by a screw 20.

  The lower end side of the guide shaft 11 is supported by the lower end portion 17 a of the fixed plate 17, and the upper end side of the guide shaft 11 is supported by the upper end portion 18 a of the retaining plate 18. That is, the guide shaft 11 is supported by the fixed portion 9. The retaining plate 18 has a function of preventing the slider portion 10 from being pulled upward from the guide shaft 11. Further, the guide shaft 11 is disposed in front of the back surface portion 17b. That is, the back surface portion 17 b is disposed on the rear side of the guide shaft 11.

  The spring holding member 19 is made of resin. The spring holding member 19 is fixed to the upper surface of the lower end portion 17a by a screw 21. A specific configuration of the spring holding member 19 will be described later.

(Configuration of slider part)
4 is a partial cross-sectional view of the toilet seat lifting apparatus 1 shown in FIG. FIG. 5 is a perspective view showing the slider body 23 shown in FIG. 3 from another direction. 6 is a plan view of a part of the slider body 23 shown in FIG. FIG. 7 is a cross-sectional view for explaining the configuration of the EE cross section of FIG.

  The slider portion 10 includes a slider main body 23 made of resin and a metal reinforcing member 24 for reinforcing the resin slider main body 23. The slider portion 10 of this embodiment includes two reinforcing members 24. The reinforcing member 24 is an L-shaped metal plate composed of a flat plate portion 24a and a flat plate portion 24b that is bent at a right angle from an end surface of the flat plate portion 24a.

  The slider main body 23 includes a toilet seat fixing portion 23a to which the toilet seat 4 is fixed, and a main body portion 23c having a bearing portion 23b through which the guide shaft 11 is inserted. The toilet seat fixing portion 23a is formed in a rectangular flat plate shape, and is disposed so that the thickness direction of the toilet seat fixing portion 23a coincides with the vertical direction. That is, the toilet seat fixing part 23a is formed in a flat plate shape orthogonal to the vertical direction. The main body portion 23c rises upward from the rear end of the toilet seat fixing portion 23a.

  The toilet seat fixing portion 23 a is disposed on the front side of the guide shaft 11. That is, the front side (Y1 direction side) is the side on which the toilet seat fixing portion 23a is disposed with respect to the guide shaft 11 in the front-rear direction. Two recesses 23d in which the flat plate portion 24a of the reinforcing member 24 is disposed are formed on the lower surface of the toilet seat fixing portion 23a. The recess 23d is formed so as to be recessed upward from the lower surface of the toilet seat fixing portion 23a. The recess 23d is formed in a predetermined range from the rear end of the toilet seat fixing portion 23a toward the front side. Each of the two concave portions 23d is formed on each of the left and right ends of the toilet seat fixing portion 23a. A protrusion 23e for positioning the reinforcing member 24 is formed in the recess 23d. The protrusion 23e is formed in a cylindrical shape that protrudes downward from the bottom surface of the recess 23d that is recessed upward.

  Further, the toilet seat fixing portion 23a is formed with a through hole 23f in which a part of the screw 25 for fixing the flat plate portion 24a of the reinforcing member 24 is arranged. The through hole 23f penetrates from the upper surface of the toilet seat fixing portion 23a to the bottom surface of the recess 23d. Further, the through holes 23f are formed at four places. Of the four through holes 23f, two through holes 23f are formed on the right end side of the toilet seat fixing portion 23a, and the remaining two through holes 23f are formed on the left end side of the toilet seat fixing portion 23a. . The two through holes 23f disposed on both the left and right ends are formed with a space in the front-rear direction. The head of the screw 25 and a part of the shaft portion are disposed in the through hole 23f.

  The two bearing portions 23b constitute left and right end portions of the main body portion 23c. The upper end portion 23g constituting the upper end surface of the main body portion 23c connects the upper end portions of the two bearing portions 23b. The upper end 23g is formed in a rectangular parallelepiped block shape. The rear surface of the upper end portion 23g is disposed behind the rear surface of the lower portion of the main body portion 23c, and the thickness of the upper end portion 23g in the front-rear direction is the upper end of the main body portion 23c. It is thicker than the thickness in the front-rear direction of the portion below the portion 23g.

