JPH09299845A - Paste applicator for wallpaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the opening/closing work of a foot part and to improve the stability of an apparatus in use by providing a lock member which contacts the side of the foot part to hinder it form being retracted and a holding means which holds the lock member movably to the allowable position of the rotational motion of the foot part to be retracted. SOLUTION: The foot part of a paste applicator for wallpaper, in which feet 1 are attached freely rotatably at four corners of the lower surface of a base part 8 respectively, supports a main body part 10 in a suspended state when it is used and is rotated and deformed to be folded below the main body part 10 when it is retracted. A round rod 3 as a lock member, a pulling spring 4 constituting an energization means, and a long hole 5 as a holding means are formed in the root part of the foot l. The rod 3 holds the inside of the hole 5 slidably and is energized toward the lower end of the hole 5 by the spring 4. In this way, force to move the foot 1 in the rotational direction is received by the hole 5 to hold the foot 1 stably when it is used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wallpaper gluing machine for continuously applying glue to the back surface of a long wall covering when applying a sheet-like wall covering to an indoor wall surface, and particularly to its legs. The present invention relates to a folding structure of a part.

[0002]

2. Description of the Related Art FIG. 4 shows an example of a schematic structure of a conventional general wallpaper sizing machine. In this wallpaper sizing machine, the main body 21
The main body 21 is provided with a glue tub (not shown) for holding glue, a plurality of rolls 23 to 29, and the like inside, and further has a control box 30 outside. .

In such an apparatus, the glue is uniformly applied to the back surface of the wall covering material while the wall covering material 33 is drawn in from the rear of the main body and pulled out from the front. The plurality of rolls 23 to 29 and the like inside the main body driven by an electric motor (not shown) take in the wall covering material 33 and the like.
There is also a manual type gluing machine that conveys the wall covering material by an operation based on the pulling force of the user from the front without using an electric motor.

Specifically, the upper pinch roller 27a and the lower pinch roller 27b take in the wall covering material 33 inside the main body portion 21, and the drive roll 26 and the pressing roll 28 feed the wall covering material 33 to apply tension. At the same time, the gluing roll 23 and the doctor roll 24 are used to paste a uniform amount.

Here, this type of wallpaper gluing machine is not fixed and used in a predetermined factory or the like, but generally brought into a work site such as a construction site and used. Therefore, in order to reduce the space and storage space when the device is transported by a truck or the like, the leg portion 31 is rotated so as to be tilted toward the back surface side of the main body with the root portion as the rotation center, and each leg is rotated. The structure allows the parts to be folded.

FIG. 5 shows an example of a conventional folding structure. The leg opens and closes (rotates) around a fulcrum extending in the front-rear direction of the device, and in the same figure (a), it can be turned by hooking a snap lock 31a on the hook attached to the leg. It fixes the legs in use. Further, in FIG. 2B, the knob bolt 31 is attached to the female screw formed on the leg.
The leg is fixed in a use state by screwing in b.

[0007]

However, FIG.
In the conventional example shown in (a), since it is necessary to individually hang the snap lock after turning the legs to the use state, the work content is complicated, and if the lock of the snap lock is forgotten, The device may fall down without being fixed in use.

Further, when the apparatus is in use, it may be subjected to a load or impact from the lateral direction (direction A), which causes the legs and hooks to deform and bend, or in the worst case, snap. It is possible that the lock may come off.

Also in the conventional example shown in FIG. 5B, since it is necessary to tighten or loosen the knob bolts at the beginning and the end of the gluing work, the assembly and storage work of the legs are complicated in this case as well. Is. Moreover, if the number of times is repeated, the threads on the female screw side may be crushed. In that case, the legs need to be replaced for repair, which makes maintenance difficult.

The present invention has been made in order to solve the above problems, and facilitates the opening and closing work of the legs, and improves the stability and maintainability of the device in the usage state. Aim to get.

[0011]

According to a first aspect of the present invention, there is provided a main body for applying glue to the back surface of the sheet-like wall covering by means of an internally provided gluing roll, and a lower surface side of the main body. A leg that is rotatable near both ends around a rotation axis extending in the front-rear direction so as to be in a stored state substantially parallel to the back surface of the main body and a usage state vertical to the lower surface of the main body. In the wallpaper gluing machine having the above, when the leg portion is in use, it comes into contact with the side surface of the leg portion at a position on the root side of the rotation center of the leg portion, and the leg portion is rotated to the stored state. A state in which the lock member can be moved to a position that allows the rotation operation of the leg portion to the stored state so as to release the engagement state between the lock member that prevents movement and the leg portion and the lock member. Holding means and the lock held by the holding means. Member, providing with wallpaper glue machine, characterized in that it comprises a biasing means for biasing the lock position direction in the use state of the leg portion within the movable range.

In the present invention, when the leg is in use, the lock member prevents the leg from rotating to the stored state, so that the leg is kept in the use state, so that the main body is in the use state. It is kept stable at.

The lock member abuts the side surface of the leg portion in the direction of rotation to the stored state at a position closer to the root than the center of rotation of the leg portion. Is prevented from rotating and is kept in a used state.

The lock member holding means holds the lock member in a movable state between the lock position of the lock member and a position (release position) outside the rotation locus of the root of the leg. Anything can be done. By this holding means,
By moving the lock member to the release position when the leg is rotated, the engagement state between the leg portion and the lock member is released,
The rotation of the legs is performed without restriction by the lock member.

Further, since the lock member is always biased to the lock position within the movable range of the holding means by the biasing means, when the leg is rotated to the use state, the lock member is also biased by the biasing means. Move to the lock position, and the fixed state of the legs is maintained.

When the leg portion is rotated from the use state to the storage state, the lock member may be moved to the release position within the working range of the holding means against the urging force of the urging means.
Therefore, it is preferable that the urging force of the urging means is such that the lock member can be easily moved by the force of the user's finger.

Here, the leg members are usually provided at the left and right end portions of the main body portion, and are deformed into a stored state by folding each of them inside. For this reason, the portion of the leg member on the base side of the fulcrum (rotation center) moves (rotates) in the outer direction of the main body when rotating from the used state to the stored state.

For this reason, if the movable range of the lock member by the holding means allows the movement from the lock position to the outside (or the circumferential direction of the rotational movement to the storage state as viewed from the rotational center). When moving from the use state to the storage state, the biasing force of the biasing means accounts for most of the holding force for holding the lock member at the lock position.

In this case, the urging force of the urging means must be determined in consideration of the weight of the main body and the like so that the lock member does not move easily. However, if this urging force is increased, a large force is required for the user to move the lock member during the storage operation.

On the contrary, if the movable range of the lock member by the holding means limits the movement from the lock position to the outside (or the circumferential direction of the rotational movement to the storage state as viewed from the rotational center). The force applied to the lock member when the leg member is rotated to the stored state is received by the holding member of the lock member, and the leg portion is stabilized in the used state.

That is, the holding means includes the lock position of the lock member within its movable range, restricts the outward movement with respect to the main body, and reaches the release position outside the rotation locus of the root end of the leg. It is preferable that the structure allows the movement of the.

As an example, the holding means for the lock member is
It is conceivable that the lock member has a movable range including the fixed position of the lock member and allowing the movement of the lock member from the lock position to the substantially vertical release position.

In this case, the movable range of the lock member is substantially vertical, and if the lock member is held so as to slide within this range, the lock member moves horizontally from the locked position. (Movement in the direction in which force is transmitted to the lock member due to movement of the leg member in the stored state) is limited to the horizontal movable range of the holding means, so that the leg member cannot be rotated from the used state. Restrict.

For example, if the holding means is configured to allow the lock member to move in the vertical direction by using an elongated hole or the like provided substantially vertically, the movable range can be slid in the elongated hole in the vertical direction. With respect to the movement in the horizontal direction while being formed, it cannot contact the lateral wall of the elongated hole to move, and as a result, the movement is limited here.