  A plurality of reinforcing ribs 23h for reinforcing a connecting portion between the toilet seat fixing portion 23a and the main body portion 23c are formed on the front surface of the main body portion 23c. The reinforcing ribs 23h are formed in a substantially triangular flat plate shape having the thickness direction in the left-right direction. The rear surface of the reinforcing rib 23h is connected to the front surface of the main body portion 23c, and the lower end surface of the reinforcing rib 23h is connected to the upper surface of the toilet seat fixing portion 23a. Two concave portions 23j in which the holding mechanism 12 is disposed are formed on the rear surface of the upper end portion 23g. The concave portion 23j is formed in a square hole shape that is recessed from the rear surface of the upper end portion 23g toward the front side.

  The two recesses 23j are arranged in a state spaced from each other in the left-right direction. Moreover, the two recessed parts 23j are arrange | positioned between the two bearing parts 23b in the left-right direction. Specifically, the concave portion 23j disposed on the right side is disposed adjacent to the left side of the bearing portion 23b disposed on the right side, and the concave portion 23j disposed on the left side is adjacent to the right side of the bearing portion 23b disposed on the left side. Has been placed. Formed in the recess 23j is a columnar projection 23k that protrudes rearward from the bottom surface of the recess 23j that is recessed toward the front side.

  A contact surface 23n with which the flat plate portion 24b of the reinforcing member 24 contacts is formed on the front surface of the main body portion 23c. The contact surface 23n is a plane orthogonal to the front-rear direction. Further, the contact surface 23n is formed at two locations on both the left and right ends of the main body portion 23c. Specifically, the contact surface 23n disposed on the right side is disposed adjacent to the left side of the bearing portion 23b disposed on the right side, and the contact surface 23n disposed on the left side is the right side of the bearing portion 23b disposed on the left side. It is arranged adjacent to. A rectangular opening 23p that penetrates the main body 23c in the front-rear direction is formed below the contact surface 23n. That is, the opening part 23p which penetrates the main-body part 23c is formed in two places of the right-and-left both ends side of the main-body part 23c.

  A through hole 23q in which a part of a screw 26 for fixing the flat plate portion 24b of the reinforcing member 24 is disposed is formed in a portion of the main body portion 23c where the contact surface 23n is formed. The through hole 23q is formed below the upper end 23g. The through hole 23q penetrates the main body portion 23c in the front-rear direction. Moreover, the through holes 23q are formed at four places. Of the four through holes 23q, two through holes 23q are formed on the right end side of the main body portion 23c, and the remaining two through holes 23q are formed on the left end side of the main body portion 23c. The two through holes 23q disposed on both the left and right ends are formed in a state of being spaced apart in the vertical direction. A part of the shaft portion of the screw 26 is disposed in the through hole 23q.

  A plurality of substantially triangular reinforcing ribs 23r for reinforcing the portion of the main body portion 23c where the through holes 23q are formed are formed on the rear surface of the main portion 23c where the contact surface 23n is formed. . The reinforcing rib 23r is formed below the upper end 23g. Further, the reinforcing rib 23r is formed at a position avoiding the through hole 23q. The reinforcing rib 23r is formed in a substantially triangular flat plate shape with the vertical direction as the thickness direction. The front surface of the reinforcing rib 23r is connected to the rear surface of the main body portion 23c. The right end surface of the reinforcing rib 23r arranged on the right side is connected to the bearing portion 23b arranged on the right side, and the left end surface of the reinforcing rib 23r arranged on the left side is connected to the bearing portion 23b arranged on the left side.

  In this embodiment, a cylinder 23s constituting a part of the damper mechanism 13 is formed integrally with the main body 23c. The cylinder 23s is formed in two places. As shown in FIG. 7 and the like, the cylinder 23s includes a recessed portion 23t that is recessed upward from the lower surface of the upper end portion 23g on the rear surface side of the main body portion 23c, and a lower surface of the upper end portion 23g that is below the recessed portion 23t. It is comprised from the cylindrical part 23u of the extended cylindrical shape. The recess 23t is formed in a round hole shape, and the center of the recess 23t coincides with the axis of the cylindrical portion 23u. The inner diameter of the recess 23t is equal to the inner diameter of the cylindrical portion 23u. The two recesses 23t are formed between the two recesses 23j in the left-right direction. That is, the cylinder 23s is disposed between the two recesses 23j in the left-right direction.

  A circular recess 23v that is recessed downward from the upper end surface of the upper end 23g is formed on the upper end surface of the upper end 23g. The recess 23v is formed at the center position of the two recesses 23t in the left-right direction. The recess 23v is recessed to a position where the two recesses 23t and the recess 23v are connected, and two vent holes 23w connected to the inside of the cylinder 23s are formed on the bottom surface side of the recess 23v.

  As described above, the reinforcing member 24 is an L-shaped metal plate including the flat plate portion 24a and the flat plate portion 24b. A screw hole 24c into which the screw portion of the screw 25 is screwed is formed in the flat plate portion 24a. The screw holes 24c are formed in two places. The screw hole 24c penetrates the flat plate portion 24a. Further, a positioning hole 24d into which the protrusion 23e is inserted is formed in the flat plate portion 24a. The positioning hole 24d passes through the flat plate portion 24a. The positioning hole 24d is formed between the two screw holes 24c. A screw hole 24e into which the screw portion of the screw 26 is screwed is formed in the flat plate portion 24b. The screw holes 24e are formed in two places. The screw hole 24e passes through the flat plate portion 24b.

  The reinforcing member 24 is fixed to the slider body 23 with the upper surface of the flat plate portion 24a contacting the bottom surface of the recess 23d and the rear surface of the flat plate portion 24b contacting the contact surface 23n. That is, in the reinforcing member 24 fixed to the slider main body 23, the flat plate portion 24a is in contact with the lower surface of the toilet seat fixing portion 23a, and the flat plate portion 24b is in contact with the front surface of the main body portion 23c. A part of the reinforcing member 24 is disposed in the opening 23p and closes the opening 23p. The lower surface of the flat plate portion 24a is disposed on the same plane as the lower surface of the toilet seat fixing portion 23a.

  The reinforcing member 24 of this embodiment reinforces the connecting portion between the toilet seat fixing portion 23a and the main body portion 23c. In this embodiment, the reinforcing member 24 is positioned in the vertical direction by the bottom surface of the recess 23d, and the reinforcing member 24 is positioned in the front-rear and left-right directions by the protrusions 23e and the positioning holes 24d. In this embodiment, the concave portion 23d and the protrusion 23e constitute a positioning portion 27 for positioning the reinforcing member 24 (see FIG. 4).

  The head portion of the screw 25 is disposed above the shaft portion of the screw 25, and the screw portion of the screw 25 that has passed through the through hole 23f is screwed into the screw hole 24c. That is, the screw 25 is attached from the upper surface side of the toilet seat fixing portion 23a. Moreover, the toilet seat fixing | fixed part 23a is pinched | interposed between the head part of the screw 25, and the flat plate part 24a. The head of the screw 26 is disposed on the rear side of the shaft portion of the screw 26, and the screw portion of the screw 26 that has passed through the through hole 23q to the front side is screwed into the screw hole 24e. That is, the screw 26 is attached from the rear surface side of the main body portion 23c. Further, the main body portion 23c is sandwiched between the head portion of the screw 26 and the flat plate portion 24b.

(Configuration of holding mechanism)
FIG. 8 is a perspective view showing the state in which the fixing plate 17 is removed from the toilet seat lifting apparatus 1 shown in FIG. 1 from another direction. FIG. 9 is a cross-sectional view for explaining the configuration of the FF cross section of FIG. 4.

  The holding mechanism 12 includes an engaging member 30 held by the slider body 23 so as to be movable in the front-rear direction, and a compression coil spring 31 as an urging member that urges the engaging member 30 toward the rear side. And. The holding mechanism 12 is disposed in the recess 23j. On the inner peripheral side of the compression coil spring 31, a protrusion 23k is inserted. The engaging member 30 is formed in a substantially rectangular tube shape with a bottom having an open front end, and a compression coil spring 31 is disposed on the inner peripheral side of the engaging member 30. On the rear end surface of the engaging member 30, a protruding portion 30a that protrudes toward the rear side is formed.