The lock member may be of any type as long as it has a structure that originally prevents rotation, but a structure that abuts on the side surface of the leg is adopted, and from there (outside the fulcrum) Since the members are disposed in the leg member, the leg member itself does not need to be significantly changed, and the leg member can have a relatively simple structure. Further, the lock member may be provided on each of the rotating leg portions, but in order to simplify the configuration, one locking member that prevents the pair of front and rear leg portions from rotating is provided for each of the left and right leg portions. It may be performed by a lock member.

In the invention described in claim 2, claim 1
In the wallpaper gluing machine described in, the lock member is
When the leg portion is in the housed state, the leg portion comes into contact with the outer peripheral surface portion of the leg portion located above or laterally of the center of rotation of the leg portion, and the holding means is configured such that the leg portion is in the housed state. The movable range is defined in a direction in which the lock member that abuts the outer peripheral surface of the leg portion can move against the urging force of the urging means when rotating to the use state. Is.

According to the present invention, the state in which the leg portion is in contact with the leg portion of the lock member when the leg portion is in the housed state is specified, and when the leg portion is rotationally deformed from the housed state to the used state by this configuration, The lock member does not hinder the rotation of the leg portion.

That is, in the present invention, when the leg portion is pivotally moved, the lock member is even moved to the released state, or the force associated with the pivotal movement of the leg member is transmitted to the lock member to the lock member. The lock member is moved within the movable range of the holding means against the biasing force of the lock member.

In the present invention, when the legs are in the retracted state,
The lock member comes into contact with the outer peripheral surface portion of the leg portion located above or to the side of the rotation center of the leg portion. here,
The lock member abuts on the outer peripheral surface on the root side (opposite to the grounding side) of the fulcrum of the leg (the center of rotation), and is located above or to the side (outside the main body) when in the stored state It is the part to do.

When the leg is rotated from the stored state to the used state, the root portion is rotated (moved) upward from the rotation center. When the lock member comes into contact with the outer peripheral surface portion located above the leg portion (for example, the side surface portion at the base in a tilted state) during storage, the lock member receives an upward force as the leg portion moves. At the same time, if the upward movement is not permitted, the legs cannot be rotated. In this case, the holding means is configured to allow upward movement from the abutting position in the housed state, and the urging means moves the locking member by the turning force of the legs when moving upward. Any force smaller than the force transmitted to

On the other hand, when the lock member comes into contact with the lateral outer peripheral surface of the leg root portion (for example, the root end surface portion in a fallen state) during storage, the lock member is rotated during use. Since the contact surface moves in a direction substantially along the surface of the contact portion, the biasing force on the lock member remains almost unchanged.
Also in this case, the lock member does not hinder the pivotal movement of the leg as long as it has a movable range slightly upward or laterally from the contact position during storage.

In any case, normally, the leg portion is deformed to the use state by, for example, rotating the leg portion by hand, or lifting the leg portion together with the pedestal portion and rotating the leg portion by its own weight. I'm fine. In these cases, considering the moment due to the total weight and length of the leg, the moment transmitted from the fulcrum to the close position (lock member) on the root side is large,
Usually, it is greater than the biasing force of the lock member. For this reason, the leg member is extremely naturally opened (rotated and deformed) in the use state without being prevented from being turned into the use state by the lock member and being hardly affected by the urging force of the urging means.

Further, if the leg member comes close to the drooping state (usage state) with the turning operation from the stored state to the use state,
The lock member comes into contact with the side surface side (side surface during use) of the leg portion in that state, and the lock member is urged by the urging means as it is to move to the lock position.

At this time, the urging force to the lock member also serves as a force in the rotational movement direction of the leg portion to the use state, so that the movement to the use state can be performed more smoothly. In addition, the lock member is automatically set without checking whether or not the legs are correctly set in the use state, and the preparation operation for the use state is extremely simplified.