  The holding mechanism 12 maintains the stopped state of the slider portion 10 by contacting the front surface of the back surface portion 17b at the position where the concave portions 17d and 17e are formed. Specifically, at the position where the recesses 17d and 17e are formed, the rear end surface of the engagement member 30 contacts the front surface of the back surface portion 17b, and the protrusion 30a enters the recesses 17d and 17e, thereby holding The mechanism 12 maintains the stopped state of the slider portion 10 at two positions, that is, a position where the concave portion 17d is formed and a position where the concave portion 17e is formed.

  As described above, since the two concave portions 23j are disposed between the two bearing portions 23b in the left-right direction, the two holding mechanisms 12 are disposed between the two guide shafts 11 in the left-right direction. Has been placed. That is, in this embodiment, the guide shaft 11 and the holding mechanism 12 are arranged in a state of being shifted from each other in the left-right direction so as not to overlap in the front-rear direction.

(Damper mechanism configuration)
FIG. 10 is a cross-sectional perspective view of the spring holding member 19 shown in FIG. FIG. 11 is a perspective view of the lid member 38 shown in FIG.

  The damper mechanism 13 is a pneumatic damper having the above-described cylinder 23s formed integrally with the main body portion 23c of the slider main body 23, and a piston 34 disposed on the inner peripheral side of the cylinder 23s. The two damper mechanisms 13 are arranged so as to be adjacent in the left-right direction. The upper end portion 34a of the piston 34 is formed in a truncated cone shape whose outer diameter decreases toward the upper side. An annular O-ring arrangement groove 34b to which the O-ring 35 is attached is formed below the upper end 34a (see FIG. 7). The O-ring 35 is in contact with the inner peripheral surface of the cylinder 23s with a predetermined contact pressure.

  The lower side of the O-ring arrangement groove 34b is an annular flange 34c. A portion of the piston 34 below the flange portion 34c is a piston main body portion 34d having a cross-shaped cross section. The shape of the cross section of the piston main body 34d (the shape of the cross section perpendicular to the vertical direction) is a cross shape. A screw 36 for restricting the movement range of the piston 34 in the vertical direction is fixed to the lower end of the piston main body 34d (that is, the lower end of the piston 34). The upper end side of the piston 34 is disposed on the inner peripheral side of the cylinder 23 s, and the lower end side of the piston 34 is disposed on the inner peripheral side of the spring holding member 19.

  The spring holding member 19 includes two cylindrical portions 19a formed so as to be connected in the left-right direction. The rear end portion of the cylindrical portion 19a is cut away to prevent interference with the back surface portion 17b, and an opening 19b is formed on the rear end side of the cylindrical portion 19a. An inner cylindrical portion 19c formed in a cylindrical shape is formed on the inner peripheral side of the lower end side portion of the cylindrical portion 19a. A lower end portion of the piston main body portion 34d is disposed on the inner peripheral side of the inner cylindrical portion 19c. At the upper end of the inner cylindrical portion 19c, a restricting portion 19d for restricting the upward movement range of the piston 34 is formed. The upward movement of the piston 34 is restricted by the head of the screw 36 coming into contact with the lower surface of the restricting portion 19d. Further, the downward movement of the piston 34 is restricted by the head portion of the screw 36 coming into contact with the upper surface of the lower end portion 17a.

  In this embodiment, when the slider portion 10 is raised from the state in which the protruding portion 30a is fitted in the concave portion 17d, the inner peripheral surface of the cylinder 23s and the O are not changed until the head portion of the screw 36 contacts the lower surface of the restricting portion 19d. When the piston 34 rises together with the slider portion 10 due to the frictional force with the ring 35 and the head of the screw 36 comes into contact with the lower surface of the restricting portion 19d, the piston 34 stops, and then the buffering force by the damper mechanism 13 is reached. Acts on the slider portion 10. Further, when the slider portion 10 is lowered from the state in which the protruding portion 30a is fitted in the recess portion 17e, the inner peripheral surface of the cylinder 23s and the O-ring 35 are maintained until the head portion of the screw 36 contacts the upper surface of the lower end portion 17a. When the piston 34 moves down together with the slider portion 10 and the head of the screw 36 comes into contact with the upper surface of the lower end portion 17a, the piston 34 stops. Acts on part 10.

  The regulating portion 19d is formed with a cross-shaped through hole 19e penetrating in the vertical direction (see FIG. 10). The piston body 34d of the piston 34 is inserted through the through hole 19e. In this embodiment, the rotation of the piston 34 whose vertical direction is the axial direction of the rotation is prevented by the cross-shaped through hole 19e and the cross-shaped piston main body portion 34d inserted through the through hole 19e. .

  The compression coil spring 14 is an assist spring for enabling the toilet seat 4 to be easily lifted. A cylindrical portion 23 u is inserted on the inner peripheral side of the upper portion of the compression coil spring 14. The lower portion of the compression coil spring 14 is disposed on the inner peripheral side of the cylindrical portion 19a, and the inner cylindrical portion 19c is inserted on the inner peripheral side of the lower end portion of the compression coil spring 14. The compression coil spring 14 is disposed coaxially with the cylinder 23 s and the piston 34. A contact surface with which the lower end of the compression coil spring 14 contacts is formed between the lower end of the cylindrical portion 19a and the lower end of the inner cylindrical portion 19c.

  As described above, the circular concave portion 23v is formed on the upper end surface of the upper end portion 23g of the slider main body 23, and two vent holes 23w connected to the inside of the cylinder 23s are formed on the bottom surface side of the concave portion 23v. Is formed. A lid member 38 for closing the recess 23v is attached to the recess 23v. The lid member 38 is made of resin. The lid member 38 is formed in a bottomed cylindrical shape. The lid member 38 is press-fitted into the recess 23v. The lid member 38 is fixed to the bottom surface of the recess 23v by a screw 39. In FIG. 6, illustration of a screw hole into which the screw 39 is screwed is omitted.

  As shown in FIG. 11B, the outer peripheral surface on the bottom surface side of the lid member 38 is an inclined surface 38a that is inclined so as to be directed inward in the radial direction toward the lower side. On the outer peripheral surface of the lid member 38, a groove 38b is formed that communicates from the upper end of the lid member 38 to the inclined surface 38a. The groove 38 b is formed so as to be slightly recessed from the outer peripheral surface of the lid member 38 toward the inside in the radial direction of the lid member 38. The width of the groove 38b is narrow.

  In this embodiment, the inner peripheral surface of the recess 23v and the groove 38b form a vent hole through which air discharged from the inside of the cylinder 23s passes and air supplied to the inside of the cylinder 23s passes. The air discharged from the inside of the cylinder 23s passes between the inner peripheral surface and the bottom surface of the recess 23v and the inclined surface 38a, and then passes upward through the vent hole and is discharged to the outside of the toilet seat lifting / lowering device 1. Is done. In addition, the air supplied to the inside of the cylinder 23s passes through the vent hole downward, and then passes between the inner peripheral surface and the bottom surface of the recess 23v and the inclined surface 38a, so that the inside of the cylinder 23s. To be supplied. The size of the vent hole is one factor that determines the buffering force of the damper mechanism 13. Instead of press-fitting the lid member 38 into the recess 23v, the outer peripheral surface of the lid member 38 may be welded to the inner peripheral surface of the recess 23v so that the vent hole is not filled.

(Main effects of this form)
As described above, in this embodiment, the guide shaft 11 and the holding mechanism 12 are arranged in a state shifted from each other in the left-right direction so as not to overlap in the front-rear direction. Therefore, in this embodiment, it is possible to reduce the size of the toilet seat lifting / lowering device 1 in the front-rear direction compared to the case where the guide shaft 11 and the holding mechanism 12 overlap in the front-rear direction.