Considering the movement of the lock member due to the rotation of the leg portion to the use state and the fixed state of the lock member in the use state, the movable range of the holding means is in the rotation direction at the lock position. In a state where the movement is restricted and only the upward movement is shared, it is preferable that the movable range is constituted by, for example, an elongated hole in the vertical direction.

Further, it is preferable that the movable range (for example, an elongated hole) is one that allows a slight outward movement toward the upper side (for example, an elongated hole inclined outward). As a result, when the housing is rotated from the stored state to the used state, the lock member comes into contact with the outer side surface of the leg portion before being completely rotated to the used state, and the biasing means moves the lock member to the locked position. , The legs are smoothly rotated and fixed in the locked position.

Further, even if the leg is erroneously deformed during use and the lock position abutting on the leg is changed, if the lateral movement component is included in the movable range, these It is possible to securely deform the legs by locking the legs.

[0038]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 partially shows the legs of the wallpaper gluing machine when the legs are open (in use, the legs are substantially hanging from the lower surface of the main body).

The legs of this embodiment are the legs 1 provided at the four corners of the lower surface of the pedestal 8 on which the main body 10 is placed.
Each leg 1 is rotatably attached to a fulcrum 2 which is the center of rotation. Therefore, in the use state, as shown in the drawing, the main body is supported by being supported by the lower surface of the main body, while it is pivotally deformed about the fulcrum 1 when the legs are closed (stored state). Is folded under the main body 10. Each leg 1 has a fulcrum 1
Is a shaft in the front-back direction (rotating shaft) at both ends of the main body,
It is folded toward the center of the lower surface of the main body.

The base of the leg 1 is provided with a round bar 3 as a lock member, a tension spring 4 constituting a biasing means, and an elongated hole 5 as a holding means.
It is held slidably inside.

The round bar 3 is stretched in the front-rear direction of the main body (the same direction as the rotation axis of the leg 1) and is urged by the tension spring 4 toward the lower end of the elongated hole 5. The lower end of the elongated hole 5 is located above the fulcrum 2 that serves as the rotation axis (the portion of the leg root from the rotation axis), and the upper end thereof is outside (upper) the rotation locus of the leg root. The long hole 5 restricts the movable range of the lock member.

Since one end of the tension spring 4 is fixed to the fulcrum 2 and the other end is connected to the round bar 3, the round bar 3 is always biased in the fulcrum direction (the lower end direction of the elongated hole 5). . In this state, the round bar 1 is attached to the side surface of the long hole 5 in the single hand direction and the leg 1
Engages with the outer surface of the root of the. Even if the leg 1 tries to move in the rotation direction, the force is received by the side surface portion of the elongated hole 5 via the round bar 3, so that the usage state of the leg is stably held. Further, the upward movement of the round bar 3 has a small force received from the leg portion 1 and is urged downward, so that the round bar 3 is reliably held in the locked position.

The end of the round bar 3 is inserted and held in the slot 5, and can be moved along the longitudinal direction of the slot. The long hole 5 is a leg support plate 7 that holds a fulcrum or the like.
It is formed on (a plane plate perpendicular to the rotation axis),
As shown in FIG. 1, its longitudinal direction is obliquely upward (inclined outward toward the upper side), and the distance between the lock member and the fulcrum 2 changes as the round bar 3 moves in the longitudinal direction. To do.

In FIG. 1, the leg 1 is shown in use, but when the leg 1 is rotated in the direction of folding (deforming into the stored state), the urging force of the tension spring 4 is resisted. The round bar to the open position (upper end position of the long hole 5, or
If the leg 1 is moved to a position outside the rotation locus of the root end), the leg 1 can be rotated without any obstacle due to the lock member.