  In this embodiment, the two holding mechanisms 12 are disposed between the two guide shafts 11 in the left-right direction. Therefore, in this embodiment, as compared with the case where the two holding mechanisms 12 are arranged outside the two guide shafts 11 in the left-right direction, the width of the toilet seat lifting / lowering device 1 in the left-right direction is not increased. The interval between the guide shafts 11 can be increased. Therefore, in this embodiment, it is possible to stabilize the ascending / descending state of the slider unit 10 that is guided by the guide shaft 11 and ascends and descends.

  In this embodiment, the back surface portion 17b is formed in a flat plate shape. Therefore, in this embodiment, the toilet seat lifting / lowering device 1 can be downsized in the front-rear direction. Further, in this embodiment, the left and right end portions of the back surface portion 17b are bent portions 17c that are bent toward the front side. Therefore, even if the back surface portion 17b is formed in a flat plate shape, It is possible to prevent deformation of the back surface portion 17b. Therefore, in this embodiment, even if a load that deforms the back surface portion 17b acts on the toilet seat lifting / lowering device 1, the deformation of the back surface portion 17b is suppressed, and the engagement that has entered the recesses 17d and 17e when the slider portion 10 is stopped. It is possible to suppress the protrusion 30a of the combined member 30 from coming off from the recesses 17d and 17e. As a result, in this embodiment, even if a load that deforms the back surface portion 17b acts on the toilet seat lifting / lowering device 1, it is possible to suppress a decrease in the maintenance function of the stopped state of the slider portion 10.

  In this embodiment, since the two holding mechanisms 12 are disposed between the two guide shafts 11 in the left-right direction, the left and right end portions of the back surface portion 17b can be easily bent toward the front side. That is, for example, when the two holding mechanisms 12 are disposed outside the two guide shafts 11 in the left-right direction, or when the guide shaft 11 and the holding mechanism 12 overlap in the front-rear direction, Since the concave portions 17d and 17e into which the protruding portion 30a of the combined member 30 enters are arranged at positions close to the left and right ends of the back portion 17b, it is difficult to bend the left and right end portions of the back portion 17b toward the front side. In the form, the left and right end portions of the back surface portion 17b are easily bent toward the front side.

  In the present embodiment, the toilet seat lifting / lowering device 1 includes two damper mechanisms 13. Therefore, in this embodiment, the damper mechanism 13 is configured while ensuring a buffering function that relaxes the lifting speed of the slider unit 10 as compared with the case where the toilet seat lifting apparatus 1 includes only one damper mechanism 13. It becomes possible to reduce the outer diameter of the cylinder 23s. Further, in this embodiment, since the two damper mechanisms 13 capable of reducing the outer diameter of the cylinder 23s are arranged so as to be adjacent to each other in the left-right direction, one damper mechanism having a large outer diameter of the cylinder 23s. Compared with the case where the toilet seat lifting / lowering device 1 is provided with 13, the toilet seat lifting / lowering device 1 can be downsized in the front-rear direction.

  In this embodiment, an opening 19b for preventing interference with the back surface portion 17b is formed on the rear end side of the cylindrical portion 19a. Therefore, in this embodiment, it is possible to reduce the distance between the spring holding member 19 and the back surface portion 17b in the front-rear direction while preventing interference between the spring holding member 19 and the back surface portion 17b. Therefore, in this embodiment, the toilet seat lifting / lowering device 1 can be reduced in size in the front-rear direction.

(Other embodiments)
The above-described embodiment is an example of a preferred embodiment of the present invention, but is not limited to this, and various modifications can be made without departing from the scope of the present invention.

  In the embodiment described above, the back surface portion 17b has the recess portion 17d, so that the stop state of the slider portion 10 can be maintained at two predetermined positions in the vertical direction between the position where the recess portion 17d is formed and the position where the recess portion 17e is formed. Although 17e is formed, a recess may be formed in the back surface portion 17b so that the stopped state of the slider portion 10 can be maintained at a predetermined position in the vertical direction. Further, a concave portion may be formed in the back surface portion 17b so that the stopped state of the slider portion 10 can be maintained at predetermined three or more locations in the vertical direction.