Further, as the distance between the round bar 3 and the fulcrum 2 becomes longer, the tension spring 4 also stretches and the biasing force becomes stronger. Therefore, when the round bar 3 comes out of the locked position, the biasing force in the lock position direction is increased. Since the height increases, the rotation of the leg 1 is prevented by the round bar 3 contacting the root side surface of the leg in the use state, and the leg 1 is stably maintained and fixed in the use state.

The elongated hole 5 has a length obliquely above and below including the lock position. This is because when the leg portion 1 is deformed in the use state, for example, when the leg portion 1 is bent, the lock position of the round bar 3 (contact position with the leg portion 1) may change. Even in such a case, the oblong hole 5 is formed obliquely to allow the lateral movement (with the longitudinal movement), so that even if the lock position changes, the round bar can be correspondingly moved. The contact position of 3 can be changed.

That is, if the round bar 3 is moved along the longitudinal direction, it can be moved up and down as well as left and right.
Even if the side surface of the leg that is the contact surface (vertical surface in normal use) is slanted, if it moves in the elongated hole 5 accordingly, it can be stored in the corresponding lock position.

Next, FIG. 2A shows the legs of the wallpaper gluing machine in the stored state. Similarly to FIG. 1, FIG. 2 also partially shows the vicinity of the base of the leg 1. In this state, the outer peripheral surface located laterally of the leg 1 is the root end surface, but in this embodiment, the inner side surface of the leg 1 (the upper surface in the figure) which is the outer peripheral surface where the round bar 3 is located above. Is in contact with.

Further, a stopper 6 which is a storage state holding means provided on the pedestal portion 8 is engaged with the lower end of the leg 1 so that the leg 6 can be rotated from the storage state. It is blocked and kept in a stored state. Further, by releasing the stopper 6, the leg 1 can be moved to the use state.

As shown in FIGS. 2A and 2B, the elongated hole 5 has a movable range in the moving direction of the side surface (the upper surface in the drawing) which comes into contact with the round bar 3 when the leg 1 rotates. Is formed. For this reason, when the leg 1 starts to rotate about the fulcrum 2 due to its own weight or human power, the round bar 3 comes into contact with the side surface of the leg 1 (moves upward due to the rotation), and the spring It moves upward in the elongated hole 5 against the urging force of 4.

Further, as the leg 1 rotates, the contact surface of the round bar 3 moves while contacting the root end surface of the leg 1 and the outer side surface one after another. Here, FIG. 2B shows a state of transition from the inner side surface (the outer peripheral surface located above in the stored state) to the root end surface (outer peripheral surface located to the side in the stored state).
Then, finally, the state shown in FIG. 2B is changed to the state shown in FIG. 1, and the leg 1 is put into use.

The force applied to the round bar 3 when the leg 1 is rotated is
It is larger than the urging force of the spring 4, and even when the leg 1 is rotationally deformed and moved from the stored state to the used state, the stopper 6 is simply released and the leg 1 is rotated by the action of its own weight. Since it can be deformed, the work for opening the leg becomes easy. Further, as the leg 1 rotates, the round bar 3 serving as the lock member automatically fits in the lock position (see FIG. 2).
Since the state of (b) is changed to the state of FIG. 1, it is not necessary to fix the leg 1 (operation of the lock member), and workability is improved also in this respect.

Further, when the spring force of the tension spring 4 is reduced due to long-term use, the tension spring 4 may be replaced, and when the round bar 3 is worn, the round bar 3 may be replaced. Also, the maintainability is improved.

In this embodiment, the round bar 3 is in contact with the side surface of the leg (the outer peripheral surface located above in the housed state) in the housed state, but the base end surface of the leg (sideways in the housed state). It is also possible to have a configuration in which it contacts the outer peripheral surface).
In this case, the influence of the biasing force of the spring at the time of the turning operation is further reduced, but the movable range of the round bar has to be wide in the lateral direction (for example, the elongated hole is formed by further inclining it obliquely). ), Fixing at the time of locking tends to be a little unstable.

In the present embodiment, the elongated hole 5 is formed obliquely upward, but at least at the lock position, the elongated hole 5 is moved in the outward direction (the direction in which the force is applied by the rotation of the leg to the retracted state). As long as it is limited and moves upward (the direction in which the force is applied by the rotation of the leg to the used state) (having a movable range), the angle may be appropriately determined according to the use situation.

For example, as shown in FIGS. 3 (a) to 3 (c), it may be a long hole 5'extending vertically upward. In this case, the leg at the time of transition from the stored state to the used state. 1
The movement from the outer peripheral surface above to the side outer peripheral surface is promptly performed. Further, in the present embodiment, a tension spring is used as the biasing means, but a round bar (lock member)
As long as it is urged toward the lock position within its movable range, for example, a compression coil spring or a leaf spring may be used, or another elastic member may be used.

Further, in another embodiment, the shape of the elongated hole is substantially vertical in the vicinity of the lock position and goes upward. Therefore, the movable range of the holding means may be constituted by, for example, a curved sliding groove that curves outward (or inward). In this case, the locus of movement of the leg from the stored state to the state of use and the locus of movement of the lock member that comes into contact with the outer peripheral surface of the leg should be taken into consideration so as not to apply excessive force. .

[0058]

According to the invention described in claim 1, the open state of the wallpaper gluing machine is stable and the work for closing the leg can be easily performed. Further, even if the components of the opening / closing mechanism are damaged, they can be easily replaced.

According to the invention described in claim 2, the work for opening the legs can be easily performed.

[Brief description of drawings]

FIG. 1 is an explanatory view partially showing a leg portion of a wallpaper gluing machine according to an embodiment of the present invention in a front view.

FIG. 2 is an explanatory view partially showing, in a front view, a change caused by the rotation of the legs of the wallpaper gluing machine according to the embodiment of the present invention.

FIG. 3 is an explanatory view partially showing, in a front view, a change caused by rotation of legs of a wallpaper gluing machine according to another embodiment of the present invention.

FIG. 4 is an explanatory diagram showing the entire conventional wallpaper gluing machine.

FIG. 5 is an explanatory diagram showing an example of a folding structure of a conventional wallpaper gluing machine.

[Explanation of symbols]

 1-leg 2-fulcrum 3-round bar 4-tensile spring 5-long hole 7-leg support plate 8-・ ・ ・ Pedestal part 10 ・ ・ ・ Main body

Front page continuation (72) Inventor Takashi Ikeshima 70 No. 70, Honjo, Fukuoka-cho, Nishitonami-gun, Toyama Prefecture Yayoi Chemical Industry Co., Ltd.

Claims (2)

[Claims] 1. A main body portion for applying glue to the back surface of a sheet-shaped wall covering by an internally provided gluing roll, and a rotating shaft extending in the front-rear direction in the vicinity of both end portions on the lower surface side of the main body portion. In the wallpaper gluing machine, which has a leg portion that is rotatable substantially in a storage state that is substantially parallel to the back surface of the main body portion and a use state that is vertical to the lower surface of the main body portion, the leg portion is in the use state. When, in contact with the side surface of the leg portion at a position on the root side from the center of rotation of the leg portion,
A lock member that prevents the leg portion from rotating to the stored state, and a position that allows the leg portion to rotate to the stored state so as to release the engagement state between the leg portion and the lock member. Holding means for holding the lock member in a movable state up to, and a biasing means for biasing the lock member held by the holding means in the movable range thereof in the lock position direction in the use state of the leg portion. A wallpaper gluing machine characterized by having and. 2. The lock member is configured to abut on an outer peripheral surface portion of the leg portion located above or on a side of a rotation center of the leg portion when the leg portion is in a stored state, and the holding member When the leg is rotated from the housed state to the used state, the movable range is moved in a direction in which a lock member that abuts an outer peripheral surface of the leg can move against the biasing force of the biasing unit. The wallpaper sizing machine according to claim 1, wherein the wallpaper sizing machine is defined.