  In the embodiment described above, the number of the holding mechanisms 12 included in the toilet seat lifting / lowering apparatus 1 may be one, or may be three or more. Moreover, in the form mentioned above, the bending part 17c does not need to be formed in the back surface part 17b. Moreover, in the form mentioned above, the number of the damper mechanisms 13 with which the toilet seat raising / lowering apparatus 1 is provided may be three or more. The number of damper mechanisms 13 provided in the toilet seat lifting / lowering device 1 may be one. Furthermore, the damper mechanism 13 may be other than the pneumatic damper.

DESCRIPTION OF SYMBOLS 1 Toilet seat raising / lowering device 2 Western style toilet 3 Toilet bowl body 4 Toilet seat 9 Fixing part 10 Slider part 11 Guide shaft 12 Holding mechanism 13 Damper mechanism 14 Compression coil spring (second biasing member)
17a Lower end portion 17b Back surface portion 17c Bending portion 17d Recessed portion (first recessed portion)
17e recess (second recess)
23a Toilet seat fixing portion 23s Cylinder 30 Engaging member 30a Protruding portion (rear end portion of engaging member)
31 Compression coil spring (biasing member)
34 Piston X Left-right direction Y Front-back direction Y1 Front side Y2 Rear side

Claims (9)

A fixed portion fixed to a toilet body of a Western-style toilet, a slider portion to which a toilet seat of the Western-style toilet is fixed and which can be moved up and down with respect to the fixed portion, and supported by the fixed portion and vertically moving the slider portion Two guide shafts for guiding to and a holding mechanism for maintaining the stopped state of the slider portion stopped at a predetermined position in the vertical direction,
The axial direction of the guide shaft coincides with the vertical direction,
The two guide shafts are arranged in a state spaced from each other in a predetermined direction orthogonal to the vertical direction,
When the direction in which the two guide shafts are aligned is the left-right direction, and the direction perpendicular to the up-down direction and the left-right direction is the front-rear direction,
The guide shaft and the holding mechanism are arranged in a state shifted from each other in the left-right direction so as not to overlap in the front-rear direction,
The toilet seat lifting / lowering device is characterized in that the holding mechanism is disposed between the two guide shafts in the left-right direction. The slider portion includes a toilet seat fixing portion to which the toilet seat is fixed,
The toilet seat fixing portion is disposed on one side in the front-rear direction from the guide shaft,
In the front-rear direction, when the side on which the toilet seat fixing portion is disposed with respect to the guide shaft is the front side, and the opposite side is the rear side,
The fixed portion includes a lower end portion that supports a lower end side of the guide shaft, and a back portion that rises upward from a rear end side of the lower end portion and is disposed on the rear side of the guide shaft,
The toilet seat lifting / lowering device according to claim 1, wherein the holding mechanism maintains a stopped state of the slider portion by contacting a front surface of the back surface portion. The holding mechanism includes an engagement member that is held by the slider portion so as to be movable in the front-rear direction, and a biasing member that biases the engagement member toward the rear side,
The toilet seat lifting / lowering device according to claim 2, wherein the back portion is formed with a recess that is recessed toward the rear side and into which a rear end portion of the engagement member enters.   The toilet seat lifting / lowering apparatus according to claim 3, wherein a first recess and a second recess disposed above the first recess are formed as the recess on the back surface portion. The back portion is formed in a flat plate shape,
The toilet seat lifting / lowering device according to claim 3 or 4, wherein left and right end portions of the back portion are bent portions that are bent toward the front side.   6. The damper mechanism according to claim 1, further comprising: a damper mechanism for reducing the ascending / descending speed of the slider part; and a second urging member that urges the slider part upward with respect to the fixed part. The toilet seat lifting and lowering device according to claim 1.   The toilet seat lifting / lowering device according to claim 6, wherein the damper mechanism is a pneumatic damper having a cylinder and a piston disposed on an inner peripheral side of the cylinder.   The toilet seat lifting / lowering device according to claim 7, wherein the second urging member is a compression coil spring and is disposed coaxially with the piston and the cylinder.   The toilet seat lifting / lowering device according to claim 7 or 8, comprising a plurality of the damper mechanisms arranged adjacent to each other in the left-right direction.

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